The disclosure provides a keyboard including a bottom plate, a key unit and a shielding layer. The bottom plate includes a through hole. The key unit is disposed on the bottom plate. The shielding layer covering a portion of the bottom plate includes a main part and an extension part extending from the main part toward the through hole. The shielding layer is provided with a black surface, and an orthographic projection of the key unit on the shielding layer overlaps the black surface.

A keyswitch includes a base plate, a keycap, a balance bar, at least one buffer layer, and a membrane switch layer disposed on a base plate. A linking portion of the base plate protruding upward penetrates through the membrane switch layer such that a contact portion of the membrane switch layer is located proximate to the linking portion. A connecting section of the balance bar passes through a through hole of the linking portion. The at least one buffer layer is formed on a lower surface of the contact portion, and extends along a first lateral path and a second lateral path. The contact portion supports the connecting section to abut against a top wall of the linking portion. When the keycap moves upward and downwards, the connecting section pivotally slides on the contact portion, between the first lateral path and the second lateral path.

A switch assembly is configured to be mounted to a lower cover of the junction box assembly. The switch assembly includes a holder, the holder is configured to removably coupled to the lower cover. The holder includes a pocket. The switch assembly further includes a switch. The hook is configured to engage the lower cover and is dimensioned to be seated within the pocket of the holder. The switch includes a hook. The hook is configured to pull the switch towards the lower cover so as to pinch the holder between the lower cover and the switch. Accordingly, the hook presses the switch against a bottom surface of the lower cover so as to eliminate a rattle when the switch is held in suspension beneath the lower cover of the junction box assembly.

A keyswitch structure includes a keycap having a lower surface and an engaging portion protruding from the lower surface, the keycap moving to a lower position when the keycap is pressed, a linking bar coupled with the engaging portion, a distal end of the engaging portion being lower than the linking bar when the keycap moves to the lower position, a baseplate disposed below the keycap, the baseplate having a recessed space corresponding to the engaging portion, and a buffer film disposed on the baseplate, the buffer film substantially extending over the recessed space and having a deformable portion corresponding to the recessed space, wherein when the keycap moves toward the baseplate to the lower position, the distal end of the engaging portion pushes the deformable portion to make the deformable portion extend into the recessed space.

A switch component includes a spring plate and a cover of rubber. The cover of rubber covers at least one part of an upper surface of the spring plate. The cover of rubber includes at least one pair of supporting portions that support the spring plate.

The disclosure provides a keyboard including a bottom plate, a key unit and a shielding layer. The bottom plate includes a through hole. The key unit is disposed on the bottom plate. The shielding layer covering a portion of the bottom plate includes a main part and an extension part extending from the main part toward the through hole. The shielding layer is provided with a black surface, and an orthographic projection of the key unit on the shielding layer overlaps the black surface.

An electromagnetic relay including: a relay body that includes a first terminal; a base that includes a second terminal which contacts the first terminal and supports the relay body; an outer cover that covers the relay body; and an elastic member that is attached between the relay body and the outer cover.

The present utility model discloses a keyboard. The keyboard comprises keys, a fixing frame, long flexible strips, a key locking plate, a flexible sheet, a PCB board, a flexible base, and a bottom cap. The key locking plate is mounted on the upper surface of the flexible sheet. The flexible sheet is mounted on the upper surface of the PCB board. The PCB board is mounted on the flexible base. The flexible base is mounted on the bottom cap. The key locking plate, the flexible sheet, the PCB board and the flexible base fixed in the housing. The long flexible strips are mounted on all sides of the key locking plate and in the fixing frame.

A switch assembly is configured to be mounted to a lower cover of the junction box assembly. The switch assembly includes a holder, the holder is configured to removably coupled to the lower cover. The holder includes a pocket. The switch assembly further includes a switch. The hook is configured to engage the lower cover and is dimensioned to be seated within the pocket of the holder. The switch includes a hook. The hook is configured to pull the switch towards the lower cover so as to pinch the holder between the lower cover and the switch. Accordingly, the hook presses the switch against a bottom surface of the lower cover so as to eliminate a rattle when the switch is held in suspension beneath the lower cover of the junction box assembly.

The disclosure provides a keyboard includes a bottom plate, a key unit and a shielding layer. The bottom plate includes a body part and a through hole. The key unit is disposed on the body part. The shielding layer covers a portion of the bottom plate and comprising a main part disposed on the body part and an extension part extending from the main part toward the through hole, wherein the extension part has a hole with a size larger than or substantially equal to a size of the through hole.