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:
Dec. 23, 2025
Filed:
Sep. 19, 2023
Mitsubishi Electric Corporation, Tokyo, JP;
Ryo Shinohara, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
The electric-power conversion apparatus comprises: switching devices each permitting a current to flow therethrough or shutting off that current; a device temperature detector that detects a temperature of one or more of the switching devices; a cooler that cools down the switching devices; a cooling-medium state detector that detects a state of a cooling medium passing through the cooler; and a control unit that controls the switching devices to perform electric-power conversion, and performs overheat prevention control of the switching devices; wherein the control unit determines a temperature threshold value for judging whether the overheat prevention control is necessary or not, on the basis of the state of the cooling medium detected by the cooling-medium state detector, and performs the overheat prevention control by restricting operations of the switching devices, when the temperature detected by the device temperature detector is higher than the temperature threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile