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:
Apr. 21, 2025
Filed:
Mar. 24, 2020
Dexerials Corporation, Tochigi, JP;
Yuji Kimura, Tochigi, JP;
Chisato Komori, Tochigi, JP;
DEXERIALS CORPORATION, Tochigi, JP;
Abstract
To provide a protecting device and a battery pack using the same, which are less likely to cause a spark even when a high voltage is applied and can safely and quickly interrupt the current path. A protecting device includes: an insulating substrate; a fuse element; a heat-generatorwhich generates heat to blow the fuse element; a heat-generator feeding electrodewhich serves as a power-feeding terminal to the heat-generator; an insulating layerwhich covers the heat-generator; and a heat-generator lead-out electrodewhich is formed along the heat-generatoron the insulating layerand holds the melted conductorof the fuse element, wherein, when the heat-generatoris energized, the heat-generator feeding electrodeside thereof works as a high potential portion and the heat-generator lead-out electrodeside thereof works as a low potential portion, and in the heat-generator lead-out electrode, an overlapping area in which a distal end portionextending in the high potential portion side of the heat-generatoroverlaps the heat-generatoris smaller than an overlapping area in which a proximal end portionextending in the low potential portion side of heat-generatoroverlaps the heat-generator