Method for manufacturing busbar member

Abstract

To provide a bus bar member that covers a bus bar having a straight portion and a bent portion with a covering member, and has a configuration that facilitates ensuring insulation and a manufacturing method of the bus bar member.SOLUTION: A bus bar member 10 includes a bus bar 20 having a straight portion 21 and a bent portion 22, and a covering member 30 having insulating properties and covering the bus bar 20, and the covering member 30 includes a first covering portion 31 covering a part of the straight portion 21, and a second covering portion 32 different from the first covering portion 31 and covering a portion of the bent portion 22 that is not covered by the first covering portion 31. An end portion 32A of the second covering portion 32 overlaps an end portion 31A of the first covering portion 31.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a busbar member and a method for manufacturing a busbar member. [Background technology]

[0002] Conductive members such as bus bars are used with an insulating coating. For example, a cable portion disclosed in Patent Document 1 includes a conductor portion made of a conductive material such as metal, and an insulating coating that covers the conductor portion. The cable portion has a bent portion that is bent in a direction perpendicular to the extension direction of the straight portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] WO 2017 / 69209 Summary of the Invention [Problem to be solved by the invention]

[0004] As disclosed in Patent Document 1, when a structure in which a conductor is covered with a coating is bent, the coating at the bent portion may wrinkle or tear. If the coating wrinkles or tears, the insulation of the conductor may not be ensured.

[0005] The present disclosure provides a bus bar member in which a bus bar having straight portions and bent portions is covered with a covering member, and a manufacturing method for the bus bar member, which provides a configuration that makes it easier to ensure insulation of the bus bar member. [Means for solving the problem]

[0006] The bus bar member according to the present disclosure includes: A bus bar having a straight portion and a bent portion; a covering member having insulating properties and covering the bus bar; Equipped with The covering member is A first covering portion covering at least a portion of the straight portion; a second covering portion that covers a portion of the bent portion that is not covered by the first covering portion and is different from the first covering portion; having At least an end portion of the second covering portion overlaps an end portion of the first covering portion.

[0007] A method for manufacturing a bus bar member according to the present disclosure includes: A method for manufacturing a bus bar member, comprising: covering a bus bar with an insulating covering member, the method comprising the steps of: The bus bar has a straight portion and a bent portion, the covering member has a first covering portion covering at least a portion of the straight portion and a second covering portion covering a portion of the bent portion that is not covered by the first covering portion, At least a portion of the straight portion is covered with the first covering portion, forming the bent portion by bending a portion of the bus bar that is different from the straight portion; The bent portion is covered with the second covering portion so as to overlap with an end side portion of the first covering portion. A method for manufacturing a bus bar member. Effect of the Invention

[0008] The bus bar member according to the present disclosure has a configuration in which a bus bar having straight portions and bent portions is covered with a covering member, making it easier to ensure insulation. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a battery pack according to a first embodiment of the present disclosure. [Diagram 2] 4 is a plan view of one end of the bus bar member as viewed from the plate thickness direction. FIG. [Diagram 3] 5A to 5C are explanatory diagrams illustrating a manufacturing process of the bus bar member. [Figure 4] 10A to 10C are explanatory diagrams illustrating a conventional manufacturing process for a bus bar member. [Diagram 5]10A to 10C are explanatory views illustrating a manufacturing process of a bus bar member according to the second embodiment of the present disclosure. [Figure 6] FIG. 13 is a plan view of a bus bar member according to another embodiment of the present disclosure, as viewed in the plate thickness direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The following are examples of embodiments of the present disclosure. The following examples of features [1] to [4] may be combined in any combination without causing any inconsistency. The following examples of features [5] to [7] may be combined in any combination without causing any inconsistency.

[0011] [1] A bus bar having a straight portion and a bent portion; a covering member having insulating properties and covering the bus bar; Equipped with The covering member is A first covering portion covering at least a portion of the straight portion; a second covering portion that covers a portion of the bent portion that is not covered by the first covering portion and is different from the first covering portion; having At least an end portion of the second covering portion overlaps with an end portion of the first covering portion. Busbar components.

[0012] In this busbar member, the second covering portion, which is different from the first covering portion, covers the portion of the bent portion that is not covered by the first covering portion, so that the configuration of the second covering portion is unlikely to affect the first covering portion. Furthermore, because the end side portion of the second covering portion overlaps with the end side portion of the first covering portion, exposure of the busbar between the first covering portion and the second covering portion can be suppressed. This makes it easier to ensure the insulation of the busbar member.

[0013] [2] The bus bar member of the present disclosure can be used in a battery pack. According to this configuration, the bus bar member can be applied to a bus bar used in a battery pack through which a large current tends to flow.

[0014] [3] In the busbar component disclosed herein, an end of the straight portion on the bent portion side may be provided with a portion that is not covered by the first covering portion. According to this configuration, the portion of the straight section at the end on the bent section side that is not covered by the first covered section can be used to attach a jig, etc., thereby preventing the first covered section from being affected by the attachment of the jig, etc.

[0015] [4] In the busbar component disclosed herein, the bent portion can bend in a direction along a plate surface of the straight portion. In a configuration in which the bent portion is bent in a direction along the plate surface of the straight portion, the inner peripheral portion is bent to a greater extent and the outer peripheral portion is stretched to a greater extent, which makes it easier for deformation, etc. to occur in the second covering portion. Therefore, by applying a configuration of the second covering portion (a configuration in which the covering portion is different from the first covering portion) to the bent portion thus formed, a noticeable effect is achieved in that the influence of deformation, etc. of the second covering portion is less likely to extend to the first covering portion.

[0016] [5] A method for manufacturing a bus bar component, comprising covering a bus bar with an insulating covering member, comprising the steps of: The bus bar has a straight portion and a bent portion, the covering member has a first covering portion covering at least a portion of the straight portion and a second covering portion covering a portion of the bent portion that is not covered by the first covering portion, At least a portion of the straight portion is covered with the first covering portion, forming the bent portion by bending a portion of the bus bar that is different from the straight portion; The bent portion is covered with the second covering portion so as to overlap with an end side portion of the first covering portion. A method for manufacturing a bus bar member.

[0017] This method of manufacturing a busbar member forms a bent portion in the busbar and then forms a second covering portion that covers the bent portion, thereby making it possible to prevent wrinkling, tearing, and the like of the covering portion caused by bending the busbar. In addition, since an end portion of the second covering portion overlaps an end portion of the first covering portion, it is possible to prevent the busbar from being exposed between the first covering portion and the second covering portion. This makes it easier to ensure the insulation of the busbar member.

[0018] [6] In the busbar component disclosed herein, the first covering portion may be formed by extrusion molding. According to this configuration, by using extrusion molding to form the first covering portion, it is possible to reduce the cost of forming the first covering portion and simplify the process.

[0019] [7] In the busbar member disclosed herein, the straight portion may be covered with the first covering portion, and an adjacent portion adjacent to the straight portion may be covered with an adjacent covering portion, the adjacent covering portion may be removed, and the adjacent portion may be bent to form the bent portion, and the bent portion may be covered with the second covering portion so as to overlap with an end portion of the first covering portion. When bending the adjacent portion covered with the adjacent covering portion, wrinkles, tears, etc. may occur in the adjacent covering portion. Therefore, by removing the adjacent covering portion in advance and then covering the bent portion with the second covering portion, it is possible to cover the bent portion with the second covering portion in which the occurrence of wrinkles, tears, etc. is suppressed.

[0020] First Embodiment 1. Busbar component structure The bus bar member 10 of the first embodiment is a bus bar member for large current. The bus bar member 10 is used in vehicles such as electric vehicles and hybrid vehicles. For example, as shown in FIG. 1, the bus bar member 10 is used in a battery pack 12 mounted on a vehicle such as an electric vehicle or a hybrid vehicle. The battery pack 12 accommodates a plurality of battery modules 14 in a case 16. Note that FIG. 1 illustrates only one battery pack 12. The battery module 14 is an assembly of a plurality of battery cells. In the example of FIG. 1, the bus bar member 10 is used in a power path that extracts power from the battery module 14 to the outside. Note that the bus bar member 10 can also be used as a power path that connects electrodes between the battery modules 14.

[0021] As shown in FIG. 2, the busbar member 10 includes a busbar 20 and a covering member 30. The busbar 20 is a conductive member made of a conductive material (e.g., aluminum, copper, etc.). The busbar 20 is formed, for example, by punching a metal plate. The busbar 20 is in the shape of a flat plate. The busbar 20 has a straight portion 21 and a bent portion 22. The straight portion 21 is a portion that extends in a predetermined direction and has a pair of parallel edges. The bent portion 22 is a portion that bends with respect to the straight portion 21. That is, the bent portion 22 is a portion that extends from an end portion 21B of the straight portion 21 so as to be bent. The bent portion 22 is bent in a direction along the plate surface 21A of the straight portion 21. The bent portion 22 has a so-called edgewise bent shape (a shape in which the long side of the cross section of the straight portion 21 is bent in the horizontal direction). The inner edge (edge ​​on the inner periphery side) and the outer edge (edge ​​on the outer periphery side) of the bent portion 22 are curved.

[0022] As shown in FIG. 2, the covering member 30 covers the bus bar 20. The covering member 30 has insulating properties. The covering member 30 is made of, for example, a flexible resin. The covering member 30 has a first covering portion 31 and a second covering portion 32. The first covering portion 31 covers a part of the straight portion 21. The first covering portion 31 does not cover the bent portion 22. An end portion 21B (a portion adjacent to the bent portion 22) of the straight portion 21 on the bent portion 22 side is provided with a portion (first uncovered portion 21C) that is not covered by the first covering portion 31. The first uncovered portion 21C is a portion surrounded by a dashed line AR1 in FIG. 2. The first uncovered portion 21C is provided around the entire circumference of the end portion 21B. In this way, by providing the first uncovered portion 21C on the straight portion 21, the first uncovered portion 21C can be used to attach a jig, etc., and the attachment of the jig, etc. can be prevented from affecting the first covered portion 31.

[0023] As shown in FIG. 2, the second covered portion 32 is a covered portion different from the first covered portion 31. The second covered portion 32 covers a portion of the bent portion 22 that is not covered by the first covered portion 31 (the entire bent portion 22 in FIG. 2). The second covered portion 32 covers a portion of the first covered portion 31 and a portion of the straight portion 21. Specifically, the second covered portion 32 covers the end portion 31A of the first covered portion 31 on the bent portion 22 side. The end portion 32A of the second covered portion 32 on the straight portion 21 side covers the end portion 31A of the first covered portion 31 over the entire circumference. That is, the end portion 32A of the second covered portion 32 overlaps the end portion 31A of the first covered portion 31 over the entire circumference.

[0024] 2, the second covered portion 32 covers the first uncovered portion 21C of the straight portion 21. Specifically, a portion (adjacent portion 32B) adjacent to the end portion 32A of the second covered portion 32 covers the entire periphery of the first uncovered portion 21C.

[0025] 2, since a part of the straight portion 21 is covered with the first covered portion 31 and the bent portion 22 is covered with the second covered portion 32, the second covered portion 32 is less likely to affect the first covered portion 31 compared to a configuration in which the first covered portion 31 and the second covered portion 32 are provided integrally (a configuration in which they are continuous without interruption). For example, it is possible to make it difficult for a change in the shape of the second covered portion 32 to affect the shape of the first covered portion 31.

[0026] In a configuration in which the bent portion 22 is bent in a direction along the plate surface of the straight portion 21, the inner peripheral edge of the bent portion 22 is bent to a greater extent, and the outer peripheral edge of the bent portion 22 is stretched to a greater extent. This makes it easier for deformation and the like to occur in the second covering portion 32 that covers the bent portion 22. By applying the configuration of the second covering portion 32 (a configuration in which the second covering portion 32 is a covering portion different from the first covering portion 31) to the bent portion 22 formed in this manner, the effect of making it difficult for the deformation of the second covering portion 32 and the like to affect the first covering portion 31 becomes prominent.

[0027] 2, the end 32A of the second covered portion 32 and the end 31A of the first covered portion 31 overlap with each other, which prevents the busbar 20 from being exposed between the first covered portion 31 and the second covered portion 32. For example, it is possible to prevent a gap from being generated between the second covered portion 32 and the first covered portion 31, which prevents the busbar 20 from being exposed. This makes it easier to ensure the insulation of the busbar member 10.

[0028] 2. Manufacturing method of busbar components Next, a method for manufacturing the busbar member 10 will be described. First, as shown in FIG. 3(A), a straight busbar 40 is prepared. Next, as shown in FIG. 3(B), the entire length of the busbar 40 (whole circumference excluding both end faces) is covered with an overall covering portion 50. The overall covering portion 50 has insulating properties. The overall covering portion 50 is made of, for example, a flexible resin. The overall covering portion 50 is formed, for example, by extrusion molding. For example, the overall covering portion 50 is formed by disposing a tubular insulating member by extrusion molding so as to cover the circumferential surface of the busbar 40, and then heat shrinking the member. In this way, by using extrusion molding to form the overall covering portion 50, costs can be reduced and the process can be simplified.

[0029] In busbar 40, the portion included in the area surrounded by dashed dotted line AR2 shown in FIG. 3B corresponds to straight portion 21. The area surrounded by dashed dotted line AR2 includes first uncovered portion 21C (area surrounded by dashed dotted line AR1). In busbar 40, the portion included in the area surrounded by dashed dotted line AR3 shown in FIG. 3B is adjacent portion 42 adjacent to part of straight portion 21 (portion excluding first uncovered portion 21C). In fully covered portion 50, the portion included in the area surrounded by dashed dotted line AR3 shown in FIG. 3B is adjacent covered portion 52 that covers adjacent portion 42.

[0030] 3(C), adjacent covered portion 52 is removed from adjacent portion 42. This forms first covered portion 31 that covers a part of straight portion 21 (a portion excluding first uncovered portion 21C). At the same time, first uncovered portion 21C is formed in a portion (area AR1) surrounded by a dashed line in FIG. 3(C).

[0031] 3(D), a portion of the busbar 40 different from the straight portion 21 (adjacent portion 42) is bent to form the bent portion 22. The bent portion 22 is formed so as to bend from the end portion 21B of the straight portion 21. The bent portion 22 is formed by bending in a direction along the plate surface 21A of the straight portion 21. The bent portion 22 is formed by so-called edgewise bending (a bending method in which the long side of the cross section of the straight portion 21 is bent in the horizontal direction). For example, the bent portion 22 can be formed using a jig attached to the first uncovered portion 21C.

[0032] 3(E), the bent portion 22 is covered with the second covered portion 32 so as to overlap the end 31A of the first covered portion 31 on the bent portion 22 side and the portion (adjacent portion 32B) of the second covered portion 32 adjacent to the end 32A. Specifically, the second covered portion 32 is formed so that the end 32A covers the end 31A of the first covered portion 31 and the adjacent portion 32B covers the first non-covered portion 21C. Here, the end 32A of the second covered portion 32 is made to overlap the entire circumference of the end 31A of the first covered portion 31. The second covered portion 32 is formed, for example, by covering the bent portion 22 with a tubular insulating member and heat shrinking it. By covering the bent portion 22 with the second covered portion 32 after removing the adjacent covered portion 52 in advance, the bent portion 22 can be covered with the second covered portion 32 in which the occurrence of wrinkles, tears, etc. is suppressed. Since the end 32A of the second covered portion 32 and the end 31A of the first covered portion 31 overlap, it is possible to prevent the bus bar 20 from being exposed between the first covered portion 31 and the second covered portion 32. This makes it easier to ensure the insulation of the bus bar member 10. The bus bar member 10 is manufactured in the above manner.

[0033] FIG. 4 is an explanatory diagram for explaining a conventional manufacturing method of a busbar member. In the conventional manufacturing method of a busbar member, as shown in FIG. 4, after covering the busbar 120 with the covering member 130, the busbar 120 covered with the covering member 130 is bent to form the bent portion 122. That is, the covering portion covering the bent portion 122 is formed in advance before the bent portion is formed. In such a configuration, wrinkles, tears, etc. are likely to occur in the portion of the covering member 130 covering the bent portion 122 due to bending of the busbar. In particular, in a configuration in which the bent portion is bent in a direction along the plate surface of the straight portion, the degree of bending of the inner peripheral portion becomes large and the elongation of the outer peripheral portion becomes large, so that deformation, etc., is likely to occur in the covering member. For example, wrinkles are likely to occur in the portion covering the inner peripheral portion of the bent portion 122 (the portion surrounded by the dashed line in FIG. 4). As described above, in the conventional manufacturing method of a busbar member, it is difficult to ensure the processing accuracy of the covering member covering the bent portion 122. On the other hand, in the manufacturing method of the busbar member disclosed herein, the bent portion 22 is formed in the busbar 20, and then the second covering portion 32 is formed to cover the bent portion 22. Therefore, in the manufacturing method of the busbar member disclosed herein, the bending process of the busbar 20 does not affect the second covering portion 32, and therefore it is possible to suppress the occurrence of wrinkles, tears, and the like in the covering portion caused by the bending process of the busbar 20.

[0034] The busbar manufacturing method of the present disclosure is configured to divide the covering member 30 into a first covering portion and a second covering portion 32, and to cover a part of the straight portion 21 with the first covering portion 31 before forming the bent portion 22. Therefore, when forming the first covering portion 31, it is not necessary to insert the busbar 20 (particularly the bent portion 22) into a relatively long tubular insulating member, and this simplifies the manufacturing method.

[0035] 3.Examples of effects The following description relates to the effects of the first embodiment. According to the busbar member 10 of the present disclosure, the second covered portion 32, which is different from the first covered portion 31, covers the portion of the bent portion 22 that is not covered by the first covered portion 31, so that the configuration of the second covered portion 32 does not affect the first covered portion 31. Furthermore, since the end portion (end portion 32A) of the second covered portion 32 and the end portion (end portion 31A) of the first covered portion 31 overlap, it is possible to prevent the busbar 20 from being exposed between the first covered portion 31 and the second covered portion 32. This makes it easier to ensure the insulation of the busbar member 10.

[0036] The bus bar member 10 of the present disclosure is used in a battery pack 12. This allows the bus bar member 10 to be applied to a bus bar used in the battery pack 12 through which a large current tends to flow.

[0037] In the busbar member 10 of the present disclosure, the end 21B of the straight portion 21 on the bent portion 22 side is provided with a portion (first uncovered portion 21C) that is not covered by the first covered portion 31. This makes it possible to use the first uncovered portion 21C to perform attachment of a jig or the like, and to prevent the first covered portion 31 from being affected by the attachment of the jig or the like.

[0038] In the busbar member 10 of the present disclosure, the bent portion 22 is bent in a direction along the plate surface 21A of the straight portion 21. In a configuration in which the bent portion 22 is bent in a direction along the plate surface 21A of the straight portion 21, the inner peripheral portion is bent to a greater extent and the outer peripheral portion is stretched to a greater extent, which makes it easier for deformation and the like to occur in the second covered portion 32. Therefore, by applying the configuration of the second covered portion 32 (a configuration in which the second covered portion 32 is a different covered portion from the first covered portion 31) to the bent portion 22 thus formed, a noticeable effect is achieved in that the influence of deformation and the like of the second covered portion 32 is less likely to extend to the first covered portion 31.

[0039] In the manufacturing method of the busbar member 10 of the present disclosure, a part of the straight portion 21 is covered with the first covering portion 31, a portion of the busbar 20 other than the straight portion 21 is bent to form the bent portion 22, and the bent portion 22 is covered with the second covering portion 32 so as to overlap with the end portion (end portion 31A) of the first covering portion 31. By forming the bent portion 22 in the busbar 20 and then forming the second covering portion 32 that covers the bent portion 22 in this manner, it is possible to suppress the occurrence of wrinkles, tears, and the like in the covered portion due to the bending process of the busbar 20. In addition, since the end portion (end portion 32A) of the second covering portion 32 and the end portion (end portion 31A) of the first covering portion 31 overlap, it is possible to suppress the exposure of the busbar 20 between the first covering portion 31 and the second covering portion 32. This makes it easier to ensure the insulation of the busbar member 10.

[0040] In the manufacturing method of the busbar member 10 according to the present disclosure, the first covered portion 31 is formed by extrusion molding. By using extrusion molding to form the first covered portion 31, the cost of forming the first covered portion 31 can be reduced and the process can be simplified.

[0041] In the manufacturing method of the busbar member 10 of the present disclosure, the straight portion 21 is covered with the first covering portion 31, and the adjacent portion 42 adjacent to the straight portion 21 is covered with the adjacent covering portion 52, the adjacent covering portion 52 is removed, and the adjacent portion 42 is bent to form the bent portion 22. When bending the adjacent portion 42 in a state where it is covered with the adjacent covering portion 52, there is a risk that wrinkles, tears, and the like will occur in the adjacent covering portion 52. Therefore, by removing the adjacent covering portion 52 in advance and then covering the bent portion 22 with the second covering portion 32, it is possible to cover the bent portion 22 with the second covering portion 32 in which the occurrence of wrinkles, tears, and the like is suppressed.

[0042] <Second embodiment> The following description relates to a method for manufacturing the bus bar component of the second embodiment. 5, only the step of removing the adjacent cover portion 52 differs from that of the first embodiment, and the other points are the same as those of the first embodiment. Therefore, in the description of the method for manufacturing a busbar member of the second embodiment, the same reference numerals as those of the first embodiment are used for parts having the same configuration as those of the first embodiment, and detailed description thereof will be omitted.

[0043] In the method of manufacturing a busbar member according to the second embodiment, as shown in Fig. 5(A), first, a straight busbar 40 is prepared in the same manner as in the first embodiment. Next, as shown in Fig. 5(B), the entire length of the busbar 40 (the entire circumference excluding both end faces) is covered with an entire covering portion 50 in the same manner as in the first embodiment.

[0044] 5(C), a portion of the busbar 40 different from the straight portion 21 (adjacent portion 42) is bent to form the bent portion 22. The shape of the bent portion 22 is the same as the shape of the bent portion 22 formed in the first embodiment. At this time, a jig can be attached to a portion of the fully covered portion 50 that covers the first uncovered portion 21C (central portion 53). The central portion 53 is the portion surrounded by the dashed dotted line AR1 shown in FIGS. 5(B) and (C). As a result, even if the central portion 53 is damaged by the attachment of a jig or the like, the insulation of the busbar member 10 is not impaired because this portion is removed in a later process.

[0045] 5(D), the adjacent covered portion 52 is removed from the bent portion 22. This forms the first covered portion 31 that covers a part of the straight portion 21 (a portion excluding the first uncovered portion 21C).

[0046] 5(E), the second covering portion 32 is formed by the same method as in the first embodiment. In this manner, the bus bar member 10 is manufactured. With such a manufacturing method, it is possible to achieve the same effects as in the first embodiment.

[0047] <Other embodiments> The present disclosure is not limited to the embodiments described above and in the drawings. For example, the features of the above or later described embodiments can be combined in any combination within a range that does not contradict. In addition, any feature of the above or later described embodiments can be omitted unless it is clearly stated as essential. Furthermore, the above-mentioned embodiment may be modified as follows.

[0048] In the first embodiment, the configuration of one end of the bus bar member 10 is illustrated, but both ends of the bus bar member 10 may be bent as shown in Fig. 6. Even with such a configuration, it is easy to ensure the insulation of the bus bar member 10 without the configuration of the second covering portion 32 affecting the first covering portion 31.

[0049] In the first embodiment, the end 32A of the second covering portion 32 and the end 31A of the first covering portion 31 overlap with each other, but at least one of the second covering portion 32 and the first covering portion 31 may overlap with the other covering portion over a range wider than the end.

[0050] In the first embodiment, the first covered portion 31 covers the straight portion 21 except for the first uncovered portion 21C, but the first covered portion 31 may be configured to cover the straight portion 21 including the first uncovered portion 21C.

[0051] In the first embodiment, the second covering portion 32 covers the entire bent portion 22, but it may be configured to cover only a part of the bent portion 22.

[0052] In the first embodiment, the bent portion 22 is bent in a direction along the plate surface of the straight portion 21, but it may be configured to be bent in another direction. [Explanation of symbols]

[0053] 10...Busbar member 12…Battery pack 14…Battery module 16…Case 20…Busbar 21…Straight section 21A…Plate surface 21B...End part 21C…First uncoated section 22…Bent section 30…Covering material 31…First covering part 31A...end 32…Second coating part 32A...end 32B…adjacent area 40…Busbar 42…adjacent part 50…Full coverage 52...Adjacent covering part 53...Central part 120…Busbar 122…Bent section 130...Covering member

Claims

1. A method for manufacturing a busbar member, comprising covering a busbar with an insulating covering member, the method comprising the steps of: The bus bar has a straight portion and a bent portion, the covering member has a first covering portion covering at least a portion of the straight portion and a second covering portion covering a portion of the bent portion that is not covered by the first covering portion, At least a portion of the straight portion is covered with the first covering portion, forming the bent portion by bending a portion of the bus bar that is different from the straight portion; The bent portion is covered with the second covering portion so as to overlap with an end side portion of the first covering portion. A method for manufacturing a bus bar member.

2. The first covering portion is formed by extrusion molding. The method for manufacturing the bus bar member according to claim 1 .

3. At least a portion of the straight portion is covered with the first covering portion, and an adjacent portion adjacent to at least a portion of the straight portion is covered with an adjacent covering portion; removing the adjacent coating portion; bending the adjacent portion to form the bent portion; The bent portion is covered with the second covering portion so as to overlap with an end portion of the first covering portion. The method for manufacturing the bus bar member according to claim 1 or 2.

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