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 and a plurality of control boxes that are provided in the trunk line. The trunk line includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. The communication line is routed so that at least a part of the plurality of control boxes are connected in a ring form.

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; and a plurality of control boxes that are provided in the trunk line, in which the trunk line includes power source lines of two systems and a communication line.

Abstract: A vehicular circuit body includes a plurality of control boxes, a trunk line that connects the plurality of control boxes to each other, and a branch line that directly or indirectly 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. Each of the plurality of control boxes includes a plurality of branch line connection portions to and from which the communication line of the branch line is attachable and detachable. Each of the plurality of branch line connection portions is provided with a lock function portion that is physically or electrically brought into a lock state in a case where the branch line is not connected thereto.

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: A vehicular circuit body includes a trunk line that extends in 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 line having a predetermined current capacity and a communication line having a predetermined communication capacity. The vehicle is divided into a plurality of regions. At least two control boxes are disposed in the regions which are different from each other, each of which includes a gateway conversing communication methods for the communication line of the branch line and the communication line of the trunk line. A plurality of the gateways are able to communicate with each other via the communication line of the trunk line.

Abstract: A vehicle power supply box device includes: a first system which feeds electric power to first group electric parts requiring constant feed of power supply electric power; a second system which feeds electric power from to second group electric parts requiring feed of power supply electric power in response to a state of an ignition switch. The device further includes: a recovery switch portion connected between a second input side power supply line and an input of the first system; an input abnormality detecting portion which detects presence/absence of abnormality in the input of the first system; and a recovery control portion which controls the recovery switch portion to be turned ON/OFF in accordance with the presence/absence of the abnormality detected by the input abnormality detecting portion.

Abstract: A vehicle power supply box device includes: a first system including a first relay connected downstream of a second line for feeding electric power in association with a state of an ignition switch, to be turned ON/OFF in association with the state; and a second system including a second relay connected downstream of a first line for constantly feeding electric power, to be turned ON/OFF in association with the state of the ignition switch. The device further includes: a recovery switch portion connected between an output of a switch portion of the first relay and an output of the second system; an operation abnormality detecting portion which detects presence/absence of abnormality in the output of the switch portion of the second relay; and a recovery control portion which controls the recovery switch portion to be turned ON/OFF in accordance with the presence/absence of the abnormality.

Abstract: A current cut-off device includes a first current cut-off circuit and a second current cut-off circuit. The first current cut-off circuit is physically cut off in response to a current having a predetermined value or more. The second current cut-off circuit includes at least one semiconductor switching device and is cut off in response to a current having a predetermined value or more. The first current cut-off circuit and the second current cut-off circuit are connected in parallel to each other. A ratio of a current flowing through the first current cut-off circuit to a current flowing through the second current cut-off circuit is set within a prescribed value set in advance, under predetermined conditions.

Abstract: A vehicle power supply box device includes: a first system including a first relay connected downstream of a second line for feeding electric power in association with a state of an ignition switch, to be turned ON/OFF in association with the state; and a second system including a second relay connected downstream of a first line for constantly feeding electric power, to be turned ON/OFF in association with the state of the ignition switch. The device further includes: a recovery switch portion connected between an output of a switch portion of the first relay and an output of the second system; an operation abnormality detecting portion which detects presence/absence of abnormality in the output of the switch portion of the second relay; and a recovery control portion which controls the recovery switch portion to be turned ON/OFF in accordance with the presence/absence of the abnormality.

Abstract: A vehicle power supply box device includes: a first system which feeds electric power to first group electric parts requiring constant feed of power supply electric power; a second system which feeds electric power from to second group electric parts requiring feed of power supply electric power in response to a state of an ignition switch. The device further includes: a recovery switch portion connected between a second input side power supply line and an input of the first system; an input abnormality detecting portion which detects presence/absence of abnormality in the input of the first system; and a recovery control portion which controls the recovery switch portion to be turned ON/OFF in accordance with the presence/absence of the abnormality detected by the input abnormality detecting portion.

Abstract: A power-supply unit and an electric junction b are provided. A branch circuit branches a supply route of a 52V-battery into a (n is an integer of 3 or more) branch routes. A merge circuit joins the n branch routes to one supply route. MOSFETs are arranged on the n branch routes respectively. A rated current of each of the MOSFET is equal to or larger than a rated current of loads (12V-load, 52V-load, ECU, and 12V-battery) which are supplied with electric power from the supply route divided by n?1 and less than the rated current divided by n?2.

Abstract: A connecting block assembly includes a plurality of connecting block parts for connecting electric components which are assembled to each other. Each of the connecting block parts includes a plurality of conductive terminals having electric connecting portions and extended portions extended from the electric connecting portions respectively, and an insulating resin member which fixes the plurality of terminals at positions of the extended portions. A coupling portion is formed on one side wall of the resin member in a coupling direction being perpendicular to both of an extending direction of the extended portions and an arranging direction of the plurality of terminals, and a coupled portion having a shape to be coupled to the coupling portion is formed on the other side wall of the resin member in the coupling direction.

Abstract: A connecting block assembly includes a plurality of connecting block parts for connecting electric components which are assembled to each other. Each of the connecting block parts includes a plurality of conductive terminals having electric connecting portions and extended portions extended from the electric connecting portions respectively, and an insulating resin member which fixes the plurality of terminals at positions of the extended portions. A coupling portion is formed on one side wall of the resin member in a coupling direction being perpendicular to both of an extending direction of the extended portions and an arranging direction of the plurality of terminals, and a coupled portion having a shape to be coupled to the coupling portion is formed on the other side wall of the resin member in the coupling direction.

Abstract: A first board, on which electric wires are wired, includes a first part having a first thickness and a second part continued from the first part and having a second thickness smaller than the first thickness. A second board, on which bus bars are arranged, is disposed on the second part of the first board. The second board has a third thickness which is determined such that an additional thickness of the second thickness and the third thickness is not greater than the first thickness.

Abstract: An electric connection box provided with a wiring board 20 having an electric wire 21 arranged on both surfaces of an obverse surface 20a and a reverse surface 20b, an obverse cover arranged on the obverse surface 20a of the wiring board 20 and having a connector cavity, a reverse cover arranged on the reverse surface 20b of the wiring board 20 and having a connector cavity, and press contact terminals 10, 10A and 10B each having a press contact edge portion 11 pressed onto the electric wire 20 and a tab portion 12 and/or 13 erected in the connector cavity, wherein the press contact terminal 10, 10A or 10B presses the press contact edge portion 11 onto the electric wire 21 from a side where the electric wire 21 is arranged, thereby selectively erecting the terminal portion 12 and/or 13 on both surfaces of a surface having the electric wire 21 arranged thereon and/or a surface opposite to the surface.

Abstract: To reduce temperature rising of an electric connection box caused by high-current circuits, a separable structured electric connection box 1 includes at least two separated connection boxes 2, 3 having respectively a narrow width portion 8 or 10 and a wide width portion 9 or 11. The narrow width portion of one separated connection box and the wide width portion of the other separated connection box are combined. High-current bus bars 6, 7 are wired respectively at each outside wall 4 or 5 of separated connection boxes 2, 3. High-current fusible link mount portions 12, 13 are disposed along the high-current bus bar at the diagonally opposite narrow width portion of each separated connection box.

Abstract: A first board, on which electric wires are wired, includes a first part having a first thickness and a second part continued from the first part and having a second thickness smaller than the first thickness. A second board, on which bus bars are arranged, is disposed on the second part of the first board. The second board has a third thickness which is determined such that an additional thickness of the second thickness and the third thickness is not greater than the first thickness.

Abstract: A press contact terminal has a press contact blade portion pressed on an electric wire, a pair of tab portions arranged mutually in opposite directions with the press contact blade portion as a middle position, and a middle connection portion that connects the pair of tab portions to the press contact blade portion.

Abstract: An electric connection box provided with a wiring board 20 having an electric wire 21 arranged on both surfaces of an obverse surface 20a and a reverse surface 20b, an obverse cover arranged on the obverse surface 20a of the wiring board 20 and having a connector cavity, a reverse cover arranged on the reverse surface 20b of the wiring board 20 and having a connector cavity, and press contact terminals 10, 10A and 10B each having a press contact edge portion 11 pressed onto the electric wire 20 and a tab portion 12 and/or 13 erected in the connector cavity, wherein the press contact terminal 10, 10A or 10B presses the press contact edge portion 11 onto the electric wire 21 from a side where the electric wire 21 is arranged, thereby selectively erecting the terminal portion 12 and/or 13 on both surfaces of a surface having the electric wire 21 arranged thereon and/or a surface opposite to the surface.