CN109698898A - Driver, camera module and electronic equipment - Google Patents
Driver, camera module and electronic equipment Download PDFInfo
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- CN109698898A CN109698898A CN201910059080.0A CN201910059080A CN109698898A CN 109698898 A CN109698898 A CN 109698898A CN 201910059080 A CN201910059080 A CN 201910059080A CN 109698898 A CN109698898 A CN 109698898A
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- Prior art keywords
- support plate
- driver
- camera module
- ball
- marmem
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- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 12
- 238000003384 imaging method Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 208000018672 Dilatation Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Studio Devices (AREA)
Abstract
本发明提供一种驱动器，包括：滑动装置，所述滑动装置上设有滑动安装的载板(3)，所述载板(3)用于搭载待移动件；形状记忆合金(2)，所述形状记忆合金(2)通入电流，所述形状记忆合金(2)伸缩变形驱动所述载板(3)沿所述滑动装置移动。本发明的驱动器，采用先进的形状记忆合金驱动技术，解决了现有的磁石线圈或微型马达高能耗、低精度的问题，实现了低能耗、高精度的动能驱动；采用滑动性能优越的滚珠滑轨，进一步降低摩擦阻力，提高移动精度，又克服了常规滑动机构摩擦碎屑造成成像异常的问题。
The invention provides a driver, comprising: a sliding device, on which is provided a slidingly mounted carrier plate (3), the carrier plate (3) is used for carrying a piece to be moved; a shape memory alloy (2), the The shape memory alloy (2) is supplied with electric current, and the shape memory alloy (2) is stretched and deformed to drive the carrier plate (3) to move along the sliding device. The driver of the invention adopts the advanced shape memory alloy driving technology, solves the problems of high energy consumption and low precision of the existing magnet coils or micro motors, and realizes the kinetic energy driving with low energy consumption and high precision; Rails, further reduce frictional resistance, improve moving accuracy, and overcome the problem of abnormal imaging caused by friction debris in conventional sliding mechanisms.
Description
Technical field
The invention belongs to technical field of electronic products, and in particular to a kind of driver, camera module and electronic equipment.
Background technique
In electronic product camera application at present, from single camera to dual camera, three cameras, four cameras and future
Matrix form camera, camera sensing device will become the larger a part of cost of mobile phone, and in these multi-cams, although
With different characteristics, but only according to different scene switching to different camera lenses, the utilization rate of sensitive chip is non-in camera
It is often low.
It is the important channel for reducing chip cost that a plurality of lenses, which share sensitive chip,.Wherein the technology of most critical is photosensitive core
Switching of the piece between different camera lenses, during this switching existing technology mostly using magnetite coil or micro motor as
Driving, this driving method power consumption is high, and precision is low；Limit mobile device frequently rubs and can generate clast, to cause to incude
The failures such as chip imaging exception.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to magnetite coil in the prior art or micro motor high energy consumptions, low essence
The problem of spending provides a kind of driver, camera module and electronic equipment.
To solve the above-mentioned problems, the present invention provides a kind of driver, comprising:
Carriage, carriage are equipped with the support plate being slidably installed, and support plate is for carrying part to be moved；
Marmem, marmem are passed through electric current, and marmem dilatation drives support plate along sliding
Device is mobile.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, carriage includes ball slide rail, and support plate is arranged on ball slide rail；Support plate is moved along ball slide rail.
Preferably, marmem is that shape-memory alloy wire occurs after shape-memory alloy wire is passed through electric current heating
Axial shrinkage, current value size are directly proportional to contracted length.
Preferably, there are two marmems, support plate is separately positioned on along the both ends of carriage moving direction.
Preferably, marmem one end is connect with support plate, and the other end is fixed.
Preferably, driver further includes the sensing device for detecting support plate position.
Preferably, sensing device is arranged on support plate.
Preferably, sensing device includes Hall sensor.
Preferably, ball slide rail includes spaced non magnetic ball and magnetic ball, Hall sensor induced magnetism
The magnetism that ball generates, detects the shift position of support plate.
Preferably, non magnetic ball and magnetic ball are arranged according to the proportional spacing of 4:1.
Preferably, the non magnetic ball includes ceramic balls, and/or magnetic ball includes magnetic metal ball.
A kind of camera module, using above-mentioned driver.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, camera module further include:
At least two lens group；At least two lens group is arranged along the extending direction of carriage；
Photosensitive element, photosensitive element are mounted on support plate, and are moved with support plate along carriage, and different camera lenses is switched
Group, and the light of corresponding lens group light transmission is received, carry out photosensitive imaging.
Preferably, the position of at least two lens group is passed through specific currents rear-guard dynamic load with marmem
The mobile position of plate is corresponding.
Preferably, at least two lens group is fixed in camera lens mounting assembly, and camera lens mounting assembly and sliding fill
Optical filter is equipped between setting, light exposes to photosensitive element after successively penetrating lens group, optical filter.
Preferably, optical filter is a piece of, and at least two lens group shares a tablet filter.
Preferably, photosensitive element is connected by flexible circuit board and is drawn.
Preferably, at least two lens group is respectively suitable for different photographed scenes.
A kind of electronic equipment, using above-mentioned camera module.
Preferably, photosensitive element is connected to the mainboard of electronic equipment by flexible circuit board.
Driver, photosensitive mould group and electronic equipment provided by the invention at least have it is following the utility model has the advantages that
Driver of the invention, using advanced marmem actuation techniques, solve existing magnetite coil or
The problem of micro motor high energy consumption, low precision, realizes low energy consumption, the driving of high-precision kinetic energy, while excellent using sliding capability
Ball slide rail more further decreases frictional resistance, improves mobile accuracy, and overcome conventional slide mechanism friction clast and cause
Abnormal problem is imaged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the driver of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the camera module of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, ball slide rail；2, marmem；3, support plate；4, sensing device；5, lens group；6, photosensitive element；7, mirror
Head mounting assembly；8, optical filter；9, flexible circuit board；10, mainboard.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to Fig. 2, a kind of driver, comprising: carriage, carriage are equipped with and are slidably installed
Support plate 3；Support plate 3 is for carrying part to be moved；Marmem 2, marmem 2 are passed through electric current, and shape memory closes
Golden 2 dilatations driving support plate 3 is moved along carriage.
The driver of the embodiment of the present invention solves existing magnetite using advanced marmem actuation techniques
The problem of coil or micro motor high energy consumption, low precision, realizes low energy consumption, the driving of high-precision kinetic energy.
In the present embodiment, carriage includes ball slide rail 1, and support plate 3 is arranged on ball slide rail 1, and support plate 3 is sliding along ball
Rail 1 is mobile.Using the superior ball slide rail of sliding capability, frictional resistance is further decreased, improves mobile accuracy, and is overcome often
The problem that rule sliding equipment friction clast causes imaging abnormal.
In the present embodiment, marmem 2 is processed into shape-memory alloy wire, shape-memory alloy wire is passed through electric current
After heating, axial shrinkage occurs, current value size is directly proportional to contracted length.Control is passed through the electric current of marmem 2, can
To change the deformation quantity of marmem, then achieve the purpose that push support plate 3 mobile.2 one end of marmem and load
Plate 3 connects, and the other end is fixed, when driver is in camera module or other devices, the other end of marmem 2
It can be fixed on the positions such as carriage, bottom plate, mounting base, phase can be provided in installation space for marmem 2
For the fixation impetus of support plate 3.When 2 heat shrinkable of marmem, pull support plate 3 mobile to fixed one end.Shape
There are two memorial alloys 2, is separately positioned on support plate 3 along the both ends of 1 moving direction of ball slide rail.When electric current flows into the shape of one end
Memory alloy wire, the shape-memory alloy wire is heated to be started to shrink, and pulls support plate 3 close to its, when electric current disconnection, other end shape
Shape memory alloys are powered, and pull support plate 3 mobile to the other end.
In the present embodiment, driver further includes the sensing device 4 for detecting 3 shift position of support plate.Sensing device 4 can
The position of real-time measurement support plate 3 guarantees that support plate 3 is moved to accurate location.Sensing device 4 is arranged on support plate 3, can be preferred
It is arranged in along the edge of 1 moving direction of ball slide rail, it is also an option that, there are two sensing devices 4, is separately positioned on 3 edge of support plate
The two edges of 1 moving direction of ball slide rail.
Preferably, sensing device 4 includes Hall sensor.Hall sensor is a kind of magnetic field made according to Hall effect
Sensor has to magnetic-field-sensitive, structure is simple, small in size, frequency response is wide, output voltage variation is greatly with long service life etc.
Advantage is used widely in displacement measurement field.
In the present embodiment, ball slide rail 1 includes spaced non magnetic ball and magnetic ball, Hall sensor induction
The shift position of support plate 3 is detected in the magnetic field that magnetic ball generates.The magnetic field that magnetic ball generates can be the magnetic of varying strength
, it is identified convenient for the detection of Hall sensor, also can choose and the magnetic ball of generation same magnetic field only is set in specific position.
Preferably, non magnetic ball and magnetic ball are arranged according to the proportional spacing of 4:1.Non magnetic ball includes ceramic balls, and/or
Magnetic ball includes magnetic metal ball.Ceramic balls can also further increase the sliding capability of ball slide rail 1.
Driver provided in this embodiment, using marmem actuation techniques, low energy consumption, high-precision uses ball
Sliding rail 1, coefficient of friction is small, and the shift position of Hall sensor and ball slide rail cooperation real-time detection support plate 3 is further ensured that shifting
Dynamic precision.
The present invention also provides a kind of camera modules, using above-mentioned driver.Camera module further include: at least two
Lens group 5, be respectively used to transmitted light；At least two lens group 5 is arranged along the extending direction of carriage；Photosensitive element
6, photosensitive element 6 is mounted on support plate 3, and is moved with support plate 3 along carriage, and different lens groups 5 is switched, and is received corresponding
5 light transmission of lens group light, carry out photosensitive imaging.
Camera module provided in this embodiment, using above-mentioned driver, can low energy consumption, accurately control photosensitive member
Part 6 is switched in a plurality of lenses group 5, is met different photographed scenes to the needs of lens group 5, is improved photosensitive element 6
Utilization rate reduces the cost of camera module.Simultaneously because reducing the usage quantity of sensitive chip, to save multiple cores
Design interval between piece, is greatly lowered the design size of camera module.
In the present embodiment, the position of at least two lens group 5, after being passed through specific currents with marmem 2
The position for driving support plate 3 mobile is corresponding.Photosensitive element 6 is needed according to actual needs to determine in the position of support plate 3, be can be
The center of support plate 3, is also possible to edge, when photosensitive element 6 is in 3 center of support plate, the mobile position of support plate 3 and lens group
5 position axis is overlapped, to guarantee that photosensitive element 6 can smoothly receive light.When photosensitive element 6 is in 3 edge of support plate
When, the mobile position of support plate 3 corresponding will also be deviated with the position axis of lens group 5, to guarantee that photosensitive element 6 can be smooth
Receive light.Calibration support plate 3 is when being moved to different lens groups 5, the electric current being passed through in marmem 2, will current value at this time
The control signal of the lens group 5 is switched to as control photosensitive element 6.And so on, calibration support plate 3 is directed at other lens groups
Current value when 5 is as respective control signal.In addition to this, the magnetic ball position in camera module, in ball slide rail 1
Set relatively fixed with the position of lens group 5, whether Hall sensor detection support plate 3 is when being directed at lens group 5, it is only necessary to detect whether
In magnetic field in magnetic ball.
In the present embodiment, at least two lens group 5 is fixed in camera lens mounting assembly 7.Camera lens mounting assembly 7 is adopted
Use moulding.Optical filter 8 is equipped between camera lens mounting assembly 7 and carriage, after light successively penetrates lens group 5, optical filter 8
Expose to photosensitive element 6.Optical filter 8 is a piece of, the shared tablet filter 8 of at least two lens group 5.Lens group 5 and camera lens
Mounting assembly 7, optical filter 8 carry out bonding installation using common process.
In the present embodiment, since photosensitive element 6 needs to switch between different lens groups 5, the number of photosensitive element 6
It is believed that breath is drawn by the connection of flexible circuit board 9, flexible circuit board is using kapton polyimide film as made of substrate
One kind having height reliability, excellent flexible printed circuit board, with Distribution density is high, light-weight, thickness is thin, bending
Good feature, is very suitable to the data connection of photosensitive element 6 in the present embodiment.
In the present embodiment, at least two lens group 5 is respectively suitable for different photographed scenes, can be fixed-focus or change
Coke manually or automatically selects different lens groups under different photographed scenes.
The camera module of the present embodiment is had the lens group 5 of a variety of different photographed scenes, can be used with free switching,
Mobile using different current value control photosensitive elements 6, to realize the switching of different lens groups 5, control precision is high, switch speed
Fastly.
The embodiment of the present invention also provides electronic equipment, and using above-mentioned camera module, photosensitive element 6 passes through flexible circuit board
9 are connected to the mainboard 10 of electronic equipment.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (20)
1. a kind of driver characterized by comprising
Carriage, the carriage are equipped with the support plate (3) being slidably installed, and the support plate (3) is for carrying part to be moved；
Marmem (2), the marmem (2) are passed through electric current, and marmem (2) dilatation drives
The support plate (3) is moved to move along the carriage.
2. driver according to claim 1, which is characterized in that the carriage includes ball slide rail (1), the load
Plate (3) is arranged on the ball slide rail (1)；The support plate (3) is mobile along the ball slide rail (1).
3. driver according to claim 1, which is characterized in that the marmem (2) is marmem
After the shape-memory alloy wire is passed through electric current heating axial shrinkage occurs for silk, and current value size is directly proportional to contracted length.
4. driver according to claim 1 to 3, which is characterized in that there are two the marmems (2), point
It She Zhi not be in the support plate (3) along the both ends of the carriage moving direction.
5. driver according to claim 4, which is characterized in that described marmem (2) one end and the support plate
(3) it connects, the other end is fixed.
6. driver according to claim 2, which is characterized in that driver further includes for detecting the support plate (3) position
The device (4) set.
7. driver according to claim 6, which is characterized in that the sensing device (4) is arranged in the support plate (3)
On.
8. driver according to claim 7, which is characterized in that the sensing device (4) includes Hall sensor.
9. driver according to claim 8, which is characterized in that the ball slide rail (1) includes spaced non-magnetic
Property ball and magnetic ball, the Hall sensor incude the magnetic field that the magnetic ball generates, detect the shifting of the support plate (3)
Dynamic position.
10. driver according to claim 9, which is characterized in that the non magnetic ball and magnetic ball are according to 4:1's
Proportional spacing setting.
11. driver according to claim 10, which is characterized in that the non magnetic ball includes ceramic balls, and/or
The magnetism ball includes magnetic metal ball.
12. a kind of camera module, which is characterized in that use any driver of claim 1-11.
13. camera module according to claim 12, which is characterized in that camera module further include:
At least two lens group (5)；Described at least two lens group (5) is arranged along the extending direction of the carriage；
Photosensitive element (6), the photosensitive element (6) are mounted on the support plate (3), and with the support plate (3) along the sliding
Device is mobile, switches different lens groups (5), and receive the light of corresponding lens group (5) light transmission, carries out photosensitive imaging.
14. camera module according to claim 13, which is characterized in that the cloth of described at least two lens group (5)
It is corresponding to be passed through the mobile position of specific currents rear-guard dynamic load plate (3) with the marmem (2) for seated position.
15. camera module according to claim 13, which is characterized in that described at least two lens group (5) is fixed
It is arranged on camera lens mounting assembly (7), optical filter is equipped between the camera lens mounting assembly (7) and the sensing element (6)
(8), light exposes to photosensitive element (6) after successively penetrating lens group (5), optical filter (8).
16. camera module according to claim 15, which is characterized in that the optical filter (8) be it is a piece of, it is described at least
Two lens groups (5) share a piece of optical filter (8).
17. camera module according to claim 13, which is characterized in that the photosensitive element (6) passes through flexible circuit
Plate (9) connection is drawn.
18. any camera module of 3-17 according to claim 1, which is characterized in that described at least two lens group
(5) it is respectively suitable for different photographed scenes.
19. a kind of electronic equipment, which is characterized in that use any camera module of claim 13-18.
20. electronic equipment according to claim 19, which is characterized in that the photosensitive element (6) passes through flexible circuit board
(9) it is connected to the mainboard (10) of the electronic equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059080.0A CN109698898A (en) | 2019-01-22 | 2019-01-22 | Driver, camera module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059080.0A CN109698898A (en) | 2019-01-22 | 2019-01-22 | Driver, camera module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109698898A true CN109698898A (en) | 2019-04-30 |
Family
ID=66234172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910059080.0A Pending CN109698898A (en) | 2019-01-22 | 2019-01-22 | Driver, camera module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109698898A (en) |
Cited By (7)
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| CN111510632A (en) * | 2020-04-28 | 2020-08-07 | 深圳创维－Rgb电子有限公司 | Lifting camera position detection circuit, method and computer readable storage medium |
| CN112526801A (en) * | 2019-09-03 | 2021-03-19 | 宏达国际电子股份有限公司 | Double-lens imaging module and extraction method thereof |
| CN112637463A (en) * | 2020-12-22 | 2021-04-09 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| WO2021092856A1 (en) * | 2019-11-14 | 2021-05-20 | 南昌欧菲光电技术有限公司 | Camera module, and mobile terminal |
| CN113154191A (en) * | 2020-01-22 | 2021-07-23 | 苏州佳世达电通有限公司 | Support frame and display device using same |
| CN113230132A (en) * | 2021-05-20 | 2021-08-10 | 浙江厚达智能科技股份有限公司 | Traditional Chinese medicine decocting method |
| CN113230133A (en) * | 2021-05-20 | 2021-08-10 | 浙江厚达智能科技股份有限公司 | Multi-blade stirring type medicine decocting pot |
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| CN112637463B (en) * | 2020-12-22 | 2022-10-21 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113230132A (en) * | 2021-05-20 | 2021-08-10 | 浙江厚达智能科技股份有限公司 | Traditional Chinese medicine decocting method |
| CN113230133A (en) * | 2021-05-20 | 2021-08-10 | 浙江厚达智能科技股份有限公司 | Multi-blade stirring type medicine decocting pot |
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Application publication date: 20190430 |