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Patent Searching and Data


Title:
PHOTOELECTRIC SWITCH KEY AND KEYBOARD
Document Type and Number:
WIPO Patent Application WO/2021/203519
Kind Code:
A1
Abstract:
A photoelectric switch key. The photoelectric switch key comprises a housing (10), a circuit board (20), a photosensitive assembly (30), and a press assembly (40). The photosensitive assembly (30) is electrically connected to the circuit board (20). A light blocking member (41) is provided on the press assembly (40). The press assembly (40) is movably mounted on the housing (10) such that the light blocking member (41) can move with respect to a light receiving surface of the photosensitive assembly (30). When the light blocking member (41) is distant from the light receiving surface of the photosensitive assembly (30), the photosensitive assembly (30) can receive external light rays. When the press assembly (40) is pressed, the light blocking member (41) moves close to and blocks the light receiving surface of the photosensitive assembly (30). When a user presses down the key, the light blocking member (41) fully blocks light rays emitting from the outside to the photosensitive assembly, thereby implementing the function of the key, and improving the sensitivity of the key. Moreover, no additional paired infrared emitting diodes are required to provide a light source, thereby implementing a simple and compact structure and facilitating miniaturization of the key.

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Inventors:
LIAN, Jiunnwoei (CN)
Application Number:
PCT/CN2020/090067
Publication Date:
October 14, 2021
Filing Date:
May 13, 2020
Export Citation:
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Assignee:
5-LINK TECHNOLOGY CO., LTD. (CN)
International Classes:
H01H13/705; H01H13/7065; H03K17/969
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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