公开(公告)号：US20220406539A1

公开(公告)日：2022-12-22

申请号：US17841795

申请日：2022-06-16

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun HSIEH ,  Ling-Hsi CHAO ,  Shao-Lun HSIAO ,  Chen YANG

IPC: H01H13/20 ,  H01H13/14 ,  H01H13/70 ,  H01H13/10

Abstract: A key structure includes a base, a movable mechanism movably positioned on the base, a sound generating member positioned on the base, and an adjusting unit movable relative to the base to be at a first position or a second position. The sound generating member has a hitting portion, which extends corresponding to an impact surface. When the adjusting unit is at the first position, and a pressing force is applied to the movable mechanism, the movable mechanism moves relative to the base and drives the sound generating member to move, so the hitting portion moves to hit the impact surface to generate a hitting sound. When the adjusting unit is at the second position, the adjusting unit restricts movement of the hitting portion, so the hitting portion cannot move to hit the impact surface.

公开(公告)号：US20220406540A1

公开(公告)日：2022-12-22

申请号：US17841801

申请日：2022-06-16

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun HSIEH ,  Ling-Hsi CHAO ,  Shao-Lun HSIAO ,  Chen YANG

IPC: H01H13/20 ,  H01H13/10 ,  H01H13/14

Abstract: A key structure includes a base and a linkage mechanism. The linkage mechanism includes a plurality of linking members movably connected to each other. The plurality of linking members includes at least two linking members rotatably positioned on the base, respectively. When a pressing force is applied to the linkage mechanism, the plurality of linking members move associated with each other to restrict a rotation range of the plurality of linking members with respect to the base.

公开(公告)号：US20230187147A1

公开(公告)日：2023-06-15

申请号：US17821814

申请日：2022-08-24

Applicant: Darfon Electronics Corp.

Inventor： Chih-Yao CHI ,  Ling-Hsi CHAO ,  Da-Shan HSU ,  Shao-Lun HSIAO ,  Yu-Chun HSIEH

IPC: H01H13/14 ,  H01H13/20

CPC classification number: H01H13/14 ,  H01H13/20 ,  G06F3/03543 ,  H01H2215/00

Abstract: A keyswitch assembly includes a base, a pressable plate, a first magnetic acting member and a second magnetic acting member. An accommodating space is defined within the base, and an upper surface of the base is provided with a connecting portion. The pressable plate includes a pressing portion, an acting portion and a pivotal connection portion located between the pressing portion and the acting portion and pivotally connected to the connecting portion. The first magnetic acting member is disposed on the acting portion; the second magnetic acting member is disposed on the base corresponding to the first magnetic acting member. The keyswitch assembly is configured such that the first magnetic acting member and the second magnetic acting are attracted or repulsed each other by a magnetic force, so as to provide or change a pressing resistance of the pressing portion.

公开(公告)号：US20210012983A1

公开(公告)日：2021-01-14

申请号：US17037988

申请日：2020-09-30

Applicant: Darfon Electronics Corp.

Inventor： Ling-Hsi CHAO

IPC: H01H13/7065 ,  H01H3/12

Abstract: A keyswitch structure includes a keycap, a base, and two supports pivotally connected to each other relative to a rotation axis and connected to and between the keycap and the base. One of the supports includes a first shaft recess, a first shaft portion, and a division slot formed therebetween; the other support includes a second shaft recess, a second shaft portion, and a division wall therebetween. The two supports are pivotally connected relative to the rotation axis by the first shaft portion and the second shaft portion rotatably disposed in the first shaft recess and the second shaft recess respectively. Therein, the division wall is inserted into the division slot. The keycap can move up and down relative to the base through the two supports.