| 摘要 |
Disclosed is a key switch (11), a key unit (1) and a computer keyboard (100) using the key unit (1). The key switch (11) comprises an operating body (111), a fixing bracket (113), a first metal spring (115), a second metal spring (117) and a thin film switch layer (119), wherein the operating body (111) comprises a lead column (1116), the fixing bracket (113) comprises a first fixing bracket (114) and a second fixing bracket (116) which are provided in a cooperative manner, the second fixing bracket (116) comprises a lead pipe (1163), the lead column (1116) penetrates through the first fixing bracket (113), is partially inserted into the lead pipe (1163) and elastically abuts against the second metal spring (117), the first metal spring (115) is sheathed on the outside of the lead pipe (1163), the second metal spring (117) is accommodated in the lead pipe (1163), an end thereof elastically abuts against the lead column (1116), the other, opposite end contacts with or is arranged at a distance from a surface of the thin film switch layer (119), and the thin film switch layer (119) is provided on the outside of the fixing bracket (113). |
