Electric toothbrush with linear vibration motor

Abstract

The invention discloses an electric toothbrush with a linear vibration motor. The electric toothbrush comprises a vibrating rod, a permanent magnet, a winding and a mounting base, wherein the vibrating rod is arranged on the mounting base; the permanent magnet is fixed on the vibrating rod; the winding is arranged corresponding to the position, at which the permanent magnet is fixed, of the vibrating rod; the winding generates an AC magnetic field after pulse current is introduced; at least two vibration holes through which the vibrating rod passes and in which the vibrating rod is limited areformed in the mounting base; the vibration holes are in a strip shape; and the vibrating rod carries out linear vibration in the vibration holes under the action of the AC magnetic field through shape matching of the vibrating rod and the vibration holes. The electric toothbrush with the linear vibration motor is simple in structure; the number of parts of the electric toothbrush is reduced; andthe linear vibration motor is more suitable for the movement mode required for the electric toothbrush.

Description

technical field [0001] The invention relates to the field of oral care appliances, specifically an electric toothbrush with a linear vibration motor. Background technique [0002] With the improvement of consumers' living standards, electric toothbrushes are becoming the best tool for consumers to maintain their teeth. Most of the commercially available electric toothbrushes are composed of traditional motors and vibrating rings due to cost reasons. Frequency instability, the amplitude and frequency of vibration will fluctuate with the voltage of the battery. Although special vibrating motors have also appeared on the market, they are complex in structure, high in cost, poor in reliability, and require manual adjustment during production, making it difficult to ensure consistency and not suitable for mass promotion, thus promoting the invention of oscillating motors. [0003] At present, the common electric toothbrush high frequency oscillating motor on the market is evolve...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of consumers' living standards, electric toothbrushes are becoming the best tool for consumers to maintain their teeth. Most of the commercially available electric toothbrushes use traditional toothbrushes due to cost reasons. Composed of a motor and a vibrating ring, its disadvantages: the vibration is not strong enough, the working frequency is unstable, and the amplitude and frequency of the vibration will fluctuate with the voltage of the battery

These tasks require a large workload, and the cost is relatively high, especially the coaxiality of the proofreading rotation, even when assembling each electric toothbrush, which greatly increases the cost of the electric toothbrush

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