公开(公告)号：US20190287744A1

公开(公告)日：2019-09-19

申请号：US16017129

申请日：2018-06-25

Applicant: Primax Electronics Ltd.

Inventor： Ming-Han Wu ,  Che-Wei Yang ,  Yi-Wei Chen

IPC: H01H13/7065 ,  H01H13/807 ,  G06F3/02

Abstract: A keyboard device includes a key, a base plate, a membrane circuit board and a buffering part. The membrane circuit board is disposed on the base plate. The key includes a keycap and a stabilizer bar. The stabilizer bar is connected between the keycap and the base plate. The stabilizer bar includes a main bar part, a first linking part and a first insertion part. The first linking part is connected between the main bar part and the first insertion part. The buffering part is disposed on the base plate or the membrane circuit board and located under the first linking part. While a keycap is moved downwardly relative to the base plate, the linking part of the stabilizer bar is contacted with the buffering part. The contact point between the linking part of the stabilizer bar and the buffering part is used as a fulcrum.

公开(公告)号：US10147568B1

公开(公告)日：2018-12-04

申请号：US15811639

申请日：2017-11-13

Applicant: Primax Electronics Ltd.

Inventor： Tien-Yu Yeh ,  Che-Wei Yang ,  Chun-Yuan Liu

IPC: H01H9/26 ,  H01H13/72 ,  H01H13/76 ,  H01H13/705

Abstract: A keyboard device includes a base plate, a connecting element and a keycap. The connecting element is connected with a hook of the keycap and the base plate. The keycap includes an elastic structure, a first hooking part and a second hooking part. The elastic structure hook is installed on an inner surface of the keycap. The first hooking part is arranged beside a first side of the elastic structure. The second hooking part is arranged beside a second side of the elastic structure. While the connecting element is assembled with the keycap, the first hooking part and the second hooking part are pushed by the connecting element and the keycap is bent in response to the elasticity of the elastic structure. Consequently, the first hooking part is moved away from the second hooking part.

公开(公告)号：US11177083B1

公开(公告)日：2021-11-16

申请号：US17161153

申请日：2021-01-28

Applicant: Primax Electronics Ltd.

Inventor： Ming-Han Wu ,  Che-Wei Yang ,  Yi-Wei Chen ,  Chien-Hung Liu ,  Lei-Lung Tsai

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

Abstract: A key structure includes a keycap, a base plate and a wing-type supporting element. When the keycap is depressed in response to an external force, a first frame and a second frame of the wing-type supporting element are pushed by each other through protrusion structures and rotating shafts. Consequently, the first frame and the second frame can be swung relative to the base plate.

公开(公告)号：US09965046B2

公开(公告)日：2018-05-08

申请号：US15339243

申请日：2016-10-31

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Che-Wei Yang ,  Yi-Chen Wang ,  Wei-Yung Huang

IPC: G06F1/16 ,  G06F3/02 ,  H01H13/7065

CPC classification number: G06F3/0202 ,  G06F1/1666 ,  H01H3/125 ,  H01H13/7065 ,  H01H2203/036 ,  H01H2221/064 ,  H01H2223/042 ,  H01H2231/002 ,  H01H2233/03

Abstract: A keyboard and a notebook computer with the keyboard are provided. The keyboard is installed on the notebook computer. The keyboard includes a membrane circuit board, a key frame, a key, a linking rod and a fixing plate. The linking rod is connected with the key frame. The fixing plate is disposed under the key frame. While the linking rod is rotated relative to the key frame to push the key frame, a position-limiting structure of the key frame is moved along a guiding structure of the fixing plate. Consequently, the key frame is limited to be moved in a first axial direction. Moreover, when the key frame is moved to a locked position at the same level with a keycap of the key, the keycap cannot be pressed down.

公开(公告)号：US20170371422A1

公开(公告)日：2017-12-28

申请号：US15339243

申请日：2016-10-31

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Che-Wei Yang ,  Yi-Chen Wang ,  Wei-Yung Huang

IPC: G06F3/02 ,  H01H13/7065

CPC classification number: G06F3/0202 ,  G06F1/1666 ,  H01H3/125 ,  H01H13/7065 ,  H01H2203/036 ,  H01H2221/064 ,  H01H2223/042 ,  H01H2231/002 ,  H01H2233/03

Abstract: A keyboard and a notebook computer with the keyboard are provided. The keyboard is installed on the notebook computer. The keyboard includes a membrane circuit board, a key frame, a key, a linking rod and a fixing plate. The linking rod is connected with the key frame. The fixing plate is disposed under the key frame. While the linking rod is rotated relative to the key frame to push the key frame, a position-limiting structure of the key frame is moved along a guiding structure of the fixing plate. Consequently, the key frame is limited to be moved in a first axial direction. Moreover, when the key frame is moved to a locked position at the same level with a keycap of the key, the keycap cannot be pressed down.

公开(公告)号：US20170330706A1

公开(公告)日：2017-11-16

申请号：US15220185

申请日：2016-07-26

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Yi-Te Chou ,  Yi-Chen Wang ,  Che-Wei Yang

IPC: H01H13/14 ,  H01H13/52

CPC classification number: H01H3/125 ,  G06F1/1618 ,  G06F1/1666 ,  G06F1/1675 ,  H01H2221/058 ,  H01H2221/068 ,  H01H2223/052 ,  H01H2231/042

Abstract: A key structure includes a supporting plate, a movable plate, a keycap and a limiting structure. The supporting plate has supporting plate opening. The movable plate has a movable plate opening. The supporting plate is disposed over the movable plate. The keycap is disposed over the supporting plate. The limiting structure is disposed on the keycap and inserted in the supporting plate opening. When the movable plate is moved to a disabled position, the limiting structure is not aligned with the movable plate opening and the limiting structure in the supporting plate opening is stopped by the movable plate. Consequently, the keycap is not allowed to be moved.

公开(公告)号：US20170294277A1

公开(公告)日：2017-10-12

申请号：US15194046

申请日：2016-06-27

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Wei-Yung Huang ,  Che-Wei Yang ,  Chen-Hsuan Hsu

IPC: H01H13/14 ,  H01H13/52

CPC classification number: H01H13/14 ,  G06F1/1666 ,  H01H3/125 ,  H01H13/52 ,  H01H33/12 ,  H01H2221/068 ,  H01H2223/052 ,  H01H2231/042

Abstract: A key structure includes a first movable plate, a second movable plate, a keycap, a first linkage lever and a second linkage lever. The second movable plate is disposed over the first movable plate. The keycap is disposed over the second movable plate. The first linkage lever is connected with the keycap and the first movable plate. The second linkage lever is connected with the keycap and the second movable plate. While the first movable plate is moved in a first direction and the second movable plate is moved in a second direction, the first linkage lever and the second linkage lever are moved in different directions, so that a height of the keycap is reduced.

公开(公告)号：US11152168B1

公开(公告)日：2021-10-19

申请号：US17136418

申请日：2020-12-29

Applicant: Primax Electronics Ltd.

Inventor： Ming-Han Wu ,  Che-Wei Yang

IPC: H01H3/12 ,  H01H13/7065

Abstract: A keyboard device includes a membrane circuit board, a base plate and a key structure. The key structure a keycap, a first connecting element, a second connecting element, a stabilizer bar and an auxiliary bar. The first connecting element and the second connecting element are connected between the keycap and the base plate. The first connecting element has a first lateral side and a second lateral side. The second connecting element has a third lateral side and a fourth lateral side. The third lateral side faces the second lateral side. The stabilizer bar is pivotally coupled to the keycap, the first lateral side of the first connecting element and the fourth lateral side of the second connecting element. The auxiliary bar is pivotally coupled to the keycap, the second lateral side of the first connecting element and the third lateral side of the second connecting element.

公开(公告)号：US11145475B1

公开(公告)日：2021-10-12

申请号：US17081495

申请日：2020-10-27

Applicant: Primax Electronics Ltd.

Inventor： Ming-Han Wu ,  Che-Wei Yang ,  Yi-Wei Chen ,  Chien-Hung Liu ,  Chen-Hsuan Hsu

IPC: H01H13/70 ,  H01H13/705

Abstract: A keyboard device includes plural key structures. Each key structure includes a plate assembly, a keycap, a connecting member and a buffering element. The plate assembly has a hollow region. The keycap is located over the plate assembly. The connecting member is connected between the keycap and the plate assembly. The keycap is connected with the connecting member through at least one hook of the keycap. The keycap is movable upwardly or downwardly relative to the plate assembly through the connecting member. The buffering element is installed on the plate assembly. The buffering element is extended in a direction toward the keycap and penetrated through the hollow region of the plate assembly. While the keycap is moved downwardly and the at least one hook of the keycap is contacted with the buffering element, there is the gap between the keycap and the plate assembly.

公开(公告)号：US10607793B1

公开(公告)日：2020-03-31

申请号：US16263957

申请日：2019-01-31

Applicant: Primax Electronics Ltd.

Inventor： Chun-Yuan Liu ,  Che-Wei Yang ,  Ming-Han Wu

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

Abstract: A keyboard device includes a base plate and a key structure. The key structure includes a keycap, a first connecting element, a second connecting element and a stabilizer bar. The first connecting element and the second connecting element are arranged between the base plate and the keycap and connected with the base plate and the keycap. The stabilizer bar is fixed on the first connecting element and the second connecting element. Since the stabilizer bar does not collide with the base plate to generate the unpleasant noise, the keyboard device of the present invention is capable of reducing the noise. Moreover, since the stabilizer bar is fixed on the first connecting element and the second connecting element, it is not necessary to install hooks corresponding to the stabilizer bar on the keycap and the base plate and the fabricating cost is reduced.