key structure

Abstract

The invention relates to a key structure. The key structure comprises a bottom plate, a keycap, a circuit board and a microswitch; a switch hole is formed in the bottom plate; the keycap is arranged above the bottom plate in a manner that the keycap can move relative to the bottom plate; the circuit board is arranged on the bottom plate; a through hole is formed in the circuit board; the microswitch is located below the keycap and passes through the through hole so as to be accommodated in the switch hole; the microswitch is electrically connected with the circuit board; and when moving towards the bottom plate, the keycap triggers the microswitch. According to the key structure provided by the invention, the microswitch is adopted, so that the pressing hand feeling of a user can be enhanced; the circuit board is arranged on the bottom plate, and the hole for accommodating the microswitch is formed in the circuit board, and therefore, the thickness of the circuit board and the bottom plate can be fully utilized, and the overall height of the key structure can be effectively reduced.

Description

technical field [0001] The present invention generally relates to a key structure, and specifically, the present invention relates to a key structure that improves the pressing feel and can effectively reduce the height of the key. Background technique [0002] Conventional keyboard structures generally use thin film circuit layers as switching elements for signal generation. Generally speaking, the thin film circuit layer is composed of an upper circuit layer, a lower circuit layer and an interlayer separating the upper and lower circuit layers, wherein the upper and lower circuit layers have a plurality of corresponding switch contacts as trigger circuits for a plurality of buttons. When the keycap is pressed to trigger the membrane circuit layer, the upper circuit layer is deformed so that the switch contacts of the upper circuit layer contact the corresponding switch contacts of the lower circuit layer, and then the membrane switch is turned on to generate a signal. How...

AI Technical Summary

Problems solved by technology

However, the thin film circuit layer is easily damaged by frequent use or improper application of force, and is difficult to repair

Furthermore, when the trigger circuit corresponding to a certain key in the thin film circuit layer is damaged, the corresponding trigger circuit cannot be repaired for an individual key, but the thin film circuit layer of the entire keyboard must be replaced, which makes the maintenance cost relatively high

[0003] In addition, when the user presses the keycap to trigger the thin film circuit layer, there is a lack of distinct level difference feedback, resulting in a poor pressing feel, which cannot satisfy the user's sense of control during the game operation

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