Wire harness

The wire harness design with a metal braided member and pipe configuration enhances electromagnetic wave suppression and connection ease, addressing the challenge of radiation in vehicles with non-iron bodies.

JP7848929B2Active Publication Date: 2026-04-21AUTONETWORKS TECH LTD +2
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
AUTONETWORKS TECH LTD
Filing Date
2025-09-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The challenge of suppressing electromagnetic wave radiation becomes more critical as vehicle bodies transition from iron to carbon materials, necessitating further improvements in wire harness design to manage electromagnetic interference.

Method used

A wire harness configuration featuring an electric wire double-covered by a metal braided member and a metal pipe, where the braided member extends beyond the pipe, allowing easy connection and enhanced electromagnetic wave suppression across a wide frequency range.

Benefits of technology

The double coverage effectively suppresses electromagnetic radiation, maintains flexibility, and simplifies connections, while accommodating material changes in vehicle bodies, such as from iron to carbon.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a wiring harness capable of further suppressing electromagnetic wave radiation.SOLUTION: A wiring harness (11) includes an electric wire (20), a metal braided member (21) that covers the outer periphery of the electric wire along the extending direction of the electric wire, and a metal pipe (22) which both the electric wire and the metal braided member pass through.SELECTED DRAWING: Figure 2
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Description

Technical Field

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[0001] The present disclosure relates to a wire harness.

Background Art

[0002] Conventionally, as a wire harness, there is one including an electric wire, a metal braided member that covers the outer periphery of the electric wire in a first range along the extending direction of the electric wire, and a metal pipe that covers the outer periphery of the electric wire in a second range along the extending direction of the electric wire while being connected to the end of the metal braided member (for example, see Patent Document 1). In such a wire harness, the path of the electric wire is restricted by the metal pipe, and the flexibility of the electric wire is ensured by the metal braided member. Further, in such a wire harness, the radiation of electromagnetic waves is suppressed in a long range in the extending direction of the electric wire by the cooperation of the metal braided member and the metal pipe connected along the extending direction of the electric wire.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, from the viewpoint of vehicle weight reduction, for example, there have been attempts to change the body from iron to carbon. In this case, it becomes difficult for the body to absorb electromagnetic waves, so it is required to further suppress the radiation of electromagnetic waves by the wire harness alone.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide a wire harness capable of further suppressing the radiation of electromagnetic waves.

Means for Solving the Problems

[0006] The wire harness of this disclosure comprises an electric wire, a metal braided member that covers the outer circumference of the electric wire along the direction of extension of the electric wire, and a metal pipe through which both the electric wire and the metal braided member pass. [Effects of the Invention]

[0007] The wire harness of this disclosure can further suppress the emission of electromagnetic waves. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a schematic diagram of a vehicle in one embodiment. [Figure 2] Figure 2 is a partial plan view of a wire harness in one embodiment. [Figure 3] Figure 3 is a cross-sectional view along line 3-3 in Figure 2. [Figure 4] Figure 4 is a partial plan view of the manufacturing process of a wire harness in one embodiment. [Figure 5] Figure 5 is a partial plan view of the manufacturing process of a wire harness in one embodiment. [Figure 6] Figure 6 is a partial plan view of the manufacturing process of a wire harness in one embodiment. [Modes for carrying out the invention]

[0009] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. The wire harness in this disclosure is [1] The device comprises an electric wire, a metal braided member that covers the outer circumference of the electric wire along the direction in which the electric wire extends, and a metal pipe through which both the electric wire and the metal braided member pass.

[0010] In this configuration, the electric wire is double-covered by a metal braided component and a metal pipe. Therefore, electromagnetic radiation can be further suppressed compared to cases where the electric wire is covered only by the metal braided component or only by the metal pipe.

[0011] [2] Preferably, the length of the electric wire in the extending direction in the metal braided member is longer than the length of the electric wire in the extending direction in the metal pipe. With this configuration, the electric wires inside the metal pipe are also covered by the metal braided member in all areas along their extension direction, thus further suppressing electromagnetic wave radiation in all areas. In addition, since the metal braided member extends to the outside of the metal pipe, it becomes easier to connect it to other components.

[0012] [3] Preferably, the end of the electric wire in the extending direction of the metal braided member has a folded portion which is folded back at the end of the electric wire in the extending direction of the metal pipe and connected to the outer surface of the metal pipe.

[0013] According to this configuration, the folded portion of the metal braided member allows for easy connection of the metal braided member to the metal pipe. [4] Preferably, the outer surface of the metal pipe has a painted portion that is painted to indicate that it is for high-voltage power lines, and an unpainted portion where the metal is exposed and the folded portion is connected.

[0014] With this configuration, the painted portion indicates that it is for high-voltage power lines, and the unpainted portion allows the metal braided member to be easily connected to the metal pipe. [5] Preferably, at least one of the metal braided member and the metal pipe is made of an iron-based metal material.

[0015] This configuration suppresses the emission of electromagnetic waves in frequency ranges that become a concern when the material of the vehicle body where the wire harness is installed is replaced from a common iron-based metal material to another material. In other words, when the material of the vehicle body is replaced from a common iron-based metal material to another material, there is a risk that electromagnetic waves in frequency ranges that were absorbed by the body will become less absorbable, raising concerns about the adverse effects of electromagnetic waves in those frequency ranges. In contrast, the emission of electromagnetic waves in those frequency ranges can be suppressed by the wire harness.

[0016] [6] Preferably, the metal braided member and the metal pipe are made of different metal materials. According to this configuration, radiation of electromagnetic waves in a wide frequency band can be suppressed.

[0017] [7] Preferably, the metal braided member is made of a copper-based or aluminum-based metal material, and the metal pipe is made of an iron-based metal material. According to this configuration, radiation of electromagnetic waves in a wide frequency band can be suppressed. Also, when the material of the vehicle body where the wire harness is provided is replaced from a general iron-based metal material to another material, radiation of electromagnetic waves in the frequency band that is a concern can be suppressed. That is, when the material of the vehicle body is replaced from a general iron-based metal material to another material, there is a possibility that electromagnetic waves in the frequency band that were absorbed by the body become difficult to be absorbed, and adverse effects of electromagnetic waves in that frequency band are a concern. In contrast, radiation of electromagnetic waves in that frequency band can be suppressed by the wire harness.

[0018] [8] The metal braided member is a first metal braided member, and preferably includes a second metal braided member that covers the outer periphery of the electric wire in a region different from the first metal braided member along the extending direction of the electric wire, and an exterior member through which both the electric wire and the second metal braided member penetrate.

[0019] According to this configuration, the electric wire can suppress radiation of electromagnetic waves in the region covered by the second metal braided member. [9] Preferably, a fixing member for connecting and fixing the first metal braided member and the second metal braided member is provided.

[0020] According to this configuration, the first metal braided member and the second metal braided member can be easily connected without performing complicated operations such as welding.

[10] Preferably, the length of the electric wire in the extending direction in the first metal braided member is longer than the length of the electric wire in the extending direction in the metal pipe, the end of the electric wire in the extending direction in the first metal braided member has a folded portion that is folded back at the end of the electric wire in the extending direction in the metal pipe and connected to the outer surface of the metal pipe, the end of the electric wire in the extending direction in the second metal braided member has a covering portion that covers the folded portion, and the fixing member is a crimping member that is provided so as to surround the metal pipe, the folded portion and the covering portion with the metal pipe as a base and is crimped and fixed.

[0021] According to this configuration, the electric wire inside the metal pipe is covered by the first metal braided member in its entire length in the direction of extension, thus further suppressing electromagnetic wave radiation in that entire area. Furthermore, the folded portion of the first metal braided member and the covering portion of the second metal braided member are connected to the metal pipe collectively by crimping and fixing the members with the metal pipe as a base. This reduces manufacturing man-hours and allows for a simpler configuration compared to a configuration in which the first metal braided member, the second metal braided member, and the metal pipe are connected at two or more points.

[0022]

[11] Preferably, the metal pipe is provided with a waterproof member that covers the portion to which the folded portion is in contact, the folded portion, the covering portion, and the crimping member together. According to this configuration, the waterproofing member can prevent water from reaching the part of the metal pipe that the folded portion contacts, the folded portion, the covering portion, and the crimping member.

[0023] [Details of the embodiments of this disclosure] Specific examples of the wire harnesses of this disclosure will be described below with reference to the drawings. In each drawing, some parts of the configuration may be exaggerated or simplified for ease of explanation. Also, the dimensional ratios of each part may differ in each drawing. In this specification, "parallel," "orthogonal," and "circular" do not only refer to strictly parallel, orthogonal, or circular cases, but also include cases that are approximately parallel, orthogonal, or circular within the range that achieves the effects of this embodiment. The present invention is not limited to these examples and is intended to include all modifications within the meaning and scope of the claims, as indicated by the claims.

[0024] (Outline configuration of wire harness 10) As shown in Figure 1, the wire harness 10 is installed in a vehicle V, such as a hybrid vehicle or an electric vehicle. The wire harness 10 electrically connects two or more on-board devices. On-board devices are electrical devices installed in the vehicle V. For example, the wire harness 10 electrically connects an inverter M1 installed at the front of the vehicle V to a high-voltage battery M2 installed at the rear of the vehicle V. The wire harness 10 is formed in a long shape so as to extend in the front-rear direction of the vehicle V. For example, the wire harness 10 is routed in the vehicle V such that the middle portion of the wire harness 10 in the direction of extension passes outside the passenger compartment, such as under the floor of the vehicle V.

[0025] The inverter M1 is connected, for example, to a motor (not shown) for wheel drive, which is the power source for the vehicle's movement. The inverter M1 generates AC power from the DC power of the high-voltage battery M2 and supplies that AC power to the motor. The high-voltage battery M2 is, for example, a battery capable of supplying a voltage of several hundred volts.

[0026] (Configuration of wire harness 10) The wire harness 10 includes an electric wire 20. The wire harness 10 includes connectors C1 and C2 attached to both ends of the electric wire 20. One end of the electric wire 20 in the direction of extension is connected to the inverter M1 via connector C1. The other end of the electric wire 20 in the direction of extension is connected to the high-voltage battery M2 via connector C2.

[0027] Furthermore, as shown in Figure 2, the wire harness 10 comprises a first metal braided member 21 as a metal braided member, a metal pipe 22, a second metal braided member 23, an outer covering member 24, a crimping member 25 as a fixing member, and a waterproof member 26.

[0028] (Configuration of the 20 electric wires) As shown in Figure 3, the electric wire 20 has a core wire 20a and an insulating sheath 20b that covers the outer circumference of the core wire 20a. The wire harness 10 of this embodiment has two electric wires 20. The electric wires 20 are high-voltage wires capable of handling high voltage and high current.

[0029] (Configuration of the first metal braided member 21) The first metal braided member 21 covers the outer circumference of the electric wire 20 along the direction of extension of the electric wire 20. In this embodiment, the first metal braided member 21 covers two electric wires 20 together. The first metal braided member 21 suppresses the radiation of electromagnetic waves from the two electric wires 20 together. In this embodiment, the first metal braided member 21 is made of a copper-based metal material with copper as the main component. The first metal braided member 21 is a braided wire in which strands made of copper-based metal material are woven into a cylindrical shape. The first metal braided member 21 can be folded, bundled, widened in diameter, and deformed, and these are schematically illustrated in each figure.

[0030] (Configuration of the metal pipe 22) The metal pipe 22 is through which both the electric wire 20 and the first metal braided member 21 pass. In other words, the metal pipe 22 further covers the outer circumference of the first metal braided member 21 that covers the electric wire 20. The metal pipe 22 in this embodiment is formed in a perfectly circular cylindrical shape. The metal pipe 22 suppresses the radiation of electromagnetic waves from the two electric wires 20 together. The metal pipe 22 is made of a different metal material than the first metal braided member 21. The metal pipe 22 in this embodiment is made of an iron-based metal material with iron as the main component.

[0031] Furthermore, as shown in Figure 2, the outer surface of the metal pipe 22 has a painted portion 22a, which is painted to indicate that it is for high-voltage power lines, and an unpainted portion 22b, where the metal is exposed without paint. The unpainted portion 22b is provided at the end of the metal pipe 22 in the direction of extension. Note that the direction of extension of the metal pipe 22, the direction of extension of the electric wire 20, and the direction of extension of the first metal braided member 21 are the same. Also, the color of the paint on the painted portion 22a in this embodiment is orange. Furthermore, the metal pipe 22 in this embodiment is arranged to pass under the floor of a vehicle V, for example, and regulates the path of the electric wire 20, such as preventing the electric wire 20 from sagging.

[0032] As shown in Figure 4, the length of the first metal braid member 21 is longer than the length of the metal pipe 22. Figure 4 illustrates the first metal braid member 21, etc., during the manufacturing process of the wire harness 10. Although not shown in Figure 4, in this embodiment, the first metal braid member 21 protrudes outward in the direction of extension of the metal pipe 22 at both ends of the metal pipe 22.

[0033] As shown in Figure 5, the extending end of the first metal braided member 21 has a folded portion 21a that is folded back at the extending end of the metal pipe 22 and connected to the outer circumferential surface of the metal pipe 22. Figure 5 illustrates the first metal braided member 21, etc., during the manufacturing process of the wire harness 10 after Figure 4. The folded portion 21a is connected to the unpainted portion 22b of the metal pipe 22.

[0034] (Configuration of the second metal braided member 23) As shown in Figure 2, the second metal braid member 23 covers the outer circumference of the electric wire 20 in a region different from that of the first metal braid member 21, along the direction of extension of the electric wire 20. The first region R1, where the first metal braid member 21 covers the electric wire 20, and the second region R2, where the second metal braid member 23 covers the electric wire 20, overlap in some areas. In this embodiment, the second metal braid member 23 covers both electric wires 20 together. The second metal braid member 23 suppresses the radiation of electromagnetic waves from both electric wires 20 collectively. The second metal braid member 23 in this embodiment is made of a copper-based metal material with copper as the main component. The second metal braid member 23 is a braided wire in which strands made of copper-based metal material are woven into a cylindrical shape. The second metal braid member 23 can be folded, bundled, widened in diameter, and deformed, as schematically shown in each figure.

[0035] (Configuration of exterior component 24) The exterior member 24 is through which both the electric wire 20 and the second metal braid member 23 pass. In other words, the exterior member 24 further covers the outer circumference of the second metal braid member 23 that covers the electric wire 20. The exterior member 24 in this embodiment is a flexible and easily bendable corrugated tube. That is, the exterior member 24 is made of resin and has a bellows shape in which the diameter alternates between large and small in the direction of extension. The exterior member 24 in this embodiment is arranged, for example, in a part that is bent from under the floor of the vehicle V toward the top of the vehicle V.

[0036] As shown in Figure 4, the length of the second metal braid member 23 is longer than the length of the exterior member 24. Although not shown in Figure 4, in this embodiment, the second metal braid member 23 protrudes outward in the direction of extension of the exterior member 24 at both ends of the exterior member 24.

[0037] As shown in Figure 6, the extending end of the second metal braid member 23 has a covering portion 23a that covers the folded portion 21a. The covering portion 23a is widened in diameter on the outside of the outer covering member 24 and is positioned to cover the folded portion 21a. Figure 6 illustrates the first metal braid member 21 and the second metal braid member 23, etc., during the manufacturing process of the wire harness 10 after Figure 5.

[0038] (Configuration of crimping member 25) As shown in Figure 2, the crimping member 25 connects and fixes the first metal braided member 21 and the second metal braided member 23. More specifically, the crimping member 25 is made of a metal ring. The crimping member 25 is provided so as to surround the metal pipe 22, the folded portion 21a, and the covering portion 23a, using the metal pipe 22 as a base, and is crimped and fixed. That is, the folded portion 21a and the covering portion 23a are sandwiched between the metal pipe 22 and the crimping member 25, and are electrically connected to the metal pipe 22. The area where the first region R1 and the second region R2 overlap is the area where the covering portion 23a covers the folded portion 21a.

[0039] (Configuration of waterproofing member 26) The waterproofing member 26 covers the portion of the metal pipe 22 that the folded portion 21a contacts, namely the unpainted portion 22b, the folded portion 21a, the covered portion 23a, and the crimping member 25. In this embodiment, the waterproofing member 26 is made of an elastic material such as rubber and is formed in a cylindrical shape. One end 26a of the waterproofing member 26 in the extending direction is positioned to cover the outer circumference of the painted portion 22a of the metal pipe 22, and the other end 26b in the extending direction is positioned to cover the outer circumference of the exterior member 24. The waterproofing member 26 is fixed in close contact with the outer circumference of the painted portion 22a of the metal pipe 22 by tightening the outer circumference of one end 26a with a resin cable tie 27. The waterproofing member 26 is also fixed in close contact with the outer circumference of the exterior member 24 by tightening the outer circumference of the other end 26b with a resin cable tie 28.

[0040] Next, we will explain the operation of the wire harness 10 configured as described above. The portion of the electric wire 20 corresponding to the metal pipe 22 is covered by the metal pipe 22 and the first metal braided member 21, thereby suppressing the emission of electromagnetic waves. In addition, the portion of the electric wire 20 corresponding to the outer sheath member 24 is covered by the second metal braided member 23, thereby suppressing the emission of electromagnetic waves.

[0041] Next, the effects of the above embodiment are described below. (1) The electric wire 20 is double-covered by the first metal braided member 21 and the metal pipe 22. Therefore, compared to cases where the electric wire 20 is covered only by the first metal braided member 21 or only by the metal pipe 22, the emission of electromagnetic waves can be further suppressed.

[0042] (2) The length of the electric wire 20 in the extending direction within the first metal braided member 21 is longer than the length of the electric wire 20 in the extending direction within the metal pipe 22. As a result, the electric wire 20 inside the metal pipe 22 is covered by the first metal braided member 21 in all areas in its extending direction, thereby further suppressing the emission of electromagnetic waves in all areas. In addition, since the first metal braided member 21 extends to the outside of the metal pipe 22, it becomes easier to connect it to other members, for example.

[0043] (3) The end of the electric wire 20 in the extending direction of the first metal braided member 21 has a folded portion 21a which is folded back at the end of the electric wire 20 in the extending direction of the metal pipe 22 and connected to the outer surface of the metal pipe 22. This allows the first metal braided member 21 to be easily connected to the metal pipe 22 by the folded portion 21a.

[0044] (4) The outer surface of the metal pipe 22 has a painted portion 22a that is painted to indicate that it is for high-voltage power lines, and an unpainted portion 22b where the metal is exposed and the folded portion 21a is connected. This allows the painted portion 22a to indicate that it is for high-voltage power lines, and the unpainted portion 22b to easily connect the folded portion 21a of the first metal braided member 21 to the metal pipe 22.

[0045] (5) The first metal braided member 21 is made of a copper-based metal material, and the metal pipe 22 is made of an iron-based metal material. In this way, since the first metal braided member 21 and the metal pipe 22 are made of different metal materials, the radiation of electromagnetic waves across a wide frequency range can be suppressed. Furthermore, for example, if the material of the body of the vehicle V on which the wire harness 10 is installed is replaced from a common iron-based metal material to a carbon or aluminum-based material, the radiation of electromagnetic waves in the frequency range that was absorbed by the body may become less absorbable, and the adverse effects of electromagnetic waves in that frequency range may be a concern. In contrast, the radiation of electromagnetic waves in that frequency range can be suppressed by the metal pipe 22 made of an iron-based metal material.

[0046] (6) The electric wire 20 can suppress the emission of electromagnetic waves in the region covered by the second metal braid member 23. (7) Because it is equipped with a crimping member 25 that connects and fixes the first metal braided member 21 and the second metal braided member 23, the first metal braided member 21 and the second metal braided member 23 can be easily connected without performing complicated work such as welding.

[0047] (8) The folded portion 21a of the first metal braided member 21 and the covering portion 23a of the second metal braided member 23 are connected to the metal pipe 22 collectively by a crimping member 25 crimping and fixing it with the metal pipe 22 as a base. This reduces the number of manufacturing steps and allows for a simpler configuration compared to, for example, a configuration in which the first metal braided member 21, the second metal braided member 23, and the metal pipe 22 are connected at two or more points.

[0048] (9) The waterproof member 26 prevents the portion of the metal pipe 22 that the folded portion 21a contacts, the folded portion 21a, the covering portion 23a, and the crimping member 25 from being exposed to water. In this embodiment, the first metal braided member 21 and the metal pipe 22 are made of different metal materials, but by preventing them from being exposed to water, galvanic corrosion is prevented.

[0049] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically. In the above embodiment, the length of the first metal braided member 21 in the extending direction is longer than the length of the metal pipe 22 in the extending direction, and the end of the first metal braided member 21 has a folded portion 21a that is folded back and connected to the outer circumferential surface of the metal pipe 22, but the embodiment is not limited to this.

[0050] For example, the length of the first metal braided member 21 in the extending direction may be shorter than the length of the metal pipe 22 in the extending direction. Also, for example, the end of the first metal braided member 21 does not have to have a folded portion 21a. For example, the first metal braided member 21 may be configured to be connected to the inner circumferential surface of the metal pipe 22.

[0051] In the above embodiment, the outer surface of the metal pipe 22 is assumed to have a painted portion 22a and an unpainted portion 22b, but it is not limited to this. For example, the metal pipe 22 may be configured without a painted portion 22a. Also, for example, the first metal braided member 21 may be connected to the inner surface of the metal pipe 22, and the outer surface of the metal pipe 22 may be entirely painted 22a without any unpainted portion 22b.

[0052] In the above embodiment, the first metal braided member 21 is made of a copper-based metal material and the metal pipe 22 is made of an iron-based metal material, but these may be made of other metal materials. For example, the first metal braided member 21 may be made of an aluminum-based metal material with aluminum as the main component. Alternatively, the first metal braided member 21 may be made of an iron-based metal material. Alternatively, the metal pipe 22 may be made of an aluminum-based metal material. Alternatively, the metal pipe 22 may be made of a copper-based metal material. Furthermore, the combination of metal materials constituting the first metal braided member 21 and the metal pipe 22 may be changed in any way.

[0053] In the above embodiment, the wire harness 10 is configured to include a second metal braid member 23, but it is not limited to this, and may be configured without the second metal braid member 23. Also, in the above embodiment, the second metal braid member 23 is made of a copper-based metal material, but it is not limited to this, and may be made of other metal materials. For example, the second metal braid member 23 may be made of an aluminum-based metal material. Also, for example, the second metal braid member 23 may be made of an iron-based metal material.

[0054] In the above embodiment, the wire harness 10 is configured to include an outer covering member 24, but it is not limited to this, and may be configured without an outer covering member 24. Also, in the above embodiment, the outer covering member 24 is a corrugated tube, but it is not limited to this, and may be other outer covering members.

[0055] In the above embodiment, a crimping member 25 is provided as a fixing member to connect and fix the first metal braided member 21 and the second metal braided member 23, but the embodiment is not limited to this. For example, a C-shaped C-ring or a metal cable tie may be used as a fixing member to connect and fix the first metal braided member 21 and the second metal braided member 23. Alternatively, for example, the first metal braided member 21 and the second metal braided member 23 may be connected and fixed by welding without providing a fixing member such as a crimping member 25.

[0056] In the above embodiment, the crimping member 25 is crimped and fixed using the metal pipe 22 as a base, but the invention is not limited to this, and for example, it may be configured to be crimped and fixed using a separate base ring as a base.

[0057] In the above embodiment, the wire harness 10 is provided with a waterproof member 26, but it is not limited to this, and it may be configured without a waterproof member 26. Also, the waterproof member 26 may be changed to another configuration, such as a heat-shrinkable tube, as long as it can collectively prevent water from getting into the part of the metal pipe 22 that the folded portion 21a contacts, the folded portion 21a, the covering portion 23a, and the crimping member 25.

[0058] In the above embodiment, the wire harness 10 is assumed to have two wires 20, but it is not limited to this, and the number of wires 20 in the wire harness 10 may be one or three or more.

[0059] In the above embodiment, the first metal braid member 21 covers two electric wires 20 together, but it is not limited to this, and each of the multiple electric wires 20 may be covered individually. That is, the wire harness 10 may have multiple first metal braid members 21 depending on the number of electric wires 20.

[0060] In the above embodiment, the second metal braid member 23 covers two electric wires 20 together, but it is not limited to this, and may cover each of multiple electric wires 20 individually. In other words, the wire harness 10 may have multiple second metal braid members 23 depending on the number of electric wires 20.

[0061] In the above embodiment, the electric wire 20 is a high-voltage electric wire, but it is not limited to this, and for example, the electric wire 20 may be a low-voltage electric wire. In the above embodiment, the metal pipe 22 is assumed to be arranged to pass under the floor of the vehicle V, but it is not limited to this and may be arranged in other parts of the vehicle V.

[0062] As used in this disclosure, the phrase "at least one" means "one or more" of the desired options. For example, if there are two options, the phrase "at least one" means "only one option" or "both of the two options." As another example, if there are three or more options, the phrase "at least one" means "only one option" or "any combination of two or more options." [Explanation of Symbols]

[0063] 10 Wire Harnesses 20 Electric wire 20a core wire 20b Insulation coating 21. First metal braided member (metal braided member) 21a Folded section 22 Metal pipes 22a Painted section 22b Unpainted parts 23 Second Metal Braided Member 23a Covering part 24 Exterior components 25 Crimping members (fixing members) 26 Waterproofing materials 26a End 26b End 27 Cable ties 28 Cable ties C1 Connector C2 connector M1 Inverter M2 High-Voltage Battery R1 1st area R2 2nd area V Vehicle

Claims

1. Power lines and, A metal braided member that covers the outer circumference of the electric wire along the direction in which the electric wire extends, The system comprises a metal pipe through which both the electric wire and the metal braided member pass, The end of the electric wire in the extending direction of the metal braided member has a folded portion which is folded back at the end of the electric wire in the extending direction of the metal pipe and connected to the outer surface of the metal pipe. The outer surface of the metal pipe has a painted portion that is painted to indicate that it is for high-voltage power lines, and an unpainted portion where the metal is exposed and the folded portion is connected. Wire harness.

2. The length of the electric wire in the extending direction in the metal braided member is longer than the length of the electric wire in the extending direction in the metal pipe. The wire harness according to claim 1.

3. At least one of the aforementioned metal braided member and the aforementioned metal pipe is made of an iron-based metal material. The wire harness according to claim 1.

4. The aforementioned metal braided member and the aforementioned metal pipe are made of different metal materials. The wire harness according to claim 1.

5. The aforementioned metal braided member is made of a copper-based or aluminum-based metal material. The aforementioned metal pipe is made of an iron-based metal material. The wire harness according to claim 1.

6. The aforementioned metal braided member is the first metal braided member, A second metal braided member covers the outer circumference of the electric wire in a region different from the first metal braided member along the direction in which the electric wire extends, The system comprises an outer covering member through which both the electric wire and the second metal braided member pass. The wire harness according to claim 1.

7. The device includes a fixing member that connects and fixes the first metal braided member and the second metal braided member, The wire harness according to claim 6.

8. The length of the electric wire in the extending direction in the first metal braided member is longer than the length of the electric wire in the extending direction in the metal pipe. The end of the electric wire in the extending direction of the first metal braided member has a folded portion which is folded back at the end of the electric wire in the extending direction of the metal pipe and connected to the outer surface of the metal pipe. The end of the electric wire in the extending direction of the second metal braided member has a covering portion that covers the folded portion, The fixing member is a crimping member that is provided so as to surround the metal pipe, the folded portion, and the covering portion, with the metal pipe as its base, and is crimped and fixed in place. The wire harness according to claim 7.

9. The metal pipe is provided with a waterproof member that covers the portion to which the folded portion is in contact, the folded portion, the covering portion, and the crimping member together. The wire harness according to claim 8.

Citation Information

Patent Citations

  • Shielded conductive path

    JP2006310516A

  • Electric wire protection material and wiring harness

    WO2017110512A1

  • Braid processing device and method for processing braided cable

    WO2018198877A1

  • Wire harness

    WO2021084780A1

  • Wire harness

    WO2021172114A1