CN106667610A - Electric toothbrush - Google Patents
Electric toothbrush Download PDFInfo
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- CN106667610A CN106667610A CN201510757359.8A CN201510757359A CN106667610A CN 106667610 A CN106667610 A CN 106667610A CN 201510757359 A CN201510757359 A CN 201510757359A CN 106667610 A CN106667610 A CN 106667610A
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Abstract
The invention provides an electric toothbrush which comprises a main body bracket, a driving device and a brush head, wherein the main body bracket plays a supporting effect; the driving device is arranged on the main body bracket; the brush head is arranged at one end of the main body bracket and assembled with the driving device; a support shaft is arranged on the main body bracket; the driving device is assembled on the main body bracket through the support shaft, so that a lever structure that the support shaft is taken as a fulcrum shaft of the driving device and the brush head assembled with the driving device is formed; a circuit part is further arranged on the main body bracket; the circuit part comprises a sensor which is used for generating a corresponding detection value when the brush head is dragged and the driving device is driven to rotate around the support shaft, and a main control unit which is used for recognizing the intensity of the dragging force of the brush head according to the detection value generated by the sensor. Therefore, the invention provides a novel brush head pressure detection mode, high stability can be achieved, moreover, the manufacturing cost can be greatly lowered.
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 a kind of electric toothbrush is provided, including passive master
Body support frame, the driving means being configured on the main body rack, be configured in main body rack one end with should
The brush of driving means assembling；Characterized in that,
One support shaft is set on the main body rack, and the driving means are by the support shaft
It is assemblied on the main body rack, forms brush that driving means assemble with it with support shaft as fulcrum
Lever construction；
Circuit part is provided with the main body rack, including：
Sensor, makes the driving means rotate around the support shaft for being exerted a force when brush
The corresponding detected values of Shi Shengcheng；
Main control unit, the detected value for being generated according to the sensor identifies brush
The size for being exerted a force.
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 mode, and stability is high, together
When can also substantially reduce cost of manufacture.
Metal parts is provided with the driving means away from the side of the support shaft；
The sensor is oppositely arranged with the metal parts, its it is different from the metal parts 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 provide a kind of new brush-head pressure detection mode, its compact conformation,
Stability is high, while cost of manufacture can also be substantially reduced.
Optionally, the sensor is inductance sensor.
Optionally, the inductance sensor includes inductance coil, the sense electrically connected with inductance coil
Inductance value digital quantizer is answered, the induced electricity inductance value digital quantizer output end and the master control list
Unit's electrical connection；
The inductance coil is just to the metal parts planographic in the electricity of the circuit part
On the mainboard of road.
The inductance sensor includes inductance coil, the induced electricity inductance value electrically connected with inductance coil
Digital quantizer, the induced electricity inductance value digital quantizer output end is electrically connected with the main control unit
Connect；
Optionally, the line footpath of the inductance coil is 0.3mm, and the number of turn is 40.
Optionally, the inductance coil just to the metal parts planographic in the circuit portion
On the circuit main board for dividing.
Optionally, the induced electricity inductance value digital quantizer includes TI LDC1000 chips.
Optionally, the sensor is capacitance sensor or infrared sensor.
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；
Fig. 6 is the structural representation of the PH sensors 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.
Table 1
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 (7)
1. a kind of electric toothbrush, including passive main body rack, it is configured in the main body
Driving means on support, the brush for being configured in main body rack one end and driving means assembling；
Characterized in that,
One support shaft is set on the main body rack, and the driving means are by the support shaft
It is assemblied on the main body rack, forms brush that driving means assemble with it with support shaft as fulcrum
Lever construction；
Circuit part is provided with the main body rack, including：
Sensor, makes the driving means rotate around the support shaft for being exerted a force when brush
The corresponding detected values of Shi Shengcheng；
Main control unit, the detected value for being generated according to the sensor identifies brush
The size for being exerted a force.
2. electric toothbrush according to claim 1, it is characterised in that in the driving
Device is provided with metal parts away from the side of the support shaft；
The sensor is oppositely arranged with the metal parts, its it is different from the metal parts away from
From and induce different electrical signals as different detected values.
3. electric toothbrush according to claim 2, it is characterised in that the sensor
For inductance sensor.
4. electric toothbrush according to claim 3, it is characterised in that the inductance is passed
Sensor includes inductance coil, and the induced electricity inductance value digital quantizer electrically connected with inductance coil should
Induced electricity inductance value digital quantizer output end is electrically connected with the main control unit, defeated to main control unit
Go out detection data；
The inductance coil is just to the metal parts planographic in the electricity of the circuit part
On the mainboard of road.
5. electric toothbrush according to claim 4, it is characterised in that the inductor wire
The line footpath of circle is 0.3mm, and the number of turn is 40.
6. electric toothbrush according to claim 4, it is characterised in that the induced electricity
Inductance value digital quantizer includes TI LDC1000 chips.
7. electric toothbrush according to claim 1, it is characterised in that the sensor
For capacitance sensor or infrared sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757359.8A CN106667610A (en) | 2015-11-09 | 2015-11-09 | Electric toothbrush |
Applications Claiming Priority (1)
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| CN201510757359.8A CN106667610A (en) | 2015-11-09 | 2015-11-09 | Electric toothbrush |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107753134A (en) * | 2017-11-14 | 2018-03-06 | 上海携福电器有限公司 | Photosensitive pressure warning unit for electric cleaning care appliance |
| CN108836547A (en) * | 2018-07-23 | 2018-11-20 | 广东小天才科技有限公司 | A kind of electric toothbrush control method and electric toothbrush |
| EP3556247A1 (en) * | 2018-04-18 | 2019-10-23 | Braun GmbH | Personal hygiene device with treatment force measurement unit |
| 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 |
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| 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 |
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