# US 2019/0168698 A1 · Circuit body for vehicle

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- Number: US 2019/0168698 A1
- Document ID: US20190168698A1
- Status: Published application
- Kind: A1
- Application number: 16/198,666
- Filed: 2018-11-21
- Published: 2019-06-06
- Earliest claimed: 2017-12-04
- Assignees: Yazaki Corporation
- Applicants: Yazaki Corporation
- Inventors: Masashi Nakamura; Masahiro Furukawa; Satoshi Enomoto; Akiyoshi Kanazawa
- Web page: https://patentgrep.com/patent/US20190168698A1

## CPC

- B60R 16/03: for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)}
- B60R 16/0207: {Wire harnesses}
- B60R 16/0215: {Protecting, fastening and routing means therefor}
- H02G 3/0481: {with a circular cross-section (H02G3/0468, H02G3/0475 take precedence)}
- H02G 3/081: {Bases, casings or covers}
- H02G 3/086: {Assembled boxes}
- H01B 7/0045: {Cable-harnesses}
- H01B 7/0853: {Juxtaposed parallel wires, fixed to each other without a support layer}
- H02G 3/00: Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles (installations of bus-bars H02G5/00; overhead installations H02G7/00; installations in or on the ground H02G9/00)
- H02G 3/18: providing line outlets
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})

## Abstract

A circuit body for a vehicle is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component. The circuit body includes: a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. The circuit body has a loop structure in which at least part of the plurality of control boxes are annularly connected via the trunk line harness.

## Claims

### Claim 1

A circuit body for a vehicle which is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component, the circuit body comprising:
a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal;
a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and
a branch line harness connecting the control box and the electrical component,
wherein the circuit body has a loop structure in which at least part of the plurality of control boxes are annularly connected via the trunk line harness.

### Claim 2 (depends on 1)

The circuit body for a vehicle according to claim 1,
wherein the trunk line harness is provided as one electric wire integrating a power line for transmitting electric power and a communication line for transmitting a communication signal.

### Claim 3

A circuit body for a vehicle which is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component, the circuit body comprising:
a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal;
a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and
a branch line harness connecting the control box and the electrical component,
wherein the trunk line harness which connects at least one of the plurality of control boxes to be disposed in an engine room of the vehicle and at least one of the control boxes to be disposed in a passenger compartment of the vehicle is covered with an exterior member having a tubular shape.