US 12,074,005 B2
Protective element
Yoshihiro Yoneda, Shimotsuke (JP); and Koji Sato, Shimotsuke (JP)
Assigned to DEXERIALS CORPORATION, Tochigi (JP)
Appl. No. 17/310,985
Filed by DEXERIALS CORPORATION, Tochigi (JP)
PCT Filed Mar. 2, 2020, PCT No. PCT/JP2020/008651
§ 371(c)(1), (2) Date Sep. 2, 2021,
PCT Pub. No. WO2020/179728, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 2019-039888 (JP), filed on Mar. 5, 2019.
Prior Publication US 2022/0084773 A1, Mar. 17, 2022
Int. Cl. H01H 37/76 (2006.01); H01H 85/00 (2006.01); H01H 85/36 (2006.01); H01H 85/06 (2006.01); H01H 85/08 (2006.01)
CPC H01H 85/36 (2013.01) [H01H 85/0047 (2013.01); H01H 2037/762 (2013.01); H01H 85/06 (2013.01); H01H 85/08 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A protective element comprising:
a fuse element having a first end portion and a second end portion, in which current flows from the first end portion toward the second end portion,
a protruding member and a recessed member that are positioned opposing one another so as to sandwich a cutoff portion of the fuse element positioned between the first end portion and the second end portion, and
a pressing device that imparts an elastic force that shortens a relative distance in a first direction that represents a direction in which the protruding member and the recessed member sandwich the cutoff portion, wherein
at least one pair of opposing surfaces of a protruding portion of the protruding member and a recessed portion of the recessed member that intersect a direction of current flow through the fuse element are positioned close to one another when viewed in a plan view from the first direction, and
the fuse element is cut at a temperature equal to or higher than a softening temperature of a material that constitutes the fuse element.