Title:
ULTRA THIN PHOTOELECTRIC KEY STRUCTURE HAVING BALANCED PRESSING
Document Type and Number:
WIPO Patent Application WO/2023/035092
Kind Code:
A1
Abstract:
Disclosed is an discloses an ultra thin photoelectric key structure having balanced pressing. An optical gate structure is an optical gate wing coupled to a linked wing, the linked wing and the optical gate wing being coupled to perform synchronous vertical movement; a return torsion spring having two raised legs is provided between the linked wing and the optical gate wing, one raised leg of the return torsion spring providing an upward elastic force for the linked wing, and the other raised leg providing an upward elastic force for the optical gate wing; a keycap is engaged at upper parts of the linked wing and the optical gate wing; and pressing any position of the keycap can drive the optical gate wing to downward, thereby causing the amount of light received by a photosensitive element to change, so as to generate a key signal. The present solution utilizes an optical gate wing and a linked wing that are coupled together, and vertical travel is further reduced while ensuring balanced and stable pressing, enabling a key structure to be lighter and thinner; also, the optical gate wing has a photoelectric signal trigger function, the linked wing has a sound emission upon pressing function, travel between the optical gate wing and the linked wing is limited, the present solution is stable as a whole, rapidly returns upon being pressed, and is suitable for industrial mass production.
Inventors:
CHEN AIHUA (CN)
Application Number:
PCT/CN2021/000228
Publication Date:
March 16, 2023
Filing Date:
November 26, 2021
Export Citation:
Assignee:
GUANGDONG RUIXUN ELECTRONIC TECH CO LTD (CN)
International Classes:
H03K17/968
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