Electric toothbrush and control method and control device thereof

By sensing the contact pressure and position between the brush head and teeth in real time, the vibration intensity and movement mode of the electric toothbrush are dynamically adjusted, solving the problem of blind spots in the cleaning of electric toothbrushes and achieving precise zoned cleaning and improved user comfort.

CN120959929APending Publication Date: 2025-11-18RISUN TECH (SHENZHEN) LTD
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Patent Information

Application Number
CN202511137986.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Electric toothbrushes have blind spots during the cleaning process, making it difficult to reach narrow areas such as the interdental surfaces of teeth and the gingival sulcus. Furthermore, differences in brushing techniques and pressure among different users affect the cleaning effect, resulting in inadequate local cleaning.

Method used

By acquiring information about the contact pressure and position between the brush head and the tooth surface, the vibration intensity and movement mode are dynamically adjusted. The movement trajectory of the brush head is matched according to the cleaning area, including low-frequency vibration, rotation, reciprocating oscillation, etc. Combined with pressure sensing to adjust the vibration intensity, the cleaning effect and user comfort are ensured.

Benefits of technology

It achieves precise cleaning by zone, improves the cleaning effect of electric toothbrushes, reduces the risk of gum damage, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention discloses an electric toothbrush and a control method and device thereof, and relates to the technical field of electric toothbrushes, the electric toothbrush comprises a brush head, in the control method of the electric toothbrush, when the electric toothbrush is in a power-on state, the contact pressure between the brush head and the tooth surface and the position information of the brush head are obtained; the vibration intensity of the brush head is adjusted according to the contact pressure; the current cleaning area is determined according to the position information, the brush head is controlled to move according to the corresponding movement mode based on the current cleaning area so that the movement track of the brush head can be matched with the current cleaning area, and the movement mode comprises any one or more combinations of a low-frequency vibration mode, a high-frequency vibration mode, a rotation mode and a reciprocating swing mode. The cleaning effect of the electric toothbrush is improved, and therefore the user experience feeling is improved.
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