| 摘要 |
An ultra-thin central illuminating keyboard switch, comprising a base (10), a static contact piece (20), a movable contact piece (30), an upper cover (40), an LED lamp (70), a key (50) for controlling the contact or separation between the movable contact piece and the static contact piece, and a reset spring (60) set for the key, wherein the upper cover is mounted on the base, and the key is arranged on the base and exposes the upper cover; the key is axially provided therein with a through hole (51) in the centre, and a mounting groove (541'), a close-fitting embedded groove (542') and a convex rib (543') are arranged on the key to enhance the stability of connection between a key cap and the key; and each of conductive pins (72-75) of the LED lamp is provided with a bending part to enlarge the spacing between welding parts of each conductive pin, so as to avoid the occurrence of short circuit between conductive pins during welding. By means of the assembly and cooperation of all parts and accessories, the overall thickness of the keyboard switch is relatively thin, the occupied volume is small, the assembled structure is simple and firm, the operation performance is stable and reliable, and the degree of comfort of the operation of a user is good, thereby being beneficial to the miniature design and manufacture of the keyboard. |
