US 12,249,474 B2
Fuse and associated manufacturing process
Laurent Milliere, Lyons (FR); Franck Sarrus, Saint Laurent de Mure (FR); and Jean-François De Palma, St Barthelemy d'Anjou (FR)
Assigned to MERSEN FRANCE SB SAS, Saint-Bonnet-de-Mure (FR)
Appl. No. 18/006,816
Filed by MERSEN France SB SAS, Saint-Bonnet-de-Mure (FR)
PCT Filed Jul. 28, 2021, PCT No. PCT/EP2021/071214
§ 371(c)(1), (2) Date Jan. 25, 2023,
PCT Pub. No. WO2022/023448, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2008037 (FR), filed on Jul. 29, 2020.
Prior Publication US 2023/0274903 A1, Aug. 31, 2023
Int. Cl. H01H 85/38 (2006.01); H01H 69/02 (2006.01); H01H 85/08 (2006.01)
CPC H01H 85/38 (2013.01) [H01H 69/02 (2013.01); H01H 85/08 (2013.01); H01H 2085/388 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A fuse, comprising:
at least one fuse blade, formed in a sheet having two opposite main faces extending along a longitudinal axis of the fuse blade, each fuse blade comprising a portion in which is formed a reduced section defining a plane transverse to the fuse blade; and
two connection terminals, each terminal being connected to each fuse blade, arc guards, made of an elastic material, which are associated in pairs, arc guards of the same pair each being located opposite one another on a respective main face of the same fuse blade, each arc guard comprising an internal face, oriented towards the fuse blade, a front face, oriented towards the reduced section, and a rear face, oriented towards an opposite reduced section,
wherein:
at least one perforation is formed in the fuse blade in a vicinity of the reduced section, each of said perforations being at least partly closed by the internal faces of the two arc guards of the same pair,
each perforation forms a cavity between the two arc guards of the same pair, and
wherein for each fuse blade, a surface section of a group of perforations, measured along the longitudinal axis of this fuse blade, is five times greater than a smallest surface section among the reduced section provided on this fuse blade.