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WO2018180603A1 - Faisceau de câbles - Google Patents

Faisceau de câbles Download PDF

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Publication number
WO2018180603A1
WO2018180603A1 PCT/JP2018/010491 JP2018010491W WO2018180603A1 WO 2018180603 A1 WO2018180603 A1 WO 2018180603A1 JP 2018010491 W JP2018010491 W JP 2018010491W WO 2018180603 A1 WO2018180603 A1 WO 2018180603A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
outer conductor
wire harness
center
outside
Prior art date
Application number
PCT/JP2018/010491
Other languages
English (en)
Japanese (ja)
Inventor
武史 清水
裕隆 馬場
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 WO2018180603A1 publication Critical patent/WO2018180603A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/04—Concentric cables

Definitions

  • the present invention relates to a wire harness.
  • a vehicle such as a hybrid vehicle or an electric vehicle includes a motor that is a power source for driving the vehicle, an inverter connected to the motor, and a high-voltage battery that supplies power to the inverter.
  • the inverter and the high-voltage battery are positive and negative. Are connected to each other by a wire harness including the two high-voltage conductors (see, for example, Patent Documents 1 and 2).
  • a central conductor that works as one of a positive pole conductor and a negative pole conductor, and a positive pole conductor and a negative pole conductor provided outside the center conductor in a state insulated from the central conductor.
  • a cylindrical outer conductor serving as the other. That is, the plus pole conductor and the minus pole conductor are arranged coaxially (concentrically). Space saving is achieved by such a configuration.
  • a high-voltage conductor and a low-voltage conductor are arranged coaxially to save space.
  • a wire harness that solves the above problems, a central conductor located in the center, an outer conductor that is located outside the central conductor, coaxially with the central conductor, and insulated from the central conductor; A cylindrical protection member that is at least outside the central conductor and is coaxial with the central conductor and made of insulating reinforcing fibers.
  • the cylindrical protective member made of insulating reinforcing fibers is provided at least outside the central conductor, so that the impact resistance is improved, and as a result, between the central conductor and the outer conductor. Short circuit, that is, short circuit between conductors can be suppressed.
  • the protective member is provided outside the outer conductor. According to this configuration, the protective member is provided outside the outer conductor, thereby preventing the outer conductor from being exposed to the outside and preventing the outer conductor from being damaged.
  • the outer conductor is a braided member formed by braiding conductive wires, and the outer conductor is inserted through the gap between the strands constituting the outer conductor. It is preferable that the conductor and the central conductor are branched.
  • the center conductor and the outer conductor can be branched by inserting the center conductor through the gap between the strands of the outer conductor made of the braided member (that is, leading out through the gap).
  • the outer conductor is a braided member formed by braiding conductive wires, and the outer peripheral portion on the end side in the longitudinal direction of the outer conductor is insulated with a hard pipe interposed therebetween. It is preferable that it is covered with a covering material.
  • the outer peripheral portion of the outer conductor on the side in the longitudinal direction is covered with the insulating covering material with the hard pipe interposed.
  • the outer conductor made of a braided member has flexibility, it is easy to be deformed when other members are fitted from the outside, and it is difficult to realize a waterproof structure by molding a connector part, a rubber tube, or the like.
  • a predetermined outer shape can be maintained by the hard pipe, in other words, deformation of the outer conductor can be suppressed. Therefore, it is possible to achieve a waterproof structure by molding the connector part, rubber tube, or the like.
  • the wire harness preferably has an electromagnetic shield member that is located on the same axis as the center conductor and is provided outside the center conductor and the outer conductor, and is formed of a tubular braided member.
  • the wire harness is provided coaxially with the center conductor, provided outside the center conductor and the outer conductor, and has an electromagnetic shield member made of a tubular braided member.
  • electromagnetic waves generated by energizing the central conductor and the outer conductor can be prevented from leaking to the outside.
  • the electromagnetic shield member is provided as described above.
  • electromagnetic shielding is achieved and leakage of electromagnetic waves that cause noise to the outside can be suppressed.
  • FIG. 1 is a schematic configuration diagram of a vehicle according to an embodiment.
  • FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. Explanatory drawing for demonstrating the edge part process structure of the coaxial wire of the form. Explanatory drawing for demonstrating the edge part process structure of the coaxial wire of the form.
  • a vehicle V shown in FIG. 1 includes a high voltage battery 11 and an inverter 12 that are electrically connected by a wire harness 10.
  • an inverter 12 is provided at the front of the vehicle V, and a high voltage battery 11 is provided at the rear of the vehicle V.
  • the wire harness 10 is routed so as to pass under the floor of the vehicle.
  • the inverter 12 is connected to a wheel driving motor (not shown) serving as a power source for vehicle travel, generates AC power from DC power of the high voltage battery 11, and supplies the AC power to the motor.
  • the high voltage battery 11 is a battery capable of supplying a voltage of several hundred volts.
  • the wire harness 10 includes a coaxial wire 20 and connector portions C1 and C2 (only C1 is shown in FIG. 2) provided at both ends of the coaxial wire 20.
  • the exterior member protection member
  • a metal or resin pipe material, a corrugated tube, etc. are employable as an exterior member.
  • the coaxial cable 20 includes a center conductor 21, a first coating 22, an outer conductor 23, a second coating 24, an electromagnetic shield member 25, a protection member 26, and a third coating 27.
  • the center conductor 21 is arranged at the approximate center of the coaxial cable 20 and is constituted by a single substantially cylindrical conductor.
  • the center conductor 21 is made of, for example, aluminum or an aluminum alloy.
  • the center conductor 21 of this example is connected to, for example, the plus terminal of the high voltage battery 11 and functions as a plus pole conductor.
  • the outer side of the center conductor 21 is covered with a first coating 22.
  • the first coating 22 is insulative and is in close contact with the outer peripheral surface of the center conductor 21 by, for example, shrinking a heat-shrinkable tube with heat.
  • An outer conductor 23 is provided outside the first coating 22.
  • the outer conductor 23 is a cylindrical braided member that is arranged coaxially with the central conductor 21 and is configured by braiding conductive wires. Since the outer conductor 23 is a tubular braided member, for example, when compressed in the axial direction (longitudinal direction), the diameter increases, and when pulled to both sides in the axial direction, the diameter decreases. Thereby, it is possible to attach the first coating 22 so as to be in close contact with the first coating 22 while facilitating the insertion of the first coating 22.
  • the outer conductor 23 is connected to, for example, the negative terminal of the high voltage battery 11 and functions as a negative electrode conductor. That is, the current passing through the outer conductor 23 is opposite to the current passing through the center conductor 21. As a result, electromagnetic waves (magnetic fields) generated in both conductors 21 and 23 cancel each other.
  • the outside of the outer conductor 23 is covered with the second coating 24.
  • the second coating 24 has insulating properties, and is in close contact with the outer peripheral surface of the outer conductor 23 by, for example, shrinking a heat-shrinkable tube with heat.
  • An electromagnetic shield member 25 is provided outside the second coating 24.
  • the electromagnetic shield member 25 is a cylindrical braided member that is arranged coaxially with the central conductor 21 and is configured by braiding a plurality of metal strands.
  • the electromagnetic shield member 25 is grounded by being electrically connected to the vehicle body, for example. Thereby, the electromagnetic shield member 25 can electromagnetically shield electromagnetic waves (magnetic field) generated by the central conductor 21 and the outer conductor 23 inside thereof.
  • Protective member 26 has a cylindrical shape and covers the outer periphery of electromagnetic shield member 25.
  • the protective member 26 is configured by weaving reinforcing fibers excellent in insulation and shear resistance, and has flexibility.
  • the protection member 26 is provided over substantially the entire length of each of the conductors 21 and 23. Specifically, the protective member 26 is provided over the entire portion of the conductors 21 and 23 other than a predetermined range at both ends exposing the conductors 21 and 23 for connection.
  • reinforcing fibers include, for example, para-aramid fibers, polyarylate fibers, PBO (polyparaphenylene benzobisoxazole) fibers, PET (polyethylene terephthalate) fibers, ultrahigh molecular weight polyethylene fibers, PEI (polyetherimide) fibers, Examples thereof include glass fiber and ceramic fiber. And it is preferable to use one or more of these according to the physical properties required for the protective member 26.
  • the protection member 26 of the present embodiment is composed of one type of para-aramid fiber.
  • the outer side of the protection member 26 is covered with a third coating 27.
  • the third coating 27 has insulating properties, and is in close contact with the outer peripheral surface of the protection member 26 by, for example, shrinking the heat shrinkable tube with heat.
  • the conductors 21 and 23 of the coaxial cable 20 configured as described above are branched on one end side of the conductors 21 and 23. More specifically, since the outer conductor 23 is a tubular braided member formed by braiding conductive wires, the central conductor 21 and the first coating 22 are exposed to the outside from the gaps between the strands.
  • the outer conductor 23 and the center conductor 21 are branched at the branch portion X by being inserted through the outer conductor 23, that is, leading out of the outer conductor 23.
  • the central conductor 21 but also the first covering 22 is branched at the branch portion X by being inserted so as to be exposed to the outside through the gaps between the strands. Insulation with the outer conductor 23 is maintained.
  • the outer conductor 23 is arranged in such a manner that one end exposed from the second coating 24 has a substantially cylindrical shape, and the outer conductor 23 is exposed from the second coating 24 by a fourth coating 28 different from the second coating 24. Of the one end portion, a portion excluding the tip and the branched portion X is covered from the outside.
  • the fourth coating 28 has insulating properties, and is in close contact with the outer peripheral surface of the outer conductor 23 by, for example, shrinking a heat-shrinkable tube with heat.
  • the branch portion X of the outer conductor 23 is covered with a fifth coating 29 provided so as to straddle the second coating 24 and the fourth coating 28.
  • the fifth coating 29 has insulating properties, and is in close contact with the outer peripheral surface of the outer conductor 23 by, for example, shrinking the heat shrinkable tube with heat. As a result, the exposure of the outer conductor 23 at the branch portion X is suppressed.
  • one end portion of the outer conductor 23 is provided with a hard pipe 30 between the outer conductor 23 and the fourth coating 28 to insert the outer conductor 23.
  • the hard pipe 30 has a cylindrical shape with both ends opened, and is more rigid than the outer conductor 23 made of a plurality of strands.
  • substantially half of the hard pipe 30 is covered with the fourth coating 28, and the remaining substantially half is exposed from the fourth coating 28.
  • a predetermined outer shape can be maintained by the hard pipe 30, in other words, deformation of the outer conductor 23 can be suppressed. Therefore, for example, a waterproof structure using a rubber tube G or the like can be achieved between the connector part C1 and the connector part C1.
  • illustration of the hard pipe 30 is abbreviate
  • one end of each of the conductors 21 and 23 is connected to the inverter 12 via a connector portion C1.
  • the other end portions of the conductors 21 and 23 are branched in the same manner as the one end portions of the conductors 21 and 23. That is, most of the conductors 21 and 23 are arranged coaxially with each other, including the middle part thereof, but are separated from each other without being arranged coaxially with each other. Since the other end portions of the conductors 21 and 23 have the same configuration as the one end portion of the same conductors 21 and 23, detailed description thereof is omitted.
  • the other end portions of the conductors 21 and 23 are connected to the high voltage battery 11 via the connector portion C2.
  • the coaxial cable 20 of the wire harness 10 of this embodiment has a structure in which a plurality of conductors 21 and 23 and a plurality of coatings 22 and 24 are laminated on the same axis. Further, the coaxial cable 20 includes a cylindrical protective member 26 provided on the outer side (outer peripheral side) than the conductors 21 and 23. The conductors 21 and 23 are collectively covered with a protective member 26 having excellent impact resistance (particularly shear resistance) knitted from reinforcing fibers made of para-aramid fibers. For this reason, even when there is an impact at the time of a vehicle collision, it is possible to prevent the conductors 21 and 23 from directly contacting each other or from being short-circuited via other components. In addition, since the protective member 26 has insulating properties, the conductors 21 and 23 are prevented from conducting through the protective member 26.
  • the center conductor 21 and the outer conductor 23 can be branched by inserting the center conductor 21 through the gap between the strands of the outer conductor 23 made of a braided member (that is, leading out through the gap).
  • the outer conductor 23 made of a braided member has flexibility, it can be easily deformed when other members are fitted from the outside, and a waterproof structure can be realized by molding the connector portion, a rubber tube, or the like. difficult.
  • the outer peripheral portion of the outer conductor 23 on the end side in the longitudinal direction is covered with the fourth coating 28 having insulation properties with the hard pipe 30 interposed.
  • the wire harness 10 is provided coaxially with the center conductor 21 and provided outside the center conductor 21 and the outer conductor 23, and has an electromagnetic shield member 25 made of a grounded tubular braided member. Thereby, it is possible to suppress leakage of electromagnetic waves generated by energizing the central conductor 21 and the outer conductor 23 to the outside.
  • an electromagnetic shield member 25 made of a grounded tubular braided member.
  • the protective member 26 is provided outside the center conductor 21, the outer conductor 23, and the electromagnetic shield member 25, but this is not a limitation.
  • a configuration in which the protective member 26 is provided inside the electromagnetic shield member 25 and outside the center conductor 21 and the outer conductor 23 may be employed. Further, a configuration in which the protective member 26 is provided inside the electromagnetic shield member 25 and the outer conductor 23 and outside the center conductor 21 may be adopted.
  • the protective member 26 at least on the outer side of the central conductor 21, the same effect as in the above embodiment can be obtained.
  • the center conductor 21 and the one outer conductor 23 are provided.
  • the present invention is not limited to this. It is good also as a structure which arrange
  • FIG. As an example, for example, a high voltage circuit is formed by the center conductor 21 and the outer conductor 23 on the outer side thereof, and another outer conductor is provided on the outer side to form a low voltage circuit having a lower voltage than the high voltage circuit. Conceivable. In this case, by interposing the electromagnetic shield member 25 between the high-voltage circuit and the low-voltage circuit, the electromagnetic shield is achieved and the influence on the low-voltage circuit can be suppressed.
  • the coaxial cable 20 constituting the wire harness 10 connects the high voltage battery 11 and the inverter 12 and is used for a DC circuit, but is not limited thereto.
  • a coaxial cable may be used to electrically connect the inverter 12 and the wheel driving motor. That is, the coaxial cable 20 may be used as a part of the AC circuit.
  • the coaxial cable further includes another outer conductor in addition to the center conductor 21 and the outer conductor 23. The other outer conductors are arranged outside the center conductor 21 and the outer conductor 23, and each conductor is insulated.
  • center conductor 21 was comprised with the cylindrical one conductor, you may change into a strand wire, a braided member, etc. -You may combine the said embodiment and each modification suitably.

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  • Insulated Conductors (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

Un fil électrique coaxial (20) pour ce faisceau de câbles comprend: un conducteur central (21) situé au centre; un conducteur externe (23) disposé à l'extérieur et coaxialement au conducteur central (21) et isolé du conducteur central (21); et un élément de protection cylindrique (26) disposé à l'extérieur et coaxialement au conducteur central (21) et constitué de fibres de renforcement isolantes.
PCT/JP2018/010491 2017-03-27 2018-03-16 Faisceau de câbles WO2018180603A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017061180A JP2018163840A (ja) 2017-03-27 2017-03-27 ワイヤハーネス
JP2017-061180 2017-03-27

Publications (1)

Publication Number Publication Date
WO2018180603A1 true WO2018180603A1 (fr) 2018-10-04

Family

ID=63675772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/010491 WO2018180603A1 (fr) 2017-03-27 2018-03-16 Faisceau de câbles

Country Status (2)

Country Link
JP (1) JP2018163840A (fr)
WO (1) WO2018180603A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55175920U (fr) * 1979-06-04 1980-12-17
JPS5650489B2 (fr) * 1978-05-16 1981-11-30
JP2015088397A (ja) * 2013-11-01 2015-05-07 株式会社オートネットワーク技術研究所 車両用のワイヤハーネスおよび該ワイヤハーネスの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650489B2 (fr) * 1978-05-16 1981-11-30
JPS55175920U (fr) * 1979-06-04 1980-12-17
JP2015088397A (ja) * 2013-11-01 2015-05-07 株式会社オートネットワーク技術研究所 車両用のワイヤハーネスおよび該ワイヤハーネスの製造方法

Also Published As

Publication number Publication date
JP2018163840A (ja) 2018-10-18

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