Title:
PROTECTIVE SWITCH OF PRESSURE COOKER LID
Document Type and Number:
WIPO Patent Application WO/2022/041324
Kind Code:
A1
Abstract:
A protective switch of a pressure cooker lid, relating to the field of switches. The protective switch comprises a shell (1). A push rod (2) is slidably connected to the shell (1). The end of the push rod (2) exceeding the shell (1) is fixedly connected to a water diversion part (36). A reset spring (3) for driving the push rod (2) to reset is provided in the shell (1). A moving contact member (5) is provided on the push rod (2). A static contact member (6) is provided in the shell (1). The static contact member (6) is electrically connected to a wiring terminal (24). The moving contact member (5) comprises an insert plate (7) relatively and fixedly connected to the push rod (2), a copper body (8) provided on the insert plate (7), and copper contact piece sets (9) fixedly connected to the copper body (8). The static contact member (6) comprises a stabilizing plate (17) provided in the shell (1) and copper abutting pieces (18) fixedly arranged on the stabilizing plate (17). The copper abutting pieces (18) are electrically connected to a connecting terminal. There are two copper abutting pieces (18) and two copper contact piece sets (9) which have one-to-one correspondence. The copper contact piece sets (9) can deform and are in contact with the copper abutting pieces (18) to achieve connection or disconnection between the two copper abutting pieces (18). The protective switch of the pressure cooker lid replaces silver point contact with the mode that the copper members are in contact with each other, and has the effect of reducing cost.
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Inventors:
LI JINGANG (CN)
Application Number:
PCT/CN2020/114626
Publication Date:
March 03, 2022
Filing Date:
September 11, 2020
Export Citation:
Assignee:
YUEQING TONGDA WIRE ELECTRIC FACTORY (CN)
International Classes:
A47J27/09; A47J27/086
Foreign References:
| CN203815235U | 2014-09-10 | |||
| CN203312155U | 2013-11-27 | |||
| CN208573444U | 2019-03-05 | |||
| CN105193244A | 2015-12-30 | |||
| CN211049092U | 2020-07-21 | |||
| CN203644593U | 2014-06-11 | |||
| CN209018417U | 2019-06-25 | |||
| KR20170010971A | 2017-02-02 | |||
| JP2000237054A | 2000-09-05 |
Attorney, Agent or Firm:
HANGZHOU WUBO PATENT OFFICE (CN)
Download PDF:
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