Wiring module

Abstract

To provide a wiring module capable of suppressing a damage in a connection part between a circuit board and an electric wire.SOLUTION: A wiring module 20 is attached to a plurality of power storage elements 11 including electrode terminals and includes a plurality of bus bars 30, a plurality of circuit boards, a plurality of electric wires 40, and a protector 50 that holds the bus bars 30, the circuit boards, and the electric wires 40. Each bus bar 30 is connected to the electrode terminal. Each circuit board is electrically connected to each bus bar 30. Each electric wire 40 is connected to each circuit board. The protector 50 includes an electric wire accommodation part 52 in which the electric wires 40 are accommodated, a placement surface 54 that can be in contact with each electric wire 40 disposed outside the electric wire accommodation part 52 and that has each circuit board placed thereon, and a contact part 58 that can be in contact with each electric wire 40 disposed outside the electric wire accommodation part 52 from the side opposite to the placement surface 54 in a first direction that is orthogonal to the placement surface 54.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a wiring module.

Background Art

[0002] High-voltage battery packs used in electric vehicles, hybrid vehicles, etc. usually have a large number of batteries stacked and are electrically connected in series or in parallel by a wiring module. As such a wiring module, a battery connection module described in Japanese Patent Application Laid-Open No. 2019-23996 (hereinafter referred to as Patent Document 1) has been conventionally known. The battery connection module described in Patent Document 1 includes a bus bar and a flexible circuit board connected to the bus bar.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Unlike the above configuration, the wiring module may include a bus bar, a circuit board connected to the bus bar, and an electric wire connected to the circuit board. The connection between the circuit board and the electric wire can be performed, for example, by soldering or the like. In such Wiring module cases, the connection portion between the circuit board and the electric wire may be damaged, for example, when vibration or stress is applied to the electric wire.

Means for Solving the Problems

[0005] The wiring module of the present disclosure is a wiring module to be attached to a plurality of energy storage elements having electrode terminals, and comprises a plurality of busbars, a plurality of circuit boards, a plurality of electric wires, and a protector that holds the plurality of busbars, the plurality of circuit boards, and the plurality of electric wires, wherein each busbar is connected to the electrode terminals, each circuit board is electrically connected to each busbar, and each electric wire is connected to each circuit board, and the protector has an electric wire housing portion that houses the plurality of electric wires, a mounting surface on which each circuit board is placed that is capable of contacting each of the electric wires located outside the electric wire housing portion, and a contact portion that is capable of contacting each of the electric wires located outside the electric wire housing portion from the opposite side of the mounting surface in a first direction perpendicular to the mounting surface. [Effects of the Invention]

[0006] According to this disclosure, it is possible to provide a wiring module that can suppress damage to the connection between the circuit board and the electric wire. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a schematic diagram showing a vehicle equipped with an energy storage module according to Embodiment 1. [Figure 2] Figure 2 is a plan view of the wiring module and energy storage element. [Figure 3] Figure 3 is a plan view of the wiring module and energy storage element with the cover removed. [Figure 4] Figure 4 is a cross-sectional view of AA in Figure 2. [Figure 5] Figure 5 is a cross-sectional view of BB in Figure 2. [Figure 6] Figure 6 is an enlarged perspective view of a wiring module showing wires located outside the wire housing and within the recessed area. [Figure 7] Figure 7 is a perspective view of the cover showing the contact area. [Figure 8] Figure 8 is an enlarged plan view of the wiring module according to Embodiment 2. [Figure 9]Figure 9 is a cross-sectional view of the CC shown in Figure 8. [Figure 10] Figure 10 is a cross-sectional view of the DD in Figure 8. [Figure 11] Figure 11 is an enlarged perspective view of a wiring module showing wires located outside the wire housing. [Figure 12] Figure 12 is a perspective view of the cover showing the elastic piece. [Modes for carrying out the invention]

[0008] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described.

[0009] (1) The wiring module of the present disclosure is a wiring module to be attached to a plurality of energy storage elements having electrode terminals, and comprises a plurality of busbars, a plurality of circuit boards, a plurality of electric wires, and a protector that holds the plurality of busbars, the plurality of circuit boards, and the plurality of electric wires, wherein each busbar is connected to the electrode terminals, each circuit board is electrically connected to each busbar, and each electric wire is connected to each circuit board, and the protector has an electric wire housing portion that houses the plurality of electric wires, a mounting surface on which each circuit board is mounted that is capable of contacting each of the electric wires located outside the electric wire housing portion, and a contact portion that is capable of contacting each of the electric wires located outside the electric wire housing portion from the opposite side of the mounting surface in a first direction perpendicular to the mounting surface, wherein the wiring module comprises a plurality of busbars, a plurality of circuit boards, a plurality of electric wires, and a protector that holds the plurality of busbars, the plurality of circuit boards, and the plurality of electric wires, wherein each busbar is connected to the electrode terminals, each circuit board is electrically connected to each busbar, and each electric wire is connected to each circuit board, and the protector has an electric wire housing portion that houses the plurality of electric wires, a mounting surface that is capable of contacting each of the electric wires located outside the electric wire housing portion from the opposite side of the mounting surface in a first direction perpendicular to the mounting surface,

[0010] With this configuration, when vibrations are applied to multiple wires, each wire located outside the wire housing comes into contact with the mounting surface and contact points, and experiences friction from these surfaces. As a result, vibrations are less likely to be transmitted to the connections between each wire and each circuit board. Therefore, damage to the connections between each wire and each circuit board can be suppressed.

[0011] (2) In the wiring module described in (1), the protector preferably includes a protector body and a cover that is overlapped with the protector body in the first direction, the protector body includes the placement surface, and the cover includes the contact portion.

[0012] According to such a configuration, the contact portion can be provided simply. In addition, the wiring of each electric wire to the protector becomes easy.

[0013] (3) In the wiring module described in (1) or (2), the protector preferably includes a recess that is recessed from the placement surface, and the contact portion preferably overlaps with the recess when viewed in the first direction.

[0014] According to such a configuration, each electric wire arranged outside the electric wire accommodating portion can be arranged in a bent state in the recess, and the contact portion can be pressed against each electric wire. Therefore, the friction between the contact portion and each electric wire can be increased, and further, damage to the connection portion between each electric wire and each circuit board can be suppressed.

[0015] (4) In the wiring module described in (3), it is preferable that the distance in the first direction between the bottom surface of the recess and the contact portion is set to be larger than the diameter of each electric wire.

[0016] According to such a configuration, when the distance in the first direction between the bottom surface of the recess and the contact portion becomes small due to manufacturing tolerances of the protector or the like, it is possible to prevent each electric wire from being sandwiched between the bottom surface of the recess and the contact portion and damaged.

[0017] (5) In the wiring module described in (1) or (2), the protector is preferably elastically deformable in the first direction and includes an elastic piece having the contact portion, and the elastic piece preferably sandwiches each electric wire between itself and the placement surface.

[0018] With this configuration, each wire, which is positioned outside the wire housing, is held between the elastic piece and the mounting surface, thereby increasing the friction between each wire and the mounting surface and contact points. Consequently, damage to the connections between each wire and each circuit board can be further suppressed.

[0019] [Details of the embodiments of this disclosure] Embodiments of the present disclosure are described below. The present disclosure is not limited to these examples, but is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended.

[0020] <Embodiment 1> Embodiment 1 of this disclosure will be described with reference to Figures 1 to 7. The energy storage module 10 equipped with the wiring module 20 of this embodiment is applied to an energy storage pack 2 mounted on a vehicle 1, for example, as shown in Figure 1. The energy storage pack 2 is mounted on a vehicle 1 such as an electric vehicle or a hybrid vehicle and used as a power source for the vehicle 1. In the following description, for multiple identical components, only some components may be given reference numerals, and the reference numerals for other components may be omitted.

[0021] As shown in Figure 1, a power storage pack 2 is located near the center of vehicle 1. A Power Control Unit (PCU) 3 is located at the front of vehicle 1. The power storage pack 2 and the PCU 3 are connected by a wire harness 4. The power storage pack 2 and the wire harness 4 are connected by a connector (not shown). The power storage pack 2 has a power storage module 10 equipped with multiple power storage elements 11. In the following explanation, except for Figure 1, the direction indicated by arrow Z will be considered upward, the direction indicated by arrow X will be considered forward, and the direction indicated by arrow Y will be considered left.

[0022] As shown in Figure 2, the energy storage module 10 comprises a plurality of energy storage elements 11 arranged in a row, and a wiring module 20 mounted on the upper surface of the plurality of energy storage elements 11. The energy storage elements 11 are flat rectangular parallelepipeds with energy storage elements housed inside. Although not shown, the energy storage elements 11 have a pair of electrode terminals located near the right and left ends of their upper surfaces. One of the electrode terminals is the positive electrode, and the other is the negative electrode.

[0023] [Wiring Module] The wiring module 20 includes a busbar 30 connected to the electrode terminals of the energy storage element 11, a circuit board 21 connected to the busbar 30, electric wires 40 connected to the circuit board 21, and a protector 50 that holds the busbar 30, the circuit board 21, and the electric wires 40.

[0024] [Bus bar] The busbar 30 is made of a metal plate and has a rectangular shape when viewed from above. The busbar 30 includes a connecting busbar 30A that connects adjacent electrode terminals in the stacking direction (front-to-back direction) of the multiple energy storage elements 11, and an output busbar 30B that is connected to the electrode terminals of the energy storage elements 11 located at the ends in the stacking direction. The output busbar 30B connects the total positive or total negative electrodes of the multiple energy storage elements 11 to external equipment. The connection between the busbar 30 and the electrode terminals is made by welding or the like. The busbar 30 is housed in the busbar housing section 51 of the protector 50, which will be described later.

[0025] [Circuit board] In this embodiment, the circuit board 21 is a flexible substrate, and is constructed by forming conductive paths on the surface of a flexible insulating sheet using printed wiring technology. The circuit board 21 comprises a substrate body 22 and an extension portion 23 extending from the substrate body 22. The substrate body 22 has a roughly rectangular shape in plan view. The substrate body 22 is fixed to the mounting surface 54 of the protector 50, which will be described later. Although not shown in detail, for example, the substrate body 22 is provided with through holes, and projections protruding from the mounting surface 54 are inserted into these through holes. The substrate body 22 is provided with a wire land 22A which is located at one end of the conductive path. The wire land 22A is connected to the wire 40 by soldering or the like.

[0026] The extension portion 23 is roughly U-shaped in plan view and is configured to be expandable and contractible. The provision of the extension portion 23 allows the end of the extension portion 23 opposite to the substrate body 22 (the tip) to be displaced by a predetermined dimension relative to the substrate body 22. The other end (not shown) of a conductive path is located at the tip of the extension portion 23. The other end of the conductive path is electrically connected to the busbar 30 via a small metal piece 15.

[0027] Although not shown in the diagram, fuses or the like may be provided in the conductive paths of the circuit board 21. Furthermore, the circuit board 21 may have multiple conductive paths, and these conductive paths may include part of a thermistor circuit for measuring the temperature of the energy storage element 11.

[0028] [Electric wire] The wires 40 connected to the circuit board 21 are housed together in the wire housing section 52 of the protector 50, which will be described later. Multiple wires 40 are arranged extending in the front-to-back direction within the wire housing section 52. Although not shown, multiple wires 40 may be integrated within the wire housing section 52 using tape, binding members, etc.

[0029] Multiple electric wires 40 are connected to a connector (not shown) at the end opposite the circuit board 21. This connector is connected to an external ECU (Electronic Control Unit), etc. The ECU is a well-known configuration equipped with a microcomputer, components, etc., and has functions for detecting the voltage, current, temperature, etc. of each energy storage element 11, and for controlling the charging and discharging of each energy storage element 11.

[0030] [Protector] The protector 50 is made of an insulating synthetic resin. The protector 50 comprises a protector body 50A and a cover 50B that covers the protector body 50A from above. In this embodiment, two covers 50B are provided for one protector body 50A (only one cover 50B is shown in Figure 2).

[0031] [Protector body] The protector body 50A is tray-shaped. As shown in Figure 3, the protector body 50A includes a busbar housing section 51 in which the busbars 30 are housed, a wire housing section 52 in which multiple wires 40 are housed, and an intermediate wiring section 53 positioned between the busbar housing section 51 and the wire housing section 52. The busbar housing sections 51 are provided at both ends of the protector body 50A in the left-right direction. The busbar housing sections 51 form a frame shape and are arranged in a front-to-back direction.

[0032] [Wire housing section] Two wire housing sections 52 are provided on the protector body 50A, located near the left and right center. The wire housing sections 52 are groove-shaped and extend in the front-to-back direction. As shown in Figure 6, the wire housing section 52 comprises a bottom wall 52A and a pair of side walls 52B that rise upward from both the left and right edges of the bottom wall 52A. A notch 52C is formed in the side wall 52B of the wire housing section 52 on the intermediate wiring section 53 side. The wire 40 is received from the intermediate wiring section 53 to the wire housing section 52 through the notch 52C.

[0033] [recess] As shown in Figure 2, the intermediate wiring section 53 contains a circuit board 21 and electric wires 40 connected to the circuit board 21. The intermediate wiring section 53 has a mounting surface 54 on which the circuit board 21 is placed, and a recess 55 that is recessed from the mounting surface 54 toward the energy storage element 11 side (downward). The mounting surface 54 is a surface perpendicular to the vertical direction (an example of a first direction). The recess 55 has a rectangular shape that is long in the left-right direction when viewed from above. As shown in Figure 6, the recess 55 is located near the notch 52C of the electric wire housing section 52. The recess 55 has a bottom surface 55A that is substantially parallel to the mounting surface 54, and first connection surfaces 55B and second connection surfaces 55C that are connected to both left and right edges of the bottom surface 55A. The first connection surfaces 55B and the second connection surfaces 55C connect the bottom surface 55A and the mounting surface 54. The second connection surface 55C is positioned closer to the wire housing section 52 than the first connection surface 55B. Both the first connection surface 55B and the second connection surface 55C slope downwards towards the bottom surface 55A.

[0034] The intermediate wiring section 53 is positioned around the recess 55 and includes a partition wall 56 that rises upward from the mounting surface 54. The partition wall 56 is connected to the side wall 52B of the wire housing section 52. The partition wall 56 has an opening 56A at a position opposite the notch 52C in the left-right direction. By providing the partition wall 56 in this way, the wire 40 can be inserted through the notch 52C and the opening 56A, thereby positioning the wire 40 to overlap the recess 55 in a plan view.

[0035] [Cover, contact area] As shown in Figures 2 and 3, the cover 50B is configured to be able to close the wire housing portion 52 and the intermediate wiring portion 53 of the protector body 50A from above. As shown in Figure 7, the cover 50B comprises a top plate portion 57 and a contact portion 58 that protrudes downward from the top plate portion 57. The contact portion 58 is, for example, block-shaped. The contact portion 58 can be contacted from the side opposite to the mounting surface 54 in a first direction (vertical direction) perpendicular to the mounting surface 54.

[0036] When the protector body 50A is covered with the cover 50B, the contact portion 58 overlaps with the recess 55 in a plan view, as shown by the dashed line in Figure 2. As shown in Figures 4 and 5, the contact portion 58 is located inside the partition wall 56, and the electric wire 40 is positioned between the contact portion 58 and the bottom surface 55A of the recess 55. The electric wire 40 is expected to contact the mounting surface 54 in the region between the connection point with the circuit board 21 and the recess 55. The contact portion 58 is also provided to press the electric wire 40, which is positioned on the recess 55, toward the bottom surface 55A of the recess 55. That is, the lower end of the electric wire 40 is positioned below the mounting surface 54 within the recess 55, and the electric wire 40 is positioned in a bent position in the region from the outside to the inside of the recess 55. In detail, in the vertical direction, the lower end of the contact portion 58 is positioned lower than the position of the upper end of the electric wire 40 placed on the mounting surface 54.

[0037] As shown in Figure 4, in this embodiment, the recess 55 has a first connection surface 55B and a second connection surface 55C at both ends of the bottom surface 55A in the direction of extension (left-right direction) of the electric wire 40. The first connection surface 55B and the second connection surface 55C are provided with a downward slope toward the bottom surface 55A. Therefore, when the electric wire 40 is pressed into the recess 55 by the contact portion 58, the electric wire 40 is more likely to bend, and the electric wire 40 is less likely to be damaged at both ends of the recess 55.

[0038] As shown in Figures 4 and 5, in this embodiment, the distance D1 between the contact portion 58 and the bottom surface 55A of the recess 55 is larger than the diameter R1 of the electric wire 40. This makes it possible to prevent the electric wire 40 from being pinched between the contact portion 58 and the recess 55 and being damaged, even if the manufacturing tolerances of the contact portion 58 and the recess 55 are large.

[0039] [Regarding the effect of contact points] Since the wiring module 20 of this embodiment is used in a vehicle 1, it is conceivable that vibrations may be applied to the electric wires 40. In particular, if multiple electric wires 40 are integrated with tape or the like in the electric wire housing section 52, the vibrations applied to each electric wire 40 may become large. Furthermore, since the multiple electric wires 40 are connected to a connector, it is conceivable that tensile stress will be applied to the multiple electric wires 40 when this connector is connected to an external ECU or the like.

[0040] In this embodiment, as described above, the mounting surface 54 is made capable of contacting the electric wire 40 from below, and the contact portion 58 is made capable of contacting the electric wire 40 from above. Therefore, when vibration or tensile stress is applied to the electric wire 40, friction occurs between the electric wire 40 and the mounting surface 54 and the contact portion 58. This friction prevents vibration and tensile stress applied to multiple electric wires 40 from being transmitted to the connection portion between the electric wires 40 and the circuit board 21, which is located outside the electric wire housing portion 52. Thus, even when vibration or tensile stress is applied to multiple electric wires 40, damage to the connection portion between the electric wires 40 and the circuit board 21 can be suppressed.

[0041] [Effects of Embodiment 1] According to Embodiment 1, the following actions and effects are achieved. The wiring module 20 according to Embodiment 1 is a wiring module 20 that is attached to a plurality of energy storage elements 11 having electrode terminals, and comprises a plurality of busbars 30, a plurality of circuit boards 21, a plurality of electric wires 40, and a protector 50 that holds the plurality of busbars 30, the plurality of circuit boards 21, and the plurality of electric wires 40, wherein each busbar 30 is connected to an electrode terminal, each circuit board 21 is electrically connected to each busbar 30, and each electric wire 40 is connected to each circuit board 21, and the protector 50 has an electric wire housing section 52 that houses the plurality of electric wires 40, a mounting surface 54 on which each circuit board 21 is placed that is able to contact each electric wire 40 located outside the electric wire housing section 52, and a contact section 58 that is able to contact each electric wire 40 located outside the electric wire housing section 52 from the opposite side of the mounting surface 54 in a first direction (up and down direction) perpendicular to the mounting surface 54.

[0042] With this configuration, when vibration is applied to multiple wires 40, each wire 40 located outside the wire housing 52 comes into contact with the mounting surface 54 and the contact portion 58, and receives friction from the mounting surface 54 and the contact portion 58. As a result, vibration is less likely to be transmitted to the connection points between each wire 40 and each circuit board 21. Therefore, damage to the connection points between each wire 40 and each circuit board 21 can be suppressed.

[0043] In Embodiment 1, the protector 50 comprises a protector body 50A and a cover 50B that overlaps the protector body 50A in a first direction, the protector body 50A having a mounting surface 54 and the cover 50B having a contact portion 58.

[0044] With this configuration, the contact portion 58 can be easily provided. In addition, it becomes easier to route each electric wire 40 to the protector 50.

[0045] In Embodiment 1, the protector 50 is provided with a recess 55 that is recessed from the mounting surface 54, and the contact portion 58 is superimposed on the recess 55 when viewed from the first direction.

[0046] With this configuration, each wire 40, which is located outside the wire housing 52, can be positioned in a bent state within the recess 55, and the contact portion 58 can be pressed against each wire 40. Therefore, the friction between the contact portion 58 and each wire 40 can be increased, and damage to the connection between each wire 40 and each circuit board 21 can be suppressed even further.

[0047] In Embodiment 1, the distance D1 between the bottom surface 55A of the recess 55 and the contact portion 58 in the first direction is set to be larger than the diameter R1 of each electric wire 40.

[0048] With this configuration, if the distance D1 in the first direction between the bottom surface 55A of the recess 55 and the contact portion 58 becomes small due to manufacturing tolerances of the protector 50, it is possible to prevent each electric wire 40 from being pinched and damaged between the bottom surface 55A of the recess 55 and the contact portion 58.

[0049] <Embodiment 2> Embodiment 2 of this disclosure will be described with reference to Figures 8 to 12. The wiring module 120 according to Embodiment 2 is configured in the same way as Embodiment 1, except for the protector 150, so the same components and effects as in Embodiment 1 will not be described. Note that for multiple identical components, reference numerals may be assigned to only some of the components, while the reference numerals for other components may be omitted.

[0050] As shown in Figure 8, the protector 150 of the wiring module 120 comprises a protector body 150A and a cover 150B. As shown in Figure 11, the intermediate wiring section 153 of the protector body 150A has a mounting surface 54, but does not have the recess 55 of Embodiment 1. In the intermediate wiring section 153, the partition wall 56 is provided in the same position as in Embodiment 1.

[0051] As shown in Figure 12, the cover 150B comprises a top plate portion 57 and an elastic piece 160 extending from the top plate portion 57. The elastic piece 160 is elastically deformable in the vertical direction. The elastic piece 160 has a contact portion 161 at its center in its extending direction (left-right direction). The contact portion 161 is plate-shaped and extends horizontally.

[0052] When the cover 150B is attached to the protector body 150A, the electric wire 40 is sandwiched between the contact portion 161 and the mounting surface 54 located inside the partition wall 56, as shown in Figures 9 and 10. With this configuration, friction occurs between the electric wire 40 and the mounting surface 54 and the contact portion 161. Therefore, even if vibration or tensile stress is applied to the electric wire 40, the connection between the electric wire 40 and the circuit board 21 is less likely to be damaged.

[0053] Furthermore, since the contact portion 161 is provided on an elastic piece 160 that can be elastically deformed in the vertical direction, even if the electric wire 40 is sandwiched between the contact portion 161 and the mounting surface 54, the electric wire 40 is less likely to be damaged.

[0054] [Effects of Embodiment 2] According to Embodiment 2, the following actions and effects are achieved. In Embodiment 2, the protector 150 is elastically deformable in a first direction and includes an elastic piece 160 having a contact portion 161, the elastic piece 160 sandwiching each electric wire 40 between itself and the mounting surface 54.

[0055] With this configuration, each wire 40, which is positioned outside the wire housing 52, is held between the elastic piece 160 and the mounting surface 54, thereby increasing the friction between each wire 40 and the mounting surface 54 and the contact portion 161. Consequently, damage to the connection between each wire 40 and each circuit board 21 can be further suppressed.

[0056] <Other Embodiments> (1) In the above embodiments 1 and 2, the protectors 50 and 150 each comprised a protector body 50A and 150A and a cover 50B and 150B, respectively, but are not limited to this, and the protector may be composed of a single component. (2) In embodiments 1 and 2 described above, the circuit board 21 was a flexible substrate, but it is not limited to this, and the circuit board may be a rigid substrate. (3) In embodiments 1 and 2 described above, a partition wall 56 was provided, but the invention is not limited to this, and the partition wall may be omitted. [Explanation of Symbols]

[0057] 1: Vehicle 2: Energy storage pack 3: PCU 4: Wire harness 10: Energy storage module 11: Energy storage element 15: Small metal piece 20: Wiring module 21: Circuit board 22: Main board 22A: Electric Wire Land 23: Extension part 30: Bus bar 30A: Connecting busbar 30B: Output busbar 40: Electric wire 50,150: Protector 50A, 150A: Protector body 50B, 150B: Cover 51: Bus bar bay 52: Wire housing section 52A: Bottom wall 52B: Side wall 52C: Notch 53,153: Intermediate cable routing section 54: Mounting surface 55: Recess 55A: Bottom 55B: First connection surface 55C: Second connection surface 56: Partition wall 56A: Aperture 57: Top panel 58,161: Contact area 160: Elastic piece D1: The vertical distance between the bottom surface of the recess and the contact area. R1: Diameter of the electric wire

Claims

1. A wiring module that is attached to multiple energy storage elements having electrode terminals, Multiple busbars, Multiple circuit boards, Multiple power lines, The system comprises the plurality of busbars, the plurality of circuit boards, and the protector that holds the plurality of wires, Each of the busbars is connected to the electrode terminals, Each of the circuit boards is electrically connected to each of the busbars. Each of the aforementioned wires is connected to each of the aforementioned circuit boards. The protector is a wiring module having a wire housing section for housing the plurality of wires, a mounting surface on which each of the circuit boards is mounted and which is capable of contacting each of the wires located outside the wire housing section, and a contact section that is capable of contacting each of the wires located outside the wire housing section from the opposite side of the mounting surface in a first direction perpendicular to the mounting surface.

2. The protector comprises a protector body and a cover that overlaps the protector body in the first direction, The protector body has the aforementioned mounting surface, The wiring module according to claim 1, wherein the cover is provided with the contact portion.

3. The protector has a recess that is recessed from the aforementioned mounting surface, The wiring module according to claim 1 or claim 2, wherein the contact portion overlaps with the recess when viewed from the first direction.

4. The wiring module according to claim 3, wherein the distance in the first direction between the bottom surface of the recess and the contact portion is set to be greater than the diameter of each of the electric wires.

5. The protector is elastically deformable in the first direction and includes an elastic piece having the contact portion, The wiring module according to claim 1 or 2, wherein the elastic piece sandwiches each of the electric wires between itself and the mounting surface described above.

Images