公开(公告)号：US20200020492A1

公开(公告)日：2020-01-16

申请号：US16144046

申请日：2018-09-27

Applicant: Primax Electronics Ltd.

Inventor： Che-Wei Yang ,  Yi-Chen Wang ,  Chien-Hung Liu ,  Ming-Han Wu ,  Bo-An Chen ,  Yi-Wei Chen ,  Huang-Ming Chang ,  Chen-Hsuan Hsu

IPC: H01H13/7065 ,  H01H13/88 ,  H01H13/86

Abstract: A keyboard device includes a membrane circuit board, a key frame, a position-limiting frame and a key structure. The key frame is located over the membrane circuit board. The position-limiting frame is located over the key frame. The key frame includes a first frame body and a first receiving hole. The first receiving hole runs through the first frame body along a vertical direction. The position-limiting frame includes a second frame body and a second receiving hole. The second receiving hole runs through the second frame body along the vertical direction. The second receiving hole is in communication with the first receiving hole. The key structure includes a keycap and a protrusion part. The keycap is movable within the first receiving hole and the second receiving hole. A portion of the protrusion part is located under the second frame body.