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US 11,164,711 B2Granted
DC contactor with dual micro switches
AssigneeXiamen Hongfa Electric Power Controls Co., Ltd.
InventorsSongsheng Chen, Shuming Zhong, Shengsheng Shi
Life of this patent
Estimating the term…
Abstract
A DC contactor with dual micro switches, characterized in that, comprising: a coli, a push rod and two micro switches, the two micro switches are respectively installed at two predetermined positions in the contactor, the push rod is provided with two toggle arms respectively matched with the two micro switches, when main contacts of the contactor are in contact, the two micro switches turn on or off or convert contact by the toggle arms of the push rod according to a predetermined means.
Claims9
A DC contactor with dual micro switches, comprising:
- a coil, a push rod and two micro switches, the two micro switches are respectively installed at two predetermined positions in the contactor, the push rod is provided with two toggle arms respectively matched with the two micro switches, when main contacts of the contactor are in contact, the two micro switches turn on or off, wherein the two micro switches are respectively a first micro switch for detecting an on/off condition of the main contacts and a second micro switch for realizing energy saving, the second micro switch is a normally closed micro switch, when the coil is excited, the push rod pushes the main movable contact of the contactor to move and contact the main stationary contact, then one toggle arm of the push rod drives a contact arm of the first micro switch to move so as to cause the first micro switch to turn on or off;
- the other toggle arm of the push rod drives a contact arm of the second micro switch to move so as to cause the second micro switch to turn off.
Dependencies are inferred from the claim text.