Thin keyboard on-off key group structure generating press touch feel and rebounded rapidly

Abstract

The invention relates to a thin keyboard on-off key group structure generating a press touch feel and rebounded rapidly. The thin keyboard on-off key group structure comprises a mechanical moving part and a switch control part, wherein the mechanical moving part comprises a key cap, a down-press and rapidly-rebounded mechanism; the down-press and rapidly-rebounded mechanism comprises a dual-connection rod, a balance rod and a double-arch elastic sheet, can give out a ringing press touch sound and has the characteristic of being rapidly rebounded after a key is loosen; the mechanical moving part also comprises the key cap, two dual-connection rods and the dual-arch elastic sheet or comprises the key cap, two balance rods and the dual-arch elastic sheet; the switch control part is used for controlling switch-on and switch-off of a key switching circuit and comprises a surface mounted infrared light emitting diode (IR), a surface mounted photoelectric receiving tube (PT), an optical element and a light blocking device for controlling switch-on and switch-off of a switch; and the switch control part can also be a traditional button-type switch control device or a rubber domical switch control device.

Description

technical field [0001] The invention relates to the technical field of electronic device input equipment, in particular to a thin keyboard switch key group structure that produces a pressing touch and quick rebound. Background technique [0002] The X-shaped scissor foot structure of the traditional laptop keyboard keys is set by two connecting rods crossed, and the intersection point is used as the fulcrum to move up and down. When pressing the edge side of the keycap or a certain point at the four corners, the pressed position usually goes down first, and the other parts go down later, causing the keycap to tilt when the side is pressed, which leads to the leakage of input during computer input. And the pressing touch is fuzzy and not crisp, and the rebound speed of the key set is slow. Apple's patent document CN201320675415 proposes a key mechanism and butterfly assembly, which mainly involves a pair of hinged butterfly structures, which are combined to form a hollow spa...

AI Technical Summary

Problems solved by technology

But the disadvantage is that the butterfly mechanism itself does not have the function of rebounding after being pressed. The rebound needs to be realized by the elasticity of the button switch in the middle, resulting in a very short pressing stroke of the keycap, and the pressing force is relatively hard. When making a computer The tactile feeling of pressing is not ideal when inputting. At the same time, the service life of this button switch is not ideal, and it cannot reach more than 50 million times.

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