A fuse device comprises a fuse element. A first enclosure encloses a first internal volume in which a middle portion of the fuse is located, while end portions of the fuse element project from base portions of the first enclosure. A first base portion is shaped for retaining extinguishing material within the first internal volume, and a second base portion has a fill opening for the introduction of extinguishing material. A second enclosure has a third base portion, with an assembly opening for the introduction of the side walls of the first enclosure in a second internal volume to the second enclosure, and a fourth base portion configured to occlude the fill opening of the second base portion.

A jump stud assembly including a housing, electrically conductive first and second studs extending through a floor of the housing into a compartment defined by the housing, and a fuse module including a mounting block having a through-hole extending therethrough, a fuse plate having an upper portion on a top of the mounting block and having a through-hole aligned with the through-hole of the mounting block, a lower portion on a bottom of the mounting block and having a through-hole aligned with the through-hole of the mounting block, and a fusible element adjacent a sidewall of the mounting block connecting the upper portion of the fuse plate to the lower portion of the fuse plate, wherein the fuse module is mounted on a portion of the first stud outside the compartment with the upper portion of the fuse plate in electrical communication with the first stud.

A jump stud assembly including a housing, electrically conductive first and second studs extending through a floor of the housing into a compartment defined by the housing, and a fuse module including a mounting block having a through-hole extending therethrough, a fuse plate having an upper portion on a top of the mounting block and having a through-hole aligned with the through-hole of the mounting block, a lower portion on a bottom of the mounting block and having a through-hole aligned with the through-hole of the mounting block, and a fusible element adjacent a sidewall of the mounting block connecting the upper portion of the fuse plate to the lower portion of the fuse plate, wherein the fuse module is mounted on a portion of the first stud outside the compartment with the upper portion of the fuse plate in electrical communication with the first stud.

A fuse unit 10 includes: a first terminal portion 21 to be connected to a bus bar 70; a second terminal portion 31 to be connected to an electric wire 60; a melting portion 41 that connects the first terminal portion 21 and the second terminal portion 31 to each other and is configured to melt due to overcurrent; and a case 50 covering the melting portion 41. The first terminal portion 21 includes a first connection portion 24 having a contact surface 24A that is to come into contact with the bus bar 70, and a first holding portion 23 that is arranged between the first connection portion 24 and the melting portion 41 and is held by the case 50. The second terminal portion 31 includes a second connection portion 34 to be connected to the electric wire 60, and a second holding portion 33 that is arranged between the second connection portion 34 and the melting portion 41 and is held by the case 50.

Current-limiting fuse comprising an electrically insulating housing with walls surrounding an interior space, with a first opening and with a second opening opposite to said first opening, and an integrally formed electrical conductor element extending from a first terminal area outside said housing, across said first opening, across said interior space, across said second opening and to a second terminal area outside said housing, wherein said conductor element comprises a melting section of reduced cross-section, said melting section being located in said interior space and being configured to melt, when a predefined maximum allowable electrical current in the conductor element is exceeded, and wherein a first sealing section of the conductor element seals said first opening and wherein a second sealing section of the conductor element seals said second opening. The invention is further directed to a method of manufacturing the current-limiting fuse.

Current-limiting fuse comprising an electrically insulating housing with walls surrounding an interior space, with a first opening and with a second opening opposite to said first opening, and an integrally formed electrical conductor element extending from a first terminal area outside said housing, across said first opening, across said interior space, across said second opening and to a second terminal area outside said housing, wherein said conductor element comprises a melting section of reduced cross-section, said melting section being located in said interior space and being configured to melt, when a predefined maximum allowable electrical current in the conductor element is exceeded, and wherein a first sealing section of the conductor element seals said first opening and wherein a second sealing section of the conductor element seals said second opening. The invention is further directed to a method of manufacturing the current-limiting fuse.

Fuse, including 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 having a reduced section defining a plane transverse to the fuse blade. The fuse also includes arc guards made of a preformed elastic material and associated in pairs, the arc guards of the same pair being each located opposite one another on a respective main face of the same fuse blade. For at least a first pair of arc guards, a layer of adhesive is interposed between the fuse blade and an internal face of each arc guard of this pair, the internal face being oriented towards one of the main faces of the fuse blade, so as to fix each arc guard on the fuse blade.

The present application discloses a fusing device and a power battery. The fusing device includes: a conductive sheet and an insulating connection component, wherein a clearance portion is arranged on the conductive sheet, and the conductive sheet defines a fusing portion at the clearance remaining position on at least one side of the clearance portion; and the insulating connection component is provided with a connection portion and a load bearing portion, the insulating connection component is connected to the conductive sheet through the connection portion, the load bearing portion is located below the fusing portion, and molten beads formed after the fusing portion is blown are enabled to fall into the load bearing portion.

The present application discloses a fusing device and a power battery. The fusing device includes: a conductive sheet and an insulating connection component, wherein a clearance portion is arranged on the conductive sheet, and the conductive sheet defines a fusing portion at the clearance remaining position on at least one side of the clearance portion; and the insulating connection component is provided with a connection portion and a load bearing portion, the insulating connection component is connected to the conductive sheet through the connection portion, the load bearing portion is located below the fusing portion, and molten beads formed after the fusing portion is blown are enabled to fall into the load bearing portion.

Problem To maintain a low internal resistance value and adjust spring characteristics by using a movable contact made of a multilayered material. Means for Solving Problem A thermosensitive pellet-type thermal fuse includes, in an interior of a cylindrical case having electrical conductivity, a thermosensitive pellet that melts or softens at a temperature, a strong compression spring configured to press the thermosensitive pellet, an insulating cover closing the cylindrical case, a weak compression spring abutting against the insulating cover, a first lead extending through the insulating cover and including an inner end as a fixed contact, a movable contact electrically connecting to the first lead and the cylindrical case, a sealing resin provided surrounding a portion of the first lead and covering an outer end portion of the insulating cover, and sealing an open end portion of the cylindrical case, and a second lead disposed at one end of the cylindrical case. The movable contact includes a conductive base material and a conductive member covering a predetermined surface of the conductive base material. The conductive member is provided to contact portions with the fixed contact and an inner wall surface of the cylindrical case, and is made of a material having a Young's modulus and a rigidity different from those of the conductive base material.