Title:
PHOTOELECTRIC KEYBOARD SWITCH AND MECHANICAL KEYBOARD
Document Type and Number:
WIPO Patent Application WO/2017/219383
Kind Code:
A1
Abstract:
Disclosed are a photoelectric keyboard switch and a mechanical keyboard. The photoelectric keyboard switch comprises a PCB (90), a housing (10), and a pressing shaft (20). The pressing shaft is adapted to move up and down in the housing. The PCB is further electrically connected with a light emitting element (30) and a light receiving element (40). The light emitting element and the light receiving element are oppositely disposed at both sides of the pressing shaft. The housing is provided with a reflection part (13) and fixed with a light guide column (50). One part of light emitted by the light emitting element travels out of the housing by means of the light guide column, and the other part of light is reflected to the light receiving element by means of the reflection part. A light-transmitting hole is provided on the pressing shaft. When the pressing shaft is pressed, light reflected by the reflection part passes through the light-transmitting hole to be received by the light receiving element, and when the pressing shaft is not pressed, light reflected by the reflection part is blocked by the pressing shaft. The photoelectric keyboard switch of the present invention is simple in structure, high in precision, and low in costs.
Inventors:
LIU FANGLONG (CN)
Application Number:
PCT/CN2016/087835
Publication Date:
December 28, 2017
Filing Date:
June 30, 2016
Export Citation:
Assignee:
SHENZHEN HUANGZHAOMING TECH COMPANY LIMITED (CN)
International Classes:
H01H13/83
Foreign References:
| CN105006396A | 2015-10-28 | |||
| CN203055745U | 2013-07-10 | |||
| CN101894697A | 2010-11-24 | |||
| CN102053710A | 2011-05-11 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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