The present disclosure provides a fuse for protecting a 48V battery system of an electric vehicle, which includes a shell and a fuse element arranged in the shell, wherein the fuse element includes a fusing portion, and a first heating portion and a second heating portion which are connected to two sides of the fusing portion, respectively and the fusing portion has a width greater than that of the first heating portion and the second heating portion, the fusing portion includes at least one hole which partitions the fusing portion into constricted portions each having a width less than that of the first heating portion or the second heating portion, and the fusing portion, the first heating portion and the second heating portion are formed integrally.

A power supply apparatus includes a battery pack for an electric vehicle, and an interface unit that couples the battery pack and a plurality of electrical devices. The interface unit includes a branch connector provided with a coupling unit and a plurality of fuses. The coupling unit allows coupling wires to join. Each of the coupling wires is coupled to a corresponding one of electrical devices. Each of the plurality of fuses is disposed in a corresponding one of coupling wires. The interface unit also includes a battery pack connector that is able to be coupled to the branch connector. In a state in which the branch connector is coupled to the battery pack connector, the power supply apparatus is configured to be able to supply electric power from the battery pack to each of the plurality of electrical devices via the coupling unit.

A waterproof cover for a resettable in-line fuse having a cover with a top end and a bottom end; a seal mount on the top end; and a flexible seal for the seal mount. The seal mount has a hollow interior and an annular flange. The flexible seal has a top portion, a middle portion, and bottom portion. A translucent flexible dome is positioned on the top portion and an internal annular groove is positioned in the middle portion to engage the annular flange. A seal is positioned in the bottom end of the cover and positioned around a female section of the resettable in-line fuse. A seal is also positioned in a bottom end of the female section of the resettable in-line fuse to produce a waterproof fuse. A reset button is visible in the translucent flexible dome when the resettable in-line fuse is tripped. The fuse can be reset by pushing the flexible dome against the reset button.

Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus may include a housing including a main body, a cover coupled to a first side of the main body, and a base coupled to a second side of the main body, wherein the cover and the main body define a fuse cavity, and wherein the base and the main body define a main cavity. The fuse apparatus may further include a plurality of fuses disposed within the fuse cavity, and a plurality of solenoids electrically connected to a printed circuit board (PCB), wherein the plurality of fuses is disposed above the PCB, and wherein the PCB is positioned within the main cavity.

A sealed fuse in accordance with the present disclosure may include a tubular fuse body, a trench formed in an exterior of the fuse body, and an electrically conductive endcap that fits over an end of the fuse body and is fastened to the fuse body by an electrically conductive material having a lip portion that extends into the trench to provide a barrier that extends between the fuse body and the endcap. In an embodiment, the trench may be formed in an end face of the fuse body and may extend entirely around an opening in the end of the fuse body. In another embodiment, the trench may be formed in an outwardly-facing surface of a sidewall of the fuse body and may extend entirely around the fuse body.

A sealed fuse in accordance with the present disclosure may include a tubular fuse body, a trench formed in an exterior of the fuse body, and an electrically conductive endcap that fits over an end of the fuse body and is fastened to the fuse body by an electrically conductive material having a lip portion that extends into the trench to provide a barrier that extends between the fuse body and the endcap. In an embodiment, the trench may be formed in an end face of the fuse body and may extend entirely around an opening in the end of the fuse body. In another embodiment, the trench may be formed in an outwardly-facing surface of a sidewall of the fuse body and may extend entirely around the fuse body.

A sealed fuse in accordance with the present disclosure may include a tubular fuse body, a trench formed in an exterior of the fuse body, and an electrically conductive endcap that fits over an end of the fuse body and is fastened to the fuse body by an electrically conductive material having a lip portion that extends into the trench to provide a barrier that extends between the fuse body and the endcap. In an embodiment, the trench may be formed in an end face of the fuse body and may extend entirely around an opening in the end of the fuse body. In another embodiment, the trench may be formed in an outwardly-facing surface of a sidewall of the fuse body and may extend entirely around the fuse body.

A sealed fuse in accordance with the present disclosure may include a tubular fuse body, a trench formed in an exterior of the fuse body, and an electrically conductive endcap that fits over an end of the fuse body and is fastened to the fuse body by an electrically conductive material having a lip portion that extends into the trench to provide a barrier that extends between the fuse body and the endcap. In an embodiment, the trench may be formed in an end face of the fuse body and may extend entirely around an opening in the end of the fuse body. In another embodiment, the trench may be formed in an outwardly-facing surface of a sidewall of the fuse body and may extend entirely around the fuse body.

A pressure-compensated fuse assembly may include a first chamber housing a first fluid and a plurality of solid particles. Additionally, the fuse assembly may include a second chamber housing a second fluid. Further, the fuse assembly may include a pressure compensator disposed between the first chamber and the second chamber. The pressure compensator may be configured to transfer pressure from the second fluid in the second chamber to the plurality of solid particles in the first chamber.

Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus may include a housing including a main body, a cover coupled to a first side of the main body, and a base coupled to a second side of the main body, wherein the cover and the main body define a fuse cavity, and wherein the base and the main body define a main cavity. The fuse apparatus may further include a plurality of fuses disposed within the fuse cavity, and a plurality of solenoids electrically connected to a printed circuit board (PCB), wherein the plurality of fuses is disposed above the PCB, and wherein the PCB is positioned within the main cavity.