Wire harness

Abstract

To provide a wire harness that can improve fittability.SOLUTION: A wire harness WH is provided with: a main line module 10 having a flexible substrate 11 having flexibility and a branch line module 20 having electric wire connected to the flexible substrate 11. The flexible substrate 11 is arranged along a reinforce 111 provided in an instrument panel 110 to extend in a vehicle width direction of a vehicle, and is fitted to the reinforce 111.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] BACKGROUND ART As a conventional technique relating to a wire harness, for example, as described in Patent Document 1, a wire harness to be mounted on a vehicle and using a flexible substrate having flexibility is known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-110246 Summary of the Invention [Problem to be solved by the invention]

[0004] Such wire harnesses have room for improvement in terms of ease of assembly to a vehicle. For example, flexible printed circuits are difficult to stably assemble to a vehicle body, etc., because they are flexible and easily deformed.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a wire harness that can be easily assembled. [Means for solving the problem]

[0006] That is, the wire harness of the present invention comprises a trunk module having a flexible substrate having flexibility, and a branch module having electric wires connected to the flexible substrate, and the flexible substrate is arranged along a reinforcement provided in an instrument panel and extending in the width direction of the vehicle, and is assembled to the reinforcement. [Effects of the Invention]

[0007] According to the wire harness of the present invention, it is possible to improve the ease of assembly. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a wire harness according to a first embodiment. [Figure 2] FIG. 2 is an exemplary schematic plan view of the wire harness according to the first embodiment. [Figure 3] FIG. 3 is a perspective view of the wire harness according to the second embodiment. [Figure 4] FIG. 4 is a perspective view of a wire harness according to the third embodiment. [Figure 5] FIG. 5 is a perspective view of a wire harness according to the fourth embodiment. [Figure 6] FIG. 6 is an exploded perspective view of the wire harness according to the fourth embodiment. [Figure 7] FIG. 7 is an explanatory diagram of a clamp in a wire harness according to the fourth embodiment. [Figure 8] FIG. 8 is a perspective view of the wire harness according to the fifth embodiment. [Figure 9] FIG. 9 is an exploded perspective view of the wire harness according to the fifth embodiment. [Figure 10] FIG. 10 is an explanatory diagram of a clamp in a wire harness according to the fifth embodiment. [Figure 11] FIG. 11 is a perspective view of a wire harness according to the sixth embodiment. [Figure 12] FIG. 12 is an explanatory diagram of a flexible substrate in a wire harness according to the sixth embodiment. [Figure 13] FIG. 13 is an explanatory diagram of a protection plate in a wire harness according to the sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially the same.

[0010] [Embodiment] This embodiment relates to a wire harness. In the following description, of the first, second, and third directions that intersect with each other, the first direction is referred to as the "extension direction X," the second direction is referred to as the "width direction Y," and the third direction is referred to as the "height direction Z." Here, the extension direction X, width direction Y, and height direction Z are perpendicular to each other. The extension direction X corresponds to the extension direction and longitudinal direction of the flexible substrate of the trunk module. The width direction Y corresponds to the width direction of the flexible substrate of the trunk module. The height direction Z corresponds to the thickness direction of the flexible substrate of the trunk module. The width direction Y and height direction Z correspond to intersecting directions that intersect with the extension direction X. Furthermore, unless otherwise specified, each direction used in the following description represents the direction when each part is assembled to each other. Note that orthogonal here includes nearly orthogonal.

[0011] A wire harness according to a first embodiment will be described.

[0012] FIG. 1 is a perspective view of a wire harness WH according to the first embodiment, illustrating a state in which the wire harness WH is assembled to a vehicle 100. For example, the wire harness WH is installed and used inside an instrument panel 110 of the vehicle 100. The instrument panel 110 is an interior panel that is arranged at the front of the vehicle interior along the vehicle width direction so as to face the driver's seat and passenger seat of the vehicle 100. Note that in FIG. 1, the instrument panel 110 is indicated by a two-dot chain line. The wire harness WH connects devices mounted on the vehicle 100 and is used for power supply and signal communication. A reinforcement 111 is provided inside the instrument panel 110. The reinforcement 111 is a structural member or reinforcing member that is installed inside the instrument panel 110 and is provided along the vehicle width direction (extension direction X). The reinforcement 111 is also referred to as a reinforcement, a reinforce, or a reinforcement. The reinforcement 111 is formed, for example, by a hollow metal pipe, and has flanges 112 formed at both ends. One flange 112 is fixed to the left side of the body of the vehicle 100, and the other flange 112 is fixed to the right side of the body of the vehicle 100.

[0013] The wire harness WH includes a trunk module 10 and multiple branch modules 20. The trunk module 10 is a wiring module having multiple transmission lines or wiring extending in the same direction, and is connected to, for example, a control unit. The trunk module 10 includes a flexible substrate 11 and multiple trunk-side connectors 12. The flexible substrate 11 is a planar circuit body having a planar circuit, and is called a flexible printed circuit board (FPC), which is a flexible printed wiring board. The term "planar" as used here also includes a substantially planar shape. The flexible substrate 11 is formed, for example, by bonding a base film, a conductor foil, and a coverlay together via an adhesive layer. The conductor foil is the wiring pattern of the flexible substrate 11 and constitutes the wiring portion of the flexible substrate 11. The flexible substrate 11 may be a single-sided substrate having a wiring pattern on only one side of the base film, or a double-sided substrate having wiring patterns on both sides of the base film. Furthermore, flexible substrate 11 may or may not have electrical components such as resistors and capacitors mounted on the wiring pattern.

[0014] Here, the trunk module 10 is connected to an ECU (Electronic Control Unit) 51 via one of a plurality of trunk side connectors 12, and is connected to a branch module 20 via the other trunk side connectors 12. The ECU 51 here is a first control unit, and is typically, but not limited to, a zone ECU that comprehensively controls devices in a peripheral area (zone) of the instrument panel 110. The trunk side connector 12 is a connector attached to an end of the flexible substrate 11.

[0015] Each of the branch line modules 20 is a wiring module having one end connected to the trunk line connector 12 of the trunk line module 10 and the other end connected to various electronic devices 40 in the vehicle 100. Each branch line module 20 includes a plurality of electrically conductive wiring materials 21 (see FIG. 2 ), a branch line first connector 22 provided at one end of each of the wiring materials 21 and mechanically and electrically connected to each of the trunk line connectors 12, and a branch line second connector 23 provided at the other end of each of the wiring materials 21 and mechanically and electrically connected to various electronic devices 40 in the vehicle 100. The wiring materials 21 are, for example, electric wires having a conductor portion formed by twisting together a plurality of linear metal wires and an insulating coating portion covering the outside of the conductor portion. The wire harness WH may also include a special electric wire 30. The special electric wire 30 is an electric wire for transmitting signals or power that are difficult to transmit properly using a flexible substrate 11, and is used, for example, for transmitting high-speed communication signals or high-current power. The special electric wire 30 is routed, for example, along the reinforcement 111.

[0016] 2 is a schematic plan view of the wire harness WH. The flexible substrate 11 is formed as a whole in a rectangular shape that is long horizontally in the vehicle width direction. That is, the flexible substrate 11 has a pair of first end portions 11a as long sides and a pair of second end portions 11b as short sides. The first end portions 11a are end portions on both sides of the flexible substrate 11 in the vehicle front-rear direction (width direction Y in FIG. 2), and the second end portions 11b are end portions on both sides of the flexible substrate 11 in the vehicle width direction (extension direction X in FIG. 2). In this embodiment, one or more of the multiple trunk line side connectors 12 are provided at each of the first end portion 11a and the second end portion 11b of the flexible substrate 11.

[0017] Specifically, the trunk module 10 has, for example, seven trunk side connectors 12. Here, four trunk side connectors 12 are provided at one of the pair of first end portions 11a at intervals in the vehicle width direction, and one trunk side connector 12 is provided at the other of the pair of second end portions 11b. One trunk side connector 12 is provided at one of the pair of second end portions 11b, and one trunk side connector 12 is provided at the other of the pair of second end portions 11b. Six of these trunk side connectors 12 are connected to the branch module 20 via the above-mentioned branch side first connectors 22, and the remaining one is connected to the ECU 51 via an ECU side connector. Note that the specifications of the trunk side connectors 12, such as the number of poles, and the arrangement of the trunk side connectors 12 on the flexible substrate 11, can be changed as appropriate to suit the installation position of the wire harness WH in the vehicle 100, etc.

[0018] 1, the flexible substrate 11 is arranged along the reinforcement 111 and is assembled to the reinforcement. For example, the flexible substrate 11 may be assembled directly to the reinforcement 111, or may be attached via another member. The flexible substrate 11 is attached to the reinforcement 111 with the back side facing the front side of the reinforcement 111, for example.

[0019] One end of the flexible substrate 11 extends to the position of one end 111A of the reinforcement 111, and the other end extends to a position between the center position 111B and the other end 111C of the reinforcement 111. For example, one end of the flexible substrate 11 extends beyond the position of one end 111A of the reinforcement 111 to the position of the ECU 51. The other end of the flexible substrate 11 extends to a position beyond the center position 111B of the reinforcement 111 and is connected to a first electric wire module 201. The first electric wire module 201 is part of the branch wire module 20 and has a wiring material 21 that is an electric wire. After being routed along the reinforcement 111, the first electric wire module 201 deviates from the reinforcement 111 and is connected to the ECU 52. The ECU 52 is a second control unit, and is typically, but not limited to, a zone ECU that comprehensively controls devices in a peripheral area (zone) of the instrument panel 110.

[0020] Next, the assembly of the wire harness WH according to this embodiment will be described.

[0021] As shown in FIG. 1 , the wire harness WH according to this embodiment uses a flexible substrate 11 in a trunk module 10. The flexible substrate 11 is arranged and assembled along reinforcements 111. Therefore, the wire harness WH according to this embodiment can eliminate three-dimensional routing of the flexible substrate 11, making it easier to assemble the flexible substrate 11. That is, the wire harness WH according to this embodiment does not require three-dimensional routing of the flexible substrate 11, and therefore can easily assemble the flexible substrate 11, which does not have high rigidity and strength. Therefore, the wire harness WH according to this embodiment can improve assembly ease.

[0022] Furthermore, in the wire harness WH according to this embodiment, the flexible substrate 11 is assembled along the surface of the reinforcement 111, thereby making it possible to reduce or slim down the installation space of the trunk module 10. This allows for effective use of the interior space of the vehicle.

[0023] In the wire harness WH according to this embodiment, the flexible substrate 11 is installed in the trunk module 10 from one end 111A of the reinforcement 111 to a position between the central position 111B and the other end 111C. That is, in the wire harness WH according to this embodiment, by partially using the flexible substrate 11 for the reinforcement 11 in the trunk module 10, the amount of costly flexible substrate 11 used can be reduced, while the wire harness WH can be formed thin in the height direction around the driver's seat and the central position. Therefore, the wire harness WH according to this embodiment can reduce the size of the instrument panel 110. That is, the wire harness WH according to this embodiment can reduce or slim the installation space for the wire harness WH in the section behind the steering wheel and the center of the vehicle inside the instrument panel 110. Therefore, the wire harness WH according to this embodiment can contribute to the need to reduce the height of the instrument panel 110.

[0024] As described above, in the wire harness WH of this embodiment, the flexible substrate 11 is assembled to the reinforcement 111, which eliminates three-dimensional routing of the flexible substrate and facilitates assembly of the flexible substrate 11. Therefore, the wire harness WH of this embodiment can improve assembly performance.

[0025] In addition, by partially using a flexible substrate 11 for the reinforcement 111 in the main module 10, the wire harness WH of this embodiment can be formed thin in the vertical direction at the driver's seat and central position while reducing the amount of costly flexible substrate 11 used, thereby making it possible to reduce the size of the instrument panel 110.

[0026] Next, a wire harness according to a second embodiment will be described.

[0027] FIG. 3 is a perspective view of a wire harness WHA according to the second embodiment, showing the state in which it is assembled to a vehicle 100. The wire harness WHA according to the second embodiment is configured substantially similarly to the wire harness WH according to the first embodiment described above, but the installation range of the flexible substrate 11 relative to the reinforcement 111 in the trunk module 10 is different. That is, in the wire harness WHA according to the second embodiment, the flexible substrate 11 is arranged from the position of one end 111A of the reinforcement 111 to the position of the other end 111C. In other words, the flexible substrate 11 is installed over the entire section of the reinforcement 111. Here, the entire section includes almost the entire section.

[0028] A first electric wire module 201 is connected to the other end of the flexible substrate 11, and a second electric wire module 202 is connected to one end. The first electric wire module 201 and the second electric wire module 202 are wiring modules that use a wiring material 21, which is an electric wire, as a transmission line. The first electric wire module 201 is connected to the flexible substrate 11 at the position of an end 111C of the reinforcement 111, and is disposed apart from the reinforcement 111, and is connected to, for example, the ECU 52. The second electric wire module 202 is connected to the flexible substrate 11 at the position of an end 111A of the reinforcement 111, and is disposed apart from the reinforcement 111, and is connected to, for example, the ECU 51.

[0029] The wire harness WHA according to the second embodiment has excellent assemblability and can be easily assembled to a vehicle. That is, the wire harness WHA according to the second embodiment has high routing property and can be easily mounted on a vehicle by applying the flexible substrate 11 to the linear section of the reinforcement 111 in the trunk module 10.

[0030] As described above, the wire harness WHA according to the second embodiment can improve assembly by using the flexible substrate 11 in the section of the trunk module 10 that is routed on the reinforcement 111.

[0031] Next, a wire harness WHB according to a third embodiment will be described.

[0032] FIG. 4 is a perspective view of a wire harness WHB according to the third embodiment, showing a state where the wire harness WHB is assembled to a vehicle 100. The wire harness WHB according to the third embodiment is configured substantially similarly to the wire harness WH according to the first embodiment described above, but differs in the installation range of the flexible substrate 11 relative to the reinforcement 111 in the main module 10. That is, as shown in FIG. 4, in the wire harness WHA according to the third embodiment, the flexible substrate 11 is installed in the entire section of the main module 10. For example, when the main module 10 is installed from the ECU 51 to the ECU 52, the flexible substrate 11 is installed in the entire section between the ECU 51 and the ECU 52.

[0033] The flexible substrate 11 has a straight portion 11C and a bent portion 11D. The straight portion 11C is a portion formed in a straight line and is arranged over the entire section from one end 111A of the reinforcement 111 to the other end 111C. The bent portion 11D is a portion that is arranged by folding back the end of the straight portion 11C and facing downward, and its end is connected to the ECU 51 or the ECU 52. The bent portion 11D extends, for example, by folding back the end of the straight portion 11C obliquely and bending it downward.

[0034] In the wire harness WHB according to the third embodiment, the flexible substrate 11 is provided over the entire length of the trunk module 10, thereby reducing the number of trunk-side connectors 12 attached to the flexible substrate 11. Furthermore, in the wire harness WHB according to the third embodiment, the flexible substrate 11 is provided over the entire length of the trunk module 10, thereby allowing the trunk module 10 to be formed thin. That is, since the trunk module 10 has many transmission lines, if the trunk module 10 is formed by bundling electric wires, it will be large and thick. In contrast, in the wire harness WHB according to the third embodiment, the trunk module 10 can be formed thinner than if it were formed by bundling electric wires.

[0035] As described above, in the wire harness WHB according to the third embodiment, the flexible substrate 11 is provided over the entire section of the trunk module 10, thereby making it possible to reduce the number of connection points of the connectors.

[0036] Next, a wire harness according to a fourth embodiment will be described.

[0037] FIG. 5 is a perspective view of a wire harness WHC according to the fourth embodiment, illustrating a state in which the wire harness WHC is assembled to a vehicle 100. The wire harness WHC according to the fourth embodiment is configured substantially similarly to the wire harness WHA according to the second embodiment described above, but differs in that it includes a first protective plate 61. That is, the wire harness WHC according to the fourth embodiment includes the first protective plate 61 that protects the flexible substrate 11 in the trunk module 10. The first protective plate 61 is a rectangular plate that extends long in one direction and is formed of a material that is more rigid than the flexible substrate 11. For example, the first protective plate 61 is formed of a resin. More specifically, the first protective plate 61 is formed of a resin whose main component is polyethylene and is plastically deformable. That is, when the first protective plate 61 is deformed depending on the installation location, it can retain the deformed shape.

[0038] As shown in FIG. 6, the first protective plate 61 is formed to have the same size or approximately the same size as the flexible substrate 11, and is disposed on the reinforcement 111 side of the flexible substrate 11. For example, the flexible substrate 11 is attached to the first protective plate 61 using an adhesive, double-sided tape, or the like. As shown in FIG. 7, the first protective plate 61 is attached to the reinforcement 111 using, for example, a clamp 63. The clamp 63 is inserted into the reinforcement 111 and fixed to the reinforcement 111. The clamp 63 is attached to the first protective plate 61 by adhesive bonding or by wrapping tape around it.

[0039] The flexible substrate 11 is disposed, for example, from the position of one end 111A of the reinforcement 111 to the position of the other end 111C. In other words, the flexible substrate 11 is disposed over the entire section of the reinforcement 111. Note that the flexible substrate 11 may also be disposed over only a portion of the section of the reinforcement 111.

[0040] In the wire harness WHC according to the fourth embodiment, the first protective plate 61 is attached to the flexible substrate 11, thereby protecting the flexible substrate 11. Furthermore, in the wire harness WHC according to the fourth embodiment, the flexible substrate 11 is attached to the reinforcement 111 via the first protective plate 61, thereby stably attaching the flexible substrate 11. Furthermore, in the wire harness WHC according to the fourth embodiment, the flexible substrate 11 has a plate shape, so the first protective plate 61 can be formed in a simple plate shape, thereby enabling a protector for the flexible substrate 11 to be provided at low cost. Furthermore, in the wire harness WHC according to the fourth embodiment, the first protective plate 61 is formed from resin, so that the first protective plate 61 can be easily bent and retain its shape, thereby improving the ease of assembly to the reinforcement 11. Furthermore, in the wire harness WHC according to the fourth embodiment, the first protective plate 61 is attached to the flexible substrate 11, thereby stably attaching the flexible substrate 11, thereby facilitating automation of assembly to a vehicle.

[0041] As described above, the wire harness WHC of the fourth embodiment is provided with a first protective plate 61 attached to the flexible substrate 11, thereby physically protecting the flexible substrate 11 and allowing it to be properly assembled to the reinforcement 111.

[0042] Furthermore, the wire harness WHC according to the fourth embodiment includes the clamp 63 fixed to the reinforcement 111, and therefore the flexible substrate 11 can be attached to the reinforcement 111 using the clamp 63.

[0043] Next, a wire harness according to a fifth embodiment will be described.

[0044] FIG. 8 is a perspective view of a wire harness WHD according to a fifth embodiment. The wire harness WHC according to the fourth embodiment is configured substantially similarly to the wire harness WHC according to the fourth embodiment described above, but differs in that it includes a second protective plate 62. That is, the wire harness WHD according to the fifth embodiment includes a second protective plate 62 that protects the flexible substrate 11 in the trunk module 10. The second protective plate 62 is a rectangular plate extending long in one direction and is formed of a material with higher rigidity than the flexible substrate 11. For example, the second protective plate 62 is formed of a resin. More specifically, the second protective plate 62 is formed of a resin whose main component is polyethylene and is plastically deformable. That is, when the second protective plate 62 is deformed depending on the installation location, it can retain the deformed shape.

[0045] 9 and 10 , the second protective plate 62 is formed to have the same size or approximately the same size as the flexible substrate 11, and is disposed on the opposite side of the flexible substrate 11 from the reinforcement 111. That is, the second protective plate 62 and the first protective plate 61 sandwich and protect the flexible substrate 11. For example, the second protective plate 62 is attached to the flexible substrate 11 using an adhesive, double-sided tape, or the like. In addition, tape 64 is wrapped around and attached to the peripheries of the first protective plate 61 and the second protective plate 62. This tape 64 integrates the first protective plate 61, the second protective plate 62, and the flexible substrate 11, and prevents the first protective plate 61 and the second protective plate 62 from coming off the flexible substrate 11.

[0046] The flexible substrate 11 is disposed, for example, from the position of one end 111A of the reinforcement 111 to the position of the other end 111C. In other words, the flexible substrate 11 is disposed over the entire section of the reinforcement 111. Note that the flexible substrate 11 may also be disposed over only a portion of the section of the reinforcement 111.

[0047] In addition to the effects of the wire harness WHC according to the third embodiment, the wire harness WHD according to the fifth embodiment can more appropriately protect the flexible substrate 11 by including the second protective plate 62 that sandwiches and protects the flexible substrate 11 together with the first protective plate 61. Furthermore, the wire harness WHD according to the fifth embodiment can prevent the first protective plate 61 and the second protective plate 62 from coming off the flexible substrate 11 by attaching the first protective plate 61 and the second protective plate 62 by wrapping tape 64 around them.

[0048] As described above, the wire harness WHD of the fifth embodiment is provided with the second protective plate 62 that sandwiches and protects the flexible substrate 11 together with the first protective plate 61, thereby being able to adequately protect the flexible substrate 11.

[0049] Next, a wire harness according to a sixth embodiment will be described.

[0050] 11 is a perspective view of a wire harness WHE according to the sixth embodiment. The wire harness WHE according to the sixth embodiment is configured in substantially the same manner as the wire harness WHD according to the fifth embodiment described above, but differs in that the flexible substrate 11 is disposed over the entire section of the reinforcement 111, and the flexible substrate 11 is provided beyond the range of the reinforcement 111. Furthermore, in the wire harness WHE according to the sixth embodiment, a first protective plate 61 and a second protective plate 62 are attached to sandwich the flexible substrate 11 even with respect to the flexible substrate 11 provided beyond the range of the reinforcement 111.

[0051] As shown in Fig. 12, the flexible substrate 11 of the wire harness WHE has a straight portion 11C and a bent portion 11D. The straight portion 11C is a portion formed in a straight line and is arranged over the entire section from one end 111A of the reinforcement 111 to the other end 111C. The bent portion 11D is a portion formed by folding back an end of the straight portion 11C and oriented downward. The bent portion 11D is formed, for example, by folding back an end of the straight portion 11C obliquely and bending it downward to extend.

[0052] In the wire harness WHE according to the sixth embodiment, the flexible substrate 11 is provided over the entire section of the trunk module 10, which reduces the number of trunk-side connectors 12 attached to the flexible substrate 11. Furthermore, in the wire harness WHE according to the sixth embodiment, the flexible substrate 11 is provided over the entire section of the trunk module 10, which allows the trunk module 10 to be formed thin.

[0053] 13, the first protective plate 61 has a straight portion 61A and a bent portion 61B so as to fit along the flexible substrate 11 having a straight portion 11C and a bent portion 11D. The straight portion 61A is a portion formed in a straight line and is disposed over the entire section from one end 111A to the other end 111C of the reinforcement 111. The bent portions 61B are provided at both ends of the straight portion 61A, and are portions that are bent at each end and hang down.

[0054] Similarly to the first protective plate 61, the second protective plate 62 has a straight portion 62A and a bent portion 62B so as to fit along the flexible substrate 11 having the straight portion 11C and the bent portion 11D. The straight portion 62A is a portion formed in a straight line, and is disposed over the entire section from one end 111A to the other end 111C of the reinforcement 111. The bent portions 62B are provided at both ends of the straight portion 62A, and are portions that are bent at each end and hang down.

[0055] Such first protective plate 61 and second protective plate 62 can sandwich and protect flexible substrate 11 having straight portion 11C and bent portion 11D.

[0056] As described above, the wire harness WHE of the sixth embodiment can reliably protect the flexible substrate 11 even when the flexible substrate 11 is bent, by being provided with the first protective plate 61 and the second protective plate 62 that sandwich and protect the flexible substrate 11.

[0057] Furthermore, in the wire harness WHE according to the sixth embodiment, when the flexible substrate 11 is provided in a bent state, the first protective plate 61 and the second protective plate 62 bend in accordance with the bent shape of the flexible substrate 11 to sandwich and protect the flexible substrate 11. Therefore, the wire harness WHE according to the sixth embodiment can reliably protect the flexible substrate 11.

[0058] While the embodiments of the present invention have been described above, they are merely examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in various other forms, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the invention. Furthermore, the specifications of each configuration, shape, and the like (structure, type, direction, format, size, length, width, thickness, height, number, arrangement, position, material, etc.) can be modified as appropriate. [Explanation of symbols]

[0059] 10: Trunk module 11: Flexible board 20: Branch line module 51: ECU (first control unit, control unit) 52: ECU (second control unit, control unit) 61:First protection plate 62:Second protection plate 63: Clamp 100: Vehicle I10: Instrument panel 111: Reinforce 111A: End 111B: Central position 111C: End 201: First wire module 202: Second wire module WH, WHA, WHB, WHC, WHD, WHE: Wire harness

Claims

1. a trunk module having a flexible substrate; a branch line module having an electric wire connected to the flexible substrate, the flexible substrate is disposed along a reinforcement provided in an instrument panel and extending in a vehicle width direction of the vehicle, and is assembled to the reinforcement, one end of which extends to a position of one end of the reinforcement, and the other end of which extends to a position between a central position of the reinforcement and a position of the other end, a first wire module connected to the other end of the flexible substrate and having an electric wire; Wire harness.

2. A trunk module having a flexible substrate; a branch line module having an electric wire connected to the flexible substrate, The flexible substrate is disposed along a reinforcement provided in an instrument panel and extending in a vehicle width direction of the vehicle, is assembled to the reinforcement, and extends from a position of one end of the reinforcement to a position of the other end of the reinforcement, a first wire module connected to one end of the flexible substrate and having a wire; a second wire module connected to the other end of the flexible substrate and having an electric wire; Wire harness.

3. A trunk module having a flexible substrate; a branch line module having an electric wire connected to the flexible substrate, The flexible substrate is disposed along a reinforcement member provided in an instrument panel and extending in a vehicle width direction of the vehicle, and is assembled to the reinforcement member; The trunk module includes a first protective plate attached to the reinforcement side of the flexible substrate. Wire harness.

4. The trunk module is provided with the flexible substrate over the entire section, The flexible substrate has one end connected to a first control unit and the other end connected to a second control unit. The wire harness according to claim 2 or 3.

5. The first control unit and the second control unit are arranged at positions offset in a direction intersecting the extension direction of the reinforcement, One end of the flexible substrate is bent on the reinforcement to connect to the first control unit, and the other end is bent on the reinforcement to connect to the second control unit. The wire harness according to claim 4.

6. A clamp is attached to the first protective plate and fixed to the reinforcement. The wire harness according to claim 3 .

7. The trunk module is attached to the opposite side of the flexible substrate from the reinforcement and includes a second protective plate that sandwiches and protects the first protective plate and the flexible substrate. The wire harness according to claim 3 .

8. The trunk module is connected at least at one end to a control unit disposed at a position offset in a direction intersecting the extension direction of the reinforcement, The flexible substrate is connected to the control unit by bending the one end over the reinforcement, the first protective plate and the second protective plate bend in accordance with the bending shape of the flexible substrate, and sandwich and protect the flexible substrate; The wire harness according to claim 7.

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