Solar cell panel and preparation method thereof

Abstract

The invention discloses a solar cell panel and a preparation method thereof. The solar cell panel comprises a circuit board and a cell assembly, the circuit board comprises a substrate and an output assembly, the output assembly and the cell assembly are both connected to the first side face of the substrate, and the output assembly is arranged between the cell assembly and the substrate. According to the solar cell panel, the output assembly and the cell assembly are connected to the first side face of the substrate, and the output assembly is arranged between the cell assembly and the substrate, so that the output assembly and the cell assembly can be installed on the same side face of the substrate, the processing technology is optimized, machining is facilitated, and the passing rate and the production efficiency of products are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cells, and in particular to a solar cell panel and a preparation method thereof. Background Art

[0002] In the related art, a solar panel includes a circuit board, an output copper strip and a cell. The output copper strip is printed on the circuit board, the cell is mounted on the circuit board, and the output copper strip is electrically connected to the cell and outputs the electricity generated by the cell. In existing solar panels, the cell is mounted on the upper surface of the circuit board, the output copper strip is printed on the back of the circuit board opposite to the cell, and a hole is opened on the edge of the circuit board. The connecting wire of the cell needs to be bent and passed through the hole to connect with the output copper strip. The processing technology is cumbersome and needs to be completed manually. Manual operation is inevitable to make mistakes, and the product pass rate cannot be guaranteed, which affects production efficiency. Summary of the invention

[0003] The embodiments of the present invention provide a solar cell panel and a method for manufacturing the same to solve at least one of the above-mentioned technical problems.

[0004] A solar panel according to an embodiment of the present invention comprises a circuit board and a battery assembly, wherein the circuit board comprises a substrate and an output assembly, wherein the output assembly and the battery assembly are both connected to a first side surface of the substrate, and the output assembly is disposed between the battery assembly and the substrate.

[0005] In the above solar cell panel, by connecting the output component and the battery component to the first side of the substrate, the output component is arranged between the battery component and the substrate, so that the output component and the battery component can be installed on the same side of the substrate, optimizing the processing technology, facilitating mechanical processing, and helping to improve the product pass rate and production efficiency.

[0006] In some embodiments, the output assembly includes a first conductive tape and a second conductive tape, both of which are connected to the first side surface, the first conductive tape is connected to one end of the battery assembly, and the second conductive tape is connected to the other end of the battery assembly.

[0007] In some embodiments, the first conductive strip includes a first output end and an output positive terminal, the first output end is electrically connected to the output positive terminal, and the second conductive strip includes a second output end and an output negative terminal, the second output end is electrically connected to the output negative terminal; The battery assembly includes a battery cell and a connecting belt, the battery cell is connected to the connecting belt, one end of the connecting belt is connected to the first output end, and the other end of the connecting belt is connected to the second output end.

[0008] In some embodiments, the output component includes a conductive foil, which connects the output positive terminal and the output negative terminal; the output positive terminal is provided with a first through hole, the output negative terminal is provided with a second through hole, the substrate is provided with a first connection hole and a second connection hole, the first through hole is connected to the first connection hole correspondingly, the second through hole is connected to the second connection hole correspondingly, and the conductive foil covers the first through hole, the second through hole, the first connection hole and the second connection hole.

[0009] In some embodiments, solder paste is disposed in the first through hole, the second through hole, the first connecting hole, and the second connecting hole, and the solder paste is connected to the conductive foil.

[0010] In some embodiments, an adhesive layer is provided at the connection between the conductive foil and the output positive terminal and the output negative terminal.

[0011] In some embodiments, the thickness of the conductive foil is in the range of (0 mm, 0.2 mm].

[0012] In some embodiments, the solar cell panel includes an EVA film, the EVA film covers the output assembly, and the EVA film is disposed between the output assembly and the battery assembly.

[0013] In some embodiments, the solar cell panel includes an adhesive member, one side of which is adhered to the bottom surface of the solar cell, and the other side of which is adhered to the EVA film.

[0014] In some embodiments, the solar panel includes a shielding member, an end of the shielding member is connected to the first side surface, and the shielding member covers the connecting strip.

[0015] A method for preparing a solar cell panel according to an embodiment of the present invention, the solar cell panel comprises a circuit board and a battery assembly, the circuit board comprises a substrate and an output assembly, the output assembly comprises a first conductive tape, a second conductive tape and a conductive foil, the battery assembly comprises a battery cell and a connecting tape, the preparation method comprises: Connecting the battery cells to the connecting strip by serial welding; imprinting the first conductive tape and the second conductive tape on the first side of the substrate; After the first conductive tape and the second conductive tape are printed on the first side surface of the substrate, a first through hole and a first connecting hole are respectively formed on one end of the first conductive tape and the substrate, the first through hole is correspondingly connected to the first connecting hole, and a second through hole and a second connecting hole are respectively formed on one end of the second conductive tape and the substrate, the second through hole is correspondingly connected to the second connecting hole; Filling solder paste into the first through hole, the second through hole, the first connecting hole, and the second connecting hole; Applying a thermally conductive insulating layer on the first side surface, the first conductive tape and the second conductive tape; Connecting the conductive foil to the first conductive tape and the second conductive tape to cover the first through hole, the second through hole, the first connecting hole and the second connecting hole; Laying the EVA film on the thermally conductive insulating layer; Adhere one side of the adhesive member to the bottom surface of the battery sheet, and adhere the other side of the adhesive member to the EVA film; Connecting one end of the connecting tape to the other end of the first conductive tape, and connecting the other end of the connecting tape to the other end of the second conductive tape; The end of the shielding member is connected to the heat-conducting insulating layer, and the shielding member covers the connecting belt.

[0016] In the above preparation method, by connecting the output component and the battery component to the first side of the substrate, the output component is arranged between the battery component and the substrate, so that the output component and the battery component can be installed on the same side of the substrate, the processing technology is optimized, mechanical processing is facilitated, and it is beneficial to improve the product pass rate and production efficiency.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a schematic structural diagram of a solar cell panel according to an embodiment of the present invention; Figure 2 is a schematic diagram of an exploded structure of a solar cell panel according to an embodiment of the present invention; Figure 3 yes Figure 1 Section view along the middle section line AA; Figure 4 yes Figure 3 A magnified view of part B; Figure 5 yes Figure 3 Enlarged view of part C; Figure 6 is a partial structural schematic diagram of a solar cell panel according to an embodiment of the present invention; Figure 7 4 is a flow chart of a method for preparing a solar cell panel according to an embodiment of the present invention.

[0019] Reference numerals: 100, solar panel; 10, circuit board; 12, battery assembly; 14, substrate; 16, output assembly; 18, first side; 20, first conductive tape; 22, second conductive tape; 24, first output terminal; 26, output positive terminal; 28, second output terminal; 30, output negative terminal; 32, battery tape; 34, battery cell; 36, connecting tape; 38, thermal insulation layer; 40, conductive foil; 42, first through hole; 44, second through hole; 46, first connecting hole; 48, second connecting hole; 50, solder paste; 52, adhesive layer; 54, EVA film; 56, adhesive member; 58, shielding member. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may appreciate the application of other processes and / or the use of other materials.

[0025] Please refer to Figure 1 and Figure 2 A solar cell panel 100 according to an embodiment of the present invention includes a circuit board 10 and a battery assembly 12. The circuit board 10 includes a substrate 14 and an output assembly 16. The output assembly 16 and the battery assembly 12 are both connected to a first side surface 18 of the substrate 14. The output assembly 16 is arranged between the battery assembly 12 and the substrate 14.

[0026] In the above-mentioned solar cell panel 100, by connecting the output component 16 and the battery component 12 to the first side surface 18 of the substrate 14, the output component 16 is arranged between the battery component 12 and the substrate 14, so that the output component 16 and the battery component 12 can be installed on the same side surface of the substrate 14, optimizing the processing technology, facilitating mechanical processing, and helping to improve the product pass rate and production efficiency.

[0027] Specifically, the solar panel 100 is a device that converts solar energy into electrical energy. Figure 2 In the embodiment, the substrate 14 may be rectangular, the substrate 14 has a first side surface 18, the output component 16 may be mounted on the first side surface 18, and the battery component 12 may be mounted on the first side surface 18. In one embodiment, the output component 16 is first mounted on the first side surface 18, and then the battery component 12 is mounted on the first side surface 18, so that the output component 16 is arranged between the battery component 12 and the substrate 14, so that the output component 16 and the battery component 12 can be mounted on the same side surface of the substrate 14, the processing technology is optimized, the mechanical processing is convenient, and it is beneficial to improve the product pass rate and production efficiency.

[0028] It should be noted that the installation of the output assembly 16 and the battery assembly 12 can be handled by mechanical automation equipment.

[0029] Please combine Figure 2 In some embodiments, the output component 16 includes a first conductive tape 20 and a second conductive tape 22, both of which are connected to the first side 18, the first conductive tape 20 is connected to one end of the battery component 12, and the second conductive tape 22 is connected to the other end of the battery component 12.

[0030] In this way, the electric energy of the battery assembly 12 can be output through the first conductive tape 20 and the second conductive tape 22 .

[0031] Specifically, in Figure 2 In the embodiment, the first conductive tape 20 may be in a T shape, and the second conductive tape 22 may be in a T shape. Both the first conductive tape 20 and the second conductive tape 22 may include copper tapes. The output component 16 is provided with two first conductive tapes 20 and two second conductive tapes 22. Both the first conductive tape 20 and the second conductive tape 22 may be provided with three ends, and the first conductive tape 20 and the second conductive tape 22 may be adjacently arranged at one end close to the middle of the substrate 14. In one embodiment, the first conductive tape 20 and the second conductive tape 22 may be installed on the substrate 14 by a stamping process, and then the battery assembly 12 may be stacked on the first conductive tape 20 and the second conductive tape 22, and then the first conductive tape 20 is connected to one end of the battery assembly 12, and the second conductive tape 22 is connected to the other end of the battery assembly 12, so that the first conductive tape 20 and the second conductive tape 22 may output the electrical energy of the battery assembly 12.

[0032] Please combine Figure 2 and Figure 6In some embodiments, the first conductive tape 20 includes a first output terminal 24 and an output positive terminal 26, the first output terminal 24 is electrically connected to the output positive terminal 26, the second conductive tape 22 includes a second output terminal 28 and an output negative terminal 30, the second output terminal 28 is electrically connected to the output negative terminal 30. The battery assembly 12 includes a battery cell 34 and a connecting tape 36, the battery cell 34 is connected to the connecting tape 36, one end of the connecting tape 36 is connected to the first output terminal 24, and the other end of the connecting tape 36 is connected to the second output terminal 28.

[0033] In this way, the electric energy generated by the battery cell 34 can be further outputted through the output positive terminal 26 and the output negative terminal 30 .

[0034] Specifically, in Figure 2 In the embodiment, the first conductive strip 20 is provided with two first output terminals 24, and the two first output terminals 24 are provided near the edge of the substrate 14. The second conductive strip 22 is provided with two second output terminals 28, and the two second output terminals 28 are provided near the edge of the substrate 14. The output positive terminal 26 and the output negative terminal 30 are adjacently provided on the substrate 14.

[0035] The battery assembly 12 includes a plurality of battery straps 32, each of which includes a connecting strap 36 and a plurality of battery cells 34. The plurality of battery cells 34 can be welded to a connecting strap 36 by a stringing machine. Figure 2 In the embodiment, the solar panel 100 is provided with four battery strips 32. One battery strip 32 is connected to a first output terminal 24 through one end of a connecting strip 36, and the other end of the connecting strip 36 is connected to a second output terminal 28. The first output terminal 24 is electrically connected to the output positive terminal 26, and the second output terminal 28 is electrically connected to the output negative terminal 30, so that the electric energy generated by one battery strip 32 can be output through the output positive terminal 26 and the output negative terminal 30. The connecting strip 36 includes a copper strip.

[0036] In addition, in other embodiments, the first conductive strip 20 may be provided with not only two first output terminals 24, but also three, four, or other numbers of first output terminals 24. The second conductive strip 22 may also be provided with not only two second output terminals 28, but also three, four, or other numbers of second output terminals 28. The numbers of the first output terminals 24 and the second output terminals 28 are the same.

[0037] It should be noted that, combined with Figures 2 to 5The solar panel 100 includes a thermally conductive insulating layer 38, which is coated on the first side surface 18, the first conductive tape 20 and the second conductive tape 22, and the first output terminal 24, the second output terminal 28, the output positive terminal 26 and the output negative terminal 30 are exposed and not coated. The thermally conductive insulating layer 38 can protect the first conductive tape 20 and the second conductive tape 22 from mechanical damage and chemical corrosion, prevent the first conductive tape 20 and the second conductive tape 22 from contacting water vapor and getting wet, and effectively reduce the temperature of the circuit board 10, prevent overheating from causing damage to the circuit board 10, and thus extend the service life of the circuit board 10. Please combine Figures 2 to 5 In some embodiments, the output component 16 includes a conductive foil 40, which is connected to the output positive terminal 26 and the output negative terminal 30; the output positive terminal 26 is provided with a first through hole 42, the output negative terminal 30 is provided with a second through hole 44, the substrate 14 is provided with a first connection hole 46 and a second connection hole 48, the first through hole 42 is connected to the first connection hole 46 correspondingly, the second through hole 44 is connected to the second connection hole 48 correspondingly, and the conductive foil 40 covers the first through hole 42, the second through hole 44, the first connection hole 46 and the second connection hole 48.

[0038] In this way, the first conductive tape 20 and the second conductive tape 22 can be connected to other wiring devices located on the back side of the substrate 14 .

[0039] Specifically, the conductive foil 40 includes a copper foil, and the conductive foil 40 can be connected to the thermally conductive insulating layer 38. Figure 4 and Figure 5 , the first through hole 42 is located above the first connection hole 46, and the second through hole 44 is located above the second connection hole 48. In one embodiment, the conductive foil 40 is connected to the output positive terminal 26 and the output negative terminal 30, the first through hole 42 is connected to the first connection hole 46, and the second through hole 44 is connected to the second connection hole 48, so that the first conductive belt 20 and the second conductive belt 22 can be connected to other wiring devices located on the back of the substrate 14.

[0040] Please combine Figure 4 and Figure 5 In some embodiments, solder paste 50 is disposed in the first through hole 42 , the second through hole 44 , the first connecting hole 46 , and the second connecting hole 48 , and the solder paste 50 is connected to the conductive foil 40 .

[0041] In this way, the solder paste 50 can be filled to facilitate electrical connection between the wiring device on the back side of the substrate 14 and the conductive foil 40 .

[0042] Specifically, in one embodiment, solder paste 50 can be filled into the first through hole 42, the second through hole 44, the first connecting hole 46 and the second connecting hole 48 by a tin brushing device, so that the solder paste 50 connects the conductive foil 40, thereby facilitating electrical connection between the wiring device on the back of the substrate 14 and the conductive foil 40.

[0043] Please combine Figure 2 , Figure 4 and Figure 5 In some embodiments, an adhesive layer 52 is provided at the connection between the conductive foil 40 and the output positive terminal 26 and the output negative terminal 30 .

[0044] In this way, the conductive foil 40 can be fixed on the output positive terminal 26 and the output negative terminal 30 .

[0045] Specifically, the adhesive layer 52 can be a conductive adhesive material, mainly including conductive glue and conductive tape. The adhesive layer 52 can be arranged between the conductive foil 40 and the output positive terminal 26, and between the conductive foil 40 and the output negative terminal 30. The adhesive layer 52 includes glue or other adhesive materials. In one embodiment, the connection between the conductive foil 40 and the output positive terminal 26 and the output negative terminal 30 is provided with an adhesive layer 52, and the conductive foil 40 can be fixed on the output positive terminal 26 and the output negative terminal 30.

[0046] In some embodiments, the thickness of the conductive foil 40 is in the range of (0 mm, 0.2 mm).

[0047] In this way, the space occupied by the conductive foil 40 in the thickness direction is reduced without affecting the conductive performance.

[0048] Specifically, in Figure 5 In the figure, the thickness of the conductive foil 40 can be represented by D, where 0 mm < D ≤ 0.2 mm.

[0049] The thickness D of the conductive foil 40 may be 0.1 mm, 0.2 mm, or other values ​​between 0 mm and 0.2 mm.

[0050] Please combine Figures 2 to 5 In some embodiments, the solar panel 100 includes an EVA film 54 , which covers the output component 16 , and the EVA film 54 is disposed between the output component 16 and the battery component 12 .

[0051] In this way, the output assembly 16 and the battery assembly 12 can be protected.

[0052] Specifically, the EVA (polyethylene-vinyl acetate copolymer) film is a thermosetting adhesive film with adhesiveness, durability, etc. In one embodiment, the EVA film 54 is attached to the first side surface 18 so that the EVA film 54 covers the output assembly 16 and the battery assembly 12 is stacked on the EVA film 54, thereby protecting the output assembly 16 and the battery assembly 12.

[0053] Please combine Figures 2 to 5 In some embodiments, the solar panel 100 includes an adhesive member 56 , one side of the adhesive member 56 is adhered to the bottom surface of the battery cell 34 , and the other side of the adhesive member 56 is adhered to the EVA film 54 .

[0054] In this way, the battery cell 34 can be fixed on the EVA film 54 to further reinforce the battery cell 34 and prevent the battery cell 34 from moving.

[0055] Specifically, in Figure 2 In the embodiment, the adhesive member 56 includes a double-sided adhesive, and a plurality of adhesive members 56 may be provided. In one embodiment, by attaching one side of the adhesive member 56 to the bottom surface of the battery cell 34 and attaching the other side of the adhesive member 56 to the EVA adhesive film 54, the battery cell 34 may be fixed to the EVA adhesive film 54, thereby further reinforcing the battery cell 34 and preventing the battery cell 34 from moving.

[0056] Please combine Figure 1 and Figure 2 In some embodiments, the solar panel 100 includes a shielding member 58 , an end of the shielding member 58 is connected to the first side surface 18 , and the shielding member 58 covers the connecting strip 36 .

[0057] In this way, the connecting strap 36 can be protected from damage.

[0058] Specifically, the shielding member 58 includes a black tape. In one embodiment, both ends of the shielding member 58 can be bonded to the thermally conductive insulating layer 38, and the shielding member 58 can cover the connecting strip 36 to protect the connecting strip 36 from damage.

[0059] Please refer to Figures 1 to 7 A method for preparing a solar cell panel according to an embodiment of the present invention, wherein the solar cell panel comprises a circuit board and a battery assembly, the circuit board comprises a substrate and an output assembly, the output assembly comprises a first conductive tape, a second conductive tape and a conductive foil, the battery assembly comprises a battery cell and a connecting tape, and the preparation method comprises: S01: Connect the battery cells to the connecting belt by welding; S02: printing a first conductive tape and a second conductive tape on a first side of the substrate; S03: After the first conductive tape and the second conductive tape are printed on the first side surface of the substrate, a first through hole and a first connecting hole are respectively formed on one end of the first conductive tape and the substrate, the first through hole is correspondingly connected to the first connecting hole, and a second through hole and a second connecting hole are respectively formed on one end of the second conductive tape and the substrate, the second through hole is correspondingly connected to the second connecting hole; S04: filling solder paste into the first through hole, the second through hole, the first connecting hole, and the second connecting hole; S05: applying a thermally conductive insulating layer on the first side surface, the first conductive tape, and the second conductive tape; S06: Connecting the conductive foil to the first conductive tape and the second conductive tape to cover the first through hole, the second through hole, the first connecting hole, and the second connecting hole; S07: stacking the EVA film on the thermally conductive insulating layer; S08: sticking one side of the adhesive member to the bottom surface of the battery cell, and sticking the other side of the adhesive member to the EVA film; S09: connecting one end of the connecting tape to the other end of the first conductive tape, and connecting the other end of the connecting tape to the other end of the second conductive tape; S10: Connecting the end of the shielding member to the heat-conductive insulating layer, and covering the shielding member with a connecting belt.

[0060] In the above preparation method, by connecting the output component and the battery component to the first side of the substrate, the output component is arranged between the battery component and the substrate, so that the output component and the battery component can be installed on the same side of the substrate, the processing technology is optimized, mechanical processing is facilitated, and it is beneficial to improve the product pass rate and production efficiency.

[0061] Specifically, other detailed descriptions can be found above.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A solar cell panel, characterized in that: It comprises a circuit board and a battery assembly. The circuit board comprises a substrate and an output assembly. Both the output assembly and the battery assembly are connected to a first side surface of the substrate. The output assembly is arranged between the battery assembly and the substrate.

2. The solar cell panel according to claim 1, characterized in that: The output assembly includes a first conductive belt and a second conductive belt, wherein the first conductive belt and the second conductive belt are both connected to the first side surface, the first conductive belt is connected to one end of the battery assembly, and the second conductive belt is connected to the other end of the battery assembly.

3. The solar cell panel according to claim 2, characterized in that: The first conductive strip includes a first output end and an output positive end, the first output end is electrically connected to the output positive end, the second conductive strip includes a second output end and an output negative end, the second output end is electrically connected to the output negative end; The battery assembly includes a battery cell and a connecting belt, the battery cell is connected to the connecting belt, one end of the connecting belt is connected to the first output end, and the other end of the connecting belt is connected to the second output end.

4. The solar cell panel according to claim 3, characterized in that: The output component includes a conductive foil, which connects the output positive terminal and the output negative terminal; the output positive terminal is provided with a first through hole, the output negative terminal is provided with a second through hole, the substrate is provided with a first connection hole and a second connection hole, the first through hole is connected to the first connection hole correspondingly, the second through hole is connected to the second connection hole correspondingly, and the conductive foil covers the first through hole, the second through hole, the first connection hole and the second connection hole.

5. The solar cell panel according to claim 4, characterized in that: Solder paste is disposed in the first through hole, the second through hole, the first connecting hole, and the second connecting hole, and the solder paste is connected to the conductive foil.

6. The solar cell panel according to claim 4, characterized in that: The connection between the conductive foil and the output positive terminal and the output negative terminal is provided with an adhesive layer.

7. The solar cell panel according to claim 2, characterized in that: The solar cell panel comprises an EVA film, the EVA film covers the output component, and the EVA film is arranged between the output component and the battery component.

8. The solar cell panel according to claim 7, characterized in that: The solar cell panel comprises an adhesive member, one side of which is adhered to the bottom surface of the cell sheet, and the other side of which is adhered to the EVA film.

9. The solar cell panel according to claim 2, characterized in that: The solar cell panel comprises a shielding member, an end of which is connected to the first side surface, and the shielding member covers the connecting belt.

10. A method for preparing a solar cell panel, characterized in that: The solar panel comprises a circuit board and a battery assembly, the circuit board comprises a substrate and an output assembly, the output assembly comprises a first conductive tape, a second conductive tape and a conductive foil, the battery assembly comprises a battery cell and a connecting tape, and the preparation method comprises: Connecting the battery cells to the connecting strip by serial welding; imprinting the first conductive tape and the second conductive tape on the first side of the substrate; After the first conductive tape and the second conductive tape are printed on the first side surface of the substrate, a first through hole and a first connecting hole are respectively formed on one end of the first conductive tape and the substrate, the first through hole is correspondingly connected to the first connecting hole, and a second through hole and a second connecting hole are respectively formed on one end of the second conductive tape and the substrate, the second through hole is correspondingly connected to the second connecting hole; Filling solder paste into the first through hole, the second through hole, the first connecting hole, and the second connecting hole; Applying a thermally conductive insulating layer on the first side surface, the first conductive tape and the second conductive tape; Connecting the conductive foil to the first conductive tape and the second conductive tape to cover the first through hole, the second through hole, the first connecting hole and the second connecting hole; Laying the EVA film on the thermally conductive insulating layer; Adhere one side of the adhesive member to the bottom surface of the battery sheet, and adhere the other side of the adhesive member to the EVA film; Connecting one end of the connecting tape to the other end of the first conductive tape, and connecting the other end of the connecting tape to the other end of the second conductive tape; The end of the shielding member is connected to the heat-conducting insulating layer, and the shielding member covers the connecting belt.

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