Efficient installation structure of photovoltaic module

Abstract

The utility model discloses an efficient installation structure of a photovoltaic assembly, which comprises a base surface and a photovoltaic packaging composite part laid on the base surface, the photovoltaic packaging composite part comprises a tensioning layer, and the base surface bears and / or is provided with a tensioning structure; wherein the tensioning layer is mounted and connected with the tensioning structure, and at least one group of acting force and counter-acting force in at least one opposite direction is formed on the tensioning layer through the tensioning structure, so that the tensioning layer is in a tensioned and flattened state on the base plane to realize an efficient mounting effect on the photovoltaic packaging composite part; according to the utility model, the on-site installation construction efficiency of the photovoltaic module is obviously improved, and the device is especially suitable for large-size photovoltaic modules so as to realize an efficient and convenient installation effect.

Description

Technical Field

[0001] The utility model belongs to the field of photovoltaic components, and in particular relates to a high-efficiency installation structure of photovoltaic components. Background Art

[0002] Reliability, safety and low cost are requirements that any energy product must meet simultaneously. Over the past few decades, the photovoltaic industry has reduced the cost of photovoltaic products by 300 times in the past 40 years through continuous and high-quality research and development to improve photoelectric conversion efficiency, localization and automation of supply chains and production equipment. Of course, these past few decades have significantly and effectively reduced the cost of photovoltaic cells to the extreme, and both the conversion efficiency limit and the production scale effect are about to encounter bottlenecks. Therefore, photovoltaic module products still need more technological innovation.

[0003] Specifically, existing photovoltaic modules are generally transported to the construction site after processing and manufacturing, and then installed by mechanical fastening or gluing. The efficiency of on-site installation is also relatively low. Especially with the development of photovoltaic modules in large sizes, the current installation scheme will be more unsuitable and inefficient.

[0004] Although there are some photovoltaic module products that can achieve flexible bending effects in the prior art, they are all based on the technical effects of lightweight and anti-hidden crack installation. They still need to occupy a large volume during the packaging and transportation process, and the efficiency of on-site installation and construction is also relatively low.

[0005] To this end, the inventor team of the applicant decided to propose a new installation direction based on the focused innovative research experience in the field of photovoltaic module installation and application and the accumulated theoretical knowledge level in the industry over the years to further promote the batch installation and application level of photovoltaic modules. Summary of the invention

[0006] In view of this, the purpose of the utility model is to provide an efficient installation structure for photovoltaic modules, which utilizes a tensioning structure to achieve efficient and convenient installation of photovoltaic packaging composite parts on a base surface, significantly improving the on-site installation and construction efficiency of photovoltaic modules, and is particularly suitable for application in large-size photovoltaic modules to achieve efficient and convenient installation effects.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A high-efficiency installation structure of a photovoltaic assembly comprises a base surface and a photovoltaic package composite laid on the base surface, the photovoltaic package composite comprises a tensioning layer, the base surface is load-bearing and / or is installed with a tensioning structure; wherein,

[0009] The tensioning layer is installed and connected to the tensioning structure, and the tensioning structure forms at least one set of action force and reaction force on the tensioning layer in at least one relative direction, so that the tensioning layer is in a tensioned and flattened state on the base surface to achieve an efficient installation effect on the photovoltaic encapsulation composite.

[0010] Preferably, the photovoltaic encapsulation composite comprises a front encapsulation part, a battery string layer and a back encapsulation part which are composited into one; the front encapsulation part and / or the back encapsulation part is provided with the tensioning layer; preferably, the tensioning layer comprises at least an epitaxial unit extending outward along at least one edge of the back encapsulation part, wherein the tensioning layer and the back encapsulation part are an integrally formed structure, or the tensioning layer is composited on the back side of the back encapsulation part.

[0011] Preferably, the tensioning layer further comprises a base unit connected to the epitaxial unit, wherein a front projection of the back side encapsulation portion covers the base unit, and the base unit is composited on the back side of the back side encapsulation portion.

[0012] Preferably, the tensioning layer uses a back net made of a flexible material, preferably a fiber back net, and more preferably a glass fiber back net.

[0013] Preferably, the tensioning structure at least comprises a first tensioning clamp and a second tensioning clamp located at both ends of the tensioning layer, and a first tensioning unit and a second tensioning unit bearing the load and / or mounted on the base surface; wherein,

[0014] The first tensioning clamp and the second tensioning clamp are respectively fixedly connected to two ends of the tensioning layer;

[0015] The first tensioning clamp is installed and connected to the first tensioning unit to form a first tensioning end for the tensioning layer;

[0016] The second tensioning clamp is installed and connected to the second tensioning unit to form a second tensioning end for the tensioning layer.

[0017] Preferably, the first tensioning unit or the second tensioning unit comprises a cable and / or an elastic member, wherein one end of the cable and / or the elastic member is connected to the first tensioning clamp or the second tensioning clamp, and the other end thereof is hung with a counterweight or locked downward on the base surface.

[0018] Preferably, the first tensioning unit or the second tensioning unit comprises a locking module, and the first tensioning clamp or the second tensioning clamp is locked on the base surface by the locking module.

[0019] Preferably, the first tensioning unit or the second tensioning unit comprises a pressure roller unit fixedly mounted on the base surface, wherein the pressure roller unit is close to the tensioning clamp corresponding thereto to shape and guide the tensioning layer close to the corresponding end thereof.

[0020] The efficient installation structure proposed in the present application is particularly suitable for the installation of large-sized photovoltaic packaging composite parts.

[0021] Preferably, the width of the photovoltaic encapsulation composite is in the range of 0.1-2.5 meters, and the length of the photovoltaic encapsulation composite is in the range of 0.1-150 meters.

[0022] Preferably, the photovoltaic encapsulation composite is bent and rolled into a rolled photovoltaic module before being laid on the base surface, wherein the number of bending and rolling turns of the photovoltaic module is not less than 2 turns; the number of bending and rolling turns of the photovoltaic module is preferably 3 turns to 300 turns, and more preferably 5 turns to 100 turns.

[0023] Preferably, the curvature radius of the photovoltaic encapsulation composite in at least one direction does not exceed 25 cm, more preferably does not exceed 15 cm.

[0024] The present application proposes to set a tension layer structure on the photovoltaic encapsulation composite part, and to install and connect the tension layer with the tension structure that is load-bearing or installed on the base surface, so that the tension layer of the photovoltaic encapsulation composite part is in a tensioned and flattened state on the base surface, and the tensioned state is used to achieve an efficient and convenient installation effect of the photovoltaic encapsulation composite part on the base surface, which significantly improves the on-site installation construction efficiency of the photovoltaic module, and is particularly suitable for large-size photovoltaic modules to achieve an efficient and convenient installation effect;

[0025] Furthermore, the present application breaks the product form of the photovoltaic modules in the prior art, proposes to bend and roll up the photovoltaic modules into a roll, and realizes a new product form of the rolled photovoltaic modules, which greatly improves the packaging and transportation efficiency of the photovoltaic modules, saves packaging and transportation costs, and can achieve a carpet-like efficient laying effect during installation and application, significantly improving the installation and construction efficiency of the photovoltaic modules;

[0026] In addition, since the rollable photovoltaic package composite provided by the present application (i.e., the rolled photovoltaic module) has excellent rollability and a curvature radius preferably not exceeding 25 cm, it has more performance advantages over the traditional glass-encapsulated photovoltaic modules, mainly including:

[0027] Anti-hidden cracking: To a large extent, it avoids the risk of hidden cracking of photovoltaic modules during the manufacturing process, transportation and installation;

[0028] Higher conversion efficiency: The ability to adapt to different shapes and surfaces also helps improve the response to low-light environments, thereby improving light conversion efficiency.

[0029] Optical performance advantages: It can better adapt to changes in the incident angle of light, thereby improving the light absorption rate and is expected to improve the photoelectric conversion efficiency.

[0030] Anti-loss and fatigue performance: When used in a bent or curled state, it can maintain relatively high anti-loss and anti-fatigue performance compared to rigid components, thus extending the life of photovoltaic components.

[0031] Vibration and shock resistance: It has relatively better tolerance to vibration and shock, especially in some environments that need to withstand vibration or shock, such as mobile equipment, transportation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the structure of a photovoltaic assembly under a specific implementation mode of the utility model (the cable connector is not shown);

[0033] Figure 2 yes Figure 1 A top view of

[0034] Figure 3 It is a schematic diagram of the electrical connection structure of the battery string layer in the photovoltaic packaging composite under the specific implementation mode of the utility model;

[0035] Figure 4 yes Figure 3 A schematic diagram of a partial cross-sectional structure of a photovoltaic encapsulation composite;

[0036] Figure 5a It is a schematic diagram of the composite structure of the photovoltaic encapsulation composite 21 through the adhesive film layer 22 and the back net 23 in a specific embodiment of the utility model;

[0037] Figure 5b It is a schematic diagram of the direct composite structure of the photovoltaic packaging composite 21 and the back net 23 in a specific embodiment of the utility model;

[0038] Figure 6a It is a schematic diagram of the structure of a photovoltaic encapsulation composite member 31 rolled up on a reel 32 in a specific embodiment of the utility model;

[0039] Figure 6b It is a structural schematic diagram of the curling process of the photovoltaic encapsulation composite member 31 in a specific embodiment of the utility model;

[0040] Figure 6c It is a schematic diagram of the structure of a photovoltaic assembly 30 wrapped with a binding tape 33 according to a specific embodiment of the utility model;

[0041] Figure 7 It is a schematic diagram of the photovoltaic module being unrolled and quickly laid in a "carpet" manner in a specific implementation mode of the utility model;

[0042] Figure 8 It is a schematic diagram of the decomposed structure of the layer structure of the photovoltaic encapsulation composite member in Example 1 of the utility model;

[0043] Fig. 9 This is a schematic diagram of the efficient installation structure of the photovoltaic module in Example 6 of the utility model;

[0044] Fig.10 yes Fig. 9 A top view of

[0045] Fig.11 yes Fig. 9 A magnified diagram of the layout structure;

[0046] Fig.12 This is a schematic diagram of the efficient installation structure of the photovoltaic module in Example 7 of the utility model;

[0047] Fig.13 yes Fig.12 Side view of

[0048] Fig.14 This is a schematic diagram of the efficient installation structure of the photovoltaic module in Example 8 of the utility model;

[0049] Fig.15 yes Fig.14 Side view of. DETAILED DESCRIPTION

[0050] See also Figure 1 and Figure 2 As shown, an embodiment of the utility model discloses a photovoltaic module, including a photovoltaic packaging composite, wherein the photovoltaic packaging composite is bent and rolled into a rolled photovoltaic module; the number of bending and rolling turns of the photovoltaic module is not less than 2 turns; preferably, in this embodiment, the length and width of the photovoltaic packaging composite are set according to actual installation application requirements, and can be specifically set according to the base surface area of ​​the photovoltaic module to be laid, and this embodiment does not impose any special limitation on it; wherein, the width range of the photovoltaic packaging composite is preferably 0.1-2.5 meters, and the length of the photovoltaic packaging composite is preferably 0.1-150 meters, preferably 1-120 meters, and further preferably 2-100 meters; preferably, in this embodiment, the number of bending and rolling turns of the photovoltaic module is 3 turns to 300 turns, and more preferably 5 turns to 100 turns.

[0051] Preferably, in the present embodiment, the photovoltaic component at least includes a first photovoltaic component circle located at the inner circumference and a second photovoltaic component circle bent and rolled on the outer circumference of the first photovoltaic component circle; wherein the maximum size of the first photovoltaic component circle does not exceed 50 cm, and more preferably does not exceed 25 cm; further preferably, in the present embodiment, the first photovoltaic component circle located at the inner circumference uses an edge of the photovoltaic packaging composite as its bending and rolling starting position, and is terminated after returning to the bending and rolling starting position after bending and rolling the photovoltaic packaging composite for one circle, and the photovoltaic packaging composite located between the bending and rolling starting position and the ending position after bending and rolling for one circle is used as the first photovoltaic component circle; further preferably, in the present embodiment, the Nth photovoltaic component circle uses the ending position of the N-1th photovoltaic component circle as its bending and rolling starting position, and is terminated after returning to the bending and rolling starting position after bending and rolling the photovoltaic packaging composite for one circle, and the photovoltaic packaging composite located between the bending and rolling starting position and the ending position after bending and rolling for one circle is used as the Nth photovoltaic component circle; wherein N is a natural number ≥2.

[0052] It should also be specially noted that, when the present application is implemented, the outermost curved and rolled edge of the photovoltaic module may not be located at the cutoff position of the adjacent photovoltaic module circle, that is, it is less than one photovoltaic module circle, and the number of curved and rolled circles of the photovoltaic module is not necessarily a positive integer. These are all possible situations that may occur when the photovoltaic module of the present application is implemented, and they all fall within the scope of protection of the present application.

[0053] Preferably, in order to facilitate the photovoltaic encapsulation composite to achieve a good bending and rolling effect, in the present embodiment, the radius of curvature of the photovoltaic encapsulation composite in at least one direction (the curvature radius test can be carried out with reference to the test standard of IEC 61215-2021) does not exceed 25 cm, and more preferably does not exceed 15 cm.

[0054] Preferably, in order to achieve a good shaping effect on the photovoltaic module and avoid unnecessary deformation during transportation or storage, in the present embodiment, the photovoltaic module includes a curved rolled edge located at the outermost periphery, wherein a locking structure is provided at the curved rolled edge; wherein preferably, the locking structure adopts Velcro and / or tape and / or strap and / or buckle, and technical personnel in this field can make specific choices according to actual needs. Of course, other structures can also be used to achieve the locking effect at the curved rolled edge of the photovoltaic module, and this embodiment does not impose any special restrictions on it.

[0055] Preferably, in this embodiment, the photovoltaic encapsulation composite comprises a front encapsulation part, a battery string layer and a back encapsulation part which are composited into one; wherein the front encapsulation part and the back encapsulation part do not include a rigid encapsulation material, and preferably use a flexible encapsulation material, and specifically use a known preferred flexible encapsulation material, as long as it can ensure that the curvature radius of the photovoltaic encapsulation composite in at least one direction does not exceed 25 cm; and / or the battery string layer comprises a plurality of photovoltaic battery strings connected in series and / or in parallel and / or without establishing a direct series or parallel connection relationship, each photovoltaic battery string comprises a plurality of battery cells connected in series (including stacked series) and / or in parallel, and the battery cells are made of crystalline silicon wafers or amorphous silicon wafers, and a battery string layer made of other crystalline materials can also be used, and the present application does not make a special and unique limitation on it;

[0056] It should be specially noted that the “several photovoltaic cell strings without direct series or parallel connection relationship” involved in the present application refer to those that are physically arranged in the same cell string layer, and they themselves have no direct series or parallel or other connection relationship in the cell string layer. These are conventional technical choices that can be made by those skilled in the art based on the content of this application.

[0057] Furthermore, the battery string layer involved in the present application can be any known battery string layer, and this embodiment does not specifically limit this. More preferably, in this embodiment, the battery cell adopts a crystalline silicon wafer (the corresponding photovoltaic battery string is a crystalline silicon battery string), which may include a monocrystalline silicon wafer and / or a polycrystalline silicon wafer. Preferably, in this embodiment, the battery cell adopts a whole piece or a slice, which can be selected according to the specific situation. These are the flexible implementation ranges of those skilled in the art based on known technologies. Further preferably, in this embodiment, the single side length of the whole battery cell is 100-260mm; the battery cell adopts a whole piece or a slice (specifically 1 / 2 slice or 1 / 3 slice or 1 / 4 slice or 1 / 6 slice or slices of other specifications).

[0058] Preferably, in this embodiment, the battery string layer is in a horizontal shape or a vertical shape, and may also be designed in any other known shape, which are all within the scope of flexible implementation by those skilled in the art based on known technologies.

[0059] Preferably, please refer to Figure 3 and Figure 4 As shown, in this embodiment, each photovoltaic cell string 141 in the photovoltaic packaging composite is connected in parallel using an integrally packaged and unidirectional bypass switch 142 (the number of which can be single or multiple, and those skilled in the art can make conventional settings according to actual circuit output needs, and this embodiment does not specifically limit it), and at the same time, each bypass switch 142 is electrically connected to the output through an inner bus bar 143, eliminating the use of a junction box; preferably, in this embodiment, the bypass switch can be a diode ( Figure 3 As shown), it can also be a MOS tube, a triode, or other bypass switch structure with unidirectional conduction. Since it has better performance in resisting high-temperature reverse bias breakdown, the bypass switch is more preferably a MOS tube; the two ends of the photovoltaic packaging composite realize power output through the well-known cable connector 143.

[0060] Since the photovoltaic packaging composite of the present application no longer uses a junction box, its photovoltaic cell string can be flexibly arranged in the longitudinal and / or transverse directions. Theoretically, the length and width of the photovoltaic packaging composite can be infinitely extended. In other words, the length and width of the photovoltaic packaging composite can be flexibly customized according to the actual product requirements of the photovoltaic components.

[0061] The detailed electrical connection scheme of the junction box-free photovoltaic packaging composite involved in the embodiment of the present application can be directly referred to the applicant's prior authorized patent: the junction box-free flexible lightweight photovoltaic module provided by the authorization announcement number CN 214753799 U.

[0062] Preferably, in order to achieve excellent flexible and bendable packaging effects, in the present embodiment, the photovoltaic packaging composite comprises a flexible front packaging portion, a crystalline silicon cell string layer and a flexible back packaging portion which are composited into one, wherein the flexible front packaging portion and the flexible back packaging portion can be any preferred known flexible packaging material, more preferably, the flexible front packaging portion and / or the flexible back packaging portion comprises a thermosetting powder coating composite fiber cloth layer or a fiber material reinforced polymer sheet, wherein the thermosetting powder coating composite fiber cloth layer can preferably adopt the packaging layer scheme disclosed in the applicant's prior authorized patent CN108022988B, and the fiber material reinforced polymer sheet can preferably adopt the photovoltaic packaging composite board material scheme disclosed in the applicant's prior authorized patent CN211555907U; of course, in order to further ensure the packaging quality, in the embodiment of the present application, the flexible front packaging The back portion and / or the flexible back packaging portion may further be provided with various well-known thermoplastic polymer material layers (also referred to as packaging film layers), such as adhesive film layers, PET (Chinese meaning means "polyethylene terephthalate") film layers, polyolefin film layers, PP (Chinese meaning means "polypropylene") co-extruded films, modified PO (Chinese meaning means "polyolefins") co-extruded films or modified PE (Chinese meaning means "polyethylene") co-extruded films, weather-resistant adhesive film layers, etc. In this regard, the present embodiment does not impose any restrictions on it, as long as the required flexible bending requirements can be achieved. Furthermore, the more preferred flexible packaging scheme can refer to the series of prior applications of the applicant, including: CN115911140A, CN216698389U, CN214753799U, CN217933809U, etc. In order to save space for the description, the present embodiment will not be described in detail.

[0063] Preferably, this embodiment further proposes a method for preparing the photovoltaic module described above, which at least comprises the following steps:

[0064] S10), preparing a photovoltaic packaging composite by a composite process, preferably by a laminating device or a continuous composite device to carry out the composite process; preferably, a laminating device or a continuous composite device is used to implement the composite process; wherein, the laminating device can adopt a known laminating process, and the continuous composite device can refer to the continuous composite molding device provided in the prior application of the applicant: CN110491961B, and refer to the continuous composite process adopted by the device, and in order to save the description space, the present embodiment will not be described in detail;

[0065] S20), bending and rolling up the photovoltaic encapsulation composite to achieve a rolling effect, wherein preferably, a winder is used to bend and roll up the photovoltaic encapsulation composite, and when bending and rolling up, the photovoltaic encapsulation composite is rolled up on the reel of the winder.

[0066] Preferably, see Figure 7 As shown, this embodiment further proposes an application of the photovoltaic assembly according to the above, wherein the photovoltaic assembly 1 is unrolled and quickly laid on the base surface in a "carpet" manner, and then directly or indirectly mounted on the base surface; further preferably, the photovoltaic assembly 1 is quickly fixedly mounted on the base surface by the high-efficiency mounting structure described below, and the photovoltaic assembly 1 can also be directly fixedly mounted on the base surface by other fastening methods and / or bonding methods. Those skilled in the art can choose a suitable installation method according to actual needs, and this embodiment does not impose the sole limitation on this.

[0067] On the basis of the above implementation contents, the present embodiment further preferably proposes an efficient installation structure of a photovoltaic component, comprising a base surface and a photovoltaic packaging composite laid on the base surface, the photovoltaic packaging composite comprising a tensioning layer, and the base surface is load-bearing and / or installed with a tensioning structure; wherein the tensioning layer is installed and connected to the tensioning structure, and the tensioning structure forms at least one set of action force and reaction force on the tensioning layer in at least one relative direction, so that the tensioning layer is in a tensioned and flattened state on the base surface to achieve an efficient installation effect on the photovoltaic packaging composite; preferably, in the present embodiment, the base surface can be a base surface of any known material or shape, such as a color steel tile base surface, a flat-top base surface, a flat-top base surface, a sloping-top base surface, etc.

[0068] It should be specially explained that the tensioned and flattened state involved in the present application means that the entire plane position of the tensioning layer is subjected to the tensioning force.

[0069] Preferably, in this embodiment, the front encapsulation part and / or the back encapsulation part of the photovoltaic encapsulation composite part is provided with a tensioning layer, that is, the tensioning layer is directly arranged in the corresponding front encapsulation part or the back encapsulation part as a part of the direct front encapsulation part or the back encapsulation part; of course, the tensioning layer can also be compounded on the back side of the back encapsulation part; more preferably, in this embodiment, in order to facilitate the performance of the photovoltaic module and to achieve a better tensioning installation effect, in this embodiment, the tensioning layer is compounded on the back side of the back encapsulation part;

[0070] Further preferably, in the present embodiment, the tensioning layer extends outward along at least one end edge of the back side packaging portion, and further preferably, the epitaxial unit extends outward along at least two opposite end edges of the back side packaging portion to form an epitaxial unit; wherein, as one embodiment of the present application, the tensioning layer and the back side packaging portion are an integrally formed structure, that is, the tensioning layer is the epitaxial portion of the back side packaging portion; as another embodiment of the present application, the tensioning layer and the back side packaging portion are separate structures, and are composited with the back side packaging portion as a whole, wherein, further preferably, in the present embodiment, when the tensioning layer and the back side packaging portion are separate structures, the tensioning layer also includes a base unit integrally connected with its epitaxial unit, wherein the front projection of the back side packaging portion covers the base unit, and the base unit is composited on the back side packaging portion; further preferably, in the present embodiment, the tensioning layer adopts a back mesh.

[0071] Further preferably, in the present embodiment, the tensioning layer adopts a back net made of a flexible material, preferably a fiber back net, and more preferably a glass fiber back net; it should be particularly noted that the back net involved in the present embodiment can be a mesh structure woven from any known flexible material (for example, glass fiber, that is, glass fiber), as long as the expected tensioning effect can be achieved. Technical personnel in this field can select the specific material and back net shape according to actual needs, and the present embodiment does not impose any special restrictions on this.

[0072] Preferably, in this embodiment, the tensioning structure at least includes a first tensioning clamp and a second tensioning clamp located at both ends of the tensioning layer, and a first tensioning unit and a second tensioning unit that bear the load and / or are installed on the base surface; wherein the first tensioning clamp and the second tensioning clamp are respectively fixedly connected to the two ends of the tensioning layer; the first tensioning clamp is installed and connected to the first tensioning unit to form a first tensioning end of the tensioning layer; and the second tensioning clamp is installed and connected to the second tensioning unit to form a second tensioning end of the tensioning layer.

[0073] Further preferably, in the present embodiment, the first tensioning unit or the second tensioning unit comprises a cable (specifically, there may be multiple cables) and / or an elastic member (specifically, there may be multiple cables), wherein one end of the cable and / or the elastic member is connected to the first tensioning clamp, and a counterweight is hung on the other end thereof (the required tensioning state may be calculated based on the weight of the photovoltaic module and the shape of the mounting base, thereby determining the weight of the required counterweight, for example, 5-20 kg, etc.), or the other end thereof may be directly locked downward on the base surface (that is, the cable and / or the elastic member is locked on the base surface by pulling downward); as other parallel further preferred schemes, in other embodiments, the first tensioning unit or the second tensioning unit comprises a locking module, and the first tensioning clamp or the second tensioning clamp is locked on the base surface by the locking module. Further, the locking module may be a well-known mechanical fastening structure, such as a locking member or a locking gear assembly.

[0074] In order to further facilitate the guiding of the tensioning layer at the tensioning end and the shaping effect of adhering to the base surface, preferably, in this embodiment, the first tensioning unit or the second tensioning unit includes a pressure roller unit fixedly installed on the base surface, wherein the pressure roller unit is close to the tensioning clamp corresponding to it, and shapes and guides the tensioning layer close to its corresponding end.

[0075] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0076] Example 1: Based on the above implementation scheme, this application specifically proposes Example 1, please refer to Figure 1 and Figure 2 The photovoltaic module 10 shown includes a photovoltaic packaging composite member, please refer to Figure 8 As shown, it includes a fluorine film 11, a thermosetting powder coating composite fiber cloth layer 12, a front EVA adhesive film 13, a crystalline silicon battery string layer 14, a back EVA adhesive film 15, and a fiber material reinforced polymer sheet 16, wherein the fluorine film 11, the thermosetting powder coating composite fiber cloth layer 12 and the front EVA adhesive film 13 constitute a flexible front packaging part, and the back EVA adhesive film 15 and the fiber material reinforced polymer sheet 16 constitute a flexible back packaging part;

[0077] During preparation, after the above-mentioned layer structures are laid in a composite device in order, composite is achieved through a composite process to obtain a formed photovoltaic packaging composite. Specifically preferably, in this embodiment, a continuous composite device is used to complete the composite packaging between the flexible front packaging part, the crystalline silicon cell string layer and the flexible back packaging part, thereby obtaining a photovoltaic packaging composite. After testing, the width of the photovoltaic packaging composite is about 0.5 meters, and the radius of curvature in at least one direction is about 15 cm;

[0078] In this embodiment, the photovoltaic encapsulation composite is bent and rolled in its length direction into a rolled photovoltaic assembly 10; the number of bending and rolling circles of the photovoltaic assembly 10 is 8 circles, specifically including a first photovoltaic assembly circle 10a, a second photovoltaic assembly circle 10b, a third photovoltaic assembly circle 10c, a fourth photovoltaic assembly circle 10d, a fifth photovoltaic assembly circle 10e, a sixth photovoltaic assembly circle 10f, a seventh photovoltaic assembly circle 10g and an eighth photovoltaic assembly circle 10h; wherein the first photovoltaic assembly circle 10a is circular in shape ( Figure 2 a1 is the bending and rolling starting position of the first photovoltaic component circle 10a, and a2 is the bending and rolling ending position of the first photovoltaic component circle 10a. Its diameter (that is, the maximum size of the first photovoltaic component circle 10a) is 20 cm.

[0079] In this embodiment 1, a winder is used to bend and roll up the photovoltaic packaging composite. During the bending and rolling process, the photovoltaic packaging composite is rolled up on the reel of the winder. The bending and rolling of the photovoltaic packaging composite is automatically completed by the winder to obtain a photovoltaic module with a completed rolling effect. After packaging, it can be circulated, transported, installed and applied.

[0080] Example 2: Based on the above implementation scheme, the present application specifically proposes Example 2, providing a photovoltaic packaging composite 21, including a front packaging part, a battery string layer and a back packaging part 21a that are composited into one body, wherein, see Figure 5a As shown, a back web 23 (in this embodiment 2, a glass fiber web is specifically used) is compounded on the back packaging part 21a through an adhesive film layer 22, and the area of ​​the back web 23 is larger than the area of ​​the back packaging part 21a, and extends outward along the edges of the back packaging part 21a. After the photovoltaic packaging composite 21 is bent and rolled, a photovoltaic module is obtained; as another implementation method of this embodiment 2, please refer to Figure 5b As shown, a back web 23 (in this embodiment 2, a glass fiber web is specifically used) is directly compounded on the back packaging part 21a, and the area of ​​the back web 23 is larger than the area of ​​the back packaging part 21a, and the back web 23 extends outward along the edges of the back packaging part 21a, and the photovoltaic packaging composite 21 is bent and rolled to obtain a photovoltaic module;

[0081] When the photovoltaic modules are subsequently installed, they are quickly laid out in a "carpet" style, and then hooked onto the extended back net to flatten and fix it on the base surface, thus completing an efficient and convenient installation.

[0082] Example 3: Based on the above implementation scheme, this application specifically proposes Example 3, using a winding machine to bend and roll the photovoltaic packaging composite member, please refer to Figure 6a , Figure 6b and Figure 6c As shown, when bending and rolling, the photovoltaic encapsulation composite 31 is first rolled onto the reel 32 of the winder (not shown), and then the reel 32 is driven to rotate, and finally the photovoltaic encapsulation composite 31 is bent and rolled into a rolled photovoltaic component 30 (the reel 32 is withdrawn); in order to facilitate the shaping effect of the photovoltaic component 30, a locking structure is provided at the bent and rolled edge. In this embodiment 3, a binding tape 33 is specifically wrapped around the bent and rolled edge of the photovoltaic component 30 to avoid deformation; it should be noted that in actual implementation, while the photovoltaic encapsulation composite 31 is bent and rolled, the edge of the photovoltaic component 30 can be cut and trimmed to meet the specifications and size requirements of the final product.

[0083] Example 4: Based on the above implementation scheme, the present application specifically proposes Example 4, the size of the installation platform is about 80m (length) * 2.5m (width), and it is flat; the photovoltaic modules are arranged in a single row vertical shape, with a length of 76-78m, covering an area ratio of 87-90% of the installation platform, and the installed capacity is about 30KW;

[0084] Among them, the battery string layer in the photovoltaic module is integrated into one by connecting 10-15 independent integrated modules in series, and the length and width of a single integrated module are 4.8m*2.3m, or 6m*2.3m, or 7.2m*2.3m. It should be noted that those skilled in the art can design the size of the photovoltaic module according to the actual installation area, and this embodiment does not impose any special restrictions on it.

[0085] Example 5: Based on the above implementation scheme, the present application specifically proposes Example 5, the size of the installation platform is about 80m (length) * 5m (width), which is a color steel tile base; the photovoltaic modules are arranged in a single row in a horizontal shape, with a length of 76-78m, covering an area ratio of 87-90% of the installation platform, and an installed capacity of about 30KW;

[0086] Among them, the battery string layer in the photovoltaic module is integrated into one by connecting 12-18 independent integrated modules in series, and the length and width of a single integrated module are 4.8m*4.5m, or 7.2m*4.5m. It should be noted that those skilled in the art can design the size of the photovoltaic module according to the actual installation area, and this embodiment does not impose any special restrictions on it.

[0087] As another variation of Example 5, the remaining implementation schemes are the same as the above-mentioned technical scheme of this Example, with the difference that the photovoltaic module adopts a double-row horizontal shape, wherein the battery string layer in the photovoltaic module is specifically composed of an upper row of battery strings and a lower row of battery strings that are not connected to each other and are arranged in double rows in parallel up and down, and the upper row of battery strings and the lower row of battery strings are respectively composed of 12-18 independent integrated modules connected in series, and the size of a single integrated module is 4.8m*2.3m, or 7.2m*2.3m.

[0088] Embodiment 6: The remaining technical solutions of this embodiment are the same as those of Embodiment 2, except that, in this embodiment 6, see Fig. 9 , Fig.10 and Fig.11 An efficient installation structure of a photovoltaic module is shown, comprising a base surface and a photovoltaic packaging composite 21 laid on the base surface, the photovoltaic packaging composite 21 comprising a back net 23, the base surface is a flat color steel tile base surface 41, and the color steel tile base surface 41 is load-bearing with a tensioning structure; wherein the back net 23 is installed and connected with the tensioning structure, and at least one set of action force and reaction force is formed on the back net 23 in a relative direction (specifically, the length direction of the photovoltaic packaging composite 21) through the tensioning structure, so that the back net 23 is in a tensioned and flattened state on the base surface to achieve an efficient installation effect of the photovoltaic packaging composite 21;

[0089] In this embodiment, the tensioning structure includes a first tensioning clamp 42a and a second tensioning clamp 42b located at both ends of the back net 23, and a first tensioning unit 43a and a second tensioning unit 43b bearing weight on the color steel tile base surface 41; wherein the first tensioning clamp 42a and the second tensioning clamp 42b are respectively fixedly connected with both ends of the back net 23; the first tensioning clamp 42a and the first tensioning unit 43a are installed and connected to form a first tensioning end of the back net 23; the second tensioning clamp 42b and the second tensioning unit 43b are installed and connected to form a second tensioning end of the back net 23; it should be noted that the first tensioning clamp 42a and the second tensioning clamp 42b only need to have a clamping effect on the back net 23, and there is no special restriction on their shapes;

[0090] The first tensioning unit 43a and the second tensioning unit 43b both include cables 44 (three are shown in the figure). In other embodiments, elastic members may be used to replace the cables, wherein one end of the cable 44 corresponding to the first tensioning unit 43a is connected to the first tensioning clamp 42a, and a counterweight 45 is hung on the other end thereof; one end of the cable 44 corresponding to the second tensioning unit 43b is connected to the second tensioning clamp 42b, and a counterweight 45 is hung on the other end thereof;

[0091] In order to further facilitate the guiding of the back net 23 at the tensioning end and the shaping effect of sticking to the color steel tile base surface 41, preferably, in this embodiment, the first tensioning unit 43a and the second tensioning unit 43b both include a first pressure roller unit 46a and a second pressure roller unit 46b fixedly installed on the color steel tile base surface 41, wherein each pressure roller unit 46a, 46b is close to the corresponding tensioning clamp 42a, 42b to shape and guide the back net 23 close to its corresponding end.

[0092] Embodiment 7: The remaining technical solutions of this embodiment are the same as those of Embodiment 6, except that, see Fig.12 and Fig.13 An efficient installation structure of a photovoltaic component is shown, wherein the base surface is a flat-top base surface 51a, wherein a mounting base surface 51b with a left-slanted surface and a right-slanted surface is installed and constructed on the flat-top base surface 51a, a photovoltaic packaging composite is laid on the mounting base surface 51b, and a tensioning structure is loaded on the mounting base surface 51b; wherein the photovoltaic packaging composite includes a left-side photovoltaic packaging composite 21-a and a right-side photovoltaic packaging composite 21-b which are integrated into one by a back mesh 23'.

[0093] Embodiment 8: The remaining technical solutions of this embodiment are the same as those of Embodiment 7, except that, see Fig.14 and Fig.15 An efficient mounting structure of a photovoltaic module is shown, wherein the base surface is an inclined mounting base surface 61 which is inclined to the left and to the right, a photovoltaic encapsulation composite 21 is laid on the inclined mounting base surface 61, and a load-bearing tensioning structure is provided on the inclined mounting base surface 61; wherein the photovoltaic encapsulation composite includes a left-side photovoltaic encapsulation composite 21-a and a right-side photovoltaic encapsulation composite 21-b which are integrated into one by a back mesh 23'.

[0094] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0095] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An efficient installation structure of a photovoltaic module, comprising a base surface and a photovoltaic encapsulation composite member laid on the base surface, characterized in that: The photovoltaic encapsulation composite comprises a tensioning layer, and the base surface is load-bearing and / or is installed with a tensioning structure; wherein, The tensioning layer is installed and connected to the tensioning structure, and the tensioning structure forms at least one set of action force and reaction force on the tensioning layer in at least one relative direction, so that the tensioning layer is in a tensioned and flattened state on the base surface to achieve an efficient installation effect on the photovoltaic encapsulation composite.

2. The efficient installation structure of photovoltaic modules according to claim 1, characterized in that: The photovoltaic encapsulation composite part comprises a front encapsulation part, a battery string layer and a back encapsulation part which are integrated into one; the front encapsulation part and / or the back encapsulation part are provided with the tensioning layer.

3. The efficient installation structure of photovoltaic modules according to claim 2, characterized in that: The tensioning layer at least includes an epitaxial unit extending outward along at least one edge of the back side packaging part, wherein the tensioning layer and the back side packaging part are an integrally formed structure, or the tensioning layer is composited on the back side of the back side packaging part.

4. The efficient installation structure of photovoltaic modules according to claim 3, characterized in that: The tensioning layer further comprises a base unit connected to the epitaxial unit, wherein a front projection of the back side encapsulation portion covers the base unit, and the base unit is compounded on the back side of the back side encapsulation portion.

5. The efficient installation structure of photovoltaic modules according to claim 1, characterized in that: The tensioning layer is a back net made of flexible material.

6. The efficient installation structure of photovoltaic modules according to claim 5, characterized in that: The tensioning layer adopts a fiber backing net.

7. The efficient installation structure of photovoltaic modules according to claim 5, characterized in that: The tensioning layer adopts a glass fiber backing net.

8. The efficient installation structure of photovoltaic modules according to claim 1, characterized in that: The tensioning structure at least comprises a first tensioning clamp and a second tensioning clamp located at both ends of the tensioning layer, and a first tensioning unit and a second tensioning unit that bear the load and / or are installed on the base surface; wherein, The first tensioning clamp and the second tensioning clamp are respectively fixedly connected to two ends of the tensioning layer; The first tensioning clamp is installed and connected to the first tensioning unit to form a first tensioning end for the tensioning layer; The second tensioning clamp is installed and connected to the second tensioning unit to form a second tensioning end for the tensioning layer.

9. The efficient installation structure of photovoltaic modules according to claim 8, characterized in that: The first tensioning unit or the second tensioning unit comprises a cable and / or an elastic member, wherein one end of the cable and / or the elastic member is connected to the first tensioning clamp or the second tensioning clamp, and the other end thereof is hung with a counterweight or locked downward on the base surface.

10. The efficient installation structure of photovoltaic modules according to claim 8, characterized in that: The first tensioning unit or the second tensioning unit comprises a locking module, through which the first tensioning clamp or the second tensioning clamp is locked on the base surface.

11. The efficient installation structure of photovoltaic modules according to claim 8, characterized in that: The first tensioning unit or the second tensioning unit comprises a pressure roller unit fixedly mounted on the base surface, wherein the pressure roller unit is close to the tensioning clamp corresponding thereto to shape and guide the tensioning layer close to the corresponding end thereof.

12. The efficient installation structure of photovoltaic modules according to claim 1, characterized in that: The width of the photovoltaic encapsulation composite piece ranges from 0.1 to 2.5 meters, and the length of the photovoltaic encapsulation composite piece ranges from 0.1 to 150 meters.

13. The efficient installation structure of photovoltaic modules according to claim 1, characterized in that: The photovoltaic encapsulation composite is bent and rolled into a rolled photovoltaic component before being laid on the base surface, wherein the number of bending and rolling turns of the photovoltaic component is not less than 2 turns.

14. The efficient installation structure of photovoltaic modules according to claim 13, characterized in that: The number of bending and rolling turns of the photovoltaic module is 3 turns to 300 turns.

15. The efficient installation structure of photovoltaic modules according to claim 13, characterized in that: The number of bending and rolling turns of the photovoltaic module is 5 to 100 turns.

16. The efficient installation structure of photovoltaic modules according to claim 12, characterized in that: The curvature radius of the photovoltaic encapsulation composite in at least one direction does not exceed 25 cm.

17. The efficient installation structure of photovoltaic modules according to claim 12, characterized in that: The curvature radius of the photovoltaic encapsulation composite in at least one direction does not exceed 15 cm.

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