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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.

Patent No.:

US 12618905 B1

PDFFull Text
Date of Patent:
May. 05, 2026

Filed:

Jul. 15, 2025

Superconducting motor quench detection method and apparatus based on rotational symmetry of motor

Applicant:

Qingdao University, Qingdao, CN;

Inventors:

Xianglin Li, Qingdao, CN;

Shaorui Wang, Qingdao, CN;

Mingzhe Sang, Qingdao, CN;

Wei Hua, Qingdao, CN;

Dongyu Li, Qingdao, CN;

Yubin Wang, Qingdao, CN;

Assignee:

QINGDAO UNIVERSITY, Qingdao, CN;

Attorney:

Nitin Kaushik

Primary Examiner:

Catherine T Rastovski

Assistant Examiner:

Lal Ce Mang

Int. Cl.
CPC ...
G01R 31/34 (2020.01); G01R 19/10 (2006.01); G01R 19/165 (2006.01); H02K 55/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/34 (2013.01); G01R 19/10 (2013.01); G01R 19/16576 (2013.01); H02K 55/00 (2013.01);
Abstract

The present invention discloses a superconducting motor quench detection method and apparatus based on rotational symmetry of a motor, belonging to the technical field of superconducting motor quench detection. The method includes: acquiring terminal voltages of each group of superconducting magnets in a superconducting motor, where the superconducting motor is pre-divided into at least two unit motors by using the rotational symmetry of the motor, and superconducting magnets located at corresponding positions are selected from the at least two unit motors as a group of superconducting magnets; calculating an absolute value of a terminal voltage difference of each group of superconducting magnets; and judging whether the absolute value exceeds a preset threshold, and if the absolute value exceeds the preset threshold, determining that the superconducting magnets are in a quench state. According to the present invention, induced voltages coupled by the terminal voltages of superconducting magnets are eliminated.

Find Patent Forward Citations

Li, Xianglin. (2026). Superconducting motor quench detection method and apparatus based on rotational symmetry of motor (U.S. Patent No. 12618905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12618905

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

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