CN-224217011-U - Control circuit and electric toothbrush

CN224217011UCN 224217011 UCN224217011 UCN 224217011UCN-224217011-U

Abstract

The utility model provides a control circuit and an electric toothbrush, which are applied to the electric toothbrush, wherein the control circuit comprises a power supply circuit, an information acquisition circuit, a motor driving circuit, a main control circuit, a pressure sensing lamp circuit and a Bluetooth communication circuit. The utility model monitors the running state of the electric toothbrush in real time, wherein the running state comprises the pressure applied during brushing teeth, and prompts a user to adjust the force through tactile feedback and optical warning when the pressure is detected to exceed a safety threshold value, so that gum injury and hard tissue abrasion of teeth caused by excessive pressure are avoided. Meanwhile, the motor driving circuit is adopted to drive the motor to form sonic vibration, so that water flow and toothpaste foam form microjet and penetrate into blind areas which are difficult to cover by traditional vibration schemes such as tooth gaps, gingival sulcus and the like, the plaque clearance rate is improved, and the caries and periodontal disease risks are reduced. In addition, the utility model synchronizes the running state information of the electric toothbrush to the mobile terminal through the Bluetooth communication circuit, thereby helping the user to establish scientific brushing habits.

Inventors

CHEN CHUGANG
ZHANG HONGLEI
LI DONGBAO
ZHENG CHUANZHOU

Assignees

瑞圣特科技(深圳)有限公司

Dates

Publication Date: 20260508
Application Date: 20250521

Claims (10)

1. A control circuit for use with an electric toothbrush, the electric toothbrush including a motor, the control circuit comprising: The power supply circuit is used for carrying out power supply processing on the access power supply and outputting the processed access power supply; the information acquisition circuit is used for acquiring and outputting the operation state information of the electric toothbrush, wherein the operation state information comprises a first electric signal, and the first electric signal is converted from an acquired pressure signal; the output end of the motor driving circuit is connected with the controlled end of the motor and is used for driving the motor to work so as to provide sound wave vibration; The main control circuit is connected with the output end of the information acquisition circuit and the input end of the motor driving circuit, and is used for receiving the running state information output by the information acquisition circuit and outputting a corresponding first control signal to the motor driving circuit according to the first electric signal so as to control the motor to enter a preset overvoltage mode; The main control circuit is also used for outputting a corresponding first driving signal to the pressure induction lamp circuit according to the first electric signal so that the pressure induction lamp circuit responds to the first driving signal and works; And the Bluetooth communication circuit is used for carrying out Bluetooth communication between the main control circuit and the mobile terminal, wherein the main control circuit is also used for sending the received running state information to the mobile terminal through the Bluetooth communication circuit.
2. The control circuit of claim 1, wherein the information acquisition circuit comprises: the output end of the pressure sensing circuit is connected with the main control circuit and is used for collecting pressure signals, converting the pressure signals into first electric signals and outputting the first electric signals to the main control circuit; And the output end of the gyroscope circuit is connected with the main control circuit and is used for acquiring the position information and the motion track of the electric toothbrush and outputting the main control circuit.
3. The control circuit of claim 2, the electric toothbrush further comprising a toothbrush head, wherein the pressure sensing circuit comprises: The pressure sensor switch is arranged in the toothbrush head, one end of the pressure sensor switch is connected with the pressure input end of the main control circuit, the other end of the pressure sensor switch is grounded, and the pressure sensor switch is used for detecting the pressure of the toothbrush head contacted with teeth and outputting a first electric signal to the main control circuit when the pressure sensor switch is triggered.
4. The control circuit of claim 1, wherein the bluetooth communication circuit comprises: An antenna for transmitting or receiving signals; And the signal receiving and transmitting circuit is connected with the antenna and the main control circuit and is used for modulating the running state information of the main control circuit into radio frequency signals or converting the received signals into electric signals and outputting the electric signals to the main control circuit.
5. The control circuit of claim 4, wherein the bluetooth communication circuit is integrated in the same chip as the master circuit.
6. The control circuit of claim 1, further comprising: the power switch circuit is connected with the main control circuit and is used for outputting corresponding second electric signals to the main control circuit when operated by a user; The main control circuit is used for receiving and outputting a corresponding second control signal to the motor driving circuit according to a second electric signal of the power switch circuit so as to control the motor to enter a corresponding working mode.
7. The control circuit of any of claims 1-6, further comprising: and the data storage circuit is connected with the main control circuit and used for storing the running state information received by the main control circuit.
8. The control circuit of claim 1, wherein the power supply circuit comprises: the charging circuit is used for carrying out power supply processing on the access power supply; And the input end of the voltage conversion circuit is connected with the charging circuit and is used for converting the power supply output by the charging circuit into first voltage output.
9. An electric toothbrush comprising a battery, a motor and a control circuit as claimed in any one of claims 1 to 8.
10. The electric toothbrush of claim 9, further comprising: The control circuit, the battery and the motor are arranged in the handle; the toothbrush head is detachably arranged at one end of the handle.

Description

Control circuit and electric toothbrush Technical Field The utility model relates to the technical field of oral cavity cleaning, in particular to a control circuit and an electric toothbrush. Background With the deep popularity of personal care electronics, power toothbrushes as oral care tools for high frequency use, their functional integration and optimization of user experience have become critical to product upgrades. At present, the traditional electric toothbrush lacks a pressure sensing structure, a user cannot intuitively sense the tooth brushing force, the user can easily exert excessive force when pressing by hand feeling, gum bleeding and retraction can be caused by long-term use, even enamel is worn, the soft principle of the 'Papanicolaou tooth brushing method' is violated, bristles are clung to the tooth surface when the user excessively presses, the swing amplitude of the bristles is reduced, and the cleaning effect is weakened. In addition, the current mainstream technology in the field of electric toothbrushes still dominates mechanical rotary or basic vibratory cleaning schemes, the core of which relies on physical friction of the bristles with the tooth surface for cleaning. Traditional mechanical toothbrush relies on brush hair direct contact friction, and clean scope is limited to brush head physical contact region, and vibration frequency is single, can't drive rivers and foam deep into the slit of tooth, gingival sulcus through high frequency vibration, and is relatively poor to the clean effect in hidden area. Disclosure of utility model The utility model mainly aims to provide a control circuit and an electric toothbrush, and aims to solve the problem that the traditional electric toothbrush is damaged by gum caused by the fact that a user cannot sense excessive force due to lack of a pressure feedback mechanism, and the defect of low cleaning efficiency of a basic vibration type cleaning scheme. In view of the above problems, the present application proposes a control circuit applied to an electric toothbrush including a motor, the control circuit comprising: The power supply circuit is used for carrying out power supply processing on the access power supply and outputting the processed access power supply; the information acquisition circuit is used for acquiring and outputting the operation state information of the electric toothbrush, wherein the operation state information comprises a first electric signal, and the first electric signal is converted from an acquired pressure signal; the output end of the motor driving circuit is connected with the controlled end of the motor and is used for driving the motor to work so as to provide sound wave vibration; The main control circuit is connected with the output end of the information acquisition circuit and the input end of the motor driving circuit, and is used for receiving the running state information output by the information acquisition circuit and outputting a corresponding first control signal to the motor driving circuit according to the first electric signal so as to control the motor to enter a preset overvoltage mode; The main control circuit is also used for outputting a corresponding first driving signal to the pressure induction lamp circuit according to the first electric signal so that the pressure induction lamp circuit responds to the first driving signal and works; And the Bluetooth communication circuit is used for carrying out Bluetooth communication between the main control circuit and the mobile terminal, wherein the main control circuit is also used for sending the received running state information to the mobile terminal through the Bluetooth communication circuit. In one embodiment, the information acquisition circuit includes: the output end of the pressure sensing circuit is connected with the main control circuit and is used for collecting pressure signals, converting the pressure signals into first electric signals and outputting the first electric signals to the main control circuit; And the output end of the gyroscope circuit is connected with the main control circuit and is used for acquiring the position information and the motion track of the electric toothbrush and outputting the main control circuit. In one embodiment, the electric toothbrush further comprises a toothbrush head, and the pressure sensing circuit comprises: The pressure sensor switch is arranged in the toothbrush head, one end of the pressure sensor switch is connected with the pressure input end of the main control circuit, the other end of the pressure sensor switch is grounded, and the pressure sensor switch is used for detecting the pressure of the toothbrush head contacted with teeth and outputting a first electric signal to the main control circuit when the pressure sensor switch is triggered. In one embodiment, the bluetooth communication circuit comprises: An antenna for transmitting or receiving signals; And the signal