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Electric switch

A technology for electrical switches and insulating parts, which is applied in the field of electrical switches, and can solve the problems of lengthening the effective electrical distance and not being able to set ribs, etc.

Inactive Publication Date: 2006-07-26
ABB PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Contrary to the outer wall, it cannot be provided with ribs, surrounding battens or similar structures, since these would increase the electrical effective distance

Method used

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  • Electric switch
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Experimental program
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Effect test

Embodiment Construction

[0018] FIG. 1 shows a vacuum chamber 10 with a current input 12 at its upper end 11 and a current output 13 at its lower end. Protruding from the vacuum chamber 10 is a contact rod 14 to which one end of a conductive strip 15 is connected, while the other end thereof is electrically conductively fastened to the current output element. Connected to the displaceable contact rod 14 is a transmission element 16 which is coupled to a transmission not shown in detail.

[0019] The vacuum chamber 10 together with the current input and output parts 12 and 13 are cast in a casting resin 17, wherein at the lower end of the vacuum chamber is connected a cylindrical tube 18 which encloses a free cavity 19 or enters the Cavity 19. Via this access chamber 19 the transmission element 16 extends as far as the movable contact rod 14 .

[0020] The inner surface 20 of the cylindrical tube 18 is smooth, and in order to avoid a dielectric discharge along this inner surface, a foam material is u...

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PUM

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Abstract

The present invention discloses an electrical switch inserting into an insulating material such as castingresin or ceramic. A movable contact element is connected to a gearing passing through a tube insulation with one end open, wherein a sealing element is in the free hollow space. The sealing element is at least pressed against or glued to the inner surface of the insulating component for purposes of preventing dielectric leakage from a high potential to the earth potential.

Description

technical field [0001] The invention relates to an electrical switch inserted in an insulating material. Background technique [0002] Such a switch can be inserted as an outdoor switch in a ceramic tube, wherein the transmission element of the moving contact is guided downwards through a free space to a transmission. Such a switch can also be a vacuum chamber in a similar manner, which has current input and output parts arranged perpendicular to the central axis; a transmission element is arranged for the action of the movable contact part, which is arranged in the longitudinal direction of the central axis direction. If such a vacuum chamber is cast in casting resin, free space must also be provided in the area of ​​the transmission element in order to enable the transmission element to be guided to the movable contact piece. [0003] In order to be able to remove the core easily, the free space or the inner surface of the access cavity is designed to be smooth. In cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/666H01H33/662
CPCH01H2033/6623H01H33/66207H01H2033/66223
Inventor E·杜尔尼H·-J·克莱斯H·贝格
Owner ABB PATENT GMBH