Solar power generation branch and leaf

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and discloses a solar power generation branch and leaf. The solar power generation branch and leaf comprises a power generation blade which comprises a front plate, a back plate and a photovoltaic power generation piece packaged between the front plate and the back plate. The photovoltaic power generation part comprises a battery string, a first bus bar and a second bus bar, the battery string comprises a plurality of battery pieces, the first bus bar, the plurality of battery pieces and the second bus bar are sequentially arranged in the circumferential direction of the power generation blade, the first bus bar is electrically connected with the head-end battery piece, and the second bus bar is electrically connected with the tail-end battery piece; the photovoltaic power generation piece can be matched with the power generation blade in shape, and the number of the battery pieces is increased as much as possible in a specific space; the plurality of battery pieces are arranged along the circumferential direction so as to improve the arrangement uniformity of the battery pieces and simplify the confluence structure; the photovoltaic power generation part is packaged to obtain the power generation blade, and the power generation blade can convert light energy into electric energy, has a power generation function, is combined with landscape ornamental value, and can be applied to outdoor or indoor landscape building and low-carbon life assistance.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a solar power generation branch and leaf. Background Art

[0002] The photovoltaic effect means that when light irradiates the surface of a certain substance, the energy of photons is transferred to electrons in the substance, enabling the electrons to obtain sufficient energy to jump into the conduction band to form an electric current. Photovoltaic power generation is based on the photovoltaic effect and uses solar cells to directly convert solar energy into electrical energy.

[0003] With the gradual application of solar power generation products, corresponding solar power generation products are designed for application scenarios from ground power stations, building facades and rooftops to ponds and lakes. However, the existing solar power generation products mainly focus on power generation and do not have ornamental value. If the solar power generation products are to have ornamental value, they usually need to be designed in a specific form, and the arrangement of solar cells in the photovoltaic module is completed in the specific form. The number of solar cells is small and the arrangement uniformity is poor, and the busbar structure of the solar cells is relatively complex, thus affecting the performance of the solar power generation products.

[0004] Therefore, there is an urgent need to provide a solar power generation branch and leaf, which combines power generation function with landscape ornamental value, tries to increase the number of solar cells arranged under its own form, improves the arrangement uniformity of solar cells, simplifies the busbar structure, ensures the product performance, and can be applied to the creation of outdoor landscapes or indoor bionic landscapes to contribute to a low-carbon life. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a solar power generation branch and leaf, which combines power generation function with landscape ornamental value, tries to increase the number of solar cells arranged under its own form, improves the arrangement uniformity of solar cells, simplifies the busbar structure, ensures the product performance, and can be applied to the creation of outdoor landscapes or indoor bionic landscapes to contribute to a low-carbon life.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] The utility model provides a solar power generation branch and leaf, which includes a power generation blade. The power generation blade includes a front plate, a back plate, and a photovoltaic power generation component encapsulated between the front plate and the back plate;

[0008] Wherein, the photovoltaic power generation component includes a battery string, a first busbar, and a second busbar. The battery string includes a plurality of solar cells. The first busbar, the plurality of solar cells, and the second busbar are arranged in sequence along the circumferential direction of the power generation blade, and the first busbar is electrically connected to the first solar cell at the head end, and the second busbar is electrically connected to the last solar cell at the tail end.

[0009] As an alternative technical solution for a solar power generation leaf, the shape of the battery cell is set as a sector ring.

[0010] As an alternative technical solution for a solar power generation leaf, a plurality of the battery cells are shingled and connected in series to form the battery string.

[0011] As an alternative technical solution for a solar power generation leaf, a gap is formed between the battery cells at both ends, and the first bus bar and the second bus bar are provided in the gap.

[0012] As an alternative technical solution for a solar power generation leaf, the front plate is made of a transparent material, and an upper encapsulation film is provided between the front plate and the photovoltaic power generation component, and the upper encapsulation film is green;

[0013] and / or the back plate is made of a transparent material, and a lower encapsulation film is provided between the back plate and the photovoltaic power generation component, and the lower encapsulation film is green or grayish green.

[0014] As an alternative technical solution for a solar power generation leaf, the power generation blade further includes a sealing rubber ring, which is disposed around the periphery of the photovoltaic power generation component, and the front plate and the back plate are bonded through the sealing rubber ring.

[0015] As an alternative technical solution for a solar power generation leaf, it further includes a branch rod, which is connected to the back plate and supports the power generation blade.

[0016] As an alternative technical solution for a solar power generation leaf, it further includes a cable. The branch rod is provided with a wire routing channel, and the back plate is provided with a jack;

[0017] Wherein, the cable sequentially passes through the wire routing channel and the jack and is electrically connected to the first bus bar and the second bus bar; or the first bus bar and the second bus bar extend out of the jack and are electrically connected to the cable in the wire routing channel.

[0018] As an alternative technical solution for a solar power generation leaf, waterproof glue layers are respectively coated at the connection parts of the cable and the first bus bar and the second bus bar.

[0019] As an alternative technical solution for a solar power generation leaf, a plurality of support bars are circumferentially and spacedly provided at one end of the branch rod connected to the back plate, the support bars extend along the radial direction of the branch rod, and the power generation blade is disposed on the support bars.

[0020] Beneficial effects:

[0021] The present utility model provides a solar - power - generating branch and leaf. The solar - power - generating branch and leaf includes a power - generating blade. The power - generating blade includes a front plate, a back plate, and a photovoltaic power - generating component encapsulated between the front plate and the back plate. Among them, the photovoltaic power - generating component includes a battery string, a first bus bar, and a second bus bar. The battery string includes a plurality of battery cells. The first bus bar, the plurality of battery cells, and the second bus bar are arranged in sequence along the circumferential direction of the power - generating blade. And the first bus bar is electrically connected to the battery cell at the head end, and the second bus bar is electrically connected to the battery cell at the tail end, simplifying the bus - bar structure. By arranging the first bus bar, the plurality of battery cells, and the second bus bar in sequence along the circumferential direction of the power - generating blade and connecting the bus bars to the battery cells at the head end and the tail end, it can not only make the combined photovoltaic power - generating component adapt to the shape of the power - generating blade, but also increase the number of battery cells arranged in a specific space as much as possible. The plurality of battery cells are arranged along the circumferential direction, thereby improving the uniformity of the arrangement of the battery cells. The photovoltaic power - generating component is encapsulated between the front plate and the back plate to obtain a power - generating blade. The power - generating blade can convert light energy into electrical energy, which is economical, energy - saving, green, environmentally friendly, safe and reliable. It combines the function of power generation with landscape ornamental value. It can be applied to both outdoor landscape creation and indoor bionic landscape, contributing to a low - carbon life. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural view of the solar - power - generating branch and leaf provided by an embodiment of the present utility model;

[0023] Figure 2 is a schematic structural view of the branch rod provided by an embodiment of the present utility model;

[0024] Figure 3 is an exploded view of the solar - power - generating branch and leaf provided by an embodiment of the present utility model;

[0025] Figure 4 is a schematic structural view of the battery cell provided by an embodiment of the present utility model;

[0026] Figure 5 is a schematic structural view of the cable provided by an embodiment of the present utility model.

[0027] In the figure:

[0028] 1, power - generating blade; 10, front plate; 20, upper encapsulation film; 30, photovoltaic power - generating component; 31, battery cell; 32, first bus bar; 33, second bus bar; 50, lower encapsulation film; 60, sealing rubber ring; 70, back plate;

[0029] 2, branch rod; 21, support bar;

[0030] 3, cable; 5, waterproof adhesive layer. Detailed Embodiment

[0031] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, 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 should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0035] As Figures 1 to 5 shown, this embodiment provides a solar power generation branch and leaf, which includes a power generation blade 1. The power generation blade 1 includes a front plate 10, a back plate 70, and a photovoltaic power generation component 30 encapsulated between the front plate 10 and the back plate 70. Among them, the photovoltaic power generation component 30 includes a battery string, a first bus bar 32, and a second bus bar 33. The battery string includes a plurality of battery cells 31. The first bus bar 32, the plurality of battery cells 31, and the second bus bar 33 are arranged in sequence along the circumferential direction of the power generation blade 1, and the first bus bar 32 is electrically connected to the battery cell 31 at the head end, and the second bus bar 33 is electrically connected to the battery cell 31 at the tail end.

[0036] By arranging a first bus bar 32, multiple battery cells 31 and a second bus bar 33 in sequence along the circumference of the power generation blade 1, and connecting the bus bars to the battery cells 31 at the head and tail ends, the combined photovoltaic power generation element 30 can be adapted to the shape of the power generation blade 1, and the number of battery cells 31 set in a specific space can be increased as much as possible; multiple battery cells 31 are arranged along the circumference to improve the uniformity of the arrangement of the battery cells 31 and simplify the bus structure; the photovoltaic power generation element 30 is encapsulated between the front plate 10 and the back plate 70 to obtain the power generation blade 1, which can convert light energy into electrical energy, is economical and energy-saving, green and environmentally friendly, safe and reliable, has the power generation function and combines landscape appreciation, can be used for outdoor landscape creation, can also be used for indoor bionic landscape, and contribute to low-carbon life.

[0037] For example, the shape of the power generation blade 1 can be a lotus leaf, such as a round lotus leaf or an elliptical lotus leaf. Of course, the shape of the power generation blade 1 can also be the shape of leaves of other plants, which is not limited in this application.

[0038] Specifically, the power generation blade 1 includes, from top to bottom, a front plate 10, an upper packaging film 20, a photovoltaic power generation element 30, a lower packaging film 50 and a back plate 70; a sealing ring 60 is circumferentially coated on the edge between the front plate 10 and the back plate 70, and the sealing ring 60 surrounds the outer edges of the upper packaging film 20, the photovoltaic power generation element 30 and the lower packaging film 50 and bonds the front plate 10 and the back plate 70 together, thereby encapsulating the photovoltaic power generation element 30 between the front plate 10 and the back plate 70.

[0039] Optionally, the front panel 10 is made of a transparent material, and the upper encapsulating film 20 between the front panel 10 and the photovoltaic element 30 is green. By making the front panel 10 transparent, light can pass through the front panel 10 and illuminate the photovoltaic element 30. By making the upper encapsulating film 20 green, the solar power generation leaves can be similar in color to or the same as the water lily pads.

[0040] Among them, the back plate 70 is made of a transparent material. The lower encapsulation film 50 located between the back plate 70 and the photovoltaic power generation component 30 is colored, and the lower encapsulation film 50 can be green or grayish green. The materials of the upper encapsulation film 20 and the lower encapsulation film 50 can be one of POE (Polyolefin Elastomer), EVB (Expanded and Vitrified Small Ball), and PVB (Polyvinyl Butyral); the thickness ranges of the upper encapsulation film 20 and the lower encapsulation film 50 are both between 0.2 mm and 0.5 mm; the shapes and sizes of the upper encapsulation film 20 and the lower encapsulation film 50 are the same, and the outer edges of the upper encapsulation film 20 and the lower encapsulation film 50 are consistent with the periphery of the photovoltaic power generation component 30, or radially protrude 1 mm to 2 mm beyond the outer periphery edge of the photovoltaic power generation component 30.

[0041] Optionally, the sealant ring 60 is made of green butyl rubber; the thickness of the sealant ring 60 is the sum of the thicknesses of the upper encapsulation film 20, the photovoltaic power generation component 30, and the lower encapsulation film 50; the sealant ring 60 is annular, and the inner edge of the sealant ring 60 is consistent with the edges of the upper encapsulation film 20 and the lower encapsulation film 50, or radially protrudes 1 mm to 2 mm beyond the edges of the upper encapsulation film 20 and the lower encapsulation film 50; the outer edge of the sealant ring 60 is consistent with the outer edge of the front plate 10. By setting the upper encapsulation film 20 and the lower encapsulation film 50 and setting the sealant ring 60 to form a completely sealed circle, it can effectively block the entry of water vapor and prevent the photovoltaic power generation component 30 from being affected by moisture and resulting in performance degradation.

[0042] Optionally, the back plate 70 is a polymer composite material, the middle layer is transparent PET (Polyethylene Terephthalate), the upper layer is a primer, and the lower layer of the back plate 70 is compounded with a hydrophobic weather-resistant film; the front plate 10 is a transparent polymer composite material, the middle layer is transparent PET (Polyethylene Terephthalate), the lower layer is a primer, and the upper layer is compounded with a hydrophobic weather-resistant film. Among them, the hydrophobic weather-resistant film can be made of chlorine-containing materials such as polytetrafluoroethylene, polyvinylidene fluoride, or ethylene-tetrafluoroethylene copolymer; setting the hydrophobic weather-resistant film can enable the front plate 10 and the back plate 70 to have excellent weather resistance, so that the solar power generation foliage can ensure its performance and appearance under different environmental conditions.

[0043] The primer of the transparent polymer composite material is an auxiliary material with very low viscosity, which is used for uniform coating, thereby improving the bonding strength between the back plate 70 and the lower encapsulation film 50, and between the front plate 10 and the upper encapsulation film 20, and ensuring the firmness and durability of the bonding.

[0044] In this embodiment, the front plate 10 and the back plate 70 have the same shape, and the edges of the front plate 10 and the back plate 70 are consistent; the front plate 10 is circular or oval; the thickness range of the front plate 10 is 0.15 mm to 0.3 mm.

[0045] Further, the shape of the solar cell 31 is set as a sector ring; a plurality of solar cells 31 are connected in series by the shingling method to form a battery string. By setting each solar cell 31 as a sector ring, a photovoltaic power generation component 30 that is coordinated with the outer contour of the water lily leaf can be obtained after the combination of the solar cells 31.

[0046] Among them, the sector ring is a sector with a large radius minus a concentric sector with a small radius; the plurality of solar cells 31 are connected by the shingling method, which means that a whole solar cell is cut into a plurality of solar cells 31, and then the edges of the plurality of solar cells 31 are overlapped and assembled by using conductive glue. The shingling technology is a special photovoltaic module manufacturing technology. By overlapping the solar cells, there is no gap between adjacent solar cells, and more solar cells can be arranged in the same area, so as to improve the power generation efficiency and power.

[0047] In this embodiment, the edge contour of the solar cell 31 has an outer arc, an inner arc and two generatrices; the length of the inner arc is set to be more than 6 mm, and the range of the small radius corresponding to the inner arc is 20 mm to 80 mm; the range of the large radius corresponding to the outer arc is 150 mm to 600 mm; the length range of the two generatrices is 100 mm to 580 mm. Here, the generatrix refers to the line segment connecting the corresponding two endpoints of the inner arc and the outer arc. The positive and negative electrodes are respectively arranged on both sides of the solar cell 31 and are near the generatrix edge of the sector-ring-shaped solar cell 31; the negative electrode of one solar cell 31 is connected to the positive electrode of another solar cell 31, and thus connected in series to form a battery string.

[0048] Optionally, the solar cell 31 is a flexible solar cell; the solar cell 31 can be selected from a flexible perovskite battery, a CIGS battery (copper indium gallium selenide battery), a cadmium telluride battery or an amorphous silicon battery. The number of solar cells 31 is set according to different battery specifications, and the number range of the solar cells 31 is between 6 and 25; the voltage within 36 V is satisfied after the solar cells 31 are connected in series. It can be understood that the more the number of the series-connected solar cells 31, the higher the voltage, and a higher voltage output can be obtained, thereby improving the power generation efficiency.

[0049] Optionally, the solar power generation branch also includes a branch rod 2, and the top of the branch rod 2 is connected to the back plate 70 and made into a power generation blade 1. In this embodiment, the axial direction of the branch rod 2 is perpendicular to the plane where the power generation blade 1 is located or intersects with the plane where the power generation blade 1 is located.

[0050] Further, the solar power generation branches and leaves further include a cable 3. A wire routing channel is provided on the branch rod 2, and a jack is provided on the backplane 70. The cable 3 sequentially passes through the wire routing channel and the jack and is electrically connected to the first bus bar 32 and the second bus bar 33; or the first bus bar 32 and the second bus bar 33 extend out of the jack and are electrically connected to the cable 3 in the wire routing channel. A gap is formed between the battery cells 31 at both the head and the tail ends, and the first bus bar 32 and the second bus bar 33 are provided in the gap. By providing bus bars between the cable 3 and the battery string, the current can be effectively collected and transmitted. By providing jacks on the backplane 70, the connection between the cable 3 and the bus bar can be realized, and the normal operation of the photovoltaic power generation component 30 is not affected; by providing a branch rod 2 with a wire routing channel, the cable 3 can be better placed and the connection position of the cable 3 can be hidden, making the solar power generation branches and leaves more beautiful.

[0051] Specifically, two jacks are provided on both the backplane 70 and the lower encapsulation film 50. The cable 3 includes two connecting cables, and both connecting cables sequentially pass through the wire routing channel. The first bus bar 32 and the second bus bar 33 are respectively connected to the battery cells 31 at both the head and the tail ends at the gap. The ends of the first bus bar 32 and the second bus bar 33 separately extend out from the jacks, sequentially pass through the lower encapsulation film 50 and the backplane 70, and are correspondingly connected to one connecting cable.

[0052] In this embodiment, the gap between the battery cell 31 at the head end and the battery cell 31 at the tail end is 1 mm to 2 mm. The bus bar edges of the battery cell 31 at the head end and the battery cell 31 at the tail end are respectively connected to the first bus bar 32 and the second bus bar 33. The first bus bar 32 and the second bus bar 33 are respectively connected to the positive and negative electrodes of the battery string (i.e., respectively connected to the battery cell 31 at the head end and the battery cell 31 at the tail end); the first bus bar 32 and / or the second bus bar 33 can be a tinned copper strip or a nickel-plated copper strip.

[0053] In this embodiment, the jack on the backplane 70 is provided in the middle of the backplane 70, and the position of the jack is at the center of the photovoltaic power generation component 30. One end of the cable 3 penetrates into the branch rod 2, and the other end extends out from the bottom of the branch rod 2 and is connected to a cable connector to connect to an external circuit. The electric energy generated by the photovoltaic power generation component 30 can be output through the cable 3 and the cable connector.

[0054] In this embodiment, both the first bus bar 32 and the second bus bar 33 separately extend out from a jack on the backplane 70 and are welded to the corresponding cable 3. Specifically, the bus bars (the first bus bar 32 and the second bus bar 33) are in an L shape. One end of the bus bar is partially fitted and encapsulated between the photovoltaic power generation component 30 and the lower encapsulation film 50, and the other end is inserted into the jacks of the lower encapsulation film 50 and the backplane 70 and extends to the outside of the power generation blade 1.

[0055] Optionally, waterproof adhesive layers 5 are respectively coated at the connection parts of the cable 3 with the first bus bar 32 and the second bus bar 33. After the bus bar and the cable 3 are welded, the metal conductive parts are sealed and bonded by using the waterproof adhesive layer 5, which can prevent water vapor from invading. In this embodiment, the two connecting cables are respectively coated with the waterproof adhesive layer 5, and the waterproof adhesive layers 5 coated on the two connecting cables are fused together; the fused waterproof adhesive layer 5 is in an integral cylindrical shape; the waterproof adhesive layer 5 is located at the top end of the branch rod 2 and within the wire routing channel, and the inner diameter of the top end of the branch rod 2 is 0 mm to 10 mm larger than the outer diameter of the waterproof adhesive layer 5.

[0056] Optionally, one end of the branch rod 2 connected to the back plate 70 is provided with a plurality of support bars 21 at circumferential intervals. The support bars 21 extend along the radial direction of the branch rod 2, and the power generation blades 1 are arranged on the support bars 21; 3 to 12 support bars 21 are provided. In this embodiment, four support bars 21 are evenly arranged around the circumference of the branch rod 2; the support bars 21 are bonded to the back plate 70 by silicone. Optionally, the branch rod 2 can be made of water-resistant and rust-proof materials, such as aluminum profiles, stainless steel, and high-density polyethylene, etc.; a green paint protection layer is coated on the outer surface of the branch rod 2.

[0057] The solar power generation branches and leaves provided in this embodiment have the characteristics of being light in weight and resembling lotus leaves. They can be used for creating water landscapes such as park lakes, ponds, reservoirs, apartment pools, and fountain pools, and can also be used for indoor bionic potted plant decoration. They can also provide electric energy to contribute to a low-carbon life, realizing an organic combination of ornamental and power generation functions and opening up new application scenarios for photovoltaic products.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Solar power generation branches and leaves, characterized in that, It includes a power generation blade (1), and the power generation blade (1) includes a front plate (10), a back plate (70), and a photovoltaic power generation component (30) encapsulated between the front plate (10) and the back plate (70); Wherein, the photovoltaic power generation component (30) includes a battery string, a first bus bar (32), and a second bus bar (33). The battery string includes a plurality of solar cells (31). The first bus bar (32), the plurality of solar cells (31), and the second bus bar (33) are arranged in sequence along the circumferential direction of the power generation blade (1), and the first bus bar (32) is electrically connected to the solar cell (31) at the head end, and the second bus bar (33) is electrically connected to the solar cell (31) at the tail end.

2. The solar power generation branches and leaves according to claim 1, characterized in that, The shape of the solar cell (31) is set as a fan-shaped ring.

3. The solar power generation branches and leaves according to claim 1, characterized in that The plurality of solar cells (31) are shingled in series to form the battery string.

4. The solar power generation branches and leaves according to claim 1, characterized in that, There is a gap formed between the solar cells (31) at the head and tail ends, and the first bus bar (32) and the second bus bar (33) are arranged in the gap.

5. The solar power generation branches and leaves according to claim 1, characterized in that, The front plate (10) is made of a transparent material, and an upper encapsulation film (20) is provided between the front plate (10) and the photovoltaic power generation component (30), and the upper encapsulation film (20) is green; And / or the back plate (70) is made of a transparent material, and a lower encapsulation film (50) is provided between the back plate (70) and the photovoltaic power generation component (30), and the lower encapsulation film (50) is green or gray-green.

6. The solar power generation branches and leaves according to claim 1, characterized in that, The power generation blade (1) further includes a sealing rubber ring (60), which is arranged around the outer periphery of the photovoltaic power generation component (30), and the front plate (10) and the back plate (70) are bonded through the sealing rubber ring (60).

7. The solar power generation branch and leaf according to claim 1, wherein It further includes a branch rod (2), which is connected to the back plate (70) and supports the power generation blade (1).

8. The solar power generation branch and leaf according to claim 7, characterized in that, It further includes a cable (3). The branch rod (2) is provided with a wire routing channel, and the back plate (70) is provided with a jack; Wherein, the cable (3) sequentially passes through the wire routing channel and the jack and is electrically connected to the first bus bar (32) and the second bus bar (33); or the first bus bar (32) and the second bus bar (33) extend out of the jack and are electrically connected to the cable (3) in the wire routing channel.

9. The solar power generation branches and leaves according to claim 8, characterized in that, The joints of the cable (3) with the first bus bar (32) and the second bus bar (33) are respectively coated with a waterproof glue layer (5).

10. The solar power generation branch and leaf according to claim 7, characterized in that, At one end of the branch rod (2) connected to the back plate (70), a plurality of support bars (21) are arranged at intervals along the circumferential direction. The support bars (21) extend along the radial direction of the branch rod (2), and the power generation blade (1) is arranged on the support bars (21).

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