JP6839396B2 - Wire harness - Google Patents

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JP6839396B2
JP6839396B2 JP2019202802A JP2019202802A JP6839396B2 JP 6839396 B2 JP6839396 B2 JP 6839396B2 JP 2019202802 A JP2019202802 A JP 2019202802A JP 2019202802 A JP2019202802 A JP 2019202802A JP 6839396 B2 JP6839396 B2 JP 6839396B2
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electric wire
magnetic core
wall portion
wire harness
electromagnetic wave
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JP2020053392A (en
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太一 岡
太一 岡
敬浩 二ツ森
敬浩 二ツ森
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Hitachi Metals Ltd
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Description

本発明は、ワイヤハーネスに関する。 The present invention relates to a wire harness.

従来、例えば電動モータを駆動源とする車両に設けられ、インバータと電動モータとを接続するワイヤハーネスが知られている。この種のワイヤハーネスとして、ワイヤハーネスの電線から放射される電磁ノイズを低減するための編組シールドが設けられたものが知られている。 Conventionally, for example, a wire harness provided in a vehicle using an electric motor as a drive source and connecting an inverter and an electric motor is known. As a wire harness of this type, a wire harness provided with a braided shield for reducing electromagnetic noise radiated from the electric wire of the wire harness is known.

特許文献1では、編組シールドに加えて、磁性体コアを設けることで、当該磁性体コアによりワイヤハーネスから放射される電磁ノイズをより低減したワイヤハーネスが開示されている。 Patent Document 1 discloses a wire harness in which a magnetic core is provided in addition to the braided shield to further reduce electromagnetic noise radiated from the wire harness by the magnetic core.

特開2014−130708号公報Japanese Unexamined Patent Publication No. 2014-130708

しかしながら、特許文献1において、磁性体コアとして応力が印加されると磁気特性が変化しやすい材料(例えば、ナノ結晶軟磁性材料等)を用いた場合、ワイヤハーネスを車両内に配策する際、屈曲した電線が磁性体コアに接触し、磁性体コアの磁気特性が変化してしまう場合があるという問題があった。 However, in Patent Document 1, when a material whose magnetic properties are likely to change when stress is applied (for example, a nanocrystal soft magnetic material) is used as the magnetic core, when arranging the wire harness in the vehicle, There is a problem that the bent electric wire may come into contact with the magnetic core and the magnetic characteristics of the magnetic core may change.

そこで、本発明は、電磁ノイズを低減しつつも、磁性体コアとして、たとえ応力が印加されると磁気特性が変化しやすい材料を用いたとしても磁気特性の変化を抑制することが可能なワイヤハーネスを提供することを目的とする。 Therefore, the present invention is a wire capable of suppressing a change in magnetic characteristics even if a material whose magnetic characteristics are likely to change when stress is applied is used as the magnetic core while reducing electromagnetic noise. The purpose is to provide a harness.

本発明は、上記課題を解決することを目的として、複数の電線と、前記複数の電線を一括して覆う環状の内壁部と、前記内壁部の周囲に設けられた環状の磁性体コアと、を備えたワイヤハーネスを提供する。 An object of the present invention is to solve the above-mentioned problems, a plurality of electric wires, an annular inner wall portion that collectively covers the plurality of electric wires, and an annular magnetic core provided around the inner wall portion. Provide a wire harness equipped with.

本発明によれば、電磁ノイズを低減しつつも、磁性体コアとして、たとえ応力が印加されると磁気特性が変化しやすい材料を用いたとしても磁気特性の変化を抑制することが可能なワイヤハーネスを提供できる。 According to the present invention, while reducing electromagnetic noise, a wire capable of suppressing a change in magnetic properties even if a material whose magnetic properties are likely to change when stress is applied is used as the magnetic core. Harness can be provided.

(a)は本発明の一実施の形態に係るワイヤハーネスの外観を示す斜視図であり、(b)は(a)において編組シールドを省略した斜視図である。(A) is a perspective view showing the appearance of the wire harness according to the embodiment of the present invention, and (b) is a perspective view in which the braided shield is omitted in (a). コネクタの斜視図である。It is a perspective view of a connector. 図2のA−A線断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG. ハウジングの分解斜視図である。It is an exploded perspective view of a housing. シール保持部材の斜視図である。It is a perspective view of the seal holding member. (a)は電磁波抑制部材の斜視図であり、(b)は電磁波抑制部材の破断面図である。(A) is a perspective view of the electromagnetic wave suppressing member, and (b) is a fracture surface view of the electromagnetic wave suppressing member. 電磁波抑制部材の分解斜視図である。It is an exploded perspective view of the electromagnetic wave suppression member. 本発明の一変形例に係るワイヤハーネスを示す図であり、(a)は斜視図、(b)はその断面図である。It is a figure which shows the wire harness which concerns on one modification of this invention, (a) is a perspective view, (b) is a sectional view thereof. 本発明の一変形例に係るワイヤハーネスを示す図であり、(a)は斜視図、(b)はその破断面図である。It is a figure which shows the wire harness which concerns on one modification of this invention, (a) is the perspective view, (b) is the fracture surface view. 図9のワイヤハーネスにおいて、移動規制部の固定手段を説明する斜視図である。It is a perspective view explaining the fixing means of the movement regulation part in the wire harness of FIG.

[実施の形態]
以下、本発明の実施の形態を添付図面にしたがって説明する。
[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(ワイヤハーネスの全体構造の説明)
図1(a)は、本実施の形態に係るワイヤハーネスの外観を示す斜視図、図1(b)はその編組シールドを省略した斜視図である。
(Explanation of the overall structure of the wire harness)
FIG. 1 (a) is a perspective view showing the appearance of the wire harness according to the present embodiment, and FIG. 1 (b) is a perspective view in which the braided shield is omitted.

図1(a)および図1(b)に示すように、ワイヤハーネス1は、電線2と、電線2の端部に設けられたコネクタ3と、を備えている。 As shown in FIGS. 1A and 1B, the wire harness 1 includes an electric wire 2 and a connector 3 provided at an end of the electric wire 2.

ワイヤハーネス1は、例えば、電動モータを駆動源とする電気自動車やハイブリッド車等の車両に搭載され、電動モータにインバータから出力されるPWM(Pulse Width Modulation)制御された電流を供給するために用いられる。この電流には、パワートランジスタ等のスイッチング素子のスイッチングによる高周波成分が含まれる。 The wire harness 1 is mounted on a vehicle such as an electric vehicle or a hybrid vehicle using an electric motor as a drive source, and is used to supply a PWM (Pulse Width Modulation) controlled current output from an inverter to the electric motor. Be done. This current includes a high frequency component due to switching of a switching element such as a power transistor.

本実施の形態では、ワイヤハーネス1は、3本の電線2を用い、U相、V相、およびW相の三相交流電流を電動モータに供給するように構成されている。 In the present embodiment, the wire harness 1 is configured to use three electric wires 2 and supply a U-phase, V-phase, and W-phase three-phase alternating current to the electric motor.

各電線2は、電気良導体からなる素線を複数撚り合わせた導体2aと、導体2aの外周に設けられた絶縁性樹脂からなる絶縁体2bと、をそれぞれ備えている。 Each electric wire 2 includes a conductor 2a in which a plurality of strands made of good electric conductors are twisted together, and an insulator 2b made of an insulating resin provided on the outer periphery of the conductor 2a.

各電線2の端部には、接続端子21がそれぞれ接続されている。接続端子21は、導体2aの端部にかしめ固定されるかしめ部21aと、かしめ部21aから延出された板状の接続部21bと、を一体に備えている。接続部21bには、接続部21bを厚さ方向に貫通するボルト固定用の接続穴21cが形成されている。接続端子21は、接続対象となる被取付部材内(例えばインバータ内)の端子台に設けられた対応する機器側接続端子に、接続部21bをボルト固定により固定することで、機器側接続端子に電気的に接続される。 A connection terminal 21 is connected to the end of each electric wire 2. The connection terminal 21 integrally includes a caulking portion 21a that is crimped and fixed to the end portion of the conductor 2a, and a plate-shaped connecting portion 21b that extends from the caulking portion 21a. The connecting portion 21b is formed with a connecting hole 21c for fixing a bolt that penetrates the connecting portion 21b in the thickness direction. The connection terminal 21 becomes a device-side connection terminal by fixing the connection portion 21b to the corresponding device-side connection terminal provided on the terminal block in the mounted member (for example, in the inverter) to be connected by bolting. It is electrically connected.

3本の電線2の周囲には、3本の電線2を一括して覆うように編組シールド4が設けられる。編組シールド4は、例えば銅を錫メッキしてなる複数のシールド素線を編み合わせて形成される。ここでは、6本のシールド素線を1本の素線束とし、この素線束同士をX字状にクロスさせて編み合わせることにより、編組シールド4を形成している。この編組シールド4は、例えば手作業によって編み目の大きさを変えることで、内径を拡大および収縮させることが可能である。 A braided shield 4 is provided around the three electric wires 2 so as to collectively cover the three electric wires 2. The braided shield 4 is formed by knitting a plurality of shield strands made of, for example, tin-plated copper. Here, the six shielded wires are combined into one bundle of wires, and the bundles of wires are crossed in an X shape and knitted to form the braided shield 4. The braided shield 4 can be expanded and contracted in inner diameter by, for example, manually changing the size of the stitches.

編組シールド4の周囲には、本実施の形態に係る電磁波抑制部材8が設けられている。電磁波抑制部材8の詳細については、後述する。 An electromagnetic wave suppressing member 8 according to the present embodiment is provided around the braided shield 4. Details of the electromagnetic wave suppression member 8 will be described later.

図示していないが、編組シールド4の外周(電磁波抑制部材8を設けていない部分)には、電線2の保護用のコルゲートチューブが設けられていてもよい。コルゲートチューブは、樹脂からなる筒状部材であり、大径部と小径部とが交互に形成された蛇腹状となっている。 Although not shown, a corrugated tube for protecting the electric wire 2 may be provided on the outer periphery of the braided shield 4 (a portion where the electromagnetic wave suppressing member 8 is not provided). The corrugated tube is a tubular member made of resin, and has a bellows shape in which large diameter portions and small diameter portions are alternately formed.

(コネクタ3の説明)
図2は、コネクタ3の斜視図であり、図3は、そのA−A線断面図である。図4は、コネクタ3のハウジング5の分解斜視図である。図5は、コネクタ3のシール保持部材72の斜視図である。
(Explanation of connector 3)
FIG. 2 is a perspective view of the connector 3, and FIG. 3 is a cross-sectional view taken along the line AA. FIG. 4 is an exploded perspective view of the housing 5 of the connector 3. FIG. 5 is a perspective view of the seal holding member 72 of the connector 3.

図2および図3に示すように、コネクタ3は、被取付部材(例えばインバータ)に形成された取付孔(不図示)に収容される被収容部材31と、電線2に沿って被収容部材31と並んで配置された電線保持部材32と、を備えている。 As shown in FIGS. 2 and 3, the connector 3 includes a housed member 31 housed in a mounting hole (not shown) formed in a mounted member (for example, an inverter) and a housed member 31 along the electric wire 2. The electric wire holding member 32 arranged side by side with the above is provided.

電線保持部材32は、電線2を保持すると共に、被取付部材(例えばインバータ)に固定するものである。電線保持部材32は、絶縁性樹脂からなるハウジング(電線ホルダ)5と、導電性の金属からなるシールドシェル(シールドケース)6と、を備えている。 The electric wire holding member 32 holds the electric wire 2 and fixes it to the attached member (for example, an inverter). The electric wire holding member 32 includes a housing (electric wire holder) 5 made of an insulating resin and a shield shell (shield case) 6 made of a conductive metal.

図2〜4に示すように、ハウジング5は、電線2を支持する電線支持部52と、電線支持部52を覆う外壁部53と、電線支持部52と外壁部53とを連結する連結部54と、を一体に有している。ハウジング5は、例えば、PBT(ポリブチレンテレフタレート)やPA(ポリアミド)、あるいはPPS(ポリフェニレンサルファイド)等の絶縁性樹脂からなり、例えば射出成形により形成される。 As shown in FIGS. 2 to 4, the housing 5 includes an electric wire support portion 52 that supports the electric wire 2, an outer wall portion 53 that covers the electric wire support portion 52, and a connecting portion 54 that connects the electric wire support portion 52 and the outer wall portion 53. And, in one piece. The housing 5 is made of, for example, an insulating resin such as PBT (polybutylene terephthalate), PA (polyamide), or PPS (polyphenylene sulfide), and is formed by injection molding, for example.

電線支持部52は、電線2が挿通される挿通孔51を有する円筒状に形成され、挿通孔51に挿通された電線2を挟持するように構成されている。ここでは、3本の電線2に対応して、3つの電線支持部52が備えられている。なお、これに限らず、例えば、3つの挿通孔51を有する一体構成の電線支持部を備えるようにしてもよい。3つの電線支持部52は、電線2の長手方向に対して垂直方向に等間隔に整列配置されており、3つの電線2を整列した状態で保持するように構成されている。以下、コネクタ3における電線2の長手方向を長さ方向、電線2の整列方向を幅方向、長さ方向と幅方向に垂直な方向を高さ方向と呼称する。 The electric wire support portion 52 is formed in a cylindrical shape having an insertion hole 51 through which the electric wire 2 is inserted, and is configured to sandwich the electric wire 2 inserted through the insertion hole 51. Here, three electric wire support portions 52 are provided corresponding to the three electric wires 2. In addition, the present invention is not limited to this, and for example, an integrally configured electric wire support portion having three insertion holes 51 may be provided. The three electric wire support portions 52 are arranged and arranged at equal intervals in the direction perpendicular to the longitudinal direction of the electric wire 2, and are configured to hold the three electric wires 2 in an aligned state. Hereinafter, the longitudinal direction of the electric wires 2 in the connector 3 is referred to as a length direction, the alignment direction of the electric wires 2 is referred to as a width direction, and the direction perpendicular to the length direction and the width direction is referred to as a height direction.

外壁部53は、筒状に形成され、各電線支持部52と離間して各電線支持部52を一括して覆うように設けられている。連結部54は、電線支持部52の幅方向の中央部および両側部と外壁部53とをそれぞれ連結するリブ状の連結片54aと、電線2の先端側にて電線支持部52と外壁部53との間を塞ぐように設けられる前壁部54bと、を有している。 The outer wall portion 53 is formed in a tubular shape, and is provided so as to be separated from each electric wire support portion 52 and collectively cover each electric wire support portion 52. The connecting portion 54 includes a rib-shaped connecting piece 54a that connects the central portion and both side portions of the electric wire supporting portion 52 in the width direction and the outer wall portion 53, respectively, and the electric wire supporting portion 52 and the outer wall portion 53 on the tip side of the electric wire 2. It has a front wall portion 54b provided so as to close the space between the two.

本実施の形態では、ハウジング5を高さ方向における中央部で上下に分割し、分割された両ハウジング5を、ランス55を含む固定手段により固定し一体化するように構成されている。 In the present embodiment, the housing 5 is vertically divided at the central portion in the height direction, and both the divided housings 5 are fixed and integrated by a fixing means including a lance 55.

外壁部53の外周には、圧入によりシールドシェル6が設けられる。シールドシェル6は、例えば鉄や黄銅、あるいはアルミニウム等の導電性の金属からなり、ハウジング5の少なくとも一部を収容するように構成されている。外壁部53の外周の電線挿入側の端部には、長さ方向に沿って形成されたリブ状の突起部53aが周方向に離間して複数形成されており、この突起部53aにより、圧入されたシールドシェル6をハウジング5に強固に固定できるように構成されている。 A shield shell 6 is provided on the outer periphery of the outer wall portion 53 by press fitting. The shield shell 6 is made of a conductive metal such as iron, brass, or aluminum, and is configured to accommodate at least a portion of the housing 5. A plurality of rib-shaped protrusions 53a formed along the length direction are formed at the end of the outer peripheral wall portion 53 on the electric wire insertion side, and are press-fitted by the protrusions 53a. The shield shell 6 is configured to be firmly fixed to the housing 5.

シールドシェル6は、ハウジング5の外壁部53の周囲を覆うように設けられた筒状部61と、筒状部61の先端側の端部から外方に突出するように設けられ、被取付部材(例えばインバータ)の筐体に固定される固定部としてのフランジ部62と、を有している。シールドシェル6の外周には、帯状の締付部材64が設けられており、この締付部材64により、編組シールド4がシールドシェル6の外周に固定されると共に、筒状部61が締め付けられハウジング5に固定されている。 The shield shell 6 is provided with a tubular portion 61 provided so as to cover the periphery of the outer wall portion 53 of the housing 5 and a member to be attached so as to project outward from the end portion on the tip end side of the tubular portion 61. It has a flange portion 62 as a fixing portion fixed to the housing of (for example, an inverter). A band-shaped tightening member 64 is provided on the outer circumference of the shield shell 6, and the braided shield 4 is fixed to the outer circumference of the shield shell 6 by the tightening member 64, and the tubular portion 61 is tightened to the housing. It is fixed at 5.

図3および図5に示すように、被収容部材31は、被取付部材(例えばインバータ)に形成された取付孔(不図示)に収容される部材であり、シールドシェル6のフランジ部62よりも先端側に配置されている。 As shown in FIGS. 3 and 5, the housed member 31 is a member housed in a mounting hole (not shown) formed in the mounted member (for example, an inverter), and is more than the flange portion 62 of the shield shell 6. It is located on the tip side.

被収容部材31は、電線2を挿通する3つの挿通孔71を有するシール保持部材72と、シール保持部材72の外周面に保持され、被取付部材の取付孔の内面とシール保持部材72との間をシールする外周シール部材76と、挿通孔71の内周面に保持され、挿通孔71と電線2との間をシールする内周シール部材(ワイヤシール)74と、を備えている。なお、図5では、外周シール部材76と内周シール部材74を省略している。 The accommodating member 31 is held on the outer peripheral surface of the seal holding member 72 and the seal holding member 72 having three insertion holes 71 through which the electric wire 2 is inserted, and the inner surface of the attachment hole of the attached member and the seal holding member 72. It includes an outer peripheral sealing member 76 that seals between the holes, and an inner peripheral sealing member (wire seal) 74 that is held on the inner peripheral surface of the insertion hole 71 and seals between the insertion hole 71 and the electric wire 2. In FIG. 5, the outer peripheral seal member 76 and the inner peripheral seal member 74 are omitted.

シール保持部材72は、例えば、PBT(ポリブチレンテレフタレート)やPA(ポリアミド)、あるいはPPS(ポリフェニレンサルファイド)等の絶縁性樹脂からなる。 The seal holding member 72 is made of, for example, an insulating resin such as PBT (polybutylene terephthalate), PA (polyamide), or PPS (polyphenylene sulfide).

外周シール部材76は、環状に形成され、シール保持部材72の外周に周方向に沿って形成された外周シール部材用溝75に配置されている。外周シール部材76は、シール保持部材72と被取付部材(例えばインバータ)の取付孔の内面との間に介在し、シール保持部材72の外側から被取付部材(例えばインバータ)内に水分が侵入することを抑制する。 The outer peripheral seal member 76 is formed in an annular shape and is arranged in a groove 75 for the outer peripheral seal member formed on the outer periphery of the seal holding member 72 along the circumferential direction. The outer peripheral seal member 76 is interposed between the seal holding member 72 and the inner surface of the mounting hole of the mounted member (for example, an inverter), and moisture enters the mounted member (for example, an inverter) from the outside of the seal holding member 72. Suppress that.

内周シール部材74は、環状に形成され、シール保持部材72における挿通孔71のハウジング5側の端部に周方向に沿って形成された内周シール部材用溝73に配置されている。内周シール部材74は、電線2の絶縁体2bとシール保持部材72との間に介在し、電線2を伝って被取付部材(例えばインバータ)内に水分が侵入することを抑制する。 The inner peripheral seal member 74 is formed in an annular shape, and is arranged in a groove 73 for the inner peripheral seal member formed along the circumferential direction at the end of the insertion hole 71 on the housing 5 side of the seal holding member 72. The inner peripheral seal member 74 is interposed between the insulator 2b of the electric wire 2 and the seal holding member 72, and prevents moisture from entering the attached member (for example, an inverter) through the electric wire 2.

シール保持部材72の基端部には、基端側に突出する係止突起77が一体に形成されている。係止突起77は、直方体形状の頭部77aと、頭部77aとシール保持部材72とを連結し、頭部77aよりも幅および高さが小さい直方体形状(角柱状)に形成された軸部(頚部)77bと、を一体に有している。 A locking projection 77 projecting toward the proximal end is integrally formed at the proximal end of the seal holding member 72. The locking projection 77 connects a rectangular parallelepiped head 77a, the head 77a, and the seal holding member 72, and is a shaft portion formed in a rectangular parallelepiped shape (square columnar shape) having a width and height smaller than that of the head 77a. (Neck) 77b and the like are integrally provided.

ハウジング5の前壁部54bには、係止突起77を係止する係止溝56が形成されている。係止溝56は、係止突起77の頭部77aを収容する頭部77aよりも幅および高さおよび長さが大きい頭部収容部56aと、頭部77aよりも幅および高さが小さく、軸部77bよりも幅および高さ大きく、かつ軸部77bよりも長さが短い軸部収容部56bと、を有し、頭部収容部56aが軸部収容部56bを介して前方に開口するように構成されている。 A locking groove 56 for locking the locking projection 77 is formed on the front wall portion 54b of the housing 5. The locking groove 56 has a head accommodating portion 56a having a width, height and length larger than that of the head 77a accommodating the head 77a of the locking projection 77, and a head accommodating portion 56a having a width and height smaller than that of the head 77a. It has a shaft portion accommodating portion 56b that is larger in width and height than the shaft portion 77b and shorter than the shaft portion 77b, and the head accommodating portion 56a opens forward via the shaft portion accommodating portion 56b. It is configured as follows.

頭部77aを頭部収容部56aに、軸部77bを軸部収容部56bに収容して係止突起77を係止溝56に係止することで、シールドシェル6を被取付部材(例えばインバータ)の筐体に固定する際において、シール保持部材72が電線保持部材32に対して相対移動可能となる。本実施の形態では、シール保持部材72は、ハウジング5に対して、長さ方向、幅方向、および高さ方向に移動可動である。 The shield shell 6 is attached to a member (for example, an inverter) by accommodating the head 77a in the head accommodating portion 56a and the shaft portion 77b in the shaft accommodating portion 56b and locking the locking projection 77 in the locking groove 56. ), The seal holding member 72 can move relative to the electric wire holding member 32. In the present embodiment, the seal holding member 72 is movable with respect to the housing 5 in the length direction, the width direction, and the height direction.

このように構成することで、電線2の屈曲やシールドシェル6をボルト固定する際のトルクにより電線保持部材32(シールドシェル6やハウジング5)が回転あるいは傾斜しても、当該回転あるいは傾斜にシール保持部材72が追従しにくくなり、例えば外周シール部材76の一部のみが過度に潰れるなどして防水機能が失われることを抑制可能になる。 With this configuration, even if the wire holding member 32 (shield shell 6 or housing 5) rotates or tilts due to the bending of the wire 2 or the torque when fixing the shield shell 6 with bolts, the rotation or tilt is sealed. It becomes difficult for the holding member 72 to follow, and it is possible to prevent the waterproof function from being lost due to, for example, only a part of the outer peripheral sealing member 76 being excessively crushed.

なお、ここでは、係止突起77の頭部77aと軸部77bとを直方体形状(あるいは角柱状)に形成する場合を説明したが、頭部77aと軸部77bの形状はこれに限定されず、例えば、頭部77aと軸部77bを円柱状としてもよいし、頭部77aを球状としてもよい。 Although the case where the head portion 77a and the shaft portion 77b of the locking projection 77 are formed in a rectangular parallelepiped shape (or a prismatic shape) is described here, the shapes of the head portion 77a and the shaft portion 77b are not limited to this. For example, the head 77a and the shaft 77b may be cylindrical, or the head 77a may be spherical.

また、シール保持部材72と電線保持部材32(ハウジング5)とを相対移動可能に連結する手段は、係止突起77と係止溝56に限定されない。例えば、シール保持部材72とハウジング5の一方から弾性を有するフック(ランス)を延出すると共に、シール保持部材72とハウジング5の他方にフックを係止する係止部を設け、フックを係止部に係止してシール保持部材72とハウジング5とを連結した状態においても、フックの弾性により、シール保持部材72と電線保持部材32(ハウジング5)とを相対移動可能に構成することも可能である。 Further, the means for connecting the seal holding member 72 and the electric wire holding member 32 (housing 5) so as to be relatively movable is not limited to the locking projection 77 and the locking groove 56. For example, an elastic hook (lance) is extended from one of the seal holding member 72 and the housing 5, and a locking portion for locking the hook is provided on the other of the seal holding member 72 and the housing 5 to lock the hook. Even when the seal holding member 72 and the housing 5 are connected to each other by being locked to the portion, the seal holding member 72 and the electric wire holding member 32 (housing 5) can be relatively movable due to the elasticity of the hook. Is.

(電磁波抑制部材8の説明)
図6(a)は電磁波抑制部材8の斜視図であり、図6(b)はその破断面図である。
(Explanation of Electromagnetic Wave Suppressing Member 8)
FIG. 6A is a perspective view of the electromagnetic wave suppressing member 8, and FIG. 6B is a fracture surface view thereof.

図1および図6に示すように、電磁波抑制部材8は、電線2の外周を覆うように設けられ、電線2よりも硬い内壁部81aを有する規制部材81と、内壁部81aの周囲に設けられたナノ結晶軟磁性材料からなる環状の磁性体コア82と、を備えている。なお、ここで言う「硬い」とは、同じ長さ(例えば単位長さ)のものに対して両端を持って屈曲させようとしたときに、より曲がりにくいことを意味している。 As shown in FIGS. 1 and 6, the electromagnetic wave suppression member 8 is provided so as to cover the outer periphery of the electric wire 2, and is provided around the regulation member 81 having an inner wall portion 81a harder than the electric wire 2 and the inner wall portion 81a. It includes an annular magnetic core 82 made of a nanocrystalline soft magnetic material. The term "hard" as used herein means that it is more difficult to bend when trying to bend an object having the same length (for example, a unit length) by holding both ends.

本実施の形態では、磁性体コア82は、ナノ結晶軟磁性材料から構成される。ナノ結晶軟磁性材料とは、アモルファス合金を結晶化することにより、強磁性相のナノ結晶粒を残存するアモルファス相に分散させた材料である。なお、磁性体コア82としては、ソフトフェライト等の軟磁性材料を用いることも可能である。 In this embodiment, the magnetic core 82 is made of a nanocrystalline soft magnetic material. The nanocrystal soft magnetic material is a material in which nanocrystal grains of a ferromagnetic phase are dispersed in the remaining amorphous phase by crystallizing an amorphous alloy. As the magnetic core 82, a soft magnetic material such as soft ferrite can also be used.

ここでは、ナノ結晶軟磁性材料として、ファインメット(登録商標)を用いた。ファインメット(登録商標)からなる磁性体コア82は、例えば、Fe(−Si)−Bを基本成分としこれに微量のCuとNb,Ta,Mo,Zr等の元素を添加した合金溶湯を単ロール法等の超急冷法により一旦厚さ約20μmのアモルファス金属薄帯とし、これを磁心形状(ここでは3本の電線2を一括して覆う環状)に成形した後、結晶化温度以上で熱処理し結晶化させることにより形成される。磁性体コア82における結晶粒径は約10nmである。なお、磁性体コア82として、ファインメット(登録商標)以外のナノ結晶軟磁性材料、例えばNANOMET(登録商標)を用いてもよい。 Here, Finemet (registered trademark) was used as the nanocrystal soft magnetic material. The magnetic core 82 made of Finemet (registered trademark) is made of, for example, a molten alloy containing Fe (-Si) -B as a basic component and a trace amount of Cu and elements such as Nb, Ta, Mo, and Zr added thereto. An amorphous metal strip with a thickness of about 20 μm is once formed by an ultra-quenching method such as a roll method, formed into a magnetic core shape (here, an annular shape covering three electric wires 2 collectively), and then heat-treated at a crystallization temperature or higher. It is formed by crystallization. The crystal grain size of the magnetic core 82 is about 10 nm. As the magnetic core 82, a nanocrystal soft magnetic material other than Finemet (registered trademark), for example, NANOMET (registered trademark) may be used.

ナノ結晶軟磁性材料は、従来用いられていたソフトフェライト等の軟磁性材料と比較して、高い飽和磁束密度と優れた軟磁気特性(高透磁率・低磁心損失特性)を有している。よって、磁性体コア82としてナノ結晶軟磁性材料を用いることで、磁性体コア82の小型化が可能になる。その結果、電磁波抑制部材8の大型化および質量の増大を抑制し、電磁波抑制部材8を取り付けた場合であってもワイヤハーネス1全体をコンパクトかつ軽量に維持することが可能になる。磁性体コア82の大きさ(厚さおよび長さ)は、使用するナノ結晶軟磁性材料の特性等を考慮し、所望の特性が得られるよう適宜設定すればよい。 The nanocrystal soft magnetic material has a high saturation magnetic flux density and excellent soft magnetic characteristics (high magnetic permeability and low magnetic core loss characteristics) as compared with the conventionally used soft magnetic materials such as soft ferrite. Therefore, by using the nanocrystal soft magnetic material as the magnetic core 82, the magnetic core 82 can be miniaturized. As a result, it is possible to suppress the increase in size and mass of the electromagnetic wave suppression member 8 and to maintain the entire wire harness 1 in a compact and lightweight manner even when the electromagnetic wave suppression member 8 is attached. The size (thickness and length) of the magnetic core 82 may be appropriately set so as to obtain desired characteristics in consideration of the characteristics of the nanocrystalline soft magnetic material to be used.

また、ナノ結晶軟磁性材料は、従来用いられていたソフトフェライト等の軟磁性材料と比較して、AMラジオ等のラジオに使用される周波数帯の電磁波ノイズを抑制可能であるという特性もある。車両では、道路情報等をAMラジオにより提供しているため、特にワイヤハーネス1を車両に適用する場合には、ラジオに使用される周波数帯域で電磁波ノイズを抑制できる効果は大きいといえる。 In addition, the nanocrystal soft magnetic material has a characteristic that it can suppress electromagnetic noise in the frequency band used for radios such as AM radios, as compared with the soft magnetic materials such as soft ferrite that have been conventionally used. Since the vehicle provides road information and the like by the AM radio, it can be said that the effect of suppressing electromagnetic noise in the frequency band used for the radio is great, especially when the wire harness 1 is applied to the vehicle.

ただし、ナノ結晶軟磁性材料は外部から応力が加わると磁気特性が変化しやすいという特性を有している。そのため、ナノ結晶軟磁性材料からなる磁性体コア82を用いる場合、磁性体コア82に外部から応力が加わらないような構成とする必要が生じる。 However, the nanocrystal soft magnetic material has a characteristic that the magnetic characteristics are easily changed when stress is applied from the outside. Therefore, when the magnetic core 82 made of the nanocrystalline soft magnetic material is used, it is necessary to configure the magnetic core 82 so that no external stress is applied to the magnetic core 82.

そこで、本実施の形態では、電線2よりも硬い内壁部81aを設け、その内壁部81aの周囲に、ナノ結晶軟磁性材料からなる環状の磁性体コア82を設けるように電磁波抑制部材8を構成した。これにより、電線2を屈曲させた際等にも磁性体コア82に応力が付与されなくなり、磁性体コア82の磁気特性の変化を抑制することが可能になる。つまり、規制部材81(内壁部81a)は、電線2の屈曲時に電線2の動きを規制して、電線2が磁性体コア82に干渉してしまうことを抑制するものであり、磁性体コア82を保護する役割を果たす。 Therefore, in the present embodiment, the electromagnetic wave suppression member 8 is configured so as to provide an inner wall portion 81a harder than the electric wire 2 and to provide an annular magnetic core 82 made of a nanocrystalline soft magnetic material around the inner wall portion 81a. did. As a result, stress is not applied to the magnetic core 82 even when the electric wire 2 is bent, and it is possible to suppress changes in the magnetic characteristics of the magnetic core 82. That is, the regulating member 81 (inner wall portion 81a) regulates the movement of the electric wire 2 when the electric wire 2 is bent to prevent the electric wire 2 from interfering with the magnetic core 82, and the magnetic core 82. Plays a role in protecting.

本実施の形態では、規制部材81の全体を電線2よりも硬い材料から構成したが、これに限らず、少なくとも、内壁部81aが電線2よりも硬い材料から構成されていればよい。規制部材81は、例えば、PBT(ポリブチレンテレフタレート)やPA(ポリアミド)、あるいはPPS(ポリフェニレンサルファイド)等の絶縁性樹脂からなる。 In the present embodiment, the entire regulating member 81 is made of a material harder than the electric wire 2, but the present invention is not limited to this, and at least the inner wall portion 81a may be made of a material harder than the electric wire 2. The regulating member 81 is made of, for example, an insulating resin such as PBT (polybutylene terephthalate), PA (polyamide), or PPS (polyphenylene sulfide).

磁性体コア82が内壁部81aよりも長さ方向(電線2の長手方向)に突出していると、当該突出した部分の磁性体コア82が屈曲された電線2に干渉して磁性体コア82の磁気特性が変化してしまう場合があるため、磁性体コア82は、内壁部81aよりも電線2の長手方向に突出しないように設けられることが望ましい。 When the magnetic core 82 protrudes from the inner wall portion 81a in the length direction (longitudinal direction of the electric wire 2), the magnetic core 82 of the protruding portion interferes with the bent electric wire 2 to cause the magnetic core 82. Since the magnetic characteristics may change, it is desirable that the magnetic core 82 is provided so as not to protrude from the inner wall portion 81a in the longitudinal direction of the electric wire 2.

なお、内壁部81aを厚く形成した場合には、磁性体コア82と電線2との距離が大きくなるため、磁性体コア82が内壁部81aよりも長さ方向(電線2の長手方向)に若干突出していても、電線2が磁性体コア82に干渉するおそれはなくなる。しかし、電線2と磁性体コア82との距離が大きくなるほど、積層された磁性体コア8の周長が長くなり電磁波抑制の効果が小さくなってしまう。すなわち、本実施の形態のように、磁性体コア82を内壁部81aよりも電線2の長手方向に突出しないように設けることで、内壁部81aの厚さをより小さく(磁性体コア82と電線2との距離をより小さく)し、電磁波抑制の効果をより高めつつも、磁性体コア82の磁気特性の変化を抑制可能になる。 When the inner wall portion 81a is thickly formed, the distance between the magnetic core 82 and the electric wire 2 becomes large, so that the magnetic core 82 is slightly longer in the length direction (longitudinal direction of the electric wire 2) than the inner wall portion 81a. Even if it protrudes, there is no possibility that the electric wire 2 interferes with the magnetic core 82. However, as the distance between the electric wire 2 and the magnetic core 82 increases, the peripheral length of the laminated magnetic core 8 becomes longer and the effect of suppressing electromagnetic waves becomes smaller. That is, as in the present embodiment, the thickness of the inner wall portion 81a is made smaller (the magnetic core 82 and the electric wire) by providing the magnetic core 82 so as not to protrude in the longitudinal direction of the electric wire 2 from the inner wall portion 81a. It is possible to suppress changes in the magnetic characteristics of the magnetic core 82 while further enhancing the effect of suppressing electromagnetic waves by reducing the distance from 2).

本実施の形態では、規制部材81は、内壁部81aとの間で磁性体コア82を挟み込むように、内壁部81aと磁性体コア82とを覆うように設けられた筒状の外壁部81bと、磁性体コア82が内壁部81aと外壁部81bとの間から脱落してしまうことを抑制する規制部としての前壁部81cおよび後壁部81dと、をさらに有している。 In the present embodiment, the regulating member 81 has a tubular outer wall portion 81b provided so as to cover the inner wall portion 81a and the magnetic core 82 so as to sandwich the magnetic core 82 between the inner wall portion 81a. Further, the magnetic core 82 further has a front wall portion 81c and a rear wall portion 81d as regulation portions for suppressing the magnetic core 82 from falling off from between the inner wall portion 81a and the outer wall portion 81b.

外壁部81bは、周囲の部材(車体等)が磁性体コア82に干渉して磁性体コア82の磁気特性が変化してしまうことを抑制する役割を果たすものであり、磁性体コア82の外周を覆うように形成されている。 The outer wall portion 81b plays a role of suppressing the surrounding members (vehicle body, etc.) from interfering with the magnetic material core 82 and changing the magnetic characteristics of the magnetic material core 82, and the outer peripheral portion of the magnetic material core 82. It is formed to cover the.

前壁部81cは、内壁部81aと外壁部81bのコネクタ3側の端部同士を連結し、内壁部81aと外壁部81b間の隙間を閉塞するように構成されている。後壁部81dは、内壁部81aと外壁部81bのコネクタ3と反対側の端部同士を連結し、内壁部81aと外壁部81b間の隙間を閉塞するように構成されている。つまり、規制部材81は、全体として環状に形成されており、その周方向と垂直な断面が矩形状に形成されている。 The front wall portion 81c is configured to connect the ends of the inner wall portion 81a and the outer wall portion 81b on the connector 3 side to each other and close the gap between the inner wall portion 81a and the outer wall portion 81b. The rear wall portion 81d is configured to connect the ends of the inner wall portion 81a and the outer wall portion 81b on the opposite side of the connector 3 to close the gap between the inner wall portion 81a and the outer wall portion 81b. That is, the regulating member 81 is formed in an annular shape as a whole, and its cross section perpendicular to the circumferential direction is formed in a rectangular shape.

本実施の形態では、内壁部81aは、3本の電線2と編組シールド4とを一括して覆う筒状に形成されており、3本の電線2を整列した状態で保持するように構成されている。すなわち、規制部材81が3本の電線2を保持するように構成されている。詳しくは、内壁部81aは、編組シールド4に接触し、3本の電線2を編組シールド4を介して保持している。また、本実施の形態において、規制部材81には、電磁波抑制部材8を車体等に固定するための固定部83が形成されている。詳しくは、外壁部81bの電線2の整列方向(長軸方向)における両端部には、電線2の整列方向(長軸方向)における外方に突出するように、電磁波抑制部材8を車体等の被固定対象に固定するための固定部83がそれぞれ形成されている。固定部83には、ボルト固定用のボルトを通すためのボルト穴83aが形成されており、ボルト穴83aの周縁には、ボルト締結時に規制部材81の変形を抑制するための金属からなる中空円筒状のカラー83bが設けられている。なお、被固定対象は、車体に限らず、モータ装置の筐体やインバータ装置の筐体等であってもよい。規制部材81に、電磁波抑制部材8を車体等の被固定対象に固定するための固定部83が形成されていることにより、別途固定部材を設けることを削減することが可能であるので、部品点数の削減が可能であるという効果がある。このように、本実施の形態では、規制部材81は、磁性体コア82を収容する収容部としての役割と、規制部材81の電線2の長手方向に沿った移動を規制する移動規制部としての役割とを兼ねている。 In the present embodiment, the inner wall portion 81a is formed in a tubular shape that collectively covers the three electric wires 2 and the braided shield 4, and is configured to hold the three electric wires 2 in an aligned state. ing. That is, the regulating member 81 is configured to hold the three electric wires 2. Specifically, the inner wall portion 81a contacts the braided shield 4 and holds the three electric wires 2 via the braided shield 4. Further, in the present embodiment, the regulating member 81 is formed with a fixing portion 83 for fixing the electromagnetic wave suppressing member 8 to the vehicle body or the like. Specifically, the electromagnetic wave suppressing member 8 is attached to both ends of the outer wall portion 81b in the alignment direction (long axis direction) of the electric wires 2 so as to project outward in the alignment direction (long axis direction) of the electric wires 2. Fixing portions 83 for fixing to the object to be fixed are formed respectively. A bolt hole 83a for passing a bolt for fixing a bolt is formed in the fixing portion 83, and a hollow cylinder made of metal for suppressing deformation of the regulating member 81 at the time of bolt fastening is formed on the peripheral edge of the bolt hole 83a. A shaped collar 83b is provided. The object to be fixed is not limited to the vehicle body, but may be a housing of a motor device, a housing of an inverter device, or the like. Since the regulating member 81 is formed with a fixing portion 83 for fixing the electromagnetic wave suppressing member 8 to a object to be fixed such as a vehicle body, it is possible to reduce the number of parts to be separately provided. Has the effect of being able to reduce. As described above, in the present embodiment, the restricting member 81 serves as an accommodating portion for accommodating the magnetic core 82 and as a movement restricting portion for restricting the movement of the restricting member 81 along the longitudinal direction of the electric wire 2. It also serves as a role.

本実施の形態では、3本の電線2の全体を一括して覆うように内壁部81aを形成し、その内壁部81aの周囲に、3本の電線2を一括して覆うように磁性体コア82を設けている。なお、これに限らず、各電線2を個別に覆うように内壁部を形成して、各電線2を個別に覆うように磁性体コア82を設けてもよい。ただし、この場合、各電線2の間隔(各電線2の周囲に個別に設けた内壁の間隔)を磁性体コア82が収容できる程度に大きくする必要が生じ、電磁波抑制部材8の大型化につながる場合がある。つまり、複数の電線2を一括して覆うように磁性体コア82を設けるよう構成することで、電磁波抑制部材8の小型化に寄与する。 In the present embodiment, the inner wall portion 81a is formed so as to collectively cover the entire three electric wires 2, and the magnetic core so as to collectively cover the three electric wires 2 around the inner wall portion 81a. 82 is provided. Not limited to this, the inner wall portion may be formed so as to individually cover each electric wire 2, and the magnetic core 82 may be provided so as to individually cover each electric wire 2. However, in this case, it is necessary to increase the distance between the electric wires 2 (the distance between the inner walls individually provided around each electric wire 2) so that the magnetic core 82 can accommodate the magnetic core 82, which leads to an increase in the size of the electromagnetic wave suppression member 8. In some cases. That is, by providing the magnetic core 82 so as to cover the plurality of electric wires 2 at once, it contributes to the miniaturization of the electromagnetic wave suppressing member 8.

電磁波抑制部材8を電線2の長手方向における所定の位置により強固に固定したい場合には、さらに、粘着テープを巻回して電磁波抑制部材8を電線2に固定する、あるいは、電線2に電線2を挟持するクリップ部材を設けて、当該クリップ部材の干渉により電線2の長手方向に沿った電磁波抑制部材8の移動を抑制する等してもよい。 If the electromagnetic wave suppression member 8 is to be firmly fixed at a predetermined position in the longitudinal direction of the electric wire 2, an adhesive tape is further wound to fix the electromagnetic wave suppression member 8 to the electric wire 2, or the electric wire 2 is attached to the electric wire 2. A clip member to be sandwiched may be provided to suppress the movement of the electromagnetic wave suppressing member 8 along the longitudinal direction of the electric wire 2 due to the interference of the clip member.

本実施の形態では、編組シールド4の周囲に電磁波抑制部材8を設けたが、これに限らず、編組シールド4の内側、すなわち電線2と編組シールド4との間に電磁波抑制部材8を設けるように構成してもよい。この場合、固定部83をボルト固定することにより電磁波抑制部材8を車体等に固定することは困難となるため、固定部83を省略し、専用の固定部材により編組シールド4と電磁波抑制部材8とをまとめて把持し車体等に固定するように構成すればよい。本実施の形態のように、編組シールド4の周囲に電磁波抑制部材8を設ける構成とすることで、別途固定部材を用意する必要がなくなり、部品点数を低減することが可能である。 In the present embodiment, the electromagnetic wave suppressing member 8 is provided around the braided shield 4, but the present invention is not limited to this, and the electromagnetic wave suppressing member 8 is provided inside the braided shield 4, that is, between the electric wire 2 and the braided shield 4. It may be configured as. In this case, since it is difficult to fix the electromagnetic wave suppressing member 8 to the vehicle body or the like by fixing the fixing portion 83 with bolts, the fixing portion 83 is omitted, and the braided shield 4 and the electromagnetic wave suppressing member 8 are provided by a dedicated fixing member. It may be configured so that the bolts are collectively gripped and fixed to the vehicle body or the like. By providing the electromagnetic wave suppressing member 8 around the braided shield 4 as in the present embodiment, it is not necessary to separately prepare a fixing member, and the number of parts can be reduced.

図7に示すように、規制部材81は、分割構成とされてもよい。ここでは、前壁部81cからなる第1部材84と、内壁部81aと外壁部81bと後壁部81dとからなる第2部材85とを備え、第2部材85における内壁部81aと外壁部81bと後壁部81dとに囲まれた空間86に磁性体コア82を収容した後に、第1部材84と第2部材85とを固定し一体化することにより、電磁波抑制部材8を構成している。第1部材84と第2部材85とを固定する方法は特に限定するものではなく、例えば、接着剤を用いた接着固定や、ランス等を用いた係止機構による機械的な固定等により、第1部材84と第2部材85とを固定し一体化することができる。 As shown in FIG. 7, the regulating member 81 may have a divided configuration. Here, a first member 84 composed of a front wall portion 81c, a second member 85 composed of an inner wall portion 81a, an outer wall portion 81b, and a rear wall portion 81d are provided, and the inner wall portion 81a and the outer wall portion 81b of the second member 85 are provided. After accommodating the magnetic core 82 in the space 86 surrounded by the rear wall portion 81d, the electromagnetic wave suppressing member 8 is formed by fixing and integrating the first member 84 and the second member 85. .. The method of fixing the first member 84 and the second member 85 is not particularly limited, and for example, the first member 84 and the second member 85 can be fixed by adhesive fixing using an adhesive, mechanical fixing by a locking mechanism using a lance or the like, or the like. The first member 84 and the second member 85 can be fixed and integrated.

(実施の形態の作用及び効果)
以上説明したように、本実施の形態に係るワイヤハーネス1では、電線2の周囲に設けられた電磁波抑制部材8を備え、電磁波抑制部材8は、電線2の外周を覆うように設けられ、電線2よりも硬い内壁部81aを有する規制部材81と、内壁部81aの周囲に設けられたナノ結晶軟磁性材料からなる環状の磁性体コア82と、を備えている。また、磁性体コア8をナノ結晶軟磁性材料からなるものとした。
(Actions and effects of embodiments)
As described above, the wire harness 1 according to the present embodiment includes the electromagnetic wave suppressing member 8 provided around the electric wire 2, and the electromagnetic wave suppressing member 8 is provided so as to cover the outer periphery of the electric wire 2. A regulating member 81 having an inner wall portion 81a harder than 2 and an annular magnetic core 82 made of a nanocrystalline soft magnetic material provided around the inner wall portion 81a are provided. Further, the magnetic core 8 is made of a nanocrystalline soft magnetic material.

ナノ結晶軟磁性材料からなる磁性体コア82を用いることで、従来用いていたフェライトコア等と比較して磁性体コア82を小型化し、小型かつ軽量な電磁波抑制部材8を実現できる。電磁波抑制部材8を小型化することにより、ワイヤハーネス1を狭い場所にも配策し易くなり、ワイヤハーネス1の配策レイアウトの自由度が向上する。また、電磁波抑制部材8を軽量とすることにより、電磁波抑制部材8を取り付けた際のワイヤハーネス1の質量の増大を抑制し、ワイヤハーネス1の取り扱い性を向上できる。 By using the magnetic core 82 made of a nanocrystal soft magnetic material, the magnetic core 82 can be made smaller than the conventionally used ferrite core or the like, and a compact and lightweight electromagnetic wave suppression member 8 can be realized. By downsizing the electromagnetic wave suppression member 8, it becomes easy to arrange the wire harness 1 even in a narrow place, and the degree of freedom in the arrangement layout of the wire harness 1 is improved. Further, by making the electromagnetic wave suppressing member 8 lightweight, it is possible to suppress an increase in the mass of the wire harness 1 when the electromagnetic wave suppressing member 8 is attached, and improve the handleability of the wire harness 1.

また、ナノ結晶軟磁性材料は応力が印加されると磁気特性が変化しやすい材料であるが、電線2よりも硬い内壁部81aの周囲に磁性体コア82を設ける構成とすることで、電線2が屈曲された際や電線2の振動等により磁性体コア82に負荷がかからないようし、磁性体コア82の磁気特性の変化を抑制することが可能になる。 Further, the nanocrystalline soft magnetic material is a material whose magnetic properties are likely to change when stress is applied. However, by providing the magnetic core 82 around the inner wall portion 81a, which is harder than the electric wire 2, the electric wire 2 It is possible to prevent a load from being applied to the magnetic core 82 due to bending, vibration of the electric wire 2, or the like, and to suppress changes in the magnetic characteristics of the magnetic core 82.

(変形例)
上記実施の形態では、内壁部81aが3本の電線2を保持するように構成されているが、内壁部81aは、3本の電線2を保持するように構成されていなくともよい。つまり、内壁部81aと編組シールド4との間にクリアランスが設けられていてもよい。
(Modification example)
In the above embodiment, the inner wall portion 81a is configured to hold the three electric wires 2, but the inner wall portion 81a may not be configured to hold the three electric wires 2. That is, a clearance may be provided between the inner wall portion 81a and the braided shield 4.

この場合、図8(a),(b)に示すワイヤハーネス1aのように、磁性体コア82を収容する収容部86と、電線2に(編組シールド4を介して)固定され規制部材81の電線2の長手方向に沿った移動を規制する移動規制部87とを、電線2の長手方向に沿って並んで配置してもよい。つまり、収容部86と移動規制部87とを電線2の長手方向の異なる位置に形成し、これらを一体化して規制部材81としてもよい。 In this case, as in the wire harness 1a shown in FIGS. 8A and 8B, the accommodating portion 86 accommodating the magnetic core 82 and the regulating member 81 fixed to the electric wire 2 (via the braided shield 4) The movement restricting unit 87 that regulates the movement of the electric wire 2 along the longitudinal direction may be arranged side by side along the longitudinal direction of the electric wire 2. That is, the accommodating portion 86 and the movement restricting portion 87 may be formed at different positions in the longitudinal direction of the electric wire 2 and integrated to form the regulating member 81.

収容部86は、図6で示した規制部材81と略同じものであり、内壁部81aと外壁部81bと前壁部81cと後壁部81dとを有する環状に形成されている。ただし、ワイヤハーネス1aにおいては、内壁部81aと電線2間に隙間がある。内壁部81aと電線2間に隙間を有することで、内壁部81a内に電線2や編組シールド4を通す作業が容易になり、電磁波抑制部材8の取り付け作業が容易になる。 The accommodating portion 86 is substantially the same as the regulating member 81 shown in FIG. 6, and is formed in an annular shape having an inner wall portion 81a, an outer wall portion 81b, a front wall portion 81c, and a rear wall portion 81d. However, in the wire harness 1a, there is a gap between the inner wall portion 81a and the electric wire 2. By having a gap between the inner wall portion 81a and the electric wire 2, the work of passing the electric wire 2 and the braided shield 4 through the inner wall portion 81a becomes easy, and the work of attaching the electromagnetic wave suppressing member 8 becomes easy.

移動規制部87は、編組シールド4を介して3本の電線2を挟持することで、電線2の長手方向に沿って規制部材81(電磁波抑制部材8)が移動しないように、規制部材81(電磁波抑制部材8)を電線2に固定するものである。 The movement restricting unit 87 sandwiches the three electric wires 2 through the braided shield 4 so that the restricting member 81 (electromagnetic wave suppressing member 8) does not move along the longitudinal direction of the electric wires 2 so that the restricting member 81 (electromagnetic wave suppressing member 8) does not move. The electromagnetic wave suppression member 8) is fixed to the electric wire 2.

移動規制部87は、3本の電線2(および編組シールド4)を一括して覆う筒状に形成された筒状部87aと、3本の電線2(および編組シールド4)を挟持した状態に筒状部87aの形状を固定する固定手段87bと、を有している。 The movement restricting unit 87 is in a state of sandwiching the tubular portion 87a formed in a tubular shape that collectively covers the three electric wires 2 (and the braided shield 4) and the three electric wires 2 (and the braided shield 4). It has a fixing means 87b for fixing the shape of the tubular portion 87a.

筒状部87aは、その軸方向と垂直な断面形状が角丸長方形状(2つの等しい長さの平行線と平行線の端部同士を連結する2つの半円弧とからなる形状)に形成されている。筒状部87aの内周面は、編組シールド4と接触している。筒状部87aは、内壁部81aと同様に、電線2よりも硬いことが好ましい。 The tubular portion 87a has a cross-sectional shape perpendicular to its axial direction formed into a rectangular shape with rounded corners (a shape consisting of two parallel lines of equal length and two semicircles connecting the ends of the parallel lines). ing. The inner peripheral surface of the tubular portion 87a is in contact with the braided shield 4. The tubular portion 87a, like the inner wall portion 81a, is preferably harder than the electric wire 2.

ワイヤハーネス1aでは、筒状部87aは、その周方向における一部のみ(例えば一方の平行線の部分のみ)において収容部86(ここでは後壁部81d)と連結されている。また、筒状部87aは、その周方向における1箇所(ここでは電線2の整列方向(長軸方向)における一端部、あるいは一方の半円弧の中央部分)にて切断され、当該切断部分にて開放可能に構成されている。 In the wire harness 1a, the tubular portion 87a is connected to the accommodating portion 86 (here, the rear wall portion 81d) only in a part in the circumferential direction (for example, only the portion of one parallel line). Further, the tubular portion 87a is cut at one location in the circumferential direction (here, one end portion in the alignment direction (major axis direction) of the electric wires 2 or the central portion of one half arc), and the tubular portion 87a is cut at the cut portion. It is configured to be openable.

また、ワイヤハーネス1aでは、固定手段87bは、筒状部87aの周方向における両端部同士(切断部分を挟んで対向する端部同士)を連結することで、3本の電線2(および編組シールド4)を挟持した状態に筒状部87aの形状を固定するように構成されている。ここでは、固定手段87bがランス88とランス88を係止する係止穴89とから構成されている。 Further, in the wire harness 1a, the fixing means 87b connects both ends of the tubular portion 87a in the circumferential direction (ends facing each other with the cut portion sandwiched between them) to connect the three electric wires 2 (and the braided shield). 4) is configured to fix the shape of the tubular portion 87a in a state of sandwiching the tubular portion 87a. Here, the fixing means 87b is composed of a lance 88 and a locking hole 89 for locking the lance 88.

筒状部87aを開放した状態で収容部86内に電線2と編組シールド4とを通し、その後ランス88を係止穴89に係止させることで、筒状部87aにより電線2と編組シールド4とを締め付けて、規制部材81を電線2に固定することができる。 With the tubular portion 87a open, the electric wire 2 and the braided shield 4 are passed through the accommodating portion 86, and then the lance 88 is locked in the locking hole 89. And can be tightened to fix the regulating member 81 to the electric wire 2.

なお、固定手段87bは、3本の電線2(および編組シールド4)を挟持した状態に筒状部87aの形状を固定できるものであればよく、例えば、筒状部87aの外周に巻き付けられ、筒状部87aを締め付けることにより3本の電線2(および編組シールド4)を挟持させる締結バンドであってもよい。 The fixing means 87b may be any as long as it can fix the shape of the tubular portion 87a while sandwiching the three electric wires 2 (and the braided shield 4). For example, the fixing means 87b is wound around the outer circumference of the tubular portion 87a. It may be a fastening band that sandwiches the three electric wires 2 (and the braided shield 4) by tightening the tubular portion 87a.

このように、ワイヤハーネス1aは、移動規制部87を切断部分にて開放可能な筒状部87aと固定手段87bとで構成することにより、切断部分を開放して拡げた状態で筒状部87a内に3本の電線2(および編組シールド4)を通し、その後固定手段87aにより電線2を挟持させることが可能である。よって、3本の電線2(および編組シールド4)を規制部材81に通し易くして電磁波抑制部材8を取り付ける作業の作業性を向上させることが可能になり、かつ、規制部材81を強固に電線2に固定することが可能になる。 As described above, in the wire harness 1a, the movement restricting portion 87 is composed of the tubular portion 87a that can be opened at the cut portion and the fixing means 87b, so that the tubular portion 87a is in a state where the cut portion is opened and expanded. It is possible to pass the three electric wires 2 (and the braided shield 4) through the inside, and then to sandwich the electric wires 2 by the fixing means 87a. Therefore, it is possible to easily pass the three electric wires 2 (and the braided shield 4) through the regulating member 81 to improve the workability of the work of attaching the electromagnetic wave suppressing member 8, and to firmly connect the regulating member 81 to the electric wire. It becomes possible to fix it to 2.

なお、図8では内壁部81aと編組シールド4との間に隙間を有する場合について説明したが、図8において内壁部81aと編組シールド4間の隙間をなくし(あるいは隙間を小さくし)、内壁部81a(収容部)に電線2を保持する機能を持たせてもよい。ただし、この場合、収容部86に電線2や編組シールド4を通す作業が困難になるため、内壁部81aと編組シールド4との間に隙間を有することが、より望ましいといえる。 Although the case where a gap is provided between the inner wall portion 81a and the braided shield 4 is described in FIG. 8, the gap between the inner wall portion 81a and the braided shield 4 is eliminated (or the gap is reduced) in FIG. The 81a (accommodation portion) may have a function of holding the electric wire 2. However, in this case, since it becomes difficult to pass the electric wire 2 and the braided shield 4 through the accommodating portion 86, it is more desirable to have a gap between the inner wall portion 81a and the braided shield 4.

収容部86と移動規制部87の一体化の手段としては、収容部86と移動規制部87とを接着剤等により接着する方法や、ねじ止めや係止機構等により機械的に固定する方法、あるいは、移動規制部87を収容部86とともに(収容部86を構成する樹脂と同じ)樹脂により一体成型する方法をとることが可能である。ここでは、収容部86と移動規制部87とを射出成形により一体成形した。 As a means of integrating the accommodating portion 86 and the movement restricting portion 87, a method of adhering the accommodating portion 86 and the movement restricting portion 87 with an adhesive or the like, a method of mechanically fixing the accommodating portion 86 and the movement restricting portion 87 by a screwing or a locking mechanism, etc. Alternatively, it is possible to take a method of integrally molding the movement restricting portion 87 together with the accommodating portion 86 with a resin (same as the resin constituting the accommodating portion 86). Here, the accommodating portion 86 and the movement restricting portion 87 are integrally molded by injection molding.

また、図8のワイヤハーネス1aでは、移動規制部87が編組シールド4を介して電線2に固定されている場合について説明したが、図9(a),(b)に示すワイヤハーネス1bのように、移動規制部87は、電線2の周囲を覆う部材に固定されていてもよい。 Further, in the wire harness 1a of FIG. 8, the case where the movement restricting portion 87 is fixed to the electric wire 2 via the braided shield 4 has been described, but it is as shown in the wire harness 1b shown in FIGS. 9A and 9B. In addition, the movement restricting unit 87 may be fixed to a member that covers the periphery of the electric wire 2.

図9に示すワイヤハーネス1bでは、コネクタ3から延出された3本の電線2を束ね(電線2の長手方向に垂直な断面において各電線2の中心軸を結んだ線が三角形状(正三角形状)となるように束ね)、その外周を編組シールド4で覆い、さらに編組シールド4の外周を蛇腹構造を有する円筒状に形成された樹脂製の筒状部材であるコルゲート管9が覆っている。ワイヤハーネス1bでは、移動規制部87がコルゲート管9に固定されている。 In the wire harness 1b shown in FIG. 9, three electric wires 2 extending from the connector 3 are bundled (a line connecting the central axes of each electric wire 2 in a cross section perpendicular to the longitudinal direction of the electric wire 2 is triangular (regular triangle). The outer circumference of the braided shield 4 is covered with a braided shield 4, and the outer circumference of the braided shield 4 is covered with a corrugated tube 9 which is a cylindrical resin member having a bellows structure. .. In the wire harness 1b, the movement restricting portion 87 is fixed to the corrugated pipe 9.

収容部86および移動規制部87は、コルゲート管9の外周に沿うように形成されている。ここでは、長手方向に垂直な方向の断面が円形状のコルゲート管9を用いているため、収容部86および移動規制部87は、略円環状に形成されている。 The accommodating portion 86 and the movement restricting portion 87 are formed along the outer periphery of the corrugated pipe 9. Here, since the corrugated pipe 9 having a circular cross section in the direction perpendicular to the longitudinal direction is used, the accommodating portion 86 and the movement restricting portion 87 are formed in a substantially annular shape.

図9に示す変形例においても、電磁波抑制部材8は、規制部材81及び磁性体コア82を備え、規制部材81は、電線2よりも硬い内壁部81aと、磁性体コア82を覆う筒状の外壁部81bと、磁性体コア82の移動を規制して脱落を抑制する前壁部81cおよび後壁部81dとを有している。また、内壁部81aは、コルゲート管9よりも硬く、コルゲート管9に比較して曲がりにくい。これにより、複数の電線2がコルゲート管9と共に屈曲されても、磁性体コア82にその屈曲による応力が発生しにくくなっている。 Also in the modified example shown in FIG. 9, the electromagnetic wave suppressing member 8 includes the regulating member 81 and the magnetic core 82, and the regulating member 81 has an inner wall portion 81a harder than the electric wire 2 and a tubular shape covering the magnetic core 82. It has an outer wall portion 81b, a front wall portion 81c that regulates the movement of the magnetic core 82 to prevent it from falling off, and a rear wall portion 81d. Further, the inner wall portion 81a is harder than the corrugated pipe 9 and is less likely to bend than the corrugated pipe 9. As a result, even if the plurality of electric wires 2 are bent together with the corrugated pipe 9, stress due to the bending is less likely to occur in the magnetic core 82.

なお、図8のワイヤハーネス1aでは、収容部86のコネクタ3と反対側に移動規制部87を設けていたが、図9のワイヤハーネス1bでは、収容部86のコネクタ3側に移動規制部87を設けている。 In the wire harness 1a of FIG. 8, the movement restricting portion 87 is provided on the side opposite to the connector 3 of the accommodating portion 86, but in the wire harness 1b of FIG. 9, the movement restricting portion 87 is provided on the connector 3 side of the accommodating portion 86. Is provided.

また、図8では電磁波抑制部材8を車体やモータ等の車載装置などの被固定対象に固定するための固定部83が収容部86に一体に形成されていたが、図9のワイヤハーネス1bでは、固定部83が移動規制部87に一体に形成されている。ワイヤハーネス1bでは、筒状部87aから径方向外方に突出するようにブロック状の固定部83を形成した。例えば、固定部83に固定用のボルトを螺号するねじ穴を形成しておくことで、固定部83を車体等の固定対象にボルト固定することが可能である。なお、収容部86と移動規制部87の両方に固定部83が設けられていてもよく、収容部86と移動規制部87とにわたって固定部83が設けられていてもよい。 Further, in FIG. 8, a fixing portion 83 for fixing the electromagnetic wave suppressing member 8 to an object to be fixed such as an in-vehicle device such as a vehicle body or a motor is integrally formed with the accommodating portion 86, but in the wire harness 1b of FIG. , The fixing portion 83 is integrally formed with the movement restricting portion 87. In the wire harness 1b, a block-shaped fixing portion 83 is formed so as to project outward in the radial direction from the tubular portion 87a. For example, by forming a screw hole for screwing a fixing bolt in the fixing portion 83, the fixing portion 83 can be bolted to a fixing target such as a vehicle body. The fixing portion 83 may be provided in both the accommodating portion 86 and the movement restricting portion 87, or the fixing portion 83 may be provided between the accommodating portion 86 and the movement restricting portion 87.

図10に示すように、ワイヤハーネス1bでは、移動規制部87の筒状部87aは、固定部83の端部にて切断され開放可能とされている。固定手段87bは、筒状部87aの端部(固定部83と対向する端部)から延出された舌部872と、固定部83の端部に形成され舌部872が挿入されるガイド穴873と、ガイド穴873の周縁からガイド穴873側に突出する係止突起874と、筒状部87aの端部(固定部83と対向する端部)に形成され係止突起874が係止される凹状の係止溝871と、を有している。 As shown in FIG. 10, in the wire harness 1b, the tubular portion 87a of the movement restricting portion 87 is cut at the end of the fixing portion 83 so that it can be opened. The fixing means 87b includes a tongue portion 872 extending from the end portion of the tubular portion 87a (the end portion facing the fixing portion 83) and a guide hole formed at the end portion of the fixing portion 83 into which the tongue portion 872 is inserted. The 873, the locking projection 874 protruding from the peripheral edge of the guide hole 873 toward the guide hole 873, and the locking projection 874 formed at the end of the tubular portion 87a (the end facing the fixing portion 83) are locked. It has a concave locking groove 871 and.

舌部872及びガイド穴873は、舌部872をガイド穴873に挿入した状態において、筒状部87aの中心軸(内壁の中心軸)を中心とした円の接線方向に延びるように形成されている。舌部872及びガイド穴873は、係止突起874と係止溝871とを係止させる際のガイドとなるものである。なお、突起と溝の関係は逆であってもよく、固定部83側に係止溝871が、筒状部87a側(舌部872側)に係止突起874がそれぞれ形成されていてもよい。 The tongue portion 872 and the guide hole 873 are formed so as to extend in the tangential direction of a circle centered on the central axis (central axis of the inner wall) of the tubular portion 87a in a state where the tongue portion 872 is inserted into the guide hole 873. There is. The tongue portion 872 and the guide hole 873 serve as a guide for locking the locking projection 874 and the locking groove 871. The relationship between the protrusion and the groove may be reversed, and the locking groove 871 may be formed on the fixing portion 83 side, and the locking protrusion 874 may be formed on the tubular portion 87a side (tongue portion 872 side). ..

(実施の形態のまとめ)
次に、以上説明した実施の形態から把握される技術思想について、実施の形態における符号等を援用して記載する。ただし、以下の記載における各符号等は、特許請求の範囲における構成要素を実施の形態に具体的に示した部材等に限定するものではない。
(Summary of embodiments)
Next, the technical idea grasped from the above-described embodiment will be described with reference to the reference numerals and the like in the embodiment. However, the respective reference numerals and the like in the following description are not limited to the members and the like in which the components in the claims are specifically shown in the embodiment.

[1]複数の電線(2)と、前記複数の電線(2)を一括して覆う環状の内壁部(81a)と、前記内壁部(81a)の周囲に設けられた環状の磁性体コア(82)と、を備えたワイヤハーネス(1)。 [1] A plurality of electric wires (2), an annular inner wall portion (81a) that collectively covers the plurality of electric wires (2), and an annular magnetic core (81a) provided around the inner wall portion (81a). 82) and a wire harness (1).

[2]前記磁性体コア(82)は、ナノ結晶軟磁性材料からなる、[1]に記載のワイヤハーネス(1)。 [2] The wire harness (1) according to [1], wherein the magnetic core (82) is made of a nanocrystalline soft magnetic material.

[3]前記磁性体コア(82)の磁気特性は、前記磁性体コア(82)から前記電線(2)までの距離と前記磁性体コア(82)に付与される応力とで決められる、[1]または[2]に記載のワイヤハーネス(1)。 [3] The magnetic characteristics of the magnetic core (82) are determined by the distance from the magnetic core (82) to the electric wire (2) and the stress applied to the magnetic core (82). The wire harness (1) according to 1] or [2].

以上、本発明の実施の形態を説明したが、上記に記載した実施の形態は特許請求の範囲に係る発明を限定するものではない。また、実施の形態の中で説明した特徴の組合せの全てが発明の課題を解決するための手段に必須であるとは限らない点に留意すべきである。 Although the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. It should also be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

本発明は、その趣旨を逸脱しない範囲で適宜変形して実施することが可能である。 The present invention can be appropriately modified and implemented without departing from the spirit of the present invention.

例えば、上記実施の形態では、電線2が3本である場合を説明したが、電線2の本数は限定されず、例えば、電線2が1本、2本、または4本以上であってもよい。 For example, in the above embodiment, the case where the number of electric wires 2 is three has been described, but the number of electric wires 2 is not limited, and for example, the number of electric wires 2 may be one, two, or four or more. ..

1…ワイヤハーネス
2…電線
3…コネクタ
4…編組シールド
8…電磁波抑制部材
81…規制部材
81a…内壁部
81b…外壁部
81c…前壁部(規制部)
81d…後壁部(規制部)
82…磁性体コア
83…固定部
1 ... Wire harness 2 ... Electric wire 3 ... Connector 4 ... Braided shield 8 ... Electromagnetic wave suppression member 81 ... Regulatory member 81a ... Inner wall portion 81b ... Outer wall portion 81c ... Front wall portion (regulatory portion)
81d ... Rear wall part (regulation part)
82 ... Magnetic core 83 ... Fixed part

Claims (3)

複数の電線と、
前記複数の電線を一括して覆う環状の内壁部と、
前記内壁部の周囲に設けられた環状の磁性体コアと、
を備えたワイヤハーネス。
With multiple wires,
An annular inner wall portion that collectively covers the plurality of electric wires, and
An annular magnetic core provided around the inner wall and
Wire harness with.
前記磁性体コアは、ナノ結晶軟磁性材料からなる、
請求項1に記載のワイヤハーネス。
The magnetic core is made of a nanocrystalline soft magnetic material.
The wire harness according to claim 1.
前記磁性体コアの磁気特性は、前記磁性体コアから前記電線までの距離と前記磁性体コアに付与される応力とで決められる、
請求項1または2に記載のワイヤハーネス。
The magnetic properties of the magnetic core are determined by the distance from the magnetic core to the electric wire and the stress applied to the magnetic core.
The wire harness according to claim 1 or 2.
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