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:
May. 06, 2025
Filed:
May. 27, 2021
Dexerials Corporation, Tochigi, JP;
Yoshihiro Yoneda, Shimotsuke, JP;
DEXERIALS CORPORATION, Tochigi, JP;
Abstract
A protective circuit (A) includes a protective element (A), a plurality of secondary battery cells (), (), . . . , an external positive electrode terminal () and an external negative electrode terminal (), an auxiliary power supply (), a first control device (), and a switch (). The protective element (A) has a first fusible conductor () of which both ends are connected to a first terminal () and a second terminal (), and a heat generator () installed on a first energizing path (P) between a third terminal () and a fourth terminal (). The auxiliary power supply () is provided electrically independently of the plurality of secondary battery cells (), (), . . . . In this protective circuit (A), the switch () is switched to energization by a signal from the first control device (), the heat generator () of the protective element (A) generates heat, and the first fusible conductor () is fused to cut off a portion between the plurality of secondary battery cells (), (), . . . and the external negative electrode terminal (b).