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Electrical switch

A technology of electric switch and cable end, which is applied in the field of rotary switch and can solve problems such as unsatisfactory contact

Inactive Publication Date: 2008-06-04
DEFOND COMPONENTS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This contact is far from ideal for contact resistance due to the typically small area when clamping the contact end of the cable end

Method used

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  • Electrical switch
  • Electrical switch
  • Electrical switch

Examples

Experimental program
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Embodiment Construction

[0017] Referring to the drawings, there is shown an electrical switch 100 embodying the present invention having a substantially flat cuboid housing 110 and a rotor 120 supported in the inner center of the housing 110 for rotating around a vertical The axis 10 of the housing 110 is rotated 360 degrees in the opposite direction. Switch 100 is a rotary switch. The housing 110 includes a base 112 that is substantially flat and cuboid, and a square cover 113 that closes the open top side of the housing 110 . The housing 110 includes four terminal holes 114 at its top corners C1 for inserting cables from power sources and loads and the like.

[0018] The rotor 120 has a generally flat cylindrical or disk-shaped body 129 including a peripheral surface 121 extending around the axis 10 and a generally flat bottom surface 122 extending transversely from the shaft 10 . The contour of the peripheral surface 121 is undulating, including eight equiangularly spaced (pointed) valleys 128, ...

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PUM

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Abstract

An electrical switch comprising a casing, an operator, a plurality of fixed contacts and a moving contact. The moving contact is movable by the operator to come into contact with and out of contact from the fixed contacts. The casing has a hole for insertion of an electric cable. At least one of the fixed contacts has a resilient end positioned behind the hole and deflectable inwards by an end of the cable upon insertion, a part integral with the contact end, and a separate conductor in electrical contact with the contact part and positioned adjacent the contact end. The contact end is operable to press the cable end, while being deflected thereby, against the conductor, together providing a double-aided electrical contact to the cable end.

Description

technical field [0001] This invention relates to an electrical switch, particularly but not exclusively to a rotary switch. Background technique [0002] Electrical switches are usually connected to the rest of the circuit by cables. For those switches with external terminals, the cable is usually soldered to the switch. Cable connections of the self-clamping type are known, in which internal fixed contacts are made with resilient ends behind holes. Once the cable is inserted into the hole, the contacts are deflected inwardly so as to clamp the cable end against the surface on the opposite side. This contact is far from ideal for contact resistance due to the typically small area of ​​the contact end when clamping the end of the cable. [0003] The present invention seeks to alleviate or at least reduce this disadvantage by providing an improved electrical switch. Contents of the invention [0004] According to the present invention, there is provided an electric switc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H19/08H01H21/12H01R4/48H01H19/20H01H19/56
CPCH01H19/20
Inventor 黎玉娟
Owner DEFOND COMPONENTS