公开(公告)号：US20190221384A1

公开(公告)日：2019-07-18

申请号：US16245213

申请日：2019-01-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chih-Hao Chen ,  Po-Wei Tsai ,  Chun-Yuan Wang ,  Kuan-Te Lin ,  Shao-Wei Yang ,  Ling-Hsi Chao

IPC: H01H13/7065 ,  H01H3/12 ,  H01H13/14

Abstract: A keyswitch structure includes a base plate, a keycap, a first support, and a second support. The keycap is located above the base plate. The first support is connected to and between the keycap and the base plate and has an upper connection portion, a lower connection portion, and a protruding limitation portion. The upper connection portion is located between the lower connection portion and the protruding limitation portion. The first support is rotatably connected to the keycap and the base plate through the upper connection portion and the lower connection portion respectively. The protruding limitation portion is located close to and under the cap body. The second support is connected to and between the keycap and the base plate. The keycap moves up and down relative to the base plate through the first support and the second support.

公开(公告)号：US12131874B2

公开(公告)日：2024-10-29

申请号：US17216707

申请日：2021-03-30

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Chun Hou ,  Chin-Hung Lin ,  Liang-Ta Yeh ,  Ling-Hsi Chao

IPC: H01H13/14 ,  H01H3/12 ,  H01H13/10 ,  H01H13/705

CPC classification number: H01H13/14 ,  H01H3/12 ,  H01H13/10 ,  H01H13/705

Abstract: A keyswitch support connection structure incudes a bottom plate portion, a cantilever plate, and a joining portion. The cantilever plate extends upward from a joining hole of the bottom plate portion and has a holding structure. The joining portion and the joining hole are firmly engaged with each other. The joining portion encapsulates the holding structure. The joining portion and the bottom plate portion jointly form or the joining portion alone forms a support connection portion. A keyswitch structure includes a base, a keycap above the base, and first and second keyswitch supports connected to and between the keycap and the base. The base includes the above keyswitch support connection structure. The first keyswitch support is rotatably connected to the support connection portion.

公开(公告)号：US11990295B2

公开(公告)日：2024-05-21

申请号：US18066412

申请日：2022-12-15

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Ling-Hsi Chao ,  Shao-Lun Hsiao ,  Yu-Chun Hsieh

IPC: H01H3/12 ,  H01H13/83

CPC classification number: H01H3/125 ,  H01H13/83 ,  H01H2219/018 ,  H01H2219/062

Abstract: An illuminated keyswitch includes a keycap, a pair of frames adapted to support the keycap in an up-down movement, the pair of frames disposed corresponding to each other and substantially 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. 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.

公开(公告)号：US11923159B2

公开(公告)日：2024-03-05

申请号：US18081712

申请日：2022-12-15

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Ling-Hsi Chao ,  Shao-Lun Hsiao ,  Yu-Chun Hsieh

IPC: H01H3/12 ,  H01H13/14 ,  H01H13/70

CPC classification number: H01H3/125 ,  H01H13/14 ,  H01H13/70 ,  H01H2233/07

Abstract: A keyswitch structure includes a keycap support mechanism and a keycap that is supported by the keycap support mechanism in a vertical direction. The keycap support mechanism includes a base and two supports. The base has two sliding slots. Each sliding slot has an opening in a horizontal direction and an obstruction block at the opening. The horizontal direction is perpendicular to the vertical direction. Each support has a sliding portion and a linkage portion. The sliding portions slide parallel to the horizontal direction in the sliding slots correspondingly. The obstruction block prevents the corresponding sliding portion from disengaging from the corresponding sliding slot. The two linkage portions push against each other in line contact, so that the two supports are mutually driven through the two linkage portions.

公开(公告)号：US20230197365A1

公开(公告)日：2023-06-22

申请号：US18066412

申请日：2022-12-15

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Ling-Hsi Chao ,  Shao-Lun Hsieh ,  Yu-Chun Hsieh

IPC: H01H3/12 ,  H01H13/83

CPC classification number: H01H3/125 ,  H01H13/83 ,  H01H2219/062 ,  H01H2219/018

Abstract: An illuminated keyswitch includes a keycap, a pair of frames adapted to support the keycap in an up-down movement, the pair of frames disposed corresponding to each other and substantially 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. 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.

公开(公告)号：US11099666B2

公开(公告)日：2021-08-24

申请号：US16795602

申请日：2020-02-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen-Yun Su ,  Da-Shan Hsu ,  Shao-Lun Hsiao ,  Ling-Hsi Chao

IPC: G06F3/0362 ,  G06F3/0354 ,  G06F3/03

Abstract: A wheel device applied to a mouse includes a base, a wheel module, a sheltering component and an optical detecting module. The base has a holder. The wheel module is disposed on the base and includes a roller and a wheel. The roller includes a rolling surface, an axle and a plurality of rib structures. The axle is rotatably disposed on the holder in an axle direction. The rib structures are disposed inside the rolling surface. The wheel is disposed on the rolling surface of the roller. The sheltering component includes light sheltering areas and light penetrating areas disposed on the roller or the wheel and around the axle direction. Each light sheltering area is perpendicular to the axle. The optical detecting module has an optical emitter and an optical receiver. The optical receiver is adapted to receive an optical signal emitted by the optical emitter.

公开(公告)号：US11049673B2

公开(公告)日：2021-06-29

申请号：US16871064

申请日：2020-05-11

Applicant: DARFON ELECTRONICS CORP.

Inventor： Ling-Hsi Chao

IPC: H01H13/70 ,  H01H13/7065 ,  H01H13/803 ,  G06F3/02 ,  H01H13/86

Abstract: A key switch includes a key cap, a base, a support device and a bracket. The base has a first magnetic area. The support device is disposed between the key cap and the base. The bracket is movably connected to the support device. The bracket has a second magnetic area corresponding to the first magnetic area. When the key cap is not pressed, a magnetic attraction force between the first and second magnetic areas keeps the key cap at a non-pressed position. When the key cap is pressed by an external force, the key cap moves with the support device from the non-pressed position to a pressed position. When the external force is released, the second magnetic area moves toward the first magnetic area due to the magnetic attraction force, such that the key cap moves with the support device from the pressed position to the non-pressed position.

公开(公告)号：US10002725B2

公开(公告)日：2018-06-19

申请号：US15390748

申请日：2016-12-27

Applicant: DARFON ELECTRONICS (SUZHOU) CO., LTD. ,  DARFON ELECTRONICS CORP.

Inventor： Ling-Hsi Chao

IPC: H01H13/70 ,  H01H13/52 ,  H01H13/14

CPC classification number: H01H13/52 ,  H01H3/122 ,  H01H13/14 ,  H01H13/7065 ,  H01H2221/09 ,  H01H2227/036

Abstract: A keyswitch includes a board, a cap, and a support device. The board has first and second bending members and a main body extending along X and Y axes perpendicular to each other. An included angle between a first abutting surface of the first bending member and the X-axis and an included angle between a second abutting surface of the second bending member and the X-axis are greater than 0°. The support device includes first and second support members having first and second hook structures respectively. When the cap is pressed, the first and second hook structures slide on the first and second abutting surfaces respectively to deform the first and second hook structures. When the cap is released, the deformed first and second hook structures drive the first and second support members to slide relatively for making the cap return to a non-pressed position.

公开(公告)号：USRE50000E1

公开(公告)日：2024-06-04

申请号：US17184503

申请日：2021-02-24

Applicant: Darfon Electronics Corp.

Inventor： Chih-Hao Chen ,  Chih-Hung Chen ,  Chin-Hung Lin ,  Ling-Hsi Chao ,  Chih-Chung Yen

IPC: H01H13/14 ,  H01H3/12 ,  H01H13/10 ,  H01H13/50

CPC classification number: H01H13/14 ,  H01H3/125 ,  H01H13/10 ,  H01H13/50 ,  H01H2221/03

Abstract: A keyswitch structure includes a base, a keycap, a first support, a second support, and a connection structure. The keycap moves up and down relative to the base through the first support and the second support. The connection structure is disposed on the base and includes a vertical-motion limiting part and a horizontal-motion limiting part. The first support includes a rod-shaped connection portion and is connected to the connection structure through the rod-shaped connection portion. The vertical-motion limiting part prevents the rod-shaped connection portion from vertically moving. The horizontal-motion limiting part limits the horizontal movement of the rod-shaped connection portion. The vertical-motion limiting part and the horizontal-motion limiting part are separated in the rotation axis of the rod-shaped connection portion.

公开(公告)号：US11705294B2

公开(公告)日：2023-07-18

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 ,  H01H13/10 ,  H01H13/70

CPC classification number: H01H13/20 ,  H01H13/10 ,  H01H13/14 ,  H01H13/70 ,  H01H2215/03

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.