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Actuators with enhanced magnetic spring function for personal care appliances

A technology for personal care and actuators, applied in the fields of medical science, cleaning teeth, dentistry, etc., to achieve the effect of reducing manufacturing cost and price, reducing nonlinear characteristics, and reducing magnet volume

Active Publication Date: 2019-09-27
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] figure 1 A disadvantage of the prior art actuator 10 is that the two actuator parts are defined as separate actuators

Method used

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  • Actuators with enhanced magnetic spring function for personal care appliances
  • Actuators with enhanced magnetic spring function for personal care appliances
  • Actuators with enhanced magnetic spring function for personal care appliances

Examples

Experimental program
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Effect test

Embodiment Construction

[0044] Embodiments of the disclosure and various features and advantageous details thereof will be explained more fully with reference to the non-limiting examples described and / or illustrated in the drawings and detailed in the following description. It should be noted that features illustrated in the figures are not necessarily drawn to scale and that features of one embodiment may be employed with other embodiments, even if not expressly stated herein, as the skilled artisan will recognize. Descriptions of well-known components and processing techniques may be omitted so as not to unnecessarily obscure the embodiments of the present disclosure. The examples used herein are intended merely to facilitate understanding of the manner in which embodiments of the disclosure may be practiced and to further enable those skilled in the art to practice the embodiments of the disclosure. Accordingly, the examples herein should not be construed as limiting the scope of embodiments of t...

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PUM

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Abstract

An actuator (52) for a personal care appliance (50) comprises a housing (54), a spindle (64), a tangential actuator portion (70), and an axial actuator portion (72). The tangential actuator portion (70) includes first and second magnet and pole assemblies (76,78) that define a tangential spring function of the tangential actuator portion. The axial actuator portion (72) includes third and fourth magnet and pole assemblies (90,92) that define an axial spring function of the axial actuator portion. At least one of (i) the first and second magnet and pole assemblies (76,78) of the tangential actuator portion (70) and (ii) third and fourth magnet and pole assemblies (90,92) of the axial actuator portion are configured to enhance a corresponding spring function of the axial actuator portion or tangential actuator portion, respectively.

Description

technical field [0001] The present embodiments relate generally to drive systems for personal care appliances, such as electric toothbrushes, and more particularly to combined tangential and axial motion drive systems with enhanced magnetic spring functionality. Background technique [0002] figure 1 is a cross-sectional view of a dual motion actuator 10 having a tangential actuator portion 12 and an axial actuator portion 14 according to the prior art. The tangential actuator portion 12 and the axial actuator portion 14 share the same housing 16 and shaft (or main shaft) 18 . figure 1 The left-hand portion of FIG. 10 illustrates an end view of the actuator 10, and in particular the tangential actuator portion 12 as seen from the left-hand end. figure 1 The right hand portion of FIG. 10 illustrates another end view of the actuator 10, and in particular the axial actuator portion 14 as viewed from the right hand end. [0003] The tangential actuator portion 12 generally co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C17/32A61C17/34
Inventor P·J·巴克斯F·J·伯斯曼
Owner KONINKLJIJKE PHILIPS NV
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