CN106667609A - Electric toothbrush - Google Patents
Electric toothbrush Download PDFInfo
- Publication number
- CN106667609A CN106667609A CN201510757356.4A CN201510757356A CN106667609A CN 106667609 A CN106667609 A CN 106667609A CN 201510757356 A CN201510757356 A CN 201510757356A CN 106667609 A CN106667609 A CN 106667609A
- Authority
- CN
- China
- Prior art keywords
- electric toothbrush
- brush
- main body
- support shaft
- sensor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 48
- 239000004020 conductor Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 20
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 29
- 230000008859 change Effects 0.000 description 14
- 230000005611 electricity Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 210000000214 mouth Anatomy 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 210000003128 head Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 208000010266 Aggressive Periodontitis Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 208000007565 gingivitis Diseases 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000030194 mouth disease Diseases 0.000 description 1
- 201000006727 periodontosis Diseases 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
Landscapes
- Brushes (AREA)
Abstract
The invention provides an electric toothbrush. The electric toothbrush comprises a main-body support with a supporting effect, a driving device arranged on the main-body support, and a brush head which is arranged at one end of the main-body support and is in assembling connection with the driving device. A support shaft is arranged on the main-body support. The driving device is assembled on the main-body support through the support shaft. The driving device and the brush head form a lever structure with the support shaft as the fulcrum. The main-body support is provided with a sensor for generating different detection values caused by different rotation angles of the driving device rotating around the support shaft due to different forces applied on the brush head. When the brush head is applied by different pressures, the driving device rotates around the support shaft to generate different rotation angles, and then the sensor generates different detection values. Through the detection values, the pressure applied on the brush head is judged. A new brush head pressure detection structure is provided. The structure is compact and has high stability, and manufacture cost can be greatly reduced.
Description
Technical field
The present invention relates to a kind of electric toothbrush.
Background technology
Electric toothbrush is the important a member in popular health products, main by the quick of electric core
Rotation shakes, and makes brush produce high-frequency vibration, and toothpaste is resolved into trickle foam by moment, deep
Enter to clean teeth space.Compared with ordinary toothbrush, electric toothbrush can more thoroughly remove bacterial plaque, subtract
The mouth diseases such as few gingivitis, periodontosis and bleeding gums.The control of electric toothbrush toothbrushing force
Problem is always a great problem in the field, if pressure is too little, be easily caused clean rate it is low, effect
It is really poor, the too big then easy damaged gum of pressure.
The method of existing most of electric toothbrush detection pressure is to detect that the electric current of motor is big
It is little, i.e., when brush is pressurized, motor load increase, electric current produces change, by electricity
Flow size to judge the pressure size suffered by brush.In addition, Application No. CN99235003
Patent Publication discloses a kind of electric toothbrush, and in brush and switch room a toothbrushing force is provided with
Instrumentation mechanism, the dynamometry that toothbrushing force is consisted of brush body, brush bar, support shaft, spring
The switch motion of lever controlling switch, when toothbrushing force is worth and during less than limit value more than unlatching,
Switch closure, toothbrush workpiece；When toothbrushing force is less than unlatching value or during more than limit value, switch
Disconnect, toothbrush does not work.
The content of the invention
Present invention is primarily targeted at offer is a kind of to detect structure with new brush-head pressure
Electric toothbrush.
The present invention proposes a kind of electric toothbrush, including passive main body rack, configuration
Driving means on the main body rack, be configured in described main body rack one end and with driving dress
The brush of assembly connection is put, a support shaft, the driving means are set on the main body rack
It is assemblied on the main body rack by the support shaft, and the driving means and brush shape
Into the lever construction with the support shaft as fulcrum, it is provided with because described on the main body rack
Brush makes the driving means examine around the rotational angle difference of the support shaft by the difference that exerts a force
The different sensor of measured value.
By upper, lever knot of the driving means with brush formation with the support shaft as fulcrum
Structure, when the brush is applied in different pressures, according to lever principle, the driving means will
Different rotational angles are produced around the support shaft, thus makes the sensor produce different inspections
Measured value, goes to judge the pressure suffered by brush by the size of the detected value produced by the sensor
Size, this brush-head pressure detection structure feeds back brush by the change of the driving means displacement
The size of head pressure, it provides a kind of new brush-head pressure detection structure, its compact conformation,
Stability is high, while cost of manufacture can also be substantially reduced.
Preferably, the driving means are microseism motor.
Preferably, it is provided with metallic conductor away from the side of the support shaft in the driving means；
The sensor is oppositely arranged with the metallic conductor, its it is different from the metallic conductor away from
From and induce different electrical signals as different detected values.
By upper, when the brush is applied in different pressures, according to lever principle, the metal
Conductor will produce different rotational angles around the support shaft, so change the metallic conductor with
The distance between described sensor, by the distance between the metallic conductor and described sensor no
Different electrical signals are induced with the sensor, the different electrical signals are sensor product
Raw different detected values, go to judge brush by the size of the detected value produced by the sensor
Suffered pressure size, it provides a kind of new brush-head pressure detection structure, its compact conformation,
Stability is high, while cost of manufacture can also be substantially reduced.
Preferably, the sensor is inductance sensor.
By upper, when the brush is applied in different pressures, according to lever principle, the metal
Conductor will produce different rotational angles around the support shaft, then the metallic conductor is relative to institute
State inductance sensor to move, according to electromagnetic induction principle, the inductance sensor will sense
Go out different electrical signals, the different electrical signals are the different detected values that the inductance sensor is produced,
Go to judge the pressure suffered by brush by the size of the detected value produced by the inductance sensor
Size.
Preferably, the inductance sensor includes the inductor wire with the metallic conductor just to arranging
Circle, the inductance coil planographic is on the circuit main board of the electric toothbrush.
Preferably, be provided with metal framework on the outside of the driving means, the metallic conductor with
The metal framework is wholely set.
By upper, because the metallic conductor is wholely set with the metal framework, can simplify electronic
The structure of toothbrush so as to which structure is compacter.
Preferably, the circuit main board is arranged on filling in contrast to described driving for the main body rack
The side put, opens up a through hole opposite with the inductance coil on the main body rack.
By upper, the through hole is mainly inductance coil and is stepped down, it is to avoid the metal framework with
Induced signal between inductance coil is blocked and interference, and then guarantees the detection of inductance sensor
Effect.
Preferably, the angle of rotation for limiting the driving means is provided with the main body rack
The up/down stopping means of degree scope.
Preferably, an opening up stopper slot is provided with the main body rack, in the drive
The side away from the brush of dynamic device is provided with the limiting section that bottom has flange, described spacing
Portion is stretched into the stopper slot and is locked at the opening of the stopper slot by the flange, by
The stopper slot and limiting section constitute the position limit device.
By upper, when the metal framework is moved upwardly by under driving means drive, when the flange
The metal framework will stop moving up when being locked at the opening of stopper slot, thus limit institute
The moving range of metal framework is stated, and then limits the moving range of the brush to guarantee the brush
Head is moved in the reasonable scope all the time.
Preferably, receive equipped with the spring abutted against with the flange, by institute in the stopper slot
State spring and constitute the lower caging device.
By upper, first, the spring can limit the downward fortune of limiting section as lower caging device
Dynamic scope, and then limiting section is limited in the reasonable scope；Second, when limiting section is moved to down
During extreme position, spring applies a restoring force to the limiting section, and limiting section is under the restoring force effect
Can easily reset；3rd, adjust when brush is placed in following dead-center positions by the rubber of brush
Cushion rubber is applied to the deformation power of the lever construction being made up of microseism motor, ties aforesaid lever
Structure is in stress balance position.
Preferably, it is integrally formed along the flange below the flange on the limiting section
The projection for axially extending down, and the projection stretched into the spring.
By upper, because the projection is stretched into the spring, can be to described by the projection
Spring is preferably positioned, it is ensured that the connective stability of the spring and limiting section.
Preferably, it is provided with to limit the limiting section on the main body rack and is directed away from institute
State the metal framework stopping means of the side shifting of stopper slot one.
By upper, when the brush is in the dead-center position, the metal framework stopping means energy
Enough prevent the metal framework from excessively moving upward, make the metal framework be maintained at zero point position
Put.
Preferably, sealing block is provided with the side near the brush on the main body rack,
The power transmission shaft of the microseism motor after the sealing block with the brush assembly connection.
By upper, the sealing block prevents electric toothbrush from intaking in use causes the microseism
Motor damage.
Description of the drawings
Fig. 1 is the top view of electric toothbrush；
Fig. 2 is the upward view of electric toothbrush；
Fig. 3 be along A-A shown in Fig. 1 to profile；
Fig. 4 is the partial enlarged drawing of electric toothbrush shown in Fig. 3；
Fig. 5 is the local oblique view of electric toothbrush shown in Fig. 3；
The structural representation that Fig. 6 pops one's head in for the PH of electric toothbrush；
Fig. 7 is the circuit theory diagrams of electric toothbrush；
Fig. 8 is the circuit diagram of electric-motor drive unit；
Fig. 9 is the circuit diagram of inductance coil and induced electricity inductance value digital quantizer；
Figure 10 is the circuit diagram of PH detection parts；
Figure 11 is master control element circuit figure；
Figure 12 is the circuit theory diagrams of power supply unit；
Figure 13 is the circuit diagram of charging receiving circuit；
Figure 14 is the circuit diagram of charging detecting circuit；
Figure 15 is the circuit diagram of 5V bleeder circuits；
Figure 16 is the circuit diagram of 3V bleeder circuits；
Figure 17 is the circuit diagram of communication unit.
Specific embodiment
Electric toothbrush of the present invention is described in detail referring to Fig. 1～Figure 17.
As shown in FIG. 1 to 3, electric toothbrush generally includes the brush holder 1 and brush of split type setting
2.Brush holder 1 has a housing 11, is provided with along the axially arranged of brush holder 1 in the housing 11
Main body rack 12, is integrally formed multiple separating parts, by this multiple points on the main body rack 12
Every portion the space that housing 11 is surrounded is divided into install the battery case 111 of battery and is used
To receive the driving means of dress brush 2 and the cavity 112 of activity space provided as the driving means.
Electric tooth is installed in the side in contrast to battery case 111 and cavity 112 of main body rack 12
The circuit main board 14 of brush, is provided with the main control unit 711 of electric toothbrush in the circuit main board 14,
And the connected drive part of difference, pressure detecting part, PH detection parts, switch
Circuit and communication unit grade, and physical circuit will be described in detail later.In aforementioned battery case 111
Inside it is packaged with the supply line electrically connected with the circuit main board 14；In housing 11 away from brush
2 end is provided with the charging base 113 to be charged for the battery in battery case 111.
On/off state and the work for controlling electric toothbrush is provided with the lower surface of housing 11
The multiple buttons 114 of pattern constitute the on-off circuit 715, this multiple buttons 114 and circuit
The button arranged on mainboard 14 is corresponded.
In the present embodiment, drive part includes electric-motor drive unit 720, and connected
Microseism motor 13 is constituted.As shown in figure 8, the electric-motor drive unit 720 is adopted includes type
Number for DRV8XXX series motor drive ic realize, the signal input port of the chip
(nSLEEP, IN1, IN2) is connected with the main control unit 711, output port (OUT1,
OUT2) the microseism motor 13 is connected, two interfaces of J6, J7 are and know in motor by force in figure
13 interface, electric-motor drive unit 720 is used to be driven according to the control instruction of main control unit 711
Microseism motor 13 works, and the control instruction includes rotary speed instruction and dormancy instruction.It is micro- at this
The both sides up and down of seismoelectric machine 13 are separately installed with parallel with the both sides up and down of microseism motor 13
Metal framework 131.One is fixed in the front end (i.e. near one end of brush 2) of main body rack 12
Support shaft 121, the support shaft 121 and the length direction through brush holder 1 and its above-below direction institute
Plane it is perpendicular (i.e. support shaft 121 along shown in Fig. 3 left and right directions arrange).It is aforementioned
Metal framework 131 is rotated with the support shaft 121 and is connected, and makes to be fixed on the metal framework 131
Microseism motor 13 can relative to main body rack 12 produce small angle range in rotation.Leading
The front end of body support frame 12 is close to support shaft 121 and is fixed with sealing block 122, microseism motor 13
Power transmission shaft 132 sequentially pass through sealing block 122, housing 11 and from the housing along its length
11 front side is stretched out, and brush 2 is generally inserted on the aforementioned extension of power transmission shaft 132.
The front side of housing 11 generally offers the hole stretched out for power transmission shaft 132, and sealing block 122 is main
To seal to the hole, preventing electric toothbrush from intaking in use causes microseism motor
13 damage.Microseism motor is can be seen that with reference to aforementioned structure description and with reference to Fig. 3 and Fig. 4
13 define the lever construction with support shaft 121 as fulcrum with brush 2.
It is opening up one to be provided with main body rack 12 near its rear end in abovementioned cavity 112
Stopper slot 123, receive in the stopper slot 123 and fill a spring 124.Such as Fig. 3 and Fig. 4 institutes
Show, metal framework 131 is main to be made up of two opposite U-frame framves that are open, at the two
Respectively the integrally formed length direction along brush holder 1 extends backwards simultaneously at the open rearward end of U-frame frame
It is close to the connecting portion 131a being set together, in order to convenience described below is by positioned at the U of downside
Shape metal framework is defined as lower metal framework 131b.Connecting portion 131a rear end (i.e. away from
The side of brush 2) an overall limiting section 133 for being in the form of a column and arranging down is set, in the limit
The bottom in position portion 133 is integrally formed a flange 133a and positioned at flange 133a lower sections and along it
The raised 133b for axially extending down.The bottom of limiting section 133 is stretched into stopper slot 123, its
In, flange 133a is placed in stopper slot 123 and abuts against with spring 124, and raised 133b stretches
In entering spring 124.When metal framework 131 is moved upwardly by under the drive of microseism motor 13, when
Metal framework 131 stops moving up when flange 133a is locked at the opening of stopper slot 123.
Position limit device of the present invention is constituted by aforementioned stopper slot 123 and limiting section 133, by spring
124 constitute lower caging device of the present invention, and the spring 124 mainly has following effect：The
One, the downward range of motion of limiting section 133 can be limited as lower caging device, and then will limit
Position portion 133 limits in the reasonable scope；Second, when user applies different pressures to brush 2
When, according to lever principle, limiting section 133 will move downwardly to diverse location, then spring 124
One restoring force will be applied to the limiting section 133, it can be ensured that limiting section 133 every time can be suitable
Profit is reset at following defined dead-center positions, so, it is possible to ensure metal framework 131
Mobile route, the displacement and user's pressure applied for making limiting section 133 forms a linear pass
System；3rd, adjust when brush 2 is placed in following dead-center positions and applied by the rubber ring of brush
To the deformation power of the lever construction being made up of microseism motor, aforesaid lever structure is set to be in stress
Equilbrium position.
In addition, the rear upper side in abovementioned cavity 112 on main body rack 12 arranges a plane
Portion 125, the planar portions 125 and aforementioned stopper slot 123 just to arranging, by the planar portions 125
Constitute metal framework stopping means of the present invention.In the present invention, as shown in Figure 3 and Figure 4,
Metal framework 131, the microseism motor 13 on the metal framework 131 and aforementioned spacing
Portion 133 defines the lever construction with support shaft 121 as fulcrum with brush 2 jointly, works as brush
When 2 up/downs are moved, according to lever principle, metal framework 131, installed in the metal frame
Microseism motor 13 and aforementioned limiting section 133 on frame 131 then downwards/move up.This
It is bright it is middle by electric toothbrush be in unused state when metal framework 131, installed in the metal framework
The physical slot residing for microseism motor 13 and aforementioned limiting section 133 on 131 is defined as zero point
Position, when brush 2 is in the dead-center position, metal framework 131 is in the deformation force of spring 124
To pop up under effect, aforesaid plane portion 125 can prevent metal framework 131 excessive upward
It is mobile, make metal framework 131 be maintained at dead-center position by the restriction of the planar portions 125.
In the present invention, pressure detecting part is used for above-mentioned metal framework 131b relative to inductance
The displacement of coil 719 is detected, to determine brush dynamics.Pressure detecting part
Specific embodiment is as follows：Inductance coil 719 as shown in Figure 7 is provided with circuit main board 14
And connected induced electricity inductance value digital quantizer 718, wherein, inductance coil 719 sets
Positioned at the lower section of microseism motor 13 on circuit main board 14 and with aforementioned lower metal framework 131b
Part just to arrange, a diameter of 0.3mm of inductance coil 719, the number of turn is 40.By
The experimental data of design phase shows, when the inductance coil 719 using above-mentioned diameter and the number of turn
When, the data of its collection are most sensitive, and data variation amount is maximum.Shown in table specific as follows 1,
Transverse axis represents brush dynamics, and ordinate represents five kinds of brushing modes.
As shown in Fig. 3～Fig. 5, offer on main body rack 12 relative with inductance coil 719
The through hole 126 put, the through hole 126 is mainly inductance coil 719 and is stepped down, it is to avoid lower gold
Induced signal between category framework 131b and inductance coil 719 is blocked and interference, and then really
Protect the Detection results of inductance sensor.In the present invention, by lower metal framework 131b composition metals
Conductor, inductance coil 719 is mainly sensed caused by the change in displacement because of lower metal framework 131b
Inductive sensor numerical value change, due to inductance coil 719 be used for detect near downside arrange
Displacement at the change in displacement rather than limiting section 133 of lower metal framework 131b or connecting portion 131a
Change, can shorten the displacement range that inductance coil 719 is detected, so can reduce to electricity
The parameter (including the number of turn and number of plies) of sense coil 719 is required, and then inductance coil needed for reducing
719 size.Lower metal framework 131b microseism motor 13 drive lower edge it is close/away from inductance
In the direction reciprocating movement of coil 719, the lower metal framework 131b and inductance coil 719
The distance between change, because of the distance between both, change will be in inductance coil
The numerical value change of inductive sensor is produced on 719, the numerical value change is turned by induced electricity inductance value numeral
Parallel operation 718 is identified after conversion, is sent to main control unit 711, and main control unit 711 is by institute
The data of reception reflect that electric toothbrush user is applied to the pressure of brush 2 as different detected values
Power, and then reflect brush dynamics size.As shown in figure 9, the induced electricity inductance value numeral conversion
Device 718 adopts the chip of model LDC1000 to realize,
Realized for electric toothbrush user is applied to brush using inductance sensor in the present embodiment
The detection of 2 pressure, in addition, other modes may also be employed.For example inductance sensor is replaced
For infrared sensor, infrared ray is launched by infrared sensor, according to infrared ray by lower metal frame
The infra-red intensity of frame 131b reflections judges distance, so as to realize the detection of brush dynamics.
When using infrared sensor, metal framework is not limited to, it is any to hinder infrared ray
Material is capable of achieving.
Or, can also be realized using capacitance sensor, for example inductance coil 719 is replaced with
Capacitance sensor fixed polar plate, by lower metal framework 131b capacitance sensor activity pole is replaced with
Plate.Two pieces of pole plates electrically connect a signal processing chip jointly, when the relative position of two-plate occurs
During change, its interelectrode capacity changes and forms differential capacitor, and signal processing chip is detected
The capacitance variations and caused voltage change, so as to detect distance therebetween.
As shown in figure 3, forming a recess on the upper surface of housing 11, match somebody with somebody in the recess
It is equipped with PH detection parts.As shown in Figure 3 and Figure 6, PH detection parts include being arranged on recess
PH that the base 115 of front end and the base 115 are detachably connected probe 712, be arranged on it is recessed
One shift knob 116 and the shift knob 116 of portion rear end is formed at the switch of one and performs
Portion 117.Wherein, base 115 is rotated with housing 11 by rotating shaft 115a and is connected；PH pops one's head in
The strip that the 712 overall length directions in along brush holder 1 are arranged, its front end is by plugging knot
Structure is formed with base 115 and is detachably connected, and its rear end abuts against with shift knob 116.Bottom
The appearance of seat 115, PH probe 712 and shift knob 116 is identical with housing 11.
It is in approximately inverted U-shaped locating slot to form side respectively in the left and right sides of base 115
118, the strip that also the overall length direction in along brush holder 1 is arranged of enforcement division 117 is switched,
A pair linking arms towards front upper place projection are symmetrically formed in the front end of the switch enforcement division 117
119, the front end of this pair of linking arm 119 is placed in aforementioned a pair of locating slots 118 and both shapes
Connect into rotating.A pair first screens and second are also symmetrically formed on the left and right sides wall of recess
Screens, and both arrange along the orientated lengthwise of brush holder 1, wherein, the first screens is located at the
Two screens rears, the position of the closure of the first screens correspondence PH probes 712, the second screens correspondence
PH 712 open positions of probe.Being integrally formed in the left and right sides of switch enforcement division 117 can
The fitting portion mutually chimeric with aforementioned first screens and the second screens.When opening PH probes 712,
Forward pull switch button 116 moves forward switch enforcement division 117 to user, until aforementioned
In embedded second screens of fitting portion, in this process, linking arm 119 promotes base 115 and makes
It surrounds rotating shaft 115a and is rotated up, and makes PH probes 712 by jack-up and is rotated up opening.
When closing PH probes 712, user pulls back shift knob 116, makes switch enforcement division
117 are moved rearwards by, until in embedded first screens of aforementioned fitting portion, in this process, connection
Arm 119 pulls base 115 and makes it surround rotating shaft 115a and rotates down, and makes PH probes 712
Rotate down, until the rear end of PH probes 712 contacts and be connected to shift knob 116
Together.
In addition, a pair of contact 115b is additionally provided with the front end of base 115, in Fig. 3 and Fig. 5 institutes
Show that sealing block 122 is provided with a pair supporting contacts matched with this pair of contact 115b, this
A pair supporting contacts electrically connect with aforementioned circuit mainboard 14.In the bottom of shift knob 116 also
Be provided with a magnet, in aforementioned recess in the magnet just to place encapsulation one Hall switch.PH
When probe 712 is opened, shift knob 116 is moved forward, and makes to be fixed on the bottom of shift knob 116
The magnet in portion misplaces with Hall switch, and so as to produce potential difference, then Hall switch will be to electricity
The main control unit 711 of dynamic toothbrush sends an electric signal corresponding with PH 712 startups of probe.
When PH probe 712 fully open when, PH pop one's head in 712 front ends a pair of contact 115b with it is close
Supporting contact electrical connection on envelope block 122, then PH probes 712 and circuit main board 14 form electricity
Connection.Conversely, when PH probes 712 are closed, the electricity of PH probes 712 and circuit main board 14
Connection disconnects；Meanwhile, shift knob 116 is moved rearwards by, and makes to be fixed on the bottom of shift knob 116
The magnet in portion is aligned with Hall switch, then Hall switch is by the main control unit 711 of electric toothbrush
Send an electric signal corresponding with PH 712 closings of probe.
Figure 10 show the circuit diagram of PH detection parts in the present embodiment.Including what is be sequentially connected
PH probes 712, amplifier unit 713 and boosting unit 714.
In the present embodiment, the PH probes 712 include an indicator electrode port and reference electricity
Extreme mouth.Its dead-center position of indicator electrode port be in PH7, its electrode potential and saliva from
Sub- activity is linear, so as to detect intraoral acid-base value.
Based on this, amplifier unit 713 includes the first discharge circuit and the second discharge circuit, respectively
It is connected with a port of PH probes, two ports for popping one's head in PH provide high balk ring
Border, constitutes double high impedance input circuits.Due to PH probe internal resistance it is very high, therefore it is required that front storing
Big device has higher input impedance, so as to strengthen antijamming capability, it is to avoid other electric signals pair
It produces impact.
Specifically, the first discharge circuit includes the circuit of model TLV221 chip, and it is positive
The reference electrode port that input port IN+ pops one's head in the PH is connected, reverse input end mouth IN-
After being connected with output port OUT, as output end reference electrode data are exported.
The circuit of the second discharge circuit including model TLV22541 chip, it is first reversely defeated
Instruction electricity after inbound port 3IN- is connected with the first output port 3OUT, with PH probes
Extreme mouth connection,
Second positive input mouth 1IN+ is connected with the output end of the first discharge circuit, receives reference
Electrode data.
In the present embodiment circuit, in first, second discharge circuit and two ports of PH probes
On the circuit of connection, the electric capacity for filtering is additionally provided with.
TLV22541 chips calculate the potential difference of indicator electrode and reference electrode, that is, represent mouth
Chamber soda acid degrees of data, is exported to main control unit 711, i.e., described in Figure 10 by output port
Second reverse input end mouth 1IN- of TLV22541 chips is connected with the second output port OUT
Afterwards, as output end, the potential difference of output indication electrode and reference electrode represents oral cavity soda acid
The data of degree are to main control unit 711.
Further, because the voltage range that PH probes 712 are gathered is -500mv～500mv,
And the voltage range that the master chip in main control unit 711 can read is in -500mv～657mv.Cause
This, need to be grounded after the first positive input mouth is connected with two groups of RC circuits in parallel.It is above-mentioned
The purpose of circuit connection is, as boosting unit 714, by the port " virtual earth ", so as to
Boosting process is carried out to the potential difference of indicator electrode and reference electrode, so as in main control unit 711
Master chip can read.
In addition, also including connecting with power pack in first discharge circuit and the second discharge circuit
The circuit for connecing, because it belongs to common linking techniques, repeats no more.
Fig. 7 is the circuit theory diagrams of electric toothbrush, as shown in fig. 7, the automatically controlled system of electric toothbrush
System mainly includes the front main control unit 711 for being arranged on circuit main board 14 addressed, and difference
The pressure detecting part being connected with main control unit 711, i.e., the PH being sequentially connected as mentioned above is visited
712, amplifier unit 713 and boosting unit 714；PH detection parts, i.e., as mentioned above according to
The inductance coil 719 and induced electricity inductance value digital quantizer 718 of secondary connection；Drive part, i.e.,
The electric-motor drive unit 720 being connected with each other as mentioned above and microseism motor 13；On-off circuit 715.
In addition, the power supply unit 722 for also including being connected with main control unit 711, LED array 716 with
And communication unit 717.As shown in figure 11, the main control unit 711 in the present embodiment adopts model
Chip for N51822 is realized.
As shown in figure 12, electric unit 722 includes the charging receiving circuit being sequentially connected, and
The connected bleeder circuit of difference and charging detecting circuit.
The 7V voltages that the bleeder circuit is used to be received charging receiving circuit switch to electric tooth
3V voltages and 5V voltages needed for brush inside.The charging detecting circuit is used to judge to charge
When receiving circuit is charged, the notification being charged is exported to main control unit 711,
Main control unit 711 is received after above- mentioned information, learns that electric toothbrush is charged, so as to export
Instruction control closing institute is functional, to prevent electric leakage.
As shown in figure 13, the charging receiving circuit includes the charging of model BQ5105xB
Receiver is realized.
As shown in figure 14, charging detecting circuit is connected with the output port of charging receiving circuit,
When there is electric signal to be input into, electric signal was entered after partial pressure and was exported to main control unit 711.
As shown in figure 15,5V bleeder circuits include that the chip of model APW7137 is realized；
As shown in figure 16,3V bleeder circuits include that the chip of model TPS7XX series is realized.
As shown in figure 17, communication unit 717 adopts Bluetooth technology, by above-mentioned detected brush
Tooth dynamics data and/or oral cavity soda acid degrees of data are carried out after Bluetooth modulation, to the smart mobile phone of user
Terminal is exported, and is checked in order to user.
In addition, also including memory cell (not shown), it is connected with the main control unit 711,
For storing brush dynamics data and the oral cavity soda acid degrees of data that main control unit 711 is received.
With reference to the work of said structure and circuit theory description to electric toothbrush of the present invention
Easily described as principle.
When being brushed teeth using electric toothbrush, user presses first the start button on the surface of housing 11
Start microseism motor 13,2 one pressure of brush are then applied to again, the pressure will be controlled
The brush bristle dynamics of the contact with user's dental surface.Aforementioned pressure cause brush 2 upwards/
Move down, move certainly will lower metal framework 131b up/downs according to lever drive principle,
The movement of the lower metal framework 131b makes it change the distance between with inductance coil, enters
And different induction value is produced on inductance coil 719.Aforementioned different induction value passes through inductive sensor
The identification of value digital quantizer 718 changes into the receptible signal of main control unit 711 and by the signal
Send to main control unit 711.Main control unit 711 is analyzed judgement to aforementioned signal, if brush
2 pressures are improper to remind user to adjust brush dynamics.Alerting pattern may include language
Sound or light flash etc., it is corresponding also to include loudspeaker or LED light group, specifically no longer go to live in the household of one's in-laws on getting married
State.
Using electric toothbrush PH detection parts detect intraoral acid-base value when, user to
Front pull switch button 116, then PH probe 712 be rotated up open；When PH probes 712
It is supporting tactile in a pair of contact 115b and sealing block 122 of PH probes 712 when fully opening
Point is electrically connected, then PH probes 712 are formed with circuit main board 14 and electrically connected.Meanwhile, it is fixed on
The magnet of the bottom of shift knob 116 misplaces with Hall switch, then Hall switch will be to electronic
The main control unit 711 of toothbrush sends an electric signal corresponding with PH 712 startups of probe.
The information that detected of PH probes 712 pass sequentially through amplifier unit 713 and boosting unit 714
Analyzing and processing is eventually sent on main control unit 711, and 711 pairs of information of main control unit are carried out point
Analysis simultaneously provides related guidance according to the information to the MC of user.In addition, main control unit
711 are additionally operable to control communication unit 717 wirelessly exports the data of the detection to the intelligence of user
Can terminal.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc.,
Should be included within protection scope of the present invention.
For example, in the above-described embodiments, brush for electric toothbrush is under the driving of microseism motor 13
It is operated by vibrating, as oscillating mode electric toothbrush, but is not limited to this, electricity
Dynamic toothbrush can be also operated for rotation electric toothbrush, i.e. brush by rotating.
Again for example, in the above-described embodiments, sensor is the inductance sensor for including inductance coil,
But be not limited to this, the sensor can also be pressure sensor/electrical distance sensor/away from
One kind in sensor etc..
Claims (13)
1. a kind of electric toothbrush, including passive main body rack (12), be configured in
Driving means on the main body rack (12), it is configured in the main body rack (12) one end simultaneously
With the brush (2) of the driving means assembly connection, it is characterised in that
One support shaft (121), the driving means are set on the main body rack (12)
It is assemblied on the main body rack (12) by the support shaft (121), and the drive
Dynamic device forms the lever construction with the support shaft (121) as fulcrum with brush (2),
It is provided with the main body rack (12) because the brush (2) is made by force difference
The driving means are different around the rotational angle of the support shaft (121) and detected value is different
Sensor.
2. electric toothbrush according to claim 1, it is characterised in that the driving dress
It is set to microseism motor (13).
3. electric toothbrush according to claim 1, it is characterised in that in the driving
Device is provided with metallic conductor away from the side of the support shaft (121)；
The sensor is oppositely arranged with the metallic conductor, its it is different from the metallic conductor away from
From and induce different electrical signals as different detected values.
4. electric toothbrush according to claim 3, it is characterised in that the sensor
For inductance sensor.
5. electric toothbrush according to claim 4, it is characterised in that the inductance is passed
Sensor is included with the metallic conductor just to the inductance coil (719) for arranging, the inductance coil
(719) planographic is on the circuit main board (14) of the electric toothbrush.
6. electric toothbrush according to claim 5, it is characterised in that in the driving
Metal framework (131), the metallic conductor and the metal framework (131) are provided with the outside of device
It is wholely set.
7. electric toothbrush according to claim 6, it is characterised in that the circuit master
Plate (14) is arranged on the side in contrast to the driving means of the main body rack (12),
One is opened up on the main body rack (12) opposite with the inductance coil (719) logical
Hole (126).
8. electric toothbrush according to claim 1, it is characterised in that in the main body
The up/down that support (12) is provided with the rotational angle range for limiting the driving means is spacing
Device.
9. electric toothbrush according to claim 8, it is characterised in that in the main body
Support (12) is provided with an opening up stopper slot (123), in the driving means
The limiting section (133) that bottom has flange (133a) is provided with away from the side of the brush (2),
The limiting section (133) is stretched into the stopper slot (123) and by the flange (133a)
It is locked at the opening of the stopper slot (123), by the stopper slot (123) and limiting section
(133) position limit device is constituted.
10. electric toothbrush according to claim 8, it is characterised in that described spacing
Receive equipped with the spring (124) abutted against with the flange (133a), by institute in groove (123)
State spring (124) and constitute the lower caging device.
11. electric toothbrushes according to claim 9, it is characterised in that described spacing
It is integrally formed along the flange (133a) in the flange (133a) lower section in portion (133)
The projection (133b) that extends down of axial direction, and the projection (133b) stretches into the bullet
In spring (124).
12. electric toothbrushes according to claim 9, it is characterised in that in the main body
Support (12) is provided with to limit the limiting section (133) and is directed away from the stopper slot
The metal framework stopping means of (123) one side shiftings.
13. electric toothbrushes according to claim 2, it is characterised in that in the main body
Sealing block (122) is provided with the side near the brush (2) on support (12), it is described
The power transmission shaft (132) of microseism motor (13) after the sealing block (122) with the brush
(2) assembly connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757356.4A CN106667609A (en) | 2015-11-09 | 2015-11-09 | Electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757356.4A CN106667609A (en) | 2015-11-09 | 2015-11-09 | Electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106667609A true CN106667609A (en) | 2017-05-17 |
Family
ID=58864272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510757356.4A Pending CN106667609A (en) | 2015-11-09 | 2015-11-09 | Electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106667609A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108056833A (en) * | 2018-02-02 | 2018-05-22 | 广东百晟图电器实业有限公司 | A kind of pressure control device of electric toothbrush |
| WO2019119625A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳瑞湖科技有限公司 | Electric toothbrush with brush head pressure sensor |
| CN110013337A (en) * | 2019-03-12 | 2019-07-16 | 深圳市云顶信息技术有限公司 | electric toothbrush |
| CN110101478A (en) * | 2019-05-24 | 2019-08-09 | 上海谷感智能科技有限公司 | A kind of electric toothbrush and working method with pressure monitoring |
| CN110338926A (en) * | 2019-05-09 | 2019-10-18 | 中山市新活力智能家居电器有限公司 | Electric toothbrush's seal structure and electric toothbrush |
| CN110559097A (en) * | 2019-09-10 | 2019-12-13 | 东莞微感电子技术有限公司 | Novel nursing device |
| CN110840602A (en) * | 2019-10-24 | 2020-02-28 | 深圳瑞圣特电子科技有限公司 | Pressure transmission device for electric toothbrush and pressure reminder device for electric toothbrush |
| WO2020224148A1 (en) * | 2019-05-09 | 2020-11-12 | 中山市新活力智能家居电器有限公司 | Prompt device of electric toothbrush, and electric toothbrush |
| CN112515802A (en) * | 2019-09-18 | 2021-03-19 | 广州星际悦动股份有限公司 | Electric tooth brush |
| CN112842596A (en) * | 2020-09-10 | 2021-05-28 | 深圳市力博得科技有限公司 | Control method and device for measuring pressure through magnetic variables and medium |
| CN114587673A (en) * | 2022-04-15 | 2022-06-07 | 东莞市因范生活科技有限公司 | Improved electric toothbrush button-free starting method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4698869A (en) * | 1984-04-18 | 1987-10-13 | Blendax-Werke R. Schneider Gmbh & Co. | Toothbrush |
| DE4012413A1 (en) * | 1990-04-19 | 1991-10-24 | Schaiper Heinrich | Electric toothbrush with pressure regulation - using sensor detecting deflection of drive motor axis relative to toothbrush housing |
| WO1992013499A1 (en) * | 1991-01-31 | 1992-08-20 | Elektro-Wärme-Technik Inh. Günter Petz | Electric toothbrush |
| US5282291A (en) * | 1992-09-16 | 1994-02-01 | Bioware Inc. | Force sensitive handle for hand operated implement |
| CN1266361A (en) * | 1997-08-08 | 2000-09-13 | 奥普蒂瓦公司 | Pressure overload indicator system for power toothbrushes |
| CN2410983Y (en) * | 1999-10-09 | 2000-12-20 | 李东涛 | Electric toothbrush |
| US20030131427A1 (en) * | 2001-02-08 | 2003-07-17 | Alexander Hilscher | Electric toothbrushes |
| CN104567653A (en) * | 2014-12-26 | 2015-04-29 | 北京航天控制仪器研究所 | Method for measuring angle of inner frame of multi-frame pod by electric eddy-current transducer |
| CN104720914A (en) * | 2013-12-19 | 2015-06-24 | 高露洁-棕榄公司 | Electric toothbrush |
| CN205411372U (en) * | 2015-11-09 | 2016-08-03 | 北京骇思信息科技有限公司 | Electric toothbrush |
-
2015
- 2015-11-09 CN CN201510757356.4A patent/CN106667609A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4698869A (en) * | 1984-04-18 | 1987-10-13 | Blendax-Werke R. Schneider Gmbh & Co. | Toothbrush |
| DE4012413A1 (en) * | 1990-04-19 | 1991-10-24 | Schaiper Heinrich | Electric toothbrush with pressure regulation - using sensor detecting deflection of drive motor axis relative to toothbrush housing |
| WO1992013499A1 (en) * | 1991-01-31 | 1992-08-20 | Elektro-Wärme-Technik Inh. Günter Petz | Electric toothbrush |
| US5282291A (en) * | 1992-09-16 | 1994-02-01 | Bioware Inc. | Force sensitive handle for hand operated implement |
| CN1266361A (en) * | 1997-08-08 | 2000-09-13 | 奥普蒂瓦公司 | Pressure overload indicator system for power toothbrushes |
| CN2410983Y (en) * | 1999-10-09 | 2000-12-20 | 李东涛 | Electric toothbrush |
| US20030131427A1 (en) * | 2001-02-08 | 2003-07-17 | Alexander Hilscher | Electric toothbrushes |
| CN104720914A (en) * | 2013-12-19 | 2015-06-24 | 高露洁-棕榄公司 | Electric toothbrush |
| CN104567653A (en) * | 2014-12-26 | 2015-04-29 | 北京航天控制仪器研究所 | Method for measuring angle of inner frame of multi-frame pod by electric eddy-current transducer |
| CN205411372U (en) * | 2015-11-09 | 2016-08-03 | 北京骇思信息科技有限公司 | Electric toothbrush |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019119625A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳瑞湖科技有限公司 | Electric toothbrush with brush head pressure sensor |
| CN108056833A (en) * | 2018-02-02 | 2018-05-22 | 广东百晟图电器实业有限公司 | A kind of pressure control device of electric toothbrush |
| CN108056833B (en) * | 2018-02-02 | 2025-08-05 | 广东百胜图科技有限公司 | Pressure control device for electric toothbrush |
| CN110013337A (en) * | 2019-03-12 | 2019-07-16 | 深圳市云顶信息技术有限公司 | electric toothbrush |
| CN110338926A (en) * | 2019-05-09 | 2019-10-18 | 中山市新活力智能家居电器有限公司 | Electric toothbrush's seal structure and electric toothbrush |
| WO2020224148A1 (en) * | 2019-05-09 | 2020-11-12 | 中山市新活力智能家居电器有限公司 | Prompt device of electric toothbrush, and electric toothbrush |
| CN110101478B (en) * | 2019-05-24 | 2021-09-14 | 上海谷感智能科技有限公司 | Electric toothbrush with pressure monitoring function and working method |
| CN110101478A (en) * | 2019-05-24 | 2019-08-09 | 上海谷感智能科技有限公司 | A kind of electric toothbrush and working method with pressure monitoring |
| CN110559097A (en) * | 2019-09-10 | 2019-12-13 | 东莞微感电子技术有限公司 | Novel nursing device |
| CN112515802A (en) * | 2019-09-18 | 2021-03-19 | 广州星际悦动股份有限公司 | Electric tooth brush |
| CN110840602A (en) * | 2019-10-24 | 2020-02-28 | 深圳瑞圣特电子科技有限公司 | Pressure transmission device for electric toothbrush and pressure reminder device for electric toothbrush |
| CN112842596B (en) * | 2020-09-10 | 2022-03-15 | 深圳市力博得科技有限公司 | Control method and device for measuring pressure through magnetic variables and medium |
| CN112842596A (en) * | 2020-09-10 | 2021-05-28 | 深圳市力博得科技有限公司 | Control method and device for measuring pressure through magnetic variables and medium |
| CN114587673A (en) * | 2022-04-15 | 2022-06-07 | 东莞市因范生活科技有限公司 | Improved electric toothbrush button-free starting method |
| CN114587673B (en) * | 2022-04-15 | 2024-05-17 | 东莞市因范生活科技有限公司 | Improved electric toothbrush keyless starting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106667609A (en) | Electric toothbrush | |
| CN205411372U (en) | Electric toothbrush | |
| US20030115694A1 (en) | Toothbrush having a brushhead portion which contains a memory device for communicating with a microcontroller in a handle portion of the toothbrush or other device | |
| CN106667610A (en) | Electric toothbrush | |
| CN110403345A (en) | Toothbrush system | |
| AU2002221943B2 (en) | Electric toothbrush | |
| US6792640B2 (en) | Automatic electric toothbrush | |
| CN103906480B (en) | For determining the system of electric toothbrush head amplitude in mouth | |
| CN107320210A (en) | Intelligent electric toothbrush | |
| CN107693151A (en) | Possesses the electric toothbrush of pressure detecting function | |
| CN208876858U (en) | A kind of electric toothbrush | |
| JP6802786B2 (en) | Attachments and methods with identification for personal care devices | |
| CN205514999U (en) | Intelligence electric toothbrush | |
| CN205144772U (en) | Electric toothbrush | |
| CN107333126B (en) | A kind of camera module detection circuit | |
| CN105769367A (en) | Household electric toothbrush employing visual acoustic vibration | |
| CN205144774U (en) | Electric toothbrush | |
| CN205144773U (en) | Electric toothbrush | |
| JP2001095161A (en) | Auxiliaries for small-sized electric devices, and method of detecting existence of electric and/or magnetic connection between those devices | |
| CN206822731U (en) | Electric toothbrush | |
| CN205885569U (en) | Electric toothbrush | |
| CN110536205A (en) | Enter ear detection method, device and earphone | |
| CN109259881A (en) | A kind of non-hand-held intelligent dental scaler and its application method | |
| CN210872166U (en) | Tooth cleaning equipment and control system thereof | |
| CN205459167U (en) | Can prevent intelligent toothbrush of gum wearing and tearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20191220 |
|
| AD01 | Patent right deemed abandoned |