A fuse assembly includes a housing and a wound wire operable as a fusible element. The housing has a cavity for the fusible element. The fusible element is formed by coating a wire with enamel and wrapping the wire around a core to produce enamel-coated wound wire. The enamel-coated wound wire is attached to the housing. The core is etched away until the core is dissolved and the enamel is stripped away.

A fuse assembly includes a housing and a wound wire operable as a fusible element. The housing has a cavity for the fusible element. The fusible element is formed by coating a wire with enamel and wrapping the wire around a core to produce enamel-coated wound wire. The enamel-coated wound wire is attached to the housing. The core is etched away until the core is dissolved and the enamel is stripped away.

The present invention provides a fuse that has a stable fusing characteristic and is easily manufactured. A fuse 600 includes: a fuse element 100 that is provided between a pair of terminal parts 110 and has a plurality of fuse parts 120; and a casing 200 for housing the fuse parts 120, wherein the fuse element 100 includes a first flat surface 140 and a second flat surface 150 which are shaped bent along a longitudinal direction P of the fuse element 100 and which extend in a linear manner along the longitudinal direction P, wherein the first flat surface 140 and the second flat surface 150 are provided with the plurality of fuse parts 120, and wherein the first flat surface 140 and the second flat surface 150 are contiguous to one other via a bent section 131.

The present invention provides a fuse that has a stable fusing characteristic and is easily manufactured. A fuse 600 includes: a fuse element 100 that is provided between a pair of terminal parts 110 and has a plurality of fuse parts 120; and a casing 200 for housing the fuse parts 120, wherein the fuse element 100 includes a first flat surface 140 and a second flat surface 150 which are shaped bent along a longitudinal direction P of the fuse element 100 and which extend in a linear manner along the longitudinal direction P, wherein the first flat surface 140 and the second flat surface 150 are provided with the plurality of fuse parts 120, and wherein the first flat surface 140 and the second flat surface 150 are contiguous to one other via a bent section 131.

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.

A protection element includes a first electrode (1), a second electrode (2) having a spring property, and a fuse element material (3) that is disposed between the first electrode and the second electrode, in which the fuse element material (3) is supported by being interposed between the first electrode (1) and the second electrode (2) in a bent state.

Provided is a protecting device that can prevent damage of the device by releasing the pressure inside the housing by providing openings in the housing and can secure appropriate insulation. The protecting device includes: a meltable conductor 3; first and second external connection terminals 7, 8 connected to both ends of the meltable conductor 3; and a housing 6 having a lower case 4 and an upper case 5, wherein one end of the first external connection terminal 7 and one end of the second external connection terminal 8 are led out from the housing 6, and the housing is provided with a first opening 24 formed facing a front surface of the first external connection terminal 7 and a second opening 25 formed facing a front surface of the second external connection terminal 8.

A fuse element is a fuse element (1) including a flat plate-shaped blowout section (1e) with no through-hole disposed between a first terminal (20a) and a second terminal (20b), in which a width (1d) of the blowout section (1e) has a length equal to or greater than 80% of a width (2d) of each of joining portions joining the first terminal (20a) and the second terminal (20b) to the blowout section (1e). The width (1d) of the blowout section (1e) is preferably a length equal to or greater than 95% of the width (2d) of each of the joining portions.

A chip-type fuse includes a plated-shape fusible body (26). The fusible body (26) has internal electrodes (28 and 30) facing toward the center of the straight line from both ends of the straight line, respectively and has a fusible portion (32) formed between the internal electrodes (28 and 30) and integrated with them. The fusible body is housed into a casing (2). Protrusions (38 and 40) protrude from the parts of the both ends of the internal electrodes (28 and 30). The protrusions (38 and 40) are covered with plating layers (50 and 52).