Wiring harness

Abstract

To provide a wire harness capable of improving a yield of a flat wiring material.SOLUTION: A wire harness 1 includes: a flat wiring member 100; a first case 10 that accommodates a first portion 110 of the flat wiring member; and a second case 20 that accommodates a second portion 120 of the flat wiring member. The first portion and the second portion extend in the same extending direction X, and the first case has a first support wall that supports the first portion and a first side wall 14 that stands from the first support wall and extends in the extending direction. The second case has a second support wall that supports the second portion and a second side wall 23 that stands from the second support wall and extends in the extending direction. The first side wall is provided with a gap for dividing the first side wall into a plurality of first piece parts 14a aligned in the extending direction, and the second side wall is inserted into the gap and aligned on the same line as the plurality of first piece parts.SELECTED DRAWING: Figure 6

Description

[Technical Field]

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

[0002] Conventionally, there are flat wiring materials such as flexible printed circuit boards. Patent Document 1 discloses a flexible printed circuit board that can easily realize long wiring. The flexible printed circuit board of Patent Document 1 includes a first strip-shaped member and a second strip-shaped member each having a conductive portion and an insulating portion covering the conductive portion, and a first connecting member that connects a first end of the first strip-shaped member to a first end of the second strip-shaped member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-170699 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, it is being considered to house a portion of a long flat wiring material in a first case and the other portion in a second case. When one flat wiring material is housed in two cases, the shape of the flat wiring material must be set taking into account the gap between the two cases, which tends to lead to a decrease in the yield of the flat wiring material. It is desirable to be able to improve the yield of the flat wiring material in a wire harness that includes a flat wiring material and two cases.

[0005] An object of the present invention is to provide a wire harness that can improve the yield of flat wiring materials. [Means for solving the problem]

[0006] The wire harness of the present invention comprises a flat wiring material having a first portion, a second portion, and an intermediate portion, a first case accommodating the first portion, and a second case accommodating the second portion, wherein the first portion and the second portion extend in the same extension direction and are aligned in a width direction perpendicular to the extension direction, the intermediate portion connects an end of the first portion to an end of the second portion along the width direction, the first case has a first support wall supporting the first portion and a first side wall erected from the first support wall and extending in the extension direction, the second case has a second support wall supporting the second portion and a second side wall erected from the second support wall and extending in the extension direction, and the first side wall has a gap that divides the first side wall into a plurality of first pieces aligned in the extension direction, and the second side wall is inserted into the gap and is aligned on the same line as the plurality of first pieces. [Effects of the Invention]

[0007] In the wire harness according to the present invention, the first side wall of the first case has a gap that divides the first side wall into a plurality of first pieces aligned in the extension direction, and the second side wall of the second case is inserted into the gap and aligned on the same line as the plurality of first pieces. The wire harness according to the present invention has an effect of improving the yield of the flat wiring material. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view of a wire harness according to an embodiment. [Figure 2] FIG. 2 is a plan view of the flat wiring material according to the embodiment. [Figure 3] FIG. 3 is a plan view of the first case and the second case according to the embodiment. [Figure 4] FIG. 4 is a perspective view of the first case and the second case according to the embodiment. [Figure 5] FIG. 5 is a perspective view of the first case and the second case according to the embodiment. [Figure 6]FIG. 6 is a perspective view of the wire harness according to the embodiment. [Figure 7] FIG. 7 is a plan view of the wire harness according to the embodiment. [Figure 8] FIG. 8 is a plan view of the wire harness according to the embodiment. [Figure 9] FIG. 9 is a cross-sectional view of the wire harness according to the embodiment. [Figure 10] FIG. 10 is a perspective view of the wire harness according to the embodiment. [Figure 11] FIG. 11 is a perspective view of the wire harness according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a wire harness according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiment. Furthermore, components in the following embodiments include those that can be easily imagined by a person skilled in the art or those that are substantially the same.

[0010] [Embodiment] An embodiment will be described with reference to Fig. 1 to Fig. 11. The embodiment relates to a wire harness. Fig. 1 is a plan view of the wire harness according to the embodiment, Fig. 2 is a plan view of a flat wiring material according to the embodiment, Fig. 3 is a plan view of a first case and a second case according to the embodiment, Figs. 4 and 5 are perspective views of the first case and the second case according to the embodiment, Fig. 6 is a perspective view of the wire harness according to the embodiment, Figs. 7 and 8 are plan views of the wire harness according to the embodiment, Fig. 9 is a cross-sectional view of the wire harness according to the embodiment, and Figs. 10 and 11 are perspective views of the wire harness according to the embodiment.

[0011] As shown in Fig. 1, the wire harness 1 of this embodiment includes a flat wiring material 100, a first case 10, and a second case 20. The wire harness 1 may further include a plurality of bus bars 200. The wire harness 1 is applied to, for example, a battery pack mounted on a vehicle. In this case, each bus bar 200 is connected to an electrode of a battery cell included in the battery pack.

[0012] The flat wiring material 100 of this embodiment has a first portion 110, a second portion 120, and an intermediate portion 130. The first portion 110 and the second portion 120 extend in the same extension direction X and are aligned in a width direction Y perpendicular to the extension direction X. The intermediate portion 130 connects an end of the first portion 110 to an end of the second portion 120 along the width direction Y. The flat wiring material 100 has a slit 100s extending in the extension direction X to separate the first portion 110 and the second portion 120.

[0013] The first case 10 is a case that houses and holds the first part 110 of the flat wiring material 100. The second case 20 is a case that houses and holds the second part 120 of the flat wiring material 100. The first case 10 and the second case 20 are molded, for example, from an insulating synthetic resin.

[0014] In FIG. 1, the two cases 10, 20 are arranged side by side in the width direction Y. In this specification, with respect to the first case 10 and the second case 20, the relative position in which the two cases 10, 20 are arranged side by side in the width direction Y is referred to as the first relative position. As will be described later, the two cases 10, 20 of this embodiment can minimize the distance between the first case 10 and the second case 20 and the gap between the two cases 10, 20 at the first relative position. This reduces the width required for the slit 100s and improves the yield of the flat wiring material 100.

[0015] As shown in Fig. 2, the flat wiring material 100 of this embodiment has a substantially U-shape in plan view. The first portion 110 and the second portion 120 have substantially rectangular shapes in plan view. The middle portion 130 has a substantially trapezoidal shape in plan view. The middle portion 130 has a tapered shape that narrows as it moves away from the first portion 110 and the second portion 120 along the extension direction X.

[0016] The flat wiring material 100 is provided with branch portions 170 connected to the bus bar 200. The branch portions 170 extend from the first portion 110 and the second portion 120 in the width direction Y. The tip portions of the branch portions 170 are connected to the bus bar 200 by solder or the like.

[0017] The flat wiring material 100 is, for example, an FPC (flexible printed circuit board). When the flat wiring material 100 is an FPC, the flat wiring material 100 has a base film, a conductive layer, and a coverlay. The conductive layer is sandwiched and protected between the base film and the coverlay. The conductive layer is, for example, a conductive metal foil and has a circuit pattern including multiple detection lines 140. The flat wiring material 100 is flexible and can be folded and routed. The flat wiring material 100 has detection lines 140 extending from the first portion 110 through the middle portion 130 to the second portion 120.

[0018] The flat wiring material 100 is mounted with, for example, electronic components such as fuses and thermistors, and metal plate components. The U-shaped flat wiring material 100 enables the efficiency and cost reduction of the mounting process for mounting various components. A plurality of bus bars 200 are attached to the flat wiring material 100 of FIG. 2. The bus bars 200 are arranged along each of the first portion 110 and the second portion 120. The bus bars 200 are arranged at intervals along the extension direction X.

[0019] As shown in Figures 3 and 4, the first case 10 has a main body 11 and a cover 18. The main body 11 and the cover 18 are, for example, molded as a single unit. In the illustrated first case 10, the main body 11 and the cover 18 are connected via a hinge portion 11e. The main body 11 has a first support wall 11a, a first side wall 14, and a plurality of retaining portions 11c. The first support wall 11a is a wall portion that supports the first portion 110 of the flat wiring material 100. The first support wall 11a has a flat plate shape and extends along the extension direction X.

[0020] The first side wall 14 stands upright from the first support wall 11a and extends in the extension direction X. The first side wall 14 is disposed at an end of the first support wall 11a in the width direction Y. The first side wall 14 is an outer wall of the first case 10 and is located at an end of the first case 10 in the width direction Y. As shown in FIG. 4 , the first side wall 14 is divided into a plurality of first pieces 14a. The plurality of first pieces 14a are aligned in a row at intervals along the extension direction X. In other words, the first side wall 14 has gaps 14s that divide the first side wall 14 into a plurality of first pieces 14a aligned in the extension direction X.

[0021] The holding portion 11c holds the bus bar 200. The shape of the holding portion 11c in a plan view is approximately rectangular. The holding portion 11c has a peripheral wall 11f that is approximately C-shaped. The peripheral wall 11f may be provided with a protrusion for engaging the bus bar 200. The peripheral wall 11f includes an opposing wall 11g that faces the first side wall 14. The opposing wall 11g faces the first support wall 11a in the width direction Y, with the first support wall 11a therebetween. The opposing wall 11g has a slit that allows the branch portion 170 of the flat wiring material 100 to pass through.

[0022] 3, the cover 18 has an opposing wall 18a that covers the first support wall 11a. The first portion 110 of the flat wiring material 100 is accommodated and held between the first support wall 11a and the opposing wall 18a.

[0023] The second case 20 has a main body 21 and a cover 24. The main body 21 and the cover 24 are, for example, molded integrally. In the illustrated second case 20, the main body 21 and the cover 24 are connected via a hinge portion 21e. The main body 21 has a second support wall 21a, a second side wall 23, and a plurality of retaining portions 21c. The second support wall 21a is a wall portion that supports the second portion 120 of the flat wiring material 100. The second support wall 21a has a flat plate shape and extends along the extension direction X.

[0024] The second side wall 23 stands upright from the second support wall 21a and extends in the extension direction X. The second side wall 23 is disposed at an end of the second support wall 21a in the width direction Y. The second side wall 23 is an outer wall of the second case 20 and is located at an end of the second case 20 in the width direction Y. As shown in FIG. 4 , the second side wall 23 is divided into a plurality of second pieces 23a. The plurality of second pieces 23a are aligned in a row at intervals along the extension direction X. In other words, the second side wall 23 has gaps 23s that divide the second side wall 23 into a plurality of second pieces 23a aligned in the extension direction X.

[0025] As shown in Fig. 4, the first case 10 has a first engagement portion 12, and the second case 20 has a second engagement portion 22. The first engagement portion 12 is disposed at an end of the main body 11 in the extension direction X. The second engagement portion 22 is disposed at an end of the main body 21 in the extension direction X. The two engagement portions 12, 22 engage with each other at a second relative position shown in Fig. 11.

[0026] 5 shows the first case 10 and the second case 20 positioned in a first relative position. The first case 10 and the second case 20 are arranged so that the first support wall 11a and the second support wall 21a are aligned in the width direction Y. At this time, the cover 18 of the first case 10 is positioned at the end farther from the second case 20. Furthermore, the cover 24 of the second case 20 is positioned at the end farther from the first case 10.

[0027] As shown in FIG. 5 , the two cases 10, 20 are arranged so that the first side wall 14 and the second side wall 23 are interlocked. The second piece 23a of the second side wall 23 is inserted into the gap 14s of the first side wall 14. In other words, the second piece 23a is inserted between two adjacent first pieces 14a. In the illustrated wire harness 1, the dimension of the gap 14s in the extension direction X is equal to or slightly larger than the width of the second piece 23a. Therefore, the second piece 23a fits between the two first pieces 14a and interlocks with the first side wall 14.

[0028] Furthermore, the first piece 14a of the first side wall 14 is inserted into the gap 23s of the second side wall 23. In other words, the first piece 14a is inserted between two adjacent second pieces 23a. In the illustrated wire harness 1, the dimension of the gap 23s in the extension direction X is equal to or slightly larger than the width of the first piece 14a. Therefore, the first piece 14a fits between the two second pieces 23a and engages with the second side wall 23.

[0029] In the illustrated wire harness 1, the first arm portions 14a and the second arm portions 23a are alternately arranged along the extension direction X. The multiple first arm portions 14a and the multiple second arm portions 23a are arranged on the same line along the extension direction X. That is, the first side wall 14 and the second side wall 23 are combined to form a single partition wall that extends linearly in the extension direction X. By arranging the first arm portions 14a and the second arm portions 23a on the same line in this manner, the gap between the two cases 10, 20 is minimized, or there is essentially no gap between the two cases 10, 20.

[0030] 6 shows the flat wiring material 100 placed on the first case 10 and the second case 20. The flat wiring material 100 is placed on the cases 10, 20 so that the first part 110 and the second part 120 sandwich the first side wall 14 and the second side wall 23. In other words, the flat wiring material 100 is installed on the first case 10 and the second case 20 so that the first side wall 14 and the second side wall 23 pass through the slits 100s. The multiple first pieces 14a and the multiple second pieces 23a are aligned in the gap between the first part 110 and the second part 120.

[0031] In the wire harness 1 of this embodiment, the first side wall 14 and the second side wall 23 are aligned in a straight line to form a single partition wall. This allows the width of the slit 100s in the flat wiring material 100 to be reduced. As a comparative example, a wire harness in which two cases 10, 20 are arranged with the first side wall 14 and the second side wall 23 facing each other in the width direction Y will be considered. In the wire harness of the comparative example, a gap in the width direction Y is generated between the first side wall 14 and the second side wall 23. In the wire harness of the comparative example, the width of the slit 100s needs to be set according to the sum of the thickness of the first side wall 14, the thickness of the second side wall 23, and the gap between the two cases 10, 20.

[0032] In contrast, in the wire harness 1 of this embodiment, the width of the slit 100s can be set based on either the thickness of the first side wall 14 or the thickness of the second side wall 23. For example, when the first side wall 14 and the second side wall 23 have the same thickness t1, the width of the slit 100s may be set based on the thickness t1. Therefore, according to the wire harness 1 of this embodiment, the yield of the flat wiring material 100 can be improved.

[0033] Once the flat wiring material 100 is housed in the two cases 10, 20, a closing process is performed to close the covers 18, 24. In the closing process, the cover 18 of the first case 10 is assembled to the main body 11 while bending the hinge portion 11e. In the closing process, the cover 24 of the second case 20 is assembled to the main body 21 while bending the hinge portion 21e. Figure 7 shows the covers 18, 24 in a closed state. The opposing wall 18a of the cover 18 covers the first portion 110 of the flat wiring material 100. The opposing wall 24a of the cover 24 covers the second portion 120 of the flat wiring material 100.

[0034] In the wire harness 1 of this embodiment, the first case 10 and the second case 20 are configured to allow the first portion 110 and the second portion 120 to extend linearly, as described below. As shown in Figures 3 and 4, the wire harness 1 has a rotation structure 60 that rotatably couples the first case 10 and the second case 20.

[0035] 4, a first pivotal support portion 19A and a second pivotal support portion 19B are provided at an end portion of the main body 11 of the first case 10 in the extension direction X. The first pivotal support portion 19A rotatably supports a first rotating shaft 25A of the second case 20. The second pivotal support portion 19B rotatably supports a second rotating shaft 25B of the second case 20.

[0036] A first rotation shaft 25A is provided at an end of the main body 21 of the second case 20 in the extension direction X. A second rotation shaft 25B is provided at an end of the cover 24 in the extension direction X. The first rotation shaft 25A protrudes from a side surface of the main body 21 in the width direction Y. The second rotation shaft 25B extends in the width direction Y so as to cross the end of the cover 24. Both end portions of the second rotation shaft 25B are supported by second bearing portions 19B.

[0037] A first rotation step is performed to rotate the second case 20 relative to the first case 10 from the state shown in FIG. 7. In the first rotation step, the second case 20 is rotated relative to the first case 10 around a rotation axis Cx shown in FIG. 7 as the rotation center. The rotation axis Cx is, for example, a straight line extending in the extension direction X between the two covers 18, 24. This rotation may be performed using, for example, a jig plate. In this case, the jig plate may have a main body that supports the first case 10 and a support member that supports the second case 20. The support member is supported by the main body so as to be rotatable around the rotation axis Cx.

[0038] The second case 20 is rotated relative to the first case 10 with the rotation axis Cx as the center of rotation, and the second case 20 is overlapped on the first case 10. As a result, the second portion 120 of the flat wiring material 100 overlaps with the first portion 110 and faces the first portion 110. At this time, the middle portion 130 of the flat wiring material 100 is bent along the rotation axis Cx.

[0039] 8 shows the state in which the second case 20 is stacked on the first case 10 after the first rotation process is completed. In this specification, with respect to the first case 10 and the second case 20, the relative position in which the two cases 10, 20 overlap in the height direction Z is referred to as the intermediate relative position. In the intermediate relative position, the second portion 120 of the flat wiring material 100 overlaps with the first portion 110 and faces the first portion 110. The height direction Z is a direction perpendicular to both the extension direction X and the width direction Y.

[0040] Figure 9 shows a cross section taken along line IX-IX in Figure 8. The first rotating shaft 25A of the second case 20 is rotatably supported by the first pivotal support portion 19A of the first case 10. The first pivotal support portion 19A has a piece portion 19c standing in the height direction Z and a locking portion 19d. The piece portion 19c has a slit 19e extending in the height direction Z. The end of the first rotating shaft 25A is inserted into the slit 19e and locked by the locking portion 19d.

[0041] The second rotating shaft 25B of the second case 20 is rotatably supported by the second bearing portion 19B of the first case 10. The second bearing portion 19B has a slit 19f formed in the first side wall 14 and the opposing wall 11g. An end of the second rotating shaft 25B is inserted into the slit 19f and is rotatably supported by the first side wall 14 and the opposing wall 11g. By inserting the two rotating shafts 25A, 25B into the two bearing portions 19A, 19B, the first case 10 and the second case 20 are rotatably connected. This forms a bus bar module 400. The bus bar module 400 includes a bus bar 200 and the wire harness 1 of the embodiment.

[0042] 10 is a diagram illustrating the second rotation process. The second rotation process is performed, for example, in a factory where the busbar module 400 is assembled to a vehicle or the like. As shown in FIG. 10, in the second rotation process, the second case 20 is rotated relative to the first case 10 from an intermediate relative position toward a second relative position, which will be described later. In the second rotation process, the second case 20 rotates relative to the first case 10 around the central axes of the two rotation shafts 25A.

[0043] FIG. 11 shows a state in which the two cases 10, 20 are positioned at a second relative position after the second rotation process is completed. In the second relative position, the first case 10 and the second case 20 are aligned linearly along the extension direction X. In this state, the first portion 110 and the second portion 120 of the flat wiring material 100 are aligned linearly. In other words, the second portion 120 is positioned on an extension of the first portion 110 in a plan view. Furthermore, the multiple bus bars 200 are aligned linearly along the extension direction X. The cover 18 of the first case 10 covers and protects the first portion 110 with the opposing wall 18a. The cover 24 of the second case 20 covers and protects the second portion 120 with the opposing wall 24a.

[0044] The first side wall 14 of the first case 10 guards the first portion 110 of the flat wiring material 100. More specifically, the multiple first pieces 14a of the first side wall 14 are aligned in the extension direction X and face the first portion 110 in the width direction Y. The multiple first pieces 14a function as a protective wall that protects the first portion 110. In addition, the first side wall 14 guards the first portion 110 to prevent the first portion 110 from protruding from the first case 10.

[0045] The second side wall 23 of the second case 20 guards the second portion 120 of the flat wiring material 100. The multiple second pieces 23a of the second side wall 23 are aligned in the extension direction X and face the second portion 120 in the width direction Y. The multiple second pieces 23a function as a protective wall that protects the second portion 120. In addition, the second side wall 23 guards the second portion 120 to prevent the second portion 120 from protruding from the second case 20.

[0046] In this way, the multiple first pieces 14a and the multiple second pieces 23a are arranged alternately to form a single partition wall when the two cases 10, 20 are positioned in a first relative position. Furthermore, when the two cases 10, 20 are positioned in a second relative position, the multiple first pieces 14a and the multiple second pieces 23a function as protective walls that protect the flat wiring material 100 in each case 10, 20. Therefore, the first side wall 14 and the second side wall 23 are configured to simultaneously improve the yield of the flat wiring material 100 and protect the flat wiring material 100.

[0047] As described above, the wire harness 1 of this embodiment includes the flat wiring material 100, the first case 10, and the second case 20. The flat wiring material 100 includes the first portion 110, the second portion 120, and the intermediate portion 130. The first case 10 is a case that houses the first portion 110, and the second case 20 is a case that houses the second portion 120. The first portion 110 and the second portion 120 extend in the same extension direction X and are aligned in the width direction Y that is perpendicular to the extension direction X. The intermediate portion 130 connects an end of the first portion 110 and an end of the second portion 120 along the width direction Y.

[0048] The first case 10 has a first support wall 11a that supports the first portion 110 and a first side wall 14 that stands upright from the first support wall 11a and extends in the extension direction X. The second case 20 has a second support wall 21a that supports the second portion 120 and a second side wall 23 that stands upright from the second support wall 21a and extends in the extension direction X. The first side wall 14 has a gap 14s that divides the first side wall 14 into multiple first pieces 14a that are aligned in the extension direction X. The second side wall 23 is inserted into the gap 14s and is aligned on the same line as the multiple first pieces 14a.

[0049] In the wire harness 1 of this embodiment, the second side wall 23 and the first side wall 14 are aligned on the same line. Therefore, the gap required between the first portion 110 and the second portion 120 can be minimized, and the yield of the flat wiring material 100 can be improved.

[0050] In the wire harness 1 of the present embodiment, the second side wall 23 is provided with gaps 23s that divide the second side wall 23 into a plurality of second arms 23a arranged in the extension direction X. The first arms 14a are inserted between two adjacent second arms 23a, and the second arms 23a are inserted between two adjacent first arms 14a. In this case, the first arms 14a and the second arms 23a are alternately arranged along the extension direction X. This allows the plurality of first arms 14a and the plurality of second arms 23a to be interlocked with each other.

[0051] The flat wiring material 100 of this embodiment has a slit 100s formed between the first portion 110 and the second portion 120. The slit 100s extends in the extension direction X. The flat wiring material 100 is arranged so that the first portion 110 and the second portion 120 sandwich the first side wall 14 and the second side wall 23. Therefore, it is possible to minimize the width of the slit 100s and improve the yield of the flat wiring material 100.

[0052] The configurations of the first side wall 14 and the second side wall 23 are not limited to the configurations exemplified above. For example, the second side wall 23 does not have to be divided into multiple second pieces 23a. In this case, the first side wall 14 may have at least two first pieces 14a separated by a gap 14s. The second side wall 23 may be inserted into one of the gaps 14s provided in the first side wall 14 and aligned on the same line as the multiple first pieces 14a.

[0053] In the above embodiment, the first side wall 14 and the second side wall 23 are configured so that the first piece 14a and the second piece 23a are interlocked to form a single continuous partition wall. However, the configuration of the first side wall 14 and the second side wall 23 is not limited to this configuration. For example, a gap may be provided between the first piece 14a and the second piece 23a. In this case, the partition wall formed by the first side wall 14 and the second side wall 23 may have multiple gaps.

[0054] In the above embodiment, the case having the pivotal support portions 19A and 19B is referred to as the first case 10, and the case having the rotating shafts 25A and 25B is referred to as the second case 20. However, the names of the two cases are not limited to this. For example, the first case 10 may be a case having the rotating shafts 25A and 25B, and the second case 20 may be a case having the pivotal support portions 19A and 19B. In other words, the side walls of the two cases 10 and 20 may be such that one of the side walls is divided into multiple pieces and the other side wall can be inserted into the gap between the side walls.

[0055] The flat wiring material 100 is not limited to an FPC, but may be another flat wiring material such as an FFC (Flexible Flat Cable).

[0056] The contents disclosed in the above embodiments can be implemented in appropriate combinations. [Explanation of symbols]

[0057] 1: Wire harness 10: First case 11: Main body 11a: first support wall, 11c: holding portion, 11e: hinge portion 11f: Peripheral wall, 11g: Opposing wall 14: first side wall, 14a: first piece, 14s: gap 18: Cover 19A: First axis branch, 19B: Second axis branch 20: Second case 21: Main body 21a: second support wall, 21c: holding portion, 21e: hinge portion 21f: Peripheral wall, 21g: Opposing wall 23: second side wall, 23a: second piece, 23s: gap 24: Cover 25A: First rotating shaft, 25B: Second rotating shaft 100: Flat cable material, 100s: Slit 110: first portion, 120: second portion, 130: middle portion, 140: detection line 170: Branch 200: Bus bar 300: Busbar module X: Extension direction, Y: Width direction, Z: Height direction

Claims

1. A flat wiring material having a first portion, a second portion, and an intermediate portion; a first case that houses the first portion; a second case that houses the second portion; Equipped with the first portion and the second portion extend in the same extension direction and are aligned in a width direction perpendicular to the extension direction, the intermediate portion connects an end of the first portion and an end of the second portion along the width direction, the first case includes a first support wall that supports the first portion, and a first side wall that stands from the first support wall and extends in the extension direction, the second case includes a second support wall that supports the second portion, and a second side wall that stands from the second support wall and extends in the extension direction, The first side wall is provided with gaps that divide the first side wall into a plurality of first piece portions aligned in the extension direction, The second side wall is inserted into the gap and aligned on the same line as the first pieces. A wire harness characterized by:

2. The second side wall is provided with gaps that divide the second side wall into a plurality of second pieces aligned in the extension direction, Each of the first pieces is inserted between two adjacent second pieces, Each of the second pieces is inserted between two adjacent first pieces. The wire harness according to claim 1 .

3. The flat wiring material has a slit formed between the first portion and the second portion and extending in the extension direction, The flat wiring material is disposed so that the first side wall and the second side wall are sandwiched between the first portion and the second portion. The wire harness according to claim 1 .

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