Provided is an electrical junction box that can be reduced in size by accommodating a high-voltage bus bar and a low-voltage bus bar in a space-efficient manner. The electrical junction box is an electrical junction box for a vehicle including a housing that accommodates a high-voltage bus bar for high voltages and a low-voltage bus bar for low voltages, in which the low-voltage bus bar is attached to a top plate of the housing, the high-voltage bus bar is attached to a bottom plate facing the top plate, and the high-voltage bus bar and the low-voltage bus bar are disposed overlapping each other with a clearance distance therebetween in an up-down direction.

A high-voltage cable connection structure includes a first connector to which a plurality of first high-voltage cables, each connected to a corresponding one of a plurality of terminals of a high-voltage battery, are connected, and a connector receptacle provided in a high-voltage control unit disposed outside a vehicle passenger compartment. Inserting the first connector into and pulling out the first connector from the connector receptacle allows connection and disconnection between the plurality of first high-voltage cables and the high-voltage control unit.

A switch assembly is configured to be mounted to a lower cover of the junction box assembly. The switch assembly includes a holder, the holder is configured to removably coupled to the lower cover. The holder includes a pocket. The switch assembly further includes a switch. The hook is configured to engage the lower cover and is dimensioned to be seated within the pocket of the holder. The switch includes a hook. The hook is configured to pull the switch towards the lower cover so as to pinch the holder between the lower cover and the switch. Accordingly, the hook presses the switch against a bottom surface of the lower cover so as to eliminate a rattle when the switch is held in suspension beneath the lower cover of the junction box assembly.

The invention relates to a method for adapting a wiring harness (1) for a motor-driven land vehicle in order to enable, without cut or splice, connecting said wiring harness to a computer system that is configured to be temporarily and removably mounted onboard a motor-driven land vehicle, said wiring harness comprising a first connector (4), which is provided with at least one socket (5), in which a plug is removably housed (3), said plug being arranged at one end of an electrical wire (2), and a second connector (7) which is provided with at least one pin (6), said second connector (7) being configured to be connected to an electronic control unit of the vehicle. The invention further relates to a wiring harness adapted according to such a method as well as to a motor-driven land vehicle provided with such a wiring harness.

Provided is a wiring junction box for branching a wire connected to a plurality of ECUs mounted in a vehicle, including: a power input terminal connected to an electrical storage device supplying electric power to the ECUs; a plurality of power output terminals respectively outputting electric power input from the power input terminal to the plurality of ECUs; a communication device-side communication port connected to a communication device communicating with the ECUs; and a plurality of ECU-side communication ports respectively connected to the plurality of ECUs, wherein the wire includes a power line for connecting the power input terminal and the power output terminals and a communication line for connecting the communication device-side communication port and the ECU-side communication ports, the power line branches according to the number of power output terminals, and the communication line branches according to the number of ECU-side communication ports.

Provided is an electrical junction box capable of housing an electric component while absorbing the tolerance of the electric component. The electrical junction box is an electrical junction box that is to be mounted in a vehicle, including: a casing that forms an outer shell; and a fixation member that fixes, to the casing, an electric component that is to be electrically connected to a vehicle-mounted load or an electricity storage device mounted in the vehicle, wherein a slit for absorbing a tolerance associated with external dimensions of the electric component is provided in the fixation member.

Provided is a wiring junction box for branching a wire connected to a plurality of ECUs mounted in a vehicle, including: a power input terminal connected to an electrical storage device supplying electric power to the ECUs; a plurality of power output terminals respectively outputing electric power input from the power input terminal to the plurality of ECUs; a communication device-side communication port connected to a communication device communicating with the ECUs; and a plurality of ECU-side communication ports respectively connected to the plurality of ECUs, wherein the wire includes a power line for connecting the power input terminal and the power output terminals and a communication line for connecting the communication device-side communication port and the ECU-side communication ports, the power line branches according to the number of power output terminals, and the communication line branches according to the number of ECU-side communication ports.

An electrical connection box is provided with a conductive bus bar, an insulating housing body, a cover, and a power supply line. The cover opens or closes with respect to the housing body at a fully open position and a fully closed position. The housing body has a connector at a position exposed to the outside, with the connector configured so that a terminal provided at a tip of the power supply line is attachable or detachable to or from the connector. A restriction portion, which restricts the power supply line from moving in the longitudinal direction is provided in the cover. In the state where the terminal is connected to the connector, the tension is created on the power supply line in the longitudinal direction by the restriction portion during moving the cover from the fully closed position to the fully open position side.

An electrical assembly may include a bus bar assembly, a fuse connected to the bus bar assembly, a contactor connected to the bus bar assembly, a bracket connected to the bus bar assembly, and/or a cooling member connected to the bracket such that the fuse is indirectly connected to the cooling member via the bus bar assembly and the bracket. A method of operating an electrical assembly may include controlling the contactor to provide current from a power source to a load, generating heat via the current flowing through the fuse, conducting the heat from the fuse to the bus bar assembly, conducting the heat from the bus bar assembly to the cooling member, and/or dissipating the heat via the cooling member.

An electric control unit comprising: (a) a plurality of input wires; (b) a connector receiving the plurality of input wires on a first side, the first side of the connector including: (i) a plurality of slots that each receive one of the plurality of wires and (ii) a plurality of prongs having an alternating relationship with the plurality of slots so that the plurality of prongs and the plurality of slots support each of the plurality of input wires; and (c) control circuitry located within the connector and connected to each of the plurality of input wires; and (d) a plurality of output pins located on a second side of the connector that are configured to connect to a thermal element so that the electric control unit assists in powering the thermal element and controlling the thermal element.