DC CONTACTOR WITH DUAL MICRO SWITCHES

WIPO Patent Application WO/2018/059479

A1

A DC contactor with dual micro switches (3, 4) comprises a coil (1), a push rod (2) and two micro switches (3, 4). The two micro switches (3, 4) are respectively installed at two predetermined positions in the contactor. The push rod (2) is provided with two toggle arms (21, 22), which are respectively matched with the two micro switches (3, 4). When a main contact point (52) of the contactor is contacted, the push rod (2) causes the two micro switches (3, 4) to be connected or disconnected or to change a contact point through the toggle arms (21, 22) according to a predetermined means. By setting one of the micro switches as a normally closed second micro switch (4) and by means of cooperation between the second micro switch (4) and the second toggle arm (22) of the push rod (2), power saving is achieved, eliminating a complex circuit structure for performing power saving in a circuit board of the prior art, and providing a simpler circuit structure and better applicability.

JP4803206	Electromagnet for relay
JPS5696809	DC ELECTROMAGNET

CHEN SONGSHENG (CN)
ZHONG SHUMING (CN)
JIAN YONGQI (CN)
SHI SHENGSHENG (CN)

PCT/CN2017/103931

April 05, 2018

September 28, 2017

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XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD (CN)

H01H50/44; H01H50/08; H01H50/54

CN105280440A	2016-01-27
CN86210311U	1987-12-05
CN101159201A	2008-04-09
JPH0887940A	1996-04-02
CN105551898A	2016-05-04

See also references of EP 3522197A4
None

BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)

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