wiring harness

Abstract

One embodiment of the present disclosure provides a wiring harness that can improve the workability during laying. The wiring harness (10) according to one embodiment of the present disclosure comprises: a first electric wire component (20) arranged in alignment with a pipe (90); and a second electric wire component (30) arranged between the first electric wire component (20) and the pipe (90). The second electric wire component (30) comprises: a first section (30A) extending along the first electric wire component (20); a second section (30B) extending along the pipe (90) at a position farther from the first electric wire component (20) than the first section (30A) in the arrangement direction of the pipe (90) and the first electric wire component (20); and a third section (30C) extending between the first section (30A) and the second section (30B). The second conductor of the second electric wire component (30) extends in a manner including the third section (30C).

Description

Technical Field

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

[0002] Patent Document 1 discloses a wiring harness in which high-voltage and low-voltage wires are arranged side by side under the floor of a vehicle. These wires are collectively held by a plurality of clamps. The clamps are fixed to the vehicle and the wiring harness is laid under the floor.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-101462 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] However, multiple wires arranged under the floor sometimes branch and extend midway along their length. In such cases, the branched and extended portions of each wire need to be secured to the vehicle, potentially increasing the number of locations where the wires need to be secured to the vehicle. Therefore, there is room for improvement in the workability of wiring harnesses.

[0008] An object of the present disclosure is to improve workability during wiring of a wire harness.

[0009] Solutions to Problems

[0010] The wiring harness disclosed herein is arranged in a vehicle, and the vehicle is equipped with a pipeline for liquid circulation under the floor. The wiring harness comprises: a first wire component arranged in alignment with the pipeline; and a second wire component arranged between the first wire component and the pipeline, the second wire component comprising: a conductor having rigidity capable of maintaining its own shape; and an insulating covering covering the outer periphery of the conductor, the second wire component comprising: a first section extending along the first wire component; a second section extending along the pipeline at a position farther away from the first wire component than the first section in the arrangement direction of the pipeline and the first wire component; and a third section extending between the first section and the second section, the conductor extending in a manner including the third section.

[0011] Effects of the Invention

[0012] According to the present disclosure, workability during wiring of a wire harness can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram showing the configuration of a wire harness in one embodiment.

[0014] Figure 2 This is a top view of the wiring harness as viewed from the underside of the vehicle floor.

[0015] Figure 3 It is a perspective view showing the configuration of the first electric wire member and the second electric wire member.

[0016] Figure 4 This is a perspective view of the wire-side fixing member.

[0017] Figure 5 yes Figure 2 A cross-sectional view of the wiring harness at section A.

[0018] Figure 6 yes Figure 2 A cross-sectional view of the wiring harness at portion B.

[0019] Figure 7 It is a perspective view showing the structure of the second electric wire member in the first modification.

[0020] Figure 8 This is a plan view of the wire harness in the second modified example as viewed from the underfloor side of the vehicle.

[0021] Figure 9 This is a plan view of the wire harness in the third modified example as viewed from the underfloor side of the vehicle. DETAILED DESCRIPTION

[0022] [Description of Embodiments of the Present Disclosure]

[0023] First, embodiments of the present disclosure will be described below.

[0024] The wiring harness disclosed herein,

[0025] [1] Arranged in a vehicle, wherein the vehicle is equipped with a pipeline for liquid circulation under the floor, the wiring harness comprising: a first wire member arranged in alignment with the pipeline; and a second wire member arranged between the first wire member and the pipeline, the second wire member comprising: a conductor having rigidity capable of maintaining its own shape; and an insulating covering covering the outer periphery of the conductor, the second wire member comprising: a first section extending along the first wire member; a second section extending along the pipeline at a position farther from the first wire member than the first section in the arrangement direction of the pipeline and the first wire member; and a third section extending between the first section and the second section, the conductor extending in a manner including the third section.

[0026] When the electric wire member having the portion extending along the first electric wire member and the portion extending along the conduit is laid, if it is difficult for the electric wire member to maintain its shape, there is a possibility that the electric wire member will increase in the fixed portion of the vehicle.

[0027] In this regard, according to the above configuration, the second electric wire member includes a conductor extending to encompass the third section. The conductor has sufficient rigidity to maintain its shape, and thus easily maintains its shape in the third section. Consequently, the second electric wire member need not be fixed to the vehicle in the third section. This improves workability during wiring of the wire harness.

[0028] [2] Preferably, the conductor is a single-core wire in a cylindrical shape.

[0029] According to this configuration, the conductor capable of maintaining its own shape can be simplified in structure.

[0030] [3] Preferably, the conductor is a cylindrical single-core wire with a solid interior.

[0031] According to this configuration, the conductor capable of maintaining its own shape can be simplified in structure.

[0032] [4] Preferably, the second electric wire member is fixed to the first electric wire member in the first section.

[0033] According to this configuration, the second wire member is fixed to the first wire member in the first section extending along the first wire member. Therefore, when the wire harness is fixed to the vehicle in the first section, the number of fixing members and fixing locations used to fix the wire harness to the vehicle can be reduced compared to the case where the first and second wire members are fixed to the vehicle separately. This improves workability during wiring of the wire harness.

[0034] [5] Preferably, the second electric wire member is fixed to the pipe in the second section.

[0035] With this configuration, the second wire member is fixed to the conduit in the second section extending along the conduit. Therefore, when securing the wire harness to the vehicle in the second section, the number of fixing members and locations required to secure the wire harness to the vehicle can be reduced compared to separately securing the conduit and the second wire member to the vehicle. This improves workability during wiring of the wire harness.

[0036] [6] Preferably, a wire-side fixing member is provided, which fixes the first wire member and the second wire member together to a fixing object of the vehicle, and the wire-side fixing member is provided in the first section.

[0037] According to this configuration, since the wire-side fixing member is provided in the first section, the first and second wire members are fixed to the fixing object together in the first section. Therefore, compared to a case where the first and second wire members are fixed to the fixing object separately in the first section, the number of fixing members and fixing locations used to fix the wire harness to the vehicle can be reduced. This improves workability during wiring of the wire harness.

[0038] [7] Preferably, the wire-side fixing member comprises: a main holding portion for holding the first wire member; and a secondary holding portion for holding the second wire member, the main holding portion having a main insertion port opening in a direction perpendicular to the longitudinal direction of the first wire member and capable of inserting the first wire member, the secondary holding portion having a secondary insertion port opening in a direction perpendicular to the longitudinal direction of the second wire member and capable of inserting the second wire member, and when fixed to the fixed object, the secondary insertion port opens in a direction not opposite to the fixed object.

[0039] According to this configuration, the second electric wire member can be attached after the auxiliary holding portion of the wire-side fixing member is fixed to the fixing object while holding the first electric wire member. This improves the workability during wiring of the wire harness compared to fixing the fixing object with an integral component in which the first and second electric wire members are assembled on the fixing member.

[0040] [8] Preferably, a conduit-side fixing member is provided, the conduit-side fixing member fixing the conduit and the second electric wire member together to a fixing object of the vehicle, and the conduit-side fixing member is provided in the second section.

[0041] According to this configuration, since the conduit-side fixing member is provided in the second section, the conduit and the second electric wire member are simultaneously fixed to the fixing object in the second section. Therefore, compared to a case where the conduit and the second electric wire member are fixed to the fixing object separately in the second section, the number of fixing members and fixing locations used to secure the wire harness to the vehicle can be reduced. This improves workability during wiring of the wire harness.

[0042] [9] Preferably, the pipeline side fixing member comprises: a main holding portion for holding the pipeline; and a secondary holding portion for holding the second electric wire member, the main holding portion of the pipeline side fixing member comprises a main insertion port which opens in a direction perpendicular to the longitudinal direction of the pipeline and into which the pipeline can be inserted, the secondary holding portion of the pipeline side fixing member comprises a secondary insertion port which opens in a direction perpendicular to the longitudinal direction of the second electric wire member and into which the second electric wire member can be inserted, and when fixed to the fixed object, the secondary insertion port of the pipeline side fixing member opens in a direction not opposite to the fixed object.

[0043] This configuration allows the second electric wire member to be attached after the secondary retaining portion of the conduit-side fixing member, which is fixed to the fixing object while holding the conduit. This improves the workability of wiring the wire harness compared to fixing the fixing object with a single component in which the conduit and the second electric wire member are assembled.

[0044]

[10] Preferably, when the second electric wire member is installed in a horizontal vehicle, the lowermost portion of the second electric wire member is located above the lowermost portion of the first electric wire member.

[0045] According to this configuration, in a wiring harness laid in a horizontal vehicle, the first wire member is positioned below the second wire member. Thus, the second wire member can be provided to prevent the distance from the ground to the lowest point of the vehicle where the wiring harness is laid, the so-called minimum ground clearance, from decreasing.

[0046]

[11] Preferably, when the second electric wire member is installed in a horizontal vehicle, the lowermost portion of the second electric wire member is located above the lowermost portion of the duct.

[0047] According to this configuration, in a wiring harness laid in a horizontal vehicle, the conduit is positioned below the second wire member. Thus, the second wire member can be provided to prevent the distance from the ground to the lowest point of the vehicle where the wiring harness is laid, the so-called minimum ground clearance, from decreasing.

[0048] [Details of the embodiments of the present disclosure]

[0049] The following is a reference to the attached Figure 1 A specific example of the wiring harness of the present invention is described below. In each drawing, for the sake of convenience, a part of the structure is sometimes enlarged or simplified. In addition, the size ratios of each part are sometimes different in each drawing. In addition, the present disclosure is not limited to these examples, but is shown in the claims, and is intended to include all changes within the meaning and scope equivalent to the claims. "Orthogonal" in this specification includes not only the case of strict orthogonality, but also the case of approximately orthogonality within the range of the effect of the present embodiment.

[0050] (Configuration of Vehicle V)

[0051] Reference Figure 1 and Figure 2 First, a vehicle V in which the wire harness 10 of the present embodiment is laid will be described. The vehicle V is, for example, a hybrid vehicle or an electric vehicle.

[0052] A cylindrical pipe 90, through which fluid flows, is installed under the floor of the vehicle V. The pipe 90 of this embodiment is, for example, a brake pipe that allows brake fluid to flow through it, thereby applying hydraulic pressure to calipers (not shown) of each wheel W, thereby braking each wheel W. The pipe 90 is formed of a metal material such as aluminum.

[0053] Here, Figure 1 The left and right directions in the figure are the front and rear directions of the vehicle. Figure 2 The up and down direction in is the vehicle width direction, Figure 1 The up and down direction in the vehicle is the up and down direction. In the following description, for convenience, the direction extending in the vehicle width direction is referred to as the X-axis direction, the direction extending in the vehicle front-rear direction is referred to as the Y-axis direction, and the direction extending in the vehicle up and down direction is referred to as the Z-axis direction. In addition, the right side in the X-axis direction is simply referred to as the right side, and the left side in the X-axis direction is simply referred to as the left side. In addition, Figure 2 The lower side is the right side, Figure 2 The upper side in the figure is the left side.

[0054] The pipe 90 is routed from the master cylinder 91 to the caliper of each wheel W so that a portion of the pipe 90 in the longitudinal direction passes under the floor of the vehicle V.

[0055] The conduit 90 extends along the Y-axis direction at a position offset to the left from the center in the X-axis direction in the vehicle V, branches at positions corresponding to the wheels W in the Y-axis direction, and extends toward the calipers.

[0056] (Overall Structure of the Wiring Harness 10)

[0057] like Figure 1 and Figure 2 As shown, the wire harness 10 includes a first wire member 20 for electrically connecting a first device M1 and a second device M2 mounted on a vehicle V, and a second wire member 30 for electrically connecting a third device M3 and a fourth device M4. Furthermore, the wire harness 10 includes a wire-side fixing member 40 for fixing the first wire member 20 and the second wire member 30 to the vehicle V, and a plurality of conduit-side fixing members 70 for fixing the conduit 90 and the second wire member 30 to the vehicle V.

[0058] The first electric wire member 20 is laid out from the first device M1 to the second device M2 along the Y-axis direction so that a portion of its longitudinal direction passes under the floor of the vehicle V. The first electric wire member 20 is laid out in parallel with the conduit 90 .

[0059] As an example of the first machine M1 and the second machine M2, the first machine M1 is an inverter located at the front of the vehicle V, and the second machine M2 is a high-voltage battery located at the rear of the vehicle V. The first machine M1, serving as the inverter, is connected to, for example, an electric motor (not shown) that drives the vehicle's wheels and serves as the power source for its travel. The inverter generates AC power from the DC power of the high-voltage battery and supplies this AC power to the electric motor. The second machine M2, serving as the high-voltage battery, is, for example, a battery capable of supplying a voltage of 100 volts or more.

[0060] The second wire member 30 is routed from the third device M3 to the fourth device M4, with a portion of its length passing under the floor of the vehicle V. The second wire member 30 is routed between the first wire member 20 and the conduit 90. As examples of the third device M3 and the fourth device M4, the third device M3 is a relay box located at the front of the vehicle V, and the fourth device M4 is a low-voltage battery located at the rear of the vehicle V. The relay box distributes the voltage of the low-voltage battery to various devices mounted on the vehicle V.

[0061] (Configuration of the First Electric Wire Member 20)

[0062] like Figure 3 As shown, the first electric wire member 20 includes two first electric wires 21 and a metal tube 24 that houses each first electric wire 21. The first electric wire 21 includes a first conductor 22 and a first insulating coating 23 that covers the outer periphery of the first conductor 22.

[0063] The first conductor 22 is a single-core wire having a solid interior and a cylindrical shape. A copper-based, aluminum-based, or other metal material can be used as the material for the first conductor 22. The first conductor 22 is formed, for example, by extrusion molding.

[0064] The cross-sectional shape perpendicular to the longitudinal direction of the first conductor 22, that is, the cross-sectional shape, can be any shape. For example, the cross-sectional shape of the first conductor 22 can be circular, semicircular, polygonal, square, or flat.

[0065] The first insulating coating 23 covers the entire outer peripheral surface of the first conductor 22. The first insulating coating 23 is made of a resin material such as cross-linked polyethylene. The first insulating coating 23 is formed by extrusion molding of the first conductor 22, for example.

[0066] The tube 24 is formed in an elongated cylindrical shape as a whole. The outer diameter of the tube 24 is larger than the outer diameter of the pipeline 90. The tube 24 is a member for protecting the first electric wire 21 from flying objects and water drops, for example.

[0067] A copper-based, aluminum-based, or other metal material can be used as the material of the tube 24. The tube 24 of this embodiment has rigidity sufficient to maintain its shape.

[0068] Here, "rigidity" in this specification refers to the ease with which an object deforms in response to bending forces, etc. Furthermore, "rigidity capable of maintaining its own shape" means that an object is unlikely to sag due to its own weight.

[0069] Furthermore, the first electric wire 21 is not housed entirely in the tube 24 in the longitudinal direction. Instead, the first electric wire 21 is covered near both ends thereof connected to the first device M1 and the second device M2 with an exterior member that is softer than the tube 24. Furthermore, a conductor such as a stranded wire that is softer than the first conductor 22 is connected to the first conductor 22 at these ends. Examples of the exterior member include a sheath and a corrugated tube.

[0070] (Configuration of the Second Electric Wire Member 30)

[0071] like Figure 3 As shown, the second wire member 30 includes a second wire 31 and a corrugated tube 34 that houses the second wire 31. The second wire 31 includes a second conductor 32 and a second insulating coating 33 that covers the outer periphery of the second conductor 32. The second conductor 32 is an example of a conductor. The second insulating coating 33 is an example of an insulating coating.

[0072] (Configuration of the Second Electric Wire Member 30)

[0073] like Figure 3 As shown, the second electric wire member 30 includes a second electric wire 31 and a corrugated tube 34 that accommodates the second electric wire 31. The second electric wire 31 includes a second conductor 32 and a second insulating coating 33 that covers the outer periphery of the second conductor 32. The second insulating coating 33 is an example of an insulating coating.

[0074] The second conductor 32 is a single-core wire with a solid interior and a cylindrical shape. Metal materials such as copper and aluminum can be used as the material for the second conductor 32. The second conductor 32 of this embodiment has sufficient rigidity to maintain its shape. The second conductor 32 is formed, for example, by extrusion.

[0075] The cross-sectional shape perpendicular to the longitudinal direction of the second conductor 32, that is, the cross-sectional shape, can be any shape. For example, the cross-sectional shape of the second conductor 32 can be circular, semicircular, polygonal, square, or flat.

[0076] The second insulating coating 33 covers the entire outer circumference of the second conductor 32. The second insulating coating 33 is made of a resin material such as cross-linked polyethylene. The second insulating coating 33 can be formed by extrusion molding the second conductor 32, for example.

[0077] The corrugated tube 34 is, for example, generally cylindrical, surrounding the outer circumference of the second electric wire 31. The corrugated tube 34 has a corrugated structure with annular protrusions 34a and annular recesses 34b alternately arranged continuously along its length. The corrugated tube 34 of this embodiment is made of a non-conductive resin material such as polyolefin, polyamide, polyester, or ABS resin.

[0078] The outer diameter of the corrugated tube 34, that is, the outer diameter of the annular protrusion 34a, is smaller than the outer diameters of the conduit 90 and the tube 24 of the first wire member 20. Therefore, the outer diameter of the second wire 31 is smaller than the outer diameters of the conduit 90 and the tube 24 of the first wire member 20.

[0079] like Figure 2 As shown, the second electric wire member 30 includes a first section 30A extending along the first electric wire member 20, and a second section 30B extending along the conduit 90 at a position farther from the first electric wire member 20 than the first section 30A in the arrangement direction of the conduit 90 and the first electric wire member 20. Furthermore, the second electric wire member 30 includes a third section 30C extending between the first section 30A and the second section 30B.

[0080] In this embodiment, a first section 30A is provided on the front side of the vehicle V, and a second section 30B is provided on the rear side of the vehicle V. A third section 30C is located between the front and rear wheels W in the Y-axis direction. The third section 30C extends obliquely so as to be located more leftward toward the rear side of the vehicle V.

[0081] Furthermore, the bellows 34 of the present embodiment extends at least in the first section 30A, the second section 30B, and the third section 30C.

[0082] A conductor such as a stranded wire that is softer than the second conductor 32 is connected to the second conductor 32 near both ends of the second electric wire 31 connected to the third device M3 and the fourth device M4 .

[0083] (Configuration of Wire-Side Fixing Member 40)

[0084] like Figure 4 and Figure 5 As shown, the wire-side fixing member 40 includes a fixing portion 41 fixed to the assembly surface Pa of the panel P, which constitutes the floor portion of the vehicle V; a main retaining portion 51 that retains the first wire member 20; and a secondary retaining portion 61 that retains the second wire member 30. The main retaining portion 51 and the secondary retaining portion 61 are integrally provided on both sides of the fixing portion 41 in the X-axis direction. The wire-side fixing member 40 is a resin molded article formed by injection molding. The panel P is an example of a fixed object.

[0085] The wire-side fixing member 40 fixes the first wire member 20 and the second wire member 30 together to the panel P in the first section 30A. The wire-side fixing member 40 fixes the second wire member 30 to the first wire member 20 in the first section 30A.

[0086] like Figure 5 As shown, the assembly surface Pa of the panel P is configured to be substantially horizontal when the vehicle V is in a horizontal state. A column portion Pb, for example, formed of a stud bolt, projects vertically from the assembly surface Pa.

[0087] like Figure 4 and Figure 5 As shown, an insertion hole 42 into which the post portion Pb is inserted is formed on the upper surface of the fixing portion 41. Furthermore, a pair of contact portions 43 are protrudingly provided around the insertion hole 42 on the upper surface of the fixing portion 41 to contact the assembly surface Pa. The contact portions 43 face each other across the insertion hole 42.

[0088] The fixing portion 41 has a plurality of locking pieces 44 that lock in the protruding direction of the pillars Pb inserted into the fixing portion 41 through the insertion hole 42. The locking pieces 44 lock with the pillars Pb, thereby fixing the fixing portion 41 to the assembly surface Pa.

[0089] (Configuration of the Main Holding Unit 51)

[0090] The main holding portion 51 has an arc-shaped holding surface 52 along the outer peripheral surface of the first electric wire member 20. The outer peripheral surface of the first electric wire member 20 is held by the holding surface 52.

[0091] The main holding portion 51 has a main insertion opening 53 that opens in a direction perpendicular to the longitudinal direction of the first electric wire member 20 and into which the first electric wire member 20 can be inserted. When the wire-side fixing member 40 is fixed to the panel P, the main insertion opening 53 opens in a direction facing the panel P. The first electric wire member 20 is inserted into the main insertion opening 53 from a direction perpendicular to its longitudinal direction.

[0092] A retaining piece 54 is formed at the upper end of the main retaining portion 51. The retaining piece 54 extends toward the central axis of the first electric wire member 20 held on the retaining surface 52. The top end of the retaining piece 54 has an arcuate cross-section that is recessed in a direction away from the first electric wire member 20 held on the retaining surface 52. The top end of the retaining piece 54 retains the first electric wire member 20 held on the retaining surface 52 from above.

[0093] The main insertion port 53 of this embodiment is formed by the side surface 54a of the holding piece 54 and the side surface 51a of the main holding portion 51 that faces the side surface 54a in the X-axis direction. The side surface 54a of the holding piece 54 and the side surface 51a of the main holding portion 51 are inclined so as to approach each other as they move toward the holding surface 52.

[0094] The opening width of the main insertion port 53 in the X-axis direction, that is, the distance between the side surface 54a of the retaining piece 54 and the side surface 51a of the main retaining portion 51, is formed to be smaller than the outer diameter of the tube 24 of the first electric wire member 20. When the first electric wire member 20 is inserted into the main insertion port 53, the retaining piece 54 elastically deforms, thereby increasing the opening width, and the first electric wire member 20 is inserted into the main insertion port 53. At this time, the first electric wire member 20 is guided toward the retaining surface 52 by the side surface 54a of the retaining piece 54 and the side surface 51a of the main retaining portion 51.

[0095] (Configuration of Sub-Holding Section 61)

[0096] The auxiliary retaining portion 61 includes an arcuate retaining surface 62 extending along the outer circumference of the second electric wire member 30. A plurality of engaging projections 62a are provided on the retaining surface 62, which is located on the side of the fixing portion 41. These engaging projections 62a engage with the annular recesses 34b of the corrugated tube 34. The engaging projections 62a are spaced apart in the Y-axis direction. The engagement of the engaging projections 62a with the annular recesses 34b restricts movement of the corrugated tube 34 in the Y-axis direction.

[0097] The auxiliary holding portion 61 includes an auxiliary insertion opening 63 that opens in a direction perpendicular to the longitudinal direction of the second electric wire member 30 and into which the second electric wire member 30 can be inserted. When the wire-side fixing member 40 is fixed to the panel P, the auxiliary insertion opening 63 opens in a direction that does not face the panel P. In this embodiment, the wire-side fixing member 40 is fixed to the panel P with the auxiliary insertion opening 63 opening on the left side. The second electric wire member 30 is inserted into the auxiliary insertion opening 63 in a direction perpendicular to its longitudinal direction.

[0098] A pair of retaining pieces 64 are formed at one end portion of the auxiliary retaining portion 61 in the X-axis direction. The retaining pieces 64 extend toward the central axis of the second electric wire member 30 held on the retaining surface 62. The top end portion of each retaining piece 64 has an arcuate cross-section that is recessed away from the second electric wire member 30 held on the retaining surface 62. The top end portion of each retaining piece 64 retains the second electric wire member 30 held on the retaining surface 62 from one side in the X-axis direction.

[0099] The auxiliary insertion port 63 of this embodiment is formed by the side surfaces 64a of the holding pieces 64 that face each other in the Z-axis direction. The side surfaces 64a are inclined so as to approach each other as they go toward the holding surface 62 side.

[0100] The opening width of the auxiliary insertion port 63 in the Z-axis direction, that is, the distance between the side surfaces 64a of each retaining piece 64, is formed to be smaller than the outer diameter of the corrugated tube 34 of the second electric wire member 30. When the second electric wire member 30 is inserted into the auxiliary insertion port 63, the retaining pieces 64 elastically deform, thereby increasing the opening width, and the second electric wire member 30 is inserted into the auxiliary insertion port 63. At this time, the second electric wire member 30 is guided toward the retaining surface 62 by the side surfaces 64a of each retaining piece 64.

[0101] like Figure 5 As shown, in the wiring harness 10 fixed to the panel P of the horizontally positioned vehicle V, the lowermost portion of the second wire member 30 is positioned above the lowermost portion of the first wire member 20. That is, the height H2 of the second wire member 30 from the ground G is higher than the height H1 of the first wire member 20 from the ground G.

[0102] (Configuration of Pipeline-Side Fixing Member 70)

[0103] The conduit-side fixing member 70 has the same configuration as the wire-side fixing member 40. Therefore, in the description of the conduit-side fixing member 70, configurations identical to those of the wire-side fixing member 40 are denoted by the same reference numerals. Configurations corresponding to those of the wire-side fixing member 40 are denoted by adding the reference numeral "5*" representing the configuration of the wire-side fixing member 40 to the reference numeral "30" to omit duplicate descriptions.

[0104] like Figure 6 As shown, the duct-side fixing member 70 includes a fixing portion 41 fixed to the assembly surface Pa of the panel P of the vehicle V, a main holding portion 81 holding the duct 90 , and a sub-holding portion 61 holding the second electric wire member 30 .

[0105] The pipe side fixing member 70 is a member that fixes the pipe 90 and the second electric wire member 30 to the panel P in the second section 30B. The pipe side fixing member 70 fixes the second electric wire member 30 to the pipe 90 in the second section 30B. Figure 2 As shown, in this embodiment, the two pipeline-side fixing members 70 are provided at a distance from each other in the Y-axis direction.

[0106] In the present embodiment, the pipeline-side fixing member 70 is fixed to the panel P so that the sub-insertion port 63 opens on the right side.

[0107] In the wire harness 10 fixed to the panel P of the horizontally positioned vehicle V, the lowest portion of the second wire member 30 is located above the lowest portion of the conduit 90. That is, a height H2 of the second wire member 30 from the ground G is higher than a height H3 of the conduit 90 from the ground G.

[0108] As described above, in the wiring harness 10 on the panel P of the vehicle V fixed in the horizontal state, among the heights H1 to H3 from the ground G of the first wire member 20, the second wire member 30, and the pipe 90, the relationship H1 < H3 < H2 holds.

[0109] (Fixing step of the wiring harness 10)

[0110] Next, the steps for fixing the wiring harness 10 of the present embodiment to the panel P will be described.

[0111] First, the fixing steps of the wiring harness 10 in the first section 30A will be described.

[0112] First, the first wire member 20 is assembled to the main holding portion 51 of the wire-side fixing member 40. At this time, with respect to the main insertion port 53 of the main holding portion 51, the first wire member 20 is inserted from a direction orthogonal to its longitudinal direction. At this time, the first wire member 20 abuts against the side surface 54a of the holding piece 54 and the side surface 51a of the main holding portion 51 that form the main insertion port 53. As a result, the holding piece 54 flexes so as to retreat from the first wire member 20. And when the first wire member 20 is inserted to the position held by the holding surface 52, the holding piece 54 elastically restores, and thus the first wire member 20 is held by the holding surface 52 and the holding piece 54.

[0113] After the first wire member 20 is assembled to the main holding portion 51 of the wire-side fixing member 40, the fixing portion 41 of the wire-side fixing member 40 is fixed to the column portion Pb. At this time, each abutting portion 43 of the fixing portion 41 abuts against the assembling surface Pa.

[0114] Next, the second wire member 30 is assembled to the sub-holding portion 61 of the wire-side fixing member 40. At this time, with respect to the sub-insertion port 63 of the sub-holding portion 61, the second wire member 30 is inserted from a direction orthogonal to its longitudinal direction, more specifically from the left side. At this time, the second wire member 30 abuts against the side surfaces 64a of the respective holding pieces 64 that form the sub-insertion port 63. As a result, the respective holding pieces 64 flex so as to retreat from the second wire member 30. And when the second wire member 30 is inserted to the position held by the holding surface 62, the respective holding pieces 64 elastically restore, and thus the second wire member 30 is held by the holding surface 62 and the respective holding pieces 64.

[0115] In this way, in the first section 30A, the first wire member 20 and the second wire member 30 are fixed to the panel P together.

[0116] Next, regarding the fixing steps of the wiring harness 10 in the second section 30B, the description will focus on the differences from the fixing steps of the wiring harness 10 in the above-described first section 30A.

[0117] First, the pipe 90 is assembled to the main retaining portion 81 of the pipe-side fixing member 70. At this point, the pipe 90 is inserted into the main insertion opening 83 of the main retaining portion 81 from a direction perpendicular to its longitudinal direction. At this point, the pipe 90 abuts against the side surface 84a of the retaining piece 84 that constitutes the main insertion opening 83 and the side surface 81a of the main retaining portion 81. As a result, the retaining piece 84 flexes to retreat away from the pipe 90. Furthermore, when the pipe 90 is inserted to a position where it is retained by the retaining surface 82, the retaining piece 84 elastically returns to its original position, thereby retaining the pipe 90 using the retaining surface 82 and the retaining piece 84.

[0118] After the pipe 90 is assembled to the main holding portion 81 of the pipe-side fixing member 70 , the fixing portion 41 of the pipe-side fixing member 70 is fixed to the column portion Pb. At this time, the contact portions 43 of the fixing portion 41 contact the assembly surface Pa.

[0119] Next, the second wire member 30 is assembled to the auxiliary holding portion 61 of the pipeline-side fixing member 70. The subsequent steps are the same as the steps for fixing the second wire member 30 in the first section 30A. However, the second wire member 30 is inserted from the right side of the auxiliary holding portion 61.

[0120] In this manner, the conduit 90 and the second electric wire member 30 are fixed to the panel P together in the second section 30B.

[0121] As described above, in the present embodiment, the second electric wire member 30 can be attached later to the electric wire-side fixing member 40 that holds the first electric wire member 20 and the conduit-side fixing member 70 that holds the conduit 90 .

[0122] The operation and effects of this embodiment will be described.

[0123] (1) The wire harness 10 includes a first wire member 20 arranged in parallel with a conduit 90, and a second wire member 30 arranged between the first wire member 20 and the conduit 90. The second wire member 30 includes a first section 30A extending along the first wire member 20, a second section 30B extending along the conduit 90 at a position farther from the first wire member 20 than the first section 30A in the direction in which the conduit 90 and the first wire member 20 are arranged, and a third section 30C extending between the first section 30A and the second section 30B. The second conductor 32 of the second wire member 30 extends so as to include the third section 30C.

[0124] When the electric wire member having the portion extending along the first electric wire member 20 and the portion extending along the duct 90 is laid, if it is difficult for the electric wire member to maintain its shape, the electric wire member may increase in the fixed portion of the vehicle V.

[0125] In this regard, according to the above configuration, the second wire member 30 includes the second conductor 32 extending to include the third section 30C. The second conductor 32 has sufficient rigidity to maintain its shape, and thus easily maintains its shape in the third section 30C. Consequently, the second wire member 30 need not be fixed to the vehicle V in the third section 30C. This improves workability during routing of the wire harness 10.

[0126] (2) The second conductor 32 is a single-core wire having a columnar shape and a solid interior.

[0127] According to such a configuration, the second conductor 32 capable of maintaining its own shape can be simplified.

[0128] (3) The second electric wire member 30 is fixed to the first electric wire member 20 in the first section 30A.

[0129] According to this configuration, the second wire member 30 is fixed to the first wire member 20 in the first section 30A extending along the first wire member 20. Therefore, when the wire harness 10 is fixed to the vehicle V in the first section 30A, the number of fixing members and fixing locations for fixing the wire harness 10 to the vehicle V can be reduced compared to a case where the first wire member 20 and the second wire member 30 are separately fixed to the vehicle V. Therefore, workability during routing of the wire harness 10 can be improved.

[0130] (4) The second electric wire member 30 is fixed to the conduit 90 in the second section 30B.

[0131] With this configuration, the second electric wire member 30 is fixed to the duct 90 in the second section 30B extending along the duct 90. Therefore, when the wire harness 10 is fixed to the vehicle V in the second section 30B, the number of fixing members and fixing locations used to fix the wire harness 10 to the vehicle V can be reduced compared to a case where the duct 90 and the second electric wire member 30 are separately fixed to the vehicle V. Consequently, workability during routing of the wire harness 10 can be improved.

[0132] (5) The wire-side fixing member 40 is provided in the first section 30A.

[0133] According to this configuration, since the wire-side fixing member 40 is provided in the first section 30A, the first wire member 20 and the second wire member 30 are fixed to the panel P together in the first section 30A. Therefore, compared with a case where the first wire member 20 and the second wire member 30 are fixed to the panel P individually in the first section 30A, the number of fixing members and fixing locations for fixing the wire harness 10 to the vehicle V can be reduced. Therefore, the workability when routing the wire harness 10 can be improved.

[0134] (6) The wire-side fixing member 40 includes a main holding portion 51 for holding the first wire member 20 and a sub-holding portion 61 for holding the second wire member 30. The main holding portion 51 includes a main insertion opening 53 into which the first wire member 20 can be inserted. The sub-holding portion 61 of the wire-side fixing member 40 includes a sub-insertion opening 63 into which the second wire member 30 can be inserted. When fixed to the panel P, the sub-insertion opening 63 of the wire-side fixing member 40 is open in a direction not facing the panel P.

[0135] According to this configuration, the second electric wire member 30 can be attached after the auxiliary holding portion 61 of the wire-side fixing member 40 is fixed to the panel P while holding the first electric wire member 20. This improves the workability when routing the wire harness 10, compared to a case where an integral component in which the first and second electric wire members 20 and 30 are assembled in the fixing member is fixed to the panel P.

[0136] (7) The pipeline side fixing member 70 is provided in the second section 30B.

[0137] According to this configuration, since the conduit-side fixing member 70 is provided in the second section 30B, the conduit 90 and the second electric wire member 30 are fixed to the panel P together in the second section 30B. Therefore, compared with a case where the conduit 90 and the second electric wire member 30 are fixed to the panel P separately in the second section 30B, the number of fixing members and fixing locations for fixing the wire harness 10 to the vehicle V can be reduced. Consequently, workability during routing of the wire harness 10 can be improved.

[0138] (8) The duct-side fixing member 70 includes a main retaining portion 81 for retaining the duct 90 and a secondary retaining portion 61 for retaining the second electric wire member 30. The main retaining portion 81 includes a main insertion opening 83 into which the duct 90 can be inserted. The secondary retaining portion 61 of the duct-side fixing member 70 includes a secondary insertion opening 63 into which the second electric wire member 30 can be inserted. When fixed to the panel P, the secondary insertion opening 63 of the duct-side fixing member 70 opens in a direction not facing the panel P.

[0139] With this configuration, the second electric wire member 30 can be attached afterward to the secondary retaining portion 61 of the conduit-side fixing member 70, which is fixed to the panel P while retaining the conduit 90. This improves workability when routing the wire harness 10, compared to a case where an integral component, in which the conduit 90 and the second electric wire member 30 are assembled into a fixing member, is fixed to the panel P.

[0140] (9) When the second electric wire member 30 is installed in the horizontal vehicle V, the lowermost portion of the second electric wire member 30 is located above the lowermost portion of the first electric wire member 20 .

[0141] According to this configuration, in the wiring harness 10 laid in the horizontal vehicle V, the first wire member 20 is positioned below the second wire member 30. Thus, by providing the second wire member 30, it is possible to suppress a decrease in the distance from the ground G to the lowest point of the vehicle V in which the wiring harness 10 is laid, or the so-called minimum ground clearance.

[0142] (10) When the second electric wire member 30 is installed in the horizontal vehicle V, the lowermost portion of the second electric wire member 30 is located above the lowermost portion of the conduit 90 .

[0143] According to this configuration, in the wiring harness 10 laid in the horizontal vehicle V, the conduit 90 is located below the second wire member 30. Thus, by providing the second wire member 30, it is possible to suppress a decrease in the distance from the ground G to the lowest point of the vehicle V in which the wiring harness 10 is laid, or the so-called minimum ground clearance.

[0144] <Change Example>

[0145] This embodiment can be implemented with the following modifications: This embodiment and the following modifications can be implemented in combination with each other within a range that does not technically conflict.

[0146] ·like Figure 7 As shown, the second conductor 32 of the second electric wire member 30 may be a single-core wire in a cylindrical shape.

[0147] The first insulating coating 23 and the second insulating coating 33 are not limited to being formed by extrusion molding, and may be formed by, for example, a shrinkable tube that is subsequently attached to the first conductor 22 and the second conductor 32 .

[0148] The second electric wire member 30 may include a plurality of second electric wires 31 .

[0149] The corrugated tube 34 of the second electric wire member 30 can also be omitted.

[0150] In the first electric wire member 20, a resin tube can be used instead of the metal tube 24. The resin tube can be made of a conductive resin material or a non-conductive resin material. For example, a synthetic resin such as polyolefin, polyamide, polyester, or ABS resin can be used as the resin material.

[0151] The first electric wire member 20 may include one first electric wire 21 or may include three or more first electric wires 21 .

[0152] In the wire harness 10 fixed to the panel P of the horizontally positioned vehicle V, the lowermost portion of the second wire member 30 may be located at the same height as the lowermost portion of the first wire member 20 or may be located lower than the lowermost portion of the first wire member 20 .

[0153] In the wire harness 10 fixed to the panel P of the horizontal vehicle V, the lowermost portion of the second electric wire member 30 may be located at the same height as the lowermost portion of the duct 90 or may be located lower than the lowermost portion of the duct 90 .

[0154] In the wire-side fixing member 40 and the conduit-side fixing member 70, the main insertion openings 53 and 83 may be openings on one side in the X-axis direction or on the side opposite to the assembly surface Pa in the Z-axis direction. In these cases, the first wire member 20 and the conduit 90 can be removed from the wire-side fixing member 40 and the conduit-side fixing member 70, respectively, while the wire-side fixing member 40 and the conduit-side fixing member 70 are fixed to the assembly surface Pa.

[0155] Each of the auxiliary insertion openings 63 of the wire-side fixing member 40 and the conduit-side fixing member 70 may be an insertion opening that opens on the side opposite to the assembly surface Pa in the Z-axis direction.

[0156] In this embodiment, the second electric wire member 30 is attached after the electric wire-side fixing member 40 that holds the first electric wire member 20 and the conduit-side fixing member 70 that holds the conduit 90. However, the electric wire-side fixing member 40 that holds both the first electric wire member 20 and the second electric wire member 30 together may be fixed to the assembly surface Pa. Alternatively, the conduit-side fixing member 70 that holds both the conduit 90 and the second electric wire member 30 together may be fixed to the assembly surface Pa.

[0157] The number of the electric wire-side fixing members 40 and the pipe-side fixing members 70 can be changed as appropriate.

[0158] A known fixing member capable of holding the first electric wire member 20 and the second electric wire member 30 may be used in place of or in addition to the wire-side fixing member 40. Furthermore, a known fixing member capable of holding the tube 90 and the second electric wire member 30 may be used in place of or in addition to the tube-side fixing member 70.

[0159] The first electric wire member 20 and the second electric wire member 30 may be fixed to each other using, for example, a belt member, a tape, etc. Alternatively, the tube 90 and the second electric wire member 30 may be fixed to each other using, for example, a belt member, a tape, etc.

[0160] The objects to which the wire-side fixing member 40 and the conduit-side fixing member 70 are fixed are not limited to the panel P of the vehicle V, and may be, for example, brackets attached to the panel P.

[0161] The wire harness 10 of the present disclosure can also be applied to vehicles in which a plurality of conduits 90 are arranged in a row. In this case, the conduit 90 closest to the second wire member 30 and the second wire member 30 among the conduit 90 can be fixed to the panel P using the conduit-side fixing member 70, or the conduit 90 and the second wire member 30 can be fixed to the panel P using a fixing member having a plurality of main retaining portions 81.

[0162] In this embodiment, the second section 30B is provided behind the first section 30A, but the present invention is not limited thereto. Figure 9 As shown, the second section 30B may be provided in front of the first section 30A. In this case, it is preferable that the third section 30C extends obliquely so as to be located to the right as it goes toward the rear of the vehicle V.

[0163] ·like Figure 9 As shown, in the first section 30A, the second section 30B, and the third section 30C, the wire harness 10 of the present disclosure can also be applied to a vehicle V having a conduit 90 routed along the second electric wire member 30. In this case, in the first section 30A, the fixing member 140 capable of collectively holding the first electric wire member 20, the second electric wire member 30, and the conduit 90 may be used, or the wire-side fixing member 40 and the conduit-side fixing member 70 may be used in combination.

[0164] ·like Figure 2 As shown, the vehicle V has an intermediate position between the front end and the rear end of the vehicle V. The first machine M1 and the third machine M3 are sometimes referred to as front machines disposed at the front portion of the vehicle V between the front end and the intermediate position. The second machine M2 and the fourth machine M4 are sometimes referred to as rear machines disposed at the rear portion of the vehicle V between the rear end and the intermediate position.

[0165] As in the illustrated embodiment, the first electric wire member 20 may have a first distal end or a first proximal end that can be connected to the first device M1, and a first rear end or a first distal end that can be connected to the second device M2. The second electric wire member 30 of the embodiment may have a second distal end or a second proximal end that can be connected to the third device M3, and a second rear end or a second distal end that can be connected to the fourth device M4.

[0166] In the illustrated embodiment, the pipe 90 may extend over a first position or a first end that can be the same position as or further forward than the front wheel among the wheels W (e.g., the master cylinder 91), and a second position or a second end that can be the same position as or further rearward than the rear wheel among the wheels W (e.g., the brake caliper of the rear wheel).

[0167] The pipe 90 of the embodiment may be referred to as a fluid pipe, which may be a hydraulic pipe, a reference pipe, or a base pipe. The combination of the wire harness 10 and the pipe 90 of the embodiment may be referred to as a vehicle underfloor wiring arrangement of the wire harness and the fluid pipe.

[0168] The present disclosure includes the following aspects. Reference numerals are provided for illustrating several components of the exemplary embodiments, not for limitation but to aid understanding. Some of the items described in the following aspects may be omitted, or several of the items described in the aspects may be selected or extracted and combined.

[0169] [Supplementary Note 1] The wiring harness (10) according to several aspects of the present disclosure preferably includes:

[0170] a first electric wire member (20) having a first base end, a first top end, and an overall length defined by the first base end and the first top end;

[0171] a second electric wire member (30) having a second base end, a second top end, and a total length defined by the second base end and the second top end, wherein the total length of the second electric wire member (30) includes a first length section (30A) adjacent to the first electric wire member (20), a second length section (30B), and a third length section (30C) between the first length section (30A) and the second length section (30B);

[0172] a first fixing member (40) configured to connect the first length section (30A) of the second electric wire member (30) and the first electric wire member (20) side by side, and to fix the first length section (30A) of the second electric wire member (30) and the first electric wire member (20) to the vehicle (V); and

[0173] The second fixing member (70) is configured to connect the second length section (30B) of the second electric wire member (30) and a strip-shaped member (90) different from the wire harness (10) in parallel, and to fix the second length section (30B) of the second electric wire member (30) and the strip-shaped member (90) to the vehicle (V).

[0174] The entire third length section (30C) extends in a floating state between the first fixing member (40) and the second fixing member (70).

[0175] [Supplementary Note 2] In some embodiments of the present disclosure, the wiring harness (10) does not have a mechanical element for mechanically connecting the outer surface of the third length section (30C) of the second wire component (30) and the outer surface of the first wire component (20).

[0176] [Supplementary Note 3] In some embodiments of the present disclosure, the wire harness (10) does not have a mechanical element for mechanically connecting the outer surface of the third length section (30C) of the second wire component (30) and the vehicle (V).

[0177] [Supplementary Note 4] In several embodiments of the present disclosure, the wiring harness (10) does not have a mechanical element for mechanically connecting the outer surface of the third length section (30C) of the second wire component (30) and the outer surface of the long strip component (90).

[0178] [Supplementary Note 5] Among the several aspects of the present disclosure, it is preferred that:

[0179] At the position of the first fixing member (40), the first length section (30A) of the second electric wire member (30) is separated from the first electric wire member (20) by a first gap in a direction intersecting the longitudinal direction of the first length section (30A).

[0180] At the position of the second fixing member (70), the second length section (30B) of the second electric wire member (30) is separated from the first electric wire member (20) by a second gap larger than the first gap in a direction intersecting the longitudinal direction of the second length section (30B).

[0181] [Supplementary Note 6] Among the several aspects of the present disclosure, it is preferred that:

[0182] At the position of the first fixing member (40), the first length section (30A) of the second electric wire member (30) is separated from the long strip member (90) by a third gap larger than the first gap in a direction intersecting the longitudinal direction of the first length section (30A).

[0183] At the position of the second fixing member (70), the second length section (30B) of the second electric wire member (30) is separated from the long strip member (90) by a fourth gap smaller than the third gap in a direction intersecting the longitudinal direction of the second length section (30B).

[0184] [Supplementary Note 7] Among several aspects of the present disclosure, it is preferred that

[0185] The first fixing member (40) is configured not to connect the first length section (30A) of the second electric wire member (30) and the long strip member (90).

[0186] The second fixing member (70) is configured not to connect the second length section (30A) of the second electric wire member (30) and the first electric wire member (20).

[0187] [Supplementary Note 8] Several aspects of the present disclosure are associated with the wiring layout of the wiring harness (10) and fluid lines (90) under the vehicle floor.

[0188] The wiring harness (10) preferably comprises:

[0189] a first electric wire member (20) having a first base end, a first top end, and an overall length defined by the first base end and the first top end;

[0190] a second electric wire member (30) having a second base end, a second top end, and a total length defined by the second base end and the second top end, wherein the total length of the second electric wire member (30) includes a first length section (30A) adjacent to the first electric wire member (20), a second length section (30B), and a third length section (30C) between the first length section (30A) and the second length section (30B);

[0191] a first fixing member (40) configured to connect the first length section (30A) of the second electric wire member (30) and the first electric wire member (20) side by side, and to fix the first length section (30A) of the second electric wire member (30) and the first electric wire member (20) to the vehicle (V); and

[0192] A second fixing member (70) connects the second length section (30B) of the second electric wire member (30) and the fluid pipeline (90) side by side, and fixes the second length section (30B) of the second electric wire member (30) and the fluid pipeline (90) to the vehicle (V).

[0193] The entire third length section (30C) extends in a floating state between the first fixing member (40) and the second fixing member (70).

[0194] Description of Reference Numerals

[0195] G Ground

[0196] H1 Height

[0197] H2 Height

[0198] H3 Height

[0199] M1 First Machine

[0200] M2 Second Machine

[0201] M3 3rd Machine

[0202] M4 The 4th Machine

[0203] P Panel

[0204] Pa assembly surface

[0205] Pb column

[0206] V Vehicle

[0207] W wheel

[0208] 10 Wiring Harness

[0209] 20 1st wire member

[0210] 21 First Wire

[0211] 22 1st conductor

[0212] 23 First insulation coating

[0213] 24 tubes

[0214] 30 Second wire member

[0215] 30A Section 1

[0216] 30B Section 2

[0217] 30C Zone 3

[0218] 31 Second wire

[0219] 32 Second conductor

[0220] 33 Second insulation covering

[0221] 34 bellows

[0222] 34a annular convex portion

[0223] 34b annular recess

[0224] 40 Wire side fixing member

[0225] 41 fixed part

[0226] 42 Insertion hole

[0227] 43 Butt

[0228] 44 locking piece

[0229] 51 Main holding unit

[0230] 51a Side

[0231] 52 Keep Surface

[0232] 53 Main Socket

[0233] 54 retaining plate

[0234] 54a Side

[0235] 61 Sub-holding unit

[0236] 62 Keep Surface

[0237] 62a Fitting convex part

[0238] 63 Auxiliary insertion port

[0239] 64 retaining plate

[0240] 64a Side

[0241] 70 Pipeline side fixing components

[0242] 81 Main holding unit

[0243] 81a Side

[0244] 82 Keep Surface

[0245] 83 Main Socket

[0246] 84 retaining sheet

[0247] 84a Side

[0248] 90 pipeline

[0249] 91 Master Cylinder

[0250] 140 fixed components

Claims

1. A wiring harness, arranged in a vehicle, wherein the vehicle is equipped with a pipeline for liquid circulation under the floor, the wiring harness comprising: a first electric wire member arranged in alignment with the pipe; and The second electric wire member is arranged between the first electric wire member and the pipeline. The second electric wire member includes: Conductors, having the rigidity to maintain their shape; and an insulating covering portion covering the outer periphery of the conductor, The second electric wire member includes: a first section extending along the first electric wire member; a second section extending along the duct at a position farther from the first electric wire member than the first section in an arrangement direction of the duct and the first electric wire member; and The third section extends between the first section and the second section, The conductor extends so as to include the third section. When the second electric wire member is installed in a horizontal vehicle, the lowermost portion of the second electric wire member is located above the lowermost portion of the first electric wire member.

2. A wiring harness, arranged in a vehicle, wherein the vehicle is equipped with a pipeline for liquid circulation under the floor, the wiring harness comprising: a first electric wire member arranged in alignment with the pipe; and The second electric wire member is arranged between the first electric wire member and the pipeline. The second electric wire member includes: Conductors, having the rigidity to maintain their shape; and an insulating covering portion covering the outer periphery of the conductor, The second electric wire member includes: a first section extending along the first electric wire member; a second section extending along the duct at a position farther from the first electric wire member than the first section in an arrangement direction of the duct and the first electric wire member; and The third section extends between the first section and the second section, The conductor extends so as to include the third section. When the second electric wire member is installed in a horizontal vehicle, the lowermost portion of the second electric wire member is located above the lowermost portion of the duct.

3. The wire harness according to claim 1 or claim 2, wherein: The conductor is a single-core wire in a cylindrical shape.

4. The wire harness according to claim 1 or claim 2, wherein: The conductor is a single-core wire in a cylindrical shape with a solid interior.

5. The wire harness according to claim 1 or claim 2, wherein: The second electric wire member is fixed to the first electric wire member in the first section.

6. The wire harness according to claim 1 or claim 2, wherein: The second electric wire member is fixed to the pipe in the second section.

7. The wire harness according to claim 1 or claim 2, wherein: The wire harness includes a wire-side fixing member that fixes the first wire member and the second wire member together to a fixing object of the vehicle. The wire-side fixing member is provided in the first section.

8. The wire harness according to claim 7, wherein The wire-side fixing member has: a main holding portion for holding the first electric wire member; and a secondary holding portion for holding the second electric wire member; The main holding portion has a main insertion port that opens in a direction perpendicular to the longitudinal direction of the first electric wire member and into which the first electric wire member can be inserted. The auxiliary holding portion has an auxiliary insertion port that opens in a direction perpendicular to the longitudinal direction of the second electric wire member and into which the second electric wire member can be inserted. In a state where the auxiliary insertion port is fixed to the fixing object, the auxiliary insertion port is opened in a direction not facing the fixing object.

9. The wire harness according to claim 1 or claim 2, wherein: The wiring harness includes a conduit-side fixing member that fixes the conduit and the second electric wire member together to a fixing object of the vehicle. The pipeline-side fixing member is provided in the second section.

10. The wire harness according to claim 9, wherein The pipeline side fixing component has: a main holding portion that holds the pipeline; and a secondary holding portion for holding the second electric wire member; The main holding portion of the pipeline-side fixing member has a main insertion port that opens in a direction perpendicular to the longitudinal direction of the pipeline and into which the pipeline can be inserted. The auxiliary holding portion of the pipeline side fixing member has an auxiliary insertion port that opens in a direction perpendicular to the longitudinal direction of the second electric wire member and into which the second electric wire member can be inserted. In a state where the sub-insertion port of the conduit-side fixing member is fixed to the fixing object, the sub-insertion port opens in a direction not facing the fixing object.

11. The wire harness according to claim 1, wherein When the second electric wire member is installed in a horizontal vehicle, the lowermost portion of the second electric wire member is located above the lowermost portion of the duct.

12. A wiring harness arranged in a vehicle having a pipeline for liquid circulation installed under the floor, the wiring harness comprising: a first electric wire member arranged in alignment with the pipe; and The second electric wire member is arranged between the first electric wire member and the pipeline. The second electric wire member includes: Conductors, having the rigidity to maintain their shape; and an insulating covering portion covering the outer periphery of the conductor, The second electric wire member includes: a first section extending along the first electric wire member; a second section extending along the duct at a position farther from the first electric wire member than the first section in an arrangement direction of the duct and the first electric wire member; as well as The third section extends between the first section and the second section, The conductor extends so as to include the third section. The wire harness includes a wire-side fixing member that fixes the first wire member and the second wire member together to a fixing object of the vehicle. The wire-side fixing member is provided in the first section, The wire-side fixing member has: a main holding portion for holding the first electric wire member; and a secondary holding portion for holding the second electric wire member; The main holding portion has a main insertion port that opens in a direction perpendicular to the longitudinal direction of the first electric wire member and into which the first electric wire member can be inserted. The auxiliary holding portion has an auxiliary insertion port that opens in a direction perpendicular to the longitudinal direction of the second electric wire member and into which the second electric wire member can be inserted. In a state where the auxiliary insertion port is fixed to the fixing object, the auxiliary insertion port is opened in a direction not facing the fixing object.

13. A wiring harness arranged in a vehicle, wherein the vehicle is equipped with a pipeline for liquid circulation under the floor, the wiring harness comprising: a first electric wire member arranged in alignment with the pipe; and The second electric wire member is arranged between the first electric wire member and the pipeline. The second electric wire member includes: Conductors, having the rigidity to maintain their shape; and an insulating covering portion covering the outer periphery of the conductor, The second electric wire member includes: a first section extending along the first electric wire member; a second section extending along the duct at a position farther from the first electric wire member than the first section in an arrangement direction of the duct and the first electric wire member; and The third section extends between the first section and the second section, The conductor extends so as to include the third section. The wiring harness includes a conduit-side fixing member that fixes the conduit and the second electric wire member together to a fixing object of the vehicle. The pipeline side fixing member is provided in the second section, The pipeline side fixing component has: a main holding portion that holds the pipeline; and a secondary holding portion for holding the second electric wire member; The main holding portion of the pipeline-side fixing member has a main insertion port that opens in a direction perpendicular to the longitudinal direction of the pipeline and into which the pipeline can be inserted. The auxiliary holding portion of the pipeline side fixing member has an auxiliary insertion port that opens in a direction perpendicular to the longitudinal direction of the second electric wire member and into which the second electric wire member can be inserted. In a state where the sub-insertion port of the conduit-side fixing member is fixed to the fixing object, the sub-insertion port opens in a direction not facing the fixing object.

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