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KEYBOARD SWITCH

  • US 20160071662A1
  • Filed: 09/07/2015
  • Published: 03/10/2016
  • Est. Priority Date: 09/05/2014
  • Status: Abandoned Application
First Claim
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1. A keyboard switch comprising a top cover, a pressing part, a spring, a bottom base, a fixed contact and a moving contact;

  • wherein the moving contact is installed on the bottom base and a weld leg of the moving contact is extended through the bottom base;

    the fixed contact is installed on the bottom base and a weld leg of the fixed contact is extended through the bottom base;

    the moving contact and the fixed contact are disposed at opposing positions;

    wherein one end of the spring is in contact with the bottom base, and the other end of the spring is in contact with the pressing part;

    one opening is defined in the top cover;

    the pressing part is extended through the opening of the top cover;

    the top cover is assembled to the bottom base;

    wherein the moving contact is provided with a first contact surface and two second contact surfaces of arched shape at two sides of the first contact surface;

    the fixed contact is provided with a third contact surface with at least two protruding portions formed thereon;

    the at least two protruding portions of the fixed contact is in contact with the first contact surface of the moving contact;

    the pressing part is provided with an inclined surface corresponding to the second contact surfaces of the moving contact;

    when the pressing part is pressed to move downwardly, the inclined surface of the pressing part acts on the second contact surfaces of the moving contact and pushes the moving contact away from the fixed contact to cause the at least two protruding portions of the third contact surface of the fixed contact to separate from the first contact surface of the moving contact.

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