公开(公告)号：US11942791B2

公开(公告)日：2024-03-26

申请号：US17485485

申请日：2021-09-26

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Fang Deng ,  Yanxin Ji ,  Xinyu Fan ,  Yeyun Cai ,  Chengwei Mi ,  Feng Gao ,  Jie Chen ,  Lihua Dou

IPC: H02J50/00 ,  G06F3/02 ,  G06F3/023 ,  H02J7/00 ,  H02J7/35 ,  H02J50/10 ,  H02J50/40

CPC classification number: H02J50/001 ,  G06F3/0202 ,  G06F3/0231 ,  H02J7/0013 ,  H02J7/35 ,  H02J50/005 ,  H02J50/10 ,  H02J50/402 ,  H02J2207/20 ,  H02J2300/24

Abstract: A self-powered wireless keyboard by modifying the structure of a traditional membrane keyboard having a volcanic crater structure. Not damaging the original membrane keyboard structure, a micro magnet core is installed inside a cylindrical protrusion block under the key cap as a mover of the induction power generation device, and an induction coil is wound in a key slot of the keyboard base as the stator of the induction power generation device. In this way, when each key is pressed, it will produce induction current. A layer of flexible solar cell can be laid on the upper surface of the key, which can generate electricity by collecting the light energy in the surrounding environment during the time of daily illumination.