CN112972042A

CN112972042A - Electric toothbrush

Info

Publication number: CN112972042A
Application number: CN201911272158.3A
Authority: CN
Inventors: 闻钊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2021-06-18

Abstract

The invention discloses an electric toothbrush, which comprises a brush holder shell, wherein a first touch area and a second touch area are arranged on a brush holder shell body; the inner wall of the brush handle shell is provided with a wakeup induction sheet corresponding to the position of the first touch area and a sliding induction sheet corresponding to the position of the second touch area; the brush holder shell is internally provided with the motor and the control panel, when a hand touches the first touch area, the awakening induction sheet can induce a touch signal to awaken the control panel, when the hand slides in the second touch area, the sliding induction sheet can induce a sliding action to control the vibration amplitude and frequency of the motor by the control panel, so that a touch function is realized on the electric toothbrush without using keys.

Description

Electric toothbrush

Technical Field

The invention relates to articles for daily use, in particular to an electric toothbrush.

Background

With the continuous development of technology and the improvement of living standard, the electric toothbrush with power drive is more and more widely applied. The power-driven electric toothbrush drives the physical movement of the toothbrush through the vibrator to help people to more efficiently finish various activities of cleaning the oral cavity and whitening teeth, and improve the tooth brushing effect.

The existing electric toothbrush has various movable tuft blocks, tooth cleaning elements are mounted on the tuft blocks, the movable tuft blocks are driven by an electric motor, a plurality of key switches are arranged on a handle of the toothbrush for controlling the opening and closing of the motor and the adjustment of working modes and gears, however, keys have service lives, the hand feeling at the key positions is not good, and waterproof measures need to be made sufficiently well, otherwise, the risk of electric leakage occurs. Touch keys on the market are widely applied to electronic products, but are not applied to electric toothbrushes.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an electric toothbrush, which can wake up the toothbrush and adjust the gear by touch control.

In order to achieve the purpose, the invention adopts the following technical scheme: an electric toothbrush comprises a toothbrush holder shell, wherein a first touch area for receiving a wake-up instruction and a second touch area for receiving a gear adjustment instruction are arranged on a toothbrush holder shell body; the inner wall of the brush handle shell is provided with a wakeup induction sheet corresponding to the position of the first touch area and a sliding induction sheet corresponding to the position of the second touch area; the toothbrush handle shell is internally provided with a motor for driving the toothbrush head to vibrate and a control panel for starting when receiving a wake-up command and adjusting the gear of the motor when receiving a gear adjusting command; the motor, the awakening induction piece and the sliding induction piece are all connected with the motor.

In the electric toothbrush, the awakening induction sheet is annular.

In the electric toothbrush, the first touch area and the awakening induction sheet are positioned at the lower part of the brush holder shell, and the second touch area and the sliding induction sheet are positioned at the upper part of the brush holder shell.

The electric toothbrush also comprises a toothbrush head, one end of the toothbrush head extends out of the brush handle shell, and the other end of the toothbrush head is connected with the motor.

Electric toothbrush in, the control panel includes touch-control unit, vibration frequency regulating unit, gear touch key-type connection interface and awakens up the key-type connection interface, awakens up the key-type connection interface and awakens up the response piece electricity and be connected, gear touch key-type connection interface is connected with the slip response piece electricity, awakens up and makes touch-control unit awaken up when response piece response awakens up the instruction, when the slip response piece responds to the gear regulating instruction, drive vibration frequency and the range of vibration frequency regulating unit regulating motor.

In the electric toothbrush, the touch unit comprises a touch chip and a first capacitor, pins PE4/OSC1 of the touch chip are grounded through the first capacitor, pins PC0/KEY5 of the touch chip are connected with a1 st pin of the gear touch KEY connection interface, pins PC1/KEY6 of the touch chip are connected with a 2 nd pin of the gear touch KEY connection interface, pins PC2/KEY7 of the touch chip are connected with a 3 rd pin of the gear touch KEY connection interface, pins PC3/KEY8 of the touch chip are connected with a4 th pin of the gear touch KEY connection interface, and pins PE0/KEY9 of the touch chip are connected with a 2 nd pin of the wake KEY connection interface.

The electric toothbrush, the touch control unit further comprises a first indicator light, a second indicator light, a third indicator light, a fourth indicator light, a fifth indicator light, a sixth indicator light, a seventh indicator light, AN eighth indicator light, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, AN eighth resistor and a first triode, wherein the cathode of the first indicator light is connected with the PA4/XT2 pin of the touch control chip, the anode of the first indicator light is connected with the 3.3V power supply end through the first resistor, the cathode of the second indicator light is connected with the PB3/RX/AN3 pin of the touch control chip, the anode of the second indicator light is connected with the 3.3V power supply end through the second resistor, the cathode of the third indicator light is connected with the PB2/TX/AN2 pin of the touch control chip, the anode of the third indicator light is connected with the 3.3V power supply end through the third resistor, and the cathode of the fourth indicator light is connected with the AN 7/AN 7 pin of the touch control chip, the positive electrode of the fourth indicator light is connected with the 3.3V power supply end through a fourth resistor, the negative electrode of the fifth indicator light is connected with the PB1/SCK/AN1 pin of the touch chip, the positive electrode of the fifth indicator light is connected with the 3.3V power supply end through a fifth resistor, the negative electrode of the sixth indicator light is connected with the PB4/AN 4pin of the touch chip, the positive electrode of the sixth indicator light is connected with the 3.3V power supply end through a sixth resistor, the negative electrode of the seventh indicator light is connected with the PB5/AN5 pin of the touch chip, the positive electrode of the seventh indicator light is connected with the 3.3V power supply end through a seventh resistor, the positive electrode of the eighth indicator light is connected with the 3.3V power supply end, the negative electrode of the eighth indicator light is connected with the collector electrode of the first triode through AN eighth resistor, the base electrode of the first triode is connected with the PE3/KEY12 pin of the touch chip through a ninth resistor, and the emitter of. In the electric toothbrush, the vibration frequency adjusting unit includes: the base electrode of the second triode is connected with a PA1/CTP0 pin of the touch chip through the tenth resistor, the emitter electrode of the second triode is grounded, the collector electrode of the second triode is connected with the grid electrode of the first MOS tube and one end of the thirteenth resistor through the twelfth resistor, the source electrode of the first MOS tube and the other end of the thirteenth resistor are connected with a VCC power supply end, the drain electrode of the first MOS tube is connected with the positive electrode of the motor and the drain electrode of the second MOS tube and is further grounded through the second capacitor, the source electrode of the second MOS tube is grounded, the grid electrode of the second MOS tube is connected with a PE5/OSC2 pin of the touch chip through the fifteenth resistor, The base electrode of the third triode is connected with a PA7/CTP1 pin of the touch chip through an eleventh resistor, the emitter electrode of the third triode is grounded, the collector electrode of the third triode is connected with the grid electrode of the third MOS tube and one end of a seventeenth resistor through a sixteenth resistor, the source electrode of the first MOS tube and the other end of the seventeenth resistor are connected with a VCC power supply end, the drain electrode of the third MOS tube is connected with the negative electrode of the motor and the drain electrode of the fourth MOS tube and is further grounded through a third capacitor, the source electrode of the fourth MOS tube is grounded, and the grid electrode of the fourth MOS tube is connected with a PA5/CTP0B pin of the touch chip through an eighteenth resistor and is also grounded through a nineteenth resistor.

The electric toothbrush further comprises a voltage stabilizing unit, and the voltage stabilizing unit comprises: LDO linear steady voltage chip, fourth electric capacity, fifth electric capacity, sixth electric capacity, seventh electric capacity, eighth electric capacity, twentieth resistance, twenty first resistance and inductance, the battery positive pole and the VCC supply end of electric toothbrush are connected to the VIN foot of LDO linear steady voltage chip, and the PB6/AN6 end and the one end of twenty first resistance through the twentieth resistance connection touch-control chip also through fourth electric capacity ground connection, and through fifth electric capacity ground connection, still through sixth electric capacity ground connection, the VDD end of VOUT end through inductance connection touch-control chip, also through seventh electric capacity ground connection, still through eighth electric capacity ground connection.

The electric toothbrush further comprises a wireless charging unit, the wireless charging unit comprises a charging management chip, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a fourth triode, a ninth indicator light and a diode, a VCC pin of the charging management chip is connected with one end of the twenty-third resistor and the anode of the ninth indicator light, the cathode of the ninth indicator light is connected with a CHRG pin of the charging management chip through the twenty-sixth resistor, the other end of the twenty-third resistor is connected with the cathode of the diode and one end of the tenth capacitor, a CE pin of the charging management chip and one end of the twenty-eighth resistor are also connected through the twenty-twelfth resistor, and a PA6/INT0 pin of the touch control chip and one end of the twenty-fifth resistor are also connected through the twenty-fourth resistor, the anode of the diode is connected with the IN5V + end and is grounded through a ninth capacitor, the other end of the tenth capacitor is grounded with the other end of the twenty-fifth resistor, the other end of the twenty-fifth resistor is connected with the collector of the fourth triode, the base of the fourth triode is connected with the PB0/SDA/AN0 pin of the touch chip through the twenty-ninth resistor, the BAT pin of the charging management chip is connected with the VCC power supply end and is grounded through the eleventh capacitor and the twelfth capacitor, and the PROG2 pin of the charging management chip is grounded through the twenty-seventh resistor.

Compared with the prior art, the electric toothbrush provided by the invention comprises a brush holder shell, wherein a first touch area and a second touch area are arranged on a brush holder shell body; the inner wall of the brush handle shell is provided with a wakeup induction sheet corresponding to the position of the first touch area and a sliding induction sheet corresponding to the position of the second touch area; the brush holder shell is internally provided with the motor and the control panel, when a hand touches the first touch area, the awakening induction sheet can induce a touch signal to awaken the control panel, when the hand slides in the second touch area, the sliding induction sheet can induce a sliding action to control the vibration amplitude and frequency of the motor by the control panel, so that a touch function is realized on the electric toothbrush without using keys.

Drawings

Fig. 1 is a schematic front view of an electric toothbrush according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an electric toothbrush according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of the electric toothbrush provided by the embodiment of the present invention with the handle housing removed.

Fig. 4 is a schematic circuit diagram of a touch unit in an electric toothbrush according to an embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of a vibration frequency adjusting unit in the electric toothbrush according to the embodiment of the present invention.

Fig. 6 is a schematic circuit diagram of a voltage regulator unit in the electric toothbrush according to the embodiment of the present invention.

Fig. 7 is a schematic circuit diagram of a wireless charging unit in an electric toothbrush according to an embodiment of the present invention.

Detailed Description

The present invention provides an electric toothbrush, which will be described in further detail below with reference to the accompanying drawings and examples in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2 and 3, the electric toothbrush provided by the invention includes a brush holder housing 1, wherein a first touch area 2 for receiving a wake-up command and a second touch area 3 for receiving a power-off command and a gear adjustment command are disposed on a body of the brush holder housing 1; the inner wall of the brush holder shell 1 is provided with a wakeup induction sheet 4 corresponding to the position of the first touch area 2 and a sliding induction sheet 5 corresponding to the position of the second touch area 3; the toothbrush handle shell 1 is internally provided with a motor M for driving the toothbrush head to vibrate and a control panel 6 for starting when receiving a wake-up command and adjusting the gear of the motor M when receiving a gear adjusting command. The motor M, the awakening induction sheet 4 and the sliding induction sheet 5 are all connected with the motor M.

In this embodiment, because no button is needed, the first touch area 2 can adopt a color different from that of the brush holder housing 1 to indicate that it is a touch area, when the human hand touches the first touch area 2, the wakeup induction sheet 4 enables to sense a touch signal, so that the control panel 6 wakes up, when the human hand slides in the second touch area 3, the slide induction sheet 5 can sense a sliding action, so that the control panel 6 controls the vibration amplitude and frequency of the motor M, thereby realizing a touch function on the electric toothbrush without using a button.

In this embodiment, the waking up sensing piece 4 is ring-shaped, can surround the inner wall of the brush holder housing 1 for a circle, and can be located at the lower part of the brush holder housing 1, so that when the lower part of the brush holder is held by a hand, a touch signal can be sensed to wake up the control board 6. In this embodiment, the wake-up sensing piece 4 is a metal ring.

Referring to fig. 1 to 3 again, the first touch area 2 and the wake-up sensing piece 4 are located at the lower part of the handle casing 1, and the second touch area 3 and the sliding sensing piece 5 are located at the upper part of the handle casing 1. The second touch region 3 is formed in an elongated shape and the slide sensing sheet 5 is formed in a sheet shape so as to be convenient for sensing a slide operation instruction of a user. The sliding induction sheet 5 is a metal induction sheet.

One end of the toothbrush head extends out of the toothbrush handle shell 1, the other end of the toothbrush head is connected with the motor M, a mounting hole is formed in the joint of the toothbrush handle shell 1 and the toothbrush head, and the other parts of the toothbrush head are of a closed hollow structure and are used for preventing water and electricity leakage. In this embodiment, a waterproof ring is arranged at the joint of the brush holder shell 1 and the toothbrush head, so that the waterproof performance is further improved.

Referring to fig. 4, in the electric toothbrush of the present invention, the control board 6 includes a touch unit, a vibration frequency adjusting unit, a gear touch key connection interface J1 and a wake-up key connection interface J2, the wake-up key connection interface J2 is electrically connected to the wake-up sensing piece 4, the gear touch key connection interface J1 is electrically connected to the sliding sensing piece 5, the touch unit is waken up when the wake-up sensing piece 4 senses a wake-up command, and the vibration frequency adjusting unit is driven to adjust the vibration frequency and amplitude of the motor M when the sliding sensing piece 5 senses a gear adjusting command. The gear touch key connection interface J1 and the wake-up key connection interface J2 both adopt 4Pin _ FPC, and can adopt FPC or flat cable to be electrically connected with the sliding induction sheet 5 and the wake-up induction sheet 4.

In touch judgment, the invention also determines by adopting the capacitance change range value, and senses different touch signals when the capacitance change range is equal to the change time so as to prevent the phenomenon of touch failure caused by the fact that the hands of people are wetted. For example, if a capacitor is formed between a human hand and a metal sheet, the human hand is only required to hold the shell at the corresponding metal sheet, and then a signal is formed by calculating the existence time or sequence of the capacitor. At the time of waking: starting timing when the user holds the electric tool for more than 4 seconds, and determining the electric tool to be started; when the gears are switched: by sliding from top to bottom, a signal from top to bottom or from bottom to top is detected in a very short time, switching different gears.

In the existing touch control design, water can be sprayed on the shell during tooth brushing, the capacity value can change greatly and is easy to fail.

Referring to fig. 4, the touch unit includes a touch chip U1 and a first capacitor C1, a pin PE4/OSC1 of the touch chip U1 is grounded through the first capacitor C1, a pin PC0/KEY5 of the touch chip U1 is connected to a1 st pin of the shift-position touch KEY connection interface J1, a pin PC1/KEY6 of the touch chip U1 is connected to a 2 nd pin of the shift-position touch KEY connection interface J1, a pin PC2/KEY7 of the touch chip U1 is connected to a 3 rd pin of the shift-position touch KEY connection interface J1, a pin PC3/KEY8 of the touch chip U1 is connected to a4 th pin of the shift-position touch KEY connection interface J1, and a pin PE0/KEY9 of the touch chip U1 is connected to a 2 nd pin of the wake KEY connection interface J2. The touch chip U1 employs the latest capacitive touch control processor of the alloy corporation of taiwan, and the specific model may employ BS66F 340. The software program is downloaded through T1-T4.

The touch unit further comprises a first indicator light D1, a second indicator light D2, a third indicator light D3, a fourth indicator light D4, a fifth indicator light D5, a sixth indicator light D6, a seventh indicator light D7, an eighth indicator light D8, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a first triode Q1. Among first pilot lamp D1, second pilot lamp D2, the third pilot lamp D3, one is for awakening the lamp, and two are the quantity of electricity pilot lamp, eight pilot lamp D8 double-colored breathing lamp is company LOGO pilot lamp. The fourth indicator light D4, the fifth indicator light D5, the sixth indicator light D6 and the seventh indicator light D7 are shift indicator lights, and indicate the operating position of the motor M according to lighting data of the shift indicator lights.

The negative pole of the first indicator light D is connected with the PA/XT pin of the touch chip U, the positive pole of the first indicator light D is connected with the 3.3V power supply end through the first resistor R, the negative pole of the second indicator light D is connected with the PB/RX/AN pin of the touch chip U, the positive pole of the second indicator light D is connected with the 3.3V power supply end through the second resistor R, the negative pole of the third indicator light D is connected with the PB/TX/AN pin of the touch chip U, the positive pole of the third indicator light D is connected with the 3.3V power supply end through the third resistor R, the negative pole of the fourth indicator light D is connected with the PB/INT 1AN pin of the touch chip U, the positive pole of the fourth indicator light D is connected with the 3.3V power supply end through the fourth resistor R, the negative pole of the fifth indicator light D is connected with the PB/SCK/AN pin of the touch chip U, the positive pole of the fifth indicator light D is connected with the 3.3V power supply end through the fifth resistor R, and the negative pole of the PB/AN pin of the sixth, the anode of the sixth indicator light D6 is connected to the 3.3V power supply terminal through a sixth resistor R6, the cathode of the seventh indicator light D7 is connected to the PB5/AN5 pin of the touch chip U1, the anode of the seventh indicator light D7 is connected to the 3.3V power supply terminal through a seventh resistor R7, the anode of the eighth indicator light D8 is connected to the 3.3V power supply terminal, the cathode of the eighth indicator light D8 is connected to the collector of the first triode Q1 through AN eighth resistor R8, the base of the first triode Q1 is connected to the PE3/KEY12 pin of the touch chip U1 through a ninth resistor, and the emitter of the first triode Q1 is grounded.

Referring to fig. 5, the vibration frequency adjusting unit includes: the circuit comprises a second triode Q2, a third triode Q3, a first MOS transistor Q4, a second MOS transistor Q5, a third MOS transistor Q6, a fourth MOS transistor Q7, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a second capacitor C2 and a third capacitor C3. The second triode Q2 and the third triode Q3 are both NPN triodes, the first MOS transistor Q4 and the third MOS transistor Q6 are PMOS transistors, and the second MOS transistor Q5 and the fourth MOS transistor Q7 are N MOS transistors. The frequency and the amplitude of the motor M are controlled by controlling the conduction states of the second triode Q2, the third triode Q3, the second MOS tube Q5 and the fourth MOS tube Q7, so that the electric toothbrush is in different working modes.

The base of the second transistor Q2 is connected to the PA1/CTP 1 pin of the touch chip U1 through a tenth resistor R10, the emitter of the second transistor Q1 is grounded, the collector of the second transistor Q1 is connected to the gate of the first MOS transistor Q1 and one end of a thirteenth resistor R1 through a twelfth resistor R1, the source of the first MOS transistor Q1 and the other end of the thirteenth resistor R1 are connected to the VCC power supply terminal, the drain of the first MOS transistor Q1 is connected to the positive electrode of the motor M and the drain of the second MOS transistor Q1, and is also connected to the ground through a second capacitor C1, the source of the second MOS transistor Q1 is grounded, the gate of the second MOS transistor Q1 is connected to the PE 1/OSC 1 pin of the touch chip U1 through a fifteenth resistor R1, and is also connected to the ground through a fourteenth resistor R1, the base of the third transistor Q1 is connected to the PA1/CTP 1 of the touch chip U1 through an eleventh resistor R1, the collector of the sixteenth transistor Q1 is connected to the emitter of the collector of the sixteenth resistor R1 and the collector of the transistor Q1, the emitter of the transistor Q1 is connected to the emitter 36 One end of the first MOS transistor Q4, the source of the first MOS transistor Q4, the other end of the seventeenth resistor R17, the drain of the third MOS transistor Q6, the negative electrode of the motor M, the drain of the fourth MOS transistor Q7, the third capacitor C3, the source of the fourth MOS transistor Q7, the gate of the fourth MOS transistor Q7, the eighteenth resistor R18, the PA5/CTP0B of the touch chip U1, and the nineteenth resistor R19 are connected to ground.

When the pin PA1/CTP0 of the touch chip U1 and the pin PA7/CTP1 of the touch chip U1 output high levels, the second triode Q2, the third triode Q3, the first MOS transistor Q4 and the third MOS transistor Q6 are all turned on, and when the pin PE5/OSC2 of the touch chip U1 and the pin PA5/CTP0B of the touch chip U1 output high levels, the second MOS transistor Q5 and the fourth MOS transistor Q7 are turned on.

Referring to fig. 6, the electric toothbrush according to the embodiment of the present invention further includes a voltage stabilizing unit, where the voltage stabilizing unit includes: the LDO linear voltage regulation circuit comprises an LDO linear voltage regulation chip U2, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a twentieth resistor R20, a twenty-first resistor R21 and an inductor L1. The model of the LDO linear voltage regulation chip U2 is XC06P332MR, and the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 are all filter capacitors.

The VIN pin of the LDO linear voltage regulation chip U2 is connected with the battery anode and the VCC power supply end of the electric toothbrush, and is connected with the PB6/AN6 end of the touch chip U1 and one end of the twenty-first resistor R21 through the twentieth resistor R20, and is also grounded through the fourth capacitor C4, the fifth capacitor C5 and the sixth capacitor C6, the VOUT end of the touch chip U1 is connected with the VDD end of the touch chip U1 through the inductor L1, is also grounded through the seventh capacitor C7 and is also grounded through the eighth capacitor C8.

When the electric toothbrush is started, the battery supplies power energy required by the product during working, the voltage output by the electrons is subjected to voltage conversion and voltage stabilization processing through the LDO linear voltage stabilization chip U2, the VOUT end of the touch control chip U1 is a 3.3V power supply end, 3.3V voltage is output, and the voltage is filtered by the seventh capacitor C7 and the eighth capacitor C8 to supply power to the touch control chip U1 and the eighth indicator lamp.

Referring to fig. 7, the electric toothbrush according to the embodiment of the present invention further includes a wireless charging unit, where the wireless charging unit includes a charging management chip U3, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a twenty-eighth resistor R28, a twenty-ninth resistor R29, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, a fourth triode Q8, a ninth indicator light D9, and a diode D10. The model of the charging management chip U3 is TP4056, and the fourth triode Q8 is an NPN triode. The ninth indicator light D9 is a red LED for indicating the charging status.

A VCC pin of the charging management chip U3 is connected to one end of a twenty-third resistor R23 and a positive electrode of a ninth indicator light D9, a negative electrode of the ninth indicator light D9 is connected to a CHRG pin of the charging management chip U3 through a twenty-sixth resistor R26, another end of a twenty-third resistor R23 is connected to a negative electrode of a diode D10 and one end of a tenth capacitor C10, and is also connected to a CE pin of the charging management chip U3 and one end of a twenty-eighth resistor R28 through a twenty-twelfth resistor R22, and is also connected to a PA 24/INT 24 pin of the touch chip U24 and one end of a twenty-fifth resistor R24 through a twenty-fourteenth resistor R24, AN positive electrode of the diode D24 is connected to AN IN5 + terminal, and is also connected to ground through a ninth capacitor C24, another end of the tenth capacitor C24 and another end of the twenty-fifth resistor R24 are connected to ground, another end of the twenty-fifth resistor R24 is connected to the collector PB of the fourth triode 24, and the collector of the fourth triode 24 is connected to the ninth triode 24 a triode 24/AN n 24, the BAT pin of the charging management chip U3 is connected to the VCC power supply terminal, and is also grounded through the eleventh capacitor C11 and the twelfth capacitor C12, and the PROG2 pin of the charging management chip U3 is grounded through the twenty-seventh resistor R27.

The electric toothbrush adopts a wireless charging mode to charge the battery, so that the battery stores electric energy to achieve the working electric quantity required by the toothbrush. The wireless charging mode adopts AN electromagnetic induction principle, energy is transferred by energy coupling through a coil, coupled 5V alternating current is rectified by a diode D10 and then input into a charging management chip U3, a BAT pin of the charging management chip U3 outputs charging voltage and charging current to charge a battery, a PB0/SDA/AN0 pin of the touch control chip U1 outputs high level to conduct a fourth triode Q8 during charging, a CHRG pin of the charging management chip U3 outputs low level to enable a second indicator lamp D2 to be turned on.

The operation of the electric toothbrush of the present invention will be described in detail with reference to fig. 1 to 7 as follows: the electric toothbrush is completed by detecting and controlling the vibration frequency and amplitude of the magnetic vibration motor through a software program: a whitening mode, a cleaning mode, a relieving mode and a massage mode.

The sliding induction sheet 5 and the awakening induction sheet 4 are tightly attached to the inner wall of the brush holder shell 1 and used for inducing a touch signal. The user realizes that the touch chip U1 controls different tooth brushing working modes through touching the surface of the toothbrush shell, achieves the purpose that the use can meet different tooth brushing requirements, and has LED indication display of the working modes. When no action is performed, the touch chip U1 is in a low power sleep state, and when the user holds the lower portion of the handle housing 1, the wake-up sensor 4 senses a signal, so that the touch chip U1 is activated to be in an operable state.

The sliding induction sheet 5 is a sliding block touch KEY composed of four touch KEYs KEY1, KEY2, KEY3 and KEY4, when a human finger touches a KEY of a product shell, an electric field and high-frequency capacitance exist between the human finger and the shell, a current signal is transmitted to the sliding induction sheet 5 in the shell inner surface through capacitance coupling, and after the touch chip U1 detects the signal, corresponding work is executed through the touch chip U1 software algorithm processing, such as: the system comprises the following steps of starting and stopping the machine, adjusting gears, displaying signals of LED lamps, managing battery charging and the like.

When the finger slides downwards, the switch-on and switch-off signals are sent, when the finger slides upwards from the lower end, the four gear adjustment steps of tooth brushing are adjusted, each time the finger slides, one gear is adjusted, and the toothbrush rotates according to the four gear adjustment steps in sequence (when the finger slides for the fifth time, the toothbrush rotates to the first gear.)

In conclusion, the electric toothbrush is not provided with the keys, and the hidden danger of water leakage of the toothbrush body caused by hidden danger of production process is avoided. Through touch-control and slip mode, sense automatic awakening when someone uses, need not press the button again, control the convenience, various states are LED demonstration, and is simple directly perceived.

Meanwhile, an electric field and a high-frequency capacitor are formed between the human body finger and the shell, a current signal is transmitted to the metal key on the inner surface of the shell through the coupling of the capacitor, and the sliding direction is adopted to control the startup and shutdown and the gear adjustment, so that misjudgment is avoided.

In addition, the electric toothbrush has the advantages of attractive appearance, high intelligent degree and long service life.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims

1. An electric toothbrush is characterized by comprising a brush holder shell, wherein a first touch area for receiving a wake-up instruction and a second touch area for receiving a gear adjustment instruction are arranged on a brush holder shell body; the inner wall of the brush handle shell is provided with a wakeup induction sheet corresponding to the position of the first touch area and a sliding induction sheet corresponding to the position of the second touch area; the toothbrush handle shell is internally provided with a motor for driving the toothbrush head to vibrate and a control panel for starting when receiving a wake-up command and adjusting the gear of the motor when receiving a gear adjusting command; the motor, the awakening induction piece and the sliding induction piece are all connected with the motor.

2. The electric toothbrush of claim 1, wherein the wake-up sensing tab is ring-shaped.

3. The powered toothbrush as defined in claim 1, wherein the first touch area and the wake-up sensor pad are located at a lower portion of the handle housing and the second touch area and the slide sensor pad are located at an upper portion of the handle housing.

4. The powered toothbrush of claim 1, further comprising a toothbrush head, one end of the toothbrush head extending outside the handle housing, the other end of the toothbrush head being coupled to the motor.

5. The electric toothbrush according to claim 1, wherein the control board comprises a touch control unit, a vibration frequency adjusting unit, a gear touch key connection interface and a wake-up key connection interface, the wake-up key connection interface is electrically connected with the wake-up sensing strip, the gear touch key connection interface is electrically connected with the sliding sensing strip, the touch control unit is waken up when the wake-up sensing strip senses a wake-up command, and the vibration frequency and amplitude of the motor are adjusted by driving the vibration frequency adjusting unit when the sliding sensing strip senses the gear adjusting command.

6. The electric toothbrush according to claim 5, wherein the touch control unit comprises a touch control chip and a first capacitor, pins PE4/OSC1 of the touch control chip are grounded through the first capacitor, pins PC0/KEY5 of the touch control chip are connected with a pin 1 of the gear touch KEY connection interface, pins PC1/KEY6 of the touch control chip are connected with a pin 2 of the gear touch KEY connection interface, pins PC2/KEY7 of the touch control chip are connected with a pin 3 of the gear touch KEY connection interface, pins PC3/KEY8 of the touch control chip are connected with a pin 4 of the gear touch KEY connection interface, and pins PE0/KEY9 of the touch control chip are connected with a pin 2 of the gear touch KEY connection interface in a wake-up mode.

7. The electric toothbrush according to claim 6, wherein the touch control unit further comprises a first indicator light, a second indicator light, a third indicator light, a fourth indicator light, a fifth indicator light, a sixth indicator light, a seventh indicator light, AN eighth indicator light, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, AN eighth resistor and a first triode, wherein a negative electrode of the first indicator light is connected to the PA4/XT2 pin of the touch control chip, a positive electrode of the first indicator light is connected to the 3.3V power supply terminal through the first resistor, a negative electrode of the second indicator light is connected to the PB3/RX/AN3 pin of the touch control chip, a positive electrode of the second indicator light is connected to the 3.3V power supply terminal through the second resistor, a negative electrode of the third indicator light is connected to the PB2/TX/AN2 pin of the touch control chip, a positive electrode of the third indicator light is connected to the 3.3V power supply terminal through the third resistor, the negative electrode of the fourth indicator light is connected with a PB7/INT1AN7 pin of the touch chip, the positive electrode of the fourth indicator light is connected with a 3.3V power supply end through a fourth resistor, the negative electrode of the fifth indicator light is connected with a PB1/SCK/AN1 pin of the touch chip, the positive electrode of the fifth indicator light is connected with the 3.3V power supply end through a fifth resistor, the negative electrode of the sixth indicator light is connected with a PB4/AN 4pin of the touch chip, the positive electrode of the sixth indicator light is connected with the 3.3V power supply end through a sixth resistor, the negative electrode of the seventh indicator light is connected with a PB5/AN5 pin of the touch chip, the positive electrode of the seventh indicator light is connected with the 3.3V power supply end through a seventh resistor, the positive electrode of the eighth indicator light is connected with a 3.3V power supply end, the negative electrode of the eighth indicator light is connected with a collector electrode of the first triode through a ninth resistor, and the base electrode of the first triode is connected with a PE3/KEY12 pin of the touch chip through.

8. The electric toothbrush according to claim 6, wherein the vibration frequency adjusting unit comprises: the base electrode of the second triode is connected with a PA1/CTP0 pin of the touch chip through the tenth resistor, the emitter electrode of the second triode is grounded, the collector electrode of the second triode is connected with the grid electrode of the first MOS tube and one end of the thirteenth resistor through the twelfth resistor, the source electrode of the first MOS tube and the other end of the thirteenth resistor are connected with a VCC power supply end, the drain electrode of the first MOS tube is connected with the positive electrode of the motor and the drain electrode of the second MOS tube and is further grounded through the second capacitor, the source electrode of the second MOS tube is grounded, the grid electrode of the second MOS tube is connected with a PE5/OSC2 pin of the touch chip through the fifteenth resistor, The base electrode of the third triode is connected with a PA7/CTP1 pin of the touch chip through an eleventh resistor, the emitter electrode of the third triode is grounded, the collector electrode of the third triode is connected with the grid electrode of the third MOS tube and one end of a seventeenth resistor through a sixteenth resistor, the source electrode of the first MOS tube and the other end of the seventeenth resistor are connected with a VCC power supply end, the drain electrode of the third MOS tube is connected with the negative electrode of the motor and the drain electrode of the fourth MOS tube and is further grounded through a third capacitor, the source electrode of the fourth MOS tube is grounded, and the grid electrode of the fourth MOS tube is connected with a PA5/CTP0B pin of the touch chip through an eighteenth resistor and is also grounded through a nineteenth resistor.

9. The electric toothbrush of claim 6, further comprising a voltage stabilization unit, the voltage stabilization unit comprising: LDO linear steady voltage chip, fourth electric capacity, fifth electric capacity, sixth electric capacity, seventh electric capacity, eighth electric capacity, twentieth resistance, twenty first resistance and inductance, the battery positive pole and the VCC supply end of electric toothbrush are connected to the VIN foot of LDO linear steady voltage chip, and the PB6/AN6 end and the one end of twenty first resistance through the twentieth resistance connection touch-control chip also through fourth electric capacity ground connection, and through fifth electric capacity ground connection, still through sixth electric capacity ground connection, the VDD end of VOUT end through inductance connection touch-control chip, also through seventh electric capacity ground connection, still through eighth electric capacity ground connection.

10. The power toothbrush of claim 6, further comprising a wireless charging unit, the wireless charging unit comprising a charging management chip, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a fourth triode, a ninth indicator light, and a diode, wherein the VCC pin of the charging management chip is connected to one end of the twenty-third resistor and to the anode of the ninth indicator light, the cathode of the ninth indicator light is connected to the CHRG pin of the charging management chip through the twenty-sixth resistor, the other end of the twenty-third resistor is connected to the cathode of the diode and to one end of the tenth capacitor, and the CE pin of the charging management chip and one end of the twenty-eighth resistor are also connected through the twelfth resistor, The power supply device is characterized IN that the power supply device is also connected with one ends of a PA6/INT0 pin and a twenty-fifth resistor of the touch chip through a twenty-fourteenth resistor, the anode of the diode is connected with AN IN5V + end and is grounded through a ninth capacitor, the other end of the tenth capacitor and the other end of the twenty-fifth resistor are grounded, the other end of the twenty-fifth resistor is connected with a collector of a fourth triode, the base of the fourth triode is connected with a PB0/SDA/AN0 pin of the touch chip through a twenty-ninth resistor, a BAT pin of the charge management chip is connected with a VCC power supply end and is grounded through AN eleventh capacitor and is grounded through a twelfth capacitor, and a PROG2 pin of the charge management chip is grounded through a twenty-seventh resistor.