公开(公告)号：US20140367240A1

公开(公告)日：2014-12-18

申请号：US14272506

申请日：2014-05-08

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

Inventor： Chin-Hung Lin ,  Liang-Ta Yeh

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

CPC classification number: H01H3/125 ,  H01H2209/01 ,  H01H2221/058

Abstract: A key switch disposed on a base of a keyboard is disclosed. The key switch includes a key cap, an edge plate, a linkage bar and a sliding end. The key cap is disposed above the base. The edge plate is connected to the base, and a slot is formed on the edge plate. The linkage bar is for connecting the keycap and the base. The sliding end is connected to an end of the linkage bar, and the sliding end is slidably disposed in the slot and abuts against a top surface of the base, wherein a cross section area of the sliding end is smaller than a cross section area of the end of the linkage bar.

Abstract translation: 公开了一种设置在键盘底座上的钥匙开关。 钥匙开关包括钥匙盖，边缘板，连杆和滑动端。 钥匙盖位于底座上方。 边缘板连接到基座，边缘板上形成一个槽。 连接杆用于连接键帽和底座。 滑动端连接到连杆的一端，并且滑动端可滑动地设置在槽中并抵靠在基座的顶表面上，其中滑动端的横截面面积小于 连杆的末端。

公开(公告)号：US20210304981A1

公开(公告)日：2021-09-30

申请号：US17216717

申请日：2021-03-30

Applicant: DARFON ELECTRONICS CORP.

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

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

Abstract: A keyswitch support connection structure incudes a bottom plate portion and a joining portion firmly joined with a joining hole of a bottom plate portion to form a support connection portion. In an embodiment, a cantilever plate extends upward from the joining hole. The joining portion encapsulates a holding structure of the cantilever plate. In another embodiment, a protruding bridge portion connected across two sides of the joining hole. The joining portion encapsulates the protruding bridge portion. In another embodiment, the joining portion has a wing portion protruding from a bottom surface of the bottom plate portion and extending parallel to the bottom surface. A keyswitch structure includes a base with the keyswitch support connection structure, a keycap, and two keyswitch supports. The two keyswitch supports are connected to and between the keycap and the base; therein, one of the keyswitch supports is rotatably connected to the support connection portion.

公开(公告)号：US20200381194A1

公开(公告)日：2020-12-03

申请号：US16512325

申请日：2019-07-15

Applicant: DARFON ELECTRONICS CORP.

Inventor： Ming-Yuan Hsieh ,  Liang-Ta Yeh

IPC: H01H13/14 ,  H01H3/12

Abstract: A keyswitch structure includes a base plate, a keycap, a scissors support connecting the keycap and the base plate, a linking support rotatably disposed on the base plate, a movable part movably disposed relative to the base plate, and a magnetic part on the movable part. The linking support includes a magnetic portion and a driving portion. The magnetic part and the magnetic portion produce a magnetic attraction force therebetween. When the movable part is located at a first position, the magnetic part is located under the magnetic portion, and the magnetic attraction force drives the keycap through the linking support to move away relative to the base plate. When the movable part moves from the first position to a second position, the magnetic part moves away relative to the magnetic portion, so that the magnetic attraction force decreases so as to make the keycap move toward the base plate.

公开(公告)号：US10804049B1

公开(公告)日：2020-10-13

申请号：US16789440

申请日：2020-02-13

Applicant: DARFON ELECTRONICS CORP.

Inventor： Ming-Yuan Hsieh ,  Liang-Ta Yeh ,  Po-Chun Hou ,  Chin-Hung Lin

IPC: H01H13/14 ,  H01H13/52

Abstract: A keyswitch structure includes a base plate, a keycap, a scissors support connecting the keycap and the base plate, a linking support rotatably disposed on the base plate, a movable part movably disposed relative to the base plate, and a magnetic part on the movable part. The linking support includes a magnetic portion and a driving portion. The magnetic part and the magnetic portion produce a magnetic attraction force therebetween. When the movable part is located at a first position, the magnetic part is located under the magnetic portion, and the magnetic attraction force drives the keycap through the linking support to move away relative to the base plate. When the movable part moves from the first position to a second position, the magnetic part moves away relative to the magnetic portion, so that the magnetic attraction force decreases so as to make the keycap move toward the base plate.

公开(公告)号：US10332695B2

公开(公告)日：2019-06-25

申请号：US16027395

申请日：2018-07-05

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H13/70 ,  H01H3/12 ,  H01H13/705

Abstract: A key switch includes a baseplate, a circuit layer, a keycap and a support rod. The baseplate has a hook and a first through hole neighboring to the hook. The circuit layer includes a plurality of superimposed sublayers disposed above the baseplate and having a through hole structure passing through the sublayers; a portion of one of the sublayers extends in the through hole structure over the first through hole and forms a resilient portion neighboring to the hook. Two sides of the resilient portion connect to the circuit layer. The keycap is disposed above the baseplate and can move upward and downward in respect to the baseplate. The support rod has a first portion, movably connecting to the keycap, and a second portion, engaged with the hook. The resilient portion extends beneath and abuts against the second portion for buffering a collision between the second portion and the baseplate.

公开(公告)号：US20180025858A1

公开(公告)日：2018-01-25

申请号：US15652266

申请日：2017-07-18

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chin-Hung Lin ,  Liang-Ta Yeh

IPC: H01H13/02 ,  H01H13/20 ,  H01H13/04 ,  H01H13/14

CPC classification number: H01H13/023 ,  H01H3/125 ,  H01H13/04 ,  H01H13/14 ,  H01H13/20 ,  H01H2213/00 ,  H01H2219/036 ,  H01H2233/07

Abstract: A light emitting keyswitch includes a board, a cap, a lifting mechanism disposed between the board and the cap, a membrane switch including first and second substrates, an LED, and a transparent hollow elastic body. The first substrate has a first outer surface and a first inner surface. The second substrate has a second outer surface and a second inner surface. A switch circuit is disposed between the first and second inner surfaces. A copper circuit is formed on the second inner surface. A hole is formed on the first substrate. The LED is disposed on the second substrate, passes through the hole and is coupled to the copper circuit. The transparent hollow elastic body is attached to the first outer surface for covering the LED and the hole and is located under the cap. When the cap is pressed, the lifting mechanism or the cap triggers the switch circuit.

公开(公告)号：US11424090B2

公开(公告)日：2022-08-23

申请号：US17216717

申请日：2021-03-30

Applicant: DARFON ELECTRONICS CORP.

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

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

Abstract: A keyswitch support connection structure incudes a bottom plate portion and a joining portion firmly joined with a joining hole of a bottom plate portion to form a support connection portion. In an embodiment, a cantilever plate extends upward from the joining hole. The joining portion encapsulates a holding structure of the cantilever plate. In another embodiment, a protruding bridge portion connected across two sides of the joining hole. The joining portion encapsulates the protruding bridge portion. In another embodiment, the joining portion has a wing portion protruding from a bottom surface of the bottom plate portion and extending parallel to the bottom surface. A keyswitch structure includes a base with the keyswitch support connection structure, a keycap, and two keyswitch supports. The two keyswitch supports are connected to and between the keycap and the base; therein, one of the keyswitch supports is rotatably connected to the support connection portion.

公开(公告)号：US11189442B2

公开(公告)日：2021-11-30

申请号：US16512415

申请日：2019-07-16

Applicant: DARFON ELECTRONICS CORP.

Inventor： Ming-Yuan Hsieh ,  Ling-Hsi Chao ,  Liang-Ta Yeh

IPC: H01H13/14 ,  H01H1/54 ,  H01H13/20 ,  H01H3/12

Abstract: A keyswitch structure includes a base plate, a keycap, a lift mechanism connecting the keycap and the base plate, a movable part movably disposed relative to the base plate, a linking support, and a magnetic part on the base plate. The linking support has a pivotal connection portion, a magnetic portion, and a driving portion. The magnetic part and the magnetic portion produce a magnetic attraction force therebetween. When the movable part is located at a first position, the pivotal connection portion is rotatably disposed on a protruding portion of the movable part, and the magnetic attraction force drives the keycap through the linking support to move away relative to the keycap. When the movable part moves from the first position to a second position, the protruding portion moves away, so that the pivotal connection portion falls down and the keycap moves toward the base plate.

公开(公告)号：US10049828B2

公开(公告)日：2018-08-14

申请号：US15796473

申请日：2017-10-27

Applicant: Darfon Electronics Corp.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H13/70 ,  H01H3/12 ,  H01H13/705

Abstract: A key switch includes a baseplate, a circuit layer, a keycap and a support rod. The baseplate has a hook and a first through hole neighboring to the hook. The circuit layer includes a first sublayer disposed above the baseplate and having a second through hole, and a second sublayer disposed above the first sublayer and having a third through hole; a portion of the second sublayer extends over the second through hole and forms a first resilient portion; the first resilient portion has four sides, two of which connect to the second sublayer; and the first resilient portion is neighboring to the hook. The keycap is disposed above the baseplate and can move upward and downward in respect to the baseplate. The support rod has a first portion and a second portion; the first portion movably connects to the keycap and the second portion engages the hook.

公开(公告)号：US20160284484A1

公开(公告)日：2016-09-29

申请号：US15049153

申请日：2016-02-22

Applicant: Darfon Electronics Corp.

Inventor： Pen-Hui Liao ,  Liang-Ta Yeh

IPC: H01H3/12

CPC classification number: H01H3/125 ,  H01H13/705 ,  H01H2209/046 ,  H01H2221/062

Abstract: A key switch includes a baseplate, a circuit layer, a keycap and a support rod. The baseplate has a hook and a first through hole neighboring to the hook. The circuit layer includes a first sublayer disposed above the baseplate and having a second through hole, and a second sublayer disposed above the first sublayer and having a third through hole; a portion of the second sublayer extends over the second through hole and forms a first resilient portion; the first resilient portion has four sides, two of which connect to the second sublayer; and the first resilient portion is neighboring to the hook. The keycap is disposed above the baseplate and can move upward and downward in respect to the baseplate. The support rod has a first portion and a second portion; the first portion movably connects to the keycap and the second portion engages the hook.

Abstract translation: 键开关包括底板，电路层，键帽和支撑杆。 底板具有钩和与钩相邻的第一通孔。 电路层包括设置在基板上方并具有第二通孔的第一子层和设置在第一子层上方并具有第三通孔的第二子层; 第二子层的一部分在第二通孔上延伸并形成第一弹性部分; 第一弹性部分具有四个侧面，其中两个连接到第二子层; 并且第一弹性部分与钩相邻。 键帽设置在基板上方，并可相对于底板向上和向下移动。 支撑杆具有第一部分和第二部分; 第一部分可移动地连接到键帽，并且第二部分接合钩。