Driving frequency control method and control system for electric toothbrush
A driving frequency, electric toothbrush technology, applied in control systems, motor control, dentistry, etc., can solve the problem of electric toothbrushes not reaching the optimal working state, and achieve simple and accurate adjustment methods, low power consumption, and reduced overall power consumption. consumption effect
Active Publication Date: 2020-06-02
GUANGZHOU STARS PULSE CO LTD
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Problems solved by technology
[0002] Existing electric toothbrushes, its driving mode is generally that the microprocessor outputs the drive frequency to drive wave to drive motor, thereby drives motor to rotate, drives electric toothbrush brush head to rotate when motor rotates, and the brush head of existing electric toothbrush generally does reciprocating Periodic motion, the motor has a fixed frequency of reciprocating periodic motion, but the model of the brush head of the electric toothbrush, the tolerance of the motor assembly, etc. will affect the fixed frequency of the motor, so that the fixed frequency of the motor will continue to change during the brushing process, and When the fixed frequency output by the microprocessor is consistent with the fixed frequency output by the motor, the electric toothbrush will reach the optimal working state, and in the process of changing the fixed frequency output by the motor, the driving frequency output by the microprocessor will not change. With the change, the electric toothbrush cannot reach the optimal working state
Method used
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Embodiment Construction
[0044] Embodiments of the present invention will be described in detail below.
[0045] When the electric toothbrush is running, the microprocessor module 100 of the electric toothbrush outputs the drive frequency to the drive motor 300, and the drive motor 300 drives the brush head of the electric toothbrush to rotate at a fixed frequency of reciprocating motion, but the fixed frequency of the drive motor 300 is caused by the motor Due to the influence of assembly tolerances and other reasons, the fixed frequency of the drive motor 300 is constantly changing dynamically, such as figure 1 As shown, when the vibration amplitude of the brush head of the electric toothbrush is constant, when the driving frequency F of the microprocessor module 100 of the electric toothbrush is close to or consistent with the fixed frequency f of the driving motor 300, the current of the driving motor 300 of the electric toothbrush I will drop sharply, by figure 1 It can be seen that when the der...
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Provided are a method for controlling the drive frequency of an electric toothbrush, and a control system thereof, said method comprising the following steps: A. starting an electric toothbrush (S10); B. a drive motor (300) of the electric toothbrush rotating at its natural frequency (S20); C. a current detection module (400) detecting in real time the current of the drive motor (300) (S30); D. a microprocessor module (100) adjusting the drive frequency of its output according to the current of the drive motor (300) detected by the current detection module (400), such that the drive frequency coincides with the natural frequency of the drive motor (300) (S40). By means of causing the drive frequency outputted by the microprocessor to coincide with the natural frequency outputted by the motor, the electric toothbrush reaches an optimal state of operation.
Description
technical field [0001] The invention relates to the field of electric toothbrushes, more specifically, a method for controlling the driving frequency of an electric toothbrush and a control system thereof. Background technique [0002] Existing electric toothbrushes, its driving mode is generally that the microprocessor outputs the drive frequency to drive wave to drive motor, thereby drives motor to rotate, drives electric toothbrush brush head to rotate when motor rotates, and the brush head of existing electric toothbrush generally does reciprocating Periodic motion, the motor has a fixed frequency of reciprocating periodic motion, but the model of the brush head of the electric toothbrush, the tolerance of the motor assembly, etc. will affect the fixed frequency of the motor, so that the fixed frequency of the motor will continue to change during the brushing process, and When the fixed frequency output by the microprocessor is consistent with the fixed frequency output ...
Claims
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IPC IPC(8): A61C17/22A61C17/26H02P29/00
CPCA61C17/221A61C17/26H02P29/00
Inventor 赵立群刘明陈建群吕少波
Owner GUANGZHOU STARS PULSE CO LTD