Abstract: A vehicular circuit body includes a trunk line that extends in at least a front-and-rear direction of a vehicle, a plurality of control boxes that are provided on the trunk line, and a branch line that connects the control box to an accessory. The trunk line and the branch line each includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. The control box includes a branch line connection portion to which the branch line is connected, and a branch line control unit that distributes power from the trunk line to the branch line by controlling the branch line connection portion according to a control program. The control program can be externally changed based on the accessory connected to the branch line.

Abstract: A vehicular circuit body provided in a vehicle includes a trunk line that extends in at least a front-and-rear direction of the vehicle, a plurality of control boxes that are provided in the trunk line, and a branch line that directly or indirectly connects a control box to an accessory. The trunk line includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. The branch line includes a communication line having a predetermined communication capacity. The communication line of the trunk line has a transmission path for an optical signal. The communication line of the branch line has a transmission path for an electric signal.

Abstract: According to the present invention, an additional component circuit body, the structure of which changes in accordance with the type of vehicle or options, and a first base circuit body, the structure of which is fixed, are produced separately, and a whole circuit is configured by combining said circuit bodies. The additional component circuit body has a backbone structure, which is configured such that various branch lines can be attached/detached thereto/therefrom, and a branch line. A main line and the branch line include a power supply line and a communication line. The additional component circuit body has a superordinate control unit and subordinate control unit that control the power supplied to an electrical component that is connected to each branch line. The invention has a switching circuit for switching the connection state of each terminal. Supplied power is controlled by switching the terminals to which power is supplied.

Abstract: This vehicle circuit routing system as a whole has a backbone-like routing structure, said system being provided with a plurality of backbone JB structures, wherein the vehicle circuit bodies of the backbone JB structures are connected to each other by means of a backbone main line. Each vehicle circuit body is provided with a power supply circuit that is connected to a main power supply on the vehicle, a plurality of connection parts to which a plurality of branch lines having a power supply line are connected, and a control unit that controls the distribution of power from the power supply circuit to the branch lines.

Abstract: Power is supplied and a communication path secured by connecting various accessories to branch lines, each of which branches from a main line included in backbone structures. Control of power distribution and the like is implemented by communication between higher-level control units arranged in a smart power supply box, for example, and lower-level control units arranged in area drivers, for example. A switching circuit is arranged at a connection location between the main lines and the branch lines, and is automatically switched such that the terminals to be connected are coordinated. Specifications such as the current of multiple terminals on the power supply side are commonly fixed, and the power to be distributed is controlled by switching the number of terminals to be used. Component standardization and a reduction in part numbers are made easier. The connection position can be freely changed.

Abstract: According to the present invention, an additional component circuit body, the structure of which changes in accordance with the type of vehicle or options, and a first base circuit body, the structure of which is fixed, are produced separately, and a whole circuit is configured by combining said circuit bodies. The additional component circuit body has a backbone structure, which is configured such that various branch lines can be attached/detached thereto/therefrom, and a branch line. A main line and the branch line include a power supply line and a communication line. The additional component circuit body has a superordinate control unit and subordinate control unit that control the power supplied to an electrical component that is connected to each branch line. The invention has a switching circuit for switching the connection state of each terminal. Supplied power is controlled by switching the terminals to which power is supplied.

Abstract: A wire harness system (100) includes an electric connection box (110) and a plurality of sub-harnesses (120, 130, 140, 150, 160) connecting the electric connection box (110) to a plurality of electric devices (910-975). Each of the plurality of sub-harnesses has a specification to be determined for a target electric device. The electric connection box has a plurality of connection portions (111-115) that are in one-to-one correspondence with the plurality of sub-harnesses and at least one of the plurality of connection portions is a single-unit connection portion satisfying a specification of a target sub-harness without relying on other connection portion.

Abstract: A terminal fitting includes a terminal body and terminal connection parts extended from the terminal body. Connection terminals each has a pair of caulking pieces, and each of the connection terminals configured to be connected to an end part of an electric wire. In each of the terminal connection parts, the connection terminal is caulked to the terminal connection part so that the pair of caulking pieces enfold outsides of a pair of caulked pieces provided on the terminal connection part in a state that a bottom face between the pair of caulking pieces faces an opening between ends portions of the pair of caulked pieces. The terminal fitting is connected to the electric wires through the connection terminals.

Abstract: The present invention relates to a connection structure for a terminal fitting (1010). The connection structure includes a terminal fitting (1010) including a terminal body (1011) to be fastened and fixed to a grounding surface and a plurality of terminal connecting portions (1021) extended from the terminal body; and a junction terminal (1030) electrically connected to ground wire (D) and electrically connected to the terminal connecting portions (1021). This connection structure enables a plurality of ground wires to be electrically connected all together to a grounding surface in a space-saving manner.

Abstract: A wire harness includes at least two sub-harnesses having a plurality of electric wires whose one terminal portions are led out from a plurality of connector portions connected to a plurality of electric devices respectively. The other end portions of the electric wires to establish direct connection between the connector portions are electrically connected to each other by a connection mechanism.

Abstract: A terminal fitting includes a terminal body and terminal connection parts extended from the terminal body. Connection terminals each has a pair of caulking pieces, and each of the connection terminals configured to be connected to an end part of an electric wire. In each of the terminal connection parts, the connection terminal is caulked to the terminal connection part so that the pair of caulking pieces enfold outsides of a pair of caulked pieces provided on the terminal connection part in a state that a bottom face between the pair of caulking pieces faces an opening between ends portions of the pair of caulked pieces. The terminal fitting is connected to the electric wires through the connection terminals.

Abstract: The present invention relates to a connection structure for a terminal fitting (1010). The connection structure includes a terminal fitting (1010) including a terminal body (1011) to be fastened and fixed to a grounding surface and a plurality of terminal connecting portions (1021) extended from the terminal body; and a junction terminal (1030) electrically connected to ground wire (D) and electrically connected to the terminal connecting portions (1021). This connection structure enables a plurality of ground wires to be electrically connected all together to a grounding surface in a space-saving manner.

Abstract: A wire harness includes at least two sub-harnesses having a plurality of electric wires whose one terminal portions are led out from a plurality of connector portions connected to a plurality of electric devices respectively. The other end portions of the electric wires to establish direct connection between the connector portions are electrically connected to each other by a connection mechanism.

Abstract: An attachment structure 1 includes: a plurality of attaching legs 5, 6, 7 projected from an outer surface of a box main body 2 as the object and overlapped with a vehicle attaching portion 3 as the subject; a washer 8 fixed to the vehicle attaching portion 3 together with one attaching leg 7 by a bolt, while being overlapped with the one attaching leg 7 at a side away from the vehicle attaching portion 3; and a cover 9 attached to the one attaching leg 7, holding the washer 8 between the cover 9 and the one attaching leg 7. The cover 9 is provided with an exposing hole 9a for exposing a first hole portion 8a provided on the washer 8.

Abstract: A terminal connecting structure includes: an electric wire in which a conductor is covered by an insulative covering; a conductor connecting terminal to which a conductor exposed portion in which the covering of an end portion of the electric wire is removed and the conductor is exposed is electrically connected; a water sealant for molding the conductor connecting terminal; and a fixing terminal which includes a terminal fixing portion that is to be fixed and electrically connected to a mount part, and which is electrically connected to a part of the conductor connecting terminal in a state where the water sealant is removed from the part of the conductor connecting terminal.

Abstract: A grounding terminal includes a first grounding terminal including a first bolt insertion portion and a third bolt insertion portion, and a second grounding terminal including a second bolt insertion portion and a fourth bolt insertion portion. In a state that the first grounding terminal and the second grounding terminal are stacked on to each other, the first grounding terminal and the second grounding terminal are fastened and fixed to a fixation target by first and second bolts at first and second fastening portions. In the second fastening portion, the third bolt insertion portion and the fourth bolt insertion portion are stacked on to each other. The third bolt insertion portion has an elliptic shape or an oval shape. The fourth bolt insertion portion is opened and formed to be larger than the third bolt insertion portion.

Abstract: There are provided a first ground terminal metal fitting to which a plurality of first ground electric wires are connected; and a second ground terminal metal fitting to which a plurality of second ground electric wires are connected. One of the first ground terminal metal fitting and the second ground terminal metal fitting is connected and fixed to a mating terminal connection portion or a ground portion exclusively in accordance with the number of the first electric wires and the number of the second electric wires, or the first ground terminal metal fitting and the second ground terminal metal fitting are combined with each other and then connected and fixed to the mating terminal connection portion or the ground portion.

Abstract: A terminal connecting structure includes: an electric wire in which a conductor is covered by an insulative covering; a conductor connecting terminal to which a conductor exposed portion in which the covering of an end portion of the electric wire is removed and the conductor is exposed is electrically connected; a water sealant for molding the conductor connecting terminal; and a fixing terminal which includes a terminal fixing portion that is to be fixed and electrically connected to a mount part, and which is electrically connected to a part of the conductor connecting terminal in a state where the water sealant is removed from the part of the conductor connecting terminal.

Abstract: A grounding terminal includes a first grounding terminal including a first bolt insertion portion and a third bolt insertion portion, and a second grounding terminal including a second bolt insertion portion and a fourth bolt insertion portion. In a state that the first grounding terminal and the second grounding terminal are stacked on to each other, the first grounding terminal and the second grounding terminal are fastened and fixed to a fixation target by first and second bolts at first and second fastening portions. In the second fastening portion, the third bolt insertion portion and the fourth bolt insertion portion are stacked on to each other. The third bolt insertion portion has an elliptic shape or an oval shape. The fourth bolt insertion portion is opened and formed to be larger than the third bolt insertion portion.

Abstract: A ground connection structure is a structure for collectively connecting, to a body of a vehicle, a plurality of grounding wires which are connected to respective electrical components installed in the vehicle. The ground connection structure includes: a connection box to which the plurality of grounding wires are connected; a grounding terminal part connected to the vehicle in an electrically conducting state; and an electrically conducting connection part having one end connected to the connection box and the other end connected to the grounding terminal part, the electrically conducting connection part connecting the connection box and the grounding terminal part in an electrically conducting manner. The electrically conducting connection part is made of a low-inductance material having low inductance.