JP2006024372A - Cable harness and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable harness which ensures properties and durability for being bent and twisted as well as minimizes a potential difference of the outer conductor covering a coaxial cable to the earth, and also to provide a manufacturing method thereof. <P>SOLUTION: The cable harness comprises a wire set 11 that includes a plurality of coaxial cables 1 bound at intermediate points 11a and has connection terminals 10a, 10b at both ends 11b, and a plurality of copper-foil threads that are arranged along the wire set 11. Wherein a plurality of copper-foil threads are bundled into a plurality of copper-foil-thread sets 9 by twisting several single copper-foil threads, the plurality of the copper-foil-thread sets 9 are arranged along the wire set 11 in a bundled state integrally bundled with the wire set 11, or a copper foil thread is arranged in being wound laterally or in a braid structure around the wire set 11. The braid structure may use an alternating woven braid formed by mixing rubber or plastic threads. In addition, the copper-foil threads may electrically connect to the outer conductors of the coaxial cables 1 at intermediate points of the wire set 11 of the coaxial cables 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cable harness having an intermediate portion of an electric wire group including a plurality of coaxial wires and having connection terminals such as an electrical connector and a circuit board at both ends thereof, and a method for manufacturing the same.

  In recent years, with the spread of notebook computers, mobile phones, small video cameras, etc., in addition to the reduction in size and weight of these information communication devices, high-speed data transmission and higher density are required. In these communication devices, the liquid crystal display unit is normally configured to be foldable. For this reason, the electrical connection between the device main unit and the display unit is a wiring structure with rotation. Yes. In general, it is necessary to suppress the occurrence of electromagnetic interference (EMI) between circuits due to electromagnetic waves radiated from signal lines.

  In order to cope with this, a flexible substrate (FPC) that can be bent for circuit mounting and wiring in an apparatus is used. However, in addition to the conventional folding type, recently, an opening / closing / twisting type device has appeared, and generally the wiring length of the FPC becomes long, and it is difficult to minimize the ground potential. For circuit wiring using FPC, a solid ground structure having a ground conductor layer as a ground conductor layer is known as a ground conductor layer for securing a low resistance ground conductor and EMI countermeasures. The bendability is poor at the bent part, and cracks may occur and break.

  For this reason, it is known that slits are made in the ground conductor portion of the rotating portion, or that signal conductors and ground conductors are alternately arranged in a staggered manner to reduce ground conductor performance and ensure flexibility. (For example, refer to Patent Document 1). However, if the number of solid ground conductors is reduced in order to improve flexibility, the resistance value of the ground conductor increases and the ground potential rises, and there is a problem that the impedance mismatch of signals and EMI characteristics deteriorate. The wiring method using the FPC has not provided a satisfactory effective solution.

It is also known that a bending-resistant shielded cable is used in a portion where bending is repeatedly applied to a rotating portion using the FPC (see, for example, Patent Document 2). In the bending-resistant shielded cable disclosed in Patent Document 2, the outer periphery of a cable core obtained by twisting a plurality of counter wires having a shield layer is pressed and wound, a shield layer is provided on the outer periphery, and the outermost layer is covered with a jacket. Configured. And it is supposed that both the shield layer of an electric wire and the shield layer of a cable core can be formed by horizontal winding or a braided structure using a copper foil thread. However, it is only disclosed as a bend-resistant shielded cable, and its usage is not clear.
Japanese Patent Laid-Open No. 2004-88020 Japanese Utility Model Publication No. 5-38712

  In contrast to electrical wiring of rotating parts using FPC, recently, wiring is performed using a cable harness that bundles multiple ultra-thin coaxial wires around the part of a folding device such as a mobile phone that requires opening / closing and twisting. Is being considered. In the wiring system using this cable harness, the bending / twisting performance can be ensured for the time being, and there is no problem with respect to impedance matching and EMI due to the use of a coaxial line. However, since the coaxial wire used is usually a very thin wire having an outer diameter of 1 mm or less, the resistance value of the outer conductor is relatively large, and there is a problem that a potential difference occurs in the ground portion when the wiring length becomes long.

Therefore, in order to reduce the resistance of the outer conductor of the coaxial line, if the outer conductor size of the coaxial line is increased or a double structure is used, the bending / twisting performance deteriorates. Further, an attempt was made to wrap an FPC around the bundled coaxial line, or to cover it with a braided copper wire so as to be parallel, and to provide a low resistance conductor path in parallel with the outer conductor of the coaxial line. However, although the ground potential can be improved, the FPC breaks due to bending and twisting, and the braided conductor using the normal copper wire rubs the copper wire against each other by twisting, and the copper wire is broken. However, satisfactory results with respect to mechanical properties are still not obtained.
The present invention has been made in view of the above-described circumstances, and provides a cable harness that minimizes the ground potential difference of the outer conductor of the coaxial line, and has a performance ensuring and durability against bending and twisting, and a manufacturing method thereof. Is an issue.

  The cable harness according to the present invention is a cable harness in which the middle part of an electric wire group including a plurality of coaxial wires is bundled and has connection terminals at both ends, and a plurality of copper foil yarns are arranged along the electric wire group. Is. A plurality of copper foil yarns are made by twisting several single wires into a collective copper foil yarn, and a plurality of collective copper foil yarns are bundled integrally with the wire group, or are wound horizontally on the outer periphery of the wire group or Arranged in a braided structure. The braided structure may be an unwoven braid in which rubber or plastic yarn is mixed. Moreover, you may make it electrically connect with a copper foil thread | yarn in the intermediate part of the electric wire bundle of a coaxial wire.

  The cable harness manufacturing method according to the present invention includes a multi-core cable having a braided sleeve formed of copper foil thread, then expanding the diameter of the braided sleeve, bundling the middle part of the wire group and having connection terminals at both ends. Then, the diameter of the braided sleeve whose diameter has been increased is reduced, and the copper foil yarn is held outside the electric wire group.

  According to the present invention, impedance matching and EMI characteristics are ensured by the coaxial line, and the ground potential difference between the both ends of the outer conductor of the coaxial line is not impaired by the copper foil thread provided in parallel to the coaxial line. Can be reduced. Further, even if copper foil threads are rubbed against each other by bending and twisting of the cable harness, the cable harness is not easily cut and can have a durable ground conductor.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 (A) is a diagram for explaining an example of an ultrafine coaxial line used in the present invention, FIG. 1 (B) is a diagram for explaining the outline of a copper foil yarn used in the present invention, and FIG. 1 (C) is a copper foil yarn. It is a figure which shows the outline of the aggregate copper foil thread | yarn which bundled two or more. In the figure, 1 is a coaxial line, 2 is a central conductor, 3 is an insulator, 4 is an external conductor, 5 is a jacket, 6 is a copper foil thread, 7 is a high tensile strength fiber, 8 is a copper foil tape, and 9 is an aggregate copper. The foil thread is shown.

  As the coaxial wire 1 of the cable harness according to the present invention, for example, as shown in FIG. 1 (A), a central conductor 2, an insulator 3, an external conductor 4, and a jacket 5 are sequentially arranged coaxially from the inside. Is used. The center conductor 2 is formed, for example, by twisting seven copper alloy wires having an outer diameter of about 0.025 mm, and the outer surface is covered with an insulating material such as Teflon (registered trademark) resin to a thickness of about 0.06 mm. The insulator 3 is used.

  The outer conductor 4 disposed on the outer peripheral surface of the insulator 3 is formed, for example, by winding a copper alloy wire having an outer diameter of about 0.03 mm in a horizontal winding, and a polyester tape having a thickness of about 0.004 mm is formed on the outer surface thereof. A super-coaxial wire 1 having an outer diameter of about 0.3 mm is formed by stacking and fusing each other to form a jacket 5. The outer conductor 4 may have a braided structure instead of horizontal winding, or may have a structure in which a copper vapor-deposited tape is wound around the outer conductor 4. Also, in order to further improve the flexibility, bending and twisting characteristics of the coaxial line, the outer cover 5 may be coated with 0.03 mm thickness from a polyester tape with a Teflon (registered trademark) resin in the same manner as an insulator. is there.

  Moreover, the copper foil thread | yarn distribute | arranged along the electric wire group of the cable harness in this invention is a thing of a shape as shown to FIG. 1 (B). This copper foil thread 6 is used for an earphone, a headphone, a curl cord of a telephone, and the like, and is known as a special conductor for communication having bending strength, flexibility and lightness. Further, as disclosed in Patent Document 2, it is also widely used as a shield conductor for cables.

  The copper foil yarn 6 is generally formed by wrapping a flat wire copper foil tape produced by rolling a round wire around a high tensile strength fiber yarn 7 such as a polyester yarn. As the copper foil material, tin alloy copper or ordinary copper is used, and copper foil yarns 6 having an outer diameter of 0.11 mm and 0.25 mm are generally used. As shown in FIG. 1 (C), the copper foil yarn 6 can be used by twisting a plurality of copper foil yarns as an aggregate copper foil yarn 9. By twisting a plurality of single-wire copper foil yarns 6, The strength can be increased and the resistance value can be lowered.

  FIG. 2 is a diagram for explaining the first embodiment of the present invention. FIG. 2 (A) shows a state in which an electrical connector is connected to both ends of the electric wire group, and FIG. It is a figure which shows the cable harness example which was made. In the figure, 10a and 10b are electrical connectors, 11 is an electric wire group, 11a is an intermediate part, 11b is an end part, 12 is a binding tape, and other reference numerals are the same as those used in FIG. Is omitted.

  The cable harness according to the present invention is intended for a configuration in which electric wires including a plurality of coaxial wires 1 are bundled to form an electric wire group 11 and connection terminals such as electric connectors 10a and 10b are provided at both ends 11b of the electric wire group 11. The coaxial line 1 is a very thin coaxial line as described with reference to FIG. 1A, and the entire wire group 11 may be a coaxial line, but some of the wires other than the coaxial line not having an external conductor are included. It may be included. Moreover, although the electrical connector 10a, 10b is described as an example of the connection terminal, a printed circuit board may be used instead of the electrical connector, and the arrangement state of the wire group terminals so that the electrical connector can be easily attached later. The form which hold | maintained is included.

  The plurality of coaxial wires 1 do not necessarily have the same length. However, for ease of manufacturing, the coaxial wires 1 are aligned in advance in a predetermined length, aligned in a parallel row at a predetermined pitch, and an adhesive tape (not shown) or the like is used. Thus, the electrical connectors 10a and 10b are connected while the arrangement of the coaxial wires 1 is maintained. After connecting the electrical connectors 10a and 10b, the adhesive tape is removed. For example, the electric wire group 11 separated by removing the adhesive tape is bent at an L-shape such that the connecting direction of the electrical connectors 10a and 10b is orthogonal to the longitudinal direction, and the intermediate portion of the electric wire group 11 is separated. 11a is bundled in a round shape with a binding tape 12 or the like. In addition, although the bundling of the intermediate part 11a may be performed over the full length, the form which is partial and intermittent may be sufficient.

  In the cable harness having the above-described configuration, the present invention sets a plurality of aggregate copper foil yarns 9 in parallel along the coaxial line 1 before bundling the electric wire group 11 of the coaxial line 1 as shown in FIG. And bundled together with a plurality of coaxial wires 1 with a binding tape 12. The ends 9a of the multiple copper foil threads 9 are divided into one or more and connected to the ground potential portion of the electrical connectors 10a and 10b, or a separately prepared ground terminal (not shown) is connected. Connect to the ground terminal provided in the device. In addition, although the figure showed the example along the coaxial line 1 with the form of the aggregate copper foil thread | yarn 9 which twisted the multiple copper foil thread | yarn, the untwisted single-wire copper foil thread | yarn is a coaxial line 1 may be bundled so as to be united with the binding tape 12.

  A plurality of aggregate copper foil yarns 9 arranged along the coaxial line 1 can be used as a low-resistance ground conductor connected in parallel to the outer conductor of the coaxial line 1. As a result, even if the harness length between the electrical connectors of the cable harness is long and a difference occurs in the ground potential at both ends of the outer conductor of the coaxial cable, the potential difference is caused by the copper foil ground conductor connected in parallel. Can be minimized (reduced) to a low potential.

  FIG. 3 is a diagram for explaining a second embodiment of the present invention. FIG. 3 (A) shows a state in which the middle part of the electric wire group is bundled, and FIG. 3 (B) shows a copper foil thread arranged in a horizontal winding. FIG. 3C is a diagram illustrating an example of a cable harness, and FIG. 3C is a diagram illustrating an example of a cable harness in which copper foil yarns are arranged in a braid. In the figure, 13 is an insulating tape, 14 is a horizontal wound copper foil, 14a is a copper foil terminal, 15 is a protective tape, 16 is a braided copper foil, and 16a is a copper foil terminal. Description of other reference numerals is omitted by using the same reference numerals as described in FIGS.

  In FIG. 3A, as described in FIG. 2A, after connecting the electrical connectors 10a and 10b to both ends of the wire group 11, the intermediate portion 11a is bundled in a round shape and the insulating tape 13 is wound. Band together. The insulating tape 13 may be the same as the binding tape 12 of FIG. 2, but it is desirable that the insulating tape 13 has electrical insulation, and the form of being wound over almost the entire length of the intermediate portion 11a. preferable.

  Following FIG. 3 (A), as shown in FIG. 3 (B), a plurality of copper foil yarns are wound around the outer periphery of the insulating tape 13 in which the electric wire group 11 is bundled in a horizontal winding structure, and the horizontal winding copper foil 14 Form. Next, the protective tape 15 is wound around the outer surface of the laterally wound copper foil 14 to prevent the laterally wound copper foil 14 from being damaged by an external force, and the handleability during device assembly is improved.

  The end portion 14a of the laterally wound copper foil 14 is bundled in one or a plurality and connected to the ground potential portion of the electrical connectors 10a and 10b, or a separately prepared ground terminal (not shown) is connected, Connect to the ground terminal in the device. In addition, although the horizontal winding copper foil 14 was shown in the example formed in the outer periphery of the insulating tape 13 which bundled the electric wire group 11, it did the horizontal winding directly on the electric wire group 11 without using the insulating tape 13, and the copper foil thread | yarn The electric wire group 11 may be bundled. Even in this case, it is desirable to protect the laterally wound copper foil 14 with the protective tape 15.

  FIG. 3C is a view showing an example in which the horizontal winding copper foil 14 of FIG. 3B is formed of a braided copper foil 16. As in the case of horizontal winding, the braided copper foil 16 is formed by winding a plurality of copper foil yarns in a braided structure around the outer periphery of the insulating tape 13 in which the wire group 11 is bundled. Next, the protective tape 15 is wound around the outer surface of the braided copper foil 16 to prevent the braided copper foil 16 from being damaged by an external force, and the handling property at the time of assembling the equipment is improved.

  The end 16a of the braided copper foil 16 is bundled in one or a plurality and connected to the ground potential portion of the electrical connectors 10a and 10b, or connected to a separately prepared ground terminal and provided in the device. Connect to the ground terminal. As in the case of horizontal winding, the braided copper foil 16 may be formed on the outer periphery of the insulating tape 13 in which the electric wire group 11 is bundled. However, the braided copper foil 16 may be formed directly on the electric wire group 11 without using the insulating tape 13. The electric wire group 11 may be bundled with the copper foil thread. Also in this case, it is desirable to protect the braided copper foil 16 with the protective tape 15.

  The braided copper foil 16 is formed of only the copper foil yarn 6 shown in FIG. 1 (B), and the interwoven weave braided together with high-strength plastic yarn or fiber yarn such as elastic rubber yarn. You may make it form with a structure. By adopting the union braided structure, it is possible to improve the wear resistance and the stretch property between the copper foil yarns of the braided copper foil, and it can be expected to further increase the life.

  The horizontally wound copper foil 14 or the braided copper foil 16 disposed along the coaxial line 1 can be used as a low-resistance ground conductor connected in parallel to the outer conductor of the coaxial line 1. As a result, even if the cable harness is long and there is a difference in ground potential at both ends of the outer conductor of the coaxial line, the potential difference is minimized by the copper foil ground conductor connected in parallel. (Reduces) and can be set to a low potential. Moreover, the horizontal winding copper foil 14 or the braided copper foil 16 can also be utilized as a shield for the entire cable harness.

  FIG. 4 is a diagram for explaining a third embodiment of the present invention. FIG. 4 (A) shows a state in which an electrical connector is connected to both ends of a wire group, and FIG. 4 (B) shows a braided structure of copper foil yarn. It is a figure which shows the example of a cable harness arranged by. In the figure, 10c and 10d are electrical connectors, 17 is an exposed portion of the outer conductor of the coaxial line, and the other reference numerals are the same as those described in FIGS.

  In the third embodiment, the outer conductor of the coaxial line 1 and the copper foil thread are electrically connected at an arbitrary or desired portion of the intermediate portion 11a of the electric wire group 11, and the ground potential difference of the outer conductor of the coaxial line is minimized. Limitation (reduction) and low resistance grounding are performed. FIG. 4 shows an example in which electrical connectors 10c and 10d having shapes different from those in FIG. 2 or FIG. 3 can be used. In addition, the end portion 11b of the electric wire group 11 is not bent into an L shape as shown in FIGS. 2 and 3, and the end portion 11b of the electric wire group is narrowed in a fan shape with the original electrical connector attached. An example in which the intermediate portion 11a is bound is shown. In addition, when the harness length is short with this shape, it is necessary to consider that the length of the coaxial line 1 is different between the center portion and the end side. However, when the harness length is long, it is absorbed by the fan-shaped displacement portion at the end portion. Can be adjusted.

  In this embodiment, as shown in FIG. 4 (A), the outer portion of a desired portion (one or more) in the longitudinal direction is cut open at the intermediate portion 11a of the wire group 11 to expose the internal external conductor. . The external conductor exposed portion 17 may be subjected to a treatment (for example, application of a conductive paint, binding with a flexible conductor, etc.) such that when the wire group 11 is bundled, they are electrically connected and integrated with each other. it can. The electrical connectors 10c and 10d (or the printed circuit board) may be connected either before or after the external conductor exposed portion 17 is formed.

  Subsequently, as shown in FIG. 4B, the braided copper foil 16 is formed in a braided structure on the bundled intermediate portion 11a of the wire group 11, for example, as described in FIG. 3C. . In this case, the electric wire group 11 is not bundled with the insulating tape, but is bundled with the copper foil yarn that is directly braided. Then, the external conductor exposed portion 17 of the coaxial wire 1 formed in advance and the braided copper foil 16 are electrically connected using means such as conductive paint, solder, conductive band, or the like. Thereafter, similarly to the example of FIG. 3C, the protective tape 15 is wound around the outer surface of the braided copper foil 16 to protect the braided copper foil 16 from damage.

  The end 16a of the braided copper foil 16 is bundled in one or a plurality and connected to the ground potential portion of the electrical connectors 10a and 10b, or a ground terminal provided separately by connecting a separately prepared ground terminal. Connect to the terminal. Thereby, the braided copper foil 16 becomes a ground conductor connected in parallel to the outer conductor of the coaxial line 1. Even if the outer conductor of the coaxial line 1 is grounded by the electrical connectors 10a and 10b at both ends to be ground potential, if the harness length between the electrical connectors is long, there is a difference in ground potential between the intermediate portion and the electrical connector. May occur. However, as described above, the coaxial line is electrically connected to the braided copper foil 16 at a desired portion to obtain a ground potential, thereby reducing the ground potential difference as described above.

  FIG. 5 is a diagram for explaining an example of a method for manufacturing a cable harness according to the present invention, which is intended for manufacturing a cable harness having a shape having a braided copper foil as described in FIG. is there. FIG. 5A is a diagram in which a braided sleeve is continuously formed, FIG. 5B is a diagram in which the diameter of the braided sleeve is enlarged and covered on the cable harness, and FIG. FIG. In the figure, reference numerals 20, 20a and 20b denote braided sleeves, 21 denotes a sleeve forming core, and the other reference numerals are the same as those used in FIG.

  In the present invention, first, as shown in FIG. 5 (A), a sleeve core 21 having a predetermined diameter is prepared, and the copper foil yarn as described in FIG. A long braided sleeve 20 is continuously formed by bundling a plurality of bundles and knitting by a normal method. The shape of the braid is the same as that of a normal braid, and is formed by alternately braiding a plurality of copper foil yarns. The crossing angle θ in the longitudinal direction of the braid is preferably 60 ° or more in consideration of stretchability. The sleeve core 21 is extracted from the braided sleeve 20 after knitting and cut into a braided sleeve having a predetermined length.

  Next, as shown in FIG. 5 (B), the braided sleeve 20a cut to a predetermined length uses the stretchability of the braid to reduce the axial length and expand in the radial direction. What is necessary is just to select the magnitude | size of a diameter to expand, circular, and elliptical shape according to the magnitude | size and shape of the cable harness to mount | wear. In the cable harness, the electrical connector 10b is connected to both end portions 11b of the electric wire group 11 including the plurality of coaxial wires 1, and the intermediate portion 11a is bound with the insulating tape 13 or the like.

  Subsequently, the braided sleeve 20a having an enlarged diameter is placed on the cable harness, and as shown in FIG. 5C, the braided sleeve 20a is stretched in the axial direction at an intermediate portion bound by the insulating tape 13. When the braided sleeve 20a having an enlarged diameter is stretched in the axial direction, the braided sleeve 20b covers the substantially entire length of the intermediate portion of the wire group 11 that is elongated and bound by the insulating tape 13 while being reduced in diameter. . The braided sleeve 20b having a reduced diameter is substantially the same as the braided copper foil 16 shown in FIG. The braided sleeve 20b is held so as to be in close contact with the intermediate portion bound by the insulating tape 13, and is protected by winding a protective tape around the outer side thereof.

  According to the method described above, the braided copper foil can be provided relatively easily on the outer periphery of the cable harness having connection terminals such as electric connectors at both ends. Then, the braided copper foil produced on the cable harness in this way is electrically connected in parallel with the outer conductor of the coaxial line, thereby preventing a difference in ground potential at both ends of the coaxial line. it can. In addition, when the braided copper foil produced using the copper foil thread was mounted at a length of 100 mm (0.015Ω) and twisted ± 180 ° by 120,000 times, the braided state was disturbed, but the copper There was no breakage in the foil thread. On the other hand, when the braided conductor formed using a normal annealed copper wire is similarly twisted 13,000 times with a mounting length of 100 mm (0.000045 Ω) and ± 180 °, the braided conductor is separated. As a result, disconnection also occurred and a predetermined twisting characteristic could not be obtained.

It is a figure explaining the example of the coaxial line and copper foil thread | yarn used for the cable harness of this invention. It is a figure explaining the 1st Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 3rd Embodiment of this invention. It is a figure explaining an example of the manufacturing method of the cable harness of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Coaxial wire, 2 ... Center conductor, 3 ... Insulator, 4 ... Outer conductor, 5 ... Outer jacket, 6 ... Copper foil thread, 7 ... High tensile fiber, 8 ... Copper foil tape, 9 ... Aggregate copper foil thread, DESCRIPTION OF SYMBOLS 10a-10d ... Electrical connector, 11 ... Electric wire group, 11a ... Intermediate | middle part, 11b ... End part, 12 ... Bundling tape, 13 ... Insulation tape, 14 ... Horizontal winding copper foil, 14a ... Copper foil terminal, 15 ... Protective tape, 16 ... Braided copper foil, 16a ... Copper foil terminal, 17 ... External conductor exposed part.

Claims (7)

  A cable harness including a plurality of coaxial wires bundled with an intermediate portion of an electric wire group and having connection terminals at both ends, wherein a plurality of copper foil yarns are arranged along the electric wire group, Cable harness.   The copper foil yarn is formed by twisting several single wires into an aggregate copper foil yarn, and a plurality of the aggregate copper foil yarns are bundled integrally with the electric wire group. Cable harness.   The cable harness according to claim 1, wherein the copper foil yarn is arranged in a lateral winding structure on an outer periphery of the electric wire group.   The cable harness according to claim 1, wherein the copper foil yarn is arranged in a braided structure on an outer periphery of the electric wire group.   5. The cable harness according to claim 4, wherein the braided structure is formed by an interwoven braid with rubber or plastic yarn.   The cable harness according to any one of claims 1 to 5, wherein an outer conductor of a coaxial line and the copper foil yarn are electrically connected at one or more intermediate portions of the electric wire group. .   A method of manufacturing a cable harness in which an intermediate portion of an electric wire group including a plurality of coaxial wires is bundled and has connection terminals at both ends, and after forming a braided sleeve with copper foil yarn, the diameter of the braided sleeve is expanded. And covering the outer periphery of a cable harness having connection terminals at both ends of the wire group, and then reducing the diameter of the braided sleeve whose diameter has been increased and holding it outside the wire group. A method for manufacturing a harness.

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