公开(公告)号：US09087650B2

公开(公告)日：2015-07-21

申请号：US13867930

申请日：2013-04-22

Applicant: Primax Electronics Ltd.

Inventor： Hui Ma ,  Chuang-Shu Jhuang ,  De-Guang Zhu

IPC: H01H13/70 ,  H01H3/12

CPC classification number: H01H3/122 ,  H01H3/125 ,  H01H13/70

Abstract: A keycap structure includes a reinforcement element and a keycap body. The reinforcement element includes two long segments and two short segments. The keycap body includes plural fixing parts and two protruding parts. The plural fixing parts are used for fixing two ends of each long segment of the reinforcement element. The two protruding parts are used for pushing the two short segments of the reinforcement element, so that the reinforcement element is subjected to deformation. Consequently, the reinforcement element generates a reacting force to push against the bilateral sides of the keycap body. Under this circumstance, the top surface of the keycap body is formed as a downwardly-concave arc-shaped surface, so that the shape of the keycap structure is effectively corrected.

Abstract translation: 键帽结构包括加强元件和键帽体。 加强元件包括两个长段和两个短段。 键帽体包括多个固定部和两个突出部。 多个固定部分用于固定加强元件的每个长段的两个端部。 两个突出部分用于推动加强元件的两个短段，使得加强元件受到变形。 因此，加强元件产生反作用力以推压键帽主体的两侧。 在这种情况下，键帽体的上表面形成为向下凹的弧形表面，从而有效地校正了键帽结构的形状。

公开(公告)号：US20230395339A1

公开(公告)日：2023-12-07

申请号：US17865699

申请日：2022-07-15

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang ,  De-Guang Zhu ,  Rong-Biao Xu

IPC: H01H13/704 ,  H01H13/703

CPC classification number: H01H13/704 ,  H01H13/703 ,  H01H13/83

Abstract: A membrane circuit board includes a first membrane substrate, a spacer substrate, a second membrane substrate and a third membrane substrate. The first membrane substrate includes a first gas channel and a first conductive contact. The spacer substrate includes a first gas hole and a second gas hole. The second membrane substrate includes a second gas channel, a second conductive contact, a third gas hole and a fourth gas hole. The second gas channel is communication between the third gas hole and the fourth gas hole. The second gas channel is in communication with the first gas channel through the first gas hole and the second gas hole. The third membrane substrate includes a third gas channel. The third gas channel is in communication with the second gas channel through the third gas hole and the fourth gas hole.

公开(公告)号：US20190220101A1

公开(公告)日：2019-07-18

申请号：US16189989

申请日：2018-11-13

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang ,  Zhi-Hui Zeng

IPC: G06F3/02 ,  H01H13/7073 ,  H01H3/12

CPC classification number: G06F3/0202 ,  H01H3/12 ,  H01H13/7073 ,  H01H2003/127

Abstract: A key structure includes a base plate, a structural plate, a sound generation assembly and a keycap. The structural plate is installed on the base plate. The sound generation assembly includes a shaft body and a cantilever element. The cantilever element is protruded from a side of the shaft body. The structural plate is covered by the keycap. The keycap includes a first protrusion post and a second protrusion post. A first space and a second space are formed between the first protrusion post and the second protrusion post. The first space and the second space are not aligned with each other. The cantilever element is movable within the first space and the second space. Consequently, the feedback of a click sound is generated.

公开(公告)号：US10692667B1

公开(公告)日：2020-06-23

申请号：US16292799

申请日：2019-03-05

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang ,  Sheng-Huang Huang ,  Zhi-Hui Zeng

IPC: G06F3/02 ,  H01H13/70 ,  H01H13/705 ,  H01H13/7065 ,  H01H13/14

Abstract: A keyboard device includes a base, a wing-type connecting element and a keycap. The base plate includes a close-type connecting bracket. The wing-type connecting element includes a first frame and a second frame. A connecting shaft of the second frame is received within the close-type connecting bracket. Consequently, the wing-type connecting element is connected with the base plate. While the keycap is depressed, the connecting shaft is only allowed to be rotated and limited within the close-type connecting bracket. Since the swinging range of the wing-type connecting element is reduced, the keyboard device of the present invention is capable of improving the depressing stability of the keycap.

公开(公告)号：US09767970B2

公开(公告)日：2017-09-19

申请号：US15082657

申请日：2016-03-28

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang

IPC: H01H9/00 ,  H01H13/14 ,  H01H13/10 ,  H01H13/02 ,  H01H13/52

CPC classification number: H01H13/023 ,  H01H3/125 ,  H01H2215/03 ,  H01H2219/044 ,  H01H2221/062

Abstract: A key structure includes a connecting plate, a keycap, a triggering element, a scissors-type connecting element, a membrane switch circuit member, and a supporting plate. The keycap includes a protrusion part. The supporting plate includes an accommodation part and an elastic structure. The elastic structure is aligned with the protrusion part and disposed within the accommodation part. When the keycap is depressed, the protrusion part is moved with the keycap to push the triggering element. Consequently, the membrane switch circuit member is triggered by the triggering element. Moreover, as the protrusion part is moved with the keycap, the protrusion part collides with the elastic structure to generate a sound.

公开(公告)号：US11862411B2

公开(公告)日：2024-01-02

申请号：US17865699

申请日：2022-07-15

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang ,  De-Guang Zhu ,  Rong-Biao Xu

IPC: H01H13/704 ,  H01H13/703 ,  H01H13/83

CPC classification number: H01H13/704 ,  H01H13/703 ,  H01H13/83 ,  H01H2219/062

Abstract: A membrane circuit board includes a first membrane substrate, a spacer substrate, a second membrane substrate and a third membrane substrate. The first membrane substrate includes a first gas channel and a first conductive contact. The spacer substrate includes a first gas hole and a second gas hole. The second membrane substrate includes a second gas channel, a second conductive contact, a third gas hole and a fourth gas hole. The second gas channel is in communication with the third gas hole and the fourth gas hole. The second gas channel is in communication with the first gas channel through the first gas hole and the second gas hole. The third membrane substrate includes a third gas channel. The third gas channel is in communication with the second gas channel through the third gas hole and the fourth gas hole.

公开(公告)号：US11646167B1

公开(公告)日：2023-05-09

申请号：US17711757

申请日：2022-04-01

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang ,  Dan Li ,  Sheng-Huang Huang

IPC: H01H13/7065 ,  H01H3/12

CPC classification number: H01H13/7065 ,  H01H3/125 ,  H01H2231/002

Abstract: A keyboard device includes plural key structures. Each key structure includes a base plate, a keycap, a membrane circuit board, a connecting member and an elastic element. The keycap includes a pressing post. The membrane circuit board is arranged between the base plate and the keycap. The connecting member is penetrated through the membrane circuit board and connected between the keycap and the base plate. The keycap is movable upwardly or downwardly relative to the membrane circuit board. The elastic element is arranged between the keycap and the membrane circuit board. The elastic element includes a resilience piece and plural supporting ribs. The plural supporting ribs are arranged between the resilience piece and the keycap. The plural supporting ribs are contacted with the pressing post of the keycap. Consequently, there is a gap between the pressing post and the resilience piece.

公开(公告)号：US09799465B2

公开(公告)日：2017-10-24

申请号：US15131824

申请日：2016-04-18

Applicant: Primax Electronics Ltd.

Inventor： Chuang-Shu Jhuang ,  Song-Hui Han

IPC: H01H13/70 ,  H01H13/14 ,  H01H3/12 ,  H01H13/705

CPC classification number: H01H13/14 ,  H01H3/125 ,  H01H13/705 ,  H01H2221/036

Abstract: A key structure includes a base, a triggering element, a keycap and a scissors-type connecting element. The keycap is disposed over the triggering element. When an external force is applied to the keycap, the triggering element is pushed by the keycap. The scissors-type connecting element is connected with the keycap and the base. The scissors-type connecting element includes a first frame and a second frame. The first frame includes a keycap post, a base post and a bulge. The bulge is externally extended from a first end of the first frame and located at a side of the keycap post, and the bulge is protruded from a sidewall of the first frame. Due to the bulge, the structured strength of the keycap post is enhanced.

公开(公告)号：US20140216905A1

公开(公告)日：2014-08-07

申请号：US13867930

申请日：2013-04-22

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Hui Ma ,  Chuang-Shu Jhuang ,  De-Guang Zhu

IPC: H01H3/12

CPC classification number: H01H3/122 ,  H01H3/125 ,  H01H13/70

Abstract: A keycap structure includes a reinforcement element and a keycap body. The reinforcement element includes two long segments and two short segments. The keycap body includes plural fixing parts and two protruding parts. The plural fixing parts are used for fixing two ends of each long segment of the reinforcement element. The two protruding parts are used for pushing the two short segments of the reinforcement element, so that the reinforcement element is subjected to deformation. Consequently, the reinforcement element generates a reacting force to push against the bilateral sides of the keycap body. Under this circumstance, the top surface of the keycap body is formed as a downwardly-concave arc-shaped surface, so that the shape of the keycap structure is effectively corrected.

Abstract translation: 键帽结构包括加强元件和键帽体。 加强元件包括两个长段和两个短段。 键帽体包括多个固定部和两个突出部。 多个固定部分用于固定加强元件的每个长段的两个端部。 两个突出部分用于推动加强元件的两个短段，使得加强元件受到变形。 因此，加强元件产生反作用力以推压键帽主体的两侧。 在这种情况下，键帽体的上表面形成为向下凹的弧形表面，从而有效地校正了键帽结构的形状。

公开(公告)号：US20140138223A1

公开(公告)日：2014-05-22

申请号：US13737633

申请日：2013-01-09

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Chuang-Shu Jhuang ,  Hui Ma

IPC: H01H13/14

CPC classification number: H01H3/125 ,  H01H13/7065 ,  H01H2215/006

Abstract: A key structure with a scissors-type connecting member is provided. The key structure includes a base plate, a scissors-type connecting member, and a keycap. The scissors-type connecting member includes a first frame and a second frame. The first frame includes a rotating shaft and an extension bulge. The second frame includes a receiving recess and a position-limiting cavity. For combining the first frame with the second frame, the rotating shaft is inserted into the receiving recess and the extension bulge is inserted into the position-limiting cavity. Consequently, a rotating range of the extension bulge is limited.

Abstract translation: 提供了具有剪刀式连接构件的键结构。 钥匙结构包括底板，剪刀型连接件和键帽。 剪刀型连接构件包括第一框架和第二框架。 第一框架包括旋转轴和延伸凸起。 第二框架包括接收凹部和位置限制腔。 为了将第一框架与第二框架组合，旋转轴被插入到容纳凹部中，并且延伸凸起插入位置限制腔中。 因此，延伸凸起的旋转范围受到限制。