An electric connection box that has a function of relaying power of power supply supplied from an input-side power supply line and supplying the relayed power of power supply to an output-side load on a vehicle, that includes a first circuit unit, a second circuit unit, and an air blower configured to blow air to the first circuit unit, and in which the first circuit unit and the second circuit unit are arranged in a state of being close to each other, the electric connection box includes: a gap portion that is a space formed on a boundary between the first circuit unit and the second circuit unit; and an airflow guide portion configured to guide an airflow blown by the air blower to both the first circuit unit and the gap portion.

An electrical connection box for installation in a vehicle includes a bus bar to electrically and thermally interconnect a plurality of electrical components electrically connected to a power storage device or in-vehicle load installed in the vehicle, a casing to house the plurality of electrical components and the bus bar, and an insulating heat dissipation member thermally connected to the bus bar and the casing, with at least two of the plurality of electrical components being disposed adjacent to each other, and the bus bar dissipating heat from the two electrical components via the heat dissipation member.

An electrical connection box for installation in a vehicle includes a bus bar to electrically and thermally interconnect a plurality of electrical components electrically connected to a power storage device or in-vehicle load installed in the vehicle, a casing to house the plurality of electrical components and the bus bar, and an insulating heat dissipation member thermally connected to the bus bar and the casing, with at least two of the plurality of electrical components being disposed adjacent to each other, and the bus bar dissipating heat from the two electrical components via the heat dissipation member.

An energization controller that is easily and inexpensively adaptable to diversified configurations of a load is provided. The energization controller includes a parent board mounted with a mechanical relay that allows or interrupts flow of a current between a power source and a load, a child board mounted with a load control component that drives the load or transmits a signal to the load, and a connecting part that connects the parent board and the child board to each other.

An energization controller that is easily and inexpensively adaptable to diversified configurations of a load is provided. The energization controller includes a parent board mounted with a mechanical relay that allows or interrupts flow of a current between a power source and a load, a child board mounted with a load control component that drives the load or transmits a signal to the load, and a connecting part that connects the parent board and the child board to each other.

Provided is an electrical junction box including a substrate on which fixed fuses and replaceable fuses are mounted. The substrate includes a first part to which the fixed fuses are soldered, and a second part that excludes the first part. The first part and the second part are separable from each other.

A system is disclosed. The system may include a modular control unit configured to control power to at least one load device. The modular control unit may include a backplate with a recess that includes a set of backplate electrical contacts. The system may also include a contact element configured to receive the power. The system may also include at least one device control assembly configured to be removably coupled to the backplate. The device control assembly may include a set of device control assembly electrical contacts configured to electrically couple with the set of backplate electrical contacts of the backplate when the at least one device control assembly is coupled to the backplate and configured to electrically decouple from the set of backplate electrical contacts when the at least one device control assembly is decoupled from the backplate.

A modular power distribution system, comprising a client device configured to be inserted into a host device, and having a series of independently configurable electrical connections and predetermined electrical connections connecting the host device, the client device, and a cable to deliver power from the cable to a peripheral of the client. A modular power distribution system, comprising a host device having first and second compartments, the second compartment being dimensioned to automatically align the client electrical coupler with the host electrical coupler and form a protective barrier while the client electrical coupler is in contact with the host electrical coupler. A modular power distribution system comprising a multi-gang host device and a client assembly, and having a series of independently configurable electrical connections and predetermined electrical connections connecting the multi-gang host device, the client assembly, and a cable(s) to deliver power from the cable the client assembly.

An electrical connection box includes a substrate on which a fuse element including terminals is mounted, and a case member in which the substrate is housed. Through holes pass through the substrate in the thickness direction, the terminals of the fuse element are inserted into the through holes on one surface side of the substrate and protrude from the other surface side, and the protruding portions of the terminals are in contact with the case member.

A modular electrical outlet assembly includes an enclosure that can be installed in a wall of a room. The enclosure has a plurality of wiring terminals that can each be electrically coupled to electrical wiring in the room. The enclosure has a plurality of output sockets each being integrated therein. Each of the output sockets is in electrical communication with a respective one of the wiring terminals to receive electrical current from the electrical wiring. A module is insertable into the enclosure and the module has a plurality of input terminals that is each integrated therein. Each of the input terminals electrically engages a respective one of the output sockets in the enclosure when the module is inserted into the enclosure to receive electrical current from the electrical wiring in the wall.