Wire harness

The wire harness design with conductive nonwoven fabric tapes and sheets addresses cost and flexibility issues by allowing adjustable shielding, reducing costs and accommodating specification changes effectively.

JP2025117201APending Publication Date: 2025-08-12YAZAKI CORP
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Patent Information

Application Number
JP2024011930
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-30
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

Conventional wire harnesses with metal braids face increased costs due to specialization for specific wire sizes and shielding requirements, and are inflexible in accommodating specification changes or environmental shielding needs.

Method used

A wire harness design incorporating conductive nonwoven fabric tapes and sheets wrapped around electric wires with varying numbers of windings at specific locations, allowing for adjustable shielding performance and cost-effective adaptability.

Benefits of technology

Enables cost reduction and flexible specification accommodation while providing appropriate shielding performance based on environmental needs, without the need for dedicated products.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a wire harness capable of easily suppressing cost, flexibly responding to specification change and easily exhibiting suitable shield performance responding to environment.SOLUTION: A wire harness 1 includes: a plurality of wires 10; and a conductive nonwoven fabric tape 20 or conductive nonwoven fabric sheet 30 including a nonwoven fabric and a plating part consisting of conductive metal covered on fibers constituting the nonwoven fabric and wound around the specific place SP of the plurality of electric wires 10. The conductive nonwoven fabric tape or the conductive nonwoven fabric sheet is wound at a winding frequency of 1 or more on the plurality of electric wires 10 and has places wound at different winding frequencies.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a wire harness. [Background technology]

[0002] Conventionally, wire harnesses have been proposed that include a shielding section that protects multiple electric wires and surrounding devices from noise. For example, such wire harnesses use a metal braid whose size and density are set according to the size of the electric wires and the required shielding performance. Also proposed is a wire harness in which an outer sheath made of an insulator is provided around the metal braid (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-206527 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the wire harnesses described in Patent Document 1 require various types of metal braids to accommodate various wire sizes and shielding performance requirements, and the metal braids are specialized for each wire harness, which poses a problem of increased costs due to the specialized metal braids.

[0005] Furthermore, if it is discovered after the manufacture of a wire harness that the shielding performance is not satisfactory at the location where the wire harness is routed, it becomes necessary to change the entire metal braid, i.e., the entire wire harness. The same applies if, after the wire harness is routed, a change in the on-board equipment on the vehicle makes the shielding performance no longer satisfactory. As such, the wire harness described in Patent Document 1 has a problem in that it is difficult to accommodate specification changes because the metal braid is a specialized product.

[0006] Furthermore, when a specific location in a wire harness requires a higher level of shielding than other locations, it is difficult to achieve this with a metal braid, which makes it difficult to achieve appropriate shielding performance depending on the environment.

[0007] The present invention has been made to solve such conventional problems, and an object of the present invention is to provide a wire harness that can easily reduce costs, can flexibly accommodate specification changes, and can easily exhibit appropriate shielding performance according to the environment. [Means for solving the problem]

[0008] A wire harness according to the present invention comprises a plurality of electric wires, a nonwoven fabric, and a plated portion made of a conductive metal coated on fibers constituting the nonwoven fabric, the conductive nonwoven fabric being wrapped around specific locations of the plurality of electric wires, wherein the conductive nonwoven fabric is wrapped around the plurality of electric wires with one or more windings and has locations where the conductive nonwoven fabric is wound with different numbers of windings. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a wire harness that can easily reduce costs, can flexibly accommodate changes in specifications, and can easily exhibit appropriate shielding performance according to the environment. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a plan view showing a wire harness according to an embodiment of the present invention. [Figure 2] 2A and 2B are cross-sectional views showing details of the conductive nonwoven fabric tape shown in FIG. 1, where (a) shows a cross section perpendicular to the longitudinal direction of the tape, and (b) shows an enlarged view of a part thereof. [Figure 3] 2 is a cross-sectional view showing the details of the conductive nonwoven fabric sheet shown in FIG. 1, showing a cross section perpendicular to the longitudinal direction of the sheet. FIG. [Figure 4]FIG. 2 is a cross-sectional view showing the details of the resin tape member shown in FIG. 1, showing a cross section perpendicular to the tape longitudinal direction. [Figure 5] FIG. 2 is a cross-sectional view of the VV shown in FIG. [Figure 6] 6 is a cross-sectional view taken along the line VI-VI shown in FIG. [Figure 7] 7 is a cross-sectional view taken along the line VII-VII shown in FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. [Figure 9] 9 is a cross-sectional view taken along the line IX-IX in FIG. [Figure 10] 2 is a cross-sectional view along the line XX shown in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0011] The present invention will be described below in accordance with preferred embodiments. Note that the present invention is not limited to the embodiments shown below and can be modified as appropriate without departing from the spirit of the present invention. In addition, in the embodiments shown below, some components are omitted from illustration and description, but it goes without saying that publicly known or well-known technologies are applied as appropriate to the details of the omitted technologies within the scope of the content described below.

[0012] Fig. 1 is a plan view showing a wire harness according to an embodiment of the present invention. As shown in Fig. 1, the wire harness 1 according to the embodiment includes a plurality of electric wires 10. In the following description, the number of electric wires 10 will be described as four, but the number of electric wires 10 is not particularly limited to four.

[0013] Each electric wire 10 includes a conductor made of, for example, copper, aluminum, or an alloy thereof, and an insulating coating that covers the conductor. The conductor of the electric wire 10 according to this embodiment may be a stranded wire made by twisting together a plurality of conductive wires, or may be a single solid wire. The coating may be made of PVC (Polyvinyl Chloride), PP (Polypropylene), PE (Polyethylene), or the like. However, the coating is not limited to these materials, and may also be made of silicone, polyurethane, nylon, or the like.

[0014] The wire harness 1 having such an electric wire 10 includes, for example, a connector C at a terminal portion T. Although not shown, the wire harness 1 may also include a separate outer layer member such as a corrugated tube, or may include other members.

[0015] Furthermore, the wire harness 1 has a conductive nonwoven fabric tape (conductive nonwoven fabric) 20 shown in FIG. 2, a conductive nonwoven fabric sheet (conductive nonwoven fabric) 30 shown in FIG. 3, and a resin tape member 40 shown in FIG. 4, which bundle together multiple electric wires 10.

[0016] 1, the wire harness 1 has one or more specific locations SP where a shielding effect should be exhibited, and at least one of a conductive nonwoven fabric tape 20 and a conductive nonwoven fabric sheet 30 is wrapped around the specific locations SP. In addition, the wire harness 1 is wrapped around one or more predetermined locations DP where there is little need for shielding, etc., with a resin tape member 40 to bundle together a plurality of electric wires 10.

[0017] More specifically, the wire harness 1 has a conductive nonwoven fabric tape 20 wound around it at a first specific location SP1. The first specific location SP1 corresponds to the first terminal portions T1 of the plurality of electric wires 10. The wire harness 1 also has a conductive nonwoven fabric tape 20 and a conductive nonwoven fabric sheet 30 wound around it at a second specific location SP2. The second specific location SP2 corresponds to a branch portion B where the plurality of electric wires 10 are branched in multiple directions (two directions in FIG. 1 ).

[0018] Furthermore, the wire harness 1 has a conductive nonwoven fabric sheet 30 wound around it at a third specific location SP3. The third specific location SP3 is a location located between the branch portion B and a second terminal portion T2, which is one end of the wire harness 1 branched at the branch portion B. In addition, the wire harness 1 has a conductive nonwoven fabric tape 20 wound around it at a fourth specific location SP4. The fourth specific location SP4 corresponds to the second terminal portions T2 of the plurality of electric wires 10.

[0019] The wire harness 1 has a resin tape member 40 wound around a first predetermined position DP1. The first predetermined position DP1 is a position located between the first terminal portion T1 and the branch portion B. The wire harness 1 has a resin tape member 40 wound around a second predetermined position DP2. The second predetermined position DP2 is a position located between the branch portion B and the second terminal portion T2. The second predetermined position DP2 includes the third specific position SP3.

[0020] The wire harness 1 is also wound with a resin tape member 40 at a third predetermined point DP3. The third predetermined point DP3 is a point located between the branch point B and a third terminal portion T3, which is the other end of the wire harness 1 branched at the branch point B.

[0021] In the above description, it is assumed that the conductive nonwoven fabric tape 20 and the resin tape member 40 are wound spirally using half-wrap or the like, but they are not limited to half-wrap or spiral wrapping. The same applies to the conductive nonwoven fabric sheet 30.

[0022] Fig. 2 is a cross-sectional view showing details of the conductive nonwoven fabric tape 20 shown in Fig. 1, where (a) shows a cross section perpendicular to the longitudinal direction of the tape and (b) shows an enlarged portion. As shown in Fig. 2(a), the conductive nonwoven fabric tape 20 comprises a conductive nonwoven fabric 21 and a first adhesive layer 22 provided on one surface (front or back) of the conductive nonwoven fabric 21.

[0023] As shown in FIG. 2(b), the conductive nonwoven fabric 21 is configured with fibers 21a that constitute the nonwoven fabric and plated portions 21b. The nonwoven fabric is a sheet-like member in which the fibers 21a are intertwined without being woven. As shown in FIG. 2(b), due to the manufacturing characteristics of this nonwoven fabric, the fibers 21a are formed as multiple layers in the thickness direction. The fibers 21a that constitute such a nonwoven fabric are configured, for example, from polyethylene terephthalate (PET), PP, nylon, acrylic, glass fiber, carbon fiber, aramid fiber, polyarylate fiber, etc.

[0024] The plated portion 21b is a conductive metal that coats the fibers 21a that make up the nonwoven fabric. This plated portion 21b is made of, for example, copper, nickel, tin, silver, or an alloy of these metals. The plated portion 21b may be formed as a single layer on the fibers 21a that make up the nonwoven fabric, or may be formed as multiple layers. Therefore, the plated portion 21b may be formed, for example, with copper (first layer) and tin (second layer) on the fibers 21a that make up the nonwoven fabric.

[0025] The first adhesive layer 22 is made of a material that exhibits adhesive strength, and the material is not particularly limited. This first adhesive layer 22 is formed across the entire width of the conductive nonwoven fabric tape 20 shown in FIG. 2(a). The first adhesive layer 22 is not limited to the entire width, and may be formed, for example, only on one end in the width direction or only in the center. Furthermore, the first adhesive layer 22 may be formed in the form of multiple stripes along the longitudinal direction, and the shape thereof is not limited.

[0026] Fig. 3 is a cross-sectional view showing details of the conductive nonwoven fabric sheet 30 shown in Fig. 1, showing a cross section perpendicular to the longitudinal direction of the sheet. As shown in Fig. 3, the conductive nonwoven fabric sheet 30 includes a conductive nonwoven fabric 31 and does not include an adhesive layer. The conductive nonwoven fabric 31 is the same as that described with reference to Fig. 2, and is formed by forming metal-plated portions on the fibers that make up the nonwoven fabric.

[0027] Fig. 4 is a cross-sectional view showing details of the resin tape member 40 shown in Fig. 1, showing a cross section perpendicular to the tape longitudinal direction. As shown in Fig. 4, the resin tape member 40 comprises a resin material 41 and a second adhesive layer 42 provided on one surface (front or back) of the resin material 41. The resin material 41 can be, for example, vinyl, but is not particularly limited to this. The second adhesive layer 42 is made of a material that exhibits adhesive force, similar to the first adhesive layer 22, and the material is not particularly limited.

[0028] As described above, the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 include conductive nonwoven fabrics 21, 31. Therefore, a shielding effect is exhibited at specific locations SP of the wire harness 1 where at least one of the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 is wrapped. In particular, the first, second, and fourth specific locations SP1, SP2, and SP4 of the specific locations SP are locations where at least one of the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 is wrapped but where the resin tape member 40 is not wrapped. On the other hand, locations where the resin tape member 40 is wrapped but where the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 are not wrapped, such as the first and third predetermined locations DP1 and DP3 of the wire harness 1, do not require shielding and therefore do not exhibit a shielding effect.

[0029] Here, the wire harness 1 according to this embodiment has the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 wound in one or more turns, and also has portions where they are wound in different turns.

[0030] Fig. 5 is a VV cross-sectional view shown in Fig. 1, and Fig. 6 is a VI-VI cross-sectional view shown in Fig. 1. In the cross-section shown in Fig. 5, the wire harness 1 has the conductive nonwoven fabric tape 20 wound around it two times. That is, the conductive nonwoven fabric tape 20 is wound around the plurality of (four) electric wires 10 two times with the first adhesive layer 22 of the conductive nonwoven fabric tape 20 facing inward. On the other hand, in the cross-section shown in Fig. 6, the wire harness 1 has the conductive nonwoven fabric tape 20 wound around it one time. That is, the conductive nonwoven fabric tape 20 is wound around the plurality of (four) electric wires 10 one time with the first adhesive layer 22 of the conductive nonwoven fabric tape 20 facing inward.

[0031] In this way, the wire harness 1 has the conductive nonwoven fabric tape 20 wound thereon one or more times, and also has portions where the conductive nonwoven fabric tape 20 is wound with different numbers of turns. In particular, as shown in the cross sections of Figures 5 and 6, the wire harness 1 has portions where the conductive nonwoven fabric tape 20 is wound with different numbers of turns within the same first specific location SP1 (see Figure 1). This makes it possible to accommodate cases where the required level of shielding performance differs within the location where shielding performance is required.

[0032] Fig. 7 is a cross-sectional view taken along line VII-VII shown in Fig. 1. In the cross section shown in Fig. 7, the wire harness 1 is wound with the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 wound a total of two times. Note that the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 may be wound more than two times in total.

[0033] More specifically, at the second specific location SP2 (see FIG. 1), the wire harness 1 is configured such that the inner side is made of a conductive nonwoven fabric sheet 30 that does not have an adhesive layer, and the outer side is made of a conductive nonwoven fabric tape 20 that has on one surface a first adhesive layer 22. Therefore, the conductive nonwoven fabric tape 20 is wrapped around the inner conductive nonwoven fabric sheet 30 such that the first adhesive layer 22 faces the conductive nonwoven fabric sheet 30.

[0034] In this way, at the second specific location SP2, the inside is the conductive nonwoven fabric sheet 30 and the outside is the conductive nonwoven fabric tape 20, so compared to the cross section of the first specific location SP1 shown in Figure 5, the diameter of the wire harness 1 can be reduced by the thickness of the first adhesive layer 22 (one layer).

[0035] Fig. 8 is a cross-sectional view taken along line VIII-VIII in Fig. 1. Note that Fig. 8 shows a cross section of only one side branched at branch portion B. As shown in Fig. 8, one side of the branched wires has two electric wires 10 wound with a conductive nonwoven fabric tape 20 and a conductive nonwoven fabric sheet 30.

[0036] In this case, the diameter of the wire harness 1 can also be reduced by the thickness of the first adhesive layer 22 compared to when the conductive nonwoven fabric tape 20 is wound twice.

[0037] Fig. 9 is a cross-sectional view taken along line IX-IX shown in Fig. 1. In the cross section shown in Fig. 9, the wire harness 1 is wound with the conductive nonwoven fabric sheet 30 and the resin tape member 40 wound two or more times in total.

[0038] More specifically, at the third specific location SP3 (see FIG. 1), the wire harness 1 is configured such that the inner side is made of a conductive nonwoven fabric sheet 30 that does not have an adhesive layer, and the outer side is made of a resin tape member 40 that has a second adhesive layer 42 on one surface. Therefore, the outer resin tape member 40 is wrapped around the inner conductive nonwoven fabric sheet 30 such that the second adhesive layer 42 faces the conductive nonwoven fabric sheet 30.

[0039] As described above, at the third specific location SP3, the conductive nonwoven fabric sheet 30 is on the inside and the resin tape member 40 is on the outside. Therefore, the wire harness 1 can also form a shielding portion by using the existing resin tape member 40 on the conductive nonwoven fabric sheet 30 without using the conductive nonwoven fabric tape 20. Note that the resin tape member 40 may be wound on the conductive nonwoven fabric tape 20. This can contribute to winding the conductive nonwoven fabric tape 20 more firmly.

[0040] 1 is similar to the cross section shown in FIG. 6 except for the number of electric wires 10, and the conductive nonwoven fabric tape 20 is wound around a plurality (two) of electric wires 10 by one turn. That is, in the wire harness 1, the number of turns of the conductive nonwoven fabric tape 20 at one specific point SP (i.e., part of the first specific point SP1) is greater than the number of turns of the conductive nonwoven fabric tape 20 at another specific point SP (i.e., the fourth specific point SP4). Therefore, even when different shielding performances are required at different locations that are spaced apart, this can be appropriately accommodated.

[0041] Fig. 10 is a cross-sectional view taken along line XX shown in Fig. 1. In the cross section shown in Fig. 10, the wire harness 1 has only the resin tape member 40 wound around a plurality of electric wires 10. In this manner, the wire harness 1 according to this embodiment has only the resin tape member 40 wound around the third predetermined portion DP3 where no shielding is required, without providing the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30. Therefore, when there are portions within one wire harness 1 where shielding is required and portions where no shielding is required, it is possible to appropriately form a shield portion.

[0042] Next, a method for manufacturing the wire harness 1 according to this embodiment will be described. First, a plurality of electric wires 10 are prepared, and connectors C and the like are connected to them. Next, for example, only the conductive nonwoven fabric tape 20 is wound one or more times around a location where shielding is required (i.e., a specific location SP) when the wire harness is installed in a vehicle. Alternatively, the conductive nonwoven fabric tape 20 may be wound on a conductive nonwoven fabric sheet 30. Furthermore, a resin tape member 40 may be wound around the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30.

[0043] In particular, in areas where shielding is highly required, such as the terminal portion T and the branch portion B, the number of turns of the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 is made larger than in other areas (for example, the third specific area SP3). This makes it possible to appropriately accommodate different shielding requirements within one wire harness 1.

[0044] On the other hand, in areas where shielding is not required, a resin tape member 40 is wound to bundle multiple electric wires 10. Note that other bundling members may be provided without winding the resin tape member 40. Furthermore, the resin tape member 40 may be wound on the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30.

[0045] In addition, if the vehicle specifications are changed after the wire harness 1 is manufactured, and a location where the shielding requirement is increased occurs, the location is further wrapped with the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30, and if necessary, the resin tape member 40. Similarly, after the wire harness 1 is routed, the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 is wrapped around the location as necessary.

[0046] As described above, the wire harness 1 according to the present embodiment includes a plurality of electric wires 10 and the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 wound around the specific locations SP of the electric wires 10. Furthermore, the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 is wound with one or more windings, and there are also locations where the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 is wound with different windings. Therefore, the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 can be wound around the specific locations SP where shielding performance is required in the plurality of electric wires 10. Furthermore, since there are locations where the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30 is wound with different windings, if high shielding performance is required in a portion of the specific locations SP, the number of windings can be increased in that portion. As described above, the wire harness 1 according to the present embodiment can adapt to various environments and changes in specifications by changing the number of windings of the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30, and there is no need for a dedicated product. Therefore, it is possible to provide a wire harness 1 that can easily reduce costs, flexibly accommodate specification changes, and easily exhibit appropriate shielding performance according to the environment.

[0047] Furthermore, the wire harness 1 has the conductive nonwoven fabric tape 20 having the first adhesive layer 22 on one surface. Therefore, after the conductive nonwoven fabric sheet 30 is wound, there is no need to wrap the resin tape member 40 around the area where the conductive nonwoven fabric tape 20 is wound, or to tie the area with a cable tie, thereby improving workability.

[0048] Furthermore, at the second specific location SP2 where the conductive nonwoven fabric tape 20 and the conductive nonwoven fabric sheet 30 are wound multiple times, the inner side is made up of the conductive nonwoven fabric sheet 30 and the outer side is made up of the conductive nonwoven fabric tape 20. This allows the conductive nonwoven fabric sheet 30 to be fastened with the conductive nonwoven fabric tape 20. In particular, compared to when all of the multiple wound locations are made up of the conductive nonwoven fabric tape 20, the thickness of the inner conductive nonwoven fabric sheet 30 is reduced by the thickness of the first adhesive layer 22, which allows the diameter of the wire harness to be further reduced.

[0049] Also, there are both areas where the conductive nonwoven fabric tape 20 or the like is wound but the resin tape member 40 is not wound, and areas where the resin tape member 40 is wound but the conductive nonwoven fabric tape 20 or the like is not wound. Therefore, multiple electric wires 10 are bundled together with the conductive nonwoven fabric tape 20 or the like in areas where shielding performance should be exhibited, and multiple electric wires 10 are bundled together with the resin tape member 40 in areas where the requirement for shielding performance is low. Therefore, it is possible to bundle the electric wires 10 in necessary areas and to exhibit appropriate shielding performance in specific areas SP.

[0050] Furthermore, when the resin tape member 40 is wound onto the conductive nonwoven fabric sheet 30, it is possible to wrap multiple electric wires 10 around the conductive nonwoven fabric sheet 30 even if the conductive nonwoven fabric sheet 30 does not have an adhesive layer. Furthermore, when the resin tape member 40 is wound onto the conductive nonwoven fabric tape 20, it is possible to more firmly wrap the conductive nonwoven fabric tape 20 around multiple electric wires 10. In particular, since the resin tape member 40 is also used to bundle electric wires in existing wire harnesses, it is suitable for maintaining the bundled state after bundling. Therefore, by using such a resin tape member 40 on the conductive nonwoven fabric tape 20 or the conductive nonwoven fabric sheet 30, it is possible to appropriately position the shielding portion and bundle the electric wires.

[0051] Furthermore, since there are areas within the same first specific location SP1 where the number of turns of the conductive nonwoven tape 20 is greater than in other areas, even in areas where shielding performance should be exhibited, it is possible to accommodate cases where the level of requirements within that area differs.

[0052] Furthermore, the conductive nonwoven fabric tape 20 is wound around a plurality of specific locations SP, with one specific location SP (part of the first specific location SP1) having a greater number of turns than another specific location SP (fourth specific location SP4). This makes it possible to appropriately respond to cases where different shielding performance is required at different locations that are spaced apart.

[0053] Furthermore, the conductive nonwoven fabric tape 20 (or the conductive nonwoven fabric sheet 30) has a larger number of turns at key parts such as the terminal parts T and the branch parts B. This allows for a larger number of turns at the terminal parts T and the branch parts B, where the shielding effect is generally likely to be unstable, making it easier to exhibit more appropriate shielding performance.

[0054] The present invention has been described above based on the embodiments, but the present invention is not limited to the above embodiments, and modifications may be made within the scope of the spirit of the present invention, and if possible, publicly known or well-known technologies may be combined.

[0055] For example, in the above embodiment, the wire harness 1 includes four electric wires 10, but the number of wires is not limited to four. The number of turns of the conductive nonwoven fabric tape 20 is also not limited to that shown in the drawings. Furthermore, the wire harness 1 may include a plurality of electric wires 10 bundled with the resin tape member 40, and then the conductive nonwoven fabric tape 20 may be provided as an outer layer. [Explanation of symbols]

[0056] 1: Wire harness 10: Electric wire 20: Conductive nonwoven tape (conductive nonwoven fabric) 21a: Fiber 21b: Plated part 22: 1st adhesive layer 30: Conductive nonwoven fabric sheet (conductive nonwoven fabric) 40: Resin tape material 41: Resin material 42:Second adhesive layer B: Branch DP: designated location SP: Specific location T: Terminal part

Claims

1. A plurality of wires; a conductive nonwoven fabric including a nonwoven fabric and a plated portion made of a conductive metal coated on a fiber constituting the nonwoven fabric, the conductive nonwoven fabric being wound around specific locations of the plurality of electric wires; The conductive nonwoven fabric is wound around the plurality of electric wires by one or more turns, and has portions where the conductive nonwoven fabric is wound by different numbers of turns. A wire harness characterized by:

2. The conductive nonwoven fabric is configured to have a conductive nonwoven fabric tape having a first adhesive layer on one surface.

2. The wire harness according to claim 1.

3. the conductive nonwoven fabric is wound around the conductive nonwoven fabric by a conductive nonwoven fabric sheet not having a first adhesive layer on the inside and a conductive nonwoven fabric tape having the first adhesive layer on one surface on the outside, The conductive nonwoven fabric tape is wound on the inner conductive nonwoven fabric sheet so that the first adhesive layer faces the conductive nonwoven fabric sheet.

2. The wire harness according to claim 1.

4. a resin tape member having a resin material and a second adhesive layer provided on one surface of the resin material, the resin tape member being wound around predetermined locations of the plurality of electric wires with the second adhesive layer facing inward; The conductive nonwoven fabric has both a portion where the conductive nonwoven fabric is wound and the resin tape member is not wound, and a portion where the resin tape member is wound and the conductive nonwoven fabric is not wound.

2. The wire harness according to claim 1.

5. The conductive nonwoven fabric further includes a resin tape member having a resin material and a second adhesive layer provided on one surface of the resin material, the resin tape member being wound around the conductive nonwoven fabric with the second adhesive layer facing inward.

2. The wire harness according to claim 1.

6. The conductive nonwoven fabric is formed of a conductive nonwoven fabric tape having a first adhesive layer on one surface, and has a portion in the same specific location where the number of turns of the conductive nonwoven fabric tape is greater than other portions. The wire harness according to claim 4 .

7. the conductive nonwoven fabric is a conductive nonwoven fabric tape having a first adhesive layer on one surface, and is wound around the plurality of electric wires at the plurality of specific locations by one or more turns, The number of turns of the conductive nonwoven fabric tape at one of the specific locations is greater than the number of turns of the conductive nonwoven fabric tape at other specific locations. The wire harness according to claim 4 .

8. The conductive nonwoven fabric has a larger number of turns at terminal portions that are ends of the plurality of electric wires and at least one main portion of a branch portion where the plurality of electric wires branch off than at other portions excluding the main portion. The wire harness according to any one of claims 1 to 6.

Citation Information

Patent Citations

  • Multicore cable

    JP2018206527A