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.:
Date of Patent:
Nov. 04, 2025
Filed:
Oct. 20, 2023
Applicant:
Omron Corporation, Kyoto, JP;
Inventors:
Assignee:
OMRON CORPORATION, Kyoto, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 5/04 (2006.01); G01R 31/327 (2006.01); H02J 3/14 (2006.01);
U.S. Cl.
CPC ...
H02H 5/04 (2013.01); G01R 31/3278 (2013.01); H02J 3/14 (2013.01);
Abstract
A power cutoff device () comprises a power relay (), a temperature calculation unit (), and a determination unit (). The power relay () includes a drive coil (). The temperature calculation unit () calculates the temperature of the drive coil () by calculating the resistance value of a resistor that changes with temperature when the drive coil () included in the power relay () is regarded as a resistor. The determination unit () determines whether or not to cut off the power supply on the basis of the temperature of the drive coil () calculated by the temperature calculation unit ().