Bus bar and photovoltaic module

Abstract

The utility model discloses a bus bar and a photovoltaic assembly, the bus bar comprises a conductive substrate, a metal layer and a resin layer, the metal layer and the resin layer are respectively arranged on two opposite sides of the conductive substrate, and the resin layer is connected with the conductive substrate in a face-to-face contact mode. The metal layer and the resin layer are arranged on the two opposite sides of the conductive substrate respectively, so that the resin layer and the conductive substrate can be connected in a face-to-face contact mode, the metal layer between the resin layer and the conductive substrate in the prior art can be omitted, the resin layer and the conductive substrate can be connected more firmly, production of the bus bar is facilitated, and the production cost of the bus bar is reduced. The cost is saved and the performance of the bus bar is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a bus bar and a photovoltaic component. Background Art

[0002] At present, the black busbar is composed of a resin layer, a metal layer, a conductive substrate and a resin layer, and the resin layer, the metal layer, the conductive substrate and the resin layer are connected in a surface-to-surface contact manner. This will result in the black busbar being connected to the elastic composite material during the production of photovoltaic modules. The connection method is usually spot-hot fixing. If the spot-hot fixing temperature exceeds the temperature of the metal layer, this will cause the resin layer on the surface of the metal layer to fall off, thereby affecting the appearance, and is not conducive to the stability of the black busbar, and thus affecting the performance of the photovoltaic modules. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a busbar that can more firmly connect the conductive substrate and the resin layer and prevent the resin layer from falling off, thereby facilitating the production and application of photovoltaic modules.

[0004] The utility model further proposes a photovoltaic component.

[0005] The busbar according to the present invention comprises: a conductive substrate, a metal layer and a resin layer. The metal layer and the resin layer are respectively arranged on opposite sides of the conductive substrate, and the resin layer is connected to the conductive substrate in a surface-to-surface contact manner.

[0006] According to the busbar of the present invention, a metal layer and a resin layer are respectively arranged on opposite sides of a conductive substrate. Such an arrangement enables the resin layer and the conductive substrate to be connected in surface-to-surface contact, thereby omitting the metal layer between the resin layer and the conductive substrate in the prior art, and also making the connection between the resin layer and the conductive substrate more firmly, thereby facilitating the production of the busbar, saving costs and improving the performance of the busbar.

[0007] In some examples of the present invention, the resin layer is a black resin layer; and / or the conductive substrate is a copper substrate; and / or the metal layer is a tin layer.

[0008] In some examples of the present invention, a first contact area and a first detection area are formed on one side surface of the conductive substrate. In the length direction of the conductive substrate, the first detection area is located at one end of the first contact area, and the resin layer is arranged in the first contact area and avoids the first detection area.

[0009] In some examples of the present invention, a second contact area and a second detection area are formed on the other side surface of the conductive substrate, the first detection area corresponds to the second detection area, and the first detection area corresponds to the second detection area. The metal layer is arranged in the second contact area and avoids the second detection area.

[0010] In some examples of the present invention, the conductive substrate includes: a first section, a second section and a third section, the first section is suitable for contacting the battery string, the second section is connected to the first section and bent relative to the first section, and the third section is connected to the second section and bent relative to the second section; wherein, one side surface of the first section and the second section forms the first contact area, one side surface of the third section forms the first detection area, the other side surface of the first section and the second section forms the second contact area, and the other side surface of the third section forms the second detection area.

[0011] In some examples of the present invention, in the length direction of the conductive substrate, a portion of the metal layer protrudes from one end of the conductive base layer, and the portion of the metal layer constitutes the detection portion.

[0012] In some examples of the present invention, the metal layer includes: a first metal layer and a second metal layer, the first metal layer is arranged on the conductive substrate, and the second metal layer is connected to the first metal layer and the portion protruding from one end of the conductive base layer constitutes the detection part.

[0013] In some examples of the present invention, in the length direction of the conductive substrate, the first metal layer is flush with both ends of the conductive substrate; the second metal layer includes: a connecting portion and a detecting portion, the connecting portion is connected to the surface of the first metal layer facing away from the conductive substrate, and the detecting portion and the connecting portion are integrally formed and protrude from one end of the conductive substrate.

[0014] In some examples of the present invention, the conductive substrate includes: a first segment, a second segment and a third segment, the first segment is suitable for contacting the battery string, the second segment is connected to the first segment and bent relative to the first segment, and the third segment is connected to the second segment and bent relative to the second segment; wherein the resin layer is arranged on one side surface of the first segment, the second segment and the third segment, and the first metal layer is arranged on the other side surface of the first segment, the second segment and the third segment.

[0015] According to the photovoltaic module of the present invention, it includes: glass, battery strings, adhesive film and the bus bar mentioned above, the adhesive film is arranged between the battery strings and the glass, at least one of the conductive substrate and the metal layer is connected to the battery strings, and the resin layer is connected to the adhesive film.

[0016] Compared with the prior art, the present invention adopts a method of arranging a metal layer and a resin layer on opposite sides of a conductive substrate. This arrangement can make the resin layer and the conductive substrate face-to-face contact, thereby omitting the metal layer between the resin layer and the conductive substrate in the prior art, and can also make the connection between the resin layer and the conductive substrate more firmly, thereby facilitating the production of the busbar, saving costs and improving the performance of the busbar.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 1 is a schematic structural diagram of a bus bar according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the first structure of the busbar connected to the battery string;

[0021] Figure 3 This is a schematic diagram of the second structure of the connection between the bus bar and the battery string.

[0022] Reference numerals:

[0023] 10. Busbar; 11. Conductive substrate; 111. First section; 112. Second section; 113. Third section; 12. Metal layer; 121. First metal layer; 122. Second metal layer; 13. Resin layer; 14. First detection area; 15. Second detection area; 16. Detection unit; 20. Glass; 30. Battery string; 40. Adhesive film. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0025] Reference below Figure 1-Figure 3 A bus bar 10 according to an embodiment of the present invention is described. The bus bar 10 is applied to a photovoltaic module.

[0026] like Figure 1 As shown, the busbar 10 according to the present invention includes: a conductive substrate 11, a metal layer 12 and a resin layer 13. The metal layer 12 and the resin layer 13 are respectively arranged on opposite sides of the conductive substrate 11, and the resin layer 13 is connected to the conductive substrate 11 in a surface-to-surface contact manner.

[0027] It can be understood that the conductive substrate 11, the metal layer 12 and the resin layer 13 constitute the main structure of the busbar 10, and the conductive substrate 11 is located in the middle of the metal layer 12 and the resin layer 13. This arrangement allows the metal layer 12 and the resin layer 13 to be located on opposite sides of the conductive substrate 11, and the metal layer 12 and the conductive substrate 11 can be electrically connected. The resin layer 13 can absorb solar energy and convert it into electrical energy and transmit it to the conductive substrate 11, thereby improving the current transmission capacity of the busbar 10. Moreover, the resin layer 13 and the conductive substrate 11 are in surface contact and connection, so that the resin layer 13 and the conductive substrate 11 are in direct contact, and the contact area between the resin layer 13 and the conductive substrate 11 can be increased. This arrangement can omit the metal layer 12 between the resin layer 13 and the conductive substrate 11 in the prior art, and can also make the connection between the resin layer 13 and the conductive substrate 11 more firmly, thereby facilitating the production of the busbar 10, saving costs and improving the performance of the busbar 10.

[0028] Therefore, by arranging the metal layer 12 and the resin layer 13 on opposite sides of the conductive substrate 11, such an arrangement can make the resin layer 13 and the conductive substrate 11 contact each other surface to surface, thereby omitting the metal layer 12 between the resin layer 13 and the conductive substrate 11 in the prior art, and can also make the connection between the resin layer 13 and the conductive substrate 11 more firmly, thereby facilitating the production of the busbar 10, saving costs and improving the performance of the busbar 10.

[0029] Optionally, the resin layer 13 is a black resin layer 13 , the conductive substrate 11 is a copper substrate, and the metal layer 12 is a tin layer. That is to say, the black resin layer 13 is located on one side of the conductive substrate 11. The resin layer 13 can encapsulate the conductive substrate 11. The resin layer 13 can also insulate the conductive substrate 11 from the outside world, so that the resin layer 13 can protect the conductive substrate 11, thereby extending the service life of the conductive substrate 11. Moreover, the resin layer 13 is black, which improves the ability of the resin layer 13 to absorb solar energy, thereby facilitating the resin layer 13 to absorb solar energy and convert it into electrical energy and transmit it to the conductive substrate 11. The conductive substrate 11 can improve the conductivity of the busbar 10, thereby facilitating the busbar 10 to connect to the battery cell. Moreover, the conductive substrate 11 is made of copper. This arrangement can ensure the conductivity of the busbar 10 and can also make the conductive substrate 11 corrosion-resistant, thereby extending the service life of the busbar 10. The metal layer 12 is made of tin. This arrangement can take advantage of the low melting point of tin, thereby facilitating the busbar 10 to connect to the battery cell. Moreover, tin is silvery white, and the detector can detect the metal layer 12, thereby enabling the detector to detect the busbar 10, thereby ensuring the performance of the busbar 10.

[0030] Among them, Figure 1-Figure 3As shown, a first contact area and a first detection area 14 are formed on one side surface of the conductive substrate 11. In the length direction of the conductive substrate 11, the first detection area 14 is located at one end of the first contact area, and the resin layer 13 is arranged in the first contact area and avoids the first detection area 14.

[0031] It can be understood that the resin layer 13 is connected to the conductive substrate 11 in a surface-to-surface contact manner, the resin layer 13 is located on one side of the conductive substrate 11, and a first contact area and a first detection area 14 are set on the surface of the conductive substrate 11. The first contact area and the first detection area 14 are connected in sequence along the length direction of the conductive substrate 11, so that the first contact area can limit the resin layer 13, thereby facilitating the surface contact between the resin layer 13 and the conductive substrate 11, thereby increasing the contact area between the resin layer 13 and the conductive substrate 11, and the resin layer 13 and the first detection area 14 avoid each other. This arrangement allows the detector to contact the first detection area 14, so that the detector can detect the bus bar 10, thereby ensuring the performance of the bus bar 10.

[0032] In addition, if Figure 1-Figure 3 As shown, a second contact area and a second detection area 15 are formed on the other side surface of the conductive substrate 11, the first detection area 14 corresponds to the second detection area 15, and the first detection area 14 corresponds to the second detection area 15. The metal layer 12 is arranged in the second contact area and avoids the second detection area 15.

[0033] That is to say, the metal layer 12 and the conductive substrate 11 are also connected in a face-to-face contact manner. The metal layer 12 is located on the other side of the conductive substrate 11. A second contact area and a second detection area 15 are set on the surface of the conductive substrate 11. The second contact area and the second detection area 15 are connected sequentially along the length direction of the conductive substrate 11, and the first detection area 14 corresponds to the second detection area 15, and the first detection area 14 corresponds to the second detection area 15. In this way, the second contact area can limit the metal layer 12, thereby facilitating the surface contact between the metal layer 12 and the conductive substrate 11, thereby increasing the contact area between the metal layer 12 and the conductive substrate 11, and the metal layer 12 and the second detection area 15 avoid each other. This setting allows the detector to contact the second detection area 15, so that the detector can detect the bus bar 10, thereby ensuring the performance of the bus bar 10.

[0034] In addition, if Figure 2 and Figure 3As shown, the conductive substrate 11 includes: a first section 111, a second section 112 and a third section 113. The first section 111 is suitable for contacting the battery string 30, the second section 112 is connected to the first section 111 and bent relative to the first section 111, and the third section 113 is connected to the second section 112 and bent relative to the second section 112; wherein, one side surface of the first section 111 and the second section 112 forms a first contact area, one side surface of the third section 113 forms a first detection area 14, the other side surfaces of the first section 111 and the second section 112 form a second contact area, and the other side surface of the third section 113 forms a second detection area 15.

[0035] It can be understood that the first section 111, the second section 112 and the third section 113 constitute the main structure of the conductive substrate 11. The first section 111 contacts the battery string 30, so that the bus bar 10 can be connected to the battery string 30, thereby facilitating the bus bar 10 to integrate the electrical energy of the battery string 30. The second section 112 is bent relative to the first section 111, one end of the second section 112 is connected to the first section 111, and the other end of the second section 112 is connected to the third section 113. The third section 113 is bent relative to the second section 112, and the first section 111 and the third section 113 extend in the same direction, so that the first section 111, the second section 112 and the third section 113 can be connected in sequence, thereby ensuring the current flow performance of the conductive substrate 11. The first section 111 and one side of the second section 112 form a first contact area, and one side of the third section 113 forms a first detection area 14. The first contact area and the first detection area 14 are connected in sequence along the length direction of the conductive substrate 11. The first contact area can limit the resin layer 13, thereby facilitating surface contact between the resin layer 13 and the conductive substrate 11, thereby increasing the contact area between the resin layer 13 and the conductive substrate 11, and the resin layer 13 and the first detection area 14 avoid each other. This setting allows the detector to contact the first detection area 14, thereby allowing the detector to detect the busbar 10, thereby ensuring the performance of the busbar 10, and the second contact area and the second detection area 15 are connected in sequence along the length direction of the conductive substrate 11, so that the second contact area can limit the metal layer 12, thereby facilitating surface contact between the metal layer 12 and the conductive substrate 11, thereby increasing the contact area between the metal layer 12 and the conductive substrate 11, and the metal layer 12 and the second detection area 15 avoid each other. This setting allows the detector to contact the second detection area 15, thereby allowing the detector to detect the busbar 10, thereby ensuring the performance of the busbar 10.

[0036] In addition, if Figure 2 As shown, in the length direction of the conductive substrate 11 , a portion of the metal layer 12 protrudes from one end of the conductive base layer, and a portion of the metal layer 12 constitutes the detection portion 16 .

[0037] That is to say, the metal layer 12 is in surface contact with the conductive substrate 11, thereby increasing the contact area between the metal layer 12 and the conductive substrate 11, and a portion of the metal layer 12 is longer than the conductive substrate 11, and this portion can form a detection portion 16. This arrangement allows the detector to contact the detection portion 16, so that the detector can detect the busbar 10, thereby ensuring the performance of the busbar 10.

[0038] In addition, if Figure 3 As shown, the metal layer 12 includes: a first metal layer 121 and a second metal layer 122 . The first metal layer 121 is disposed on the conductive substrate 11 , and the second metal layer 122 is connected to the first metal layer 121 and a portion protruding from one end of the conductive substrate constitutes the detection portion 16 .

[0039] It can be understood that the first metal layer 121 and the second metal layer 122 constitute the main structure of the metal layer 12, the first metal layer 121 and the second metal layer 122 are connected in sequence, the first metal layer 121 is in surface contact with the conductive substrate 11, thereby increasing the contact area between the metal layer 12 and the conductive substrate 11, the second metal layer 122 is connected in sequence with the first metal layer 121, and the second metal layer 122 protrudes from the conductive base layer. This arrangement can enable the second metal layer 122 to form a detection part 16, and the detector is in contact with the detection part 16, so that the detector can detect the busbar 10, thereby ensuring the performance of the busbar 10.

[0040] In addition, if Figure 3 As shown, in the length direction of the conductive substrate 11, the first metal layer 121 is flush with both ends of the conductive substrate 11; the second metal layer 122 includes: a connecting portion and a detecting portion 16, the connecting portion is connected to the surface of the first metal layer 121 facing away from the conductive substrate 11, and the detecting portion 16 is integrally formed with the connecting portion and protrudes from one end of the conductive substrate 11.

[0041] That is to say, the first metal layer 121 and the second metal layer 122 extend along the length direction of the conductive substrate 11, so that the first metal layer 121 and the second metal layer 122 can be in surface contact with the conductive substrate 11, thereby increasing the contact area between the metal layer 12 and the conductive substrate 11, and the first metal layer 121 is flush with the two ends of the conductive substrate 11, thereby ensuring the consistency of the busbar 10, the connecting part and the detection part 16 constitute the main structure of the second metal layer 122, the connecting part is connected to the first metal layer 121, so that the first metal layer 121 and the second metal layer 122 can be connected in sequence, the detection part 16 is connected to the side of the connecting part away from the first metal layer 121, and the detection part 16 protrudes from the conductive base layer, the detector is in contact with the detection part 16, so that the detector can detect the busbar 10, thereby ensuring the performance of the busbar 10.

[0042] In addition, Figure 2 and Figure 3 As shown, the conductive substrate 11 includes: a first section 111, a second section 112 and a third section 113, the first section 111 is suitable for contacting the battery string 30, the second section 112 is connected to the first section 111 and bent relative to the first section 111, and the third section 113 is connected to the second section 112 and bent relative to the second section 112; wherein, the resin layer 13 is arranged on one side surface of the first section 111, the second section 112 and the third section 113, and the first metal layer 121 is arranged on the other side surface of the first section 111, the second section 112 and the third section 113.

[0043] It can be understood that the first section 111, the second section 112 and the third section 113 constitute the main structure of the conductive substrate 11, the first section 111 is in contact with the battery string 30, so that the bus bar 10 can be connected to the battery string 30, thereby facilitating the bus bar 10 to integrate the electrical energy of the battery string 30, the second section 112 is bent relative to the first section 111, one end of the second section 112 is connected to the first section 111, and the other end of the second section 112 is connected to the third section 113, the third section 113 is bent relative to the second section 112, and the first section 111 and the third section 113 extend in the same direction, so that the first section 111, the second section 112 and the third section 113 can be connected in sequence, thereby ensuring the current flow performance of the conductive substrate 11, and the resin layer 13 is located between the first section 111 and the second section 112. 112 and one side of the third segment 113, the first metal layer 121 is located on the other side of the first segment 111, the second segment 112 and the third segment 113, and the resin layer 13 and the first segment 111, the second segment 112 and the third segment 113 are in surface-to-surface contact connection, so that the resin layer 13 can be in direct contact with the first segment 111, the second segment 112 and the third segment 113, and the contact area between the resin layer 13 and the first segment 111, the second segment 112 and the third segment 113 can be increased. This arrangement can omit the metal layer 12 between the resin layer 13 and the first segment 111, the second segment 112 and the third segment 113 in the prior art, and can also make the connection between the resin layer 13 and the conductive substrate 11 more firmly, thereby facilitating the production of the busbar 10, saving costs and improving the performance of the busbar 10.

[0044] The photovoltaic module according to the present invention includes: glass 20, battery string 30, adhesive film 40 and busbar 10 of the above embodiment, the adhesive film 40 is arranged between the battery string 30 and the glass 20, at least one of the conductive substrate 11 and the metal layer 12 is connected to the battery string 30, and the resin layer 13 is connected to the adhesive film 40. That is to say, the adhesive film 40 is located between the battery string 30 and the glass 20, so that the battery string 30 and the glass 20 can be firmly connected through the adhesive film 40, and the conductive substrate 11 and the metal layer 12 are connected to the battery string 30, so that the ability of the battery string 30 to carry current can be improved. The layer is connected to the adhesive film 40, so that the busbar 10 can be connected to the battery string 30 through the adhesive film 40, and the connection between the busbar 10 and the battery string 30 can be made tighter, and the metal layer 12 and the resin layer 13 are respectively provided on the opposite sides of the conductive substrate 11. Such an arrangement can make the resin layer 13 and the conductive substrate 11 face to face contact, so that the metal layer 12 between the resin layer 13 and the conductive substrate 11 in the prior art can be omitted, and the connection between the resin layer 13 and the conductive substrate 11 can be made more firmly, thereby facilitating the production of the busbar 10, saving costs and improving the performance of the busbar 10.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0046] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0047] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A busbar (10), characterized in that: include: a conductive substrate (11); Metal layer (12); The resin layer (13) is provided on opposite sides of the conductive substrate (11), and the metal layer (12) and the resin layer (13) are respectively provided on opposite sides of the conductive substrate (11), and the resin layer (13) is connected to the conductive substrate (11) in a surface-to-surface contact manner.

2. The busbar (10) according to claim 1, characterized in that The resin layer (13) is a black resin layer (13); and / or The conductive substrate (11) is a copper substrate; and / or The metal layer (12) is a tin layer.

3. The busbar (10) according to claim 1, characterized in that A first contact area and a first detection area (14) are formed on one side surface of the conductive substrate (11). In the length direction of the conductive substrate (11), the first detection area (14) is located at one end of the first contact area, and the resin layer (13) is arranged in the first contact area and avoids the first detection area (14).

4. The busbar (10) according to claim 3, characterized in that A second contact area and a second detection area (15) are formed on the other side surface of the conductive substrate (11), the first detection area (14) corresponds to the second detection area (15), and the metal layer (12) is arranged in the second contact area and avoids the second detection area (15).

5. The busbar (10) according to claim 4, characterized in that The conductive substrate (11) comprises: a first section (111), the first section (111) being adapted to contact the battery string (30); a second section (112), the second section (112) being connected to the first section (111) and being bent relative to the first section (111); a third section (113), the third section (113) being connected to the second section (112) and being bent relative to the second section (112); One side surface of the first section (111) and the second section (112) forms the first contact area, one side surface of the third section (113) forms the first detection area (14), the other side surface of the first section (111) and the second section (112) forms the second contact area, and the other side surface of the third section (113) forms the second detection area (15).

6. The busbar (10) according to claim 1, characterized in that In the length direction of the conductive substrate (11), a portion of the metal layer (12) protrudes from one end of the conductive substrate (11), and the portion of the metal layer (12) constitutes a detection portion (16).

7. The busbar (10) according to claim 6, characterized in that The metal layer (12) comprises: a first metal layer (121), the first metal layer (121) being disposed on the conductive substrate (11); A second metal layer (122), wherein the second metal layer (122) is connected to the first metal layer (121) and a portion protruding from one end of the conductive substrate (11) constitutes the detection portion (16).

8. The busbar (10) according to claim 7, characterized in that In the length direction of the conductive substrate (11), the first metal layer (121) is flush with both ends of the conductive substrate (11); The second metal layer (122) comprises: a connecting portion, the connecting portion being connected to a surface of the first metal layer (121) facing away from the conductive substrate (11); A detection portion (16), the detection portion (16) and the connecting portion are integrally formed and protrude from one end of the conductive substrate (11).

9. The busbar (10) according to claim 7, characterized in that The conductive substrate (11) comprises: a first section (111), the first section (111) being adapted to contact the battery string (30); a second section (112), the second section (112) being connected to the first section (111) and being bent relative to the first section (111); a third section (113), the third section (113) being connected to the second section (112) and being bent relative to the second section (112); The resin layer (13) is provided on one side surface of the first section (111), the second section (112) and the third section (113), and the first metal layer (121) is provided on the other side surface of the first section (111), the second section (112) and the third section (113).

10. A photovoltaic module, characterized in that: include: Glass (20); Battery string (30); An adhesive film (40), the adhesive film (40) being disposed between the battery string (30) and the glass (20); According to the busbar (10) according to any one of claims 1 to 9, at least one of the conductive substrate (11) and the metal layer (12) is connected to the battery string (30), and the resin layer (13) is connected to the adhesive film (40).

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