H01H85/1755

Fuse
11127555 · 2021-09-21 · ·

A fuse includes a fuse element extending along an axis, the fuse element including two terminals and a melt portion arranged between the two terminals, a casing that accommodates the melt portion and an arc-extinguishing material, the casing including an outer circumferential surface and two end surfaces, the casing being an assembly of at least two segments, and a molded body made of plastic, the molded body including two covers that respectively cover the two end surfaces and including one or more coupling portions that couple the two covers to each other, the two covers and the one or more coupling portions being integrally molded. The casing includes one or more exposed portions on the outer circumferential surface, the one or more exposed portions being exposed without being covered by the coupling portions.

Electric fuse
20210118639 · 2021-04-22 ·

A safety fuse for use in a motor vehicle includes which fuse comprises a first contact metal portion, a second contact metal portion and a melting metal section connecting the first contact portion to the second contact portion. The melting section is enclosed by a casing made from a non-conductive material and includes two hollow half-shells provided with mutual coupling elements, each half-shell having an inner surface facing the melting section and an outer surface facing outside of the fuse. At least one of the half-shells is provided on at least part of the inner surface of an alveolar structure with open cells in the direction of the melting section. The alveolar structure is formed by a plurality of walls protruding from the inner surface and intersected with each other.

Fuse
10903032 · 2021-01-26 · ·

A fuse includes an outer cartridge body, an inner cartridge body provided inside the outer cartridge body, a fuse core provided inside the inner cartridge body, two inner copper bushes provided at and covering two open ends of the outer cartridge body, and two outer copper bushes provided at and covering the two inner copper bushes and two open ends of the outer cartridge body. One end of one inner copper bush is a first open end, and the other end is a first closed end. An end face of the first closed end has a first opening. The first open end of the inner copper bush and the outer cartridge body form an interference fit. An end of the fuse core extends and passes through the first opening, and is fixed to the end face of the first closed end.

High current one-piece fuse element and split body

A compact, high breaking capacity fuse that includes a top and bottom insulative layer and a single piece fusible element disposed between the top and bottom insulative layer. The top and bottom insulative layers include cavities that are aligned at assembly to form a chamber in which a fusible element portion of the single piece fusible element is disposed. The single piece fusible element additionally includes terminal portions that extend along outer surfaces of the top and bottom insulative layers.

Fuse line fixing structure of fuse
10854413 · 2020-12-01 · ·

A fuse line fixing structure of a fuse includes a base having first and second support sections. The first support section has two sides each forming a first wing and a first concave surface is formed between the first support section and the first wings. First and second electrodes are respectively arranged at two ends of the base. The first electrode includes a first curved plate arranged between the first support section and the first wings. The first curved plate has a convex engagement surface positioned against the first concave surface and a concave engagement surface facing toward an upper side of the first concave surface. The fuse line straddles between the first and second support sections and has an outer circumferential surface in mutual contact, through surface to surface engagement, with the concave engagement surface of the first curved plate.

ALUMINUM ALLOY MINIATURE CARTRIDGE FUSES

A high-capacity miniature cartridge fuse is provided. A fuse includes a cylindrical housing, a fusible wire, and first and second deep-drawn ferrules fabricated from aluminum alloy. The aluminum is plated with nickel. The ferrule includes a side wall and an end wall. The side wall surrounds the first or second end of the housing, and has a thickness of approximately 0.50 mm or less. The end wall includes a boss extending toward an interior of the housing, and has a thickness greater than the thickness of the side wall.

Attaching an isolated single stud fuse to an electrical device

An electrical device assembly and method to attach an isolated single stud fuse assembly to an electrical device are disclosed. The electrical device assembly consists of multiple studs, one or more of which is replaced with the isolated single stud fuse. A conductive copper landing zone receives an electrically isolated steel stud. When the landing pad assembly is orbital riveted into a plastic housing of the electrical device, the stud is locked into the housing permanently. Electrical devices such as disconnect switches and power distribution modules, both of which include multiple studs, are good candidates for being adapted with the single stud fuse assembly.

FUSES AND METHODS OF FORMING FUSES

Exemplary embodiments of the present disclosure of a fuse may include a fuse body having a first portion and a second portion. The first and second portions may be configured to mate together thereby forming an internal cavity. A first inner termination and a second inner termination may be at least partially attachable to the first and second portions of the fuse body at respective first and second ends. A fusible element may be disposed in the cavity of the fuse body and extendable from the first inner termination at the first end of the fuse body to the second inner termination at the second end of the fuse body. The fusible element may be attachable to the first inner termination at a first connection and the second inner termination at a second connection. The first and second connections may be inspectable when the fuse is in an assembled state.

FUSE
20200090893 · 2020-03-19 ·

A kind of fuse, comprising, outer cartridge body with both open ends, inner cartridge body with both open ends and provided inside the said outer cartridge body, fuse core provided inside the said inner cartridge body, left and right inner copper bushes provided at and covering both ends of the said outer cartridge body, left and right outer copper bushes provided at and covering the said inner copper bushes and both ends of the said outer cartridge body; Wherein, one end of the said inner copper bush is the first open end, and the other end is the first closed end, the end face of the said first closed end has the first opening; preferably, the said first open end and the said outer cartridge body form interference fit connect through punching. End of the said fuse core extends and passes through the said first opening, and is preferably fixed to the end face of the said first closed end through spot welding. One end of the said outer copper bush is the open end, the other end is the closed end. Preferably, through pressing, the open end of the said outer copper bush and the said first closed end and/or the said outer cartridge body form interference fit joint.

HIGH CURRENT FUSE BLOCK

A power distribution box assembly can include a power distribution box housing, a fuse block, and a plurality of eyelet terminals. The fuse block can include a stamped busbar assembly, a plurality of studs, and a housing. The stamped busbar assembly can include a main power supply portion, a plurality of fuse elements, and a plurality of terminal connecting portions coupled to the plurality of fuse elements. Each of the plurality of terminal connecting portions can: (i) extend from its respective fuse element in a terminal direction that is orthogonal to both directions that the main power supply portion and the fuse elements extend.