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.

Date of Patent:
Mar. 25, 2025

Filed:

Feb. 15, 2022
Applicant:

Dexerials Corporation, Shimotsuke, JP;

Inventor:

Yoshihiro Yoneda, Shimotsuke, JP;

Assignee:

DEXERIALS CORPORATION, Shimotsuke, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 85/38 (2006.01); H01H 85/00 (2006.01); H01H 85/06 (2006.01); H01H 85/10 (2006.01); H01H 85/17 (2006.01); H01H 85/175 (2006.01);
U.S. Cl.
CPC ...
H01H 85/38 (2013.01); H01H 85/0052 (2013.01); H01H 85/06 (2013.01); H01H 85/10 (2013.01); H01H 85/17 (2013.01); H01H 85/1755 (2013.01); H01H 2223/044 (2013.01);
Abstract

A protection element includes: a fuse element configured to be energized in a first direction, which is a direction from a first end portion of the fuse element to a second end portion of the fuse element; a shielding member including a plate-shaped part, configured to rotate around a rotation axis extending in a second direction orthogonal to the first direction, wherein the plate-shaped part viewed from the fuse element is divided to a first portion and a second portion at a contact position between the plate-shaped part and the rotation axis, and an area of the first portion and an area of the second portion are different from each other; and a case having therein a housing portion. Pressure elevation in the housing portion due to an arc discharge causes the shielding member to rotate around the rotation axis and the shielding member divides the housing portion.


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