The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 23, 2025

Filed:

Sep. 23, 2021
Applicant:

Xiamen Hongfa Electric Power Controls Co., Ltd., Xiamen, CN;

Inventors:

Shuming Zhong, Xiamen, CN;

Wenguang Dai, Xiamen, CN;

Meng Wang, Xiamen, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 50/20 (2006.01); H01H 50/44 (2006.01); H01H 50/54 (2006.01);
U.S. Cl.
CPC ...
H01H 50/541 (2013.01); H01H 50/20 (2013.01); H01H 50/443 (2013.01);
Abstract

A high-voltage DC relay with an auxiliary contact, includes two stationary contacts, a movable contact piece, a pushing rod, a coil assembly, a movable iron core and an auxiliary contact, the movable iron core is disposed in the coil assembly and is capable of moving up and down and is fixedly connected with the pushing rod; the movable contact piece is movably connected with the pushing rod and cooperates with the two stationary contacts; the auxiliary contact includes two auxiliary springs, each of the two auxiliary springs is provided with a lead-out pin, the pushing rod is provided with an insulating portion and a conductive portion which are adjacent to each other in a vertical direction, as the pushing rod is moved up and down, the two auxiliary springs clamp the conductive portion or the insulating portion of the pushing rod to make the auxiliary contact close or open.


Find Patent Forward Citations

Zhong, Shuming. (2025). High-voltage dc relay with auxiliary contact (U.S. Patent No. 12424405). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12424405

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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