The present invention provides a fuse that can be easily manufactured and has an improved yield. A fuse includes an input terminal portion, a bus bar portion through which a current input from the input terminal portion flows, and a terminal portion connected to the bus bar portion through a fusible portion, where a fusible portion unit including the fusible portion and the terminal portion is provided in plurals, each of the fusible portion units is a separate body from the bus bar portion and is individually attached to the bus bar portion.

This protective element includes a fusible conductor (1a), three or more electrodes (2a), (2b), (2c) electrically connected to each other via the fusible conductor (1a), and a heating element configured to heat and fuse the fusible conductor (1a).

A fuse array for use in a vehicle electrical system having more than one battery, such as in a start-stop vehicle that automatically shuts off an engine when the vehicle comes to a stop and automatically restarts the engine when a driver starts driving again. The fuse array includes first and second discrete circuits, where the discrete circuits include their own internal bus bars and are electrically isolated from one another, even though they are part of the same fuse array. This enables the fuse array to independently provide battery power to different downstream electrical components, such as a power distribution device and various high amperage components, while still utilizing a single compact assembly.

Provided is a fusible link unit in which a case includes case-side locking portions to be locked in a fusible link so as to affix the fusible link, the fusible link includes fusible link-side locking portions locked in the case-side locking portions, the fusible link-side locking portion on one side in a longitudinal direction is provided closer to a connected position of a bus bar than the fusible link-side locking portion on the other side in the longitudinal direction, and a gap size between the fusible link-side locking portion on the one side and the case-side locking portion in a vertical direction is made greater than a gap size between the fusible link-side locking portion on the other side and the case-side locking portion in the vertical direction.

A fuse unit attachment structure includes a fuse bracket to be mounted on a fuse unit directly attachable to a battery and a bracket connecting member for connecting the fuse bracket to the battery. The fuse bracket has a unit supporting portion to support the fuse unit so as to be movable in a direction perpendicular to a lateral surface of the battery and a connecting member engaging portion to be engaged with the bracket connecting member so as to be movable in a direction along the lateral surface of the battery.

A fusible link includes a power supply portion provided on a connection terminal that connects to a battery terminal, a circuit terminal that connects to a circuit, a power-supply side upstanding portion standing in an out-of-plane direction of a terminal mounting surface from an edge substantially parallel to an extending direction of the battery terminal out of an outer circumferential edge near the power supply portion of the connection terminal, a circuit-side upstanding portion standing in the same direction as the power-supply side upstanding portion from an edge substantially parallel to the extending direction out of an outer circumferential edge of the circuit terminal, and a bridge portion extending between the power-supply side upstanding portion and the circuit-side upstanding portion. The power-supply side upstanding portion, the circuit-side upstanding portion, and the bridge portion function as a fuse element that fuses when a current greater than a threshold value flows.

A complex type fusible link which includes an insulative block base including a plurality of cavities; a conductive connecting plate which is integrally embedded in the insulative block base, a part of the conductive connecting plate being exposed to at least one of the cavities; a plurality of fusible elements each of which is accommodated in corresponding one of the cavities and includes a first end which is connected to the part of the conductive connecting plate and a second end; and a plurality of terminals each of which is integrally embedded in the insulative block base and includes a first end which is connected to the second end of corresponding one of the fusible elements and a second end which is exposed from the insulative block base, at least one of the fusible elements includes a fastening portion to which another fusible element is fastened.

A protection device comprises a substrate, a fusible element and a heating element. The substrate comprises a first electrode and a second electrode on its surface. The fusible element is disposed on the substrate and connects to the first electrode and the second electrode at two ends. The fusible element comprises a first metal layer and a second metal layer disposed on the first metal layer. The second metal layer has a lower melting point than that of the first metal layer. The heating element is disposed on the substrate. In the event of over-voltage or over-temperature, the heating element heats up to melt and blow the fusible element. The second metal layer is 40-95% of the fusible element in thickness.

A fusible link unit includes a locking member having a first locked portion, a second locked portion, and a pair of first abutted portions; a connection section; a first body having a first locking part and a pair of first abutting parts, the first body being extended from the first boundary in a predetermined direction, and the first boundary being a boundary extending in a direction that intersects a deployed direction of the first abutting parts; and a second body having a second locking part and a pair of second abutting parts, and extending in the same direction as the first body from the second boundary, the second boundary being a boundary extending in a direction that intersects a deployed direction of the second abutting part.

An electrical fuse assembly includes electrically conductive first and second electrodes, and a bimetallic fuse element. The bimetallic fuse element electrically connects the first and second electrodes. The bimetallic fuse element is configured to disintegrate, and thereby disconnect the first electrode from the second electrode, in response to a current exceeding a prescribed trigger current of the bimetallic fuse element for at least a prescribed duration.