TWM642478U - Solar photovoltaic assembly - Google Patents

Abstract

This case provides a solar photovoltaic assembly structure. The solar photovoltaic assembly structure includes a light-transmitting panel, a packaging material layer, a backplane, a plurality of solar cell modules and a light-transmitting scattering module. The light-transmitting panel, the encapsulation material layer and the backplane are sequentially stacked along the first direction. A plurality of solar battery modules are arranged in the encapsulation material layer and face the first direction to form an absorbing area to absorb light and convert electric energy. A plurality of solar cell modules interfere to allow a penetrating light to enter the back panel through the light-transmitting area from the light-transmitting panel. The light-transmitting scattering module is arranged on the backplane, spatially relative to the light-transmitting area, and is configured to scatter the passing light.

Description

Solar photovoltaic assembly structure

This case relates to a field of application of solar photovoltaic technology, especially a solar photovoltaic assembly structure suitable for the fields of agricultural electricity symbiosis and fishery electricity symbiosis.

Solar photovoltaic technology is one of the main development directions for developing green energy in various countries. The solar energy can be converted into DC power through the photovoltaic effect of the solar photovoltaic module (photovoltaic module). Traditional solar photovoltaic modules can be divided into single-side light-incidence and double-side light-incidence structures. In the field design of agricultural electricity symbiosis and fishery electricity symbiosis type system, in order to allow the crops or cultured organisms to obtain uniform illumination, the single-sided incident light module can make the light penetrate to the bottom by widening the installation distance of the module, or Double-sided light-incident modules are used, and the light transmission ratio is designed by using the size of the battery arrangement gap, but these methods will increase more land costs and reduce the efficiency of the modules.

In view of this, it is necessary to provide a solar photovoltaic assembly structure, which utilizes the limited cell gap design, so that the light passing through the cell gap forms a uniformly scattered light distribution under the module, and helps the animals and plants under the photovoltaic panel to maintain growth, so as to solve the problem of traditional solar cells. lack of knowledge.

The purpose of this case is to provide a solar photovoltaic assembly structure suitable for the fields of agricultural electricity symbiosis and fishery electricity symbiosis. By using the limited battery gap design, the light passing through the battery gap forms a uniformly scattered light distribution under the module, which helps photovoltaic panels The flora and fauna below continue to grow.

Another object of this case is to provide a solar photovoltaic assembly structure. The optical scattering structure is designed corresponding to the cell gap of the solar cell module, which can increase the light scattering path penetrating the module, so that uniform light distribution can be obtained under the photoelectric system. Among them, diffusers such as optical diffusers (such as PET/PC/PMMA, etc.), optical diffusers, diffuser coatings, and optical diffuser lenses can be added on the inside or outside of the solar module backplane. In addition, the solar cell module can also be assembled with roughened glass and roughened transparent backplane structure to achieve the purpose of uniform light penetration. Since the light is scattered under the solar battery module after passing through the solar battery module, uniform illuminance can be obtained under the solar battery module. On the other hand, the light-transmitting area formed by arranging solar cell modules in the solar photovoltaic assembly structure has a transmittance of 20% to 80%, and the light-transmitting scattering module formed by combining a diffuser or a roughened backplane is more suitable for agricultural power symbiosis , Fishing and electricity symbiosis field application, define the occupancy ratio of green power facilities according to laws and regulations and adjust different penetration rates to form an optimized system arrangement. Taking the light transmittance of the open-air agricultural ground type project site as an example, the light transmittance must be greater than 60% (that is, the shade rate of the facility must be less than 40%). When it is combined with the arrangement and installation of the light-transmitting gaps between the modules between the assembly structures, the light-transmitting ratio of the overall case is greater than 60%, which can meet the regulatory requirements. For the field of agricultural electricity symbiosis or fishery electricity symbiosis, the light transmission rate formed by arranging solar cell modules in the solar photovoltaic assembly structure is better at 40% to 80%. For the building roof field, the light transmission rate formed by arranging solar cell modules in the solar photovoltaic assembly structure is better at 30% to 80%. For solar photovoltaic assembly structures of the same size, by reducing the number of battery strings or reducing the number of cells arranged in each battery string, the width of the light-transmitting area formed by the battery gap can be enlarged or reduced according to the proportion of the occupied area of the battery, so as to increase the light transmission. The purpose of area design is to realize multiple applications and enhance product competitiveness.

Another object of the present case is to provide a solar photovoltaic assembly structure. Corresponding to the light-transmitting area design, the optical scattering structure can be pre-placed on the surface of the backplane or integrally formed, without affecting the packaging process of solar cell modules arranged between the light-transmitting panel and the backplane, and can also be added on the backplane after the packaging process is completed The lower surface effectively simplifies the addition of light-transmitting and scattering modules, and increases the modulation of the process, thereby realizing multiple applications of uniform light transmission and enhancing product competitiveness.

To achieve the aforementioned purpose, this case provides a solar photovoltaic assembly structure, including a light-transmitting panel, a packaging material layer, a backplane, a plurality of solar cell modules, and a light-transmitting scattering module. The light-transmitting panel, the encapsulation material layer and the backplane are sequentially stacked along the first direction. A plurality of solar battery modules are arranged in the encapsulation material layer and face the first direction to form an absorbing area to absorb light and convert electric energy. A plurality of solar cell modules interfere to allow a penetrating light to enter the back panel through the light-transmitting area from the light-transmitting panel. The light-transmitting scattering module is arranged on the backplane, spatially relative to the light-transmitting area, and is configured to scatter the passing light.

In one embodiment, the absorbing region has a first horizontal projected area in the viewing direction of the first direction, the light-transmitting region has a second horizontal projected area in the viewing direction of the first direction, and the second horizontal projected area is relative to the first horizontal projected area. The sum of the projected area and the second horizontal projected area ranges from 20% to 80%.

In one embodiment, the range of the second horizontal projected area relative to the sum of the first horizontal projected area and the second horizontal projected area is between 40% and 80%, and the solar photoelectric assembly structure is used for a symbiosis of agricultural electricity or fishery Electrosymbiosis field.

In one embodiment, the range of the second horizontal projected area relative to the sum of the first horizontal projected area and the second horizontal projected area is 30% to 80%, and the solar photovoltaic assembly structure is applied to a building roof field.

In one embodiment, the light transmission and scattering module has a third horizontal projection area in the viewing direction of the first direction, and the third horizontal projection area is larger than the second horizontal projection area.

In one embodiment, the light-transmitting scattering module includes a diffuser disposed between the packaging material layer and the backplane.

In one embodiment, the diffuser is an optical diffusion sheet, an optical diffusion plate, a diffusion film coating layer or an optical diffusion lens.

In one embodiment, the light-transmissive scattering module is disposed in the backplane.

In one embodiment, the backplane is a roughened glass or a roughened transparent backplane.

In one embodiment, the packaging material layer is polyvinyl butyral (polyvinyl butyral, PVB), ethylene vinyl acetate (ethylene vinyl acetate, EVA), expandable polyethylene (expandable polyethylene, EPE) or polyolefin It is composed of polyolefin elastomer (POE).

In one embodiment, the light-transmitting area and the light-transmitting scattering module are overlapped in the viewing direction of the first direction.

Some typical embodiments embodying the features and advantages of the present application will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different aspects without departing from the scope of this case, and the descriptions and drawings therein are used as illustrations in nature rather than limiting this case. For example, if the following content of the present disclosure describes that a first feature is disposed on or above a second feature, it means that it includes an embodiment in which the above-mentioned first feature and the above-mentioned second feature are in direct contact, Embodiments in which additional features may be disposed between the above-mentioned first feature and the above-mentioned second feature, so that the above-mentioned first feature and the above-mentioned second feature may not be in direct contact are also included. In addition, different embodiments in the present disclosure may use repeated reference symbols and/or symbols. These repetitions are for the purpose of simplification and clarity, and are not intended to limit the relationship between various embodiments and/or the described appearance structures. Furthermore, in order to describe the relationship between one component or characteristic part and another (plural) component or (plural) characteristic part conveniently in the drawings, space-related terms may be used, such as "upper", "lower", "inner", " outside" and similar expressions. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise positioned (eg, rotated 90 degrees or at other orientations) and the description of the spatially relative terminology used be interpreted accordingly. Also, when a component is referred to as being "connected" or "coupled" to another component, it can be directly connected or coupled to the other component or intervening components may be present. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the disclosure are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. In addition, it can be understood that although terms such as “first” and “second” may be used in the claims to describe different components, these components should not be limited by these terms. In the embodiment Those components described accordingly are denoted by different component symbols. These terms are used to distinguish between different components. For example, a first component may be called a second component, and similarly, a second component may also be called a first component without departing from the scope of the embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Except in operating/working examples, or unless expressly stated otherwise, all numerical ranges, amounts, values and percentages disclosed herein (such as those of angles, time durations, temperatures, operating conditions, ratios of quantities, and the like) etc.) should be understood to be modified by the term "about" or "substantially" in all embodiments. Accordingly, unless indicated to the contrary, the numerical parameters set forth in this disclosure and in the appended claims are approximations that may vary if desired. For example, each numerical parameter should at least be construed in light of the number of stated significant digits and by applying ordinary rounding principles. Ranges can be expressed herein as from one endpoint to the other or as between two endpoints. All ranges disclosed herein include endpoints unless otherwise specified.

Fig. 1 is a structural schematic diagram showing the solar photovoltaic assembly structure of the first embodiment of the present case. In this embodiment, the solar photovoltaic assembly structure 1 includes a light-transmitting panel 10 , an encapsulation material layer 20 , a backplane 40 , a plurality of solar cell modules 30 and a light-transmitting scattering module 50 . The transparent panel 10 , the encapsulation material layer 20 and the backplane 40 are sequentially stacked along a first direction such as the Z axis. Wherein the light-transmitting panel 10 and the backplane 40 are, for example, transparent sheet-like or plate-like structures, and the encapsulation material layer 20 has light-transmitting or scattering properties, and is also adhesive, and is arranged between the light-transmitting panel 10 and the backplane 40, so that The transparent panel 10 , the packaging material layer 20 and the backplane 40 form a vertical stack structure from top to bottom. In this embodiment, the packaging material layer 20 is made of, for example, polyvinyl butyral (polyvinyl butyral, PVB), ethylene vinyl acetate (ethylene vinyl acetate, EVA), expandable polyethylene (expandable polyethylene, EPE) or Polyolefin elastomer (polyolefin elastomer, POE), but this case is not limited thereto. In addition, a plurality of solar cell modules 30 are arranged in an array in the encapsulation material layer 20 , and the encapsulation is arranged between the transparent panel 10 and the back plate 40 . In other embodiments, the plurality of solar cell modules 30 can be prefabricated on the transparent panel 10 and then packaged with the packaging material layer 20 and the back sheet 40 . Of course, the encapsulation of the plurality of solar cell modules 30 disposed on the light-transmitting panel 10 and the backplane 40 through the encapsulation material layer 20 does not limit the necessary technical features of the present application, and will not be repeated here. In this embodiment, a plurality of solar cell modules 30 are arranged in the encapsulation material layer 20, and face the first direction (that is, the Z-axis direction) to form an absorption region 31 (for example, the network shown in Fig. 2A to Fig. 2D lattice area), the assembly absorbs, for example, sunlight S1 and converts it into electrical energy. In this embodiment, when a plurality of solar battery modules 30 are arranged in the encapsulation material layer 20, the encapsulation material layer 20 further forms a light-transmitting region 21, which is not visible in the first direction (ie, the Z-axis direction). Interference by the plurality of solar battery modules 30 allows a penetrating light S2 irradiated by the sun to enter the back plate 40 from the light-transmitting panel 10 through the light-transmitting region 21 . In this embodiment, the light-transmitting scattering module 50 is arranged at the junction of the backplane 40 and the encapsulation material layer 20, spatially relative to the light-transmitting region 21, and assembles the scattered light S2 to form a uniform The scattered light S3 is supplied to the lower field, for example, to help the growth of the animals and plants below, so as to realize multiple applications of the solar photovoltaic assembly structure 1 .

It should be noted that, in this embodiment, a plurality of solar cell modules 30 are arranged in an array in the encapsulation material layer 20 to form the light-transmitting region 21 according to actual application requirements. In the solar photovoltaic assembly structure 1 of the same size, the light transmission area of the light transmission area 21 is increased by reducing the arrangement of the solar cell modules 30 . In other words, compared with the conventional solar photovoltaic assembly structure, the solar photovoltaic assembly structure 1 of this case further reduces the number of solar cell modules 30 in series or reduces the number of each solar cell module 30 in series, so as to increase the light-transmitting area 21 of light transmission area. FIG. 2A to FIG. 2D disclose different implementations in which the solar cell modules are arranged in an array on the encapsulation material layer. In one example, the plurality of solar cell modules 30 of the solar photovoltaic assembly structure 1 can omit the serial arrangement of cells adjacent to the long sides on both sides, so that the plurality of solar cell modules 30 can be retracted on the outermost long side And as the main light-transmitting region 21, as shown in FIG. 2A. In another example, when reducing the number of strings of solar cell modules 30 in the solar photovoltaic assembly structure 1, the distance between each string of solar cell modules 30 arranged along the long-side direction can be maintained to achieve multiple The solar battery modules 30 are set indented on the long side and the average interval between each series is used as the main light-transmitting area 21, as shown in FIG. 2B. In yet another example, the plurality of solar battery modules 30 in the solar photovoltaic assembly structure 1 can omit the arrangement of batteries adjacent to the short sides on both sides, reducing the number of solar battery modules 30 in each series, and realizing multiple A solar battery module 30 is set back on the outermost short side and serves as the main light-transmitting area 21, as shown in FIG. 2C. In yet another example, when reducing the number of solar battery modules 30 in each string of the solar photovoltaic assembly structure 1, the distance between each string of solar battery modules 30 can be adjusted to realize a plurality of solar battery modules 30 The light-transmitting regions 21 are evenly distributed on the short side, as shown in FIG. 2D . Of course, the arrangement of the plurality of solar cell modules 30 on the XY plane is not limited to the aforementioned embodiments, and the width, size, and area of the light-transmitting region 21 can be adjusted by adjusting the occupancy of the solar cell modules 30. The area ratio is enlarged or reduced to achieve the purpose of increasing the light transmission area design.

。於一實施例中，當太陽能光電組裝結構1應用於一農電共生或漁電共生場域時，由於法規限制露天營農地面型案場規範之透光率需大於60%（即設施遮蔽率需小於40%）以上，因此太陽能光電組裝結構1可控制第二水平投影面積A2相對第一水平投影面積A1與第二水平投影面積A2之和的範圍介於40%至80%，即

，搭配組裝結構間模組透光間隙排佈安裝，湊成整體案場透光比例大於60%即可符合法規需求。藉此，太陽能光電組裝結構1即可組配應用於農電共生或漁電共生場域，通過複數個太陽能電池模組30間透光區域21的穿透光線S2，受透光散射模組50的作用即可產生均勻的散射光線S3，幫助太陽能光電組裝結構1下方的動植物維持成長。於另一實施例中，當太陽能光電組裝結構1應用於一建物屋頂場域時，第二水平投影面積A2相對第一水平投影面積A1與第二水平投影面積A2之和的範圍介於30%至80%，即

，則通過複數個太陽能電池模組30間透光區域21的穿透光線S2，受透光散射模組50的作用即可產生均勻的散射光線S3，提供太陽能光電組裝結構1下方的足夠照明。當然，本案並不以此為限。 Refer to Figure 1, Figure 2A to Figure 2D. In this embodiment, the absorption regions 31 of the plurality of solar cell modules 30 have a first horizontal projected area A1 in the viewing direction of the first direction (that is, the Z axis/vertical direction), and the light-transmitting regions 21 have a horizontal projection area A1 in the first direction. There is a second horizontal projected area A2 in the viewing direction, and the range of the second horizontal projected area A2 relative to the sum of the first horizontal projected area A1 and the second horizontal projected area A2 is 20% to 80%. Right now

. In one embodiment, when the solar photovoltaic assembly structure 1 is applied to a farm-electricity symbiosis or fishery-electricity symbiosis field, the light transmittance of the open-air farm ground-type case field specification must be greater than 60% due to regulations (that is, the facility shading rate need to be less than 40%), so the solar photovoltaic assembly structure 1 can control the range of the second horizontal projected area A2 relative to the sum of the first horizontal projected area A1 and the second horizontal projected area A2 to be between 40% and 80%, that is

, with the arrangement and installation of the light-transmitting gaps between the modules in the assembly structure, the light-transmitting ratio of the overall case is greater than 60%, which can meet the regulatory requirements. In this way, the solar photovoltaic assembly structure 1 can be assembled and applied to the field of agricultural electricity symbiosis or fishery electricity symbiosis. The penetrating light S2 passing through the light-transmitting area 21 between the plurality of solar cell modules 30 is received by the light-transmitting scattering module 50 The role of the uniform scattered light S3 can be generated to help the growth of animals and plants under the solar photovoltaic assembly structure 1 . In another embodiment, when the solar photovoltaic assembly structure 1 is applied to a roof field of a building, the range of the second horizontal projected area A2 relative to the sum of the first horizontal projected area A1 and the second horizontal projected area A2 is 30% to 80%, ie

, then through the penetrating light S2 of the light-transmitting area 21 between the plurality of solar cell modules 30, the effect of the light-transmitting scattering module 50 can generate uniform scattered light S3 to provide sufficient illumination under the solar photovoltaic assembly structure 1 . Of course, this case is not limited to this.

In this embodiment, the light transmission and scattering module 50 includes, for example, a diffuser disposed between the packaging material layer 20 and the backplane 40 . The diffuser can be, for example, an optical diffuser, an optical diffuser plate, a diffuser film coating layer or an optical diffuser lens, spatially relative to the light-transmitting region 21, distributed on the packaging material layer 20 and the back plate 40 between. The optical diffuser is made of, for example but not limited to, polyethylene terephthalate (PET), polycarbonate (polycarbonate, PC) or polymethyl methacrylate (poly methyl methacrylate, PMMA). In this embodiment, the light-transmitting region 21 and the light-transmitting scattering module 50 are overlapped in the viewing direction of the first direction (ie, the Z-axis direction). The light transmission and scattering module 50 has a third horizontal projection area A3 in the viewing direction of the first direction, and the third horizontal projection area A3 is larger than the second horizontal projection area A2. Thereby, the penetrating light S2 passing through the light-transmitting region 21 can be ensured to be subjected to the action of the light-transmitting scattering module 50 before entering the back plate 40 to generate uniform scattered light S3. Of course, the arrangement of the light-transmitting scattering modules 50 corresponding to the light-transmitting regions 21 can also be adjusted according to actual application requirements.

Fig. 3 is a structural schematic diagram showing the solar photovoltaic assembly structure of the second embodiment of the present invention. In this embodiment, the solar photovoltaic assembly structure 1a is similar to the solar photovoltaic assembly structure 1 shown in FIG. 1, FIG. 2A to FIG. Let me repeat. In this embodiment, the light transmission and scattering module 50 a is, for example, a diffusion film coating layer, which can be coated on the upper surface of the back plate 40 first. Afterwards, a plurality of solar cell modules 30 are encapsulated and arranged between the light-transmitting panel 10 and the backplane 40 through the packaging material layer 20 , so that the vertical stacking of the solar photovoltaic assembly structure 1 a in the first direction (ie, the Z-axis direction) can be realized. In this embodiment, the third horizontal projected area A3 of the light-transmitting scattering module 50a in the first direction (that is, the Z-axis direction) is equal to the sum of the first horizontal projected area A1 and the second horizontal projected area A2, which is much larger than the second horizontal projected area A3. Horizontal projected area A2. Therefore, the transmitted light S2 passing through the light-transmitting region 21 can generate uniform scattered light S3 through the action of the light-transmitting scattering module 50a, realizing multiple applications of the solar photovoltaic assembly structure 1a. Of course, this case is not limited to this.

Fig. 4 is a structural schematic diagram showing the solar photovoltaic assembly structure of the third embodiment of the present case. In this embodiment, the solar photovoltaic assembly structure 1b is similar to the solar photovoltaic assembly structure 1 shown in FIG. 1, FIG. 2A to FIG. Let me repeat. In this embodiment, the light transmission and scattering module 50 is, for example, an optical diffusion sheet, an optical diffusion plate, a diffusion film coating layer or an optical diffusion lens, and is disposed on the upper surface of the back plate 40 . Among them, a plurality of solar cell modules 30 can be packaged and arranged between the light-transmitting panel 10 and the backplane 40 through the packaging material layer 20, and then the light-transmitting scattering module 50 is arranged on the lower surface 43 of the backplane 40 to realize solar energy. Vertical stacking of the optoelectronic assembly structures 1 b in the first direction (ie, the Z-axis direction). In this embodiment, the third horizontal projected area A3 of the light transmission and scattering module 50 in the first direction (ie, the Z-axis direction) is larger than the second horizontal projected area A2 . Therefore, the penetrating light S2 passing through the light-transmitting region 21 can then pass through the action of the light-transmitting scattering module 50 to generate uniform scattered light S3. On the other hand, since the light-transmitting scattering module 50 is disposed on the lower surface 43 of the backplane 40, a plurality of solar cell modules 30 can be packaged and arranged between the light-transmitting panel 10 and the backplane 40 through the packaging material layer 20. , and simply attach or coat the optical diffusion sheet, the optical diffusion plate, the optical diffusion lens or the diffusion film coating layer on the lower surface 43 of the back plate 40 to construct the light transmission and diffusion module 50 . In other words, the arrangement of the light transmission and scattering module 50 does not affect the packaging process of the solar cell module 30 , and is convenient for implementation and adjustment.

Fig. 5 is a structural schematic diagram showing the solar photovoltaic assembly structure of the fourth embodiment of the present case. In this embodiment, the solar photovoltaic assembly structure 1c is similar to the solar photovoltaic assembly structure 1b shown in FIG. 4 , and the same component numbers represent the same components, structures and functions, which will not be repeated here. In this embodiment, the light transmission and scattering module 50 a is, for example, a diffusion film coating layer, which is coated on the lower surface of the back plate 40 . A plurality of solar battery modules 30 can be encapsulated and arranged between the light-transmitting panel 10 and the backplane 40 through the packaging material layer 20, and then the light-transmitting scattering module 50a is arranged on the lower surface 43 of the backplane 40 to realize solar photovoltaic. The vertical stacking of the assembled structures 1c in the first direction (ie, the Z-axis direction). In this embodiment, the third horizontal projected area A3 of the light-transmitting scattering module 50a in the first direction (that is, the Z-axis direction) is equal to the sum of the first horizontal projected area A1 and the second horizontal projected area A2, which is much larger than the second horizontal projected area A3. Horizontal projected area A2. Therefore, the penetrating light S2 passing through the light-transmitting region 21 can then pass through the action of the light-transmitting scattering module 50 a to generate uniform scattered light S3 . On the other hand, since the light-transmitting scattering module 50a is disposed on the lower surface 43 of the backplane 40, it is possible to package and arrange a plurality of solar battery modules 30 between the light-transmitting panel 10 and the backplane 40 through the packaging material layer 20. , and simply attach or coat the optical diffusion sheet, the optical diffusion plate or the diffusion film coating layer on the lower surface 43 of the back plate 40 to construct the light transmission and scattering module 50a. In other words, the arrangement of the light transmission and scattering module 50 a does not affect the packaging process of the solar cell module 30 , and facilitates the realization of additional installations and adjustment of the assembly process. Of course, this case is not limited to this.

Fig. 6 is a structural schematic diagram showing the solar photovoltaic assembly structure of the fifth embodiment of the present case. In this embodiment, the solar photovoltaic assembly structure 1d is similar to the solar photovoltaic assembly structure 1 shown in FIG. 1, FIG. 2A to FIG. Let me repeat. In this embodiment, the light-transmitting scattering module is, for example, disposed on the microstructure 41 in the back plate 40a. In one embodiment, the light-transmitting and scattering module is, for example, a roughened structure disposed on the upper surface 42 or the lower surface 43 of the back plate 40a. In other words, the backplane 40a can be, for example, a roughened glass or a roughened transparent backplane. A plurality of solar battery modules 30 are encapsulated and arranged between the light-transmitting panel 10 and the backplane 40a through the encapsulation material layer 20, so that the vertical stacking of the solar photovoltaic assembly structure 1d in the first direction (ie, the Z-axis direction) can be realized. Since the light-transmitting scattering module and the back plate 40a are integrally formed, the solar photovoltaic assembly structure 1d can be completed without additional assembly steps, effectively omitting assembly procedures. On the other hand, in the viewing direction of the first direction (that is, the Z axis/vertical direction), regardless of the ratio of the first horizontal projected area A1 of the absorbing region 31 to the second horizontal projected area A2 of the light-transmitting region 21, the light passing through the light-transmitting region The penetrating light S2 of 21 can generate uniform scattered light S3 through the function of the light-transmitting scattering module 50a to help the animals and plants under the solar photovoltaic assembly structure 1d maintain growth, or provide sufficient illumination below.

To sum up, this case provides a solar photovoltaic assembly structure suitable for the field of agricultural electricity symbiosis and fishery electricity symbiosis. The limited battery gap design is used to make the light passing through the battery gap form a uniformly scattered light distribution under the module, which helps The flora and fauna under the photovoltaic panels maintain their growth. The optical scattering structure is designed corresponding to the cell gap of the solar cell module, which can increase the light scattering path penetrating the module, so that uniform light distribution can be obtained under the photoelectric system. Among them, diffusers such as optical diffusers (such as PET/PC/PMMA, etc.), optical diffusers, diffuser coatings, and optical diffuser lenses can be added on the inside or outside of the solar module backplane. In addition, the solar cell module can also be assembled with roughened glass and roughened transparent backplane structure to achieve the purpose of uniform light penetration. Since the light is scattered under the solar battery module after passing through the solar battery module, uniform illuminance can be obtained under the solar battery module. On the other hand, the light-transmitting area formed by arranging solar cell modules in the solar photovoltaic assembly structure has a transmittance of 20% to 80%, and the light-transmitting scattering module formed by combining a diffuser or a roughened backplane is more suitable for agricultural power symbiosis , Fishing and electricity symbiosis field application, define the occupancy ratio of green power facilities according to laws and regulations and adjust different penetration rates to form an optimized system arrangement. Taking the light transmittance of the open-air agricultural ground type project site as an example, the light transmittance must be greater than 60% (that is, the shade rate of the facility must be less than 40%). At the same time, it is arranged and installed with the light-transmitting gaps of the modules between the assembly structures, and the light-transmitting ratio of the overall case is greater than 60%, which can meet the regulatory requirements. For the field of agricultural electricity symbiosis or fishery electricity symbiosis, the light transmission rate formed by arranging solar cell modules in the solar photovoltaic assembly structure is better at 40% to 80%. For the building roof field, the light transmission rate formed by arranging solar cell modules in the solar photovoltaic assembly structure is better at 30% to 80%. For solar photovoltaic assembly structures of the same size, by reducing the number of battery strings or reducing the number of cells arranged in each battery string, the width of the light-transmitting area formed by the battery gap can be enlarged or reduced according to the proportion of the occupied area of the battery, so as to increase the light transmission. purpose of area design. Corresponding to the light-transmitting area design, the optical scattering structure can be pre-placed on the surface of the backplane or integrally formed, without affecting the packaging process of solar cell modules arranged between the light-transmitting panel and the backplane, and can also be added on the backplane after the packaging process is completed The lower surface effectively simplifies the addition of light-transmitting and scattering modules, and increases the modulation of the process, thereby realizing multiple applications of uniform light transmission and enhancing product competitiveness.

This case can be modified in various ways by people who are familiar with this technology, but it does not deviate from the intended protection of the scope of the attached patent application.

1, 1a, 1b, 1c, 1d: solar photovoltaic assembly structure 10: Translucent panel 20: Packaging material layer 21: Translucent area 30:Solar battery module 31: Absorption area 40, 40a: backplane 41:Microstructure 42: upper surface 43: lower surface 50, 50a: Light transmission and scattering module A1: The first horizontal projected area A2: second horizontal projected area A3: Third horizontal projected area S1: sun rays S2: Penetrating light S3: scattered light X, Y, Z: axes

Fig. 1 is a structural schematic diagram showing the solar photovoltaic assembly structure of the first embodiment of the present case. FIG. 2A to FIG. 2D disclose different implementations in which the solar cell modules are arranged in an array on the encapsulation material layer. Fig. 3 is a structural schematic diagram showing the solar photovoltaic assembly structure of the second embodiment of the present invention. Fig. 4 is a structural schematic diagram showing the solar photovoltaic assembly structure of the third embodiment of the present case. Fig. 5 is a structural schematic diagram showing the solar photovoltaic assembly structure of the fourth embodiment of the present case. Fig. 6 is a structural schematic diagram showing the solar photovoltaic assembly structure of the fifth embodiment of the present case.

1: Solar photovoltaic assembly structure

10: Translucent panel

20: Packaging material layer

21: Translucent area

30:Solar battery module

31: Absorption area

40: Backplane

50: Light transmission and scattering module

A1: The first horizontal projected area

A2: second horizontal projected area

A3: Third horizontal projected area

S1: sun rays

S2: Penetrating light

S3: scattered light

X, Y, Z: axes

Claims (11)

A solar photovoltaic assembly structure, comprising a transparent panel; a layer of packaging material; A backplane, wherein the transparent panel, the encapsulation material layer and the backplane are sequentially stacked along a first direction; A plurality of solar battery modules are arranged in the encapsulation material layer and face the first direction to form an absorbing area to absorb light and convert electric energy, wherein the encapsulation material layer includes a light-transmitting area, Not being interfered with by the plurality of solar cell modules in the visual direction, allowing a penetrating light to enter the backplane from the light-transmitting panel through the light-transmitting region; and A light-transmitting scattering module is arranged on the back plate, spatially opposite to the light-transmitting area, and is configured to scatter the passing light. The solar photovoltaic assembly structure according to claim 1, wherein the absorbing region has a first horizontal projection area in the viewing direction of the first direction, and the light-transmitting region has a second horizontal projection in the viewing direction of the first direction Area, the second horizontal projected area ranges from 20% to 80% relative to the sum of the first horizontal projected area and the second horizontal projected area. The solar photovoltaic assembly structure according to claim 2, wherein the range of the second horizontal projected area relative to the sum of the first horizontal projected area and the second horizontal projected area is 40% to 80%, and the solar photovoltaic assembly The structural combination is applied to a field of agricultural electricity symbiosis or fishery electricity symbiosis. The solar photovoltaic assembly structure according to claim 2, wherein the range of the second horizontal projected area relative to the sum of the first horizontal projected area and the second horizontal projected area is 30% to 80%, and the solar photovoltaic assembly The structure assembly is applied to a building roof field. The solar photovoltaic assembly structure according to claim 2, wherein the light-transmitting scattering module has a third horizontal projected area in the viewing direction of the first direction, and the third horizontal projected area is larger than the second horizontal projected area. The solar photovoltaic assembly structure according to claim 1, wherein the light-transmitting scattering module includes a diffuser disposed between the encapsulation material layer and the backplane. The solar photovoltaic assembly structure according to claim 6, wherein the diffuser is an optical diffusion sheet, an optical diffusion plate, a diffusion film coating layer or an optical diffusion lens. The solar photovoltaic assembly structure as claimed in claim 1, wherein the light-transmitting scattering module is disposed in the backplane. The solar photovoltaic assembly structure as claimed in claim 8, wherein the backplane is a roughened glass or a roughened transparent backplane. The solar photovoltaic assembly structure as described in Claim 1, wherein the packaging material layer is polyvinyl butyral (polyvinyl butyral, PVB), ethylene vinyl acetate (ethylene vinyl acetate, EVA), expandable polyethylene (expandable Polyethylene, EPE) or polyolefin elastomer (polyolefin elastomer, POE). The solar photovoltaic assembly structure according to claim 1, wherein the light-transmitting region and the light-transmitting scattering module are overlapped in the viewing direction of the first direction.

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