Wire harness unit

Patent metadata

Field	Value
Publication number	US-12154705-B2
Application number	US-202118020816-A
Country	US
Kind code	B2
Filing date	Aug 4, 2021
Priority date	Aug 26, 2020
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A wire harness unit including: a plurality of conductive paths for conducting electricity between in-vehicle devices; and a cooling tube through which a coolant is able to flow for cooling the plurality of conductive paths, wherein: the plurality of conductive paths include a first conductive path and a second conductive path parallel to the first conductive path, the first conductive path includes a first inner insulating layer that is hollow and tubular, and a first tubular conductor that covers an outer circumferential surface of the first inner insulating layer, and the second conductive path includes a second inner insulating layer that is hollow and tubular, and a second tubular conductor that covers an outer circumferential surface of the second inner insulating layer.

First claim

The invention claimed is:

1. A wire harness unit comprising:
a plurality of conductive paths for conducting electricity between in-vehicle devices; and
a cooling tube through which a coolant is able to flow for cooling the plurality of conductive paths, the cooling tube being of a flexible resin material, wherein:
the plurality of conductive paths include a first conductive path and a second conductive path parallel to the first conductive path,
the first conductive path includes a first inner insulating layer that is hollow and tubular, and a first tubular conductor that covers an outer circumferential surface of the first inner insulating layer,
the second conductive path includes a second inner insulating layer that is hollow and tubular, and a second tubular conductor that covers an outer circumferential surface of the second inner insulating layer,
the cooling tube includes a first section extending through the first inner insulating layer, a second section extending through the second inner insulating layer, and a turnback portion that links the first section and the second section, and
the first inner insulating layer and the second inner insulating layer are of synthetic resin.

2. The wire harness unit according to claim 1 ,
wherein a number of conductive paths included in the plurality of conductive paths is an even number.

3. The wire harness unit according to claim 1 , further comprising
an exterior cover for covering the conductive paths, wherein:
the exterior cover includes an exterior tube and a grommet that is connected to an end of the exterior tube, and
the turnback portion is disposed inside the grommet.

4. The wire harness unit according to claim 1 , wherein:
the first tubular conductor is a first braided member formed by braiding metal strands, and
the second tubular conductor is a second braided member formed by braiding metal strands.

5. The wire harness unit according to claim 1 , further comprising
an electromagnetic shield for covering the cooling tube and the conductive paths, wherein:
the electromagnetic shield is a shielding braided member formed by braiding metal strands,
the first inner insulating layer and the second inner insulating layer each include an exposed insulating portion that is exposed from the first tubular conductor or the second tubular conductor,
the exposed insulating portion covers the cooling tube, and
the cooling tube extends through the shielding braided member.

6. The wire harness unit according to claim 5 , wherein:
the first conductive path and the second conductive path each include a terminal and an outer insulating layer for covering an outer circumferential surface of the first tubular conductor or the second tubular conductor,
the first tubular conductor and the second tubular conductor each include an exposed conductor portion that is exposed from the outer insulating layer,
the exposed conductor portion is electrically connected to the terminal, and
the exposed conductor portion is covered by the electromagnetic shield.

7. The wire harness unit according to claim 6 , further comprising
a coat for covering the exposed conductor portion.

8. The wire harness unit according to claim 1 , further comprising
an electromagnetic shield for covering the cooling tube and the conductive paths, wherein:
the electromagnetic shield is a shielding braided member formed by braiding metal strands,
the first inner insulating layer and the second inner insulating layer each include an exposed insulating portion that is exposed from the first tubular conductor or the second tubular conductor,
the exposed insulating portion covers the cooling tube, and
the exposed insulating portion and the cooling tube extend through the shielding braided member.

9. The wire harness unit according to claim 1 , further comprising
an exterior cover for covering the conductive paths, wherein:
the exterior cover includes an exterior tube and a grommet connected to an end of the exterior tube, and
the cooling tube extends through the grommet.

10. A wire harness unit comprising:
a plurality of conductive paths for conducting electricity between in-vehicle devices;
a cooling tube through which a coolant is able to flow for cooling the plurality of conductive paths, wherein:
the plurality of conductive paths include a first conductive path and a second conductive path parallel to the first conductive path,
the first conductive path includes a first inner insulating layer that is hollow and tubular, and a first tubular conductor that covers an outer circumferential surface of the first inner insulating layer,
the second conductive path includes a second inner insulating layer that is hollow and tubular, and a second tubular conductor that covers an outer circumferential surface of the second inner insulating layer, and
the cooling tube includes a first section extending through the first inner insulating layer, a second section extending through the second inner insulating layer, and a turnback portion that links the first section and the second section; and

an electromagnetic shield for covering the cooling tube and the conductive paths, wherein:
the electromagnetic shield is a shielding braided member formed by braiding metal strands,
the first inner insulating layer and the second inner insulating layer each include an exposed insulating portion that is exposed from the first tubular conductor or the second tubular conductor,
the exposed insulating portion covers the cooling tube, and
the cooling tube extends through the shielding braided member.

11. A wire harness unit comprising:
a plurality of conductive paths for conducting electricity between in-vehicle devices;
a cooling tube through which a coolant is able to flow for cooling the plurality of conductive paths, wherein:
the plurality of conductive paths include a first conductive path and a second conductive path parallel to the first conductive path,
the first conductive path includes a first inner insulating layer that is hollow and tubular, and a first tubular conductor that covers an outer circumferential surface of the first inner insulating layer,
the second conductive path includes a second inner insulating layer that is hollow and tubular, and a second tubular conductor that covers an outer circumferential surface of the second inner insulating layer, and
the cooling tube includes a first section extending through the first inner insulating layer, a second section extending through the second inner insulating layer, and a turnback portion that links the first section and the second section; and

an exterior cover for covering the conductive paths, wherein:
the exterior cover includes an exterior tube and a grommet connected to an end of the exterior tube, and
the cooling tube extends through the grommet.

Assignees

• Sumitomo Wiring Systems

Inventors

• Maruchi Takeo

Classifications

• H05K9/0098

  for shielding electrical cables · CPC title

• H01B7/0045

  Cable-harnesses · CPC title

• B60R16/0222 Primary

  Grommets · CPC title

• H01B7/423

  using a cooling fluid · CPC title

• B60R16/0207

  Wire harnesses · CPC title