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Movable contact part and switch device

A technology for moving contacts and components, applied in electrical switches, electrical components, circuits, etc., can solve the problems of cracks in the notch and inability to have life performance, and achieve the effect of reducing stress amplitude and realizing miniaturization.

Active Publication Date: 2012-04-04
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the movable contact member described in Patent Document 1, since stress concentration occurs at the pair of notches formed in the protruding portion, although miniaturization can be achieved, cracks easily occur from the notches and insufficient The problem of life performance

Method used

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  • Movable contact part and switch device
  • Movable contact part and switch device
  • Movable contact part and switch device

Examples

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Embodiment Construction

[0054] As a movable contact member used in a switchgear, a structure combining an arch-shaped raised portion and a skirt connected to the raised portion has been proposed. In the switchgear according to the present invention, the miniaturization of the movable contact member is desired along with the miniaturization of electronic equipment. Generally, when reducing the size of the movable contact member, the raised portion is cut together with the skirt portion to provide a pair of opposing notches, thereby reducing the size of the movable contact member. However, in this movable contact member, cracks tend to occur from the pair of notches, making it difficult to achieve a longer life.

[0055] Here, the present applicant investigated the relationship between the formation positions of the pair of notches and the life of the movable contact member (here, the number of times of repeated pressing operations in which cracks occur on the movable contact member), and as a result, ...

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Abstract

The invention provides a movable contact part and switch device, which achieves miniaturization, lowers the stress amplitude of a notch part and has the service lifetime prolonged. The device is characterized by comprising a projecting part (25) projected in an arch shape and capable of reverse rotation; a skirt protecting part (26) continuously unfolding from the periphery of the projecting part (25) to the outer side of the radius direction; and a pair of notch parts (27) formed on the skirt protecting part (26) and cutting two opposed parts, wherein, the gap between the notch parts (27) is set to be larger than the diameter of the projecting part (25).

Description

technical field [0001] The present invention relates to a movable contact member and a switch device, and particularly to a movable contact member and a switch device incorporated in small electronic devices such as mobile phones. Background technique [0002] As a movable contact member generally used in a switchgear, there is known a structure in which a thin metal plate is processed and formed into an arched shape with a predetermined curvature. The movable contact member is pressed to reverse direction, and when the pressing is released, the movable contact member is returned by an elastic restoring force. In this case, the operational feeling is adjusted by changing the curvature of the movable contact member, but it is difficult to obtain desired operational feeling such as force and click feeling only by changing the curvature of the movable contact member. [0003] As a movable contact member that solves this problem, there is a structure in which an arch-shaped rai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/48
Inventor 田泽俊彦贞松伊鹤高桥一成
Owner ALPS ALPINE CO LTD
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