Wire harness

By using resin components and wires in the wiring harness, and using its rectangular cross-sectional shape and layout to face each other, the problem of difficult to thin the wiring harness layout space is solved, and the space optimization of the wiring harness and the protection and fixation of the wires are achieved.

CN120496923APending Publication Date: 2025-08-15YAZAKI CORP
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Patent Information

Application Number
CN202510159127.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-02-15
Filing Date
2025-02-13
Publication Date
2025-08-15

AI Technical Summary

Technical Problem

When the existing wiring harness is arranged, the layout space is difficult to become thinner because the cross-sectional shape of the outer parts is circular.

Method used

The resin member is integrally formed with a plurality of electric wires. The cross-sectional shape of the resin member is rectangular and has a flat shape in the long side direction and the short side direction. By facing the arrangement of the first plane or the second plane, the layout space is reduced in thickness.

Benefits of technology

The wiring harness layout space is reduced to meet the needs of different layout directions, and the resin components are used as external components to protect wires and fix and bundle wires.

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Abstract

The invention provides a wire harness capable of thinning the layout space. A wire harness (1) is provided with: a plurality of electric wires (W); and a resin member (2) having one main body (20) covering the plurality of electric wires and integrally molded with respect to the plurality of electric wires (W), the cross-sectional shape of the main body (20) in a plane orthogonal to the axial direction of the electric wires being a flat shape having a long side direction (D1) and a short side direction (D2), the main body (20) has at least one of a first plane (21) extending in the longitudinal direction and a second plane (22) extending in the short direction.
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Description

Technical Field

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

[0002] Conventionally, there are wire harnesses. Patent Document 1 discloses a wire harness comprising: a wire harness body having wire components and an exterior member surrounding the outer periphery of the wire components; a path limiting member attached to the outer periphery of the exterior member to limit the path of the wire harness body; and an attachment member attached to a portion of the outer periphery of the path limiting member in the longitudinal direction.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2023-066801 Summary of the Invention

[0006] Technical problem that the invention aims to solve

[0007] It is desirable to reduce the thickness of the wiring space when wiring a wiring harness. When the electric wires are inserted into a cylindrical exterior member, it is difficult to reduce the thickness of the wiring space because the cross-sectional shape of the exterior member is circular.

[0008] An object of the present invention is to provide a wire harness capable of reducing the thickness of a wiring space.

[0009] Technical means to solve the problem

[0010] The wiring harness of the present invention is characterized in that it comprises: a plurality of electric wires; and a resin component, wherein the resin component has a main body that covers the plurality of said electric wires and is integrally molded with respect to the plurality of said electric wires, the cross-sectional shape of the main body in a plane perpendicular to the axial direction of the electric wires is a flat shape having a long side direction and a short side direction, and the main body has at least one plane, namely a first plane, which extends in the long side direction, and a second plane, which extends in the short side direction.

[0011] Effects of the Invention

[0012] In the wiring harness of the present invention, the main body of the resin component has at least one of a first plane extending along the longitudinal direction and a second plane extending along the transverse direction. With the wiring harness of the present invention, by aligning the first plane or the second plane with the wiring surface, the wiring space can be reduced in thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the wire harness according to the embodiment.

[0014] Figure 2 It is a cross-sectional view of a resin component according to an embodiment.

[0015] Figure 3 This is a cross-sectional view of the resin component after placement.

[0016] Figure 4 This is a cross-sectional view of the resin component after placement.

[0017] Figure 5 This is a side view of the resin component after placement.

[0018] Figure 6 This is a cross-sectional view of the groove and the resin component.

[0019] Figure 7 This is a top view of the resin component after placement.

[0020] Figure 8 This is a cross-sectional view of the groove and the resin component.

[0021] Figure 9 This is a top view of the resin component after placement.

[0022] Figure 10 This is a perspective view of the resin components after placement.

[0023] Figure 11 It is a top view of the wire harness according to the embodiment.

[0024] Figure 12 It is a top view of the wire harness according to the embodiment.

[0025] Figure 13 This is a cross-sectional view of the groove and the resin component.

[0026] Figure 14 This is a cross-sectional view of the groove and the resin component.

[0027] Figure 15 It is a top view of the wire harness according to the embodiment.

[0028] Figure 16 It is a cross-sectional view of a resin component according to an embodiment.

[0029] Description of Reference Numerals

[0030] 1: Wiring harness

[0031] 2: Resin parts

[0032] 11: Bend

[0033] 20: Main body, 21: First plane, 22: Second plane, 23: Chamfered part

[0034] 24: Protrusion

[0035] 100: Vehicle, 110: Layout surface

[0036] 120: Component, 120A: First component, 120B: Second component, 120C: Third component

[0037] 120D: Fourth component

[0038] 130: plate, 140: rib

[0039] 150: groove, 150A: first groove, 150B: second groove, 150C: third groove

[0040] 150D: Fourth slot

[0041] 160: Peripheral components

[0042] D1: long side direction, D2: short side direction

[0043] E1: first direction, E2: second direction, E3: third direction

[0044] S1: first sub-harness, S2: second sub-harness

[0045] W: wire, W1: inner wire, W2: outer wire

[0046] Wd0: width of the groove, Wd1: width of the first plane, Wd2: width of the second plane

[0047] X: axial direction, Z: vehicle up and down direction DETAILED DESCRIPTION

[0048] Hereinafter, the wiring harness according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiment. Furthermore, the constituent elements in the following embodiment include elements that can be easily conceived by those skilled in the art or substantially the same elements.

[0049] [Example]

[0050] Reference Figures 1 to 16 , an embodiment is described. This embodiment relates to a wire harness. Figure 1 is a top view of the wiring harness according to the embodiment. Figure 2 is a cross-sectional view of a resin component according to an embodiment. Figure 3 as well as Figure 4 This is a cross-sectional view of the resin component after placement. Figure 5 This is a side view of the resin parts after placement. Figure 6 This is a cross-sectional view of the groove and the resin component. Figure 7 This is a top view of the resin parts after placement. Figure 8This is a cross-sectional view of the groove and the resin component. Figure 9 This is a top view of the resin parts after placement. Figure 10 This is a perspective view of the resin components after placement.

[0051] Figure 11 and Figure 12 is a top view of the wiring harness according to the embodiment. Figure 13 and Figure 14 This is a cross-sectional view of the groove and resin parts. Figure 15 is a top view of the wiring harness according to the embodiment. Figure 16 : is a cross-sectional view of the resin component involved in the embodiment. Figure 2 Shown in Figure 1 Section II-II. Figure 16 Shown in Figure 15 Section XVI-XVI of.

[0052] The wire harness 1 of the present embodiment includes a plurality of electric wires W and at least one resin member 2. In this specification, the axial direction of the electric wires W is simply referred to as the axial direction X. Figure 1 The wiring harness 1 includes a plurality of resin components 2. The plurality of resin components 2 are arranged in an axial direction X. The plurality of resin components 2 are arranged at intervals. That is, a plurality of wires W are exposed between two adjacent resin components 2. Each wire W has a core wire and an insulating sheath.

[0053] In the exemplary wiring harness 1, a plurality of electric wires W are formed by bundling a plurality of sub-wiring harnesses. The wiring harness 1 includes a first sub-wiring harness S1 and a second sub-wiring harness S2. That is, the plurality of electric wires W include the electric wires W of the first sub-wiring harness S1 and the electric wires W of the second sub-wiring harness S2.

[0054] The resin component 2 is integrally molded with the plurality of wires W. The resin component 2 serves as a covering that covers the wires W. The resin component 2 is molded, for example, from an insulating synthetic resin. The resin component 2 is, for example, insert-molded with the plurality of wires W. The resin component 2 of this embodiment is elastically deformable. Alternatively, the resin component 2 may be a flexible component such as rubber.

[0055] exist Figure 2 , the cross-sectional shape of the resin component 2 in a plane perpendicular to the axial direction X is shown in FIG. Figure 2 As shown, the resin component 2 has a main body 20 covering a plurality of wires W. The main body 20 has a flat cross-sectional shape having a longitudinal direction D1 and a lateral direction D2. The longitudinal direction D1 and the lateral direction D2 are, for example, orthogonal to each other.

[0056] The main body 20 of the resin member 2 has at least one of a first plane 21 and a second plane 22. The first plane 21 is a plane along the longitudinal direction D1, and the second plane 22 is a plane along the lateral direction D2.

[0057] Figure 2 The cross-sectional shape of the main body 20 shown is rectangular. Figure 2 The main body 20 has a pair of first flat surfaces 21 and a pair of second flat surfaces 22. When the cross-sectional shape of the main body 20 is rectangular, the first flat surfaces 21 are perpendicular to the short-side direction D2. The two first flat surfaces 21 are parallel. The second flat surfaces 22 are perpendicular to the long-side direction D1. The two second flat surfaces 22 are parallel.

[0058] The main body 20 is formed so as to surround the plurality of electric wires W. In other words, in a cross section perpendicular to the axial direction X, the plurality of electric wires W are located inside a region surrounded by the first plane 21 and the second plane 22 .

[0059] A plurality of wires W are arranged along the longitudinal direction D1 inside the main body 20. Figure 2 Inside the resin component 2, the plurality of wires W have two columns WR of wires W arranged in the longitudinal direction D1. For example, the first sub-wiring harness S1 and the second sub-wiring harness S2 are arranged in the longitudinal direction D1. In this case, the wires W of the first sub-wiring harness S1 and the wires W of the second sub-wiring harness S2 are arranged in the longitudinal direction D1. The wires W of the first sub-wiring harness S1 can form one column WR, and the wires W of the second sub-wiring harness S2 can form another column WR. The wiring harness 1 may also have three or more sub-wiring harnesses.

[0060] The wiring harness 1 is laid out, for example, with a first plane 21 facing a routing surface 110 of the vehicle 100 . Figure 3 The wiring harness 1 is shown routed on a routing surface 110. The routing surface 110 is, for example, a surface of a metal member constituting the vehicle body of the vehicle 100. The routing surface 110 may be a surface of a rocker beam of the vehicle 100. The routing surface 110 may also be an upper surface in the vehicle vertical direction Z.

[0061] Since the first plane 21 along the longitudinal direction D1 faces the routing surface 110, the routing space for routing the wire harness 1 can be made thinner. When the routing surface 110 faces upward in the vehicle vertical direction Z, the routing space can be made thinner in the vehicle vertical direction Z.

[0062] In addition, if Figure 4 As shown, the layout surface 110 may also be a surface along the vehicle vertical direction Z. Alternatively, the layout surface 110 may be a surface facing the vehicle width direction. In this case, the layout space in the vehicle width direction can be reduced in thickness. Alternatively, the layout surface 110 may be a surface facing the vehicle front-to-back direction. In this case, the layout space in the vehicle front-to-back direction can be reduced in thickness.

[0063] The direction in which the wire harness 1 extends can be the vehicle vertical direction Z, the vehicle front-rear direction, the vehicle width direction, or other directions. The wire harness 1 can be laid out in a straight line or with a curved portion. The laying surface 110 is not limited to a flat surface.

[0064] The installation surface 110 may be, for example, a surface curved in an arc shape. Figure 5 The wiring surface 110 is shown to be curved in an arc shape along the extending direction of the wire harness 1 . Figure 5 The installation surface 110 is, for example, the surface of the wheel housing of the vehicle 100. Figure 5 In the wiring harness 1, the wires W are exposed between adjacent resin members 2. Therefore, the exposed wires W can be easily deformed along the routing surface 110 extending while being bent. In addition, the resin member 2 can be elastically deformed along the shape of the routing surface 110.

[0065] The wire harness 1 may be routed in a groove portion provided in the vehicle 100 . Figure 6 A component 120 having a layout surface 110 is shown. The component 120 is, for example, a metal component and constitutes a vehicle body of the vehicle 100. The component 120 is manufactured, for example, by die casting or extrusion molding.

[0066] Component 120 includes a plate portion 130 and a pair of ribs 140. Plate portion 130 is formed in a plate shape and has a layout surface 110. A pair of ribs 140 are provided upright from plate portion 130 and are opposed to each other. Ribs 140 protrude from plate portion 130 in a direction perpendicular to layout surface 110. Ribs 140 have retaining surfaces 140a. In the example, retaining surfaces 140a are flat. For example, the two retaining surfaces 140a are parallel.

[0067] The component 120 has a groove 150 surrounded by a pair of ribs 140 and the plate 130. The groove 150 has a rectangular cross-sectional shape in a plane perpendicular to the routing path of the wire harness 1. The main body 20 of the resin component 2 is inserted into the groove 150.

[0068] The resin component 2 is inserted into the groove 150, for example, with the first flat surface 21 facing the routing surface 110. The width Wd1 of the first flat surface 21 is the same as or slightly larger than the width Wd0 of the groove 150. Therefore, the retaining surface 140a can contact the second flat surface 22 of the main body 20, sandwiching the main body 20. The operator routing the wire harness 1 presses the main body 20 of the resin component 2 into the groove 150 while routing the wire harness 1 along the groove 150.

[0069] Figure 7The wiring harness 1 is shown routed in the groove 150. If the wiring harness 1 includes multiple resin components 2, each of the multiple resin components 2 is press-fitted into the groove 150. The wiring harness 1 can be routed so that the entire resin component 2 is housed in the groove 150. In other words, the wiring harness 1 can be routed so that the two first flat surfaces 21 of the resin component 2 are housed between the retaining surfaces 140a.

[0070] like Figure 8 As shown, the resin component 2 can be positioned so that the second flat surface 22 of the main body 20 faces the installation surface 110. In this case, the main body 20 of the resin component 2 is held from both sides in the short-side direction D2 by the two holding surfaces 140a of the component 120. The width Wd2 of the second flat surface 22 is equal to or slightly larger than the width Wd0 of the groove 150. Therefore, the holding surfaces 140a can contact the first flat surface 21 of the main body 20, thereby sandwiching the main body 20.

[0071] In the wire harness 1 after routing, the postures of the plurality of resin members 2 may be different. Figure 9 The wire harness 1 is shown in which a plurality of resin members 2 are housed in the groove portion 150 in different postures. Figure 9 The vehicle 100 includes two components 120. One of the two components 120 is referred to as a first component 120A, and the other component 120 is referred to as a second component 120B. The two components 120A and 120B may be arranged continuously or at intervals.

[0072] The first member 120A and the second member 120B each have a layout surface 110 and a groove 150. The first groove 150A of the first member 120A has a wider width Wd0 than the second groove 150B of the second member 120B.

[0073] The wiring harness 1 is arranged so that the first flat surface 21 faces the routing surface 110 of the first component 120A, and the second flat surface 22 faces the routing surface 110 of the second component 120B. In the first component 120A, the plurality of wires W are arranged primarily in the width direction of the first groove 150A. In the second component 120B, the plurality of wires W are arranged primarily in the depth direction of the second groove 150B. The arrangement direction of the plurality of wires W changes between the first component 120A and the second component 120B. The plurality of wires W are arranged in a spirally twisted manner in the space between the first groove 150A and the second groove 150B. Alternatively, the first groove 150A and the second groove 150B may be grooves 150 provided in the same component 120.

[0074] The wire harness 1 may also be laid along a bent path or a curved path. Figure 10The wiring harness 1 is shown as being routed between two grooves 150C and 150D. The routing path of the wiring harness 1 includes a third groove 150C and a fourth groove 150D. The third groove 150C is a groove 150 included in the third component 120C and extends in a first direction E1. The fourth groove 150D is a groove 150 included in the fourth component 120D and extends in a second direction E2. The second direction E2 intersects the first direction E1, for example, being orthogonal to the first direction E1.

[0075] The plurality of resin components 2 included in the wire harness 1 include resin components 2C, 2D, and 2E. The cross-sectional shape of the resin components 2C, 2D, and 2E is, for example, rectangular. In each of the resin components 2C, 2D, and 2E, a plurality of wires W are arranged in a longitudinal direction D1.

[0076] Resin component 2C is placed in and held by third groove 150C. Resin component 2D is placed in and held by fourth groove 150D. Resin component 2E is placed between resin components 2C and 2D. Resin component 2C is inserted into third groove 150C so that multiple wires W are aligned in the width direction of third groove 150C. Resin component 2D is inserted into fourth groove 150D so that multiple wires W are aligned in the width direction of fourth groove 150D. That is, both resin components 2C and 2D are placed so that first flat surface 21 faces routing surface 110.

[0077] The exemplary resin member 2E is disposed at the curved portion 11 of the wire harness 1. The curved portion 11 is where the extending direction of the wire harness 1 changes from the first direction E1 to the second direction E2, and is used to route the wires W while being curved. The resin member 2E is disposed, for example, in the middle of the curved portion of the wires W.

[0078] The resin component 2E is arranged such that a plurality of wires W are arranged along a third direction E3 within the resin component 2E. The third direction E3 is perpendicular to both the first direction E1 and the second direction E2. The plurality of wires W include inner wires W1 and outer wires W2. The inner wires W1 are the innermost wires W within the bend 11. In other words, the inner wires W1 are the wires W extending to the innermost periphery of the bend 11 among the plurality of wires W. The outer wires W2 are the outermost wires W within the bend 11.

[0079] The resin member 2E is arranged so that the inner wire W1 floats relative to the third groove portion 150C and the fourth groove portion 150D. Figure 10The resin component 2E positions the outer wire W2 at the same position as the two resin components 2C and 2D in the third direction E3. Furthermore, the resin component 2E positions the inner wire W1 away from the two resin components 2C and 2D in the third direction E3. The other wires W are arranged sequentially along the third direction E3, from the outer wire W2 to the inner wire W1.

[0080] The resin component 2E may be held by the third component 120C, the fourth component 120D, or another component 120. The resin component 2E may also utilize the reaction force generated on the wire W to Figure 10 Posture configuration shown.

[0081] By arranging the plurality of wires W in the third direction E3 , the resin member 2E can reduce circumferential length differences among the plurality of wires W. In other words, the resin member 2E can absorb excess length of the wires W1 inside the bend 11 using the space in the third direction E3 .

[0082] The plurality of electric wires W may be unevenly arranged inside the main body 20 of the resin member 2. For example, the plurality of electric wires W may be positioned close to one side in the longitudinal direction D1 or the lateral direction D2. Figure 11 The resin member 2F is shown in which the plurality of electric wires W are arranged offset to one side in the longitudinal direction D1 . The wire harness 1 having such a resin member 2F can also be used to prevent the electric wires W from being interfered with by the peripheral components 160 .

[0083] When the peripheral component 160 is located within or near the wiring path of the wire harness 1, it is desirable to prevent interference between the peripheral component 160 and the wires W. In this case, the resin component 2F is positioned within the wiring path to appropriately maintain a gap between the peripheral component 160 and the plurality of wires W. In the wire harness 1, all or some of the resin components 2 may be resin components 2F that bias and hold the wires W.

[0084] A part of the plurality of electric wires W may be led out from between the two resin members 2 as branch lines. Figure 12 The wire harness 1 shown has two adjacent resin components 2G and 2H. A portion of the wires W3 among the plurality of wires W is held by both resin components 2G and 2H. Another portion of the wires W4 is led out between the two resin components 2G and 2H as a branch line. The wires W4 are held by one resin component 2G and not by the other resin component 2H. The branch line wires W4 are connected to, for example, a connector.

[0085] The resin components 2G and 2H are inserted into the groove 150, for example, with the first flat surface 21 facing the layout surface 110. In this case, the second flat surface 22 of the main body 20 is held by the retaining surface 140a. In this case, the width Wd1 of the first flat surface 21 of one resin component 2G and the width Wd1 of the first flat surface 21 of the other resin component 2H can also be made equal. For example, when two resin components 2G and 2H are inserted into the groove 150 having a fixed width Wd0, the widths Wd1 of the two resin components 2G and 2H are preferably equal. In this case, the two resin components 2G and 2H are molded with the same width Wd1 regardless of the number of wires W to be retained.

[0086] The resin components 2G and 2H can also be inserted into the groove portion 150 with the second flat surface 22 facing the layout surface 110. In this case, the width Wd2 of the second flat surface 22 of one resin component 2G can be equal to the width Wd2 of the second flat surface 22 of the other resin component 2H. The two resin components 2G and 2H between which the branch portion of the wire W is placed can also have the same cross-sectional shape. That is, the two resin components 2G and 2H can have the same width Wd1 and the same width Wd2. By making the cross-sectional shape of the resin component 2 the same regardless of the number of wires W held, the molding die can be made universal.

[0087] The main body 20 of the resin member 2 may be provided with a chamfered portion. Figure 13 The resin component 2K having the chamfered portion 23 is shown. The main body 20 of the resin component 2K has the chamfered portion 23 . Figure 13 The chamfered portions 23 are provided at corners on both sides sandwiching the first plane 21. In other words, in the main body 20, the corners on both sides sandwiching the first plane 21 have a chamfered shape.

[0088] In a resin component 2K having chamfered portions 23, the rigidity of the end portions having chamfered portions 23 is lower than that of the central portion. Therefore, the reaction force of the resin component 2K when inserting it into the groove 150 is reduced, improving the workability of the insertion operation. The illustrated chamfered portions 23 are formed so that the main body 20 can be inserted between the pair of ribs 140.

[0089] The chamfered portion 23 is an inclined surface inclined relative to the longitudinal direction D1. The chamfered portion 23 is inclined toward the center of the longitudinal direction D1 as it approaches the first plane 21 from the second plane 22 along the transverse direction D2. The width Wd3 of the first plane 21 sandwiched between the chamfered portion 23 is preferably shorter than the width Wd0 of the groove 150. Alternatively, the chamfered portion 23 may be provided at the corners on both sides of the second plane 22.

[0090] The resin member 2 may have a protrusion that is inserted into the groove portion 150 . Figure 14 A resin component 2L having a protrusion 24 is shown. The protrusion 24 protrudes from one of the first planes 21 of the main body 20. The cross-sectional shape of the exemplary protrusion 24 is rectangular. The protrusion 24 protrudes from the first plane 21 in the short-side direction D2. The protrusion 24 protrudes, for example, from an end portion of the first plane 21 in the long-side direction D1. The protrusion 24 has two parallel surfaces 24a along the protruding direction of the protrusion 24. The two exemplary surfaces 24a are parallel to the short-side direction D2. One surface 24a is continuous with the second plane 22. The width Wd4 of the protrusion 24 is the same as or slightly larger than the width Wd0 of the groove 150.

[0091] The wire harness 1 including the resin member 2L is routed while inserting the protrusion 24 of the resin member 2L into the groove 150. The protrusion 24 is held by the pair of ribs 140. The main body 20 is routed outside the groove 150 along the extending direction of the groove 150.

[0092] The main body 20 of the resin member 2L has a long side direction D1 and a short side direction D2. Figure 14 As shown, the resin member 2L is fixed to the groove portion 150 so that one first flat surface 21 faces the layout surface 110 .

[0093] The width Wd1 of the main body 20 of the resin component 2 is determined by the number of wires W held by the main body 20 and the diameter of the wires W. In contrast, the value of the width Wd0 of the groove 150 is determined by, for example, the design requirements of the vehicle 100. Even when the width Wd0 of the groove 150 is smaller than the width Wd1 of the main body 20, the resin component 2L can be fixed to the component 120.

[0094] In addition, according to the resin component 2L having the protrusion 24, it is possible to achieve a thinner layout space in the depth direction of the groove 150. For example, when attempting to insert the main body 20 into the groove 150, the main body is inserted into the groove 150 with the second plane 22 facing the layout surface 110. In this case, the width Wd2 of the main body 20 in the short side direction D2 is determined according to the width Wd0 of the groove 150. In addition, the width Wd1 in the long side direction D1 is determined according to the width Wd2. As a result, the size of the resin component 2 in the depth direction of the groove 150 may become larger. On the other hand, in the resin component 2L having the protrusion 24, the widths Wd1 and Wd2 of the main body 20 can be determined without being restricted by the width Wd0 of the groove 150.

[0095] The wire harness 1 may include a plurality of resin members having mutually different cross-sectional shapes. Figure 15The wire harness 1 shown includes three types of resin members 2A, 2M, and 200 having mutually different cross-sectional shapes.

[0096] The resin components 2A and 2M are the resin components 2 according to this embodiment. The main body 20 of the resin component 2A has Figure 2 The cross-sectional shape of the rectangle is shown. Figure 16 As shown, the main body 20 of the resin member 2M has a trapezoidal cross-sectional shape. The main body 20 has a long side direction D1 and a short side direction D2. The main body 20 of the resin member 2M has two first flat surfaces 21 and two side surfaces 25.

[0097] The two first planes 21 correspond to the base of a trapezoid. In the exemplary resin component 2M, the base is oriented in the longitudinal direction D1. The two side surfaces 25 correspond to the hypotenuse of the trapezoid. The two side surfaces 25 may have the same inclination angle θ relative to the first plane 21, or may have different inclination angles θ.

[0098] The resin member 200 has a cylindrical shape along the axial direction X. That is, the shape of the resin member 200 in a plane perpendicular to the axial direction X is circular. The cross-sectional shape of the resin member 200 may also be elliptical. The shape of the resin members 2A, 2M, and 200 is selected based on the cross-sectional shape of the path at each position of the layout path.

[0099] As described above, the wire harness 1 of this embodiment includes a plurality of wires W and a resin component 2. The resin component 2 includes a main body 20 that covers the plurality of wires W and is integrally molded with the plurality of wires W. The main body 20 has a flat cross-sectional shape along a plane perpendicular to the axial direction X of the wires W, having a longitudinal direction D1 and a transverse direction D2. The main body 20 has at least one of a first plane 21 extending along the longitudinal direction D1 and a second plane 22 extending along the transverse direction D2.

[0100] When the main body 20 has a first plane 21, the wire harness 1 can be arranged so that the first plane 21 of the main body 20 is opposite to the layout surface 110. As a result, it is possible to achieve a thinning of the layout space of the wire harness 1 in a direction orthogonal to the layout surface 110. When the main body 20 has a second plane 22, the wire harness 1 can be arranged so that the second plane 22 of the main body 20 is opposite to the layout surface 110. As a result, it is possible to achieve a thinning of the layout space of the wire harness 1 in the direction along the layout surface 110. Therefore, according to the wire harness 1 of this embodiment, it is possible to achieve a thinning of the layout space.

[0101] The resin member 2 functions as an exterior member that protects the plurality of wires W. When the resin member 2 is assembled in the groove portion 150 or the like, the resin member 2 functions as a fixing member that fixes the plurality of wires W to the routing surface 110. Furthermore, the resin member 2 functions as a bundling member that bundles the plurality of wires W.

[0102] The cross-sectional shape of the main body 20 is, for example, a rectangle. A plurality of wires W may be arranged along the longitudinal direction D1 inside the main body 20. By arranging the plurality of wires W along the longitudinal direction D1, the resin member 2 can be made thinner.

[0103] In the main body 20 , corners on both sides sandwiching a plane may have a chamfered shape. The main body 20 having a chamfered shape can facilitate the insertion operation of the main body 20 into the groove 150 .

[0104] The resin member 2 may include a protrusion 24 that protrudes from one plane of the main body 20. The protrusion 24 may include, for example, two parallel surfaces 24a extending along the protruding direction of the protrusion 24. The resin member 2 including the protrusion 24 allows the size of the main body 20 to be set without being restricted by the width Wd0 of the groove 150.

[0105] The wire harness 1 has, for example, a plurality of resin members 2. In this case, a plurality of electric wires W are exposed between two adjacent resin members 2. The wire harness 1 in which the electric wires W are exposed between the two resin members 2 can be easily deformed according to the routing path.

[0106] A portion of the wires W4 among the plurality of wires W can be drawn out as branch lines from between two adjacent resin members 2G and 2H. The wires W on both sides of the branch portion are held by the resin member 2, so that the shape of the wire harness 1 is easily stabilized.

[0107] The multiple resin components 2 can have the same cross-sectional shape in a plane perpendicular to the axial direction X of the wire W. This allows for commonality in the mold for molding the resin components 2, thereby reducing costs. For example, when a portion of the wire W4 is drawn out between two resin components 2G and 2H as a branch line, the two resin components 2G and 2H can have the same cross-sectional shape.

[0108] The plurality of wires W may include the wires W of the first sub-wiring harness S1 and the wires W of the second sub-wiring harness S2. In this case, one resin member 2 is molded for both the first sub-wiring harness S1 and the second sub-wiring harness S2. The resin member 2 functions as a bundling member that gathers the two sub-wiring harnesses S1 and S2.

[0109] The wiring harness 1 may include only one resin component 2. For example, the wiring harness 1 may include an elongated resin component 2 extending along the axial direction X of the wires W. Within a single resin component 2, the widths Wd1 and Wd2 may vary depending on the position in the axial direction X. For example, if the width Wd0 of the groove 150 changes midway along the routing path, the main body 20 of the resin component 2 may have a wide portion and a narrow portion.

[0110] When the resin member 2 has the protrusion 24 , one resin member 2 may have a plurality of protrusions 24 . For example, one resin member 2 may have a plurality of protrusions 24 arranged in the extending direction of the groove 150 .

[0111] The protrusion 24 may be inserted into a recess provided in the component 120. For example, the component 120 may have a plurality of recesses arranged at intervals along the routing path of the wire harness 1. In this case, the plurality of protrusions 24 may be inserted into the corresponding recesses.

[0112] When the main body 20 of the resin component 2 has two first flat surfaces 21, the two first flat surfaces 21 do not need to be parallel. For example, when the resin component 2 is arranged so that the first flat surfaces 21 face the installation surface 110, the installation space may be limited in a direction perpendicular to the installation surface 110. In this case, one first flat surface 21 may be inclined relative to the other first flat surface 21. Similarly, when the main body 20 of the resin component 2 has two second flat surfaces 22, the two second flat surfaces 22 do not need to be parallel.

[0113] The object into which the resin component 2 may be inserted is not limited to the grooves 150 formed between the ribs 140. For example, a recess or groove into which the resin component 2 can be inserted may be formed in the component 120. Furthermore, the resin component 2 may be inserted between two opposing surfaces. For example, the resin component 2 may be inserted into a gap formed between two components.

[0114] The wire harness 1 disclosed in the above embodiment can be fixed to the vehicle 100 by inserting the resin member 2 into the recess or the facing surface. No drilling or thread cutting is required for fixing in the vehicle 100, thus reducing the manufacturing cost of the vehicle.

[0115] The contents disclosed in the above-mentioned embodiments can be implemented in combination as appropriate.

Claims

1. A wiring harness, characterized in that: have: Multiple electrical wires; and a resin component having a main body covering the plurality of wires and being integrally molded with the plurality of wires; The cross-sectional shape of the main body in a plane perpendicular to the axial direction of the electric wire is a flat shape having a long side direction and a short side direction, and The main body has at least one of a first plane extending in the long-side direction and a second plane extending in the short-side direction.

2. The wiring harness according to claim 1, wherein: The cross-sectional shape of the main body is rectangular, and The plurality of electric wires are arranged along the longitudinal direction inside the main body.

3. The wiring harness according to claim 1, wherein: In the main body, corners on both sides sandwiching a flat surface have chamfered shapes.

4. The wiring harness according to claim 1, wherein: The resin member has a protrusion protruding from one plane of the main body, and The protrusion has two parallel surfaces along a protruding direction of the protrusion.

5. The wiring harness according to claim 1, wherein having a plurality of the resin parts, The plurality of electric wires are exposed between two adjacent resin members.

6. The wiring harness according to claim 5, characterized in that Some of the plurality of electric wires are drawn out as branch lines from between two adjacent resin members.

7. The wiring harness according to claim 5, characterized in that The plurality of resin members have the same cross-sectional shape in a plane perpendicular to the axial direction of the electric wire.

8. The wire harness according to claim 1, wherein The plurality of electric wires include electric wires of a first sub-wiring harness and electric wires of a second sub-wiring harness, and The one resin member is molded for both the first sub-harness and the second sub-harness.

Citation Information

Patent Citations

  • Wire harness

    JP2023066801A