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Movable contact member and switching device

A technology for moving contacts and components, applied in electrical switches, electrical components, circuits, etc., can solve problems such as cracks and inability to have life performance, and achieve the effects of reducing stress amplitude, easy operation, and easy adjustment.

Active Publication Date: 2013-11-06
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, with this movable contact member, it is easy to adjust the operating feeling, but by repeated pressing operations, cracks are likely to occur from the outer peripheral edge portion of the skirt to the inside, and there is a problem that sufficient life performance cannot be achieved.

Method used

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  • Movable contact member and switching device
  • Movable contact member and switching device
  • Movable contact member and switching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053]In the switchgear to which the present invention is applied, it is desired to reduce the diameter of the movable contact member along with the miniaturization of electronic equipment. Generally, in a circular plate subjected to a concentrated load at the center, if the diameter of the circular plate is Φ and the thickness of the circular plate is t, the stress amplitude σ increases in inverse proportion to the square of the diameter of the disc.

[0054] σ∝t / Φ 2 …(1)

[0055] Therefore, due to the reduction in diameter of the movable contact member, a large stress amplitude in the circumferential direction is generated in the outer peripheral portion of the movable contact member.

[0056] In addition, the applicant of the present application studied the relationship between the stress amplitude in the circumferential direction generated on the outer peripheral edge of the movable contact member and the life of the movable contact member (here, the relationship betwee...

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PUM

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Abstract

The invention provides a movable contact member and a switching device which is easy to adjust operation feeling and capable of reducing the stress amplitude of the periphery in a circumferential direction to achieve long service life. The invention comprises an arc-shaped convexcamber (25) and a skit section which continues with the convexcamber (25) from the periphery part (25a) of the convexcamber (25) and extends externally and radially. The skit section (26) continues with the convexcamber (25) from the periphery part (25a) of the convexcamber (25) in a direction similar to a tangent direction. The tangent (T1) extends along the radial direction of the arch at the periphery part (25a) of the convexcamber (25).

Description

technical field [0001] The present invention relates to a movable contact member and a switch device, in particular to a movable contact member and a switch device incorporated in small electronic devices such as mobile phones. Background technique [0002] Generally, as a movable contact member used in a switchgear, a movable contact member that is formed into an arch shape with a predetermined curvature by processing a thin metal plate is known. The movable contact member is reversely bent by pressing, and returns to its original state by elastic restoring force when the pressing is released. In this case, the operational feeling can be adjusted by changing the curvature of the movable contact member, but it is difficult to obtain a desired operational feeling such as operating force and click feeling only by changing the curvature of the movable contact member. [0003] As a movable contact member that solves this problem, a movable contact member that combines an arch-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/12H01H13/48H01H13/52
Inventor 贞松伊鹤高桥一成田泽俊彦
Owner ALPS ALPINE CO LTD