CN110912326B - Three-phase terminal block, drive assembly and vehicle - Google Patents

Three-phase terminal block, drive assembly and vehicle Download PDF

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Publication number
CN110912326B
CN110912326B CN201911247025.0A CN201911247025A CN110912326B CN 110912326 B CN110912326 B CN 110912326B CN 201911247025 A CN201911247025 A CN 201911247025A CN 110912326 B CN110912326 B CN 110912326B
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CN
China
Prior art keywords
wiring
phase
terminal
groove
connection
Prior art date
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Active
Application number
CN201911247025.0A
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Chinese (zh)
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CN110912326A (en
Inventor
姜桂宾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Enpower Electric Co Ltd
Original Assignee
Zhuhai Enpower Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhuhai Enpower Electric Co Ltd filed Critical Zhuhai Enpower Electric Co Ltd
Priority to CN201911247025.0A priority Critical patent/CN110912326B/en
Publication of CN110912326A publication Critical patent/CN110912326A/en
Priority to EP22217193.6A priority patent/EP4181362A1/en
Priority to EP22217189.4A priority patent/EP4181361A1/en
Priority to EP22217191.0A priority patent/EP4180257A1/en
Priority to EP20895432.1A priority patent/EP4071979B1/en
Priority to JP2022532750A priority patent/JP7443522B2/en
Priority to PCT/CN2020/128919 priority patent/WO2021109843A1/en
Priority to EP22217195.1A priority patent/EP4181364A1/en
Priority to EP22217194.4A priority patent/EP4181363A1/en
Priority to US17/832,845 priority patent/US12273010B2/en
Priority to US17/832,857 priority patent/US12261506B2/en
Priority to US17/832,758 priority patent/US12261504B2/en
Priority to US17/832,790 priority patent/US12261505B2/en
Priority to US17/832,881 priority patent/US12244208B2/en
Priority to US17/832,935 priority patent/US12323028B2/en
Priority to JP2023019508A priority patent/JP7427818B2/en
Priority to JP2023019499A priority patent/JP7427817B2/en
Priority to JP2023019485A priority patent/JP7506778B2/en
Priority to JP2023019488A priority patent/JP7427816B2/en
Priority to JP2023019504A priority patent/JP7506779B2/en
Application granted granted Critical
Publication of CN110912326B publication Critical patent/CN110912326B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/225—Detecting coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

本发明提供一种三相接线座、驱动总成和交通工具，包括接线座体和三个单相接线柱，接线座体呈圆柱状延伸，三个单相接线柱沿接线座体的轴向布置，三个单相接线柱设置在接线座体的外周，单相接线柱在接线座体的轴向两端分别设置有第一接线端和第二接线端。由于定子具有三相绕组，故通过三个单相接线柱设置在接线座体的外周，继而三个单相接线柱能够对应地定子的接线端连接，继而优化接线布局，并且三个单相接线柱之间的空间能够放置轴承等空间，从而提高结构布局紧凑度。

The present invention provides a three-phase terminal block, a drive assembly and a vehicle, comprising a terminal block body and three single-phase terminals, wherein the terminal block body extends in a cylindrical shape, the three single-phase terminals are arranged along the axial direction of the terminal block body, the three single-phase terminals are arranged at the periphery of the terminal block body, and the single-phase terminals are respectively provided with a first terminal and a second terminal at both axial ends of the terminal block body. Since the stator has a three-phase winding, the three single-phase terminals are arranged at the periphery of the terminal block body, and then the three single-phase terminals can be connected to the terminals of the stator accordingly, thereby optimizing the wiring layout, and the space between the three single-phase terminals can be used to place bearings and the like, thereby improving the compactness of the structural layout.

Description

Three-phase wire holder, drive assembly and vehicle
Technical Field
The invention relates to the field of new energy, in particular to a three-phase wiring seat, a driving assembly and a vehicle.
Background
The new energy vehicles do not burn gasoline or diesel oil to generate power, so the new energy vehicles have the characteristics of environmental protection, little pollution and the like, and under the condition that new energy power generation such as water energy, wind energy, solar energy, nuclear energy and the like is greatly popularized and applied, various new energy vehicles are gradually popularized and applied, such as new energy electric cars, new energy electric buses, new energy electric trucks, new energy electric cleaning vehicles, new energy electric rail vehicles, new energy electric flying vehicles, new energy electric shipping vehicles and the like.
New energy vehicles are generally equipped with a battery, a motor control device, a motor, and a power generation device, wherein a power tube in the motor control device receives the direct current output by the battery, inverts the direct current into alternating current to be output to the motor, and then the motor outputs a rotational driving force to drive the power generation device such as wheels, paddles, and the like to drive the vehicle to travel.
With the integration of the vehicle to the drive assembly, i.e. the motor and the motor control device, the occupied space of the device can be further optimized and reduced, so that more space is made for riding space, battery space and the like, and when the motor and the motor controller are integrated, the connection structure between the motor and the motor controller and the related layout optimization are required to be considered, the cooling of the motor and the cooling of the motor controller are required to be considered together, the optimized arrangement of the related electric connection structure is required to be considered, and the assembly convenience of devices is also required to be considered, so that the efficient integration of the driving assembly can be realized.
Disclosure of Invention
A first object of the present invention is to provide a three-phase wire holder that optimizes a wiring layout using circumferentially distributed terminals.
A second object of the present invention is to provide a drive assembly mounted with the three-phase wire holder.
A third object of the present invention is to provide a vehicle mounted with the above-described drive assembly.
In order to achieve the first object of the invention, the invention provides a three-phase wire holder, which comprises a wire holder body and three single-phase wiring terminals, wherein the wire holder body extends in a cylindrical shape, the three single-phase wiring terminals are arranged along the axial direction of the wire holder body, the three single-phase wiring terminals are arranged on the periphery of the wire holder body, and the two axial ends of the single-phase wiring terminals are respectively provided with a first wiring terminal and a second wiring terminal.
According to the scheme, the stator is provided with the three-phase windings, so that the three single-phase binding posts are arranged on the periphery of the wiring seat body, then the three single-phase binding posts can be correspondingly connected with the wiring terminals of the stator, wiring layout is optimized, and the space between the three single-phase binding posts can be used for placing the space such as a bearing, so that the compactness of the structural layout is improved.
In a further scheme, a wiring groove is formed in the wiring seat body, and on the axial projection of the wiring seat body, a first wiring terminal is positioned at the periphery of the wiring groove, and a second wiring terminal is positioned in the wiring groove.
From the above, through first wiring end and second wiring end being located the outside inboard of wiring groove respectively, first wiring end is the scattered overall arrangement along circumference and can realizes the dodging to the bearing, and the second wiring end is the compact overall arrangement along circumference and can realize the connection centralization to motor control device, improves motor controller's circuit layout utilization ratio.
The wiring seat body comprises a middle ring part, an external connection part and an internal connection part, wherein the middle ring part is in annular arrangement and surrounds the wiring groove, the internal connection part extends from the middle ring part towards the inside of the wiring groove, the external connection part extends from the middle ring part towards the outside of the wiring groove, the single-phase wiring terminal penetrates through the middle ring part, the first wiring terminal is located at the external connection part, and the second wiring terminal is located at the internal connection part.
Still further, the external connection portion and the first terminal are both located on an axially outer side of the middle ring portion.
In a further scheme, the three single-phase binding posts are connected with the middle ring part, the external connection part and the internal connection part through a secondary injection molding process.
From the above, the middle ring part, the external connection part and the internal connection part are arranged and manufactured by secondary injection molding, so that the middle ring part, the external connection part and the internal connection part are wrapped outside the single-phase wiring terminal, the protection between the two wiring terminals is improved, the middle ring part can be used for realizing the installation and positioning of other devices, and the external connection part and the first wiring terminal are positioned at the outer side of the middle ring part in the axial direction and the outer side of the radial direction and extend outwards, so that a space can be avoided for a bearing or a rotary transformer, and the space utilization rate is improved.
In a further aspect, the external connection portion is provided with a blocking wall on an outer periphery of the first terminal.
From the above, the retaining wall can provide certain positioning and limiting for the wire connection, and also plays a role in insulating the wiring terminal of the stator, so that the connection stability is improved.
Still further, the wiring groove is internally provided with a mounting part, and the mounting part is positioned on one side of the second wiring terminal.
From the above, can install the three-phase wiring seat and fix in drive assembly through the installation department, and with the installation department being located the arrangement of one side of second wiring end, the convenient operation of installing and removing.
In a further scheme, a magnetic ring is further arranged on the periphery of the wiring seat body.
Therefore, the magnetic ring is arranged on the periphery of the wiring seat body, so that electromagnetic interference is reduced.
In order to achieve the second object of the present invention, the present invention provides a driving assembly, which includes the three-phase wire holder of the above scheme.
To achieve the third object of the present invention, the present invention provides a vehicle including the drive assembly of the above-mentioned aspect.
Drawings
Fig. 1 is a block diagram of an embodiment of a drive assembly of the present invention.
Fig. 2 is a block diagram of an embodiment of the drive assembly of the present invention in another perspective.
Fig. 3 is an exploded view of an embodiment of the drive assembly of the present invention.
Fig. 4 is a block diagram of a housing on a side of a motor mounting cavity in an embodiment of a drive assembly according to the present invention.
FIG. 5 is a block diagram of a housing on the side of the control mounting cavity in an embodiment of the drive assembly of the present invention.
Fig. 6 is a block diagram of a three-phase wire holder in an embodiment of the drive assembly of the present invention.
Fig. 7 is a block diagram of a three-phase wire holder in another view of an embodiment of the drive assembly of the present invention.
Fig. 8 is an exploded view of a three-phase wire holder in an embodiment of the drive assembly of the present invention.
Fig. 9 is a block diagram of the peripheral wall of the housing in an embodiment of the drive assembly of the present invention.
FIG. 10 is a cross-sectional view of an embodiment of the drive assembly of the present invention in a radial direction at the partition wall.
Fig. 11 is a cross-sectional view of an embodiment of the drive assembly of the present invention taken axially at a three-phase junction housing.
Fig. 12 is a block diagram of a three-phase wire holder and motor control device in an embodiment of the drive assembly of the present invention.
Fig. 13 is an exploded view of a three-phase wire holder and motor control device in an embodiment of the drive assembly of the present invention.
Fig. 14 is an exploded view of a power tube device in accordance with an embodiment of the drive assembly of the present invention.
Fig. 15 is a cross-sectional view of an embodiment of the drive assembly of the present invention in a radial direction at the power tube.
FIG. 16 is an exploded view of a stacked busbar assembly in an embodiment of the drive assembly of the present invention.
Fig. 17 is a block diagram of a motor control apparatus in an embodiment of the drive assembly of the present invention with a main circuit board omitted.
Fig. 18 is a block diagram of an embodiment of the drive assembly of the present invention at an axial rear side view angle with the cover omitted.
Fig. 19 is an exploded view of a motor control device and an outlet assembly in an embodiment of the drive assembly of the present invention.
FIG. 20 is an axial cross-sectional view of an embodiment of the drive assembly of the present invention.
The invention is further described below with reference to the drawings and examples.
Detailed Description
Drive assembly embodiment:
Referring to fig. 1 to 3, the driving assembly includes a casing 1, a cover 18, a casing 14, a motor control device 3, a bearing 17, a rotor 16 and a stator 15, referring to fig. 4 and 5, and referring to fig. 11, the casing 1 is cylindrically provided, a cavity is axially provided in the casing 1, an inner wall of the casing 1 is radially provided with a partition wall 11, the partition wall 11 divides the cavity into a motor installation cavity 121 and a control installation cavity 122, the partition wall 11 is axially provided with an installation hole 111 in the middle, the partition wall 11 is provided with an installation annular wall 112 extending toward the motor installation cavity 121 at the outer circumference of the installation hole 111, the installation annular wall 112 and the partition wall 11 form an installation step on the inner side, the bearing 17 (not specifically shown structure) is provided in the installation annular wall 112, the partition wall 11 is penetratingly provided with three wiring holes 113 and three threading holes 114, the diameter of wiring hole 113 is greater than through wires hole 114, three wiring hole 113 and three through wires hole 114 are staggered interval along bearing 17's periphery evenly distributed, the installation annular wall 112 is provided with first groove 116 of dodging in every wiring hole 113 department, first groove 116 of dodging is the indent setting of arc, the partition wall 11 is provided with three second groove 115 of dodging towards the first end wall of motor installation cavity 121, the extending direction of groove 115 is inclined in warp arrangement is dodged to the second, the extending direction of groove 115 is the acute angle (preferably 60 degrees) contained angle setting is dodged to two adjacent second, the groove 115 is dodged to the second from wiring hole 113 towards the inner wall of casing 1 and stator 15 extension, the width of groove 115 is dodged to the second is the same with the diameter of wiring hole 113. The cover 18 covers the outside of the control installation cavity 122 and is fixedly connected with the machine shell 1.
At the control installation cavity 122 of the opposite side of the motor installation cavity 121, the partition wall 11 is provided with a positioning annular wall 117 extending towards the control installation cavity 122 at the periphery of the installation hole 111, the positioning annular wall 117 is located on the second end wall of the partition wall 11 towards the control installation cavity 122, the partition wall 11 is provided with three installation tables 118 at the outer side of the positioning annular wall 117, the cross sections of the installation tables 118 are arranged in an arc shape, the installation tables 118 are provided with hollowed-out parts in the middle, one installation table 118 is located between two adjacent wiring holes 113, the installation tables 118 are provided with fixing holes 119 close to the inner side, and the three fixing holes 119 are uniformly distributed along the circumferential direction.
Referring to fig. 6 to 8, and referring to fig. 11 in combination, the three-phase wire holder 2 includes a wire holder body 21 and three single-phase wire holders 22, the wire holder body 21 may be generally cylindrical in extension, the wire holder body 21 is made of an insulating material such as plastic, and the like, the wire holder body 21 includes a middle ring portion 211, three external connection portions 212, and three internal connection portions 213, the middle ring portion 211 is annularly arranged and surrounds the wire holder 241, an annular convex edge is provided at an outer periphery of the middle ring portion 211, the middle ring portion 211 and the annular convex edge form an annular mounting step 242, the magnetic ring 28 is provided at the mounting step 242, the internal connection portions 213 extend from the middle ring portion 211 into the wire holder 241, the three internal connection portions 213 are uniformly arranged in a circumferential direction, the external connection portions 212 extend from the middle ring portion 211 outwardly into the wire holder 241, and the three external connection portions 212 extend not only axially outwardly, but also extend outwardly in a radial direction, the three external connection portions 212 are uniformly arranged in the circumferential direction, and one external connection portion 212 and one internal connection portion 213 are arranged along the same radial surface.
The single-phase wiring terminal 22 extends along the axial direction, the single-phase wiring terminal 22 includes connecting portion 221, first wiring terminal 222 and second wiring terminal 223, connecting portion 221 connects between first wiring terminal 222 and second wiring terminal 223, connecting portion 221 is the setting of buckling inwards from first wiring terminal 222 towards second wiring terminal 223, first wiring terminal 222 and second wiring terminal 223 are the cylindricality respectively and are provided with the connecting hole, single-phase wiring terminal 22 passes well circle portion 211, first wiring terminal 222 is located external portion 212 department, second wiring terminal 223 is located internal portion 213 department, and three single-phase wiring terminal 22 and well circle portion 211, external portion 212, internal portion 213 are connected through the two shot moulding technology, then well circle portion 211, external portion 212, internal portion 213 forms the encirclement to single-phase wiring terminal 22 in order to realize corresponding insulation, first wiring terminal 222 and second wiring terminal 223 are located the axial both ends of wiring terminal seat body 21 respectively. On the axial projection of the wire holder body 21, three first terminals 222 and three first terminals 222 are located at the outer periphery of the wire groove 241, and three second terminals 223 are located in the wire groove 241. The external connection portion 212 is provided with a blocking wall 214 at the outer periphery of the first terminal 222, and the blocking wall 214 is arranged in an arc-shaped extension.
A jointing clamp 23 is further arranged at the first wiring end 222, the jointing clamp 23 is provided with a connecting hole which is used for being connected and matched with the first wiring end 222, and a U-shaped clamping part 232 is further arranged. Three mounting portions 26 are further provided in the wiring groove 241, the three mounting portions 26 are uniformly distributed in the axial direction, and the mounting portions 26 are located on one side in the circumferential direction of the second terminal 223.
Referring to fig. 9 and 10, a liquid cooling flow passage is provided on the outer wall of the casing 1, the liquid cooling flow passage includes a motor cooling tank 139 and a control cooling tank 132, the motor cooling tank 139 is located on the outer wall of the motor installation cavity 121, the control cooling tank 132 is located on the outer wall of the control installation cavity 122, and heat conduction columns are respectively provided in the motor cooling tank 139 and the control cooling tank 132, thereby increasing the heat conduction area, a plurality of interval cooling tanks 133 are provided in the partition wall 11, and the plurality of interval cooling tanks 133 are distributed in the circumferential direction. The interval cooling groove 133 is provided with an opening at the outer wall while remaining closed in the partition wall 11, the interval cooling groove 133 is located between the motor cooling groove 139 and the control cooling groove 132, and the outer end portion of the interval cooling groove 133, the outer end portion of the motor cooling groove 139, and the outer end portion of the control cooling groove 132 communicate.
The plurality of spaced cooling grooves 133 extend toward the bearing 17, respectively, and the first terminal 222 and the fixing hole 114 are required to be eliminated, so that the outer end portions of the spaced cooling grooves 133 have a circumferential length greater than that of the inner end portions of the spaced cooling grooves 133 due to the different depths of the spaced cooling grooves 133. The outer end of the interval cooling groove 133 and the outer end of the liquid cooling runner are all arranged in an open mode, the shell cover 14 covers the outer wall of the shell 1, the shell cover 14 is located on the outer sides of the interval cooling groove 133 and the liquid cooling runner, and then the outer end of the interval cooling groove 133, the outer end of the motor cooling groove 139 and the outer end of the control cooling groove 132 are mutually communicated, and the outer end of the interval cooling groove 132 is provided with mounting grooves 1321 at two sides.
The guide baffle 134 is arranged in the interval cooling groove 133, the guide baffle 134 is a straight piece and extends from outside to inside, the outer end part of the guide baffle 134 is provided with a guide groove 1343, the guide groove 1343 is close to the outer end part of the interval cooling groove 133, the guide baffle 134 is provided with clamping protrusions 1341 at two sides of the guide groove 1343, the clamping positions are positioned at the clamping protrusions 1341, the clamping positions of the clamping protrusions 1341 are positioned in the mounting groove to realize limit fit, a certain circulation space is reserved between the inner end part 1344 of the guide baffle 134 and the inner end part of the interval cooling groove 133, the guide baffle is provided with a through hole 1342 in the middle part, the through hole 1342 is used for circulating cooling liquid, and the cooling liquid can be comprehensively formed into a flow direction by the guide baffle 134, the through hole 1342 and the guide groove 1343 when flowing through the outer end part of the interval cooling groove 133, so that the cooling liquid flows into the inner end part of the interval cooling groove 133, and the heat dissipation efficiency is improved.
The outer wall of the machine shell 1 is provided with a runner opening 135, the runner opening 135 is close to the control installation cavity 122, an interface module 137 is connected to the outside of the runner opening 135, the interface module 137 is used for being connected with a liquid cooling circulation system, the outer wall of the machine shell 1 is provided with an interface 136, the interface 136 is located on one side of the motor installation cavity 121, and the interface 136 and the runner opening 135 are both communicated with the liquid cooling runner.
Referring to fig. 11 in combination with fig. 20, the drive assembly further includes a chamber cover 25 and a resolver 27, the resolver 27 is disposed in the mounting hole 111, the resolver 27 is located on a side of the bearing 17 near the control mounting chamber 122, the rotation shaft of the rotor 16 is connected to the resolver 27, and the resolver 27 is electrically connected to the motor control device 3. The chamber cover 25 covers the mounting hole 111 and is connected with the partition wall 11, a baffle plate is arranged in the middle of the chamber cover 25, the baffle plate is of a detachable design, the chamber cover 25 covers the rotary transformer 27 on one side of the control mounting cavity 122, the chamber cover 25 is provided with an interface groove, a signal connection terminal 252 is arranged in the interface groove, a connection interface of the rotary transformer 27 is connected with the signal connection terminal 252, a signal connection terminal 435 is arranged at a position corresponding to the main circuit board 43, the signal connection terminal 252 is positioned between a single-phase connection end and a positive and negative electrode connection end, and the signal connection terminal 252 is conveniently connected with the signal connection terminal 435.
And three first terminals 222 pass through the wire holes 113, respectively, after the three-phase wire holder 2 is mounted to the partition wall 11. The middle ring 221 of the three-phase wire holder 2 is sleeved outside the positioning annular wall 117 and outside the chamber cover 25, and is sleeved outside the rotary transformer 27, namely the rotary transformer 27 is positioned in the wire connecting groove 241, and the magnetic ring 28 is positioned outside the rotary transformer 27.
The three-phase wire holder 2 is then mounted to the mounting hole 111 at a side close to the control mounting chamber 122, and is connected to the fixing hole 119 by screws through the mounting portion 26 and the positioning hole 251 of the chamber cover 25. The three first terminals 222 are located at the periphery of the bearing 17 in a relatively dispersed manner, the three second terminals 223 are located at the periphery of the bearing 17 in a relatively concentrated manner, the three single-phase terminals 22 are connected between the motor control device 3 and the stator 15, and the three single-phase terminals 22, the three wiring holes 113 and the three threading holes 114 are located between the bearing 17 and the stator 15 in an axial projection of the bearing 17.
The stator 15 is provided with a winding, the winding is provided with a lead wire and a terminal, the terminal of the stator is positioned at the second avoidance groove 115 and is connected with the first wiring part 222, and pouring sealant 19 is filled among the installation annular wall 112, the partition wall and the inner wall of the shell, so that the pouring sealant 19 covers the three first wiring parts 222, the three wiring holes, the three fixing holes, the terminal of the stator and the end part of the winding, which is close to the partition wall, and then, besides the protection performance and the waterproof performance are improved, certain waste heat conduction and the device fixing can be realized.
Referring to fig. 12 to 13, the three-phase wire holder 2 is disposed in the middle of the motor control device 3, the motor control device 3 includes a circuit board assembly, a plurality of capacitors 45, a plurality of power tubes 34, a pressing member 32, a positioning frame 33, and a mounting case 31, the circuit board assembly may employ a conventional laminated copper clad circuit or the like, while in the present embodiment, the circuit board assembly employs a laminated busbar assembly 4, the laminated busbar assembly 4 includes a main circuit board 43, a positive connection board 41, a negative connection board 42, and a three-phase connection board assembly 44, and copper clad circuits, circuit elements, and pads are disposed on the main circuit board 43, and constitute a control circuit.
Referring to fig. 14 and 15, and referring to fig. 5, the motor control device 3 is disposed in the motor mounting cavity 122, the inner wall of the control mounting cavity 122 is provided with a plurality of heat conduction planes 125, the heat conduction planes 125 are arranged in a straight plane, the plurality of heat conduction planes 125 are sequentially connected along the circumferential direction, an avoidance groove 126 is disposed between two adjacent heat conduction planes 125, the inner side of the inner wall of the control mounting cavity 122 is provided with a ring wall 124, a success rate mounting groove 123 is enclosed between the ring wall 124 and the inner wall of the control mounting cavity 122, and the power mounting groove 123 extends in a ring shape.
The positioning frame 33 includes an annular substrate 331 and a plurality of spacer bars 333, the annular substrate 331 is arranged in a plane and extends along the annular shape, the annular substrate 331 is uniformly provided with protruding points 332 along the circumferential direction inside, the plurality of spacer bars 333 are all arranged on the annular substrate 331 along the axial direction, the plurality of spacer bars 333 are distributed along the circumferential direction, the annular substrate 331 is adjacent to the spacer wall 11, the spacer bars 333 are located on one side opposite to the spacer wall 11, the spacer bars 333 are arranged in a T-shaped manner along the radial cross section, and the positions of the spacer bars 333 and the protruding points 332 are located on the same radial plane.
The annularly arranged pressing piece 32 includes an annular base 321 and a plurality of pressing portions 322, the annular base 321 is arranged in a sheet form and extends in an axial direction and extends annularly in a circumferential direction, the pressing portions 322 are arranged in a sheet form, and the plurality of pressing portions 322 are disposed on the annular base 321 in a circumferentially distributed manner. The pressing portion 322 includes a fixing portion, an abutting portion and a free portion, the fixing portion is connected with the annular base 321, the abutting portion extends from the fixing portion toward the outer side of the annular base 321, the free portion is located at the outer end portion of the abutting portion, the abutting portion is located between the fixing portion and the free portion, the abutting portion is arranged in an arc shape, the abutting portion protrudes toward the outer side of the annular base 321, the abutting portion protrudes toward the inner wall of the casing 1 in the radial direction, and then the fixing portion and the free portion are located on one side of the inner side of the abutting portion. A first groove body 323 is arranged between two adjacent pressing parts 322, the first groove body 323 extends along the axial direction, the two adjacent pressing parts 322 form a device pressing group, one device pressing group is used for pressing one power tube 34, a second groove body 324 is arranged between the two adjacent device pressing groups, the second groove body 324 extends along the axial direction, and the axial length of the second groove body 324 is greater than that of the first groove body 323.
The positioning frame 33, the power tubes 34 and the pressing piece 32 are all arranged in the power installation groove 123, the annular substrate 331 of the positioning frame 33 is arranged at the bottom of the power installation groove 123, the power tubes 34 are arranged along the circumference of the control installation cavity 122, the packaging of the power tubes 34 is connected with the heat conduction plane 125, the heat conduction sheet 35 is arranged between the packaging of the power tubes 34 and the heat conduction plane 125, the heat conduction sheet 35 can be made of silica gel or ceramic, one spacing bar 333 is arranged between two adjacent power tubes 34, namely, the power tubes 34 can be limited by the spacing bars 333 on two sides, the pressing piece 322 is arranged on one side close to the annular wall 124, the pressing piece 322 is abutted between the annular wall 124 and the power tubes 34, and an outward elastic force is applied to the power tubes 34, and the second groove 324 is in limiting fit with the protruding points 332. The main circuit board 43 is arranged in a circular shape, and pins of the power tube 34 pass through the outer periphery of the main circuit board 43 and are soldered.
Referring to fig. 16 and 17, the installation housing 31 is provided in a bottomed cylindrical shape, the installation housing 31 is provided with an inner annular wall 312 in the middle, the inner annular wall 312 encloses a third avoidance hole 3121, the installation housing 31 is provided with an outer annular wall 311 at the outer periphery of the inner annular wall 312, an annular cylinder bottom 313 is provided between the outer annular wall 311 and the inner annular wall 312, an installation receiving cavity is enclosed between the outer annular wall 311, the inner annular wall 312 and the cylinder bottom 313, the installation housing 31 is provided with a positioning column assembly in the axial direction of the cylinder bottom, the positioning column assembly comprises a plurality of first positioning columns 314 and a plurality of second positioning columns 315, the plurality of first positioning columns 314 are distributed in the circumferential direction, the plurality of second positioning columns 315 are all located at the outer side of the plurality of first positioning columns 314, the diameter of the first positioning columns 314 is smaller than the diameter of the second positioning columns 315, the plurality of first positioning columns 314 and the plurality of second positioning columns 315 respectively pass through the positive electrode connection plate 41, the negative electrode connection plate 42 and the connection plate assembly 44,
A capacitance positioning cavity is defined between two adjacent first positioning columns 314 and two adjacent second positioning columns 315, a radial connecting line between one first positioning column 314 and two adjacent first second positioning columns 315 passes through the axle center of the installation shell 31, a plurality of first positioning columns 314 and a plurality of second positioning columns 315 are arranged in a radial manner, and a capacitance 45 is positioned in the capacitance positioning cavity, namely between the two first positioning columns 314 and the two second positioning columns 315.
The installation housing 31 is provided with three connection fixing tables 317 at the top of the inner annular wall 312 and in the third avoidance hole 3121, the three connection fixing tables 317 are uniformly arranged in the circumferential direction, and a receiving step 316 is provided at the outer side of each connection fixing table 317 for receiving the positive electrode connection plate 41 and cooperating with the receiving table 418, the connection fixing tables 317 are provided with a positive electrode connection position 319 and a negative electrode connection position 318, the positive electrode connection position 319 and the negative electrode connection position 318 are respectively provided with connection nuts, the two connection nuts are arranged side by side, and a fixing hole 3171 is provided at one side of the connection fixing table 317 at the positive electrode connection position 319 or the negative electrode connection position 318.
The mounting housing 31 is provided with a protruding edge 3111 protruding outwards at the top of the outer annular wall 311, the protruding edge 3111 extends annularly, a carrying step 3112 is provided between the protruding edge 3111 and the outer annular wall 311, the carrying step 3112 is used for carrying the positive connection plate 41, and a plurality of protruding points 3113 are provided on the carrying step 3112 along the circumferential direction.
The positive electrode connecting plate 41 is in a cylindrical shape with a bottom, the whole positive electrode connecting plate 41 is made of metal, the positive electrode connecting plate 41 is provided with a first avoidance hole 410 in the middle, the positive electrode connecting plate 41 is provided with an inner ring wall 413 at the periphery of the first avoidance hole 410, the positive electrode connecting plate 41 is provided with an outer ring wall 412 at the periphery of the inner ring wall 413, the positive electrode connecting plate 41 is provided with a bottom annular wall 414 between the inner ring wall 413 and the outer ring wall 412, the bottom annular wall 414 is connected between the inner ring wall 413 and the outer ring wall 412, an annular device accommodating cavity is formed between the bottom annular wall 414, the outer ring wall 412 and the inner ring wall 413 in a surrounding mode, the device accommodating cavity is used for accommodating a plurality of capacitors 45, the capacitors 45 are distributed circumferentially, and the positive electrode connecting plate 41 is arranged in an annular pot shape. The positive electrode connection plate 41 is provided with a radially extending flange 4121 at the outer end of the outer ring wall 412, the flange 4121 extends in the circumferential direction, a plurality of positive electrode pins 411 are circumferentially arranged on the flange 4121, the positive electrode pins 411 extend in the axial direction, and the outer ring wall 412 is provided with a limiting groove 4122 between two connected positive electrode pins 411, and the plurality of limiting grooves 4122 are uniformly distributed in the circumferential direction. The bottom annular wall 414 is provided with a plurality of first electrical contacts 415, the plurality of first electrical contacts 415 being circumferentially distributed, the first electrical contacts being formed by recessing the bottom annular wall 414, the first electrical contacts 415 being connected to the positive pole of the capacitor 45. The bottom annular wall 414 is further provided with a plurality of first positioning holes 416 and second positioning holes 417 in a penetrating manner, the first positioning holes 416 are uniformly distributed along the circumferential direction, the second positioning holes 417 are uniformly distributed along the circumferential direction, the first positioning holes 416 are located at the inner side of the first electrical contact 415, the second positioning holes 417 are located at the outer side of the first electrical contact 415, the first positioning columns 314 penetrate through the first positioning holes 416, and the second positioning columns 315 penetrate through the second positioning holes 417.
The end portion of the inner ring wall 413, which is close to the negative electrode connecting plate 42, is provided with a bearing table 418, the bearing table 418 is used for bearing the negative electrode connecting plate 42, the positive electrode connecting plate 41 is provided with a positive electrode connecting end 419 at the inner edge of the bearing table 418, the positive electrode connecting end 419 is arranged in a folded piece mode, the positive electrode connecting end 419 extends along the radial direction after extending along the axial direction, and the positive electrode connecting end 419 is provided with a connecting hole in the first avoidance hole 410.
The negative electrode connecting plate 42 is circular metal plate setting, and negative electrode connecting plate 42 is provided with a plurality of negative electrode pins 421 along circumference at the outward flange, and negative electrode pins 421 extend along the axial, and negative electrode connecting plate 42 is provided with a plurality of first pins at the outward flange and dodges the groove 422, and a plurality of first pins dodges the groove 422 and evenly arrange along the axial, and has a positive pole between two adjacent negative electrode pins 421 and dodges the groove 422, realizes crisscross distribution then. The negative electrode connecting plate 42 is provided with a plurality of second electric contacts 425, a plurality of second electric contacts 425 distribute along circumference, the second electric contacts 425 are formed by the grooving of the negative electrode connecting plate 42, the second electric contacts 425 are connected with the negative electrode of the capacitor 45, the negative electrode connecting plate 42 is also penetrated and provided with a plurality of first locating holes 424 and second locating holes 423, a plurality of first locating holes 424 evenly distribute along circumference, a plurality of second locating holes 423 evenly respectively along circumference, a plurality of first locating holes 424 are located the inboard of the second electric contacts 425, a plurality of second locating holes 423 are located the outside of the second electric contacts 425, the first locating column 314 penetrates through the first locating holes 424, and the second locating column 315 penetrates through the second locating holes 423. The negative electrode connecting plate 42 is provided with a second avoidance hole 426 in the middle part, the first avoidance hole 410 is communicated with the second avoidance hole 426, the negative electrode connecting plate 42 is provided with a negative electrode connecting end 427 at the inner edge of the second avoidance hole 426, the negative electrode connecting end 427 is arranged in a folded piece manner, the negative electrode connecting end 427 extends along the radial direction after extending along the axial direction, and the negative electrode connecting end 427 is provided with a connecting hole in the second avoidance hole 426.
The three-phase connection board assembly 44 includes three single-phase connection boards 441, the setting of the arched metal plate of three single-phase connection boards 441, of course, can also be in fan-shaped arrangement, single-phase connection boards 441 are provided with a plurality of single-phase pins 442 along the circumference in the outward flange, single-phase pins 442 extend along the axial, single-phase connection boards 441 are still provided with anodal and cathodal and dodge groove 443, two single-phase pins 442, anodal dodge groove 443 and a cathodal and dodge groove 444 are arranged in proper order along the circumference, single-phase connection boards 441 are provided with single-phase link 445 at the inward flange, single-phase link 445 is provided with the connecting hole, single-phase connection boards 441 are provided with two dodge grooves 447 and three locating hole 446, two dodge grooves 447 are located single-phase connection boards 441's inward flange, three locating hole 446 are distributed in the outside of dodging groove 447 along the circumference, three single-phase connection boards 441 are in the coplanarity tiling arrangement, then form a quasi-circular profile at the outward flange, and inside then form the wiring space.
When the laminated busbar assembly 4 and the plurality of capacitors 45 and the mounting case 31 are assembled, the positive electrode connection plate 41 is mounted into the mounting case 31, the plurality of capacitors 45 are mounted to the positive electrode connection plate 41, the negative electrode connection plate 42 is then disposed on the positive electrode connection plate 41, the device accommodating chamber and the capacitors 45 are covered, the negative electrode connection plate 42 is supported by the bearing step 3112, the protruding points 3113 are in a limit fit with the limit grooves 4122, and the capacitors 45 are connected between the positive electrode connection plate 41 and the negative electrode connection plate 42. Then three single-phase connecting plates 441 are arranged on the negative connecting plate 42, then the first positioning column 314 sequentially passes through the first positioning hole 416, the first positioning hole 424 and the avoidance groove 447, the second positioning column 315 sequentially passes through the second positioning hole 417, the second positioning hole 423 and the positioning hole 446, referring to fig. 18 and 19, finally, the main circuit board 43 is arranged on the three single-phase connecting plates 441, connecting holes are respectively arranged at positions corresponding to the first positioning column 314 and the second positioning column 315 of the main circuit board 43, and then lamination connection is completed through screws, namely, the main circuit board 43, the three-phase connecting plate assembly 44, the negative connecting plate 42, the capacitor 45 and the positive connecting plate 41 are sequentially laminated and connected, and three insulating layers 45 are arranged between the three insulating layers 45 and the single-phase connecting plate, insulating layers can also be arranged between the negative connecting plate 42 and the positive connecting plate 41, insulating layers can be arranged between the main circuit board 43 and the three-phase connecting plate assembly 44, positive pins 411 pass through the first pin avoidance groove 422 and the positive avoidance groove 443 and pass through and are connected with bonding pads of the main circuit board 43, and the negative pins 421 pass through the plurality of single-phase pin grooves 444 and pass through the plurality of single-phase pins 442 and are connected with the single-phase connecting plates 442 and the single-phase connecting plates 442. Of course, the positive electrode avoidance groove 443 and the negative electrode avoidance groove 444 may also be arranged as integrally communicated pin avoidance grooves, and then the positive electrode pin passes through the first pin avoidance groove and the second pin avoidance groove, and the negative electrode pin passes through the second pin avoidance groove. Of course, the laminated distribution positions of the three-phase connecting plate assembly, the negative electrode connecting plate and the positive electrode connecting plate can be adjusted, for example, the connecting plates which are arranged in a pot shape can also be the negative electrode connecting plates, and the positive electrode connecting plates are arranged above the pot-shaped negative electrode connecting plates, namely, the polarities of the positive electrode connecting plates 41 and the negative electrode connecting plates 42 in the scheme are exchanged.
Furthermore, the first avoidance hole 410, the second avoidance hole 426 and the third avoidance hole 3121 are arranged in an overlapping communication manner, the connection fixing table 317, the three positive electrode connection ends 419, the three negative electrode connection ends 427 and the three single-phase connection ends 445 are all located in the axial projection of the second avoidance hole 426 or the third avoidance hole 3121, the positive electrode connection ends 419 are located on the positive electrode connection position 319 and can be connected through screws, the negative electrode connection ends 427 are located on the negative electrode connection position 318 and can be connected through screws, the positive electrode connection ends 419, the negative electrode connection ends 427 and the single-phase connection ends 445 are sequentially distributed along the circumferential direction, the bent positive electrode connection ends 419 are also in limit fit with the connection fixing table 317 on the inner edge of the second avoidance hole 426, the bent negative electrode connection positions 318 are in limit fit with the connection fixing table 317, and the fixing holes 3171 located on one side of the negative electrode connection positions 318 are fixedly connected with the main circuit board. The motor control device further includes three hall elements 46, one hall element 46 being provided at one single-phase connection 445, the pins of the hall element 46 also being electrically connected to the main circuit board.
Referring to fig. 18 and 19, and referring to fig. 17 and 20, after the motor control device 3 of the above state is mounted in the control mounting chamber 122, the third escape hole 3121 is sleeved outside the middle ring portion 211 and the magnet ring 28, and the second terminal 223 is positioned opposite to the single-phase connection end 445, and then can be connected by a screw, and the second terminal 223 passes through the hall element 46. The installation shell 31 is installed in the annular wall 124 and is in limit fit with the annular wall, a temperature sensor and other monitoring sensors can be arranged in the motor installation cavity, and wiring of the sensors passes through the threading holes 114 and can be electrically connected with a motor control device. While the power tube 34 is located at the outer periphery of the main circuit board 43 and at the outer periphery of the mounting housing 31. In addition, the control cooling groove 132 is located at the outer periphery of the power tube 34, so that heat can be quickly conducted.
The main circuit board 43 is provided with a connection bit 431, a control circuit bit 432, a first welding bit 433 and a second welding bit 434, the control circuit bit 432, the first welding bit 433 and the second welding bit 434 are distributed to be in annular arrangement, the connection bit 431 is located in the middle of the main circuit board 43, the control circuit bit 432 is located at the periphery of the connection bit 431, the first welding bit 433 is located at the periphery of the control circuit bit 432, the second welding bit 434 is located at the periphery of the first welding bit 433, and the second welding bit 434 is located at the outermost periphery of the main circuit board 43. The positive connection end 419, the negative connection end 427 and the single-phase connection end 445 are all located in the axial projection of the connection position 431, and the main circuit board 43 is provided with through holes at positions corresponding to the positive connection end 419, the negative connection end 427 and the single-phase connection end 445, so that the positive connection end 419, the negative connection end 427 and the single-phase connection end 445 can pass through the corresponding through holes, and the single-phase connection end 445 needs to be electrically connected with the main circuit board 43, and the plurality of positive pins 411, the plurality of negative pins 421 and the plurality of single-phase pins 442 are electrically connected with the main circuit board 43 at the first welding position 433, and the plurality of power tubes 34 are arranged on the periphery of the main circuit board 43 and are electrically connected with the main circuit board 43 at the second welding position 434. The plurality of power tubes 34 are uniformly distributed along the same circumferential direction of the main circuit board 43, and the plurality of power tubes 34 are circumferentially arranged and are all located radially outside the three-phase connection board assembly 44, the negative electrode connection board 42, and the positive electrode connection board 41.
The plurality of positive electrode pins 411, the plurality of negative electrode pins 421 and the plurality of single-phase pins 442 are arranged along the same circumference of the main circuit board 43, and two adjacent single-phase pins 442 form a single-phase bridge arm pin group, and one single-phase bridge arm pin group, one positive electrode pin 411 and one negative electrode pin 421 are sequentially and circularly arranged along the circumference. The control circuit bit 432 is provided with a control circuit, a circuit is formed at the control circuit by copper coating, and the corresponding inverter circuit and required circuit elements are welded together, and the capacitor 45 is located in the axial projection of the control circuit bit 432.
Referring to fig. 9, the peripheral wall of the casing 1 at the control installation cavity 122 is provided with a wiring hole 138 penetrating in the radial direction, the drive assembly further includes a wiring assembly 5, the wiring assembly 5 includes a wiring sleeve 53, a positive wiring board 52 and a negative wiring board 51, the positive wiring board 52 and the negative wiring board 51 are arranged in a sheet shape, the internal wiring of the positive wiring board 52 includes a positive internal connection base 523 and three positive wiring portions 524, the three positive wiring portions 524 are connected at the outer periphery of the positive internal connection base 523, the three positive wiring portions 524 are uniformly distributed at the outer periphery of the positive internal connection base 523 in the circumferential direction, and the positive wiring portions 524 are provided with connection holes. The inner terminal of the negative electrode terminal plate 51 includes a negative electrode inner terminal portion 513 and three negative electrode terminal portions 514, the three negative electrode terminal portions 514 are connected to the outer periphery of the negative electrode inner terminal portion 513, the three negative electrode terminal portions 514 are uniformly distributed on the outer periphery of the negative electrode inner terminal portion 513 in the circumferential direction, and the negative electrode terminal portions 514 are provided with connection holes. The positive electrode wiring board 52 and the negative electrode wiring board 51 have external terminals, respectively, on the outer peripheral wall of the casing 1, a straight plate portion 521 is provided between the external terminal 522 and the positive electrode wiring portion 524 of the positive electrode wiring board 52, a straight plate portion 511 is provided between the external terminal 512 and the negative electrode wiring portion 514 of the negative electrode wiring board 51, and the straight plate portion 511 and the straight plate portion 522 pass through the wiring hole 138 in a side-by-side arrangement.
In addition, the positive electrode internal connection base 523 and the negative electrode internal connection base 513 are arranged on the main circuit board 43 in an overlapping manner along the axial direction of the casing 1, the negative electrode internal connection base 513 is located between the positive electrode internal connection base 523 and the motor control device, a first avoidance concave portion 525 is formed between the positive electrode internal connection base 523 and the positive electrode connection portion 524, the negative electrode internal connection base 513 is located in the first avoidance concave portion 525, three positive electrode connection ends 419 and three negative electrode connection ends 427 are all located on the same radial plane, and then, the operation is conveniently performed, one positive electrode connection end 524 is connected with one positive electrode connection end 419, and one negative electrode connection end 427 is connected with one negative electrode connection end 514. In order to improve the protection, the wiring sleeve 53 is covered on the positive electrode wiring board 52 and the negative electrode wiring board 51 by utilizing secondary injection molding, except that the external wiring terminal, the negative electrode wiring part and the positive electrode wiring part are all wrapped, and the wiring sleeve 53 is positioned in the control mounting cavity 122, and the wiring sleeve 53 is in interference fit with the wiring hole 138.
Of course, the positive electrode internal base portion 523 may be located between the negative electrode internal base portion 513 and the motor control device, and a second recess is formed between the negative electrode internal base portion 513 and the negative electrode wiring portion 514, and the positive electrode internal base portion 523 is located in the second recess, which can achieve the object of the present invention as well.
The junction block 5 further includes a junction box 55, the junction box 55 is connected to the outer peripheral wall of the casing 1 at the control installation cavity 122, the interior of the junction box 55 communicates with the control installation cavity 122 through a junction hole 138, and the external terminal of the positive electrode junction plate 52 and the external terminal of the negative electrode junction plate 51 extend into the interior of the junction box 55. The driving assembly is mounted on the vehicle in a state shown in fig. 18, so that the housing 1 has a housing top and a housing bottom in a vertical direction of the mounting orientation, and the wiring hole 138 is located between the housing top and the housing bottom in the vertical direction of the mounting orientation, so that the junction box 55 is also located between the housing top and the housing bottom, and is located at a lateral side of the junction box 55, which is beneficial to reducing the occupied space in the vertical direction. Preferably, the straight plate portion 511 and the straight plate portion 522 are led out at an acute angle or right angle of 45 degrees or the like to the vertical direction.
Compared with the motor in the prior art, the axial rear end of the existing motor is generally provided with a fixed structure or a heat dissipation structure, and the fixed structure or the heat dissipation structure is generally represented by a plurality of column structures, so that the space of the axial rear end is utilized, devices such as a motor control device, a capacitor and a power tube are arranged in a control installation cavity of the axial rear end, and a laminated busbar circuit arrangement, a wiring seat, an annular power tube and the like are adopted to optimize the connection structure of the axial rear end, so that the total space of a circuit device is reduced, the space of the axial rear end is effectively utilized, the axial dimension of the driving assembly and the axial dimension of the existing motor assembly are unchanged, the optimized wire outlet mode is utilized, the radial dimension in the vertical direction is unchanged, and the highly integrated driving assembly is realized.
Vehicle embodiment:
the vehicle comprises the driving assembly according to the scheme, the driving assembly can be integrated with the transmission or not integrated with the transmission, and the vehicle can be a new energy electric car, a new energy electric passenger car, a new energy electric truck, a new energy electric cleaning vehicle, a new energy electric rail vehicle, a new energy electric flying vehicle, a new energy electric shipping vehicle and the like.
From the above, through utilizing the space of the axial rear end of motor, utilize the interval setting of separating wall and the arrangement of bearing for the rotor rotationally sets up in the motor installation cavity, and motor controlling means then sets up in the control installation cavity, and utilize the setting of three single-phase terminal through separating wall, connect between motor controlling means and stator, and with the axial projection of three single-phase terminal homonymy bearing and stator, not only when connecting the wiring end of stator and single-phase terminal, i.e. when not installing the rotor, leave operating space between bearing and the stator, can conveniently connect the wiring end of stator and single-phase terminal, and set up motor controlling means in the position of the axial rear end of motor, so effectively reduce occupation space, improve space utilization, realize drive assembly high integration. Through the stable installation of installation annular wall to the bearing, improve the operating stability of motor, three single-phase terminal all are located the periphery of installation annular wall simultaneously, also be convenient for the wiring end installation location of stator. The first avoidance groove is utilized to provide positioning for the wiring terminal of the stator, and the layout space is optimized, so that the wiring convenience and reliability are improved. The fixed orifices are used for connecting and fixing the motor control device, and the wiring holes and the fixed orifices are positioned between the bearing and the stator, so that the disassembly and assembly operations can be conveniently carried out. The second avoidance groove can be used for placing the wires and the wiring terminals of the stator, so that the layout space is optimized.
In addition, because the stator has three-phase winding, so set up in the periphery of wiring pedestal through three single-phase terminal, then three single-phase terminal can be connected corresponding the wiring of stator, optimize wiring overall arrangement then to space such as bearing can be placed in the space between the three single-phase terminal, thereby improves structural layout compactness. The first wiring terminal and the second wiring terminal are respectively positioned on the outer inner side of the wiring groove, the first wiring terminal is distributed in a dispersed manner along the circumferential direction, so that avoidance of the bearing can be realized, the second wiring terminal is distributed in a compact manner along the circumferential direction, connection centralization of the motor control device can be realized, and the circuit layout utilization rate of the motor controller is improved. The middle ring part, the external connection part and the internal connection part are arranged and manufactured by secondary injection molding, so that the middle ring part, the external connection part and the internal connection part are wrapped outside the single-phase wiring terminal, the protection between the two wiring terminals is improved, the middle ring part can be used for realizing the installation and positioning of other devices, and the external connection part and the first wiring terminal are located at the outer axial side and the outer radial side of the middle ring part and extend outwards, so that a space can be avoided for a bearing or a rotary transformer, and the space utilization rate is improved. The retaining wall can provide certain positioning and limiting for the connecting wire, improves the connection stability and also plays a role in insulating the wiring terminal of the stator. The three-phase wiring seat can be installed and fixed in the driving assembly through the installation part, and the installation part is arranged on one side of the second wiring terminal, so that the assembly and the disassembly operations are convenient. Because the wire holder body can be provided with devices such as a rotary transformer, the magnetic ring is arranged on the periphery of the wire holder body, so that electromagnetic interference is reduced.
And filling the pouring sealant on the end face of the partition wall, which faces the motor mounting cavity, so that the pouring sealant is covered outside the first wiring part, and the first wiring part is used for being connected with the wiring end of the stator, so that the pouring sealing of the first wiring part and the wiring end of the stator is realized, the protection performance is effectively improved, and waste heat can be efficiently conducted to the partition wall. Through the stable installation of installation annular wall to the bearing, improve the running stability of motor, three single-phase terminal all are located the periphery of installation annular wall simultaneously, and the wiring end installation location of the stator of also being convenient for also makes the pouring sealant fill between the inner wall of installation annular wall, partition wall and casing accurately, makes the waste heat that the bearing produced also can pass through the pouring sealant conduction. The fixed orifices are used for connecting fixed motor controlling means, and the wiring hole is used for being passed by single-phase terminal to improve the isolation between motor installation cavity and the control installation cavity, dodge mutual interference. The second avoidance groove can be used for placing the wires and the wiring terminals of the stator, so that the layout space is optimized, and the pouring sealant is used for positioning the wiring terminals, the wires and the end parts of the windings of the stator.
Furthermore, the rotary transformer is connected with the rotor and can monitor the rotation state of the rotor, and the rotary transformer is positioned at one side close to the control installation cavity, so that the rotary transformer can be conveniently connected with the motor control device in a wiring way, the cavity cover can play a role of isolating the two cavities and can be conveniently connected by utilizing the interface groove, and the operation stability is improved.
In addition, the liquid cooling flow channel of the shell is communicated with the interval cooling groove of the partition wall, so that waste heat of the bearing and waste heat of other devices can be rapidly transferred from the partition wall to the shell, heat conduction efficiency is improved, and operation performance of the driving assembly is improved. The partition wall needs to provide support for the bearing and other devices, so that the partition wall needs a certain structural cavity, and the partition wall is distributed in a separated mode along the circumferential direction for the partition cooling groove, and the heat conduction efficiency of the partition wall is improved under the condition that the strength is not affected. The setting of water conservancy diversion baffle is used for the coolant liquid that will be located the outside to follow outer end drainage to the inner to through the mounting groove convenient installation location, the flow direction of coolant liquid is adjusted to the through-hole at the guiding gutter of reuse outer end and middle part, thereby makes the heat transfer more abundant and improves heat conductivility. The outer end of the interval cooling groove is larger in opening and the inner end of the interval cooling groove is smaller, so that the size of the flow channel is enlarged under the condition that the inner end structural strength of the partition wall is ensured, and the heat dissipation performance is improved. The gap cooling groove and the liquid cooling runner are relatively sealed through the covering of the shell cover, so that the groove body and the runner are conveniently machined, and the machining efficiency and the runner radiating efficiency are improved. The motor cooling tank mainly dissipates the waste heat generated by the motor, the control cooling tank mainly dissipates the waste heat generated by the motor control device, and the interval cooling tank is communicated between the motor cooling tank and the control cooling tank, so that the liquid cooling scheme of the integrated heat dissipation flow channel is utilized to improve the heat dissipation efficiency and the performance of the driving assembly. The partition wall needs to provide support for the bearing and other devices, so that the partition wall needs a certain structural cavity, and the partition wall is distributed in a separated mode along the circumferential direction for the partition cooling groove, and the heat conduction efficiency of the partition wall is improved under the condition that the strength is not affected. The flow guide baffle is used for guiding the cooling liquid positioned at the outer side from the outer end to the inner end, so that heat exchange is more sufficient, and the heat conducting performance is improved.
And a plurality of power tubes are circumferentially arranged and are connected with the inner wall of the mounting cavity, and the motor cooling tank and the control cooling tank which are mutually communicated are matched, so that waste heat of circumferentially distributed power tubes can be efficiently conducted to the control cooling tank and the motor cooling tank, then, integrated liquid cooling heat dissipation is realized, heat dissipation efficiency is improved, meanwhile, the inner peripheral wall is utilized as a heat conductor, the device layout of the motor controller can be effectively optimized, the motor controller does not need to be additionally provided with a heat conducting structure, and the highly integrated design of devices is facilitated. Because the power tube is conducted in a time-sharing way in actual operation, the distributed arrangement can conduct heat in a time-sharing way at different positions, and therefore heat conduction efficiency is further improved. Through the closely adjacency of the encapsulation of heat conduction plane and power tube, can increase heat conduction area and increase heat conduction efficiency, and dodge the groove and be convenient for not only to the processing of heat conduction plane, and can form certain dodge the space for between the power tube. The heat conducting fin can adopt heat conducting silica gel or a heat conducting ceramic plate, and the heat conducting efficiency between the packaging and the heat conducting plane of the power tube is increased through the heat conducting fin. The power tube can be positioned and limited to a certain extent through the power mounting groove. Through setting up positioning frame in the power mounting groove, utilize positioning frame to carry out spacingly to the power tube, especially drive assembly needs overcome harsh vibrations service environment, so effectively improve the installation stability of power tube, then improve the performance stability of drive assembly.
Furthermore, the three single-phase connecting plates are in coplanar tiling arrangement to form a similar circle, after lamination arrangement, each circuit board is overlapped, each pin at the outer edge of the circuit board is respectively connected with the main circuit board, corresponding circuit connection is realized, the lamination structure is compact, the axial size is reduced, lamination assembly is simple and efficient, and the assembly efficiency is improved. The arrangement of pins in the same circumferential direction is advantageous for optimizing the wiring layout and the circuit layout of the main circuit board. Through the setting of dodging the groove, not only make the pin can arrange in same circumference better, and also can utilize dodging the groove and carry out corresponding spacing. The middle part distribution is provided with dodges the hole to and form the connection space at the middle part through arched single-phase connecting plate, and positive pole link, negative pole link and three single-phase link all are arranged in the axial projection that the hole was dodged to the second then, make positive pole link, negative pole link and single-phase link middle part concentrate and arrange convenient connection operation, and pin periphery circumference is arranged, can effectively optimize circuit wiring overall arrangement.
In addition, be the cylindric setting of bottoming through the anodal connecting plate to set up a plurality of electric capacity in it and realize effectively fixing a position in succession, the lid that again cooperates the negative pole connecting plate closes the location, improves good support for the stable connection of electric capacity, and the lamination that main circuit board, negative pole connecting plate, a plurality of electric capacity and anodal connecting plate are in proper order arranges, not only lamination compact structure reduces axial dimension, and lamination assembly is simple and easy high-efficient, improves assembly efficiency. The first hole of dodging is used for installing location and the placing of wiring end, then holds the chamber through annular device and places a plurality of electric capacities, makes a plurality of electric capacities be circumference distribution, and provides good support location for the electric capacity. The two ends of the capacitor are electrically connected through the electric contacts arranged along the axial direction, so that good electric connection stability can be provided for the capacitor. The negative electrode connecting plate is stably arranged on the bearing table, and the positive electrode connecting end and the negative electrode connecting end are both positioned in the second avoidance hole, so that the wiring terminals are arranged in a concentrated mode, the layout is optimized, and the connecting operation efficiency is improved. The main circuit board, the positive electrode connecting plate, the negative electrode connecting plate and even the motor control device are stably supported and fixed through the installation shell and the positioning column assembly. The third avoidance hole of the mounting shell can be used for assembling and positioning on other equipment, and a connection fixing table is used for providing stable connection support for positive electrode connection and negative electrode connection. The locating columns not only can provide support and location for the main circuit board, the positive electrode connecting plate and the negative electrode connecting plate, but also form a space for locating the capacitor between the four locating columns, so that stable support is provided for connection of the capacitor, and stability of the motor control device is guaranteed. Because the electric capacity is circumference and distributes, so can laminate the direction of arranging of location electric capacity under the radial arrangement of first reference column and second reference column, further fix a position electric capacity, improve its stability.
And when the plurality of power tubes which are annularly arranged are pressed through the annular base part and the pressing parts distributed along the circumferential direction, the plurality of power tubes can be pressed at the same time by the preset position of the pressing part, and then the simple assembly and the quick positioning are realized. The pressing piece of the sheet-shaped component is simpler to manufacture and mold, and the sheet-shaped assembly and installation positioning are simpler. The power tube can be provided with stable pressure by the overhanging and arc-shaped abutting parts. The two adjacent pressing parts form a device pressing group for pressing one power tube, the first groove body enables the two pressing parts to keep the same pressing force, the second groove body separates the device pressing groups, the device pressing groups not only have larger offset space, but also are matched with the annular base part to enable the device pressing groups to be capable of better pressing the power tube.
Furthermore, through connecting position, control circuit position, first welding position and second welding position by the middle part outwards arranging in proper order for control circuit position, first welding position and second welding position are annular respectively and arrange, and each pin of outward flange is respectively with main circuit board, realizes corresponding circuit connection then, and the link at middle part is concentrated and is arranged, and the control circuit position at middle part has relatively great arrangement space, utilizes annular circuit layout, improves circuit layout and drive assembly's structure cooperation degree.
In addition, the positive electrode wiring board and the negative electrode wiring board penetrate through the peripheral wall in the radial direction to be led out, so that the space in the horizontal direction is fully utilized, and the space occupation in the vertical direction or the axial direction is reduced. The flaky wiring board is convenient to install in a positioning mode, and the axial space is further convenient to layout. The arrangement of the three positive electrode connecting ends and the three negative electrode connecting ends is beneficial to the layout of an annular circuit of the motor control device, so that the wiring board is also provided with three wiring parts in a matched mode and corresponding to the wiring parts in the circumferential direction, the wiring board is matched with the bearing connection through the inscribed base part, and the wiring board is stably supported and fixed by utilizing the triangular positioning fixation. The compact degree of the structural arrangement is improved by the arrangement of the lamination, and in order to solve the interference problem generated after the arrangement of the lamination, the positive electrode wiring board and the negative electrode wiring board are arranged and matched in a lamination way without interference by the arrangement of the avoidance concave parts. Through the insulating arrangement of the wire sleeve, the protection performance and the safety of the wiring board are improved, and the wire box is arranged on the radial peripheral wall, so that the positive electrode and the negative electrode of the battery can be conveniently connected without opening a motor installation cavity to connect. The arrangement of the wire outlet directions of the positive electrode wiring board and the negative electrode wiring board is based on the installation direction of the driving assembly, so that in order to shorten the size of the driving assembly, vehicles have more space in the vertical direction, and the wiring holes are positioned between the top of the machine shell and the bottom of the machine shell, and the positive electrode wiring board and the negative electrode wiring board are inclined to the wire outlet in the vertical direction.

Claims (8)

1. Three-phase connection terminal, its characterized in that includes:
The wire holder body extends in a cylindrical shape,
The three single-phase binding posts are arranged along the axial direction of the wire holder body, the three single-phase binding posts are arranged on the periphery of the wire holder body, and the two axial ends of the wire holder body are respectively provided with a first wiring terminal and a second wiring terminal;
A wiring groove is formed in the wiring seat body;
on the axial projection of the wire holder body, the first wire terminal is positioned at the periphery of the wire connecting groove, and the second wire terminal is positioned in the wire connecting groove;
The wiring seat body comprises a middle ring part, an external connection part and an internal connection part, wherein the middle ring part is annularly arranged and surrounds the wiring groove, the internal connection part extends from the middle ring part towards the inside of the wiring groove, and the external connection part extends from the middle ring part towards the outside of the wiring groove;
The single-phase wiring terminal passes through the middle ring part, the first wiring terminal is positioned at the external connection part, and the second wiring terminal is positioned at the internal connection part.
2. The three-phase wire holder according to claim 1, wherein:
the external connection part and the first terminal are both positioned on the axial outer side of the middle ring part.
3. The three-phase wire holder according to claim 1, wherein:
the three single-phase binding posts are connected with the middle ring part, the external connection part and the internal connection part through a secondary injection molding process.
4. The three-phase wire holder according to claim 1, wherein:
The external connection part is provided with a blocking wall at the periphery of the first wiring terminal.
5. The three-phase wire holder according to claim 1, wherein:
and a mounting part is further arranged in the wiring groove and is positioned on one side of the second wiring terminal.
6. The three-phase wire holder according to any one of claims 1 to 5, wherein:
and a magnetic ring is further arranged on the periphery of the wire holder body.
7. A drive assembly comprising a three-phase wire holder according to any one of claims 1 to 6.
8. A vehicle, characterized in that, the vehicle comprising the drive assembly of claim 7.
CN201911247025.0A 2019-12-06 2019-12-06 Three-phase terminal block, drive assembly and vehicle Active CN110912326B (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
CN201911247025.0A CN110912326B (en) 2019-12-06 2019-12-06 Three-phase terminal block, drive assembly and vehicle
EP22217193.6A EP4181362A1 (en) 2019-12-06 2020-11-16 Motor controller with capacitors surrounded, drive assembly and vehicle
EP22217189.4A EP4181361A1 (en) 2019-12-06 2020-11-16 Drive assembly with motor controller and vehicle including the same
EP22217191.0A EP4180257A1 (en) 2019-12-06 2020-11-16 Laminated busbar assembly, motor controller, drive assembly and vehicle
EP20895432.1A EP4071979B1 (en) 2019-12-06 2020-11-16 Laminated busbar assembly, motor controller, drive assembly and vehicle
JP2022532750A JP7443522B2 (en) 2019-12-06 2020-11-16 Drive assembly and transportation
PCT/CN2020/128919 WO2021109843A1 (en) 2019-12-06 2020-11-16 Laminated busbar assembly, electric motor control device, drive assembly and vehicle
EP22217195.1A EP4181364A1 (en) 2019-12-06 2020-11-16 Motor controller with annular circuit layout, drive assembly and vehicle
EP22217194.4A EP4181363A1 (en) 2019-12-06 2020-11-16 Three-phase terminal block, drive assembly and vehicle
US17/832,857 US12261506B2 (en) 2019-12-06 2022-06-06 Laminated busbar assembly, motor controller, drive assembly and vehicle
US17/832,845 US12273010B2 (en) 2019-12-06 2022-06-06 Motor controller with capacitors surrounded, drive assembly and vehicle
US17/832,758 US12261504B2 (en) 2019-12-06 2022-06-06 Drive assembly with annularly arranged power transistors and vehicle including the same
US17/832,790 US12261505B2 (en) 2019-12-06 2022-06-06 Drive assembly with motor controller and vehicle including the same
US17/832,881 US12244208B2 (en) 2019-12-06 2022-06-06 Three-phase terminal block, drive assembly and vehicle
US17/832,935 US12323028B2 (en) 2019-12-06 2022-06-06 Motor controller with annular circuit layout, drive assembly and vehicle
JP2023019499A JP7427817B2 (en) 2019-12-06 2023-02-10 Motor controls, drive assemblies, and transportation
JP2023019508A JP7427818B2 (en) 2019-12-06 2023-02-10 Motor controls, drive assemblies, and transportation
JP2023019485A JP7506778B2 (en) 2019-12-06 2023-02-10 Drive Assembly and Transportation
JP2023019488A JP7427816B2 (en) 2019-12-06 2023-02-10 Laminated busbar units, motor controls, drive assemblies, and transportation
JP2023019504A JP7506779B2 (en) 2019-12-06 2023-02-10 3-phase terminal block, drive assembly, and transportation

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CN201911247025.0A CN110912326B (en) 2019-12-06 2019-12-06 Three-phase terminal block, drive assembly and vehicle

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EP4071979B1 (en) * 2019-12-06 2024-02-28 Zhuhai Enpower Electric Co., Ltd. Laminated busbar assembly, motor controller, drive assembly and vehicle
KR102872589B1 (en) 2022-02-16 2025-10-17 주하이 엔파워 일렉트릭 컴퍼니 리미티드 Stator assemblies, motors, powertrains and transportation

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