公开(公告)号：US20200312589A1

公开(公告)日：2020-10-01

申请号：US16449782

申请日：2019-06-24

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Li-Xiong Deng ,  Li-Qiang Chen

IPC: H01H19/04 ,  H01H19/14 ,  H01H19/08

Abstract: A rotary switch structure includes a sleeve, a seat body, an elastic ring, plural push elements and a fixing element. The seat body is accommodated within the sleeve. The elastic ring is disposed on the seat body. The plural push elements are disposed on the elastic ring, and provide a pushing force to the elastic ring. The fixing element is fixed in the sleeve and contacted with the plural push elements. The plural push elements are fixed on the elastic ring by the fixing element. The elastic ring absorbs the pushing force, so that a friction force between the at least one push element and the elastic ring is adjustable. Consequently, the rotating feel of the rotary switch structure is adjustable according to the practical requirements.

公开(公告)号：US11482387B2

公开(公告)日：2022-10-25

申请号：US17031662

申请日：2020-09-24

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Li-Xiong Deng ,  Fu-Zhou Wei ,  Li-Qiang Chen ,  Xiao-Ping Wang

IPC: H01H13/06 ,  H01H13/703 ,  H01H13/705

Abstract: A membrane circuit board includes a first film substrate, a second film substrate, an insulating spacer substrate and a waterproof structure. The first circuit layer is installed on the first film substrate. A second circuit layer is installed on the second film substrate. The insulating spacer substrate arranged between the first film substrate and the second film substrate. The first circuit layer is arranged between the first film substrate and the insulating spacer substrate. The second circuit layer is arranged between the second film substrate and the insulating spacer substrate. The waterproof structure includes a first welding layer and a second welding layer. The first welding layer is arranged between the first film substrate and the insulating spacer substrate. The second welding layer is arranged between the second film substrate and the insulating spacer substrate.

公开(公告)号：US20220068575A1

公开(公告)日：2022-03-03

申请号：US17031662

申请日：2020-09-24

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Li-Xiong Deng ,  Fu-Zhou Wei ,  Li-Qiang Chen ,  Xiao-Ping Wang

IPC: H01H13/06 ,  H01H13/705 ,  H01H13/703

Abstract: A membrane circuit board includes a first film substrate, a second film substrate, an insulating spacer substrate and a waterproof structure. The first circuit layer is installed on the first film substrate. A second circuit layer is installed on the second film substrate. The insulating spacer substrate arranged between the first film substrate and the second film substrate. The first circuit layer is arranged between the first film substrate and the insulating spacer substrate. The second circuit layer is arranged between the second film substrate and the insulating spacer substrate. The waterproof structure includes a first welding layer and a second welding layer. The first welding layer is arranged between the first film substrate and the insulating spacer substrate. The second welding layer is arranged between the second film substrate and the insulating spacer substrate.

公开(公告)号：US10903028B2

公开(公告)日：2021-01-26

申请号：US16449782

申请日：2019-06-24

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Li-Xiong Deng ,  Li-Qiang Chen

IPC: H01H19/04 ,  H01H19/08 ,  H01H19/14

Abstract: A rotary switch structure includes a sleeve, a seat body, an elastic ring, plural push elements and a fixing element. The seat body is accommodated within the sleeve. The elastic ring is disposed on the seat body. The plural push elements are disposed on the elastic ring, and provide a pushing force to the elastic ring. The fixing element is fixed in the sleeve and contacted with the plural push elements. The plural push elements are fixed on the elastic ring by the fixing element. The elastic ring absorbs the pushing force, so that a friction force between the at least one push element and the elastic ring is adjustable. Consequently, the rotating feel of the rotary switch structure is adjustable according to the practical requirements.