US 12,272,504 B2
Keyswitch assembly
Chih-Yao Chi, Taoyuan (TW); Ling-Hsi Chao, Taoyuan (TW); Da-Shan Hsu, 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 Aug. 24, 2022, as Appl. No. 17/821,814.
Claims priority of application No. 110147046 (TW), filed on Dec. 15, 2021; and application No. 111102080 (TW), filed on Jan. 18, 2022.
Prior Publication US 2023/0187147 A1, Jun. 15, 2023
Int. Cl. H01H 13/14 (2006.01); H01H 13/20 (2006.01); G06F 3/02 (2006.01); G06F 3/0354 (2013.01)
CPC H01H 13/14 (2013.01) [H01H 13/20 (2013.01); G06F 3/0202 (2013.01); G06F 3/03543 (2013.01); H01H 2215/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A keyswitch assembly, comprising:
a base having an upper surface and an accommodating space;
a pressable plate having a pressing portion, an acting portion, a blocking piece and a pivotal connection portion, the pressable plate being pivotally connected to the base;
a first magnetic acting member disposed on the acting portion;
a second magnetic acting member disposed on the base corresponding to the first magnetic acting member, wherein the first magnetic acting member and the second magnetic acting member are configured to be attracted or repulsed each other by a magnetic force, so as to provide or change a pressing resistance of the pressing portion;
an adjusting element rotatably or movably disposed on the base, wherein the second magnetic acting member is disposed on the adjusting element; a relative position of the first magnetic acting member to the second magnetic acting member is changed by rotation or movement of the adjusting element;
a circuit board fixed on the base and located in the accommodating space; and
an optical switch disposed on the circuit board,
wherein when the pressing portion is pressed to enable the first magnetic acting member to move relative to the second magnetic acting member, the blocking piece blocks an optical path of the optical switch to trigger the optical switch to generate a trigger signal.