公开(公告)号：US11094479B1

公开(公告)日：2021-08-17

申请号：US16885481

申请日：2020-05-28

Applicant: Primax Electronics Ltd.

Inventor： Xiao-Jun Chu ,  Li-Qiang Chen ,  Liu-Bing Cai ,  Sheng-An Tsai ,  Chun-Che Wu

IPC: H01H13/705 ,  H01H3/12 ,  G06F3/02

Abstract: A key structure includes a keycap, a pedestal and an elastic element. The keycap includes a main body and a coupling shaft. The pedestal includes a key slot. The key slot has an upper part and a lower part. The coupling shaft is penetrated through the upper part of the key slot and movable within the key slot upwardly or downwardly. The elastic element is installed in the lower part of the key slot. After an external force applied to the keycap is released, the elastic element is elastically restored, so that the keycap is returned to an original position. At the same time, the buffering elements in the key slot interfere with the coupling shaft. Consequently, an ascending speed of the keycap is reduced, and a click sound generated from the collision between keycap and the pedestal is reduced.

公开(公告)号：US10658135B1

公开(公告)日：2020-05-19

申请号：US16286249

申请日：2019-02-26

Applicant: Primax Electronics Ltd.

Inventor： Sheng-An Tsai ,  Li-Jen Chien ,  Hsiang-Wen Cheng

IPC: G06F3/02 ,  H01H13/705 ,  H01H13/84 ,  H01H13/85 ,  H01H13/7065

Abstract: A keyboard device includes a key structure, a membrane wiring board and an elastic element. The elastic element is arranged between the key structure and the membrane wiring board. The key structure includes a sleeve, a plunger-type support shaft, a keycap and a resilience element. The plunger-type support shaft is movable upwardly or downwardly relative to the sleeve. When the keycap is depressed in response to an external force, the resilience element and the sleeve interfere with each other. Consequently, the keyboard device provides the operating sound and the operating feedback like a mechanical switch.

公开(公告)号：US20250125106A1

公开(公告)日：2025-04-17

申请号：US18507828

申请日：2023-11-13

Applicant: Primax Electronics Ltd.

Inventor： Shu-An Huang ,  Kai-Wen Lee ,  Sheng-An Tsai ,  Li-Kuei Cheng ,  Tsun-Han Wu ,  Chen-Wei Chan ,  Shao-Ju Yen

IPC: H01H13/84

Abstract: A mechanical keyboard is provided, which includes a plurality of mechanical keys, a circuit board, a plurality of first magnetic elements, a lower casing and a plurality of second magnetic elements. The mechanical keyboard has a key region and an edge region surrounding the key region. The mechanical keys are located in the key region. The circuit board is disposed beneath the mechanical keys. The first magnetic elements are disposed beneath the circuit board and distributed in the key region. The lower casing is disposed beneath the mechanical keys, the circuit board and the first magnetic elements. The second magnetic elements are disposed over the lower casing, in which the second magnetic elements respectively correspond to the first magnetic elements and respectively repel the first magnetic elements.

公开(公告)号：US11728109B2

公开(公告)日：2023-08-15

申请号：US17851201

申请日：2022-06-28

Applicant: Primax Electronics Ltd.

Inventor： Yung-Tai Pan ,  Chun-Che Wu ,  Ming-Hao Hsieh ,  Sheng-An Tsai

IPC: H01H13/7065 ,  H01H13/86

CPC classification number: H01H13/7065 ,  H01H13/86 ,  H01H2237/008

Abstract: A key structure includes a casing, a covering member, a pressing element, a triggering post, a switch element. The casing has an opening. The opening is covered by the covering member. The pressing element is disposed within the opening and connected with the covering member. The pressing element includes a middle part and an extension part. The triggering post is installed on the middle part of the pressing element. The triggering post is extended in the direction toward the inner position of the casing. When an external force is applied to the middle part of the pressing element, the triggering post is moved toward the switch element to push the switch element. When the external force is applied to the extension part of the pressing element, the triggering post is correspondingly moved with the pressing element in an inclined manner to push the switch element.

公开(公告)号：US20230216499A1

公开(公告)日：2023-07-06

申请号：US17857852

申请日：2022-07-05

Applicant: Primax Electronics Ltd.

Inventor： Chun-Che Wu ,  Ming-Hao Hsieh ,  Sheng-An Tsai

IPC: H03K17/97 ,  H01H19/14 ,  H01H36/00

CPC classification number: H03K17/97 ,  H01H19/14 ,  H01H36/0073 ,  H03K2217/94068

Abstract: A control wheel includes a casing, a wheel ring, a first magnetic element, a pivotal shaft and a second magnetic element. The casing includes an accommodation structure and a concave structure. The accommodation structure includes a base. The wheel ring is disposed within the accommodation structure. The wheel ring is exposed outside through the accommodation structure and the concave structure. The pivotal shaft is disposed within the wheel ring and connected with the base of the accommodation structure. The wheel ring is rotatable relative to the pivotal shaft. The first magnetic element is disposed within the wheel ring. The second magnetic element is disposed within the base of the accommodation structure. The first magnetic element of the wheel ring and the second magnetic element are magnetically attracted by each other. Consequently, a rotating speed of the wheel ring is decreased.

公开(公告)号：US20230215668A1

公开(公告)日：2023-07-06

申请号：US17851201

申请日：2022-06-28

Applicant: Primax Electronics Ltd.

Inventor： Yung-Tai Pan ,  Chun-Che Wu ,  Ming-Hao Hsieh ,  Sheng-An Tsai

IPC: H01H13/7065 ,  H01H13/86

CPC classification number: H01H13/7065 ,  H01H13/86 ,  H01H2237/008

Abstract: A key structure includes a casing, a covering member, a pressing element, a triggering post, a switch element. The casing has an opening. The opening is covered by the covering member. The pressing element is disposed within the opening and connected with the covering member. The pressing element includes a middle part and an extension part. The triggering post is installed on the middle part of the pressing element. The triggering post is extended in the direction toward the inner position of the casing. When an external force is applied to the middle part of the pressing element, the triggering post is moved toward the switch element to push the switch element. When the external force is applied to the extension part of the pressing element, the triggering post is correspondingly moved with the pressing element in an inclined manner to push the switch element.

公开(公告)号：US11681379B1

公开(公告)日：2023-06-20

申请号：US17947794

申请日：2022-09-19

Applicant: Primax Electronics Ltd.

Inventor： Chun-Nan Su ,  Chun-Che Wu ,  Chun-Lin Chu ,  Shu-An Huang ,  Ming-Hao Hsieh ,  Sheng-An Tsai ,  Li-Kuei Cheng

IPC: G06F3/0354 ,  G01P3/44 ,  G06F3/0362

CPC classification number: G06F3/03543 ,  G01P3/44 ,  G06F3/0362

Abstract: A mouse device includes a wheel control mechanism and a control unit. The control unit is electrically connected with a magnetic force module and a rotating speed detector of the wheel control mechanism. Under control of the control unit, a first direction current or a second direction current is selectively provided to drive the magnetic force module. The flowing directions of the first direction current and the second direction current are opposite. Consequently, the rotating mode of the wheel control mechanism can be switched between different modes.

公开(公告)号：US11099667B1

公开(公告)日：2021-08-24

申请号：US16912296

申请日：2020-06-25

Applicant: Primax Electronics Ltd.

Inventor： Li-Kuei Cheng ,  Sheng-An Tsai ,  Yung-Ming Tsai ,  Shu-An Huang ,  Chun-Che Wu

IPC: G06F3/0362 ,  G06F3/0354 ,  H01F7/02

Abstract: A mouse device includes a casing and a roller module. The roller module is installed within the casing. The roller module includes a roller wheel, a movable magnet, a first magnet and a second magnet. In response to a repulsive force between the first magnet and the movable magnet, the roller module is in a tactile feel mode. In response to an attractive force between the second magnet and the movable magnet, the roller module is in a smooth scrolling mode.

公开(公告)号：US10236141B1

公开(公告)日：2019-03-19

申请号：US15865622

申请日：2018-01-09

Applicant: Primax Electronics Ltd.

Inventor： Sheng-An Tsai ,  Li-Jen Chien ,  Hsiang-Wen Cheng ,  Jia-Jui Yang ,  Pai-Ping Hsu

IPC: H01H13/705 ,  H01H13/83 ,  H01H13/02 ,  H01H3/12

Abstract: A key structure includes a membrane switch circuit member, a rubbery elastomer, a housing, a triggering element, a metallic elastic element and a keycap. The keycap is disposed on the triggering element. The rubbery elastomer is disposed on the membrane switch circuit member. The housing is located over the rubbery elastomer. The triggering element is movable relative to the housing. The metallic elastic element is contacted with the triggering element. While the keycap is depressed, the triggering element is moved relative to the housing to press the metallic elastic element. While the metallic elastic element is pushed by the triggering element, the metallic elastic element is swung to collide with the triggering element. Consequently, a click sound is generated.