Abstract: According to various embodiments, there is provided a key assembly including a housing including a sliding groove on an inner surface of the housing and further including a contact surface above the sliding groove; a plunger at least partially fitted into the housing, the plunger including a protrusion; a sound producing member provided at least partially in the sliding groove, the sound producing member configured to produce sound by impacting the contact surface; wherein the sound producing member includes a connecting portion obliquely extending to an abutting portion, the abutting portion arranged below the protrusion; wherein the plunger is displaceable downwards to deform the connecting portion using the protrusion, the deformed connecting portion being reboundable to cause impact the sound producing member to impact the contact surface.

Abstract: According to various embodiments, there is provided a key assembly including a housing including a sliding groove on an inner surface of the housing and further including a contact surface above the sliding groove; a plunger at least partially fitted into the housing, the plunger including a protrusion; a sound producing member provided at least partially in the sliding groove, the sound producing member configured to produce sound by impacting the contact surface; wherein the sound producing member includes a connecting portion obliquely extending to an abutting portion, the abutting portion arranged below the protrusion; wherein the plunger is displaceable downwards to deform the connecting portion using the protrusion, the deformed connecting portion being reboundable to cause impact the sound producing member to impact the contact surface.

Abstract: A thin notebook computer mechanical keyboard includes a reinforcement iron plate, a scissor structure, a keycap, a base, a pressing stopper, a spring and a cover. The scissor structure includes first positioning parts vertically and movably clamped on clamping parts of the reinforcement iron plate, and second positioning parts. The keycap includes fastening parts fastened on the second positioning parts. When the keycap is pressed to a certain extent, an action between a hand touch and a fourth terminal produces a sound of an upward impact against the cover. When the keycap is pressed, the scissor structure maintains balance of the whole keycap without catching the keycap, which ensures a favorable touch feeling. A switch can be directly installed on a printed circuit board and pass through the reinforcement iron plate. The scissor structure maintains balance of the keycap, and balanced movement is achieved without falling short of thinning requirements.

Abstract: A thin notebook computer mechanical keyboard includes a reinforcement iron plate, a scissor structure, a keycap, a base, a pressing stopper, a spring and a cover. The scissor structure includes first positioning parts vertically and movably clamped on clamping parts of the reinforcement iron plate, and second positioning parts. The keycap includes fastening parts fastened on the second positioning parts. When the keycap is pressed to a certain extent, an action between a hand touch and a fourth terminal produces a sound of an upward impact against the cover. When the keycap is pressed, the scissor structure maintains balance of the whole keycap without catching the keycap, which ensures a favorable touch feeling. A switch can be directly installed on a printed circuit board and pass through the reinforcement iron plate. The scissor structure maintains balance of the keycap, and balanced movement is achieved without falling short of thinning requirements.