Damping mechanism of electric toothbrush motor

Abstract

The invention discloses a damping mechanism of an electric toothbrush motor, which is characterized in that vertical guide rails are welded on the left and right side walls in an inner cavity of a middle shell, the two vertical guide rails are arranged between an annular sound insulation cotton layer and a pressing plate, flat plates are welded on the lower end parts of the two vertical guide rails, and the other ends of vertical springs are welded on the flat plates; a motor is arranged in the inner cavity of the middle shell and located between the supporting plate and the pressing plate, the motor is arranged in the annular sound insulation cotton layer, a mounting plate and a conical disc are welded to a motor shell, the conical disc is arranged below the mounting plate, the lower end of the motor is arranged in the heat conduction cylinder A, and the left end and the right end of the mounting plate are welded to the side faces of the two sliding blocks respectively. The two horizontal guide rods are sleeved with damping blocks, and one side face of each damping block is provided with a conical groove matched with the conical face of the conical disc. The toothbrush has the beneficial effects that the motor can be damped, large vibration of the movable toothbrush is prevented, noise caused by vibration is avoided, and the use experience of a user is improved.

Description

technical field [0001] The invention relates to the technical field of shock absorption for electric toothbrush motors, in particular to a shock absorption mechanism for electric toothbrush motors. Background technique [0002] Toothbrush is a kind of brush that is used to clean teeth, belongs to the necessities of people's life. Along with the development of science and technology at present, electric toothbrush appears as new toothbrush form. Surveys show that electric toothbrushes are more scientific and effective than ordinary toothbrushes, and can remove dental plaque, reduce gingivitis, periodontal disease and gum bleeding and other oral diseases, so they are increasingly popular. [0003] The current electric toothbrush is mainly based on the principle of vibration. The electric toothbrush generates high-frequency vibrations through the rapid vibration of the electric toothbrush. The bristles of the brush head instantly decompose the toothpaste into fine foam, ensuri...

AI Technical Summary

Problems solved by technology

In order to achieve a better cleaning effect, the electric toothbrush can achieve a vibration frequency of more than 30,000 times / min. The reason why the electric toothbrush has such a high vibration frequency is that the core component is the motor. Type connection, when the motor vibrates at high frequency, it will inevitably cause irregular vibration of the shell, causing the hand to vibrate when the user holds the shell, which greatly reduces the comfort of use

In addition, the high-frequency vibration of the motor will also cause the brush head to tremble and deflect, and then swing out of control and touch the user's mouth by mistake, thus causing damage to the user's teeth. The reason is that the motor is vibrating irregularly. The connecting shaft between the output shaft of the motor and the brush head is also vibrating irregularly

[0004] At present, the current electric toothbrush also has the following defects: 1. After the battery and motor in the electric toothbrush work for a long time, a large amount of heat will inevitably be generated on the battery and motor, and then the temperature inside the shell will rise sharply. Emissions, batteries and motors are easily burned at high temperatures, which reduces the service life of electric toothbrushes

2. When the motor vibrates at high frequency, it produces a lot of noise. After the noise is transmitted to the shell, it will also bring discomfort to the user, further reducing the comfort of use.

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