Long stroke keyboard switch

Abstract

The invention discloses a long stroke keyboard switch, which comprises an upper cover, a base, a fixed terminal, a mobile terminal and a press piece, wherein a guide post is arranged in the middle of the base, the press piece is installed on the guide post sleeved with a reset spring, the fixed terminal and the mobile terminal are arranged at one side of the press piece in a cavity, one end of the fixed terminal and one end of the mobile terminal penetrate through the base so as to be connected with an external circuit, a bulge is extended from the press piece toward the mobile terminal, a plurality of limiting pins for locating the press piece are arranged at the bottom of the press piece, and base holes, which are of the same quantity of the limiting pins and the bulge and are used for allowing the limiting pins and the bulge to pass through the base, are arranged on the base corresponding to the limiting pins and the bulge. Due to the addition of the base holes, when the press piece is pressed own, the limiting pins and the bulge pass through the base from the base holes, so that the downward pressing stroke of the press piece is increased, the pressing hand feeling is improved while the long stroke keyboard switch becomes thinner; and the long stroke keyboard switch has a simple structure and low cost, and improves the production benefit of enterprises.

Description

technical field [0001] The invention relates to an electronic switch, in particular to a long stroke keyboard switch. Background technique [0002] Many operations of existing devices require the use of key switches as input means. The quality of the key switch determines the experience of the input device, and it is necessary to ensure a good feel and service life. [0003] Most of the movable contacts made of metal sheet in the existing key switch are formed by bending to have an elastic structure. This kind of moving contact piece is mainly formed by a bending part at the bottom to form elasticity to realize the moving contact. However, because keyboards or other mechanical switch input devices are increasingly focused on thinning and thinning, if the upper or lower part is bent to form Elasticity, because of the need to pursue a good feel, and because of the strength of the metal sheet, it is necessary to reserve a certain height to achieve bending. It is not easy to ma...

AI Technical Summary

Problems solved by technology

This kind of moving contact piece is mainly formed by a bending part at the bottom to form elasticity to realize the moving contact. However, because keyboards or other mechanical switch input devices are increasingly focused on thinning and thinning, if the upper or lower part is bent to form Elasticity, because of the need to pursue a good feel, and because of the strength of the metal sheet, it is necessary to reserve a certain height to achieve bending. It is not easy to make the product lighter and thinner. Insufficient key travel will also cause poor hand feeling, and the structure of the moving contact piece is relatively complicated, and the production cost is relatively high

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