Battery wiring module

Abstract

A battery wiring module capable of easily managing components is provided. A housing (12) has a first housing body (21) having a first electric wire insertion portion (31), a second housing body (22) having a second electric wire insertion portion (41), a first cover (24) assembled to the first housing body (21) and covering the first electric wire insertion portion (31), and a second cover (25) assembled to the second housing body (22) and covering the second electric wire insertion portion (41). Moreover, the first cover (24) and the second cover (25) are the same shape as each other.

Description

Technical Field

[0001] This disclosure relates to a battery wiring module. Background Technology

[0002] For example, as disclosed in Patent Document 1, in vehicles such as electric vehicles and hybrid vehicles, a battery wiring module is installed in a high-voltage secondary battery that serves as a power source for driving. The battery wiring module of Patent Document 1 includes wires electrically connected to the secondary battery and a housing for housing the wires. The housing of the battery wiring module has multiple housing bodies arranged along the length of the wires and multiple covers corresponding to each housing body. Each housing body has a slotted wire insertion portion through which the power supply wire passes, and each cover covers the wire insertion portion of the corresponding housing body. The covers protect the wires passing through the wire insertion portions of the housing bodies. With this structure, for example, when the secondary battery thermally expands along the length of the wires, each housing body and each cover moves along the length of the wires following the thermal expansion of the secondary battery, thus ensuring high reliability of the connection between the secondary battery and the battery wiring module.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-161566 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the battery wiring module of Patent Document 1, each cover is integrally mounted relative to the respective housing body via hinges. However, sometimes due to design constraints, it is not possible to integrally mount each cover to the respective housing body. In this case, each cover becomes an independent component relative to the housing body, and therefore, if the covers have different shapes, component management becomes complicated. In recent vehicles, there has been a trend towards larger secondary batteries. If the number of housing bodies increases along with the increase in the size of the secondary battery, then in structures where the covers are not integral with the housing body, the number of covers also increases, making component management particularly complicated.

[0008] Therefore, the object of the present invention is to provide a battery wiring module that enables easy component management.

[0009] Solution for solving the problem

[0010] The battery wiring module disclosed herein is a battery wiring module assembled on a secondary battery, comprising: a wire electrically connected to the secondary battery; and a housing for housing the wire, the housing having: a first housing body having a first wire insertion portion through which the wire passes; a second housing body having a second wire insertion portion through which the wire passes; a first cover assembled to the first housing body and covering the first wire insertion portion; and a second cover assembled to the second housing body and covering the second wire insertion portion, the first cover and the second cover having the same shape.

[0011] The effects of the invention

[0012] According to this disclosure, a battery wiring module that enables easy component management can be provided. Attached Figure Description

[0013] Figure 1 This is a perspective view of the battery wiring module in the implementation method.

[0014] Figure 2 This is a top view showing the state of the battery wiring module after the first to third covers have been removed.

[0015] Figure 3 This is an enlarged perspective view showing a portion of the battery wiring module in this manner.

[0016] Figure 4 This is an enlarged perspective view showing a portion of the battery wiring module in this manner.

[0017] Figure 5 This is a top view illustrating the assembly method of the first to third covers in the battery wiring module. Detailed Implementation

[0018] [Description of embodiments of this disclosure]

[0019] First, embodiments of this disclosure will be described.

[0020] The battery wiring module disclosed herein is configured as follows:

[0021] [1] A battery wiring module, assembled in a secondary battery, includes: a wire electrically connected to the secondary battery; and a housing for housing the wire, the housing having: a first housing body having a first wire insertion portion through which the wire passes; a second housing body having a second wire insertion portion through which the wire passes; a first cover assembled in the first housing body and covering the first wire insertion portion; and a second cover assembled in the second housing body and covering the second wire insertion portion, the first cover and the second cover having the same shape.

[0022] According to this structure, since the first cover and the second cover have the same shape, the first cover and the second cover will not be treated as different parts in component management, and as a result, component management can be easily carried out.

[0023] [2] The first wire insertion portion has a first bottom wall portion, a pair of first side wall portions extending from the first bottom wall portion, and a plurality of first locking portions disposed on the first side wall portions along the insertion direction of the wire. The second wire insertion portion has a second bottom wall portion, a pair of second side wall portions extending from the second bottom wall portion, and a plurality of second locking portions disposed on the second side wall portions along the insertion direction of the wire. The first cover has a plurality of first locking portions that are respectively locked to the plurality of first locking portions. The second cover has a plurality of second locking portions that are respectively locked to the plurality of second locking portions. The arrangement interval of the plurality of first locking portions and the arrangement interval of the plurality of second locking portions are set to be equal to each other.

[0024] According to this structure, the arrangement intervals of the plurality of first locking portions and the arrangement intervals of the plurality of second locking portions are equal to each other, so even if the first cover and the second cover are formed into the same shape, they can be properly locked into the first wire insertion portion and the second wire insertion portion respectively.

[0025] [3] The first wire insertion portion has a first bottom wall portion and a pair of first side wall portions extending from the first bottom wall portion, and the second wire insertion portion has a second bottom wall portion and a pair of second side wall portions extending from the second bottom wall portion. The spacing between the pair of first side wall portions and the spacing between the pair of second side wall portions are set to be equal to each other.

[0026] According to this structure, the spacing between a pair of first sidewall portions is equal to the spacing between a pair of second sidewall portions. Therefore, even if the first cover and the second cover are made to have the same shape, the first wire insertion portion and the second wire insertion portion can be properly covered by the first cover and the second cover respectively.

[0027] [4] The first housing body has a plurality of first wire insertion parts, and the first cover is provided with a plurality of first wire insertion parts corresponding to each other. The second housing body has a plurality of second wire insertion parts, and the second cover is provided with a plurality of second wire insertion parts corresponding to each other. All the first cover and all the second cover are the same shape.

[0028] According to this structure, all the first covers and all the second covers are the same shape, so even in a shell structure with an increased number of first covers and second covers, component management can be easily carried out.

[0029] [5] The first cover and the second cover each have a marking portion that indicates the assembly direction relative to the corresponding first housing body or second housing body.

[0030] According to this structure, even in structures where the first cover and the second cover are of the same shape, the assembly direction of the first cover and the assembly direction of the second cover can be correctly determined by using the markings respectively provided on the first cover and the second cover. Therefore, the assembly operation of the first cover and the second cover can be performed smoothly.

[0031] [6] The markings are respectively disposed on the surface of the first cover and the surface of the second cover.

[0032] According to this structure, the markings are respectively provided on the surface of the first cover and the surface of the second cover, so the markings can be easily identified by visual inspection during the assembly of the first cover and the second cover.

[0033] [7] The housing comprises: a third housing body having a plurality of third wire insertion portions through which the wires pass; and a plurality of third covers assembled to the third housing body and respectively covering the plurality of third wire insertion portions, the plurality of third covers having the same shape as each other.

[0034] According to this structure, since the multiple third covers are of the same shape, the housing has multiple third covers in addition to the first and second covers, thus increasing the total number of covers. Even within the structure of this housing, component management can be easily carried out.

[0035] [Details of the embodiments disclosed herein]

[0036] Hereinafter, specific examples of the battery wiring module of this disclosure will be described with reference to the accompanying drawings. In the drawings, for ease of explanation, some parts of the structure are sometimes exaggerated or simplified. Additionally, the dimensional ratios of the parts may differ in different drawings. Furthermore, the invention is not limited to these examples, but is shown by the claims and is intended to include all modifications with the equivalent meaning and scope of the claims.

[0037] like Figure 1 As shown, the battery wiring module 10 of this embodiment is, for example, assembled in a secondary battery BT installed in an electric vehicle, hybrid vehicle, or the like. The secondary battery BT supplies power to a vehicle's drive motor (not shown). Furthermore, the secondary battery BT receives power from the drive motor and the generator motor depending on the charging state and the vehicle's operating state.

[0038] The secondary battery BT comprises multiple battery cells C. The secondary battery BT is formed into a generally cuboid shape by arranging the multiple battery cells C in one direction. A battery wiring module 10 is mounted on one side of the secondary battery BT. In the following description, the side of the secondary battery BT on which the battery wiring module 10 is mounted will be referred to as the upper surface; for the secondary battery BT, the side with the battery wiring module 10 will be described as the top. Furthermore, in the mutually orthogonal XYZ axes in the accompanying drawings, the X-axis represents the longitudinal direction X of the housing 12 of the battery wiring module 10, the Y-axis represents the width direction Y of the housing 12, and the Z-axis represents the height direction Z of the housing 12. Each battery cell C is arranged along the longitudinal direction X of the housing 12.

[0039] like Figure 1 and Figure 2 As shown, the battery wiring module 10 includes multiple wires 11 electrically connected to the secondary battery BT, and a housing 12 for storing the wires 11. Additionally, Figure 1 The diagram of wire 11 is omitted.

[0040] Furthermore, the battery wiring module 10 of this embodiment includes, for example, a plurality of busbars 13 supported by a housing 12. For example, multiple busbars 13 are arranged along the longitudinal direction X of the housing 12 on both sides of the width direction Y of the housing 12. Each busbar 13 is connected to a positive terminal and a negative terminal (not shown) disposed on the upper surface of each battery cell C.

[0041] like Figure 2 As shown, each busbar 13 is electrically connected to its corresponding wire 11. Each wire 11 is inserted into the interior of the housing 12 along its long side X. A portion of the multiple wires 11 are led out of the housing 12 from a first wire guide 14 located at one end of the housing 12 along its long side X, while the remaining multiple wires 11 are led out of the housing 12 from a second wire guide 15 located at the other end of the housing 12 along its long side X.

[0042] (Shell 12)

[0043] like Figure 1 As shown, the housing 12 includes: a first housing body 21, a second housing body 22, and a third housing body 23 arranged along the long side direction X of the housing 12; and a first cover 24, a second cover 25, and a third cover 26 corresponding to the first housing body 21, the second housing body 22, and the third housing body 23, respectively. The third housing body 23 is disposed between the first housing body 21 and the second housing body 22 along the long side direction X of the housing 12. Furthermore, the third cover 26 is located between the first cover 24 and the second cover 25 along the long side direction X of the housing 12. In addition, the first housing body 21 has the aforementioned first wire guide portion 14, and the third housing body 23 has the aforementioned second wire guide portion 15.

[0044] The first housing body 21 and the first cover 24 are formed separately. The second housing body 22 and the second cover 25 are formed separately. The third housing body 23 and the third cover 26 are formed separately. Furthermore, the first housing body 21, the second housing body 22, and the third housing body 23 are formed separately. Additionally, the first cover 24, the second cover 25, and the third cover 26 are formed separately. Moreover, the first housing body 21, the second housing body 22, the third housing body 23, the first cover 24, the second cover 25, and the third cover 26 are, for example, made of synthetic resin.

[0045] (First shell body 21)

[0046] like Figure 2 As shown, the first housing body 21 has a slot-shaped first wire insertion portion 31 through which the power supply line 11 passes. Additionally, Figure 2 This is a top view of the battery wiring module 10 after the first cover 24, the second cover 25, and the third cover 26 have been removed.

[0047] The first wire insertion portion 31 extends along the long side direction X of the housing 12. Furthermore, the first housing body 21 of this embodiment, for example, has two first wire insertion portions 31 arranged in the width direction Y of the housing 12. The two first wire insertion portions 31 are connected to each other via a first connecting portion 32.

[0048] Each first wire insertion portion 31 has a first bottom wall portion 33, a pair of first side wall portions 34 extending upward from the first bottom wall portion 33, and a plurality of first locking portions 35 disposed on each first side wall portion 34. The pair of first side wall portions 34 are opposite each other in the width direction Y. The first wire insertion portion 31 is formed into an upwardly opening groove shape by the first bottom wall portion 33 and each first side wall portion 34. A wire 11 is inserted between each first side wall portion 34.

[0049] Multiple first locking portions 35 are configured to protrude from the outer surface of each first sidewall portion 34. In addition, each first locking portion 35 provided on one first sidewall portion 34 and each first locking portion 35 provided on the other first sidewall portion 34 are provided at the same position relative to each other in the long side direction X of the housing 12.

[0050] (Second shell body 22)

[0051] The second housing body 22 has a slot-shaped second wire insertion portion 41 through which the power supply line 11 passes. The second wire insertion portion 41 extends along the long side direction X of the housing 12. In addition, the first housing body 21 of this embodiment, for example, has two second wire insertion portions 41 arranged in the width direction Y of the housing 12. The two second wire insertion portions 41 are connected to each other by a second connecting portion 42.

[0052] Each second wire insertion portion 41 has a second bottom wall portion 43, a pair of second side wall portions 44 extending upward from the second bottom wall portion 43, and a second locking portion 45 disposed on each second side wall portion 44. The pair of second side wall portions 44 are opposite each other in the width direction Y. The second wire insertion portion 41 is formed into an upwardly opening groove shape by the second bottom wall portion 43 and each second side wall portion 44. A wire 11 is inserted between each second side wall portion 44.

[0053] Multiple second locking portions 45 are configured to protrude from the outer surface of each second sidewall portion 44. Furthermore, each second locking portion 45 provided on one sidewall portion 44 and each second locking portion 45 provided on the other sidewall portion 44 are provided at the same position relative to each other in the long side direction X of the housing 12.

[0054] (Third shell body 23)

[0055] The third housing body 23 has a slot-shaped third wire insertion portion 51 through which the power supply line 11 passes. The third wire insertion portion 51 extends along the long side direction X of the housing 12. Furthermore, the third housing body 23 of this embodiment, for example, has two third wire insertion portions 51 arranged in the width direction Y of the housing 12. The two third wire insertion portions 51 are connected to each other by a third connecting portion 52. Additionally, the first wire insertion portion 31, the second wire insertion portion 41, and the third wire insertion portion 51 described above are arranged along the long side direction X of the housing 12.

[0056] Each third wire insertion portion 51 has a third bottom wall portion 53, a pair of third side wall portions 54 extending upward from the third bottom wall portion 53, and a plurality of third locking portions 55 provided on each third side wall portion 54. The pair of third side wall portions 54 are opposite each other in the width direction Y. The third wire insertion portion 51 is formed into an upwardly opening groove shape by the third bottom wall portion 53 and each third side wall portion 54. In addition, the third wire insertion portion 51 opens upward. A wire 11 is inserted between each third side wall portion 54.

[0057] Multiple third locking portions 55 are configured to protrude from the outer surface of each third sidewall portion 54. In addition, each third locking portion 55 provided on one third sidewall portion 54 and each third locking portion 55 provided on the other third sidewall portion 54 are provided at the same position relative to each other in the long side direction X of the housing 12.

[0058] (First Cover 24)

[0059] like Figure 1 and Figure 3As shown, in this embodiment, two first covers 24 are provided corresponding to the two first wire insertion portions 31 in the first housing body 21. The first covers 24 are assembled to the first housing body 21 to cover the top of the first wire insertion portions 31. The first covers 24 have first locking portions 61 that lock into the first locking portions 35 of the first wire insertion portions 31. Multiple first locking portions 61 are provided corresponding to multiple first locking portions 35 of the first wire insertion portions 31. The first locking portions 61 lock into the first locking portions 35 in the direction along the opening direction of the first wire insertion portions 31, i.e., the height direction Z. Thus, the first covers 24 are assembled to the first wire insertion portions 31. In addition, the first locking portions 61 are provided on both sides of the width direction Y of the first covers 24.

[0060] (Second cover 25)

[0061] like Figure 1 and Figure 2 As shown, in this embodiment, two second covers 25 are provided corresponding to the two second wire insertion portions 41 in the second housing body 22. The second covers 25 are assembled to the second housing body 22 to cover the top of the second wire insertion portions 41. The second covers 25 have second locking portions 71 that lock into the second locking portions 45 of the second wire insertion portions 41. Multiple second locking portions 71 are provided corresponding to the multiple second locking portions 45 of the second wire insertion portions 41. The second locking portions 71 lock into the second locking portions 45 in the direction along the opening direction of the second wire insertion portions 41, i.e., the height direction Z. Thus, the second covers 25 are assembled to the second wire insertion portions 41. In addition, the second locking portions 71 are provided on both sides of the second covers 25 in the width direction Y.

[0062] (Third Cover 26)

[0063] like Figure 1 and Figure 4 As shown, in this embodiment, two third covers 26 are provided corresponding to the two third wire insertion portions 51 in the third housing body 23. The two third covers 26 are identical in shape. The third covers 26 are assembled to the third housing body 23 to cover the top of the third wire insertion portions 51. The third cover 26 has a third locking portion 81 that locks into the third locking portion 55 of the third wire insertion portion 51. The third locking portion 81 locks into the third locking portion 55 in the direction along the opening direction of the third wire insertion portion 51, i.e., the height direction Z. Thus, the third cover 26 is assembled to the third wire insertion portion 51. Furthermore, the third locking portion 81 is provided on both sides of the third cover 26 in the width direction Y.

[0064] The first cover 24 extends toward the third housing body 23 in the long side direction X of the housing 12, and one end of the first cover 24 in the long side direction X is located above the third wire insertion part 51. The first locking part 61 provided at this end of the first cover 24 in the long side direction X is locked to a portion of a plurality of third locking parts 55. The end of the third cover 26 near the first cover 24 is located below the first cover 24.

[0065] The second cover 25 extends toward the third housing body 23 in the long side direction X of the housing 12, and one end of the second cover 25 in the long side direction X is located above the third wire insertion part 51. The second locking part 71 provided at this end of the second cover 25 in the long side direction X is locked to a portion of a plurality of third locking parts 55. The end of the third cover 26 near the second cover 25 is located below the second cover 25.

[0066] As described above, the housing 12 of this embodiment has a total of six covers that cover the portions through which the wires 11 are inserted. Furthermore, the two first covers 24 and the two second covers 25 of these six covers are all of the same shape. That is, each first cover 24 and each second cover 25 is the same component. Therefore, in the longitudinal direction X of the housing 12, the spacing between the plurality of first locking portions 61 of the first cover 24 and the spacing between the plurality of second locking portions 71 of the second cover 25 are equal.

[0067] In addition, such as Figure 2 As shown, in the long side direction X of the housing 12, the arrangement interval of the plurality of first locking portions 35 of the first wire insertion portion 31 is equal to the arrangement interval of the plurality of second locking portions 45 of the second wire insertion portion 41. Furthermore, the width direction Y-distance between a pair of first sidewall portions 34 in the first wire insertion portion 31 is equal to the width direction Y-distance between a pair of second sidewall portions 44 in the second wire insertion portion 41.

[0068] like Figure 1 As shown, each of the first covers 24 and each of the second covers 25 is provided with a marking portion 91. The marking portion 91 is provided on the surface 24a of each of the first covers 24 and the surface 25a of each of the second covers 25. The surface 24a of the first cover 24 is, for example, the upper surface of the first cover 24. Similarly, the surface 25a of the second cover 25 is, for example, the upper surface of the second cover 25. The marking portion 91 indicates the assembly direction of the first cover 24 and the assembly direction of the second cover 25 when viewed from above, i.e., when viewed along the height direction Z. The marking portion 91 is configured to be visually identifiable by being formed in a concave or convex shape on the surface 24a of the first cover 24 and the surface 25a of the second cover 25. Furthermore, the marking portion 91 has a directional shape; in this embodiment, for example, it is triangular when viewed from above.

[0069] A marking portion 92 is provided on the surface 26a of the third cover 26. The surface 26a of the third cover 26 is, for example, the upper surface of the third cover 26. The marking portion 92 indicates the assembly direction of the third cover 26 when viewed from above, i.e., when viewed along the height direction Z. The marking portion 92 is configured to be visually identifiable by being formed in a concave or convex shape on the surface 26a of the third cover 26. The marking portion 92 of the third cover 26 has, for example, a different shape than the marking portions 91 of the first cover 24 and the second cover 25. In addition, the marking portion 91 has a directional shape.

[0070] The function of this embodiment will be explained.

[0071] like Figure 5 As shown, when assembling the wire 11 into the housing 12, the first housing body 21 to the third housing body 23 are positioned on the worktable S. At this time, the insertion portions Sa, protruding from the upper surface of the worktable S, are inserted between a pair of first wire insertion portions 31, a pair of second wire insertion portions 41, and a pair of third wire insertion portions 51, respectively. Furthermore, Figure 5 The diagram of wire 11 is omitted.

[0072] After the wire 11 is stored in the first housing body 21 to the third housing body 23, the first cover 24 to the third cover 26 are assembled.

[0073] Here, when assembling the first cover 24 and the second cover 25, the first cover 24 and the second cover 25 are assembled based on a plurality of opposing side marking portions Sb provided at predetermined positions on the upper surface of the insertion portion Sa. The opposing side marking portions Sb have a shape corresponding to the marking portions 91 of the first cover 24 and the second cover 25. For example, the opposing side marking portions Sb have the same shape and the same size as the marking portions 91 when viewed from above. When assembling the first cover 24, the marking portions 91 of the first cover 24 are aligned with the opposing side marking portions Sb. Similarly, when assembling the second cover 25, the marking portions 91 of the second cover 25 are aligned with the opposing side marking portions Sb. As a result, the assembly direction of the first cover 24 and the second cover 25, which have the same shape, can be performed without confusion.

[0074] Furthermore, when assembling each third cover 26, each third cover 26 is assembled based on a plurality of opposing side marking portions Sc provided at predetermined positions on the upper surface of the insertion portion Sa. The opposing side marking portions Sc have a shape corresponding to the marking portion 92 of the third cover 26. For example, the opposing side marking portions Sc have the same shape and the same size as the marking portion 92 when viewed from above. When assembling each third cover 26, the marking portion 92 is aligned with the opposing side marking portion Sc. As a result, the assembly direction of two third covers 26 with the same shape can be performed without confusion.

[0075] The effects of this implementation method will be explained.

[0076] (1) Since each of the first covers 24 and each of the second covers 25 has the same shape, the first covers 24 and the second covers 25 will not be treated as different components in component management, and as a result, component management can be easily performed. In addition, in this embodiment, each of the third covers 26 has the same shape, so although the housing 12 has six covers for the wires 11, the types of components that are covers can be suppressed to two.

[0077] (2) The first wire insertion portion 31 has a first bottom wall portion 33, a pair of first side wall portions 34 extending from the first bottom wall portion 33, and a plurality of first locking portions 35 disposed on the first side wall portions 34 along the insertion direction of the wire 11. The second wire insertion portion 41 has a second bottom wall portion 43, a pair of second side wall portions 44 extending from the second bottom wall portion 43, and a plurality of second locking portions 45 disposed on the second side wall portions 44 along the insertion direction of the wire 11. The first cover 24 has a plurality of first locking portions 61 that are respectively locked to the plurality of first locking portions 35, and the second cover 25 has a plurality of second locking portions 71 that are respectively locked to the plurality of second locking portions 45. Moreover, the arrangement interval of the plurality of first locking portions 35 and the arrangement interval of the plurality of second locking portions 45 are set to be equal to each other. According to this structure, the arrangement interval of the plurality of first locking portions 35 is equal to the arrangement interval of the plurality of second locking portions 45. Therefore, even if the first cover 24 and the second cover 25 are made to have the same shape, they can be properly locked to the first wire insertion portion 31 and the second wire insertion portion 41 respectively.

[0078] (3) The spacing between the pair of first sidewall portions 34 in the first wire insertion portion 31 and the spacing between the pair of second sidewall portions 44 in the second wire insertion portion 41 are set to be equal. According to this structure, even if the first cover 24 and the second cover 25 are made to have the same shape, the first wire insertion portion 31 and the second wire insertion portion 41 can be appropriately covered by the first cover 24 and the second cover 25 respectively.

[0079] (4) The first housing body 21 has a plurality of first wire insertion portions 31, and the first cover 24 is provided with a plurality of first wire insertion portions 31 corresponding to each other. In addition, the second housing body 22 has a plurality of second wire insertion portions 41, and the second cover 25 is provided with a plurality of second wire insertion portions 41 corresponding to each other. According to this structure, each first cover 24 and each second cover 25 is of the same shape, so even in the structure of the housing 12 with an increased number of first covers 24 and second covers 25, component management can be easily carried out.

[0080] (5) The first cover 24 and the second cover 25 each have a marking portion 91 indicating the assembly direction relative to the corresponding first housing body 21 or second housing body 22. According to this structure, even in structures where the first cover 24 and the second cover 25 have the same shape, the marking portions 91 respectively provided on the first cover 24 and the second cover 25 allow for assembly without mistaking the assembly direction of the first cover 24 or the second cover 25. Therefore, the assembly operation of the first cover 24 and the second cover 25 can be performed smoothly.

[0081] (6) Marking portions 91 are respectively provided on the surface 24a of the first cover 24 and the surface 25a of the second cover 25. According to this structure, the marking portions 91 are respectively provided on the surface 24a of the first cover 24 and the surface 25a of the second cover 25, so the marking portions 91 can be easily identified by visual inspection during the assembly of the first cover 24 and the second cover 25.

[0082] (7) The housing 12 includes: a third housing body 23 having a plurality of third wire insertion portions 51 through which the power supply line 11 passes; and a plurality of third covers 26 assembled to the third housing body 23, each covering the plurality of third wire insertion portions 51. Moreover, the plurality of third covers 26 are identical in shape to each other. According to this structure, in addition to the first cover 24 and the second cover 25, the housing 12 also has a plurality of third covers 26, thereby increasing the total number of covers, and making component management easier in the structure of the housing 12.

[0083] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other within the scope of technical inconsistency.

[0084] The number of housing bodies in housing 12 is not limited to the above-described embodiments, and can be appropriately changed according to the size of the long side direction X of the secondary battery BT.

[0085] The housing 12 of the above embodiment has a total of six covers covering the parts through which the wires 11 are inserted, namely the first cover 24 to the third cover 26. However, the number of covers is not limited to the above embodiment and can be appropriately changed according to the size of the long side X of the secondary battery BT.

[0086] In the above embodiments, each first cover 24 and each second cover 25 are of the same shape, but are not limited thereto, as long as at least one of the plurality of first covers 24 and at least one of the plurality of second covers 25 are of the same shape.

[0087] In the above embodiment, the wires 11 are arranged in the long side direction X of the housing 12 formed along the arrangement direction of the battery cells C. However, in other cases, the wires 11 may also be arranged in the width direction Y of the housing 12.

[0088] Explanation of reference numerals in the attached figures

[0089] 10 Battery wiring module

[0090] 11. Electrical wires

[0091] 12. Shell

[0092] 13 busbars

[0093] 14 First wire outlet section

[0094] 15 Second wire outlet section

[0095] 21 First Shell Body

[0096] 22 Second shell body

[0097] 23 Third shell body

[0098] 24 First Cover

[0099] 24a surface

[0100] 25 Second Cover

[0101] 25a surface

[0102] 26 Third Cover

[0103] 26a surface

[0104] 31 First wire insertion part

[0105] 32 First connecting section

[0106] 33 First bottom wall section

[0107] 34 First side wall portion

[0108] 35 First stuck part

[0109] 41 Second wire insertion part

[0110] 42 Second connecting section

[0111] 43 Second bottom wall section

[0112] 44 Second side wall portion

[0113] 45 Second stuck part

[0114] 51 Third wire insertion section

[0115] 52 Third Linkage Section

[0116] 53 Third bottom wall section

[0117] 54 Third side wall

[0118] 55 Third stuck part

[0119] 61 First stop part

[0120] 71 Second stop part

[0121] 81 Third stop

[0122] 91 Marking section

[0123] 92 Marking section

[0124] BT secondary battery

[0125] C battery cell

[0126] S workbench

[0127] Sa Insertion

[0128] Sb Counter-side Marking

[0129] Sc Counter-side Marking

[0130] X-axis of the long side of housing 12

[0131] Y-direction of the width of housing 12

[0132] Z Height direction of shell 12

Claims

1. A battery wiring module, assembled in a secondary battery, comprising: A wire, which is electrically connected to the secondary battery; and The housing, which contains the wires, The housing has: The first housing body has a first wire insertion portion through which the wire passes; The second housing body has a second wire insertion portion through which the wire passes; The third housing body has a third wire insertion portion through which the wire passes; The first cover is assembled to the first housing body and covers the first wire insertion part; A second cover, assembled to the second housing body, covers the second wire insertion portion; and The third cover, assembled to the third housing body, covers the third wire insertion portion. The end of the third cover on the first cover side is located below the first cover, and the end of the third cover on the second cover side is located below the second cover. The first cover and the second cover are the same shape.

2. The battery wiring module according to claim 1, wherein, The first wire insertion portion has a first bottom wall portion, a pair of first side wall portions extending from the first bottom wall portion, and a plurality of first locking portions disposed on the first side wall portions along the insertion direction of the wire. The second wire insertion portion has a second bottom wall portion, a pair of second side wall portions extending from the second bottom wall portion, and a plurality of second locking portions disposed on the second side wall portions along the insertion direction of the wire. The first cover has a plurality of first locking portions that are respectively locked into the plurality of first locking portions. The second cover has a plurality of second locking portions that are respectively locked into the plurality of second locking portions. The configuration intervals of the plurality of first locking portions and the configuration intervals of the plurality of second locking portions are set to be equal to each other.

3. The battery wiring module according to claim 1 or claim 2, wherein, The first wire insertion portion has a first bottom wall portion and a pair of first side wall portions extending from the first bottom wall portion. The second wire insertion portion has a second bottom wall portion and a pair of second side wall portions extending from the second bottom wall portion. The spacing between the pair of first sidewall portions and the spacing between the pair of second sidewall portions are set to be equal.

4. The battery wiring module according to claim 1 or claim 2, wherein, The first housing body has multiple first wire insertion portions. The first cover is provided with multiple corresponding first wire insertion points. The second housing body has a plurality of second wire insertion portions. The second cover is provided with multiple corresponding second wire insertion points. Each of the first covers and each of the second covers are all of the same shape.

5. The battery wiring module according to claim 1 or claim 2, wherein, The first cover and the second cover each have a marking portion indicating the assembly direction relative to the corresponding first housing body or second housing body.

6. The battery wiring module according to claim 5, wherein, The markings are respectively disposed on the surface of the first cover and the surface of the second cover.

7. The battery wiring module according to claim 1 or claim 2, wherein, The third housing body has multiple third wire insertion portions. The third cover is provided in multiple ways corresponding to the multiple third wire insertion parts. The multiple third covers are all of the same shape.

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