JP2010186601A - Shielded conductive path and method for manufacturing shielded conductive path - Google Patents

Shielded conductive path and method for manufacturing shielded conductive path Download PDF

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JP2010186601A
JP2010186601A JP2009028794A JP2009028794A JP2010186601A JP 2010186601 A JP2010186601 A JP 2010186601A JP 2009028794 A JP2009028794 A JP 2009028794A JP 2009028794 A JP2009028794 A JP 2009028794A JP 2010186601 A JP2010186601 A JP 2010186601A
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pipe
electric wire
conductive path
outer periphery
shield conductive
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Kunihiko Watanabe
邦彦 渡邉
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a shielded conductive path as well as a method for manufacturing the shielded conductive path, for improving a heat dissipation property. <P>SOLUTION: In the shielded conductive path 10, a wire 11 made by surrounding a conductor 13 with insulation coating 14 is inserted into a metal-made pipe 12, and the pipe 12 has a shape to be along an outer periphery of the wire 11. With this structure, a whole periphery of the wire 11 is close to the pipe 12, heat of the wire 11 is efficiently transmitted to the pipe 12, thus heat dissipation property is enhanced. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、シールド導電路およびシールド導電路の製造方法に関する。   The present invention relates to a shield conductive path and a method for manufacturing a shield conductive path.

従来より、複数本のノンシールド電線を金属製のパイプに挿通することで、電線をシールドするとともに保護するようにしたシールド導電路が知られている（例えば特許文献１）。   2. Description of the Related Art Conventionally, a shield conductive path that shields and protects an electric wire by inserting a plurality of non-shielded electric wires through a metal pipe is known (for example, Patent Document 1).

特開２００４−１７１９５２号公報JP 2004-171952 A

ところで、上記のような構成のシールド導電路では、通電時に電線で発生した熱が熱伝導率の低い空気に遮断されてパイプに伝達しにくく、パイプの内部に籠もりやすいので、放熱性の向上を図る工夫が望まれていた。   By the way, in the shielded conductive path configured as described above, the heat generated in the electric wire when energized is blocked by air with low thermal conductivity and is difficult to transmit to the pipe, and it is easy to trap inside the pipe, improving heat dissipation A device to achieve this was desired.

本発明は上記のような事情に基づいて完成されたものであって、放熱性を向上させることが可能なシールド導電路およびシールド導電路の製造方法を提供することを目的とする。   This invention is completed based on the above situations, Comprising: It aims at providing the manufacturing method of the shield conductive path which can improve heat dissipation, and a shield conductive path.

本発明のシールド導電路は、導体を絶縁被覆で包囲してなる１本の電線を金属製のパイプに挿通し、前記パイプを前記一本の電線の外周に沿う形状としたものである。このような構成によれば、電線の全周がパイプに近接するから、電線の熱が効率よくパイプに伝達するので、放熱性を向上することができる。   In the shield conductive path of the present invention, one electric wire formed by surrounding a conductor with an insulating coating is inserted into a metal pipe, and the pipe is shaped along the outer periphery of the one electric wire. According to such a configuration, since the entire circumference of the electric wire is close to the pipe, the heat of the electric wire is efficiently transmitted to the pipe, so that the heat dissipation can be improved.

また、前記パイプの内周を前記１本の電線の外周に面接触させたものとしてもよい。このような構成によれば、電線の熱がより効率よくパイプに伝達するから、さらなる放熱性の向上を図ることができる。   The inner circumference of the pipe may be in surface contact with the outer circumference of the one electric wire. According to such a configuration, the heat of the electric wire is more efficiently transmitted to the pipe, so that further improvement in heat dissipation can be achieved.

また、前記パイプの外周に、外方に突出する突出片を設けたものとしてもよい。このような構成によれば、パイプの放熱面積が増えるから、さらなる放熱性の向上を図ることができる。
また、前記突出片を介して前記パイプ同士を連結する構成としてもよい。このような構成によれば、複数のシールド導電路を一体に取り扱うことができる。 Moreover, it is good also as what provided the protrusion piece which protrudes outward in the outer periphery of the said pipe. According to such a configuration, since the heat radiation area of the pipe is increased, the heat radiation performance can be further improved.
Moreover, it is good also as a structure which connects the said pipes via the said protrusion piece. According to such a configuration, a plurality of shield conductive paths can be handled integrally.

本発明のシールド導電路の製造方法は、導体を絶縁被覆で包囲してなる１本の電線を金属製のパイプに挿通し、前記パイプを前記一本の電線の外周に沿った形状となるように変形させる方法である。   In the method of manufacturing a shield conductive path according to the present invention, one electric wire formed by surrounding a conductor with an insulating coating is inserted into a metal pipe, and the pipe is shaped along the outer periphery of the one electric wire. This is a method of deforming.

本発明によれば、放熱性を向上させることが可能なシールド導電路およびシールド導電路の製造方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the shield conductive path which can improve heat dissipation, and a shield conductive path can be provided.

実施形態１にかかるシールド導電路の断面図Sectional drawing of the shield conductive path concerning Embodiment 1 パイプを加工する様子を表す概念図Conceptual diagram showing how a pipe is processed 実施形態２にかかるシールド導電路の断面図Sectional drawing of the shield conductive path concerning Embodiment 2. 実施形態３にかかるシールド導電路の断面図Sectional drawing of the shield conductive path concerning Embodiment 3 実施形態４にかかるシールド導電路の断面図Sectional drawing of the shield conductive path concerning Embodiment 4.

＜実施形態１＞
以下、本発明を具体化した実施形態１について、図１および図２を参照しつつ詳細に説明する。
本実施形態におけるシールド導電路１０は、例えば電気自動車において走行用の動力源を構成するバッテリ、インバータ、モータなどの装置（図示せず）の間に配索されるものであり、ノンシールドタイプの電線１１を、シールド機能と電線保護機能を兼ね備える金属製のパイプ１２内に挿通してなるものである。 <Embodiment 1>
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.
The shield conductive path 10 in this embodiment is routed between devices (not shown) such as a battery, an inverter, and a motor that constitute a power source for traveling in an electric vehicle, for example. The electric wire 11 is inserted through a metal pipe 12 having both a shielding function and an electric wire protection function.

電線１１は、金属製（例えば、アルミニウム合金や銅合金など）の導体１３の外周を合成樹脂製の絶縁被覆１４で包囲してなるものであり、導体１３は、複数本の細線（図示せず）を螺旋状に寄り合わせた撚り線からなる。   The electric wire 11 is formed by surrounding the outer periphery of a conductor 13 made of metal (for example, aluminum alloy or copper alloy) with an insulating coating 14 made of synthetic resin, and the conductor 13 includes a plurality of thin wires (not shown). ) In a spiral shape.

パイプ１２は金属製（例えば、アルミニウム合金や銅合金など）であって、その断面形状は、パイプ１２内に挿通された一本の電線１１の外周に沿う円形状をなしている。詳しくは、パイプ１２の内周１２Ａおよび外周１２Ｂは、軸方向から見ると、ともに凹凸のない真円形状をなしている。また、パイプ１２の厚さ寸法は、軸方向および周方向に一定とされている。パイプ１２の内周１２Ａは、略全周にわたり電線１１の外周に面接触している。   The pipe 12 is made of metal (for example, aluminum alloy or copper alloy), and the cross-sectional shape thereof is a circular shape along the outer periphery of one electric wire 11 inserted into the pipe 12. Specifically, the inner periphery 12A and the outer periphery 12B of the pipe 12 both have a perfect circle shape with no irregularities when viewed from the axial direction. The thickness dimension of the pipe 12 is constant in the axial direction and the circumferential direction. The inner periphery 12A of the pipe 12 is in surface contact with the outer periphery of the electric wire 11 over substantially the entire periphery.

次に、シールド導電路１０の製造方法について説明する。
まず、パイプ１２を製造する。このとき、電線１１よりも一回り大きい（内径寸法が電線１１の外径寸法よりも大きい）断面形状を有するパイプ１２を、押し出し成形により製造する。
次いで、パイプ１２内に１本の電線１１を挿通させる。電線１１の外周とパイプ１２の内周１２Ａとの間には、電線１１の挿通を容易にするためのクリアランスが空いている。 Next, a method for manufacturing the shield conductive path 10 will be described.
First, the pipe 12 is manufactured. At this time, the pipe 12 having a cross-sectional shape that is slightly larger than the electric wire 11 (the inner diameter is larger than the outer diameter of the electric wire 11) is manufactured by extrusion molding.
Next, one electric wire 11 is inserted into the pipe 12. A clearance is provided between the outer periphery of the electric wire 11 and the inner periphery 12A of the pipe 12 for facilitating insertion of the electric wire 11.

その後、パイプ１２を、一本の電線１１の外周に沿った形状となるように変形させる。この工程においては、複数のローラ１５を有する加工機（図示せず）を使用する。電線１１を挿通したパイプ１２を、加工機のうちローラ１５に囲まれてなる空間に挿入すると、回転軸１５Ａを中心にローラ１５が回転し、ローラ１５の外周がパイプ１２の外周１２Ｂを押圧する。そして、ローラ１５の押圧力を管理しつつパイプ１２を軸方向に移動させると、ローラ１５の押圧作用によりパイプ１２は縮径し、電線１１の外周に密着する。こうして、パイプ１２は、電線１１の外周に沿った形状に塑性変形し、シールド導電路１０が完成する。   Thereafter, the pipe 12 is deformed so as to have a shape along the outer periphery of the single electric wire 11. In this step, a processing machine (not shown) having a plurality of rollers 15 is used. When the pipe 12 through which the electric wire 11 is inserted is inserted into a space surrounded by the roller 15 in the processing machine, the roller 15 rotates around the rotation shaft 15A, and the outer periphery of the roller 15 presses the outer periphery 12B of the pipe 12. . When the pipe 12 is moved in the axial direction while managing the pressing force of the roller 15, the diameter of the pipe 12 is reduced by the pressing action of the roller 15, and the pipe 12 is in close contact with the outer periphery of the electric wire 11. Thus, the pipe 12 is plastically deformed into a shape along the outer periphery of the electric wire 11, and the shield conductive path 10 is completed.

次に、上記のように構成された実施形態１の作用および効果について説明する。
本実施形態では、シールド導電路１０は、導体１３を絶縁被覆１４で包囲してなる１本の電線１１を金属製のパイプ１２に挿通し、このパイプ１２を一本の電線１１の外周に沿う形状としている。これにより、電線１１の全周がパイプ１２に近接するから、電線１１の通電時に導体１３において発生した熱は、導体１３から絶縁被覆１４に伝達され、絶縁被覆１４の外周の全体からパイプ１２の内周１２Ａの全体に伝達され、パイプ１２の外周１２Ｂから大気中へ放出される。ここで、複数本（例えば３本）の電線１１をパイプに挿通し、３本の電線１１の外周に沿う形状にパイプを変形させた場合には、パイプ内において電線１１同士が密着する部分が生じ、その部分においては熱が籠もりやすくなるおそれがある。しかしながら、本実施形態では、１本の電線１１を金属製のパイプ１２に挿通し、このパイプ１２を一本の電線１１の外周に沿う形状としているから、そのような電線１１の密着部分が生じず、電線１１の全周からパイプ１２に熱が伝わるようになっている。したがって、電線１１の熱が効率よくパイプ１２に伝達するので、放熱性を向上することができる。 Next, operations and effects of the first embodiment configured as described above will be described.
In the present embodiment, the shield conductive path 10 has a single electric wire 11 formed by surrounding a conductor 13 with an insulating coating 14 inserted into a metal pipe 12, and the pipe 12 extends along the outer periphery of the single electric wire 11. It has a shape. Accordingly, since the entire circumference of the electric wire 11 is close to the pipe 12, the heat generated in the conductor 13 when the electric wire 11 is energized is transmitted from the conductor 13 to the insulating coating 14, and the entire outer circumference of the insulating coating 14 is transferred from the pipe 12. It is transmitted to the entire inner periphery 12A and discharged from the outer periphery 12B of the pipe 12 into the atmosphere. Here, when a plurality of (for example, three) electric wires 11 are inserted into the pipe and the pipe is deformed into a shape along the outer periphery of the three electric wires 11, there is a portion where the electric wires 11 are in close contact with each other in the pipe. This may cause heat to be trapped in that part. However, in this embodiment, since the single electric wire 11 is inserted into the metal pipe 12 and the pipe 12 is shaped along the outer periphery of the single electric wire 11, such a close contact portion of the electric wire 11 is generated. First, heat is transmitted from the entire circumference of the electric wire 11 to the pipe 12. Therefore, since the heat of the electric wire 11 is efficiently transmitted to the pipe 12, heat dissipation can be improved.

また、パイプ１２の内周１２Ａを１本の電線１１の外周に面接触させている。これにより、電線１１の熱が効率よくパイプ１２に伝達するから、さらなる放熱性の向上を図ることができる。   Further, the inner periphery 12 </ b> A of the pipe 12 is brought into surface contact with the outer periphery of one electric wire 11. Thereby, since the heat | fever of the electric wire 11 is efficiently transmitted to the pipe 12, the further improvement of heat dissipation can be aimed at.

なお、本実施形態のシールド導電路１０は、１本の電線１１を金属製のパイプ１２に挿通したものであるから、複数本の電線１１をパイプに一括して挿通し、この複数本の電線１１の外周に沿う形状にパイプを変形させてなるシールド導電路に比べてパイプの剛性が低くなる。したがって、機器等との干渉を避けて三次元的に屈曲して配索する際、シールド導電路１０の曲げ加工を容易に行うことができる。   In addition, since the shield conductive path 10 of this embodiment is one in which one electric wire 11 is inserted through a metal pipe 12, a plurality of electric wires 11 are collectively inserted into the pipe, and the plurality of electric wires are inserted. The rigidity of the pipe is lower than that of the shield conductive path obtained by deforming the pipe into a shape along the outer periphery of the pipe 11. Therefore, when the cable is bent and arranged three-dimensionally while avoiding interference with a device or the like, the shield conductive path 10 can be easily bent.

また、本実施形態のシールド導電路１０は、１本の電線１１を金属製のパイプ１２に挿通したものであるから、例えば複数本の電線１１をパイプ１２に一括して挿通し、この複数本の電線１１の外周に沿う形状にパイプを変形させてなるシールド導電路に比べて、パイプ１２を縮径させる際の圧力が電線１１の全周に均等に作用するから、電線１１の断面形状が歪んでしまうことを防ぐことができる。   In addition, since the shield conductive path 10 of the present embodiment is one in which one electric wire 11 is inserted through a metal pipe 12, for example, a plurality of electric wires 11 are inserted into the pipe 12 at once, and the plurality of electric wires 11 are inserted. Compared with a shield conductive path formed by deforming a pipe into a shape along the outer periphery of the electric wire 11, the pressure when reducing the diameter of the pipe 12 acts equally on the entire circumference of the electric wire 11. It can be prevented from being distorted.

＜実施形態２＞
次に、本発明を具体化した実施形態２に係るシールド導電路２０を図３によって説明する。
本実施形態のシールド導電路２０は、パイプ２１の外周２１Ｂに、外方に突出する突出片２２を設けた点で、実施形態１とは相違する。なお、実施形態１と同様の構成には同一符号を付して重複する説明を省略する。 <Embodiment 2>
Next, the shield conductive path 20 according to the second embodiment embodying the present invention will be described with reference to FIG.
The shield conductive path 20 of the present embodiment is different from that of the first embodiment in that a protruding piece 22 that protrudes outward is provided on the outer periphery 21 </ b> B of the pipe 21. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and the overlapping description is abbreviate | omitted.

本実施形態のシールド導電路２０は、実施形態１と同様、１本の電線１１を金属製のパイプ２１内に挿通してなるものである。
パイプ２１の内周２１Ａは、実施形態１と同様、パイプ２１内に挿通された一本の電線１１の外周に沿う円形状をなし、略全周にわたり電線１１の外周に面接触している。 As in the first embodiment, the shield conductive path 20 according to the present embodiment is formed by inserting one electric wire 11 into a metal pipe 21.
The inner periphery 21A of the pipe 21 has a circular shape along the outer periphery of the single electric wire 11 inserted into the pipe 21 as in the first embodiment, and is in surface contact with the outer periphery of the electric wire 11 over substantially the entire periphery.

そして、パイプ２１の外周２１Ｂには、一対の突出片２２が設けられている。突出片２２は、パイプ２１の外周２１Ｂから外方に突出してパイプ２１の軸方向に連なる板状をなしている。突出片２２の厚さ寸法は、パイプ２１の厚さ寸法と同等とされている。一対の突出片２２は、パイプ２１の外周２１Ｂから略垂直に突出し、パイプ２１の中心軸に関して対称に設けられている。   A pair of protruding pieces 22 are provided on the outer periphery 21 </ b> B of the pipe 21. The protruding piece 22 has a plate shape that protrudes outward from the outer periphery 21 </ b> B of the pipe 21 and continues in the axial direction of the pipe 21. The thickness dimension of the protruding piece 22 is equivalent to the thickness dimension of the pipe 21. The pair of projecting pieces 22 project substantially perpendicularly from the outer periphery 21 </ b> B of the pipe 21, and are provided symmetrically with respect to the central axis of the pipe 21.

このシールド導電路２０を製造するには、まず、電線１１よりも一回り大きい断面形状をなし、かつ外周２１Ｂに一対の突出片２２を有するパイプ２１を押し出し成形により製造し、次いで、実施形態１と同様、パイプ２１内に１本の電線１１を挿通させ、その後、パイプ２１を、一本の電線１１の外周に沿った形状となるように変形させる。   In order to manufacture this shield conductive path 20, first, a pipe 21 having a cross-sectional shape that is slightly larger than the electric wire 11 and having a pair of protruding pieces 22 on the outer periphery 21B is manufactured by extrusion molding. Similarly, the single electric wire 11 is inserted into the pipe 21, and then the pipe 21 is deformed so as to have a shape along the outer periphery of the single electric wire 11.

以上のように本実施形態に係るシールド導電路２０は、導体１３を絶縁被覆１４で包囲してなる１本の電線１１を金属製のパイプ２１に挿通し、パイプ２１を一本の電線１１の外周に沿う形状としたものであるから、実施形態１と同様、電線１１の熱が効率よくパイプ２１に伝達するので、放熱性を向上することができる。
また、パイプ２１の外周２１Ｂに、外方に突出する突出片２２を設けたから、その分パイプ２１の放熱面積が増えるので、さらなる放熱性の向上を図ることができる。 As described above, in the shield conductive path 20 according to the present embodiment, the single electric wire 11 formed by surrounding the conductor 13 with the insulating coating 14 is inserted into the metal pipe 21, and the pipe 21 is connected to the single electric wire 11. Since it is made into the shape along outer periphery, since the heat of the electric wire 11 is efficiently transmitted to the pipe 21 like Embodiment 1, heat dissipation can be improved.
Further, since the projecting piece 22 projecting outward is provided on the outer periphery 21B of the pipe 21, the heat radiation area of the pipe 21 is increased accordingly, so that further improvement in heat dissipation can be achieved.

＜実施形態３＞
次に、本発明を具体化した実施形態３に係るシールド導電路３０を図４によって説明する。
本実施形態のシールド導電路３０は、パイプ３１の外周３１Ｂに、外方に突出する突出片３２を設けた点で、実施形態１とは相違する。なお、実施形態１と同様の構成には同一符号を付して重複する説明を省略する。 <Embodiment 3>
Next, a shield conductive path 30 according to a third embodiment of the present invention will be described with reference to FIG.
The shield conductive path 30 of the present embodiment is different from that of the first embodiment in that a protruding piece 32 protruding outward is provided on the outer periphery 31B of the pipe 31. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and the overlapping description is abbreviate | omitted.

本実施形態のシールド導電路３０は、実施形態１と同様、１本の電線１１を金属製のパイプ３１内に挿通してなるものである。
パイプ３１の内周３１Ａは、実施形態１と同様、パイプ３１内に挿通された一本の電線１１の外周に沿う円形状をなし、略全周にわたり電線１１の外周に面接触している。 As in the first embodiment, the shield conductive path 30 of the present embodiment is formed by inserting one electric wire 11 into a metal pipe 31.
Similar to the first embodiment, the inner periphery 31 </ b> A of the pipe 31 has a circular shape along the outer periphery of the single electric wire 11 inserted into the pipe 31, and is in surface contact with the outer periphery of the electric wire 11 over substantially the entire periphery.

そして、パイプ３１の外周３１Ｂには、複数の突出片３２が設けられている。各突出片３２は、パイプ３１の外周３１Ｂから外方に突出してパイプ３１の軸方向に連なる突条をなしている。複数の突出片３２は、所定のピッチ（本実施形態では一定ピッチ）でパイプ３１の周方向に配置され、パイプ３１の中心軸に関して対称をなす一対の突出片３２のセットが、複数セット配置された形態をなしている。全ての突出片３２の厚さ寸法およびパイプ３１からの突出寸法は同等とされている。なお、突出片３２の厚さ寸法は、パイプ３１の厚さ寸法と同等とされている。   A plurality of protruding pieces 32 are provided on the outer periphery 31 </ b> B of the pipe 31. Each protruding piece 32 protrudes outward from the outer periphery 31 </ b> B of the pipe 31 to form a protrusion that extends in the axial direction of the pipe 31. The plurality of protruding pieces 32 are arranged in the circumferential direction of the pipe 31 at a predetermined pitch (a constant pitch in the present embodiment), and a plurality of sets of a pair of protruding pieces 32 that are symmetric with respect to the central axis of the pipe 31 are arranged. It has a form. The thickness dimension of all the protrusion pieces 32 and the protrusion dimension from the pipe 31 are made equivalent. In addition, the thickness dimension of the protruding piece 32 is equivalent to the thickness dimension of the pipe 31.

このようなシールド導電路３０は、以下のようにして製造される。まず、電線１１よりも一回り大きい断面形状で、かつ外周３１Ｂに複数の突出片３２を有するパイプ３１を押し出し成形により製造し、次いで、実施形態１と同様、パイプ３１内に１本の電線１１を挿通させ、その後、パイプ３１を、一本の電線１１の外周に沿った形状となるように変形させることで製造される。   Such a shield conductive path 30 is manufactured as follows. First, a pipe 31 having a cross-sectional shape that is slightly larger than that of the electric wire 11 and having a plurality of protruding pieces 32 on the outer periphery 31B is manufactured by extrusion molding. Then, the pipe 31 is manufactured by being deformed so as to have a shape along the outer periphery of the single electric wire 11.

以上のように本実施形態に係るシールド導電路３０は、導体１３を絶縁被覆１４で包囲してなる１本の電線１１を金属製のパイプ３１に挿通し、パイプ３１を一本の電線１１の外周に沿う形状としたものであるから、実施形態１と同様、電線１１の熱が効率よくパイプ３１に伝達するので、放熱性を向上することができる。
また、パイプ３１の外周３１Ｂに、外方に突出する突出片３２を設けたから、その分パイプ３１の放熱面積が増えるので、さらなる放熱性の向上を図ることができる。 As described above, in the shield conductive path 30 according to the present embodiment, the single electric wire 11 formed by surrounding the conductor 13 with the insulating coating 14 is inserted into the metal pipe 31, and the pipe 31 is connected to the single electric wire 11. Since it has a shape along the outer periphery, the heat of the electric wire 11 is efficiently transmitted to the pipe 31 as in the first embodiment, so that the heat dissipation can be improved.
Further, since the projecting piece 32 projecting outward is provided on the outer periphery 31B of the pipe 31, the heat radiation area of the pipe 31 is increased accordingly, so that further improvement in heat dissipation can be achieved.

＜実施形態４＞
次に、本発明を具体化した実施形態４に係るシールド導電路４０を図５によって説明する。
本実施形態のシールド導電路４０は、突出片４１を介してパイプ４２同士を連結する構成とした点で、実施形態１とは相違する。なお、実施形態１と同様の構成には同一符号を付して重複する説明を省略する。 <Embodiment 4>
Next, a shield conductive path 40 according to a fourth embodiment embodying the present invention will be described with reference to FIG.
The shield conductive path 40 of the present embodiment is different from the first embodiment in that the pipes 42 are connected to each other via the protruding piece 41. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and the overlapping description is abbreviate | omitted.

本実施形態のシールド導電路４０は、実施形態１と同様、１本の電線１１を金属製のパイプ４２内に挿通してなるものである。
パイプ４２の内周４２Ａは、実施形態１と同様、パイプ４２内に挿通された一本の電線１１の外周に沿う円形状をなし、略全周にわたり電線１１の外周に面接触している。 As in the first embodiment, the shield conductive path 40 of the present embodiment is formed by inserting one electric wire 11 into a metal pipe 42.
Similar to the first embodiment, the inner periphery 42A of the pipe 42 has a circular shape along the outer periphery of one electric wire 11 inserted into the pipe 42, and is in surface contact with the outer periphery of the electric wire 11 over substantially the entire periphery.

そして、パイプ４２の外周４２Ｂには、一の突出片４１が設けられ、この突出片４１を介して２本のパイプ４２が連結されている。突出片４１は、２つのパイプ４２の外周４２Ｂから突出してパイプ４２の軸方向に連なる板状をなしている。突出片４１の厚さ寸法は、パイプ４２の厚さ寸法と同等とされている。突出片４１は、両パイプ４２の外周４２Ｂに対して垂直をなし、両パイプ４２の法線（並び方向）に沿う平坦な形状をなしている。   The outer periphery 42 </ b> B of the pipe 42 is provided with one protruding piece 41, and the two pipes 42 are connected via the protruding piece 41. The protruding piece 41 has a plate shape that protrudes from the outer periphery 42 </ b> B of the two pipes 42 and continues in the axial direction of the pipe 42. The thickness dimension of the protruding piece 41 is equal to the thickness dimension of the pipe 42. The protruding piece 41 is perpendicular to the outer periphery 42B of both pipes 42, and has a flat shape along the normal line (alignment direction) of both pipes 42.

このようなシールド導電路４０は、以下のようにして製造される。まず、押し出し成形により、電線１１よりも一回り大きい断面形状を有する２本のパイプ４２を、一の突出片４１で連結した形状に製造し、次いで、実施形態１と同様、２本のパイプ４２内にそれぞれ電線１１を１本ずつ挿通させ、各パイプ４２を、一本の電線１１の外周に沿った形状となるようにそれぞれ変形させることで製造される。   Such a shield conductive path 40 is manufactured as follows. First, two pipes 42 having a cross-sectional shape that is slightly larger than the electric wire 11 are manufactured by extrusion molding into a shape connected by a single protruding piece 41, and then the two pipes 42 as in the first embodiment. Each of the electric wires 11 is inserted through each of the pipes, and each pipe 42 is deformed so as to have a shape along the outer periphery of the single electric wire 11.

以上のように本実施形態に係るシールド導電路４０は、導体１３を絶縁被覆１４で包囲してなる１本の電線１１を金属製のパイプ４２に挿通し、パイプ４２を一本の電線１１の外周に沿う形状としたものであるから、実施形態１と同様、電線１１の熱が効率よくパイプ４２に伝達するので、放熱性を向上することができる。   As described above, in the shield conductive path 40 according to this embodiment, the single wire 11 formed by surrounding the conductor 13 with the insulating coating 14 is inserted into the metal pipe 42, and the pipe 42 is connected to the single wire 11. Since it has a shape along the outer periphery, the heat of the electric wire 11 is efficiently transmitted to the pipe 42 as in the first embodiment, so that the heat dissipation can be improved.

また、パイプ４２の外周４２Ｂに、外方に突出する突出片４１を設けたから、その分パイプ４２の放熱面積が増えるので、さらなる放熱性の向上を図ることができる。
また、突出片４１を介してパイプ４２同士を連結する構成としたから、２本のシールド導電路４０を一体に取り扱うことができる。 Further, since the projecting piece 41 projecting outward is provided on the outer periphery 42B of the pipe 42, the heat radiation area of the pipe 42 is increased accordingly, so that further improvement in heat dissipation can be achieved.
Moreover, since it was set as the structure which connects the pipes 42 via the protrusion piece 41, the two shield conductive paths 40 can be handled integrally.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

（１）上記実施形態では、電線１１の導体１３を撚り線としたが、これに限らず、導体を単芯線としてもよい。
（２）上記実施形態では、パイプ１２（２１）（３１）（４２）の内周１２Ａ（２１Ａ）（３１Ａ）（４２Ａ）を電線１１の外周に面接触させたが、これに限らず、パイプの内周と電線の外周とを非接触、線接触、点接触等いずれの形態としてもよい。また、電線とパイプとの間の隙間に、空気よりも熱伝導率の高い充填材を充填してもよい。
（３）上記実施形態では、ローラ１５を用いてパイプ１２（２１）（３１）（４２）を押圧して変形させたが、どのような方法でパイプを押圧するようにしてもよい。 (1) In the said embodiment, although the conductor 13 of the electric wire 11 was used as the strand wire, it is good not only as this but a conductor as a single core wire.
(2) In the above embodiment, the inner periphery 12A (21A) (31A) (42A) of the pipe 12 (21) (31) (42) is brought into surface contact with the outer periphery of the electric wire 11. The inner circumference and the outer circumference of the electric wire may be in any form such as non-contact, line contact, and point contact. Moreover, you may fill the clearance gap between an electric wire and a pipe with a heat conductivity higher than air.
(3) In the above-described embodiment, the pipe 12 (21) (31) (42) is pressed and deformed using the roller 15, but the pipe may be pressed by any method.

（４）実施形態４では、２本のパイプ４２を連結するようにしたが、これに限らず、３本以上のパイプを連結するようにしてもよい。
（５）実施形態４では、２本のパイプ４２を連結する一の突出片４１のみを設けたが、これに限らず、例えばパイプを連結する突出片の他に、複数の突出片を設けるようにしてもよい。 (4) Although the two pipes 42 are connected in the fourth embodiment, the present invention is not limited to this, and three or more pipes may be connected.
(5) In the fourth embodiment, only one protruding piece 41 for connecting the two pipes 42 is provided. However, the present invention is not limited to this. For example, in addition to the protruding piece for connecting the pipes, a plurality of protruding pieces are provided. It may be.

１０，２０，３０，４０…シールド導電路
１１…電線
１２，２１，３１，４２…パイプ
１２Ａ，２１Ａ，３１Ａ，４２Ａ…パイプの内周
１２Ｂ，２１Ｂ，３１Ｂ，４２Ｂ…パイプの外周
１３…導体
１４…絶縁被覆
２２，３２，４１…突出片 10, 20, 30, 40 ... shield conductive path 11 ... electric wire 12, 21, 31, 42 ... pipe 12A, 21A, 31A, 42A ... inner circumference of pipe 12B, 21B, 31B, 42B ... outer circumference of pipe 13 ... conductor 14 ... Insulation coating 22, 32, 41 ... Projection piece

Claims (5)

導体を絶縁被覆で包囲してなる１本の電線を金属製のパイプに挿通し、
前記パイプを前記一本の電線の外周に沿う形状としたシールド導電路。 Insert a single electric wire that surrounds the conductor with an insulation coating through a metal pipe,
The shield conductive path which made the said pipe the shape along the outer periphery of the said one electric wire. 前記パイプの内周を前記１本の電線の外周に面接触させた請求項１に記載のシールド導電路。   The shield conductive path according to claim 1, wherein an inner periphery of the pipe is in surface contact with an outer periphery of the one electric wire. 前記パイプの外周に、外方に突出する突出片を設けた請求項１または請求項２に記載のシールド導電路。   The shield conductive path according to claim 1, wherein a projecting piece projecting outward is provided on an outer periphery of the pipe. 前記突出片を介して前記パイプ同士を連結する構成とした請求項３に記載のシールド導電路。   The shield conductive path according to claim 3, wherein the pipes are connected to each other through the protruding piece. 導体を絶縁被覆で包囲してなる１本の電線を金属製のパイプに挿通し、
前記パイプを前記一本の電線の外周に沿った形状となるように変形させるシールド導電路の製造方法。 Insert a single electric wire that surrounds the conductor with an insulation coating through a metal pipe,
A method for manufacturing a shield conductive path, wherein the pipe is deformed so as to have a shape along the outer periphery of the one electric wire.
JP2009028794A 2009-02-10 2009-02-10 Shielded conductive path and method for manufacturing shielded conductive path Pending JP2010186601A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006260898A (en) * 2005-03-16 2006-09-28 Auto Network Gijutsu Kenkyusho:Kk Shield conductive line and manufacturing method for sheet-like conductive line

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006260898A (en) * 2005-03-16 2006-09-28 Auto Network Gijutsu Kenkyusho:Kk Shield conductive line and manufacturing method for sheet-like conductive line

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