Wire harness

Patent metadata

Field	Value
Publication number	US-9345179-B2
Application number	US-201314140788-A
Country	US
Kind code	B2
Filing date	Dec 26, 2013
Priority date	Dec 28, 2012
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

A wire harness includes a plurality of electric wires, a first wire holding portion for holding one of both end portions of the plurality of electric wires, a second wire holding portion for holding another of the both end portions, and an annular electromagnetic wave absorption component arranged between the first and second wire holding portions so as to absorb electromagnetic wave radiated from the plurality of electric wires. The electromagnetic wave absorption component includes a through-hole for inserting collectively the plurality of electric wires such that the plurality of electric wires are inserted through the though-hole and are thereby bundled together.

First claim

What is claimed is:

1. A wire harness, comprising:
a plurality of insulated electric wires, each insulated electric wire having a circular cross section and comprising a center conductor and an insulation covering an outer periphery of the center conductor;
a first wire holding portion holding one of both end portions of the plurality of insulated electric wires;
a second wire holding portion holding another of the both end portions; and
an annular electromagnetic wave absorption component arranged between the first and second wire holding portions so as to absorb electromagnetic wave radiated from the plurality of electric wires,
wherein the electromagnetic wave absorption component comprises a through-hole having a circular cross section and configured to receive collectively the plurality of insulated electric wires and the plurality of insulated electric wires are inserted through the though-hole and are thereby bundled together,
wherein the plurality of insulated electric wires comprise three insulated electric wires having the same outer diameter, and
wherein the outer diameter of the each insulated electric wire is not less than 10% and not more than 46% of an inner diameter of the through-hole, and further comprising,
a movement-restricting member configured to restrict the electromagnetic wave absorption component from moving in an axial direction of the plurality of electric wires and covering only the electromagnetic wave absorption member and portions of the plurality of electric wires immediately adjacent thereto such that the plurality of electric wires are substantially uncovered by the movement-restricting member, and
a braided shield provided around the plurality of insulated electric wires and the electromagnetic wave absorption component,
wherein the movement-restricting member contacts the braided shield at an outer surface of the electromagnetic wave absorption component, contacts the braided shield at an outer periphery of a part in a longitudinal direction of portions of the plurality of the insulated wires exposed from the through-hole on a first wire holding portion side, and contacts the braided shield at an outer periphery of a part in a longitudinal direction of portions of the plurality of the insulated wires exposed from the through-hole on a second wire holding portion side, and
wherein the movement-restricting member binds in one bundle only the part in the longitudinal direction of the portions of the plurality of the insulated wires exposed from the through-hole on the first wire holding portion side via the braided shield, and binds in one bundle only the part in the longitudinal direction of the portions of the plurality of the insulated wires exposed from the through-hole on the second wire holding portion side via the braided shield.

2. The wire harness according to claim 1 , wherein the movement-restricting member comprises a tape member wound around a portion including an outer periphery of the plurality of insulated electric wires exposed from the through-hole on both sides of the electromagnetic wave absorption component.

3. The wire harness according to claim 1 , wherein a space is provided between the though-hole and the plurality of insulated wires.

4. The wire harness according to claim 1 , wherein the braided shield is connected to the first wire holding portion and the second wire holding portion.

5. A wire harness, comprising:
a plurality of insulated electric wires, each insulated electric wire having a circular cross section and comprising a center conductor and an insulation covering an outer periphery of the center conductor;
a first wire holding portion holding one of both end portions of the plurality of insulated electric wires;
a second wire holding portion holding another of the both end portions; and
an annular electromagnetic wave absorption component arranged between the first and second wire holding portions so as to absorb electromagnetic wave radiated from the plurality of electric wires,
wherein the electromagnetic wave absorption component comprises a through-hole having a circular cross section and configured to receive collectively the plurality of insulated electric wires and the plurality of insulated electric wires are inserted through the though-hole and are thereby bundled together, and further comprising,
a movement-restricting member configured to restrict the electromagnetic wave absorption component from moving in an axial direction of the plurality of electric wires and covering only the electromagnetic wave absorption member and portions of the plurality of electric wires immediately adjacent to thereto such that the plurality of electric wires are substantially uncovered by the movement-restricting member, and
a braided shield provided around the plurality of insulated electric wires and the electromagnetic wave absorption component,
wherein the movement-restricting member contacts the braided shield at an outer surface of the electromagnetic wave absorption component, contacts the braided shield at an outer periphery of a part in a longitudinal direction of portions of the plurality of the insulated wires exposed from the through-hole on a first wire holding portion side, and contacts the braided shield at an outer periphery of a part in a longitudinal direction of portions of the plurality of the insulated wires exposed from the through-hole on a second wire holding portion side, and
wherein the movement-restricting member binds in one bundle only the part in the longitudinal direction of the portions of the plurality of the insulated wires exposed from the through-hole on the first wire holding portion side via the braided shield, and binds in one bundle only the part in the longitudinal direction of the portions of the plurality of the insulated wires exposed from the through-hole on the second wire holding portion side via the braided shield.

Assignees

• Hitachi Metals Ltd

Inventors

• Imahori Masaaki
• Futatsumori Takahiro
• Hayashi Shinya

Classifications

• H01F17/06 Primary

  with core substantially closed in itself, e.g. toroid · CPC title

• H05K9/0066

  Constructional details of transient suppressor · CPC title

• H01F2017/065

  Core mounted around conductor to absorb noise, e.g. EMI filter · CPC title

• H05K9/0007 Primary

  Casings (standardised racks H05K9/0062) · CPC title

• H01B7/0045

  Cable-harnesses · CPC title