Wire harness wiring structure

Abstract

To provide a wire harness wiring structure capable of improving workability of a fitting work.SOLUTION: A wire harness wiring structure 1 includes: a wire harness 2 including a detection wire W1 connecting a bus bar 110 and a connector 130; and a protector 3. The wire harness includes a protected portion 4 protected by the protector, a first exposed portion 51, and a second exposed portion 52. The first exposed portion protrudes from the protector toward the bus bar. The second exposed portion protrudes from the protector toward the connector. The protector is configured to accommodate the protected portion so as to allow the first exposed portion and the second exposed portion to extend side by side, and to make the distance between the first exposed portion and the second exposed portion variable.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a wiring structure of a wire harness.

Background Art

[0002] Conventionally, there is a technique for connecting a connector connected to a wire harness to a mating connector. Patent Document 1 discloses a circuit body with a connector including a circuit body composed of a flexible substrate provided with a wiring pattern and a connector attached to the circuit body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] It is desirable to improve the workability of the operation of fitting a connector connected to a wire harness to a mating connector. For example, in a configuration where the wire harness is protected by a protector, if changes in the shape of the wire harness and the wiring route are allowed, the workability of the fitting operation can be improved.

[0005] An object of the present invention is to provide a wiring structure of a wire harness that can improve the workability of the fitting operation.

Means for Solving the Problems

[0006] The wiring structure of the wire harness of the present invention includes a wire harness including a detection line connecting a bus bar and a connector, and a protector. The wire harness has a protected portion protected by the protector, a first exposed portion, and a second exposed portion. The first exposed portion protrudes from the protector toward the bus bar, and the second exposed portion protrudes from the protector toward the connector. The protector is configured to accommodate the protected portion so that the first exposed portion and the second exposed portion extend side by side, and to be able to change the distance between the first exposed portion and the second exposed portion.

Advantages of the Invention

[0007] In the wiring structure of the wire harness according to the present invention, the protector is configured to accommodate the protected portion so that the first exposed portion and the second exposed portion of the wire harness extend side by side, and to be able to change the distance between the first exposed portion and the second exposed portion. According to the wiring structure of the wire harness according to the present invention, there is an effect that the workability of the fitting operation can be improved.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0009] Hereinafter, with reference to the drawings, the wiring structure of the wire harness according to the embodiment of the present invention will be described in detail. Note that the present invention is not limited by this embodiment. In addition, the constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

[0010] [Embodiment] Embodiments will be described with reference to FIGS. 1 to 6. This embodiment relates to a wiring structure of a wire harness. FIG. 1 is an exploded perspective view of the wiring structure of the wire harness according to the embodiment, FIG. 2 is a plan view of the wiring structure of the wire harness according to the embodiment, FIG. 3 is a perspective view of the wiring structure of the wire harness according to the embodiment, FIGS. 4 and 5 are exploded perspective views of the wiring structure of the wire harness according to the embodiment, and FIG. 6 is a diagram for explaining the deformation of the bent portion.

[0011] As shown in FIG. 1, the wiring structure 1 of the wire harness according to the embodiment has a wire harness 2 and a protector 3. The wire harness 2 connects a plurality of bus bars 110 and connectors 130. The wiring structure 1 of the wire harness is applied to, for example, a battery pack 200 having a battery module 210. In this case, the wire harness 2 can be used as an element of the bus bar module 100.

[0012] The battery module 210 has a plurality of battery cells 220. The plurality of battery cells 220 are arranged along the first direction X. The bus bar module 100 has a plurality of bus bars 110, a case 120, a wire harness 2, a connector 130, and a protector 3. The bus bar 110 can be connected to the electrodes of the battery cell 220. The bus bar 110 connects, for example, the electrodes of two adjacent battery cells 220.

[0013] The case 120 houses a plurality of busbars 110 and a part of the wire harness 2. The case 120 is molded, for example, from an insulating synthetic resin. The case 120 has a holding portion for holding the busbars 110. The plurality of busbars 110 are held side by side in the first direction X by the case 120. The case 120 is fixed to the first surface 210a of the battery module 210 while holding the plurality of busbars 110. The first surface 210a is a surface on which the electrodes of the battery cells 220 are arranged, and is, for example, a side surface of the battery module 210.

[0014] The wire harness 2 is, for example, a bundle of electric wires having a plurality of electric wires. The electric wires of the wire harness 2 are, for example, coated electric wires having a core wire and an insulating layer covering the core wire. The wire harness 2 is routed from the case 120 to the connector 130. The wire harness 2 may have a cylindrical outer member for housing the plurality of electric wires. The outer member can prevent the plurality of electric wires from becoming loose and suppress interference of peripheral components with the electric wires. The plurality of electric wires include a detection line W1 connected to the busbar 110. When the busbar module 100 includes a thermistor, the plurality of electric wires may have a detection line connected to the thermistor.

[0015] The connector 130 is connected to the end of the wire harness 2 and fits to the monitoring unit 230. The monitoring unit 230 can be fixed to the first surface 210a of the battery module 210. The monitoring unit 230 is, for example, detachable from the first surface 210a of the battery module 210. The monitoring unit 230 may be fixed to the battery module 210 by a fastening member such as a bolt. In this case, the monitoring unit 230 can be detached from the battery module 210 by removing the fastening member. The monitoring unit 230 is arranged side by side with respect to the case 120 of the busbar module 100.

[0016] The connector 130 of the present embodiment fits along the first direction X to the fixed monitoring unit 230. However, the fitting direction of the connector 130 with respect to the monitoring unit 230 is not limited to the first direction X.

[0017] In this specification, the direction in which the case 120 and the monitoring unit 230 are arranged side by side is referred to as the arrangement direction Z. The arrangement direction Z is orthogonal to the first direction X. The arrangement direction Z is, for example, the width direction in which the electrodes are arranged in one battery cell 220. The direction orthogonal to both the first direction X and the arrangement direction Z is referred to as the second direction Y. The case 120 and the monitoring unit 230 face the battery module 210 in the second direction Y.

[0018] The monitoring unit 230 is a device that monitors the state of the battery module 210. The monitoring unit 230 is connected to the bus bar 110 and the thermistor via the wire harness 2. The monitoring unit 230 has a connector corresponding to the connector 130. The connector 130 of the bus bar module 100 is inserted into the monitoring unit 230 and connected to the connector of the monitoring unit 230.

[0019] The wire harness 2 is routed while being curved in a substantially U shape between the case 120 and the monitoring unit 230. The protector 3 is a protection member that protects the wire harness 2. The protector 3 of the present embodiment can protect the wire harness 2 while ensuring the freedom of the routing position and routing path of the wire harness 2 as described below.

[0020] As shown in FIG. 1, the protector 3 has a first protector 10, a second protector 20, and a guide member 30. The wire harness 2 has a protected portion 4 and an exposed portion 5. The protected portion 4 is a portion protected by the protector 3. The exposed portion 5 is a portion that protrudes from the protector 3 and is exposed to the external space.

[0021] The protected portion 4 has a first portion 41 and a second portion 42. The first portion 41 is housed in the first protector 10 of the protector 3 and is protected by the first protector 10. The second portion 42 is housed in the second protector 20 of the protector 3 and is protected by the second protector 20.

[0022] The exposed portion 5 has a first exposed portion 51, a second exposed portion 52, and a third exposed portion 53. The first exposed portion 51 protrudes from the first protector 10 toward the bus bar 110. The first exposed portion 51 is a portion that extends between the first protector 10 and the case 120 in the wire harness 2. The second exposed portion 52 protrudes from the second protector 20 toward the connector 130. The second exposed portion 52 is a portion that extends between the second protector 20 and the connector 130. The third exposed portion 53 is exposed to the external space between the first protector 10 and the second protector 20. The third exposed portion 53 extends from the first protector 10 to the second protector 20 while being curved in a substantially U shape.

[0023] The first protector 10 and the second protector 20 are molded of, for example, an insulating synthetic resin. The first protector 10 is formed in a cylindrical shape. The illustrated shape of the first protector 10 is a rectangular tube shape. The outer surface of the first protector 10 has two protrusions 11. The two protrusions 11 are arranged along the axial direction of the first protector 10. The shape of the protrusion 11 is, for example, a cylindrical shape with a widened tip.

[0024] The second protector 20 is formed in a cylindrical shape. The illustrated shape of the second protector 20 is a rectangular tube shape. The outer surface of the second protector 20 has one protrusion 21. The shape of the protrusion 21 is, for example, a cylindrical shape with a widened tip.

[0025] The guide member 30 is formed of, for example, synthetic resin or metal. The guide member 30 has a main body 31, two engagement holes 32, one guide hole 33, and an engagement portion 34. The main body 31 has a flat plate shape. The shape of the main body 31 in plan view is, for example, rectangular.

[0026] The engaging hole 32 and the guide hole 33 are through holes penetrating the main body 31. The engaging hole 32 corresponds to the protrusion 11 of the first protector 10. The engaging hole 32 is disposed at the longitudinal end of the main body 31. The two engaging holes 32 are arranged side by side in a direction perpendicular to the longitudinal direction of the main body 31. The shape of the engaging hole 32 is, for example, circular. The guide hole 33 is a long hole extending in the longitudinal direction of the main body 31. The guide hole 33 guides the protrusion 21 of the second protector 20.

[0027] The engaging portion 34 engages with the wall portion of the device or the like. The engaging portion 34 fits, for example, into a recess provided in the housing of the battery pack 200. The engaging portion 34 is disposed at the end of the main body 31 opposite to the side of the engaging hole 32. The guide hole 33 extends between the engaging portion 34 and the engaging hole 32.

[0028] As shown in FIG. 1, the portion between the case 120 and the connector 130 in the wire harness 2 is inserted through the first protector 10 and the second protector 20. The second protector 20 is disposed on the connector 130 side with respect to the first protector 10. In other words, the second portion 42 protected by the second protector 20 is closer to the connector 130 than the first portion 41 protected by the first protector 10. The two protrusions 11 of the first protector 10 are inserted into the corresponding engaging holes 32 of the guide member 30. By fitting the two protrusions 11 into the two engaging holes 32, the first protector 10 is fixed to the guide member 30.

[0029] The protrusion 21 of the second protector 20 is inserted into the guide hole 33 of the guide member 30 and guided by the guide hole 33. The guide member 30 assembled with the two protectors 10, 20 is connected to the wall portion or the like by the engaging portion 34. The engaging portion 34 may be supported by the wall portion or the like so that the main body 31 can swing.

[0030] The first protector 10 and the second protector 20 of the present embodiment are arranged on the second surface 210b of the battery module 210. The second surface 210b is a surface different from the first surface 210a and is a surface orthogonal to the first surface 210a. The second surface 210b is, for example, an end surface in the first direction X of the battery module 210.

[0031] The first protector 10 and the second protector 20 extend in the second direction Y along the second surface 210b. Also, the two protectors 10, 20 are arranged side by side in the arrangement direction Z. The first exposed portion 51 protrudes from the first protector 10 toward the second direction Y. The second exposed portion 52 protrudes from the second protector 20 toward the second direction Y. The first exposed portion 51 and the second exposed portion 52 are arranged side by side in the arrangement direction Z and face each other in the arrangement direction Z. That is, the protector 3 houses the protected portion 4 so as to extend the first exposed portion 51 and the second exposed portion 52 side by side.

[0032] The first exposed portion 51 is routed while curving at the corner where the first surface 210a and the second surface 210b intersect. The second exposed portion 52 is routed while curving at the above corner.

[0033] As shown in FIG. 2, the first protector 10 is held by the guide member 30. The first protector 10 is fixed at a predetermined position in the arrangement direction Z. The second protector 20 can move in the arrangement direction Z while being guided by the guide member 30. The second protector 20 moves relative to the first protector 10 while sliding the protrusion 21 along the guide hole 33. The guide hole 33 enables the protrusion 21 to move to the first side Z1 in the arrangement direction Z and the protrusion 21 to move to the second side Z2 in the arrangement direction Z. The first side Z1 is the side where the second protector 20 moves away from the first protector 10. The second side Z2 is the side where the second protector 20 approaches the first protector 10.

[0034] When the second protector 20 moves, the distance Dt between the first exposed portion 51 and the second exposed portion 52 changes. That is, the protector 3 is configured to be able to change the distance Dt between the first exposed portion 51 and the second exposed portion 52.

[0035] Since the distance Dt is variable, the wire harness 2 can change the routing position and routing path according to the position of the connector 130 in the alignment direction Z. For example, the protector 3 can accommodate a plurality of battery modules 210 with different relative positions of the monitoring unit 230 with respect to the case 120 in the alignment direction Z. That is, according to the wiring structure 1 of the wire harness according to the present embodiment, even when the relative position of the monitoring unit 230 with respect to the case 120 is different in the alignment direction Z, it is possible to fit the connector 130 to the monitoring unit 230.

[0036] Also, according to the wiring structure 1 of the wire harness according to the present embodiment, it is possible to fit the connector 130 to the monitoring unit 230 that is not fixed to the battery module 210. For example, it is possible to fix the monitoring unit 230 to the battery module 210 after fitting the connector 130 to the monitoring unit 230. The wiring structure 1 of the wire harness may be configured to be able to fit the connector 130 to the monitoring unit 230, for example, outside the battery pack 200.

[0037] The movable range of the second exposed portion 52 in the alignment direction Z can be set according to the length and position of the guide hole 33. The length of the third exposed portion 53 may include a surplus length that allows the second protector 20 to move along the guide hole 33.

[0038] FIG. 3 shows another protector 3 according to the embodiment. The protector 3 in FIG. 3 has a housing portion 60 instead of the guide member 30 that the protector 3 in FIG. 1 has. The housing portion 60 in FIG. 3 is a groove member having a groove shape. The housing portion 60 allows the first protector 10 and the second protector 20 to move relative to each other along the alignment direction Z.

[0039] The accommodating portion 60 has a first side wall 61, a second side wall 62, and a bottom wall 63. The first side wall 61 and the second side wall 62 face each other in the first direction X. In the first side wall 61, the opposing surface facing the second side wall 62 is preferably a flat surface. In the second side wall 62, the opposing surface facing the first side wall 61 is preferably a flat surface. The two opposing surfaces are preferably parallel.

[0040] The first side wall 61 is disposed on the second surface 210b of the battery module 210. The second side wall 62 is disposed at an interval from the first side wall 61. The size of the gap between the first side wall 61 and the second side wall 62 is such that the first protector 10 and the second protector 20 face each other in the arrangement direction Z and allows relative movement of the two protectors 10, 20.

[0041] The bottom wall 63 connects the ends of the second side Z2 of the first side wall 61 and the second side wall 62. The end of the accommodating portion 60 on the first side Z1 is open toward the first side Z1. That is, the first side wall 61, the second side wall 62, and the bottom wall 63 form a substantially U-shaped groove that opens toward the first side Z1.

[0042] The first protector 10 and the second protector 20 are accommodated in the accommodation space 64 between the first side wall 61 and the second side wall 62. The first protector 10 and the second protector 20 are formed in a cylindrical shape. The shapes of the two protectors 10, 20 are, for example, square tube shapes. In this case, the first protector 10 and the second protector 20 oppose one side surface to the first side wall 61 and the other side surface to the second side wall 62. A slight gap is provided between the two protectors 10, 20 and the two side walls 61, 62. The two protectors 10, 20 can move in the arrangement direction Z while sliding with respect to the two side walls 61, 62.

[0043] In the protector 3 of FIG. 3, the first protector 10 does not have the protrusion 11, and the second protector 20 does not have the protrusion 21. In the two protectors 10 and 20, the opposing surfaces facing the side walls 61 and 62 may be flat. The opposing surfaces of the protectors 10 and 20 may have ribs for reducing the contact area with the side walls 61 and 62. The side walls 61 and 62 may have ribs for reducing the contact area with the protectors 10 and 20. The side walls 61 and 62 may have ribs for guiding the protectors 10 and 20. In this case, the guide ribs may extend in the arrangement direction Z.

[0044] The first protector 10 and the second protector 20 extend in the second direction Y and are arranged side by side in the arrangement direction Z and accommodated in the accommodating portion 60. The first protector 10 accommodates the first part 41 of the protected part 4. The second protector 20 accommodates the second part 42 of the protected part 4. The first exposed part 51 protrudes from the first protector 10 in the second direction Y. The second exposed part 52 protrudes from the second protector 20 in the second direction Y. The first exposed part 51 and the second exposed part 52 are arranged side by side and face each other in the arrangement direction Z. That is, the protector 3 in FIG. 3 extends with the first exposed part 51 and the second exposed part 52 arranged side by side.

[0045] The bottom wall 63 can support the first protector 10. For example, when the arrangement direction Z is the vertical direction and the second side Z2 is the lower side, the bottom wall 63 can support the first protector 10 from below.

[0046] The first protector 10 and the second protector 20 are movable in the arrangement direction Z inside the accommodating portion 60. The first side wall 61 and the second side wall 62 guide the protectors 10 and 20 and allow the movement of the protectors 10 and 20 along the arrangement direction Z. Therefore, the protector 3 in FIG. 3 is configured to be able to change the interval Dt between the first exposed part 51 and the second exposed part 52. Since the two protectors 10 and 20 are movable in the arrangement direction Z, the connector 130 has high followability with respect to the monitoring unit 230.

[0047] FIG. 4 shows another protector 3 according to an embodiment. The protector 3 in FIG. 4 has a protector main body 71 and a cover 72. The protector main body 71 is disposed on the second surface 210b of the battery module 210. The monitoring unit 230 and the case 120 are disposed on the first surface 210a of the battery module 210. The protector main body 71 has a bottom wall 73, a first side wall 74a, a second side wall 74b, a third side wall 74c, and a partition wall 75. The shape of the bottom wall 73 illustrated in FIG. 4 is substantially rectangular.

[0048] The first side wall 74a, the second side wall 74b, and the third side wall 74c stand upright from the edge of the bottom wall 73 in the first direction X. The first side wall 74a and the second side wall 74b face each other in the arrangement direction Z. The third side wall 74c connects the ends of the first side wall 74a and the second side wall 74b in the second direction Y and extends in the arrangement direction Z. The bottom wall 73 and the three side walls 74a, 74b, 74c form an accommodation space 77 for accommodating the protected portion 4.

[0049] Engagement portions 76 are respectively provided on the side walls 74a, 74b, 74c. The partition wall 75 protrudes from the bottom wall 73 in the first direction X and extends in the second direction Y. A gap through which the protected portion 4 can pass is provided between the end of the partition wall 75 and the third side wall 74c. The partition wall 75 partitions the inside of the accommodation space 77 into a first space portion 77a and a second space portion 77b. The first space portion 77a is a space portion on the second side Z2 with respect to the partition wall 75. The second space portion 77b is a space portion on the first side Z1 with respect to the partition wall 75.

[0050] The protected portion 4 is accommodated in the accommodation space 77 while being curved in a substantially U shape so as to wrap around along the partition wall 75. The protected portion 4 has a first extending portion 43 and a second extending portion 44. The first extending portion 43 is a portion extending into the first space portion 77a. The second extending portion 44 is a portion extending into the second space portion 77b. In the arrangement direction Z, the width of the second space portion 77b is wider than the width of the first space portion 77a. That is, the movable range of the second extending portion 44 in the arrangement direction Z is wider than the movable range of the first extending portion 43.

[0051] The cover 72 engages with the protector body 71 along the first direction X and covers the accommodation space 77. The cover 72 has a plate shape, covers the accommodation space 77 from the first direction X, and faces the bottom wall 73. A plurality of engaging portions 78 are provided at the edge of the cover 72. The engaging portion 78 engages with the engaging portion 76 of the protector body 71.

[0052] The first exposed portion 51 protrudes from the first space portion 77a toward the second direction Y. That is, the first exposed portion 51 extends between the first extending portion 43 and the case 120. The second exposed portion 52 protrudes from the second space portion 77b toward the second direction Y. That is, the second exposed portion 52 extends between the second extending portion 44 and the connector 130. The first exposed portion 51 and the second exposed portion 52 are arranged in the arrangement direction Z and face each other in the arrangement direction Z. That is, the protector 3 in FIG. 4 accommodates the protected portion 4 so as to extend the first exposed portion 51 and the second exposed portion 52 side by side.

[0053] The protector 3 in FIG. 4 allows the protected portion 4 to deform in the accommodation space 77. For example, the protector 3 allows the protected portion 4 to deform in the accommodation space 77 so as to follow a change in the distance Dt between the first exposed portion 51 and the second exposed portion 52. The distance Dt between the two exposed portions 51, 52 changes, for example, when the connector 130 is fitted to the monitoring unit 230. The protector 3 in FIG. 4 can allow the wire harness 2 to deform so that the connector 130 can be fitted to the monitoring units 230 having different positions in the arrangement direction Z.

[0054] Further, according to the protector 3 in FIG. 4, it is possible to fix the monitoring unit 230 to the battery module 210 after fitting the connector 130 to the monitoring unit 230. The protector 3 may be configured, for example, to be able to fit the connector 130 to the monitoring unit 230 outside the battery pack 200.

[0055] FIG. 5 shows another protector 3 according to an embodiment. The protector 3 in FIG. 5 has a protector main body 81 and a cover 82. The protector main body 81 is disposed on the second surface 210b of the battery module 210. The monitoring unit 230 and the case 120 are disposed on the first surface 210a of the battery module 210. The protector main body 81 has a bottom wall 83, a first side wall 84a, a second side wall 84b, and a third side wall 84c. The bottom wall 83 shown in FIG. 5 has a tapered shape. More specifically, the shape of the bottom wall 83 in plan view is a tapered shape in which an opening that protrudes two exposed portions 51 and 52 is the widest. The shape of the bottom wall 83 is, for example, a substantially V-shaped.

[0056] The first side wall 84a, the second side wall 84b, and the third side wall 84c are erected from the edge of the bottom wall 83 in the first direction X. The first side wall 84a and the second side wall 84b face each other in the arrangement direction Z. The third side wall 84c connects the ends of the first side wall 84a and the second side wall 84b in the second direction Y and extends in the arrangement direction Z. The bottom wall 83 and the three side walls 84a, 84b, 84c form an accommodation space 87 for accommodating the protected portion 4. The distance between the two side walls 84a, 84b increases as it moves away from the third side wall 84c along the second direction Y. Engagement portions 86 are provided on the side walls 84a, 84b, 84c, respectively.

[0057] The protected portion 4 is accommodated in the accommodation space 87 while being curved in a substantially U shape or bent in a substantially V shape. When the wire harness 2 is composed of a plurality of electric wires, the protected portion 4 may be accommodated in the accommodation space 87 while being curved in a substantially U shape. The wire harness 2 shown in FIG. 5 is a flat cable material such as a flexible printed circuit board. The flat cable material may be accommodated in the accommodation space 87 while being bent in a substantially V shape.

[0058] In the wire harness 2 of FIG. 5, the protected portion 4 has a first bending portion 45 and a second bending portion 46. The first bending portion 45 is the bending portion closer to the first exposed portion 51 among the two bending portions 45 and 46. The second bending portion 46 is the bending portion closer to the second exposed portion 52 among the two bending portions 45 and 46.

[0059] The cover 82 engages with the protector body 81 along the first direction X and covers the accommodation space 87. The cover 82 has a plate shape, covers the accommodation space 87 from the first direction X, and faces the bottom wall 83. A plurality of engaging portions 88 are provided at the edge of the cover 82. The engaging portion 88 engages with the engaging portion 86 of the protector body 81.

[0060] The first exposed portion 51 and the second exposed portion 52 protrude from the accommodation space 87 in the second direction Y. The first exposed portion 51 and the second exposed portion 52 are arranged in the arrangement direction Z and face each other in the arrangement direction Z. That is, the protector 3 in FIG. 5 accommodates the protected portion 4 so that the first exposed portion 51 and the second exposed portion 52 extend side by side.

[0061] The protector 3 in FIG. 5 allows the protected portion 4 to deform in the accommodation space 87. For example, the protector 3 allows the protected portion 4 to deform in the accommodation space 87 so as to follow a change in the distance Dt between the first exposed portion 51 and the second exposed portion 52. In FIG. 6, the deformation of the second bending portion 46 is shown. The second bending portion 46 is folded back between the first portion 46a and the second portion 46b. The first portion 46a is the portion connected to the first bending portion 45. The second portion 46b is the portion connected to the second exposed portion 52.

[0062] The protected portion 4 deforms so that the angle θ of the second bending portion 46 increases or decreases. The angle θ is the angle formed by the extending direction of the first portion 46a and the extending direction of the second portion 46b. On the left side of FIG. 6, the second bending portion 46 when the angle θ is a relatively small value θ1 is shown, and on the right side of FIG. 6, the second bending portion 46 when the angle θ is a relatively large value θ2 is shown.

[0063] When the second exposed portion 52 approaches the first exposed portion 51 along the alignment direction Z, the protected portion 4 deforms such that the angle θ decreases. On the other hand, when the second exposed portion 52 moves away from the first exposed portion 51 along the alignment direction Z, the protected portion 4 deforms such that the angle θ increases.

[0064] Further, when the distance Dt between the first exposed portion 51 and the second exposed portion 52 increases or decreases, the protected portion 4 can also change the distance between the two bent portions 45, 46. For example, when the second exposed portion 52 approaches the first exposed portion 51 along the alignment direction Z, the protected portion 4 may deform so as to widen the distance between the two bent portions 45, 46. For example, when the second exposed portion 52 moves away from the first exposed portion 51 along the alignment direction Z, the protected portion 4 may deform so as to narrow the distance between the two bent portions 45, 46.

[0065] In this way, the protector 3 of FIG. 5 allows the protected portion 4 to deform in the accommodation space 87 so as to follow the change in the distance Dt between the first exposed portion 51 and the second exposed portion 52. The distance Dt between the two exposed portions 51, 52 changes, for example, when the connector 130 is fitted to the monitoring unit 230. The protector 3 of FIG. 5 can allow the wire harness 2 to deform so that the connector 130 can be fitted to the monitoring unit 230 having different positions in the alignment direction Z.

[0066] Further, according to the protector 3 of FIG. 5, it is possible to fix the monitoring unit 230 to the battery module 210 after fitting the connector 130 to the monitoring unit 230. The wiring structure 1 of the wire harness may be configured, for example, such that the connector 130 can be fitted to the monitoring unit 230 outside the battery pack 200.

[0067] As described above, the wiring structure 1 of the wire harness according to the present embodiment includes a wire harness 2 and a protector 3. The wire harness 2 includes a detection line W1 that connects the bus bar 110 and the connector 130. The wire harness 2 has a protected portion 4 protected by the protector 3, a first exposed portion 51, and a second exposed portion 52. The first exposed portion 51 protrudes from the protector 3 toward the bus bar 110. The second exposed portion 52 protrudes from the protector 3 toward the connector 130.

[0068] The protector 3 houses the protected portion 4 so as to extend the first exposed portion 51 and the second exposed portion 52 side by side. The protector 3 is configured to be able to change the distance Dt between the first exposed portion 51 and the second exposed portion 52. The wiring structure 1 of the wire harness according to the present embodiment can change the distance Dt between the first exposed portion 51 and the second exposed portion 52, and can improve the workability when fitting the connector 130 to the mating connector.

[0069] The protector 3 in FIG. 1 includes a first protector 10, a second protector 20, and a guide member 30. The first protector 10 houses a portion of the protected portion 4 that connects to the first exposed portion 51. The second protector 20 houses a portion of the protected portion 4 that connects to the second exposed portion 52. The guide member 30 guides the first protector 10 and the second protector 20 so that the first protector 10 and the second protector 20 can move relative to each other in the alignment direction Z. With such a configuration, the locus of the relative movement of the two protectors 10 and 20 can be controlled.

[0070] The protector 3 in FIG. 3 includes a first protector 10, a second protector 20, and a housing portion 60. The first protector 10 houses a portion of the protected portion 4 that connects to the first exposed portion 51. The second protector 20 houses a portion of the protected portion 4 that connects to the second exposed portion 52. The housing portion 60 houses the first protector 10 and the second protector 20 so as to allow relative movement between the first protector 10 and the second protector 20 in the alignment direction Z.

[0071] The protector 3 in FIG. 4 has a receiving space 77 for receiving the protected part 4. The protector 3 allows the protected part 4 to deform in the receiving space 77 so as to follow the change in the distance Dt between the first exposed part 51 and the second exposed part 52. Similarly, the protector 3 in FIG. 5 has a receiving space 87 for receiving the protected part 4. The protector 3 allows the protected part 4 to deform in the receiving space 87 so as to follow the change in the distance Dt between the first exposed part 51 and the second exposed part 52. By deforming the protected part 4 inside the receiving spaces 77 and 87, the wire harness 2 is less likely to interfere with the peripheral components.

[0072] Note that the shape of the protected part 4 in the receiving spaces 77 and 78 is not limited to a U shape or a V shape. The protected part 4 may have, for example, a meandering shape having a plurality of curved portions, or may have other shapes. The protected part 4 may have a plurality of turning portions in the receiving spaces 77 and 78. The extending direction of the protected part 4 changes at each turning portion. The shape of each turning portion may be U-shaped or V-shaped.

[0073] The contents disclosed in the above embodiments can be executed in appropriate combination.

Explanation of Reference Numerals

[0074] 1: Wiring structure of wire harness 2: Wire harness 3: Protector, 4: Protected part, 5: Exposed part 10: First protector, 11: Protrusion 20: Second protector, 21: Protrusion 30: Guide member, 31: Body, 32: Engagement hole, 33: Guide hole 34: Engagement part 41: First part, 42: Second part, 43: First extending part, 44: Second extending part 45: First bending part, 46: Second bending part 51: First exposed part, 52: Second exposed part, 53: Third exposed part 60: Accommodating part, 61: First side wall, 62: Second side wall, 63: Bottom wall 64: Accommodating space 71: Protector body, 72: Cover, 73: Bottom wall 74a: First side wall, 74b: Second side wall, 74c: Third side wall 75: Partition wall, 76: Engaging part 77: Accommodating space, 77a: First space part, 77b: Second space part 81: Protector body, 82: Cover, 83: Bottom wall 84a: First side wall, 84b: Second side wall, 84c: Third side wall 86: Engaging part, 87: Accommodating space 100: Bus bar module, 110: Bus bar, 120: Case 130: Connector 200: Battery pack 210: Battery module, 210a: First surface, 210b: Second surface 220: Battery cell Dt: Interval X: First direction, Y: Second direction Z: Arrangement direction, Z1: First side, Z2: Second side θ: Angle

Claims

1. A wire harness including a detection line connecting a bus bar and a connector, a protector, comprising: the wire harness has a protected portion protected by the protector, a first exposed portion, and a second exposed portion; the first exposed portion protrudes from the protector toward the bus bar; the second exposed portion protrudes from the protector toward the connector; the protector is configured to accommodate the protected portion so as to extend the first exposed portion and the second exposed portion side by side, and to be able to change the distance between the first exposed portion and the second exposed portion A wiring structure of a wire harness, characterized in that.

2. The protector has a first protector that accommodates a portion of the protected portion connected to the first exposed portion, a second protector that accommodates a portion of the protected portion connected to the second exposed portion, and a guide member; the guide member guides the first protector and the second protector so that the first protector and the second protector can move relative to each other in the arrangement direction in which the first exposed portion and the second exposed portion are arranged side by side The wiring structure of the wire harness according to claim 1.

3. The protector has a first protector that accommodates a portion of the protected portion connected to the first exposed portion, a second protector that accommodates a portion of the protected portion connected to the second exposed portion, and an accommodating portion; the accommodating portion accommodates the first protector and the second protector so as to allow relative movement between the first protector and the second protector in the arrangement direction in which the first exposed portion and the second exposed portion are arranged side by side The wiring structure of the wire harness according to claim 1.

4. The protector has an accommodation space for accommodating the protected portion; the protector allows the protected portion to deform in the accommodation space so as to follow the change in the distance between the first exposed portion and the second exposed portion The wiring structure of the wire harness according to claim 1.

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