CN205144773U - Electric toothbrush - Google Patents

Abstract

The utility model provides an electric toothbrush, drive arrangement on this main part support of the main part support, configuration that have included supporting role, configuration are at the brush head of main part support one end with the assembly of this drive arrangement, set up a back shaft on the main part support, drive arrangement passes through the back shaft assembles on this main part support, forms drive arrangement and uses the lever structure of back shaft as the counter roll rather than the brush head that assembles, be provided with the circuit part on the main part support, include: be used for detecting drive arrangement winds because of the brush epicranium application of force support the sensor that the shaft position changes, oral cavity pH valve detecting element with the main control unit that drive arrangement, sensor, oral cavity pH valve detecting element electricity are connected. By last, through the change of drive arrangement displacement comes the size of the first pressure of feedback brush. In addition, can also detect the circumstances of oral cavity pH valve, can offer help for user's oral cavity problem.

Description

Electric toothbrush

Technical field

This utility model relates to a kind of electric toothbrush.

Background technology

Electric toothbrush is the important a member in popular health product, mainly through fast rotational or the vibrations of electric core, makes brush produce high-frequency vibration, instantaneously toothpaste is resolved into trickle foam, deeply clean teeth space.Compared with ordinary toothbrush, electric toothbrush more thoroughly can remove dental plaque, reduce the oral diseases such as gingivitis, periodontal disease and gingival hemorrhage.The control problem of electric toothbrush toothbrushing force is a great problem in this field always, if pressure is too little, easily causes that clean rate is low, weak effect, the too large then easy damaged gingiva of pressure.

Conventional power toothbrush can realize brushing directions to the greatest extent, and the detection for cavity interior then cannot realize, such as, cannot detect acid-base value, thus cannot provide support for the health of user.In addition, for the irregular tooth-brushing habit of user, also cannot point out, if things go on like this, easy gingiva be damaged.

Utility model content

Main purpose of the present utility model is to provide a kind of electric toothbrush, comprises passive main body rack, the driving device be configured on this main body rack, is configured in the brush that main body rack one end and this driving device assemble;

Described main body rack arranges a back shaft, and described driving device is assemblied on this main body rack by described back shaft, and the brush forming driving device and its assembling take back shaft as the lever construction of fulcrum;

Described main body rack is provided with circuit part, comprises:

For detect described driving device because brush is biased the sensor around the change in location of described back shaft;

Oral cavity acid-base value detecting unit;

The main control unit be electrically connected with described driving device, sensor, oral cavity acid-base value detecting unit.

By upper, the lever construction that it is fulcrum that described driving device and brush are formed with described back shaft, when described brush is applied in different pressures, according to lever principle, described driving device produces different rotational angles by around described back shaft, described sensor is made to produce different detected values thus, the size of the detected value produced by described sensor goes the pressure size judged suffered by brush, and this brush-head pressure detection architecture feeds back the size of brush-head pressure by the change of described driving device displacement.In addition, the situation of oral cavity acid-base value can also be detected simultaneously, can offer help for the oral cavity of user and the problem of brushing teeth.

Optionally, metal parts is provided with at described driving device away from the side of described back shaft;

Described sensor and described metal parts are oppositely arranged, and it induces different electrical signals as different detected value from described metal parts different distance.

Optionally, described sensor comprises inductance coil, the faradism inductance value digital converter be electrically connected with inductance coil, and this faradism inductance value digital converter outfan is electrically connected with described main control unit;

Described inductance coil just to described metal parts planographic on the circuit main board of described circuit part.

Optionally, described oral cavity acid-base value detecting unit comprises:

PH pops one's head in;

Discharge circuit, pops one's head in described PH and is electrically connected, for providing high resistant working environment to it;

Described main control unit is also connected with the outfan of described discharge circuit.

By upper,

Optionally, described driving device comprises electric-motor drive unit, the microseism motor be electrically connected with described electric-motor drive unit; Described electric-motor drive unit is electrically connected with described main control unit.

Optionally, also comprise wireless communication unit, be electrically connected with described main control unit.

Optionally, also comprise the power supply unit of powering for electric toothbrush, comprising:

Inductance coil;

Charging receiving circuit, is coupled with described inductance coil;

Charging detecting circuit, being connected with described charging receiving circuit, charging for judging whether, and judged result is transferred to described main control unit;

Battery, is connected with described charging receiving circuit;

Bleeder circuit, is connected with described battery.

Whether by upper, realize detecting for charging process, when charging, main control unit just can export out code, and electric toothbrush is no longer worked, thus ensures its Electrical Safety.

Optionally, also comprise memory module, be connected with described main control unit.

Accompanying drawing explanation

Fig. 1 is the top view of electric toothbrush;

Fig. 2 is the upward view of electric toothbrush;

Fig. 3 for along A-A shown in Fig. 1 to profile;

Fig. 4 is the partial enlarged drawing of electric toothbrush shown in Fig. 3;

The local oblique view that Fig. 5 is electric toothbrush shown in Fig. 3;

Fig. 6 is the structural representation of the PH sensor 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 faradism inductance value digital converter;

Figure 10 is the circuit diagram of PH detecting portion;

Figure 11 is main control unit circuit diagram;

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 circuit;

Figure 16 is the circuit diagram of 3V bleeder circuit;

Figure 17 is the circuit diagram of communication unit.

Detailed description of the invention

Referring to Fig. 1 ~ Figure 17, electric toothbrush described in the utility model is described in detail.

As shown in FIG. 1 to 3, electric toothbrush generally includes brush holder 1 and the brush 2 of split type setting.Brush holder 1 has a housing 11, the main body rack 12 that the axis along brush holder 1 is arranged is provided with in this housing 11, this main body rack 12 is integrally formed multiple separating part, and the spatial division surrounded by housing 11 by this multiple separating part provides the cavity 112 of activity space for the battery case 111 in order to install battery with in order to the driving device of receiving dress brush 2 for this driving device.The circuit main board 14 of electric toothbrush is installed in the side in contrast to battery case 111 and cavity 112 of main body rack 12, the main control unit 711 of electric toothbrush is provided with in described circuit main board 14, and connected drive part, pressure detecting part, PH detecting portion, on-off circuit and communication unit grade respectively, physical circuit will describe in detail later.The supply line be electrically connected with this circuit main board 14 is packaged with in aforementioned battery case 111; Be provided with in the end away from brush 2 of housing 11 and carry out with the battery thought in battery case 111 charging base 113 that charges.Multiple buttons 114 that the lower surface of housing 11 is provided with the on/off state and mode of operation controlling electric toothbrush form described on-off circuit 715, the button one_to_one corresponding that this multiple button 114 and circuit main board 14 are arranged.

In the present embodiment, drive part comprises electric-motor drive unit 720, and connected microseism motor 13 is formed.As shown in Figure 8, described electric-motor drive unit 720 adopts and comprises the motor drive ic realization that model is DRV8XXX series, the signal input port (nSLEEP, IN1, IN2) of this chip is connected with described main control unit 711, output port (OUT1, OUT2) connects described microseism motor 13, in figure, J6, J7 two interfaces are the interface knowing in motor 13 by force, electric-motor drive unit 720 is for driving microseism motor 13 to work according to the control instruction of main control unit 711, and described control instruction comprises rotary speed instruction and dormancy instruction.The metal framework 131 paralleled with the both sides up and down of microseism motor 13 is separately installed with in the both sides up and down of this microseism motor 13.Fix a back shaft 121 in the front end (namely near brush 2 one end) of main body rack 12, this back shaft 121 with through the length direction of brush holder 1 and the plane being perpendicular (namely back shaft 121 is arranged along the left and right directions shown in Fig. 3) at its above-below direction place.Aforementioned metal framework 131 and this back shaft 121 are rotationally connected, and make the microseism motor 13 be fixed on this metal framework 131 can produce rotation in small angle range relative to main body rack 12.Be close to back shaft 121 in the front end of main body rack 12 and be fixed with sealing block 122, the power transmission shaft 132 of microseism motor 13 runs through sealing block 122, housing 11 stretching out from the front side of this housing 11 along its length successively, and brush 2 is inserted on the aforementioned extension of power transmission shaft 132 usually.Usually offer the hole of stretching out for power transmission shaft 132 in the front side of housing 11, sealing block 122 is main in order to seal this hole, prevents electric toothbrush from use intaking and causes microseism motor 13 to damage.Describe in conjunction with aforementioned structure and can find out with reference to Fig. 3 and Fig. 4, the lever construction that it is fulcrum that microseism motor 13 and brush 2 define with back shaft 121.

Main body rack 12 is provided with an opening up stopper slot 123 near its rear end in abovementioned cavity 112, fills a spring 124 in this stopper slot 123 adduction.As shown in Figure 3 and Figure 4, metal framework 131 is primarily of the opposite U-shaped framework composition of two openings, the length direction be integrally formed respectively at the open rearward end place of these two U-shaped frameworks along brush holder 1 extends backwards and is close to the connecting portion 131a be set together, in order to the U-shaped metal framework being positioned at downside is conveniently defined as lower metal framework 131b by following description.Arrange in the rear end (namely away from the side of brush 2) of connecting portion 131a one overall in column and the limiting section 133 arranged down, be integrally formed a flange 133a in the bottom of this limiting section 133 and be positioned at below this flange 133a and along it axially towards the protruding 133b of downward-extension.The bottom of limiting section 133 is stretched in stopper slot 123, and wherein, flange 133a to be placed in stopper slot 123 and to abut against with spring 124, and protruding 133b stretches in spring 124.When metal framework 131 moves upward under microseism motor 13 drives, when flange 133a is locked on the opening part of stopper slot 123, metal framework 131 stops moving up.Position limit device described in the utility model is formed by aforementioned stopper slot 123 and limiting section 133, lower caging device described in the utility model is formed by spring 124, this spring 124 mainly has following effect: first, what can limit limiting section 133 as lower caging device moves downward scope, and then limits in the reasonable scope by limiting section 133; Second, when user applies different pressures to brush 2, according to lever principle, limiting section 133 will move downwardly to diverse location, then spring 124 is to this limiting section 133 by applying one restoring force, can guarantee that limiting section 133 can both be reset to following defined dead-center position place at every turn smoothly, so, the mobile route of metal framework 131 can be ensured, make the displacement of limiting section 133 and user institute applied pressure form a linear relationship; 3rd, when regulating brush 2 to be placed in following dead-center position by the rubber ring at brush place be applied to the deformation power of the lever construction be made up of microseism motor, make aforesaid lever structure be in stress balance position.

In addition, main body rack 12 arranges a planar portions 125 in the rear upper side of abovementioned cavity 112, this planar portions 125 just to setting, forms described in the utility model metal framework stopping means by this planar portions 125 with aforementioned stopper slot 123.In this utility model, as shown in Figure 3 and Figure 4, metal framework 131, be arranged on microseism motor 13 on this metal framework 131 and aforementioned limiting section 133 is common and brush 2 lever construction that to define with back shaft 121 be fulcrum, when brush 2 up/down moves, according to lever principle, metal framework 131, be arranged on microseism motor 13 on this metal framework 131 and aforementioned limiting section 133 downwards/move up.Metal framework 131 when electric toothbrush being in this utility model unused state, be arranged on the microseism motor 13 on this metal framework 131 and the natural place residing for aforementioned limiting section 133 is defined as dead-center position, when brush 2 is in this dead-center position, metal framework 131 will pop up under the effect of spring 124 deformation force, aforesaid plane portion 125 can stop metal framework 131 excessively movement upward, makes metal framework 131 remain on dead-center position by the restriction of this planar portions 125.

In this utility model, pressure detecting part is used for detecting relative to the displacement of inductance coil 719 above-mentioned metal framework 131b, to determine the dynamics of brushing teeth.The detailed description of the invention of pressure detecting part is as follows: on circuit main board 14, be provided with inductance coil 719 as shown in Figure 7 and connected faradism inductance value digital converter 718, wherein, inductance coil 719 to be located on circuit main board 14 and with aforementioned lower metal framework 131b be positioned at part below microseism motor 13 just to setting, the diameter of inductance coil 719 is 0.3mm, and the number of turn is 40.Shown by the experimental data in the design phase, when adopting the inductance coil 719 of above-mentioned diameter and the number of turn, its data gathered are the most responsive, and data variation amount is maximum.Shown in table 1 specific as follows, transverse axis represents the dynamics of brushing teeth, and vertical coordinate represents five kinds of brushing mode.

Table 1

As shown in Fig. 3 ~ Fig. 5, main body rack 12 offers the through hole 126 opposite with inductance coil 719, this through hole 126 is mainly inductance coil 719 and steps down, avoid the induced signal between lower metal framework 131b and inductance coil 719 stopped and disturb, and then guarantee the Detection results of inductance sensor.In this utility model, metallic conductor is formed by lower metal framework 131b, inductance coil 719 mainly responds to the change in value because of the inductive sensor caused by the change in displacement of lower metal framework 131b, because inductance coil 719 is used for detecting the change in displacement of lower metal framework 131b near downside setting but not the change in displacement at limiting section 133 or connecting portion 131a place, the displacement range that inductance coil 719 detects can be shortened, so can reduce parameter (comprising the number of turn and the number of plies) requirement to inductance coil 719, and then reduce the size of required inductance coil 719.Lower metal framework 131b microseism motor 13 drive under along close/away from the direction reciprocating movement of inductance coil 719, distance between this lower metal framework 131b and inductance coil 719 changes, the change in value of inductive sensor will be produced on inductance coil 719 because the distance between both changes, after this change in value carries out identification conversion by faradism inductance value digital converter 718, be sent to main control unit 711, as different detected value, received data are reflected that electric toothbrush user is applied to the pressure of brush 2 by main control unit 711, and then reflect dynamics size of brushing teeth.As shown in Figure 9, described faradism inductance value digital converter 718 adopt model be LDC1000 chip realize,

Adopt inductance sensor to realize being applied to for electric toothbrush user the detection of brush 2 pressure in the present embodiment, in addition, also can adopt other modes.Such as inductance sensor is replaced with infrared sensor, launch infrared ray by infrared sensor, judged distance according to infrared ray by the infra-red intensity that lower metal framework 131b reflects, thus realize the detection of dynamics of brushing teeth.When adopting infrared sensor, will be not limited to metal framework, any material of infrared ray that can hinder all can realize.

Or, capacitance sensor also can be adopted to realize, such as, inductance coil 719 is replaced with capacitance sensor fixed polar plate, lower metal framework 131b is replaced with capacitance sensor movable polar plate.Two pieces of pole plates are electrically connected a signal processing chip jointly, when the relative position of two-plate changes, its interelectrode capacity changes and forms differential capacitor, the change in voltage that signal processing chip detects this capacitance variations and causes, thus detects distance therebetween.

As shown in Figure 3, the upper surface of housing 11 is formed a recess, in this recess, is configured with PH detecting portion.As shown in Figure 3 and Figure 6, PH detecting portion comprises the base 115 being arranged on recess front end, the PH removably connected with this base 115 pop one's head in 712, be arranged on a shift knob 116 of recess rear end, be formed at switch enforcement division 117 integrally with this shift knob 116.Wherein, base 115 is rotationally connected by rotating shaft 115a and housing 11; The overall strip arranged in the length direction along brush holder 1 of PH probe 712, its front end is formed by connect-disconnect structure and base 115 and removably connects, and its rear end and shift knob 116 abut against.The appearance of base 115, PH probe 712 and shift knob 116 is identical with housing 11.

The left and right sides of base 115 are formed side to be respectively similar in inverted U-shaped locating slot 118, switch enforcement division 117 is the overall strip arranged in the length direction along brush holder 1 also, be symmetrically formed a pair linking arm 119 towards front upper place projection in the front end of this switch enforcement division 117, the front end of this pair linking arm 119 is placed in interior also both formation of aforementioned a pair locating slot 118 and is rotationally connected.The left and right sides wall of recess is also symmetrically formed a pair first screens and the second screens, and both are arranged along the orientated lengthwise of brush holder 1, wherein, first screens is positioned at the second screens rear, the position that first screens corresponding PH probe 712 is closed, the position that the corresponding PH probe 712 of the second screens is opened.Be integrally formed in the left and right sides of switch enforcement division 117 can with the fitting portion of aforementioned first screens and the second screens tabling.Open PH pop one's head in 712 time, user driven forward shift knob 116 makes switch enforcement division 117 move forward, until aforementioned fitting portion embeds in the second screens, in this process, linking arm 119 promotes base 115 and makes it upwards rotate around rotating shaft 115a, makes PH pop one's head in 712 by jack-up and upwards rotating opening.Close PH pop one's head in 712 time, user pulls back shift knob 116, switch enforcement division 117 is moved backward, until aforementioned fitting portion embeds in the first screens, in this process, linking arm 119 pulls base 115 and makes it rotate around rotating shaft 115a, PH is popped one's head in and 712 to rotate, until the rear end of PH probe 712 contacts with shift knob 116 and together with being connected to.

In addition, be also provided with pair of contact 115b in the front end of base 115, sealing block 122 shown in Fig. 3 and Fig. 5 is provided with a pair supporting contact matched with this pair of contact 115b, and this pair supporting contact is electrically connected with aforementioned circuit mainboard 14.Also be provided with a Magnet in the bottom of shift knob 116, in aforementioned recess in this Magnet just to locating encapsulation one Hall switch.When PH probe 712 is opened, shift knob 116 moves forward, make to be fixed on Magnet bottom shift knob 116 and Hall switch misplaces, thus produce potential difference, then the main control unit 711 to electric toothbrush is sent one and to pop one's head in PH and 712 start the corresponding signal of telecommunication by Hall switch.When PH probe 712 is opened completely, the PH pair of contact 115b of 712 front ends that pops one's head in is electrically connected with the supporting contact on sealing block 122, then PH pops one's head in and 712 to be formed with circuit main board 14 and be electrically connected.Otherwise when PH probe 712 is closed, PH probe 712 disconnects with the electrical connection of circuit main board 14; Meanwhile, shift knob 116 moves backward, and the Magnet be fixed on bottom shift knob 116 is aimed at Hall switch, then the main control unit 711 to electric toothbrush is sent one and to pop one's head in PH and 712 close the corresponding signal of telecommunication by Hall switch.

Figure 10 shows that the circuit diagram of PH detecting portion in the present embodiment.Comprise the PH probe 712, amplifier unit 713 and the boosting unit 714 that connect successively.

In the present embodiment, described PH probe 712 comprises an indicating electrode port and a reference electrode port.Its dead-center position of indicating electrode port is PH7, and the ionic activity in its electrode potential and saliva is linear, thus detects intraoral acid-base value.

Based on this, amplifier unit 713 comprises the first discharge circuit and the second discharge circuit, and a port of popping one's head in PH is respectively connected, and provides high resistant environment for two ports of popping one's head in PH, forms two high impedance input circuit.Because the internal resistance of PH probe is very high, therefore requires that preamplifier has higher input impedance, thus strengthen capacity of resisting disturbance, avoid other the signal of telecommunication to have an impact to it.

Concrete, the first discharge circuit comprises the circuit that model is TLV221 chip, and its positive input mouth IN+ is connected with the reference electrode port that described PH pops one's head in, and after reverse input end mouth IN-is connected with output port OUT, exports reference electrode data as outfan.

Second discharge circuit comprises the circuit that model is TLV22541 chip, and after its first reverse input end mouth 3IN-is connected with the first output port 3OUT, the indicating electrode port of popping one's head in described PH is connected,

Second positive input mouth 1IN+ is connected with the outfan of the first discharge circuit, receives reference electrode data.

In the present embodiment circuit, on the circuit that first, second discharge circuit is connected with two ports that PH pops one's head in, be also provided with the electric capacity for filtering.

TLV22541 chip calculates the potential difference of indicating electrode and reference electrode, namely oral cavity acid-base value data are represented, main control unit 711 is exported to by output port, namely after the second reverse input end mouth 1IN-of the chip of TLV22541 described in Figure 10 is connected with the second output port OUT, as outfan, export the potential difference of indicating electrode and reference electrode, represent that the data of oral cavity acid-base value are to main control unit 711.

Further, the voltage range gathered due to PH probe 712 is-500mv ~ 500mv, and the voltage range that the master chip in main control unit 711 can read is at-500mv ~ 657mv.Therefore, need after the first positive input mouth is connected with the RC circuit of two groups of parallel connections ground connection.The object that foregoing circuit connects is, as boosting unit 714, by this port " virtual earth ", processes, so that the master chip in main control unit 711 can read to carry out boosting to the potential difference of indicating electrode and reference electrode.

In addition, described first discharge circuit also comprises with in the second discharge circuit the circuit be connected with power pack, because it belongs to common linking techniques, repeats no more.

Fig. 7 is the circuit theory diagrams of electric toothbrush, as shown in Figure 7, the main control unit 711 being arranged on circuit main board 14 addressed before the electric-control system of electric toothbrush mainly comprises, and the pressure detecting part be connected with main control unit 711 respectively, the PH namely connected successively as mentioned above probe 712, amplifier unit 713 and boosting unit 714; PH detecting portion, the inductance coil 719 namely connected successively as mentioned above and faradism inductance value digital converter 718; Drive part, i.e. interconnective electric-motor drive unit 720 described above and microseism motor 13; On-off circuit 715.In addition, the power supply unit 722, LED array 716 and the communication unit 717 that are connected with main control unit 711 is also comprised.As shown in figure 11, the main control unit 711 in the present embodiment adopt model be N51822 chip realize.

As shown in figure 12, electric unit 722 comprises the charging receiving circuit connected successively, and distinguishes connected bleeder circuit and charging detecting circuit.

Described bleeder circuit is used for the 7V voltage that charging receiving circuit receives being transferred to the 3V voltage needed for electric toothbrush inside and 5V voltage.When described charging detecting circuit is for judging that charging receiving circuit charges, export the notification carrying out charging to main control unit 711, after main control unit 711 receives above-mentioned information, learn that electric toothbrush is charged, thus output order controls to close all functions, in case leak-stopping is electric.

As shown in figure 13, described charging receiving circuit comprises the charging receptor realization that model is BQ5105xB.

As shown in figure 14, charging detecting circuit is connected with the output port of charging receiving circuit, when there being the signal of telecommunication to input, exports main control unit 711 after the signal of telecommunication being entered dividing potential drop to.

As shown in figure 15,5V bleeder circuit comprises the chip realization that model is APW7137; As shown in figure 16,3V bleeder circuit comprises the chip realization that model is TPS7XX series.

As shown in figure 17, communication unit 717 adopts Bluetooth technology, and after above-mentioned detected brushing pressure degrees of data and/or oral cavity acid-base value data are carried out Bluetooth modulation, the intelligent mobile phone terminal to user exports, so that user checks.

In addition, also comprise memory element (not shown), be connected with described main control unit 711, for storing the brushing pressure degrees of data and oral cavity acid-base value data that main control unit 711 receives.

Describe below in conjunction with said structure and circuit theory and the operation principle of electric toothbrush described in the utility model is described simply.

When utilizing electric toothbrush to brush teeth, the start button that first user presses housing 11 surface makes microseism motor 13 start, and then is applied to brush 2 one pressure, and this pressure will control the contact dynamics of brush bristle and user dental surface.Aforementioned pressure causes brush 2 up/down to move, lower metal framework 131b up/down certainly will be made to move according to lever drive principle, the movement of this lower metal framework 131b makes the distance between itself and inductance coil change, and then produces different induction value on inductance coil 719.Aforementioned different induction value is identified by faradism inductance value digital converter 718 and changes into the receptible signal of main control unit 711 and this signal is sent to main control unit 711.Main control unit 711 pairs of aforementioned signal carry out analysis and judge, remind user adjustment to brush teeth dynamics if brush 2 pressure is improper.Alerting pattern can comprise voice or light flash etc., and corresponding also comprises speaker or LED group, specifically repeats no more.

When utilizing the PH detecting portion of electric toothbrush to detect intraoral acid-base value, user driven forward shift knob 116, then PH probe 712 upwards rotating opening; When PH probe 712 is opened completely, the PH probe pair of contact 115b of 712 is electrically connected with the supporting contact on sealing block 122, then PH probe 712 is formed with circuit main board 14 and is electrically connected.Meanwhile, be fixed on Magnet bottom shift knob 116 and Hall switch misplaces, then the main control unit 711 to electric toothbrush is sent one and to pop one's head in PH and 712 start the corresponding signal of telecommunication by Hall switch.The information that PH probe 712 detects finally is sent on main control unit 711 by the analyzing and processing of amplifier unit 713 and boosting unit 714 successively, and main control unit 711 is analyzed this information and provided related guidance according to the mouth care of this information to user.In addition, the data wireless of described detection also to be exported to the intelligent terminal of user by main control unit 711 for controlling communication unit 717.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Such as, in the above-described embodiments, brush for electric toothbrush carries out work by vibration under microseism motor 13 drives, be oscillating mode electric toothbrush, but not limited thereto, electric toothbrush also can be rotation electric toothbrush, and namely brush carries out work by rotating.

Again such as, in the above-described embodiments, sensor is the inductance sensor comprising inductance coil, but not limited thereto, the one of described sensor also in pressure sensor/electrical distance sensor/range sensor etc.

Claims (8)

1. an electric toothbrush, comprises passive main body rack, the driving device be configured on this main body rack, is configured in the brush that main body rack one end and this driving device assemble; It is characterized in that,

Described main body rack arranges a back shaft, and described driving device is assemblied on this main body rack by described back shaft, and the brush forming driving device and its assembling take back shaft as the lever construction of fulcrum;

Described main body rack is provided with circuit part, comprises:

For detect described driving device because brush is biased the sensor around the change in location of described back shaft;

Oral cavity acid-base value detecting unit;

The main control unit be electrically connected with described driving device, sensor, oral cavity acid-base value detecting unit.

2. electric toothbrush according to claim 1, is characterized in that, is provided with metal parts at described driving device away from the side of described back shaft;

Described sensor and described metal parts are oppositely arranged, and it induces different electrical signals as different detected value from described metal parts different distance.

3. electric toothbrush according to claim 2, is characterized in that, described sensor comprises inductance coil, the faradism inductance value digital converter be electrically connected with inductance coil, and this faradism inductance value digital converter outfan is electrically connected with described main control unit;

Described inductance coil just to described metal parts planographic on the circuit main board of described circuit part.

4. electric toothbrush according to claim 1, is characterized in that, described oral cavity acid-base value detecting unit comprises:

PH pops one's head in;

Discharge circuit, pops one's head in described PH and is electrically connected, for providing high resistant working environment to it;

Described main control unit is also connected with the outfan of described discharge circuit.

5. electric toothbrush according to claim 1, is characterized in that, described driving device comprises electric-motor drive unit, the microseism motor be electrically connected with described electric-motor drive unit; Described electric-motor drive unit is electrically connected with described main control unit.

6. electric toothbrush according to claim 1, is characterized in that, also comprises wireless communication unit, is electrically connected with described main control unit.

7. electric toothbrush according to claim 1, is characterized in that, also comprises the power supply unit of powering for electric toothbrush, comprising:

Inductance coil;

Charging receiving circuit, is coupled with described inductance coil;

Charging detecting circuit, being connected with described charging receiving circuit, charging for judging whether, and judged result is transferred to described main control unit;

Battery, is connected with described charging receiving circuit;

Bleeder circuit, is connected with described charging receiving circuit by charging detecting circuit, for institute's receiver voltage is carried out voltage division processing.

8. electric toothbrush according to claim 1, is characterized in that, also comprises memory module, is connected with described main control unit.