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Actuation system for personal care appliance using linear actuators

A linear actuator, personal care technology, used in electric components, medical science, dentistry, etc., can solve problems such as expensive, complex anti-vibration/damping systems, etc.

Inactive Publication Date: 2012-02-29
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many of these anti-vibration / damping systems are complex and expensive; others do not achieve the desired results

Method used

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  • Actuation system for personal care appliance using linear actuators
  • Actuation system for personal care appliance using linear actuators
  • Actuation system for personal care appliance using linear actuators

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0009] figure 1 An embodiment of the driving / actuating system of the present invention is shown. The drive / actuating system is generally indicated by 10 and is also shown to drive the output shaft connector 12, on which the output drive shaft 14 is fixed. in figure 1 In the figure, the output shaft 14 is shown to be supported by two spaced apart rotating and linear bearings 16 and 18, but these are not necessary for the appliance system. A workpiece (not shown) is mounted on the free end 15 of the output shaft 14, which can be, for example, a toothbrush head or other personal care appliance element. The terms “drive assembly” and “actuation assembly” are used interchangeably herein, and both are used to refer to the system 10. The device shown and described can be used in personal care appliances such as electric toothbrushes and other small appliances with reciprocating and / or oscillating motion.

[0010] The drive system 10 includes two linear actuators 20 and 22. Any pair o...

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PUM

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Abstract

The personal care appliance drive system includes a pair of linear actuators (20, 22) capable of operating both in an opposing phase mode or in a parallel (in phase) mode. The system includes a motion converter assembly (64) which converts the opposing phase action of the two linear actuators (20, 22) into a rotational action of an output drive shaft (14) and converts in phase action to a translation motion of the output shaft or to drive another function of the appliance, such as a pump. The motion converter (64), operating simultaneously in an opposing phase mode and in phase modes, produces a complex motion of the workpiece.

Description

Technical field [0001] The present invention generally relates to an actuation system for personal care appliances such as power toothbrushes, and more specifically to a desire to use two linear actuators and motion converters to produce a workpiece mounted on the drive shaft portion of the appliance The actuation system of the movement. Background technique [0002] Many different actuation / drive systems for powered toothbrushes are known, including a variety of mechanical, electromechanical and magnetic configurations. A significant problem with many such drive systems is the vibration and noise of the handle caused by the movement of the drive system. Various forms of damping have been used to reduce this undesirable noise and / or handle vibration. There are also various spring / motor configurations that have been designed to try to counteract vibrations in the handle. However, many of these anti-vibration / damping systems are complex and expensive; others cannot achieve the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/06A61C1/06A61C17/34
CPCH02K33/00A61C1/06A61C17/34H02K16/00
Inventor W·本宁J·W·佩斯
Owner KONINK PHILIPS ELECTRONICS NV
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