Abstract: An electrical junction box for a vehicle includes a bus bar, and the bus bar is provided with a through hole for transferring the bus bar. The bus bar can be efficiently transferred by engaging hooks provided at a leading end of a pin chuck device with the transfer through hole, for example.

Abstract: The configuration of an electrical junction box is simplified and made compact. Provided is an electrical junction box for a vehicle, including a housing that accommodates a high-voltage circuit for high voltages and a low-voltage circuit for low voltages, the electrical junction box including a connection portion for connection to the outside, the connection portion being provided on the housing, wherein the connection portion has both a high-voltage terminal connected to the high-voltage circuit and a low-voltage terminal connected to the low-voltage circuit.

Abstract: This relay unit includes: a first bus bar; a relay electrically connected to the first bus bar; and an apparatus cover for covering the first bus bar and the relay. The apparatus cover includes: an upper member in a box shape having a covered upper end, the upper member having an opening formed in a lower end; and a lower member bonded to the upper member such that the opening of the upper member is covered with the lower member. The lower member is formed of a resin having heat conductivity that is higher than that of the upper member. The first bus bar is connected to the lower member via a first inner heat conductive sheet such that heat can be transferred to the lower member, said first inner heat conductive sheet being disposed between the first bus bar and the lower member.

Abstract: An electrical connection box capable of suppressing ingression of liquid is provided. The electrical connection box is configured to house an electrical device, to interconnect a plurality of in-vehicle device via the housed electrical device, and to be provided in a vehicle, and includes an insertion port that passes through a side wall and into which an electric wire to be connected to the electrical device is inserted, and an eave portion that is provided along an upper edge portion of the insertion port and protrudes outwardly by a predetermined length.

Abstract: An electrical junction box includes a container and a relay that is installed on an outer surface of the container. A busbar protrudes from the outer surface of the container and is connected to the relay. A support wall protrudes from the outer surface of the container, is provided opposite to the busbar, and supports the relay. The relay is interposed between the busbar and the support wall, and the busbar has a guide portion configured to guide insertion of the relay between the busbar and the support wall.

Abstract: Provided is an electrical junction box that enables easily checking the connection state of a connector terminal and a substrate. The electrical junction box includes: a box body; a substrate that is fitted to an inner portion of the box body; a connector terminal that passes through a side wall of the box body and is held thereby, and includes an inward end portion that is connected to the substrate; and a window hole that is formed in the side wall and enables visually checking a portion where the connector terminal is connected to the substrate.

Abstract: An electrical connection box mounted on a vehicle and used for connecting a plurality of on-board loads to an on-board power supply, comprising: a box main body that is provided with an opening at a side and that accommodates an electrical component for the connecting; a cover body that covers the opening and that is provided with a protrusion portion protruding outward beyond the opening; an insertion hole that is provided a side wall of the box main body and that allows for insertion of an electric wire to be connected to the electrical component; and an extension portion that extends outward from a portion of the protrusion portion corresponding to the insertion hole and that bends arcuately.

Abstract: An electrical connection box comprising a box main body that accommodates an electrical component and a connector for connection with an electrical wire that is provided in a protruding manner on an outer surface of the box main body, the electrical connection box being mounted on a vehicle and used for connection of a plurality of on-board loads to an on-board power supply comprises a protector that is provided in a protruding manner along a protrusion direction of the connector and protects the connector.

Abstract: A novel wire harness connecting structure for a housed circuit assembly is provided. The connecting structure is able to electrically connect a wire harness and a circuit assembly housed in a housing to each other, using a small number of parts, with high space efficiency. The wire harness connecting structure for housed circuit assemblies is used to electrically connect wire harnesses to circuit assemblies housed in a housing, wherein through holes are provided in a wall of the housing, circuit assembly connectors that are provided in the circuit assemblies face the through holes, and harness end connectors that are provided at ends of the wire harnesses are configured to be inserted into the through holes of the housing and to be connected to the circuit assembly connectors of the circuit assemblies.

Abstract: An electrical connection box comprising a box main body that accommodates an electrical component and a connector for connection with an electrical wire that is provided in a protruding manner on an outer surface of the box main body, the electrical connection box being mounted on a vehicle and used for connection of a plurality of on-board loads to an on-board power supply comprises a protector that is provided in a protruding manner along a protrusion direction of the connector and protects the connector.

Abstract: Provided is an electrical junction box that enables easily checking the connection state of a connector terminal and a substrate. The electrical junction box includes: a box body; a substrate that is fitted to an inner portion of the box body; a connector terminal that passes through a side wall of the box body and is held thereby, and includes an inward end portion that is connected to the substrate; and a window hole that is formed in the side wall and enables visually checking a portion where the connector terminal is connected to the substrate.

Abstract: Provided is an electrical junction box in which a relay can be easily installed. The electrical junction box includes: a container; a relay that is installed on an outer surface of the container; a busbar that protrudes from the outer surface of the container, and is connected to the relay; and a support wall that protrudes from the outer surface of the container, is provided opposite to the busbar, and supports the relay. The relay is interposed between the busbar and the support wall, and the busbar has a guide portion configured to guide insertion of the relay between the busbar and the support wall.

Abstract: An electrical connection box mounted on a vehicle and used for connecting a plurality of on-board loads to an on-board power supply, comprising: a box main body that is provided with an opening at a side and that accommodates an electrical component for the connecting; a cover body that covers the opening and that is provided with a protrusion portion protruding outward beyond the opening; an insertion hole that is provided a side wall of the box main body and that allows for insertion of an electric wire to be connected to the electrical component; and an extension portion that extends outward from a portion of the protrusion portion corresponding to the insertion hole and that bends arcuately.

Abstract: An electrical connection box capable of suppressing ingression of liquid is provided. The electrical connection box is configured to house an electrical device, to interconnect a plurality of in-vehicle device via the housed electrical device, and to be provided in a vehicle, and includes an insertion port that passes through a side wall and into which an electric wire to be connected to the electrical device is inserted, and an eave portion that is provided along an upper edge portion of the insertion port and protrudes outwardly by a predetermined length.

Abstract: Provided is an electrical connection box capable of preventing a short circuit caused by droplets. The electrical connection box is to be provided in a vehicle, and includes an inner box for housing an electrical device for interconnecting a plurality of in-vehicle devices, and an outer box for supporting the inner box on an inner bottom surface, in which the inner bottom surface of the outer box and an outer bottom surface of the inner box are separated and face each other at a predetermined distance that is larger than a sum of heights of droplets adhering to the inner bottom surface and the outer bottom surface from the surfaces to which the droplets adhere.

Abstract: A wire harness connecting structure for two circuit assemblies is provided. The structure allows a wire harness to be easily connected to two circuit assemblies with high space efficiency, and can reduce noise in the wire harness. A first connection terminal is provided in a first circuit assembly and a second connection terminal is provided in a second circuit assembly are located adjacent to each other. Two electrical wire-side connection terminals are respectively provided at an end of a first electrical wire and an end of a second electrical wire are housed and positioned in a shared connector housing, and thus a single harness end connector is formed. A wire harness is constituted by the first electrical wire and the second electrical wire. The electrical wire-side connection terminals of the wire harness are configured to be electrically connected to the first connection terminal and the second connection terminal.

Abstract: This relay unit includes: a first bus bar; a relay electrically connected to the first bus bar; and an apparatus cover for covering the first bus bar and the relay. The apparatus cover includes: an upper member in a box shape having a covered upper end, the upper member having an opening formed in a lower end; and a lower member bonded to the upper member such that the opening of the upper member is covered with the lower member. The lower member is formed of a resin having heat conductivity that is higher than that of the upper member. The first bus bar is connected to the lower member via a first inner heat conductive sheet such that heat can be transferred to the lower member, said first inner heat conductive sheet being disposed between the first bus bar and the lower member.

Abstract: A novel wire harness connecting structure for a housed circuit assembly is provided. The connecting structure is able to electrically connect a wire harness and a circuit assembly housed in a housing to each other, using a small number of parts, with high space efficiency. The wire harness connecting structure for housed circuit assemblies is used to electrically connect wire harnesses to circuit assemblies housed in a housing, wherein through holes are provided in a wall of the housing, circuit assembly connectors that are provided in the circuit assemblies face the through holes, and harness end connectors that are provided at ends of the wire harnesses are configured to be inserted into the through holes of the housing and to be connected to the circuit assembly connectors of the circuit assemblies.

Abstract: A wire harness connecting structure for two circuit assemblies is provided. The structure allows a wire harness to be easily connected to two circuit assemblies with high space efficiency, and can reduce noise in the wire harness. A first connection terminal is provided in a first circuit assembly and a second connection terminal is provided in a second circuit assembly are located adjacent to each other. Two electrical wire-side connection terminals are respectively provided at an end of a first electrical wire and an end of a second electrical wire are housed and positioned in a shared connector housing, and thus a single harness end connector is formed. A wire harness is constituted by the first electrical wire and the second electrical wire. The electrical wire-side connection terminals of the wire harness are configured to be electrically connected to the first connection terminal and the second connection terminal.