Abstract: Cables W are spliced to one another by insulation displacement terminals 22 in sub connectors 21A and 21B, when a cable holder 11 that contains ends of a plurality of cables is fitted into containing sections of the sub connector housings 21A and 21B. A tab 22c of each insulation displacement terminal 22 is connected to each joint bus bar 24 disposed in a joint connector housing 31. The sub connectors 21A and 21B are interconnected when the sub connectors 21A and 21B are fitted into containing sections of the joint connector housing 31.

Abstract: An electrical connector box includes a connector box case configured to guide a wire along a side of the case, a relay terminal having pinch blades on one end thereof, the pinch blades having a slot therebetween and configured to hold the wire in the slot. The connector box also includes one of a female and male connector on the other end of the relay terminal, the one of a female and male connector configured to connect to a terminal of at least a relay, a fuse and a connector. The slot is configured to be welded closed, or the pinch blades are configured to weldingly secure the wire thereto.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit comprising a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. In the casing is a connector module comprising a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to said bus bars. Each said insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit comprising a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. In the casing is a connector module comprising a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to said bus bars. Each said insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: The present invention provides an electrical junction box suitable for connection, for example, to a wire harness in a vehicle such as an automobile. The box is adapted to provide electrical connection to a plurality of electrical connectors, a plurality of fuses and a plurality of relays, the box having a casing, a connector circuit having a plurality of first bus bars, a fuse circuit discrete from the connector circuit and having a plurality of second bus bars and a relay circuit discrete from the connector circuit and having a plurality of third bus bars. At least one of the second and at least one of the third bus bars are welded to respective ones of the first bus bars at welding portions which are received in a protection structure which presses them towards each other. The protection structure clamps the joined welding portions so that the risk of disconnection of the welded connection is reduced or avoided.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit. The electrical circuit has a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. A connector module in the casing has a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to the bus bars. Each insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: An electric connection box includes a cover fitted on a lower side of a body having mounting portions, and the cover is fixedly secured to a vehicle body. A wire harness is extended outwardly from a portion of the body, disposed near to one corner portion thereof, through an escape groove. Plural lock mechanisms, in which a lock piece portion can be elastically fitted into a lock groove, are provided at fitting peripheral surfaces of the body and cover, and are disposed near to four corner portions thereof respectively. One lock mechanism, disposed near to a position where the wire harness is extended outwardly, has a semi-lock structure, and thus has a smaller retaining force than the other lock mechanisms.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit comprising a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. In the casing is a connector module comprising a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to said bus bars. Each said insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit comprising a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. In the casing is a connector module comprising a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to said bus bars. Each said insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: An electrical connector box includes a connector box case configured to guide a wire along a side of the case, a relay terminal having pinch blades on one end thereof, the pinch blades having a slot therebetween and configured to hold the wire in the slot. The connector box also includes one of a female and male connector on the other end of the relay terminal, the one of a female and male connector configured to connect to a terminal of at least a relay, a fuse and a connector. The slot is configured to be welded closed, or the pinch blades are configured to weldingly secure the wire thereto.

Abstract: An electric connection box includes a cover fitted on a lower side of a body having mounting portions, and the cover is fixedly secured to a vehicle body. A wire harness is extended outwardly from a portion of the body, disposed near to one corner portion thereof, through an escape groove. Plural lock mechanisms, in which a lock piece portion can be elastically fitted into a lock groove, are provided at fitting peripheral surfaces of the body and cover, and are disposed near to four corner portions thereof respectively. One lock mechanism, disposed near to a position where the wire harness is extended outwardly, has a semi-lock structure, and thus has a smaller retaining force than the other lock mechanisms.

Abstract: A busbar is arranged along a clearance, which is a dead space between a plurality of relay mounting portions and a fuse mounting portion in a block main body. The busbar is provided with narrow fusible links and tabs for connection with relays and fuses. The tabs are formed by bending portions of the busbar at positions downstream of the fusible links and are inserted through terminal holes in the relay mounting portions and the fuse mounting portion. The fusible links are set to be fusible at 30 amperes or higher, and a power supply is connected with the relays via the fusible link portions.

Abstract: An electrical junction box for a vehicle provides electrical connection to electrical connectors, fuses and relays. Upper and lower case parts of a casing contain a base circuit, a fuse circuit and a relay circuit. The base circuit has first bus bars and insulation layers stacked together. The first bus bars connect to electrical connectors in use. The fuse circuit has a substrate which is discrete from the base circuit, and second bus bars providing connection to fuses in use. The relay circuit has a substrate, which is discrete from said base circuit, and third bus bars providing connection to relays in use. The second bus bars and the third bus bars are joined to the first bus bars by welding. A compact construction which is easily modified is obtained.

Abstract: A method is provided of connecting wires of a wiring harness to a junction box to form branch circuits. An electrical conductor material is formed in parallel strips in a Y-axis direction on one surface of an insulator board, and wires are arranged in an X-axis direction on the other side of the insulator board. A circuit assembly is formed by connecting the exposed cores of one end of the wires to the conductor material through openings provided in the insulator board. Connector terminals are installed at the other end of the wires that extend outward and away from the insulator board. Groups of wires are gathered and placed in same connectors in which joint terminals are provided. The wires are joined to the connectors to form multiple wire harnesses. The aforesaid circuit assembly is then installed within an upper and lower case assembly provided with lateral openings through which the wire harness can pass.

Abstract: An electrical junction box for a vehicle has a casing, and an electrical circuit comprising a fuse connection circuit, a relay connection circuit and a connector connection circuit. The casing has, at opposite sides, connector sockets for electrical connectors. In the casing is a connector module comprising a plurality of insulation substrates stacked one on another and parallel elongated bus bars on a first surface of each substrate and parallel flexible conductors on a second surface of the substrate, which extend orthogonally to said bus bars. Each said insulation substrate has apertures through it at which the bus bars and flexible conductors are connected to each other to provide desired circuit connections. The bus bars extend from the insulation substrates and provide tabs projecting into the connector sockets. A thin junction box is obtained.

Abstract: An electric current distribution system, particularly for automotive vehicles, comprises a junction box (5) having an input terminal connected with a battery (3) and a plurality of output terminals connected with loads (7), a fusible link (4) being connected between the input terminal of the junction box (5) and the battery (3), and earthing means (10; 12) acting in response to a crash sensor to earth the input terminal of the junction box (5). In the event of a car crash, the earthing means acts in response to the output from the crash sensor, thereby causing an electric current supplied from a battery 3 to flow to the earth via a fusible link 4. The electric current heats and fuses off the fusible link 4. Thus, the flow of electric current to the respective loads can securely be cut off by the construction simpler than that of the prior art.

Abstract: The present invention provides an electrical junction box suitable for connection, for example, to a wire harness in a vehicle such as an automobile. The box is adapted to provide electrical connection to a plurality of electrical connectors, a plurality of fuses and a plurality of relays, the box having a casing, a connector circuit having a plurality of first bus bars, a fuse circuit discrete from the connector circuit and having a plurality of second bus bars and a relay circuit discrete from the connector circuit and having a plurality of third bus bars. At least one of the second and at least one of the third bus bars are welded to respective ones of the first bus bars at welding portions which are received in a protection structure which presses them towards each other. The protection structure clamps the joined welding portions so that the risk of disconnection of the welded connection is reduced or avoided.

Abstract: An electrical junction box for a vehicle provides electrical connection to electrical connectors, fuses and relays. Upper and lower case parts of a casing contain a base circuit, a fuse circuit and a relay circuit. The base circuit has first bus bars and insulation layers stacked together. The first bus bars connect to electrical connectors in use. The fuse circuit has a substrate which is discrete from the base circuit, and second bus bars providing connection to fuses in use. The relay circuit has a substrate, which is discrete from said base circuit, and third bus bars providing connection to relays in use. The second bus bars and the third bus bars are joined to the first bus bars by welding. A compact construction which is easily modified is obtained.

Abstract: The present invention provides a busbar laminate assembly structure. The invention includes a plurality of busbars each having a bent portion, and a plurality of terminal strips, a respective of the plurality of terminal strips depending from a respective bent portion of the busbar. Additionally, a plurality of insulation plates are provided, a respective insulation plate located above a respective busbar and adapted to electrically isolate each respective busbar. The insulation plates include a through-hole adapted to accept a terminal strip therethrough, and a fastening hole adapted to fasten a terminal strip is provided, the fastening hole being provided in the insulation plate farthest from the bent portion of the terminal strip.

Abstract: A pressure-contact terminal is formed by punching and bending a metal plate. A base portion has a pair of sandwiching pieces extending from it, to form a slot for accommodating an electrical cable. A pair of bent-up reinforcing portions extends along the outer edges of the sandwiching pieces. The distance between the outer faces of the reinforcing portions is substantially equal to the outer diameter of the electrical cable. A pair of coating-peeling portions projecting beyond the ends of the sandwiching pieces extend from the reinforcing portions. The gap between the coating-peeling portions is smaller than the outer diameter of the electrical cable and greater than the outer diameter of the conductor of the electrical cable. In this way a terminal of small width is obtained, permitting an electrical connection box containing such terminals to be compact.