Title:
KEY SWITCH CAPABLE OF LIMITING POSITION OF GUIDING CORE
Document Type and Number:
WIPO Patent Application WO/2018/184498
Kind Code:
A1
Abstract:
A key switch capable of limiting a position of a guiding core. The key switch comprises a base (1) and a cap (2), the cap covering the base thereabove to form a container cavity (3). The container cavity accommodates a conduction assembly and an upper guiding core (6) therein. The key switch is characterized by further comprising an upper guiding core limiting mechanism disposed in the container cavity and located at the lower end of the upper guiding core, wherein the upper guiding core limiting mechanism comprises a lower guiding core elastic body (8), a lower guiding core (4), a middle guiding core elastic body (9) and a middle guiding core (5) sequentially arranged from bottom to top, and the upper guiding core and the middle guiding core are connected to each other by an upper guiding core elastic body (10). The key switch enables an accurate pressing movement for electrical connection, accurate positioning of a connection stroke, and pressing strength is adjustable, making the pressing strength more uniform, and as a result the switch can make an electrical connection whenever the guiding core is pressed downward, thereby increasing the overall pressing stability of the key switch.
Inventors:
WU FUXI (CN)
Application Number:
PCT/CN2018/080915
Publication Date:
October 11, 2018
Filing Date:
March 28, 2018
Export Citation:
Assignee:
DONGGUAN CITY KAIHUA ELECT CO LTD (CN)
International Classes:
H01H13/83; H01H13/705; H01H13/84
Foreign References:
| CN206758331U | 2017-12-15 | |||
| CN205900399U | 2017-01-18 | |||
| CN106206130A | 2016-12-07 | |||
| US20040203999A1 | 2004-10-14 |
Attorney, Agent or Firm:
GENUINEWAYS INTELLECTUAL PROPERTY AGENCY (CN)
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