US 11,990,295 B2
Keyswitch and illuminated keyswitch
Chen Yang, Taoyuan (TW); Ling-Hsi Chao, Taoyuan (TW); Shao-Lun Hsiao, Taoyuan (TW); and Yu-Chun Hsieh, Taoyuan (TW)
Assigned to DARFON ELECTRONICS CORP., Taoyuan (TW)
Filed by Darfon Electronics Corp., Taoyuan (TW)
Filed on Dec. 15, 2022, as Appl. No. 18/066,412.
Claims priority of provisional application 63/361,375, filed on Dec. 16, 2021.
Claims priority of provisional application 63/356,558, filed on Jun. 29, 2022.
Prior Publication US 2023/0197365 A1, Jun. 22, 2023
Int. Cl. H01H 3/12 (2006.01); H01H 13/83 (2006.01)
CPC H01H 3/125 (2013.01) [H01H 13/83 (2013.01); H01H 2219/018 (2013.01); H01H 2219/062 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An illuminated keyswitch, comprising:
a keycap;
a pair of frames adapted to support the keycap in an up-down movement, each of the pair of frames having a pair of side arms and a pair of bend structures respectively disposed on middle sections of the pair of side arms, the pair of bend structures of one of the pair of frames correspondingly coupled to the pair of bend structures of the other of the pair of frames, so the pair of frames is rotatably coupled to each other to define an inner space under the keycap;
a pair of elastic members connecting the pair of frames to be located at two opposite sides of the inner space, respectively; and
an illumination light source disposed between the pair of elastic members in the inner space and adapted to provide an illumination light,
wherein during the up-down movement of the keycap, a vertical projection of the pair of frames surrounds the inner space without interfering therewith, so the illumination light passes the inner space to illuminate the keycap.