The invention of the present application provides a fuse that is easily attached directly or indirectly to a battery. A fuse fixed to a battery post BP or a coupling post of a base member coupled to the battery post BP includes: a fuse element including an input terminal fixed to the battery post BP or the coupling post, an external output terminal, and a fusion portion provided between the input terminal and the external output terminal; a housing including an exposure window through which the fusion portion is exposed, the housing accommodating the fuse element; and a cover member that covers the exposure window. The cover member includes a protruding portion protruding toward a battery BT side including the battery post BP or a base member side, and the protruding portion is able to abut on a part of the battery BT or a part of the base member.

The invention of the present application provides a fuse that is easily attached directly or indirectly to a battery. A fuse fixed to a battery post BP or a coupling post of a base member coupled to the battery post BP includes: a fuse element including an input terminal fixed to the battery post BP or the coupling post, an external output terminal, and a fusion portion provided between the input terminal and the external output terminal; a housing including an exposure window through which the fusion portion is exposed, the housing accommodating the fuse element; and a cover member that covers the exposure window. The cover member includes a protruding portion protruding toward a battery BT side including the battery post BP or a base member side, and the protruding portion is able to abut on a part of the battery BT or a part of the base member.

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.

A circuit protection assembly (CPA) is disposed between a source of power and a circuit to be protected. The CPA comprises a mounting block having a bore extending therethrough and a recess cavity on a first surface of the mounting block. A post having a first end is disposed within the recess cavity and a body portion extends through the bore. The body portion configured to receive a terminal and the second end configured to receive a securing mechanism. A fuse having a centrally disposed aperture is configured to receive the body portion of the post and to receive the terminal for connection to a circuit to be protected. An insulator disposed on the terminal and disposed beneath the securing mechanism. The insulator configured to isolate the post from the terminal and the fuse while allowing the securing mechanism to apply an amount of torque.

A circuit protection assembly (CPA) is disposed between a source of power and a circuit to be protected. The CPA comprises a mounting block having a bore extending therethrough and a recess cavity on a first surface of the mounting block. A post having a first end is disposed within the recess cavity and a body portion extends through the bore. The body portion configured to receive a terminal and the second end configured to receive a securing mechanism. A fuse having a centrally disposed aperture is configured to receive the body portion of the post and to receive the terminal for connection to a circuit to be protected. An insulator disposed on the terminal and disposed beneath the securing mechanism. The insulator configured to isolate the post from the terminal and the fuse while allowing the securing mechanism to apply an amount of torque.

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 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 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.