Key structure

A key and keycap technology, applied in the field of key structures with conductive structures, can solve the problems of membrane switch layer fatigue, poor trigger reliability, etc.
CN110189950AActive Publication Date: 2019-08-30DARFON ELECTRONICS (SUZHOU) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DARFON ELECTRONICS (SUZHOU) CO LTD
Publication Date
2019-08-30

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Abstract

The invention discloses a key structure. The key structure includes a key cap, a circuit board, a lifting mechanism and a conductive rack, wherein the circuit board includes a first connection pad anda second connection pad, the lifting mechanism is arranged between the circuit board and the key cap, the key cap moves up and down through the lifting mechanism relative to the circuit board, the conductive rack is arranged on the lifting mechanism to move up and down along the lifting mechanism, the conductive rack includes a first conductive portion and a second conductive portion which are respectively arranged on the first connection pad and the second connection pad, a motion path of the first conductive portion and a motion path of the second conductive portion respectively reach the first connection pad and the second connection pad, when the first conductive portion and the second conductive portion respectively contact the first connection pad and the second connection pad, thefirst connection pad, the first conductive portion, the second conductive portion and the second connection pad form a crossing current path.
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Description

technical field

[0001] The invention relates to a key structure, and in particular to a key structure with a conductive structure. Background technique

[0002] Most of the traditional button structures use elastic bodies to squeeze the membrane switch layer, so that the originally separated upper and lower electrodes in the membrane switch layer contact to generate a trigger signal. The membrane switch layer itself is a soft structure, so to make the upper and lower electrodes of the membrane switch layer contact, it is necessary to overcome the resistance of the material of the membrane switch layer itself, so that the upper and lower electrodes can approach and contact. However, due to the need to overcome the resistance of the material of the membrane switch layer itself, coupled with the fatigue problem of the material of the membrane switch layer itself, the triggering reliability of the conventional button structure is not good. Contents of the invention

[0003] T...

Claims

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