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Reversing switch

A technology for changeover switches and fixed terminals, which is applied in the direction of electric switches, electrical components, and contact engagement. It can solve the problems of not being able to improve the contact reliability of contacts, and achieve the effect of improving contact reliability.

Active Publication Date: 2008-03-12
FUJI ELECTRIC FA COMPONENTS & SYST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, in the existing changeover switch, the sliding of the movable contact and the fixed contact during the changeover switch cannot sufficiently peel off the insulating film formed by vulcanization and oxidation on the surface of each contact, and the contact reliability of the contact cannot be improved. questions like sex

Method used

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Examples

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Embodiment

[0043] 1 and 2 are diagrams showing an embodiment of a changeover switch according to the present invention, wherein FIG. 1 is a perspective view thereof, and FIG. 2 is a longitudinal sectional view thereof.

[0044] In these figures, the same components as those of the conventional switches are denoted by the same reference numerals.

[0045] The normally closed fixed terminal board 4 and the normally open fixed terminal board 5 have a normally closed fixed contact 4a and a normally open fixed contact 5a mounted on the front end respectively, and external connection terminals 4b and 5b are integrally formed on the base end. As shown separately in FIG. 5, the common terminal plate 6 has a U-shaped support frame 6a for supporting the movable member at the front end, and an external connection terminal 6b integrally formed at the base end.

[0046] The front ends of the normally closed fixed terminal plate 4 and the normally open fixed terminal plate 5 are bent so that the norma...

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PUM

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Abstract

The present invention provides a transfer switch which is capable of improving the contact reliability of connection points by driving relative large slippage of a movable connection point and a fixed connection point during switching-on and switching-off. In order to support a movable component of switch composed of a movable contact head, a working lever and the like, a U shaped supporting frame formed at front end part of a common terminal board and a linking part of the common terminal board is arranged with a connecting header with a thin and narrow width, and the connecting header is exposed on an insulation base station for supporting a fixed terminal board. Then, the rigidity of the supporting frame part is reduced; during a switching-on and -off operation, the movable connection point is driven to slide greatly on the fixed connection point to remove dielectric films formed on surfaces of the connection points.

Description

technical field [0001] The present invention relates to a changeover switch incorporated into a push button switch and the like. Background technique [0002] Such a switch is already known from Patent Document 1 and the like. [0003] In FIG. 6, a typical structure of a transfer switch in the prior art is shown. [0004] The changeover switch of FIG. 6 includes a normally closed fixed terminal board 4 , a normally open fixed terminal board 5 , and a common terminal board 6 as fixing members. On the normally closed fixed terminal plate 4 , as shown in FIG. 7 , a fixed contact 4 a is mounted on the front end, and an external connection terminal 4 b is integrally formed on the base end. Also, on the normally open fixed terminal board 5 , a fixed contact 5 a is attached to the front end, and is arranged below the fixed contact 4 a of the normally closed fixed terminal board 4 to face the fixed contact 4 a at a predetermined interval. Furthermore, an external connection termi...

Claims

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Application Information

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IPC IPC(8): H01H5/06H01H13/28
CPCH01H11/0056H01H13/28H01H1/18
Inventor 町田谨斋西尾三男竹内刚久下山荣治郎
Owner FUJI ELECTRIC FA COMPONENTS & SYST CO LTD
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