WO2013172197A1 - Wire harness - Google Patents

Wire harness Download PDF

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Publication number
WO2013172197A1
WO2013172197A1 PCT/JP2013/062579 JP2013062579W WO2013172197A1 WO 2013172197 A1 WO2013172197 A1 WO 2013172197A1 JP 2013062579 W JP2013062579 W JP 2013062579W WO 2013172197 A1 WO2013172197 A1 WO 2013172197A1
Authority
WO
WIPO (PCT)
Prior art keywords
shield
wire harness
shield member
members
power cables
Prior art date
Application number
PCT/JP2013/062579
Other languages
French (fr)
Japanese (ja)
Inventor
康志 井谷
不二夫 薗田
青山　直樹
裕一 木本
佳典 杉本
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2013172197A1 publication Critical patent/WO2013172197A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • B60R16/0215—Protecting, fastening and routing means therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/029—Screen interconnecting circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0487—Tubings, i.e. having a closed section with a non-circular cross-section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0683—Joints for connecting tubing to casing with means for preventing disengagement of conductors with bolts operating in a direction transverse to the conductors

Definitions

  • the present invention relates to a wire harness including a conductive shield member surrounding a power cable.
  • a wire harness installed in a vehicle typified by a car may include a conductive shield member that surrounds the periphery of a wire and shields noise electromagnetic waves.
  • the wire passed through the hollow portion of the shield member is usually a non-shielded wire.
  • An unshielded electric wire is an insulated wire which is not covered by shield members, such as a braided wire.
  • a wire harness of a vehicle may be provided with a braided wire formed of a cylindrically woven metal wire as a shield member.
  • the braided wire is a cylindrical shield member having flexibility which can be deformed according to the deformation of the electric wire.
  • a wire harness laid in a place exposed to the outside such as a lower surface (under floor) of a bottom plate in an automobile includes a metal pipe which is a cylindrical protective member surrounding the periphery of an electric wire.
  • the metal pipe is a member that protects the electric wire from foreign matter such as gravel that splashes from the road, and is also a shield member that shields noise electromagnetic waves.
  • both end portions of the electric wire are wired into the housing from the opening of a metal housing that accommodates a device to be connected.
  • the shield member is usually electrically connected to the metal casing at both ends.
  • the metal casing is electrically connected to a reference potential body such as a car body, so the shield member is grounded via the casing.
  • the shield member and the reference potential body form a closed loop with another conductive member such as a housing.
  • the electric wire which a shield member encloses is a power cable which transmits alternating current
  • an induction current flows into the closed loop formed by a shield member and a reference electric potential object.
  • the induced current flowing through the shield member increases as the current value and frequency of the alternating current flowing through the power cable increase.
  • a three-phase motor is adopted, and a wire harness connected to the three-phase motor is provided with three power cables for conducting symmetrical three-phase alternating current.
  • the phase shift of electricity due to electromagnetic induction generated for each alternating current electricity of each phase is the same.
  • the term “three-phase alternating current” when used without particular explanation, it means “symmetrical three-phase alternating current”, that is, three-phase alternating current whose phase shift (120 degrees) is the same.
  • a shield member that is grounded at both ends and collectively surrounds three power cables that conduct three-phase alternating current is referred to as a collectively enclosed shield member.
  • a shield member which is grounded at both ends and individually surrounds each of the three power cables conducting three-phase alternating current is referred to as a separate surrounding shield member.
  • the encircling shield type shielding member when adopted, the three-phase induction currents mutually cancel each other, so that the problem of an excess current flowing in the shielding member does not occur, but a heavy and large shielding member is required. Because it is inconvenient to handle heavy and large shield members, it is desirable that no such shield members be employed. In addition, if a collective surrounding shield member made of a thin and coarse conductive member is adopted to reduce the weight of the shield member, the shielding performance of high frequency noise is mainly deteriorated.
  • the object of the present invention is to effectively shield noise electromagnetic waves generated in a power cable conducting symmetrical three-phase alternating current, and to allow excessive induced current to flow in the shield member without adopting a heavy and large shield member. It is to prevent.
  • a wire harness according to a first aspect of the present invention includes the components shown below.
  • the first component is three power cables that conduct symmetrical three-phase alternating current electricity.
  • the second component is three conductive first shield members arranged in parallel at intervals and individually surrounding the periphery of each of the three power cables.
  • the third component is a conductive member that is coarser than the first shield member, and collectively contacts the three first shield members in contact with the three first shield members. It is the 2nd shield member which encloses.
  • a wire harness according to a second aspect of the present invention is an aspect of the wire harness according to the first aspect.
  • the wire harness according to the second aspect collectively clamps the three first shield members and the second shield member having flexibility, and holds the three first shield members arranged in parallel. And a holding member for holding the second shield member in contact with the three first shield members.
  • a wire harness according to a third aspect of the present invention is an aspect of the wire harness according to the second aspect.
  • the wire harness which concerns on a 3rd aspect is further connected with the said clamping member, and is further provided with the nonelectroconductive fastener fixed to the edge of the through-hole of a plate-shaped support body.
  • three power cables conducting symmetrical three-phase alternating current electricity are individually surrounded by three first shield members. Therefore, when both ends of the first shield member are grounded, electromagnetic induction due to the alternating current of each phase flowing in each of the three power cables is individually generated for each first shield member.
  • the three first shield members are electrically connected to each other by the second shield member in contact with them. Therefore, in each of the first shield members, the three-phase electromagnetic inductions of different phases are mixed and mutually cancel each other. As a result, excessive electromagnetic induction current is prevented from flowing to the first shield member.
  • the first shield member is a fine-grained conductive member, such as a metal pipe, for example, and surrounds the power cable near it. Therefore, the first shield member is grounded at both ends to exhibit excellent performance of the electromagnetic shield.
  • the second shield member also functions as an electromagnetic shield by grounding its both ends.
  • the second shield member which is a coarse conductive member, can not shield electromagnetic waves having short wavelengths, that is, high frequency electromagnetic waves, but high frequency electromagnetic waves are shielded by the first shield member.
  • the second shield member that collectively encloses the three power cables conducting the symmetrical three-phase alternating current, the three-phase electricitys of different phases generated by the electromagnetic induction are mixed and mutually cancel each other. Therefore, the flow of an excessive induced current to the second shield member is prevented.
  • each first shield member is relatively thin and light
  • the second shield member which is a coarse conductive member, is also relatively light. Therefore, the inconvenience of having to handle a heavy and large shield member does not occur.
  • noise electromagnetic waves generated in the power cable for conducting symmetrical three-phase alternating current are effectively shielded, and a heavy and large shield member is adopted. It is possible to prevent an excessive induced current from flowing in the shield member without doing so.
  • the three first shield members and the second shield member surrounding the periphery thereof are held in a state of being in reliable contact by the holding members. Thereby, the contact failure of a 1st shield member and a 2nd shield member is avoided.
  • the holding member can be easily attached to the middle portion of the shield member.
  • the wire harness which concerns on a 3rd aspect is equipped with the nonelectroconductive fastener connected with the clamping member. Therefore, in the process of laying the wire harness in the vehicle, the work of fixing the wire harness to a support such as the body of the vehicle becomes easy.
  • FIG. 8 is an exploded perspective view of a portion of the holding member in the wire harness 10;
  • FIG. 6 is a cross-sectional view of a portion of the holding member in the wire harness 10;
  • FIG. 7 is an exploded perspective view of a portion of a bracket member in the wire harness 10;
  • It is a top view of the wire harness 10 laid by the vehicle. It is a disassembled perspective view of the part of the clamping member in the wire harness 10A which concerns on 2nd Embodiment of this invention.
  • the wire harness 10 includes at least three power cables 9, at least three first shield members 1 and one second shield member 2. Furthermore, the wire harness 10 also includes at least one holding member 3 and two bracket members 4.
  • the power cable 9 is an insulated wire constituted of a core wire 91 made of a conductive material and an insulation coating 92 made of an insulating material covering the periphery of the core wire 91.
  • the terminal fitting 8 is connected to the core wire 91 at the end of the power cable 9.
  • the wire harness 10 includes three power cables 9 arranged in parallel. However, it is also conceivable that the wire harness 10 includes two or more sets of three power cables 9.
  • the wire harness 10 further includes a cable holding member for holding the ends of the three power cables 9 in a fixed positional relationship.
  • the cable holding member holds the ends of the three power cables 9 arranged in parallel in a fixed positional relationship, and electrically insulates the three power cables 9 from each other.
  • the cable holding member is a nonconductive synthetic resin member.
  • the cable holding member is a member formed by insert molding using the plurality of power cables 9 as insert members.
  • the first shield members 1 are conductive members arranged in parallel at intervals, and individually surrounding the power cables 9. Accordingly, the wire harness 10 includes the same number of first shield members 1 as the number of power cables 9. In the example shown in FIGS. 1 to 5, the wire harness 10 includes three first shield members 1 arranged in parallel. However, it is also conceivable that the wire harness 10 includes two or more sets of three first shield members 1 according to the number of power cables 9.
  • the first shield member 1 is a conductive member finer in diameter than the second shield member 2 described later, that is, a member having a high ratio of the volume of the conductor to the entire volume including the gap between the conductors.
  • the first shield member 1 is a member in which the ratio of the volume of the gap between the conductors to the entire volume is smaller than that of the second shield member 2.
  • that the ratio of the volume of the clearance gap between conductors is small also includes that the ratio of the volume of the clearance gap between conductors is zero.
  • the first shield member 1 is a metal pipe member surrounding the power cable 9.
  • the pipe member is made of, for example, a metal-based material such as copper, stainless steel, or aluminum. It is conceivable that a plated layer or a layer of paint is formed on the surface of the pipe member as required.
  • the first shield member 1 is a braided wire formed of a cylindrically woven metal wire.
  • the braided wire is made of a wire mainly composed of a metal such as copper, stainless steel or aluminum.
  • the metal wire forming the braided wire is braided with as fine an eye as possible, that is, it is braided such that the gap is as small as possible. desirable.
  • the first shield member 1 is electrically connected to the second shield member 2 by being in contact with the second shield member 2. Furthermore, in the state in which the wire harness 10 is laid in the vehicle, the first shield member 1 is electrically connected to the reference potential body such as the body of the vehicle via the second shield member 2.
  • the second shield member 2 is a conductive member that collectively surrounds the three first shield members 1 in a state of being in contact with the three first shield members 1. Further, the second shield member 2 is a conductive member that is coarser than the first shield member 1, that is, a member having a low ratio of the volume of the conductor to the entire volume including the gap between the conductors. In other words, the second shield member 2 is a member in which the ratio of the volume of the gap between the conductors to the entire volume is larger than that of the first shield member 1.
  • the second shield member 2 is a metal cloth which is a woven fabric of metal threads.
  • the metal cloth is formed in a tubular shape by being wound around the three first shield members 1 individually surrounding each of the three power cables 9.
  • the metal cloth is, for example, a cloth having a mesh structure in which yarns of a metal containing copper as a main component cross in a longitudinal direction and a transverse direction. Moreover, the metal cloth may have a structure in which a flexible film made of a resin material is attached to a metal yarn cloth. A gap is formed between metal threads (conductors) in the metal cloth.
  • the metal thread forming the metal cloth is, for example, mainly composed of a metal such as iron, copper, stainless steel or aluminum.
  • the 2nd shield member 2 is a braided wire comprised with the wire of the metal braided cylindrically.
  • the braided wire is made of a wire mainly composed of a metal such as iron, copper, stainless steel or aluminum.
  • the metal wire forming the braided wire is braided with a relatively coarse mesh, that is, braided so as to increase the gap.
  • the second shield member 2 made of a braided wire or metal cloth has conductivity and flexibility.
  • the second shield member 2 is formed of a thin metal plate which is formed into a tubular shape, in which a plurality of holes or a plurality of slits are formed.
  • the second shield member 2 has grounded portions 21 electrically connected to the reference potential body 70 at both end portions in the longitudinal direction.
  • the reference potential body 70 is, for example, a body of a metal vehicle.
  • the holding member 3 is a member for collectively holding the three first shield members 1 and the second shield member 2 surrounding the periphery thereof.
  • the holding member 3 holds the three first shield members 1 in a state of being arranged in parallel and holds the second shield member 2 in contact with the three first shield members 1.
  • the holding members 3 are attached to at least one intermediate portion between the two ends of the three first shield members 1 and the second shield member 2 surrounding the periphery thereof in the longitudinal direction. In the example shown in FIG. 1, two clamping members 3 are attached to each of the two intermediate portions.
  • the holding member 3 is a nonconductive member.
  • the holding member 3 is, for example, a molded member of synthetic resin, and is made of a material such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), or polyamide (PA). It is configured.
  • the holding member 3 is a metal member or the like. It is also conceivable to be composed of a conductive member.
  • the holding member 3 is constituted by a first holding member 3x and a second holding member 3y which are combined with the three first shield members 1 and one second shield member 2 interposed therebetween. There is. Further, three grooves 31 are formed in each of the first holding member 3x and the second holding member 3y.
  • the groove portion 31 is a groove-shaped portion in which each of the three first shield members 1 surrounding the periphery of each of the three power cables 9 is fitted through the flexible second shield member 2.
  • Each of the first shield members 1 is sandwiched between the groove 31 of the first holding member 3 x and the groove 31 of the second holding member 3 y facing each other via the second shield member 2.
  • the second shield member 2 having flexibility is held between the groove 31 of the first holding member 3x and the groove 31 of the second holding member 3y, whereby the outer peripheral surface of each of the three first shield members 1 is obtained. Transform along.
  • the three first shield members 1 and the one second shield member 2 are sandwiched between the first holding member 3x and the second holding member 3y, the three first shield members 1 through which the power cable 9 penetrates are: It is held in a state of being arranged in parallel at intervals. Furthermore, the second shield member 2 is in close contact with the three first shield members 1.
  • first sandwiching member 3x and the second sandwiching member 3y are connected by the connector in a state in which the first shield member 1 and the second shield member 2 are sandwiched. Thereby, the first holding member 3x and the second holding member 3y are held in a combined state. Furthermore, the second shield member 2 is held in close contact with the three first shield members 1.
  • the connector is a screw 51 and a nut 52. Therefore, in the first holding member 3x and the second holding member 3y shown in FIG. 2, a screw hole 32 through which a screw 51 for connection passes is formed.
  • Bracket member 4 is a conductive member interposed between the grounded portion 21 of each of both ends of the second shield member 2 and the reference potential body 70 and for grounding the grounded portion 21.
  • the bracket member 4 is a conductive member interposed between the grounded portion 21 of each of both ends of the second shield member 2 and the reference potential body 70 and for grounding the grounded portion 21.
  • the two grounded portions 21 at both ends of the second shield member 2 are electrically connected to the reference potential body 70 through the conductive bracket member 4 and the metal case 7. Be done. It is conceivable that the bracket member 4 is made of, for example, a material containing a metal such as copper, stainless steel, or aluminum as a main component.
  • the bracket member 4 collectively clamps the ends of the three first shield members 1 and the grounded portions 21 (ends) of the second shield member 2 that surround the periphery of the three first shield members 1. It is a member.
  • bracket member 4 shown in FIG. 4 is a first bracket member 4x and a second bracket member which are combined with the ends of the three first shield members 1 and the grounded portion 21 of one second shield member 2 interposed therebetween. It consists of 4y. Further, each of the first bracket member 4 x and the second bracket member 4 y has a holding portion 41 and a flange portion 42.
  • the holding portion 41 of the bracket member 4 is a portion for holding the end portions of the three first shield members 1 and the grounded portion 21 of the one second shield member 2.
  • Three grooves 411 are formed in the holding portion 41 of the bracket member 4.
  • the groove portion 411 of the holding portion 41 is a groove-shaped portion in which each of the three first shield members 1 surrounding the periphery of each of the three power cables 9 is fitted through the second shield member 2 having flexibility. .
  • Each of the first shield members 1 is sandwiched between the groove portion 411 of the first bracket member 4x and the groove portion 411 of the second bracket member 4y facing each other through the second shield member 2.
  • the power cable 9 passes through 3
  • the first shield members 1 are held spaced apart and arranged in parallel.
  • first bracket member 4x and the second bracket member 4y are connected by a connector in a state in which the first shield member 1 and the second shield member 2 are sandwiched. Thereby, the first bracket member 4x and the second bracket member 4y are held in a combined state. Furthermore, the second shield member 2 is held in close contact with the three first shield members 1.
  • the connector is a screw 5. Therefore, a screw hole 412 into which the connection screw 5 is tightened is formed in the holding portion 41 of the first bracket member 4x and the holding portion 41 of the second bracket member 4y shown in FIG.
  • the flange portion 42 of the bracket member 4 is a portion fixed to the edge of the opening for introducing the power cable 9 in the housing 7 by a screw or the like.
  • the grounded portion 21 of the second shield member 2 is electrically connected to the bracket member 4 by the structure shown in FIG. Further, the bracket member 4 is electrically connected to the housing 7 by fixing its flange portion 42 to the housing 7. Further, the housing 7 is electrically connected to a reference potential body 70 such as a vehicle body.
  • the grounded portion 21 of the second shield member 2 is electrically connected to the reference potential body 70 via the bracket member 4 and the housing 7. Then, the second shield member 2 and the reference potential body 70 form an electrical closed loop together with other conductive members such as the housing 7.
  • each of the three first shield members 1 and the reference potential body 70 are also different from the other members such as the second shield member 2 and the housing 7.
  • An electrically closed loop is formed with the conductive member.
  • the first shield member 1 is a fine-grained conductive member such as a metal pipe, for example, and surrounds the power cable 9 in the vicinity thereof. Therefore, the first shield member 1 exhibits excellent electromagnetic shielding performance by being grounded at both ends.
  • the second shield member 2 also functions as an electromagnetic shield by grounding its both ends.
  • the second shield member 2 which is a coarse conductive member can not shield electromagnetic waves of short wavelength, that is, high frequency, high frequency electromagnetic waves are shielded by the first shield member 1.
  • the second shield member 2 which collectively surrounds the three power cables 9 conducting the symmetrical three-phase alternating current, the three-phase electricitys of different phases generated by the electromagnetic induction are mixed and mutually cancel each other. . Therefore, the flow of an excessive induced current to the second shield member 2 is prevented.
  • each of the first shield members 1 is relatively thin and light, and the second shield member 2 which is a coarse conductive member is also relatively light. Therefore, the inconvenience of having to handle a heavy and large shield member does not occur.
  • the three first shield members 1 and the second shield members 2 surrounding the peripheries of the three first shield members 1 are held in a state of being reliably in contact with each other by the sandwiching member 3. Thereby, the contact failure of the 1st shield member 1 and the 2nd shield member 2 is avoided. Also, unlike in the case where the respective shield members 1 and 2 are passed through the cylindrical members from their end portions, the holding member 3 is easily attached to the intermediate portion of the first shield member 1 and the second shield member 2 It is possible.
  • FIG. 6 is an exploded perspective view of a portion of the holding member 3A in the wire harness 10A.
  • FIG. 6 the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals.
  • FIGS. 1 to 5 the same reference numerals.
  • the wire harness 10A collectively includes three power cables 9, three first shield members 1 individually surrounding the periphery of each power cable 9, and three first shield members 1 A second shield member 2 which surrounds, one or more holding members 3A, and two bracket members 4 are provided.
  • the holding member 3 ⁇ / b> A has a configuration in which the fastener 6 is added as compared to the holding member 3 of the wire harness 10.
  • the fastener 6 is a known tool that is fastened to the edge of a through hole of a plate-like support such as a vehicle body panel.
  • the fastener 6 is made of a nonconductive material integrally connected to the holding member 3.
  • the fastener 6 is, for example, a molded member of synthetic resin.
  • the fastener 6 is made of a material such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), or polyamide (PA).
  • the fastener 6 has an insertion portion 61 inserted into a mounting hole which is a through hole of a plate material, and a flange portion 62 to which the main body portion of the holding member 3A is fixed.
  • the fastener 6 clamps the edge of the mounting hole by the insertion portion 61 and the flange portion 62.
  • One of the first holding member 3x and the second holding member 3y is fixed to one surface of the flange portion 62, and the insertion portion 61 is provided upright on the other surface.
  • the flange portion 62 is formed in a dish shape having a larger area than the area of the mounting hole so as to close the mounting hole.
  • the portions protruding on both sides are pressed in contact with the edge of the mounting hole and contract to the width of the mounting hole.
  • the shape of the portion projecting on both sides returns to a width larger than the width of the mounting hole on the back side of the edge of the mounting hole.
  • the portions of the insertion portion 61 protruding to both sides and the flange portion 62 sandwich the edge of the mounting hole from both the front and back sides.
  • the fasteners 6 are fixed to the mounting holes of the plate.
  • the wire harness 10A includes a nonconductive fastener 6 connected to the clamping member 3A. Therefore, in the process of laying the wire harness 10A in the vehicle, the work of fixing the intermediate portion of the wire harness 10A to a support such as the body of the vehicle becomes easy.
  • the holding member 3 is configured by a first holding member 3x and a second holding member 3y connected by the screw 51 and the nut 52.
  • the first holding member 3x and the second holding member 3y have a structure that can be connected without using a connector such as the screw 51.
  • the first holding member 3x and the second holding member 3y are connected by a welding or locking mechanism or the like.
  • first holding member 3x and the second holding member 3y are integrally formed by having a structure in which they are connected at one end of each.
  • the three first shield members 1 are arranged side by side, that is, arranged in three dimensions rather than arranged in two dimensions.
  • the three first shield members 1 are arranged in parallel at the position at the apex of an equilateral triangle when viewed from their longitudinal direction.

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  • Engineering & Computer Science (AREA)
  • Insulated Conductors (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Indoor Wiring (AREA)
  • Processing Of Terminals (AREA)

Abstract

The purpose of the present invention is not only to effectively shield electromagnetic noise waves generated by power cables but also to prevent an excessive induced current from flowing in shielding members. This wire harness is equipped with: three power cables for conducting symmetrical three-phase alternating-current electricity; three conductive first shielding members that individually surround the three power cables; and a second shielding member that surrounds all the three first shielding members together while in contact with the three first shielding members. The second shielding member is coarser than the first shielding members (1).

Description

ワイヤハーネスWire harness
　本発明は、電力ケーブルの周囲を囲む導電性のシールド部材を備えるワイヤハーネスに関する。 The present invention relates to a wire harness including a conductive shield member surrounding a power cable.
　従来、自動車に代表される車両に敷設されるワイヤハーネスは、電線の周囲を囲みノイズ電磁波を遮蔽する導電性のシールド部材を備える場合がある。シールド部材の中空部に通される電線は、通常、非シールド電線である。非シールド電線は、編組線などのシールド部材で覆われていない絶縁電線である。 2. Description of the Related Art Conventionally, a wire harness installed in a vehicle typified by a car may include a conductive shield member that surrounds the periphery of a wire and shields noise electromagnetic waves. The wire passed through the hollow portion of the shield member is usually a non-shielded wire. An unshielded electric wire is an insulated wire which is not covered by shield members, such as a braided wire.
　例えば、特許文献１に示されるように、車両のワイヤハーネスは、シールド部材として、筒状に編まれた金属の線材により構成された編組線を備える場合がある。編組線は、電線の変形に応じて変形自在な柔軟性を有する筒状のシールド部材である。 For example, as disclosed in Patent Document 1, a wire harness of a vehicle may be provided with a braided wire formed of a cylindrically woven metal wire as a shield member. The braided wire is a cylindrical shield member having flexibility which can be deformed according to the deformation of the electric wire.
　また、特許文献２に示されるように、自動車における底板の下面（床下）などの外部に露出する場所に敷設されるワイヤハーネスは、電線の周囲を囲む筒状の保護部材である金属パイプを備える場合がある。金属パイプは、道路から飛び散る砂利などの異物から電線を保護する部材であると同時に、ノイズ電磁波を遮蔽するシールド部材でもある。 In addition, as disclosed in Patent Document 2, a wire harness laid in a place exposed to the outside such as a lower surface (under floor) of a bottom plate in an automobile includes a metal pipe which is a cylindrical protective member surrounding the periphery of an electric wire. There is a case. The metal pipe is a member that protects the electric wire from foreign matter such as gravel that splashes from the road, and is also a shield member that shields noise electromagnetic waves.
　シールド部材を備えるワイヤハーネスにおいて、電線の両端部は、接続相手の機器を収容する金属製の筐体の開口から筐体内へ配線される。また、シールド部材は、静電シールドの効果を得るために、通常、その両端部が金属製の筐体と電気的に接続される。金属製の筐体は、自動車のボディなどの基準電位体と電気的に接続されているため、シールド部材は、筐体を介して接地される。この場合、シールド部材及び基準電位体は、筐体などの他の導電性部材とともに閉ループを形成している。 In a wire harness including a shield member, both end portions of the electric wire are wired into the housing from the opening of a metal housing that accommodates a device to be connected. Also, in order to obtain the effect of electrostatic shielding, the shield member is usually electrically connected to the metal casing at both ends. The metal casing is electrically connected to a reference potential body such as a car body, so the shield member is grounded via the casing. In this case, the shield member and the reference potential body form a closed loop with another conductive member such as a housing.
　シールド部材が囲む電線が交流電流を伝送する電力ケーブルである場合、誘導電流が、シールド部材及び基準電位体により形成される閉ループに流れる。また、シールド部材に流れる誘導電流は、電力ケーブルに流れる交流電流の電流値及び周波数が大きいほど大きくなる。 When the electric wire which a shield member encloses is a power cable which transmits alternating current, an induction current flows into the closed loop formed by a shield member and a reference electric potential object. Also, the induced current flowing through the shield member increases as the current value and frequency of the alternating current flowing through the power cable increase.
　また、電気自動車及びハイブリッド自動車などの電動車両においては、三相モータが採用され、三相モータに接続されるワイヤハーネスは、対称三相交流の電気を伝導する３本の電力ケーブルを備える。この場合、各相の交流電気ごとに生じる電磁誘導による電気の位相のずれは同じである。なお、以下の説明において、特段の説明なく三相交流という用語が用いられた場合、それは対称三相交流のこと、即ち、それぞれの位相のずれ（１２０度）が同じである三相交流のことを意味する。 In addition, in electric vehicles such as electric vehicles and hybrid vehicles, a three-phase motor is adopted, and a wire harness connected to the three-phase motor is provided with three power cables for conducting symmetrical three-phase alternating current. In this case, the phase shift of electricity due to electromagnetic induction generated for each alternating current electricity of each phase is the same. In the following description, when the term “three-phase alternating current” is used without particular explanation, it means “symmetrical three-phase alternating current”, that is, three-phase alternating current whose phase shift (120 degrees) is the same. Means
　三相交流の電気を伝導する３本の電力ケーブルが、両端部において接地された１つのシールド部材によって一括して囲まれている場合、３本の電力ケーブル各々に流れる各相の交流電流による電磁誘導が、１つのシールド部材において生じる。そのため、電磁誘導により生じた位相の異なる三相の電気は、１つのシールド部材において混合されて相互に打ち消し合う。 When three power cables conducting three-phase alternating current are collectively enclosed by one shield member grounded at both ends, electromagnetic waves generated by alternating current of each phase flowing in each of the three power cables Induction occurs at one shield member. Therefore, three phase electricity of different phases generated by electromagnetic induction are mixed in one shield member and mutually cancel each other.
　一方、三相交流の電気を伝導する３本の電力ケーブルが、３つのシールド部材によって個別に囲まれ、それらシールド部材の両端部が接地されている場合、３本の電力ケーブル各々に流れる各相の交流電流による電磁誘導が、シールド部材ごとに個別に生じる。 On the other hand, when three power cables conducting three-phase alternating current are individually surrounded by three shield members, and both ends of the shield members are grounded, each phase flowing in each of the three power cables The electromagnetic induction by the alternating current occurs individually for each shield member.
　以下の説明において、両端部が接地され、三相交流の電気を伝導する３本の電力ケーブルを一括して囲むシールド部材のことを一括囲繞式シールド部材と称する。また、両端部が接地され、三相交流の電気を伝導する３本の電力ケーブル各々を個別に囲むシールド部材のことを個別囲繞式シールド部材と称する。 In the following description, a shield member that is grounded at both ends and collectively surrounds three power cables that conduct three-phase alternating current is referred to as a collectively enclosed shield member. In addition, a shield member which is grounded at both ends and individually surrounds each of the three power cables conducting three-phase alternating current is referred to as a separate surrounding shield member.
特開２００６－３４４３９８号公報Japanese Patent Application Publication No. 2006-344398 特開２０１１－１９３６７７号公報JP, 2011-193677, A
　昨今、電気自動車及びハイブリッド自動車などの電動車両において、インバータ回路から三相モータへ供給される交流電気の高パワー化及び高周波数化が進んでいる。そのため、個別囲繞式シールド部材が採用される場合、過大な誘導電流が各シールド部材に流れやすい。また、電力ケーブル及びシールド部材が長い場合も、過大な誘導電流が各シールド部材に流れやすい。 Recently, in electric vehicles such as electric vehicles and hybrid vehicles, higher power and higher frequency of alternating current electricity supplied from an inverter circuit to a three-phase motor have been advanced. Therefore, when the separate surrounding shield member is adopted, an excessive induced current is likely to flow to each shield member. In addition, even when the power cable and the shield member are long, excessive induced current is likely to flow to each shield member.
　過大な誘導電流がシールド部材に流れると、シールド部材で発生する熱によって周辺の部材が破損するという問題が生じる。 When an excessive induced current flows in the shield member, there arises a problem that heat generated in the shield member may damage surrounding members.
　一方、一括囲繞式シールド部材が採用される場合、三相の誘導電流が相互に打ち消し合うため、シールド部材に過大電流が流れる問題は生じないが、重く大きなシールド部材が必要となる。重く大きなシールド部材を取り扱うことは不便であるため、そのようなシールド部材が採用されないことが望ましい。また、シールド部材の重量低減のために、薄く目の粗い導電性部材からなる一括囲繞式シールド部材が採用されると、主として高周波ノイズの遮蔽性能が悪化する。 On the other hand, when the encircling shield type shielding member is adopted, the three-phase induction currents mutually cancel each other, so that the problem of an excess current flowing in the shielding member does not occur, but a heavy and large shielding member is required. Because it is inconvenient to handle heavy and large shield members, it is desirable that no such shield members be employed. In addition, if a collective surrounding shield member made of a thin and coarse conductive member is adopted to reduce the weight of the shield member, the shielding performance of high frequency noise is mainly deteriorated.
　本発明の目的は、対称三相交流の電気を伝導する電力ケーブルにおいて生じるノイズ電磁波を効果的に遮蔽し、さらに、重く大きなシールド部材を採用することなくシールド部材に過大な誘導電流が流れることを防止することである。 SUMMARY OF THE INVENTION The object of the present invention is to effectively shield noise electromagnetic waves generated in a power cable conducting symmetrical three-phase alternating current, and to allow excessive induced current to flow in the shield member without adopting a heavy and large shield member. It is to prevent.
　本発明の第１の態様に係るワイヤハーネスは、以下に示される各構成要素を備えている。
（１）第１の構成要素は、対称三相交流の電気を伝導する３本の電力ケーブルである。
（２）第２の構成要素は、間隔を空けて並列に配列され、３本の上記電力ケーブル各々の周囲を個別に囲む導電性の３つの第一シールド部材である。
（３）第３の構成要素は、上記第一シールド部材よりも目の粗い導電性部材であり、３つの上記第一シールド部材に接触した状態で３つの上記第一シールド部材の周囲を一括して囲む第二シールド部材である。 A wire harness according to a first aspect of the present invention includes the components shown below.
(1) The first component is three power cables that conduct symmetrical three-phase alternating current electricity.
(2) The second component is three conductive first shield members arranged in parallel at intervals and individually surrounding the periphery of each of the three power cables.
(3) The third component is a conductive member that is coarser than the first shield member, and collectively contacts the three first shield members in contact with the three first shield members. It is the 2nd shield member which encloses.
　本発明の第２の態様に係るワイヤハーネスは、第１の態様に係るワイヤハーネスの一態様である。第２の態様に係るワイヤハーネスは、３つの上記第一シールド部材及び柔軟性を有する上記第二シールド部材を一括して挟持し、３つの上記第一シールド部材を並列に配列された状態に保持するとともに上記第二シールド部材を３つの上記第一シールド部材に接触する状態に保持する挟持部材をさらに備える。 A wire harness according to a second aspect of the present invention is an aspect of the wire harness according to the first aspect. The wire harness according to the second aspect collectively clamps the three first shield members and the second shield member having flexibility, and holds the three first shield members arranged in parallel. And a holding member for holding the second shield member in contact with the three first shield members.
　本発明の第３の態様に係るワイヤハーネスは、第２の態様に係るワイヤハーネスの一態様である。第３の態様に係るワイヤハーネスは、上記挟持部材に連結されており、板状の支持体の貫通孔の縁部に留められる非導電性の留め具をさらに備える。 A wire harness according to a third aspect of the present invention is an aspect of the wire harness according to the second aspect. The wire harness which concerns on a 3rd aspect is further connected with the said clamping member, and is further provided with the nonelectroconductive fastener fixed to the edge of the through-hole of a plate-shaped support body.
　第１～第３の態様に係るワイヤハーネスにおいて、対称三相交流の電気を伝導する３本の電力ケーブルが、３つの第一シールド部材によって個別に囲まれている。そのため、第一シールド部材の両端部が接地されると、３本の電力ケーブル各々に流れる各相の交流電流による電磁誘導が、第一シールド部材ごとに個別に生じる。しかしながら、３つの第一シールド部材は、それらに接触する第二シールド部材によって相互に電気的に接続されている。そのため、第一シールド部材各々において、位相の異なる三相の電磁誘導の電気は、混合されて相互に打ち消し合う。その結果、過大な電磁誘導電流が第一シールド部材に流れることは防がれる。 In the wire harness according to the first to third aspects, three power cables conducting symmetrical three-phase alternating current electricity are individually surrounded by three first shield members. Therefore, when both ends of the first shield member are grounded, electromagnetic induction due to the alternating current of each phase flowing in each of the three power cables is individually generated for each first shield member. However, the three first shield members are electrically connected to each other by the second shield member in contact with them. Therefore, in each of the first shield members, the three-phase electromagnetic inductions of different phases are mixed and mutually cancel each other. As a result, excessive electromagnetic induction current is prevented from flowing to the first shield member.
　また、第一シールド部材は、例えば金属パイプのように目の細かい導電性部材であり、電力ケーブルをその近くで囲む。そのため、第一シールド部材は、両端部において接地されることにより、優れた電磁シールドの性能を発揮する。 Also, the first shield member is a fine-grained conductive member, such as a metal pipe, for example, and surrounds the power cable near it. Therefore, the first shield member is grounded at both ends to exhibit excellent performance of the electromagnetic shield.
　一方、第二シールド部材も、両端部が接地されることにより、電磁シールドの機能を果たす。ここで、目の粗い導電性部材である第二シールド部材は、波長の短い電磁波、即ち、高周波数の電磁波を遮蔽できないが、高周波数の電磁波は、第一シールド部材によって遮蔽される。また、対称三相交流の電気を伝導する３本の電力ケーブルを一括して囲む第二シールド部材においては、電磁誘導により生じた位相の異なる三相の電気は混合されて相互に打ち消し合う。そのため、過大な誘導電流が第二シールド部材に流れることは防がれる。 On the other hand, the second shield member also functions as an electromagnetic shield by grounding its both ends. Here, the second shield member, which is a coarse conductive member, can not shield electromagnetic waves having short wavelengths, that is, high frequency electromagnetic waves, but high frequency electromagnetic waves are shielded by the first shield member. Further, in the second shield member that collectively encloses the three power cables conducting the symmetrical three-phase alternating current, the three-phase electricitys of different phases generated by the electromagnetic induction are mixed and mutually cancel each other. Therefore, the flow of an excessive induced current to the second shield member is prevented.
　また、第一シールド部材各々は、比較的細く軽量であり、目の粗い導電性部材である第二シールド部材も、比較的軽量である。そのため、重く大きなシールド部材を取り扱わなければならないという不便は生じない。 Also, each first shield member is relatively thin and light, and the second shield member, which is a coarse conductive member, is also relatively light. Therefore, the inconvenience of having to handle a heavy and large shield member does not occur.
　以上のことから、第１～第３の態様に係るワイヤハーネスによれば、対称三相交流の電気を伝導する電力ケーブルにおいて生じるノイズ電磁波を効果的に遮蔽し、さらに、重く大きなシールド部材を採用することなくシールド部材に過大な誘導電流が流れることを防止することが可能となる。 From the above, according to the wire harnesses according to the first to third aspects, noise electromagnetic waves generated in the power cable for conducting symmetrical three-phase alternating current are effectively shielded, and a heavy and large shield member is adopted. It is possible to prevent an excessive induced current from flowing in the shield member without doing so.
　また、第２の態様において、３つの第一シールド部材とそれらの周囲を囲む第二シールド部材とは、挟持部材によって確実に接触する状態に保持される。これにより、第一シールド部材と第二シールド部材との接触不良が回避される。また、各シールド部材がそれらの端部から筒状の部材に通される場合とは異なり、挟持部材は、シールド部材の中間部位に容易に取り付け可能である。 Further, in the second aspect, the three first shield members and the second shield member surrounding the periphery thereof are held in a state of being in reliable contact by the holding members. Thereby, the contact failure of a 1st shield member and a 2nd shield member is avoided. In addition, unlike the case where each shield member is passed through the cylindrical member from the end thereof, the holding member can be easily attached to the middle portion of the shield member.
　また、第３の態様に係るワイヤハーネスは、挟持部材に連結された非導電性の留め具を備える。そのため、ワイヤハーネスを車両に敷設する工程において、ワイヤハーネスを車両のボディなどの支持体に固定する作業が容易となる。 Moreover, the wire harness which concerns on a 3rd aspect is equipped with the nonelectroconductive fastener connected with the clamping member. Therefore, in the process of laying the wire harness in the vehicle, the work of fixing the wire harness to a support such as the body of the vehicle becomes easy.
本発明の第１実施形態に係るワイヤハーネス１０の平面図である。It is a top view of wire harness 10 concerning a 1st embodiment of the present invention. ワイヤハーネス１０における挟持部材の部分の分解斜視図である。FIG. 8 is an exploded perspective view of a portion of the holding member in the wire harness 10; ワイヤハーネス１０における挟持部材の部分の断面図である。FIG. 6 is a cross-sectional view of a portion of the holding member in the wire harness 10; ワイヤハーネス１０におけるブラケット部材の部分の分解斜視図である。FIG. 7 is an exploded perspective view of a portion of a bracket member in the wire harness 10; 車両に敷設されたワイヤハーネス１０の平面図である。It is a top view of the wire harness 10 laid by the vehicle. 本発明の第２実施形態に係るワイヤハーネス１０Ａにおける挟持部材の部分の分解斜視図である。It is a disassembled perspective view of the part of the clamping member in the wire harness 10A which concerns on 2nd Embodiment of this invention.
　以下、添付の図面を参照しながら、本発明の実施形態について説明する。以下の実施形態は、本発明を具体化した一例であり、本発明の技術的範囲を限定する事例ではない。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example limiting the technical scope of the present invention.
　＜第１実施形態＞
　＜概略構成＞
　まず、図１～５を参照しつつ、本発明の第１実施形態に係るワイヤハーネス１０について説明する。図１に示されるように、ワイヤハーネス１０は、少なくとも３本の電力ケーブル９、少なくとも３つの第一シールド部材１及び１つの第二シールド部材２を備えている。さらに、ワイヤハーネス１０は、少なくとも１つの挟持部材３及び２つのブラケット部材４も備えている。 First Embodiment
<Schematic configuration>
First, a wire harness 10 according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the wire harness 10 includes at least three power cables 9, at least three first shield members 1 and one second shield member 2. Furthermore, the wire harness 10 also includes at least one holding member 3 and two bracket members 4.
　＜電力ケーブル＞
　電力ケーブル９は、導電材料からなる芯線９１と、芯線９１の周囲を覆う絶縁材料からなる絶縁被覆９２とにより構成された絶縁電線である。例えば、電力ケーブル９の端部の芯線９１には、端子金具８が接続されている。なお、図１，２に示される例では、ワイヤハーネス１０は、並列に配列された３本の電力ケーブル９を備えている。しかしながら、ワイヤハーネス１０が、３本の電力ケーブル９のセットを２セット以上備えることも考えられる。 <Power cable>
The power cable 9 is an insulated wire constituted of a core wire 91 made of a conductive material and an insulation coating 92 made of an insulating material covering the periphery of the core wire 91. For example, the terminal fitting 8 is connected to the core wire 91 at the end of the power cable 9. In the example shown in FIGS. 1 and 2, the wire harness 10 includes three power cables 9 arranged in parallel. However, it is also conceivable that the wire harness 10 includes two or more sets of three power cables 9.
　また、ワイヤハーネス１０が、３本の電力ケーブル９の端部を一定の位置関係に保持するケーブル保持部材をさらに備えることも考えられる。この場合、ケーブル保持部材は、並列配置された３本の電力ケーブル９の端部を一定の位置関係で保持するとともに、３本の電力ケーブル９相互間を電気的に絶縁する。例えば、ケーブル保持部材が、非導電性の合成樹脂の部材であることが考えられる。この場合、ケーブル保持部材が、複数の電力ケーブル９をインサート部材とするインサート成形によって成形された部材であることが考えられる。 It is also conceivable that the wire harness 10 further includes a cable holding member for holding the ends of the three power cables 9 in a fixed positional relationship. In this case, the cable holding member holds the ends of the three power cables 9 arranged in parallel in a fixed positional relationship, and electrically insulates the three power cables 9 from each other. For example, it is conceivable that the cable holding member is a nonconductive synthetic resin member. In this case, it is conceivable that the cable holding member is a member formed by insert molding using the plurality of power cables 9 as insert members.
　＜第一シールド部材＞
　第一シールド部材１は、間隔を空けて並列に配列され、電力ケーブル９各々の周囲を個別に囲む導電性の部材である。従って、ワイヤハーネス１０は、電力ケーブル９の数と同数の第一シールド部材１を備えている。図１～５に示される例では、ワイヤハーネス１０は、並列に配列された３つの第一シールド部材１を備えている。しかしながら、ワイヤハーネス１０が、電力ケーブル９の本数に応じて、３つの第一シールド部材１のセットを２セット以上備えることも考えられる。 <First shield member>
The first shield members 1 are conductive members arranged in parallel at intervals, and individually surrounding the power cables 9. Accordingly, the wire harness 10 includes the same number of first shield members 1 as the number of power cables 9. In the example shown in FIGS. 1 to 5, the wire harness 10 includes three first shield members 1 arranged in parallel. However, it is also conceivable that the wire harness 10 includes two or more sets of three first shield members 1 according to the number of power cables 9.
　また、第一シールド部材１は、後述する第二シールド部材２よりも目の細かい導電性部材、即ち、導体間の隙間を含む全体の体積に占める導体の体積の比率が高い部材である。換言すれば、第一シールド部材１は、第二シールド部材２よりも、全体の体積に占める導体間の隙間の体積の比率が小さい部材である。なお、導体間の隙間の体積の比率が小さいとは、導体間の隙間の体積の比率がゼロであることも含む。 The first shield member 1 is a conductive member finer in diameter than the second shield member 2 described later, that is, a member having a high ratio of the volume of the conductor to the entire volume including the gap between the conductors. In other words, the first shield member 1 is a member in which the ratio of the volume of the gap between the conductors to the entire volume is smaller than that of the second shield member 2. In addition, that the ratio of the volume of the clearance gap between conductors is small also includes that the ratio of the volume of the clearance gap between conductors is zero.
　例えば、第一シールド部材１が、電力ケーブル９の周囲を囲う金属製のパイプ部材であることが考えられる。この場合、パイプ部材は、例えば、銅、ステンレス又はアルミニウムなどの金属を主成分とする材料で構成されていることが考えられる。パイプ部材の表面には、必要に応じてメッキ層又は塗料の層が形成されていることが考えられる。 For example, it is conceivable that the first shield member 1 is a metal pipe member surrounding the power cable 9. In this case, it is conceivable that the pipe member is made of, for example, a metal-based material such as copper, stainless steel, or aluminum. It is conceivable that a plated layer or a layer of paint is formed on the surface of the pipe member as required.
　また、第一シールド部材１が、筒状に編まれた金属の線材により構成された編組線であることも考えられる。この場合、編組線が、銅、ステンレス又はアルミニウムなどの金属を主成分とする線材により構成されていることが考えられる。但し、第一シールド部材１が編組線である場合、その編組線を構成する金属の線材が、極力細かい目で編まれていること、即ち、極力隙間が小さくなるように編まれていることが望ましい。 Moreover, it is also conceivable that the first shield member 1 is a braided wire formed of a cylindrically woven metal wire. In this case, it is conceivable that the braided wire is made of a wire mainly composed of a metal such as copper, stainless steel or aluminum. However, in the case where the first shield member 1 is a braided wire, the metal wire forming the braided wire is braided with as fine an eye as possible, that is, it is braided such that the gap is as small as possible. desirable.
　なお、後述するように、第一シールド部材１は、第二シールド部材２と接触することによって第二シールド部材２に対して電気的に接続されている。さらに、ワイヤハーネス１０が車両に敷設された状態において、第一シールド部材１は、第二シールド部材２を介して、車両のボディなどの基準電位体に対して電気的に接続される。 As described later, the first shield member 1 is electrically connected to the second shield member 2 by being in contact with the second shield member 2. Furthermore, in the state in which the wire harness 10 is laid in the vehicle, the first shield member 1 is electrically connected to the reference potential body such as the body of the vehicle via the second shield member 2.
　＜第二シールド部材＞
　第二シールド部材２は、３つの第一シールド部材１に接触した状態で３つの第一シールド部材１の周囲を一括して囲む導電性の部材である。また、この第二シールド部材２は、第一シールド部材１よりも目の粗い導電性部材、即ち、導体間の隙間を含む全体の体積に占める導体の体積の比率が低い部材である。換言すれば、第二シールド部材２は、第一シールド部材１よりも、全体の体積に占める導体間の隙間の体積の比率が大きい部材である。 <Second shield member>
The second shield member 2 is a conductive member that collectively surrounds the three first shield members 1 in a state of being in contact with the three first shield members 1. Further, the second shield member 2 is a conductive member that is coarser than the first shield member 1, that is, a member having a low ratio of the volume of the conductor to the entire volume including the gap between the conductors. In other words, the second shield member 2 is a member in which the ratio of the volume of the gap between the conductors to the entire volume is larger than that of the first shield member 1.
　例えば、第二シールド部材２が、金属糸の織物である金属布であることが考えられる。この場合、金属布は、３本の電力ケーブル９各々を個別に囲む３つの第一シールド部材１の周囲に巻かれて筒状に形成される。 For example, it is conceivable that the second shield member 2 is a metal cloth which is a woven fabric of metal threads. In this case, the metal cloth is formed in a tubular shape by being wound around the three first shield members 1 individually surrounding each of the three power cables 9.
　金属布は、例えば銅を主成分とする金属の糸が縦方向及び横方向に交差して織られた網目構造を有する生地である。また、金属布は、金属糸の生地に樹脂材料からなる柔軟性を有するフィルムが貼り付けられた構造を有する場合もある。金属布における金属糸（導体）の間には隙間が形成されている。金属布を形成する金属の糸は、例えば、鉄、銅、ステンレス又はアルミニウムなどの金属を主成分としている。 The metal cloth is, for example, a cloth having a mesh structure in which yarns of a metal containing copper as a main component cross in a longitudinal direction and a transverse direction. Moreover, the metal cloth may have a structure in which a flexible film made of a resin material is attached to a metal yarn cloth. A gap is formed between metal threads (conductors) in the metal cloth. The metal thread forming the metal cloth is, for example, mainly composed of a metal such as iron, copper, stainless steel or aluminum.
　また、第二シールド部材２が、筒状に編まれた金属の線材により構成された編組線であることも考えられる。この場合、編組線が、鉄、銅、ステンレス又はアルミニウムなどの金属を主成分とする線材により構成されていることが考えられる。第二シールド部材２が編組線である場合、その編組線を構成する金属の線材は、比較的粗い目で編まれていること、即ち、隙間が大きくなるように編まれていることが考えられる。編組線又は金属布からなる第二シールド部材２は、導電性及び柔軟性を有する。 Moreover, it is also considered that the 2nd shield member 2 is a braided wire comprised with the wire of the metal braided cylindrically. In this case, it is conceivable that the braided wire is made of a wire mainly composed of a metal such as iron, copper, stainless steel or aluminum. When the second shield member 2 is a braided wire, it is conceivable that the metal wire forming the braided wire is braided with a relatively coarse mesh, that is, braided so as to increase the gap. . The second shield member 2 made of a braided wire or metal cloth has conductivity and flexibility.
　また、第二シールド部材２が、複数の孔又は複数のスリットが形成され、筒状に成形された薄い金属板で構成されていることも考えられる。 In addition, it is also conceivable that the second shield member 2 is formed of a thin metal plate which is formed into a tubular shape, in which a plurality of holes or a plurality of slits are formed.
　また、図１，３，５に示されるように、第二シールド部材２は、長手方向における両端部に、基準電位体７０に対して電気的に接続される被接地部２１を有している。基準電位体７０は、例えば金属製の車両のボディなどである。 Further, as shown in FIGS. 1, 3 and 5, the second shield member 2 has grounded portions 21 electrically connected to the reference potential body 70 at both end portions in the longitudinal direction. . The reference potential body 70 is, for example, a body of a metal vehicle.
　＜挟持部材＞
　挟持部材３は、３つの第一シールド部材１とそれらの周囲を囲む第二シールド部材２とを一括して挟持する部材である。この挟持部材３は、３つの第一シールド部材１を並列に配列された状態に保持するとともに第二シールド部材２を３つの第一シールド部材１に接触する状態に保持する。挟持部材３は、３つの第一シールド部材１及びそれらの周囲を囲む第二シールド部材２の長手方向における両端部の間の少なくとも１箇所の中間部位に取り付けられている。図１に示される例では、２つの挟持部材３が、２箇所の中間部位各々に取り付けられている。 <Nipping member>
The holding member 3 is a member for collectively holding the three first shield members 1 and the second shield member 2 surrounding the periphery thereof. The holding member 3 holds the three first shield members 1 in a state of being arranged in parallel and holds the second shield member 2 in contact with the three first shield members 1. The holding members 3 are attached to at least one intermediate portion between the two ends of the three first shield members 1 and the second shield member 2 surrounding the periphery thereof in the longitudinal direction. In the example shown in FIG. 1, two clamping members 3 are attached to each of the two intermediate portions.
　挟持部材３は、非導電性の部材であることが考えられる。この場合、挟持部材３は、例えば合成樹脂の成形部材であり、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリ塩化ビニル（ＰＶＣ）、ポリエチレンテレフタラート（ＰＥＴ）、又はポリアミド（ＰＡ）などの材料により構成されている。 It is conceivable that the holding member 3 is a nonconductive member. In this case, the holding member 3 is, for example, a molded member of synthetic resin, and is made of a material such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), or polyamide (PA). It is configured.
　なお、第二シールド部材２と電気的に接続されることが好ましくない導電性の部材が、車両における挟持部材３が配置される部分に存在しない場合には、挟持部材３が、金属部材などの導電性の部材で構成されることも考えられる。 In the case where a conductive member which is not preferably electrically connected to the second shield member 2 does not exist in the portion where the holding member 3 is disposed in the vehicle, the holding member 3 is a metal member or the like. It is also conceivable to be composed of a conductive member.
　図２，３に示されるように、挟持部材３は、３つの第一シールド部材１及び１つの第二シールド部材２を挟んで組み合わされる第一挟持部材３ｘ及び第二挟持部材３ｙにより構成されている。また、第一挟持部材３ｘ及び第二挟持部材３ｙの各々には、３つの溝部３１が形成されている。 As shown in FIGS. 2 and 3, the holding member 3 is constituted by a first holding member 3x and a second holding member 3y which are combined with the three first shield members 1 and one second shield member 2 interposed therebetween. There is. Further, three grooves 31 are formed in each of the first holding member 3x and the second holding member 3y.
　溝部３１は、３本の電力ケーブル９各々の周囲を囲む３つの第一シールド部材１各々が、柔軟性を有する第二シールド部材２を介して嵌め入れられる溝状の部分である。第一シールド部材１各々は、第二シールド部材２を介して、相互に対向する第一挟持部材３ｘの溝部３１と第二挟持部材３ｙの溝部３１との間に挟み込まれる。 The groove portion 31 is a groove-shaped portion in which each of the three first shield members 1 surrounding the periphery of each of the three power cables 9 is fitted through the flexible second shield member 2. Each of the first shield members 1 is sandwiched between the groove 31 of the first holding member 3 x and the groove 31 of the second holding member 3 y facing each other via the second shield member 2.
　また、柔軟性を有する第二シールド部材２は、第一挟持部材３ｘの溝部３１と第二挟持部材３ｙの溝部３１との間に挟み込まれることにより、３つの第一シールド部材１各々の外周面に沿って変形する。 The second shield member 2 having flexibility is held between the groove 31 of the first holding member 3x and the groove 31 of the second holding member 3y, whereby the outer peripheral surface of each of the three first shield members 1 is obtained. Transform along.
　３つの第一シールド部材１及び１つの第二シールド部材２が第一挟持部材３ｘ及び第二挟持部材３ｙの間に挟み込まれると、それぞれ電力ケーブル９が貫通する３つの第一シールド部材１は、間隔を空けて並列に配列された状態で保持される。さらに、第二シールド部材２が、３つの第一シールド部材１に対して密接する。 When the three first shield members 1 and the one second shield member 2 are sandwiched between the first holding member 3x and the second holding member 3y, the three first shield members 1 through which the power cable 9 penetrates are: It is held in a state of being arranged in parallel at intervals. Furthermore, the second shield member 2 is in close contact with the three first shield members 1.
　また、第一挟持部材３ｘ及び第二挟持部材３ｙは、第一シールド部材１及び第二シールド部材２を挟み込んだ状態で、連結具によって連結される。これにより、第一挟持部材３ｘ及び第二挟持部材３ｙは、組み合わされた状態で保持される。さらに、第二シールド部材２は、３つの第一シールド部材１に対して密接した状態で保持される。 Further, the first sandwiching member 3x and the second sandwiching member 3y are connected by the connector in a state in which the first shield member 1 and the second shield member 2 are sandwiched. Thereby, the first holding member 3x and the second holding member 3y are held in a combined state. Furthermore, the second shield member 2 is held in close contact with the three first shield members 1.
　図２，３に示される例では、連結具はネジ５１及びナット５２である。そのため、図２に示される第一挟持部材３ｘ及び第二挟持部材３ｙには、連結用のネジ５１が通されるネジ孔３２が形成されている。 In the example shown in FIGS. 2 and 3, the connector is a screw 51 and a nut 52. Therefore, in the first holding member 3x and the second holding member 3y shown in FIG. 2, a screw hole 32 through which a screw 51 for connection passes is formed.
　＜ブラケット部材＞
　ブラケット部材４は、第二シールド部材２の両端部各々の被接地部２１と基準電位体７０との間に介在し、被接地部２１を接地するための導電性の部材である。例えば図５に示されるように、ワイヤハーネス１０が車両に敷設された状態において、電力ケーブル９の両端部は、接続相手の機器を収容する金属製の筐体７の開口から筐体７内へ配線される。 <Bracket member>
The bracket member 4 is a conductive member interposed between the grounded portion 21 of each of both ends of the second shield member 2 and the reference potential body 70 and for grounding the grounded portion 21. For example, as shown in FIG. 5, in the state where the wire harness 10 is laid in a vehicle, both ends of the power cable 9 enter the case 7 from the opening of the metal case 7 accommodating the device of the connection partner. Wired.
　さらに、第二シールド部材２の両端の部分である２箇所の被接地部２１は、導電性のブラケット部材４及び金属製の筐体７を介して、基準電位体７０に対して電気的に接続される。ブラケット部材４は、例えば、銅、ステンレス又はアルミニウムなどの金属を主成分とする材料で構成されていることが考えられる。 Furthermore, the two grounded portions 21 at both ends of the second shield member 2 are electrically connected to the reference potential body 70 through the conductive bracket member 4 and the metal case 7. Be done. It is conceivable that the bracket member 4 is made of, for example, a material containing a metal such as copper, stainless steel, or aluminum as a main component.
　図４に示される例では、ブラケット部材４は、３つの第一シールド部材１の端部とそれらの周囲を囲む第二シールド部材２の被接地部２１（端部）とを一括して挟持する部材である。 In the example shown in FIG. 4, the bracket member 4 collectively clamps the ends of the three first shield members 1 and the grounded portions 21 (ends) of the second shield member 2 that surround the periphery of the three first shield members 1. It is a member.
　また、図４に示されるブラケット部材４は、３つの第一シールド部材１の端部及び１つの第二シールド部材２の被接地部２１を挟んで組み合わされる第一ブラケット部材４ｘ及び第二ブラケット部材４ｙにより構成されている。また、第一ブラケット部材４ｘ及び第二ブラケット部材４ｙの各々は、挟持部４１とフランジ部４２とを有している。 Further, the bracket member 4 shown in FIG. 4 is a first bracket member 4x and a second bracket member which are combined with the ends of the three first shield members 1 and the grounded portion 21 of one second shield member 2 interposed therebetween. It consists of 4y. Further, each of the first bracket member 4 x and the second bracket member 4 y has a holding portion 41 and a flange portion 42.
　ブラケット部材４の挟持部４１は、３つの第一シールド部材１の端部及び１つの第二シールド部材２の被接地部２１を挟み込む部分である。ブラケット部材４の挟持部４１には、３つの溝部４１１が形成されている。 The holding portion 41 of the bracket member 4 is a portion for holding the end portions of the three first shield members 1 and the grounded portion 21 of the one second shield member 2. Three grooves 411 are formed in the holding portion 41 of the bracket member 4.
　挟持部４１の溝部４１１は、３本の電力ケーブル９各々の周囲を囲む３つの第一シールド部材１各々が、柔軟性を有する第二シールド部材２を介して嵌め入れられる溝状の部分である。第一シールド部材１各々は、第二シールド部材２を介して、相互に対向する第一ブラケット部材４ｘの溝部４１１と第二ブラケット部材４ｙの溝部４１１との間に挟み込まれる。 The groove portion 411 of the holding portion 41 is a groove-shaped portion in which each of the three first shield members 1 surrounding the periphery of each of the three power cables 9 is fitted through the second shield member 2 having flexibility. . Each of the first shield members 1 is sandwiched between the groove portion 411 of the first bracket member 4x and the groove portion 411 of the second bracket member 4y facing each other through the second shield member 2.
　３つの第一シールド部材１及び１つの第二シールド部材２が第一ブラケット部材４ｘの挟持部４１及び第二ブラケット部材４ｙの挟持部４１の間に挟み込まれると、それぞれ電力ケーブル９が貫通する３つの第一シールド部材１は、間隔を空けて並列に配列された状態で保持される。 When the three first shield members 1 and one second shield member 2 are sandwiched between the sandwiching portion 41 of the first bracket member 4x and the sandwiching portion 41 of the second bracket member 4y, the power cable 9 passes through 3 The first shield members 1 are held spaced apart and arranged in parallel.
　また、第一ブラケット部材４ｘ及び第二ブラケット部材４ｙは、第一シールド部材１及び第二シールド部材２を挟み込んだ状態で、連結具によって連結される。これにより、第一ブラケット部材４ｘ及び第二ブラケット部材４ｙは、組み合わされた状態で保持される。さらに、第二シールド部材２は、３つの第一シールド部材１に対して密接した状態で保持される。 In addition, the first bracket member 4x and the second bracket member 4y are connected by a connector in a state in which the first shield member 1 and the second shield member 2 are sandwiched. Thereby, the first bracket member 4x and the second bracket member 4y are held in a combined state. Furthermore, the second shield member 2 is held in close contact with the three first shield members 1.
　図４に示される例では、連結具はネジ５である。そのため、図４に示される第一ブラケット部材４ｘの挟持部４１及び第二ブラケット部材４ｙの挟持部４１には、連結用のネジ５が締め込まれるネジ孔４１２が形成されている。 In the example shown in FIG. 4, the connector is a screw 5. Therefore, a screw hole 412 into which the connection screw 5 is tightened is formed in the holding portion 41 of the first bracket member 4x and the holding portion 41 of the second bracket member 4y shown in FIG.
　一方、ブラケット部材４のフランジ部４２は、筐体７における電力ケーブル９の導入用の開口の縁部に対してネジなどにより固定される部分である。 On the other hand, the flange portion 42 of the bracket member 4 is a portion fixed to the edge of the opening for introducing the power cable 9 in the housing 7 by a screw or the like.
　第二シールド部材２の被接地部２１は、図４に示された構造により、ブラケット部材４と電気的に接続される。また、ブラケット部材４は、そのフランジ部４２が筐体７に固定されることによって筐体７と電気的に接続される。また、筐体７は、車両のボディなどの基準電位体７０と電気的に接続されている。 The grounded portion 21 of the second shield member 2 is electrically connected to the bracket member 4 by the structure shown in FIG. Further, the bracket member 4 is electrically connected to the housing 7 by fixing its flange portion 42 to the housing 7. Further, the housing 7 is electrically connected to a reference potential body 70 such as a vehicle body.
　従って、図４に示された構造により、第二シールド部材２の被接地部２１は、ブラケット部材４及び筐体７を介して、基準電位体７０に対して電気的に接続される。そして、第二シールド部材２及び基準電位体７０は、筐体７などの他の導電性部材とともに電気的な閉ループを形成する。 Therefore, according to the structure shown in FIG. 4, the grounded portion 21 of the second shield member 2 is electrically connected to the reference potential body 70 via the bracket member 4 and the housing 7. Then, the second shield member 2 and the reference potential body 70 form an electrical closed loop together with other conductive members such as the housing 7.
　また、３つの第一シールド部材１が第二シールド部材２と接触しているため、３つの第一シールド部材１各々及び基準電位体７０も、第二シールド部材２及び筐体７などの他の導電性部材とともに電気的な閉ループを形成する。 Further, since the three first shield members 1 are in contact with the second shield member 2, each of the three first shield members 1 and the reference potential body 70 are also different from the other members such as the second shield member 2 and the housing 7. An electrically closed loop is formed with the conductive member.
　＜効果＞
　ワイヤハーネス１０において、対称三相交流の電気を伝導する３本の電力ケーブル９が、３つの第一シールド部材１によって個別に囲まれている。そのため、第一シールド部材１の両端部が接地されると、３本の電力ケーブル９各々に流れる各相の交流電流による電磁誘導が、第一シールド部材１ごとに個別に生じる。しかしながら、３つの第一シールド部材１は、それらに接触する第二シールド部材２によって相互に電気的に接続されている。そのため、第一シールド部材１各々において、位相の異なる三相の電磁誘導の電気は、混合されて相互に打ち消し合う。その結果、過大な電磁誘導電流が第一シールド部材１に流れることは防がれる。 <Effect>
In the wire harness 10, three power cables 9 for conducting symmetrical three-phase alternating current are individually surrounded by three first shield members 1. Therefore, when both ends of the first shield member 1 are grounded, electromagnetic induction due to the alternating current of each phase flowing through each of the three power cables 9 is individually generated for each first shield member 1. However, the three first shield members 1 are electrically connected to each other by the second shield member 2 in contact with them. Therefore, in each of the first shield members 1, the three-phase electromagnetic inductions of different phases are mixed and mutually cancel each other. As a result, excessive electromagnetic induction current is prevented from flowing to the first shield member 1.
　また、第一シールド部材１は、例えば金属パイプのように目の細かい導電性部材であり、電力ケーブル９をその近くで囲む。そのため、第一シールド部材１は、両端部において接地されることにより、優れた電磁シールドの性能を発揮する。 The first shield member 1 is a fine-grained conductive member such as a metal pipe, for example, and surrounds the power cable 9 in the vicinity thereof. Therefore, the first shield member 1 exhibits excellent electromagnetic shielding performance by being grounded at both ends.
　一方、第二シールド部材２も、両端部が接地されることにより、電磁シールドの機能を果たす。ここで、目の粗い導電性部材である第二シールド部材２は、波長の短い、即ち、高周波数の電磁波を遮蔽できなが、高周波数の電磁波は、第一シールド部材１によって遮蔽される。また、対称三相交流の電気を伝導する３本の電力ケーブル９を一括して囲む第二シールド部材２においては、電磁誘導により生じた位相の異なる三相の電気は混合されて相互に打ち消し合う。そのため、過大な誘導電流が第二シールド部材２に流れることは防がれる。 On the other hand, the second shield member 2 also functions as an electromagnetic shield by grounding its both ends. Here, although the second shield member 2 which is a coarse conductive member can not shield electromagnetic waves of short wavelength, that is, high frequency, high frequency electromagnetic waves are shielded by the first shield member 1. Further, in the second shield member 2 which collectively surrounds the three power cables 9 conducting the symmetrical three-phase alternating current, the three-phase electricitys of different phases generated by the electromagnetic induction are mixed and mutually cancel each other. . Therefore, the flow of an excessive induced current to the second shield member 2 is prevented.
　また、第一シールド部材１各々は、比較的細く軽量であり、目の粗い導電性部材である第二シールド部材２も、比較的軽量である。そのため、重く大きなシールド部材を取り扱わなければならないという不便は生じない。 Further, each of the first shield members 1 is relatively thin and light, and the second shield member 2 which is a coarse conductive member is also relatively light. Therefore, the inconvenience of having to handle a heavy and large shield member does not occur.
　以上のことから、ワイヤハーネス１０が採用されれば、対称三相交流の電気を伝導する電力ケーブル９において生じるノイズ電磁波を効果的に遮蔽し、さらに、重く大きなシールド部材を採用することなくシールド部材に過大な誘導電流が流れることを防止することが可能となる。 From the above, if the wire harness 10 is adopted, noise electromagnetic waves generated in the power cable 9 for conducting symmetrical three-phase alternating current are effectively shielded, and furthermore, a shield member without adopting a heavy and large shield member It is possible to prevent an excessive induced current from flowing in the
　また、ワイヤハーネス１０において、３つの第一シールド部材１とそれらの周囲を囲む第二シールド部材２とは、挟持部材３によって確実に接触する状態に保持される。これにより、第一シールド部材１と第二シールド部材２との接触不良が回避される。また、各シールド部材１，２がそれらの端部から筒状の部材に通される場合とは異なり、挟持部材３は、第一シールド部材１及び第二シールド部材２の中間部位に容易に取り付け可能である。 Further, in the wire harness 10, the three first shield members 1 and the second shield members 2 surrounding the peripheries of the three first shield members 1 are held in a state of being reliably in contact with each other by the sandwiching member 3. Thereby, the contact failure of the 1st shield member 1 and the 2nd shield member 2 is avoided. Also, unlike in the case where the respective shield members 1 and 2 are passed through the cylindrical members from their end portions, the holding member 3 is easily attached to the intermediate portion of the first shield member 1 and the second shield member 2 It is possible.
　＜第２実施形態＞
　次に、図６を参照しつつ、本発明の第２実施形態に係るワイヤハーネス１０Ａ及びそれが備える挟持部材３Ａについて説明する。なお、図６は、ワイヤハーネス１０Ａにおける挟持部材３Ａの部分の分解斜視図である。図６において、図１～５に示される構成要素と同じ構成要素は、同じ参照符号が付されている。以下、ワイヤハーネス１０Ａにおけるワイヤハーネス１０と異なる点についてのみ説明する。 Second Embodiment
Next, with reference to FIG. 6, a wire harness 10A according to a second embodiment of the present invention and a holding member 3A provided therewith will be described. 6 is an exploded perspective view of a portion of the holding member 3A in the wire harness 10A. In FIG. 6, the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals. Hereinafter, only differences from the wire harness 10 in the wire harness 10A will be described.
　ワイヤハーネス１０Ａは、ワイヤハーネス１０と同様に、３本の電力ケーブル９と、各電力ケーブル９の周囲を個別に囲む３つの第一シールド部材１と、３つの第一シールド部材１を一括して囲む第二シールド部材２と、１つ以上の挟持部材３Ａと、２つのブラケット部材４とを備えている。 Similar to the wire harness 10, the wire harness 10A collectively includes three power cables 9, three first shield members 1 individually surrounding the periphery of each power cable 9, and three first shield members 1 A second shield member 2 which surrounds, one or more holding members 3A, and two bracket members 4 are provided.
　挟持部材３Ａは、ワイヤハーネス１０の挟持部材３と比較して、留め具６が追加された構成を有している。留め具６は、車両のボディパネルなどの板状の支持体の貫通孔の縁部に留められる周知の用具である。留め具６は、挟持部材３に対して一体に連結された非導電性の材料で構成されている。 The holding member 3 </ b> A has a configuration in which the fastener 6 is added as compared to the holding member 3 of the wire harness 10. The fastener 6 is a known tool that is fastened to the edge of a through hole of a plate-like support such as a vehicle body panel. The fastener 6 is made of a nonconductive material integrally connected to the holding member 3.
　留め具６は、例えば合成樹脂の成形部材である。この場合、留め具６は、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリ塩化ビニル（ＰＶＣ）、ポリエチレンテレフタラート（ＰＥＴ）、又はポリアミド（ＰＡ）などの材料により構成されている。 The fastener 6 is, for example, a molded member of synthetic resin. In this case, the fastener 6 is made of a material such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), or polyamide (PA).
　留め具６は、板材の貫通孔である取付孔に挿入される挿入部６１と、挟持部材３Ａの本体部が固定されたフランジ部６２とを有している。留め具６は、挿入部６１とフランジ部６２とにより、取付孔の縁部を挟持する。 The fastener 6 has an insertion portion 61 inserted into a mounting hole which is a through hole of a plate material, and a flange portion 62 to which the main body portion of the holding member 3A is fixed. The fastener 6 clamps the edge of the mounting hole by the insertion portion 61 and the flange portion 62.
　フランジ部６２における一方の面に第一挟持部材３ｘ及び第二挟持部材３ｙの一方が固定され、他方の面に挿入部６１が立設されている。フランジ部６２は、取付孔を塞ぐように、取付孔の面積よりも大きな面積の皿状に形成されている。 One of the first holding member 3x and the second holding member 3y is fixed to one surface of the flange portion 62, and the insertion portion 61 is provided upright on the other surface. The flange portion 62 is formed in a dish shape having a larger area than the area of the mounting hole so as to close the mounting hole.
　挿入部６１は、取付孔に挿入される際に、両側に張り出した部分が取付孔の縁部に接して押圧され、取付孔の幅まで収縮する。挿入部６１が取付孔の内側へさらに押し込められると、両側に張り出した部分の形状は、取付孔の縁部の裏側において、取付孔の幅よりも大きな幅になるまで復帰する。その結果、挿入部６１における両側に張り出した部分とフランジ部６２とが、取付孔の縁部を表裏両側から挟み込む。その結果、留め具６が板材の取付孔の部分に固定される。 When the insertion portion 61 is inserted into the mounting hole, the portions protruding on both sides are pressed in contact with the edge of the mounting hole and contract to the width of the mounting hole. When the insertion portion 61 is further pressed into the mounting hole, the shape of the portion projecting on both sides returns to a width larger than the width of the mounting hole on the back side of the edge of the mounting hole. As a result, the portions of the insertion portion 61 protruding to both sides and the flange portion 62 sandwich the edge of the mounting hole from both the front and back sides. As a result, the fasteners 6 are fixed to the mounting holes of the plate.
　ワイヤハーネス１０Ａは、挟持部材３Ａに連結された非導電性の留め具６を備える。そのため、ワイヤハーネス１０Ａを車両に敷設する工程において、ワイヤハーネス１０Ａの中間部位を車両のボディなどの支持体に固定する作業が容易となる。 The wire harness 10A includes a nonconductive fastener 6 connected to the clamping member 3A. Therefore, in the process of laying the wire harness 10A in the vehicle, the work of fixing the intermediate portion of the wire harness 10A to a support such as the body of the vehicle becomes easy.
　＜その他＞
　ワイヤハーネス１０において、挟持部材３は、ネジ５１及びナット５２によって連結される第一挟持部材３ｘ及び第二挟持部材３ｙにより構成されている。しかしながら、第一挟持部材３ｘ及び第二挟持部材３ｙが、ネジ５１などの連結具を用いることなく連結可能な構造を有することも考えられる。例えば、第一挟持部材３ｘ及び第二挟持部材３ｙが、溶着又は係り留めの機構などによって連結されることも考えられる。 <Others>
In the wire harness 10, the holding member 3 is configured by a first holding member 3x and a second holding member 3y connected by the screw 51 and the nut 52. However, it is also conceivable that the first holding member 3x and the second holding member 3y have a structure that can be connected without using a connector such as the screw 51. For example, it is also conceivable that the first holding member 3x and the second holding member 3y are connected by a welding or locking mechanism or the like.
　また、第一挟持部材３ｘ及び第二挟持部材３ｙが、それぞれの一方の端部において連なった構造を有することによって一体に形成されていることも考えられる。 Further, it is also conceivable that the first holding member 3x and the second holding member 3y are integrally formed by having a structure in which they are connected at one end of each.
　また、３つの第一シールド部材１が、横並びに配列される、即ち、二次元に配列されるのではなく、三次元に配列されることも考えられる。例えば、３つの第一シールド部材１が、それらの長手方向から見て正三角形の頂点をなす位置において並列に配列されることも考えられる。 It is also conceivable that the three first shield members 1 are arranged side by side, that is, arranged in three dimensions rather than arranged in two dimensions. For example, it is also conceivable that the three first shield members 1 are arranged in parallel at the position at the apex of an equilateral triangle when viewed from their longitudinal direction.
　１　第一シールド部材
　２　第二シールド部材
　３，３Ａ　挟持部材
　４　ブラケット部材
　６　留め具
　７　筐体
　８　端子金具
　９　電力ケーブル
　１０，１０Ａ　ワイヤハーネス
　２１　被接地部
　３１　把持部材の溝部
　３２　把持部材のネジ孔
　４１　ブラケット部材の挟持部
　４２　ブラケット部材のフランジ部
　５，５１　ネジ
　５２　ナット
　６１　留め具の挿入部
　６２　留め具のフランジ部
　７０　基準電位体
　９１　芯線
　９２　絶縁被覆
　４１１　ブラケット部材の溝部
　４１２　ブラケット部材のネジ孔
　３ｘ　第一挟持部材
　３ｙ　第二挟持部材
　４ｘ　第一ブラケット部材
　４ｙ　第二ブラケット部材 DESCRIPTION OF SYMBOLS 1 1st shield member 2 2nd shield member 3, 3A pinching member 4 bracket member 6 fastener 7 housing 8 terminal bracket 9 power cable 10, 10A wire harness 21 grounded portion 31 groove portion of grip member 32 screw hole of grip member DESCRIPTION OF SYMBOLS 41 Clamping part of bracket member 42 Flange part of bracket member 5, 51 Screw 52 Nut 61 Insertion part of fastener 62 Flange portion of fastener 70 Reference potential body 91 Core wire 92 Insulating coat 411 Groove part of bracket member 412 Screw hole of bracket member 3x first holding member 3y second holding member 4x first bracket member 4y second bracket member

Claims (3)

  1. 　対称三相交流の電気を伝導する３本の電力ケーブルと、
    　間隔を空けて並列に配列され、３本の前記電力ケーブル各々の周囲を個別に囲む導電性の３つの第一シールド部材と、
    　前記第一シールド部材よりも目の粗い導電性部材であり、３つの前記第一シールド部材に接触した状態で３つの前記第一シールド部材の周囲を一括して囲む第二シールド部材と、を備えるワイヤハーネス。     Three power cables that conduct symmetrical three-phase alternating current electricity,
    Three conductive first shield members arranged in parallel spaced apart and individually surrounding the periphery of each of the three power cables;
    A conductive member that is coarser than the first shield member, and includes a second shield member that collectively surrounds the three first shield members in a state of being in contact with the three first shield members. Wire harness.
  2. 　請求項１に記載のワイヤハーネスであって、
    　３つの前記第一シールド部材及び柔軟性を有する前記第二シールド部材を一括して挟持し、３つの前記第一シールド部材を並列に配列された状態に保持するとともに前記第二シールド部材を３つの前記第一シールド部材に接触する状態に保持する挟持部材をさらに備える、ワイヤハーネス。     A wire harness according to claim 1, wherein
    The three first shield members and the second shield member having flexibility are held together, and the three first shield members are held in parallel, and the second shield members are three in number. The wire harness further provided with the clamping member hold | maintained in the state which contacts the said 1st shield member.
  3. 　請求項２に記載のワイヤハーネスであって、
    　前記挟持部材に連結されており、板状の支持体の貫通孔の縁部に留められる非導電性の留め具をさらに備える、ワイヤハーネス。     The wire harness according to claim 2, wherein
    The wire harness further provided with the nonelectroconductive fastener connected to the said clamping member and being fastened to the edge of the through-hole of a plate-shaped support body.
PCT/JP2013/062579 2012-05-15 2013-04-30 Wire harness WO2013172197A1 (en)

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JP6394777B2 (en) * 2017-12-13 2018-09-26 株式会社オートネットワーク技術研究所 Electromagnetic shield member, wire harness, and method of manufacturing electromagnetic shield member
JP6835024B2 (en) * 2018-03-27 2021-02-24 住友電装株式会社 Wire harness
JP6841258B2 (en) * 2018-03-27 2021-03-10 住友電装株式会社 Wire harness
JP6841257B2 (en) * 2018-03-27 2021-03-10 住友電装株式会社 Wire harness
JP6835025B2 (en) * 2018-03-27 2021-02-24 住友電装株式会社 Wire harness
JP6928855B2 (en) * 2019-03-18 2021-09-01 古河電気工業株式会社 Wire Harness
JP7159933B2 (en) * 2019-03-20 2022-10-25 住友電装株式会社 wire harness

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009135240A (en) * 2007-11-29 2009-06-18 Furukawa Electric Co Ltd:The Shield structure of electric wire
JP2011178324A (en) * 2010-03-02 2011-09-15 Sumitomo Wiring Syst Ltd Wiring structure of wire harness
JP2011233404A (en) * 2010-04-28 2011-11-17 Auto Network Gijutsu Kenkyusho:Kk Shield conductor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009135240A (en) * 2007-11-29 2009-06-18 Furukawa Electric Co Ltd:The Shield structure of electric wire
JP2011178324A (en) * 2010-03-02 2011-09-15 Sumitomo Wiring Syst Ltd Wiring structure of wire harness
JP2011233404A (en) * 2010-04-28 2011-11-17 Auto Network Gijutsu Kenkyusho:Kk Shield conductor

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