Driveline assembly for electric toothbrush and method of manufacture
By setting a connecting element extending along the outer surface of the shaft between the shaft and the shaft interface of the electric toothbrush and performing laser welding, the connection failure problem caused by fatigue of the transmission system components is solved, a stable connection between the shaft and the shaft interface is achieved, and the service life of the toothbrush is extended.
CN122295064APending Publication Date: 2026-06-26KONINKLIJKE PHILIPS NV
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Patent Information
- Application Number
- CN202480075641.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-30
- Filing Date
- 2024-11-25
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
The transmission system components of electric toothbrushes are prone to fatigue during use, which can lead to connection failures, causing the toothbrush to lose its function and become unusable.
Method used
By incorporating connecting elements between shafts and shaft interfaces, extending along the outer surface of the shaft to enhance connection strength, including laser-welded welded joints, a robust connection between shafts and shaft interfaces is ensured.
Benefits of technology
It improves the fatigue resistance of the transmission system components, prevents the shaft-to-shaft interface from disconnecting, and ensures the toothbrush operates stably for a long time.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to a driveline assembly for a power toothbrush, the driveline assembly comprising a shaft comprising a rear side and a front side, where the front side of the shaft is configured for receiving a brush head. The driveline assembly further includes: a driveline including a shaft interface configured to receive the shaft, where the shaft interface includes a rear surface and a front surface, where a rear side of the shaft is connected with the shaft interface from a direction of the front surface of the shaft interface for connection with the driveline; a connecting element configured for connecting the shaft with the shaft interface, where the connecting element extends at least partially along an outer surface at a rear side of the shaft for connecting the shaft interface and the shaft at the rear side of the shaft. The invention also relates to a toothbrush comprising a driveline assembly and to a manufacturing method for manufacturing a shaft and shaft interface assembly.
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