公开(公告)号：US11574778B2

公开(公告)日：2023-02-07

申请号：US17810879

申请日：2022-07-06

Applicant: Darfon Electronics Corp.

Inventor： Heng-Yi Huang ,  Hsin-Cheng Ho ,  Yuan-Bao Chen

IPC: H01H13/02 ,  H01H13/14 ,  H01H13/04 ,  H01H13/52

Abstract: An illuminated keyswitch structure with an illuminating module includes a base plate, a drive circuit board under the base plate, a spacer between the drive circuit board and the base plate, and a light-emitting part on the circuit board. The spacer has a through hole communicating with an opening of the base plate in a vertical direction. The light-emitting part is located in the through hole, and falls within a projection of the opening in the vertical direction. The light-emitting part has a top surface that is lower than or equal to a bottom surface of the base plate in the vertical direction. The structure of the illuminated keyswitch structure around the light-emitting part can keep flat by the spacer. The spacer can prevent the light-emitting part from structurally entering the opening, avoiding structural interference between the light-emitting part and other components above the base plate.

公开(公告)号：US11764004B2

公开(公告)日：2023-09-19

申请号：US17234808

申请日：2021-04-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Heng-Yi Huang ,  Hsin-Cheng Ho ,  Yuan-Bao Chen

IPC: H01H13/02 ,  H01H13/14 ,  H01H13/04 ,  H01H13/52

CPC classification number: H01H13/023 ,  H01H13/04 ,  H01H13/14 ,  H01H13/52

Abstract: An illuminated keyswitch structure includes a base plate, a drive circuit board under the base plate, a spacer between the drive circuit board and the base plate, and a light-emitting part on the circuit board. The spacer has a through hole communicating with an opening of the base plate in a vertical direction. The sidewall of the through hole is opaque. The light-emitting part is located in the through hole, and falls within a projection of the opening in the vertical direction. The light-emitting part has a top surface that is lower than or equal to a bottom surface of the base plate in the vertical direction. The structure of the illuminated keyswitch structure around the light-emitting part can keep flat by the spacer. The spacer can prevent the light-emitting part from structurally entering the opening, avoiding structural interference between the light-emitting part and other components above the base plate.

公开(公告)号：US20220216018A1

公开(公告)日：2022-07-07

申请号：US17234808

申请日：2021-04-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Heng-Yi Huang ,  Hsin-Cheng Ho ,  Yuan-Bao Chen

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

Abstract: An illuminated keyswitch structure includes a base plate, a drive circuit board under the base plate, a spacer between the drive circuit board and the base plate, and a light-emitting part on the circuit board. The spacer has a through hole communicating with an opening of the base plate in a vertical direction. The sidewall of the through hole is opaque. The light-emitting part is located in the through hole, and falls within a projection of the opening in the vertical direction. The light-emitting part has a top surface that is lower than or equal to a bottom surface of the base plate in the vertical direction. The structure of the illuminated keyswitch structure around the light-emitting part can keep flat by the spacer. The spacer can prevent the light-emitting part from structurally entering the opening, avoiding structural interference between the light-emitting part and other components above the base plate.