Floating type photovoltaic module

Abstract

The utility model discloses a floating type photovoltaic assembly, which is applied to the field of photovoltaic power generation and comprises a light-transmitting sealing air bag, a back plate arranged in the light-transmitting sealing air bag and a battery pack arranged on the surface of the back plate. The light-transmitting sealing air bag is internally provided with an inflation inlet used for being filled with inert protective gas. And the battery pack is an assembly formed by converging and conducting a plurality of battery pieces. According to the utility model, the back plate of which the surface is connected with the battery pack is arranged in the light-transmitting sealed air bag, and the inert protective gas is introduced into the light-transmitting sealed air bag through the inflation port in the light-transmitting sealed air bag, so that the battery piece is packaged without additionally arranging a glue film and a glass plate; according to the floating type photovoltaic module, the light receiving loss of the battery piece caused by packaging of an existing photovoltaic module is reduced, the weight of the module is reduced, the light-transmitting sealing air bag is in direct contact with the water surface, a floating body supporting module does not need to be additionally arranged, the structure is simple, and the heat dissipation efficiency of the floating type photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic power generation, and particularly relates to a floating photovoltaic module. Background Art

[0002] Solar photovoltaic modules are the core part of a solar power generation system. In existing photovoltaic modules, solar cells are the main modules for realizing photoelectric conversion. However, due to the relatively harsh working environment of the photovoltaic module, in order to ensure the long service life of the solar cells outdoors, glass, encapsulant film, and backsheet are usually used for encapsulation and protection. Currently, the floating photovoltaic modules mainly refer to the establishment of a photovoltaic power station system on the water surface of ponds, lakes, reservoirs, and water storage ponds, etc. The traditional floating photovoltaic modules on water are supported by floating bodies on the water surface and then fixed through an anchoring system.

[0003] Currently, conventional floating photovoltaic modules need to be encapsulated through glass and encapsulant film, which will cause certain optical losses during the encapsulation process, resulting in a decrease in the utilization rate of sunlight by the photovoltaic module. Moreover, the conventional floating photovoltaic modules on water are set by transferring conventional photovoltaic modules to floating bodies, and the construction process is relatively complex, involving many accessories, and is likely to have an impact on the water ecological environment. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a floating photovoltaic module, which solves the problems that in the prior art, the floating photovoltaic module needs to be encapsulated through glass and encapsulant film, which will cause certain optical losses during the encapsulation process, and the conventional floating photovoltaic modules on water are set by transferring conventional photovoltaic modules to floating bodies, and the construction process is relatively complex.

[0005] To solve the above technical problems, the utility model provides a floating photovoltaic module, including:

[0006] A light-transmitting sealed airbag, a backsheet arranged in the light-transmitting sealed airbag, and a battery pack arranged on the surface of the backsheet;

[0007] An inflation port for filling an inert protective gas is arranged in the light-transmitting sealed airbag;

[0008] The battery pack is a component formed by connecting a plurality of solar cells through busbars.

[0009] Optionally, the battery pack includes a plurality of battery strings, and there is a gap between adjacent batteries; each battery string includes a plurality of the solar cells connected in series in sequence, and each solar cell is connected to the backsheet.

[0010] Optionally, the light-transmitting sealed airbag is an airbag with an anti-ultraviolet additive added to the light contact surface, or

[0011] The light contact surface of the light-transmitting sealed airbag is coated with an anti-ultraviolet coating.

[0012] Optionally, the light-transmitting sealed airbag is a light-transmitting sealed polypropylene airbag.

[0013] Optionally, the back plate is a white back plate.

[0014] Optionally, each solar cell is connected to the back plate through an adhesive.

[0015] Optionally, each solar cell is laid flat and connected to the surface of the back plate facing the incident light; and / or, there is a light-transmitting gap between every two adjacent solar cells.

[0016] Optionally, the back plate is a transparent back plate.

[0017] Optionally, an air outlet for discharging gas is provided in the light-transmitting sealed airbag.

[0018] Optionally, the back plate is fixedly connected to the light-transmitting sealed airbag.

[0019] It can be seen that the floating photovoltaic module provided by the present invention includes a light-transmitting sealed airbag, a back plate disposed inside the light-transmitting sealed airbag, and a battery pack disposed on the surface of the back plate. An inflation port for filling an inert protective gas is provided in the light-transmitting sealed airbag. The battery pack is a component formed by connecting a plurality of solar cells through busbar connection. By disposing the back plate with the battery pack connected to its surface inside the light-transmitting sealed airbag and introducing an inert protective gas into the inside through the inflation port in the light-transmitting sealed airbag, the encapsulation of the solar cells is completed. There is no need to additionally provide a glue film and a glass plate for encapsulating the solar cells, reducing the light-receiving loss of the solar cells caused by the encapsulation of the existing photovoltaic module, and at the same time reducing the weight of the module. The light-transmitting sealed airbag is directly in contact with the water surface, and there is no need to additionally provide a floating body support assembly, with a simple structure and improved heat dissipation efficiency of the floating photovoltaic module. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of a floating photovoltaic module provided by an embodiment of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a floating photovoltaic module during actual operation provided by an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the connection structure between the battery chip and the backplane in a floating photovoltaic module provided by an embodiment of the present utility model;

[0024] Figure 4 Schematic diagram of a structure in which a light-transmitting gap exists between adjacent battery chips in a floating photovoltaic module provided by an embodiment of the present utility model;

[0025] Figures 1 to 4 In the figure, the reference numerals are explained as follows:

[0026] 10 - Light-transmitting sealed airbag, 11 - Inflation port, 20 - Backplane, 30 - Battery chip, 31 - Light-transmitting gap, 40 - Lead wire, 50 - Inert protective gas, 60 - Liquid. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1:

[0029] Please refer to Figure 1 , Figure 1 Schematic diagram of a floating photovoltaic module provided by an embodiment of the present utility model. The floating photovoltaic module may include:

[0030] A light-transmitting sealed airbag 10, a backplane 20 disposed within the light-transmitting sealed airbag 10, and a battery pack disposed on the surface of the backplane 20;

[0031] An inflation port 11 for filling an inert protective gas 50 is provided in the light-transmitting sealed airbag 10;

[0032] The battery pack is a component formed by connecting a plurality of battery chips 30 through bus bar connections.

[0033] It should be noted that in this embodiment, a light-transmitting sealed airbag 10 is provided, and the battery pack connected to the surface of the backplane 20 is integrally arranged inside the light-transmitting sealed airbag 10. When actually arranged, an inert protective gas 50 is filled into the light-transmitting sealed airbag 10 to use the inert protective gas 50 to replace the encapsulation glue film in a conventional photovoltaic module to isolate and protect the battery pack in the light-transmitting sealed airbag 10 and prevent the battery pack from being interfered by external environments such as water vapor. The battery pack is arranged inside the light-transmitting protective airbag. Since it is necessary to introduce the inert protective gas 50 into the light-transmitting sealed airbag 10 to isolate and protect the battery cells 30, when the light-transmitting sealed airbag 10 is placed on the surface of a liquid 60, generally the water surface, it can float on the water surface under the buoyancy force without the need to additionally arrange other floating bodies, and naturally there is no need to consider the problem of the additionally arranged floating body being eroded and aged by the environment, which improves the structural simplicity of the floating photovoltaic module while ensuring the stability of the floating photovoltaic module. To ensure the photoelectric conversion efficiency of the floating photovoltaic module, the above airbag can be set as a transparent sealed airbag. In this embodiment, a lead wire 40 for aggregating and leading out the current generated by the battery cells is included, and multiple floating photovoltaic modules can also be conductively connected to each other.

[0034] In addition, it should be further noted that in this embodiment, an air inlet 11 for filling the inert protective gas 50 needs to be provided in the light-transmitting sealed airbag 10 to fill the inert protective gas 50 into the light-transmitting sealed airbag 10 through the air inlet 11 when the floating photovoltaic module is actually working. The specific structure of the air inlet 11 is not limited in this embodiment, as long as the air inlet 11 can be opened when it is necessary to fill the inert protective gas 50 into the light-transmitting sealed airbag 10 and be sealed when the inflation is completed. The specific material of the light-transmitting sealed airbag 10 is not limited in this embodiment, as long as it can ensure that the light beam can irradiate the surface of the battery cells 30 and ensure the photoelectric conversion efficiency. Correspondingly, the specific material and surface shape of the backplane 20 in this embodiment can also be set according to the actual working conditions. It should be further noted that since it is necessary to ensure that the floating photovoltaic module floats on the liquid surface, the density of the above backplane 20 needs to ensure that the overall floating photovoltaic module can float on the liquid surface, and the battery cells 30 in the battery pack can be arranged corresponding to the specific structure of the surface of the backplane 20. A junction box is also provided in this embodiment for collecting the current led out by the battery cells 30, and the junction box can be arranged outside the overall floating photovoltaic module to ensure the overall weight of the floating photovoltaic module and thus reduce the volume of the floating photovoltaic module.

[0035] The structure of the floating photovoltaic module during actual operation in this embodiment can refer to Figure 2 , Figure 2The figure is a schematic structural diagram of a floating photovoltaic module during actual operation provided by an embodiment of the present utility model. An inert protective gas 50 is filled in the light-transmitting sealed airbag 10, and a part of the overall floating photovoltaic module is in a liquid 60, but the whole floats on the surface of the liquid 60.

[0036] Further, in a feasible embodiment, the above battery pack may include a plurality of battery strings, and there are gaps formed between adjacent batteries; each battery string includes a plurality of the above battery cells connected in series in sequence, and each of the battery cells is connected to the backplane.

[0037] In this embodiment, each battery cell 30 in the battery pack is connected to the backplane 20. For details, reference can be made to Figure 3 , Figure 3 The figure is a schematic structural diagram of the connection between a battery cell and a backplane in a floating photovoltaic module provided by an embodiment of the present utility model. The specific manner of arranging the battery cell 30 on the surface of the backplane 20 is not limited in this embodiment, as long as the battery cell 30 is firmly connected to the surface of the backplane 20. For example, grooves for fixing the corresponding battery cell 30 may be provided in the backplane 20 to arrange the battery cell 30 in the corresponding grooves, or other methods, or a combination of multiple fixing methods may also be used to connect the battery cell 30 and the backplane 20.

[0038] Further, in order to improve the light-transmitting performance and sealing performance of the light-transmitting sealed airbag 10, the above light-transmitting sealed airbag 10 may be set as a light-transmitting sealed polypropylene airbag.

[0039] It should be noted that polypropylene is a polymer formed by addition polymerization reaction, with a transparent and light appearance, good chemical stability, excellent heat resistance and mechanical properties. The density of polypropylene is relatively low, generally in the range of 0.89 - 0.91 g / cm³, making the manufactured light-transmitting sealed airbag 10 light in weight, suitable for preparing the sealed packaging airbag of the floating photovoltaic module. Compared with traditional glass, the light-transmitting sealed polypropylene airbag has stronger impact resistance, is not easy to break, extends the service life of the material, and at the same time has good chemical stability and is not easily corroded; in terms of light transmittance, the polypropylene material can reduce light scattering and ensure the light transmission effect. In order to improve the light transmittance, a transparent nucleating agent can be added to the polypropylene material or a special production process can be adopted to improve the light transmittance of polypropylene; in terms of airtightness, the light-transmitting sealed polypropylene airbag can effectively seal the gas, prevent leakage, maintain the internal pressure stability, and has excellent waterproof performance. Compared with the conventional floating photovoltaic module, although an encapsulation film is provided between layers, there are still inevitable gaps between the laminated structures. In this embodiment, the application of the light-transmitting sealed polypropylene airbag can effectively prevent the liquid 60 from invading and damaging the battery cell 30.

[0040] Further, in order to ensure the overall photoelectric conversion efficiency of the floating photovoltaic module, the above backplane 20 may be set as a white backplane 20.

[0041] In this embodiment, the white backplane 20 is a highly reflective white backplane 20. By setting the backplane 20 as a highly reflective white backplane 20, since the white backplane 20 has an obvious light reflection effect, the light passing through the solar cell 30 and irradiating onto the surface of the backplane 20 can be reflected by the white backplane 20 and re-irradiated onto the surface of the solar cell 30, thereby improving the photoelectric conversion efficiency. In this embodiment, the white highly reflective backplane 20 can be set as a white glazed backplane 20, and specifically, a white glaze can be applied to the surface of the backplane 20 facing the solar cell 30 to improve the photoelectric conversion efficiency of the floating photovoltaic module.

[0042] Furthermore, in order to ensure the stable connection between the solar cell 30 and the backplane 20 while improving the simplicity of arranging the solar cell 30, it can be set that each of the above-mentioned solar cells 30 is connected to the backplane 20 through an adhesive.

[0043] In this embodiment, by setting the adhesive to connect the solar cell 30 and the backplane 20, the convenience of the connection is ensured, and at the same time, the solar cell 30 is fixed at a specified position on the backplane 20, improving the stability of the floating photovoltaic module.

[0044] Furthermore, in order to ensure the photoelectric conversion efficiency of each solar cell 30, and at the same time avoid occlusion between adjacent solar cells 30, avoid stress generated by contact between adjacent solar cells 30, and reduce the impact on the external environment, it can be set that each of the above-mentioned solar cells 30 is tiled and connected to the surface of the backplane 20 facing the incident light; and / or,

[0045] There is a light-transmitting gap 31 between every two adjacent solar cells 30.

[0046] It should be noted that in this embodiment, each solar cell 30 is tiled and connected to the surface of the backplane 20. Compared with setting a stacked solar cell 30 structure or a structure of two layers of solar cells 30 arranged face to face, each solar cell 30 in this embodiment can directly receive the light beam passing through the light-transmitting sealed airbag 10, thereby ensuring the photoelectric conversion efficiency of each solar cell 30 while balancing the laying cost and improving the power generation efficiency of the floating photovoltaic module.

[0047] It should be further noted that reference can be made to Figure 4 , Figure 4Schematic diagram of a structure where there are light-transmitting gaps between adjacent solar cells in a floating photovoltaic module provided by an embodiment of the present utility model. In this embodiment, light-transmitting gaps 31 are provided between each adjacent pair of solar cells 30, which can avoid contact stress caused by the overlap of adjacent solar cells 30. At the same time, the existence of light-transmitting gaps 31 between adjacent solar cells 30 can ensure that sunlight irradiates the liquid surface through the light-transmitting gaps 31. Especially when the floating photovoltaic module is laid on the water surface, such as in the sea surface and other environments, leaving some gaps enables sunlight to irradiate the liquid surface, so as to reduce the damage to the environment. It can be expected that setting light-transmitting gaps between some adjacent solar cells should also fall within the protection scope of this embodiment.

[0048] Further, in order to reduce the damage to the environment, the above-mentioned backsheet 20 can be set as a transparent backsheet 20.

[0049] It should be noted that in this embodiment, setting the backsheet 20 as a transparent backsheet 20 can further facilitate sunlight to irradiate the liquid surface and further reduce the damage to the environment. In addition, since the liquid surface such as the water surface can also reflect light beams, while reducing the damage to the environment, the light reflected by the liquid surface reaches the surface of the solar cell 30 again through the transparent backsheet 20, which can evenly ensure the photoelectric conversion efficiency of the solar cell 30.

[0050] Further, in order to ensure the cleanliness of the inert protective gas 50 filled in the light-transmitting sealed airbag 10, an air outlet for discharging gas can be provided in the above-mentioned light-transmitting sealed airbag 10.

[0051] It should be noted that in this embodiment, by providing an air outlet in the light-transmitting sealed airbag 10, when the air inlet 11 and the air outlet are opened simultaneously, inert protective gas 50 can be filled through the air inlet 11, and the filled inert protective gas 50 will flow towards the air outlet direction, thereby discharging the miscellaneous gas in the light-transmitting sealed airbag 10, ensuring the cleanliness of the inert protective gas 50, and further improving the sealing and protection effect on the solar cell 30.

[0052] Further, in order to ensure the operation stability of the floating photovoltaic module, the above-mentioned backsheet 20 can be fixedly connected to the light-transmitting sealed airbag 10.

[0053] It should be noted that due to the complex environment of the application scenarios of floating photovoltaic modules, for example, when applied to the sea surface environment, the influence of tides is obvious in the near sea area, and the influence of waves is obvious in the far sea area, both of which will impact the floating photovoltaic modules. In this embodiment, by fixedly connecting the backplane 20 with the light-transmitting sealed airbag 10, when the floating photovoltaic module is impacted externally, the backplane 20 and the light-transmitting sealed airbag 10 are firmly connected, which can improve the impact resistance of the floating photovoltaic module. This embodiment does not limit the specific manner of connecting the backplane 20 with the light-transmitting sealed airbag 10, as long as the backplane 20 and the light-transmitting sealed airbag 10 can be firmly connected. For example, for the convenience of preparation, the backplane 20 can be fixedly connected to the light-transmitting sealed airbag 10 through an adhesive.

[0054] Furthermore, in this embodiment, to ensure the anti-damage performance of the floating photovoltaic module, a plurality of independent partitions can be provided in the light-transmitting sealed airbag 10. For example, two layers of sub-light-transmitting sealed airbags 10 can be provided. The outer sub-light-transmitting sealed airbag 10 is used to protect the overall module, and the backplane 20 and the battery pack are placed in the inner sub-light-transmitting sealed airbag 10. Or, multiple battery cells 30 can also be separately arranged in the corresponding independent partitions in the corresponding light-transmitting sealed airbags 10, so as to prevent the direct damage of the overall photovoltaic module caused by the single damage of the light-transmitting sealed airbag 10.

[0055] The floating photovoltaic module provided by the embodiment of the present invention includes a light-transmitting sealed airbag 10, a backplane 20 arranged inside the light-transmitting sealed airbag 10, and a battery pack arranged on the surface of the backplane 20; an air inlet 11 for filling an inert protective gas 50 is provided in the light-transmitting sealed airbag 10; the battery pack is a component formed by connecting a plurality of battery cells 30 through busbars. In the present invention, the backplane 20 with the battery pack connected to its surface is arranged inside the light-transmitting sealed airbag 10, and the inert protective gas 50 is introduced into the interior through the air inlet 11 in the light-transmitting sealed airbag 10 to complete the encapsulation of the battery cells 30. There is no need to additionally provide a glue film and a glass plate to encapsulate the battery cells 30, which reduces the light-receiving loss of the battery cells 30 caused by the encapsulation of the existing photovoltaic modules. At the same time, the weight of the module is reduced. The light-transmitting sealed airbag 10 is directly in contact with the water surface, and there is no need to additionally provide a floating body support component, with a simple structure and improved heat dissipation efficiency of the floating photovoltaic module.

[0056] In addition, in the embodiment of the present utility model, by setting the battery pack to include a plurality of battery strings with gaps formed between adjacent batteries, and each battery string includes a plurality of battery cells connected in series in sequence, and each battery cell is connected to the backplane to ensure the stability of the floating photovoltaic module; by setting the light-transmitting sealed airbag 10 as a light-transmitting sealed polypropylene airbag, the light-transmitting performance and sealing performance of the light-transmitting sealed airbag 10 are improved, which can effectively prevent the liquid 60 from invading and damaging the battery cell 30, and at the same time improve the photoelectric conversion efficiency of the battery cell 30; by setting the backplane 20 as a highly reflective white backplane 20, the light irradiated on the surface of the backplane 20 can be effectively reflected back to the surface of the battery cell 30, thereby improving the photoelectric conversion efficiency of the battery cell 30; by setting an adhesive to connect the battery cell 30 and the backplane 20, the convenience of connection is ensured, and at the same time the battery cell 30 is fixed at a specified position on the backplane 20, improving the stability of the floating photovoltaic module; by laying each battery cell 30 flat on the surface of the backplane 20, each battery cell 30 can directly receive the light beam passing through the light-transmitting sealed airbag 10, thereby balancing the laying cost while ensuring the photoelectric conversion efficiency of each battery cell 30 and improving the power generation efficiency of the floating photovoltaic module; by setting a light-transmitting gap 31 between every two adjacent battery cells 30, the contact stress caused by the overlap of adjacent battery cells 30 can be avoided, and at the same time it can ensure that sunlight irradiates the liquid surface through the light-transmitting gap 31, reducing the damage to the environment; by setting the backplane 20 as a transparent backplane 20, it is further beneficial for sunlight to irradiate the liquid surface, further reducing the damage to the environment, and at the same time the light reflected by the liquid surface reaches the surface of the battery cell 30 again through the transparent backplane 20, which can balance and ensure the photoelectric conversion efficiency of the battery cell 30; by setting an air outlet in the light-transmitting sealed airbag 10, the miscellaneous gas in the light-transmitting sealed airbag 10 can be discharged by using the air inlet 11 and the air outlet, ensuring the cleanliness of the inert protection gas 50, thereby improving the sealing and protection effect on the battery cell 30; by fixedly connecting the backplane 20 and the light-transmitting sealed airbag 10, when the floating photovoltaic module is impacted externally, the backplane 20 and the light-transmitting sealed airbag 10 are firmly connected, which can improve the impact resistance of the floating photovoltaic module.

[0057] Embodiment 2:

[0058] The floating photovoltaic module provided by the embodiment of the present utility model is different from Embodiment 1 in that:

[0059] The light-transmitting sealed airbag 10 is an airbag with an anti-ultraviolet additive added to the light-contact surface, or,

[0060] The light-contact surface of the light-transmitting sealed airbag 10 is coated with an anti-ultraviolet coating.

[0061] It should be noted that in this embodiment, by setting the part of the light-transmitting sealed airbag 10 corresponding to the light contact surface as an airbag added with an anti-ultraviolet additive, or coating the part of the light-transmitting sealed airbag 10 corresponding to the light contact surface with an anti-ultraviolet coating, the aging of the light-transmitting sealed airbag 10 caused by sunlight irradiation can be optimized, thereby improving the service life of the light-transmitting sealed airbag 10. It can be understood that in a general structure, the light contact surface of the light-transmitting sealed airbag 10 is the outer surface of the light-transmitting sealed airbag 10.

[0062] For the floating photovoltaic module provided by the embodiment of the utility model, by setting the part of the light-transmitting sealed airbag 10 corresponding to the light contact surface as an airbag added with an anti-ultraviolet additive, or coating the part of the light-transmitting sealed airbag 10 corresponding to the light contact surface with an anti-ultraviolet coating, the service life of the light-transmitting sealed airbag 10 can be extended.

[0063] In an embodiment of an application scenario, the above floating photovoltaic module may specifically include the following structure:

[0064] A light-transmitting sealed airbag, a backplane disposed inside the light-transmitting sealed airbag, and a battery pack disposed on the surface of the backplane; the light-transmitting sealed airbag is a light-transmitting sealed polypropylene airbag;

[0065] The light-transmitting sealed airbag is an airbag added with an anti-ultraviolet additive on the light contact surface, or the light contact surface of the light-transmitting sealed airbag is coated with an anti-ultraviolet coating; an air inlet for filling an inert protective gas and an air outlet for discharging gas are provided in the light-transmitting sealed airbag;

[0066] The battery pack is a component formed by connecting a plurality of battery cells through busbars, and the battery pack includes a plurality of battery strings; each battery string includes a plurality of battery cells connected in series in sequence, and each battery cell is connected to the backplane through an adhesive; each battery cell is laid flat and connected to the surface of the backplane facing the incident light; there is a light-transmitting gap between every two adjacent battery cells; the backplane is a transparent backplane;

[0067] The backplane is fixedly connected to the light-transmitting sealed airbag.

[0068] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts between the various embodiments, reference can be made to each other.

[0069] In addition, it should be noted that in this article, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant is intended to cover non-exclusive inclusion.

[0070] The above has introduced in detail a floating photovoltaic module provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the structure and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A floating photovoltaic module, characterized in that: include: A light-transmitting sealed airbag, a back plate arranged in the light-transmitting sealed airbag, and a battery pack arranged on a surface of the back plate; The light-transmitting sealed airbag is provided with a gas filling port for filling with inert protective gas; The battery pack is a component formed by connecting a plurality of battery cells via busbars.

2. The floating photovoltaic assembly according to claim 1, characterized in that: The battery pack includes a plurality of battery strings, with gaps formed between adjacent batteries; the battery string includes a plurality of battery cells connected in series in sequence, and each of the battery cells is connected to the back plate.

3. The floating photovoltaic assembly according to claim 1, characterized in that: The light-transmitting sealed airbag is an airbag with an anti-ultraviolet additive added to the light contact surface, or, The light contact surface of the light-transmitting sealed airbag is coated with an anti-ultraviolet coating.

4. The floating photovoltaic assembly according to claim 1, characterized in that: The light-transmitting sealed airbag is a light-transmitting sealed polypropylene airbag.

5. The floating photovoltaic assembly according to claim 1, characterized in that: The back plate is a white back plate.

6. The floating photovoltaic assembly according to claim 1, characterized in that: Each of the battery cells is connected to the back plate via adhesive.

7. The floating photovoltaic assembly according to claim 1, characterized in that: Each of the solar cells is flatly connected to the surface of the backplane facing the incident light; and / or, There is a light-transmitting gap between every two adjacent battery cells.

8. The floating photovoltaic assembly according to claim 7, characterized in that: The back plate is a transparent back plate.

9. The floating photovoltaic assembly according to claim 1, characterized in that: The light-transmitting sealed airbag is provided with an air outlet for releasing gas.

10. The floating photovoltaic assembly according to claim 1, characterized in that: The back plate is fixedly connected to the light-transmitting sealed airbag.

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