Splicing type flexible photovoltaic module structure

Abstract

The utility model discloses a splicing type flexible photovoltaic module structure, the splicing type flexible photovoltaic module structure comprises a splicing type flexible photovoltaic module and a module fixing device, the splicing type flexible photovoltaic module is formed by splicing a plurality of photovoltaic power generation units to form a set geometrical shape, and the photovoltaic power generation units are arranged on the splicing type flexible photovoltaic module. The spliced flexible photovoltaic module is fixed on a to-be-installed surface based on the module fixing device and is connected to energy storage equipment through a photovoltaic protection and management circuit. According to the invention, the plurality of photovoltaic power generation units are combined into flexible photovoltaic modules with different geometrical shapes through different splicing modes, and the application range of the photovoltaic modules can be enlarged.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaic technology, and specifically relates to a spliced flexible photovoltaic module structure. Background Art

[0002] Photovoltaic modules are the last-mile power generation product in photovoltaic power generation and come in a variety of styles. Among them, flexible photovoltaic modules are widely used in combination with buildings due to their light weight and bendability. However, the sizes and shapes of existing flexible photovoltaic modules are fixed, which leads to their limitations in practical applications. Utility Model Content

[0003] The main purpose of this application is to provide a spliced flexible photovoltaic module structure, aiming to solve the problem in the prior art that flexible photovoltaic modules are limited in application due to fixed size and shape.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A spliced flexible photovoltaic module structure includes: a spliced flexible photovoltaic module and a module fixing device, wherein the spliced flexible photovoltaic module is formed by splicing multiple photovoltaic power generation units to form a set geometric shape, the spliced flexible photovoltaic module is fixed to the surface to be installed based on the module fixing device, and is connected to an energy storage device through a photovoltaic protection and management circuit.

[0006] Optionally, the multiple photovoltaic power generation units include a first photovoltaic power generation unit, a second photovoltaic power generation unit, a third photovoltaic power generation unit, a fourth photovoltaic power generation unit, a fifth photovoltaic power generation unit, a sixth photovoltaic power generation unit and a seventh photovoltaic power generation unit, wherein each photovoltaic power generation unit has the same structure, and each photovoltaic power generation unit includes: a crystalline silicon cell, which is encapsulated by a flexible packaging body; a busbar is provided on the edge side of the crystalline silicon cell, and a wiring port and / or plug is provided on the busbar.

[0007] Optionally, the component fixing device includes: a fixing plate, a magnet and a crimping piece, wherein the spliced flexible photovoltaic component is arranged on the front side of the fixing plate, the magnet is correspondingly adsorbed on the spliced flexible photovoltaic component and the back side of the fixing plate, and the crimping piece is arranged on the edge side of the fixing plate.

[0008] Optionally, the crimping piece includes a base and a buckle cover, and the base and the buckle cover match each other.

[0009] Optionally, the base is stepped, and the base includes a groove and a boss, and the groove and the boss are integrally formed, wherein a mounting hole is provided on the groove; the buckle cover includes a first buckle plate and a second buckle plate, and the first buckle plate and the second buckle plate are integrally formed, and a through hole is provided on the second buckle plate, and the second buckle plate matches the groove, and the through hole corresponds to the mounting hole; the first buckle plate matches the boss, and a gap is formed between the first buckle plate and the boss, and the edge side of the fixing plate is located in the gap.

[0010] Optionally, the fixing plate includes any one of the following: a transparent polycarbonate plate, a metal plate, a plastic plate, and a composite material plate.

[0011] Optionally, the photovoltaic protection and management circuit includes: a first branch, a second branch and a third branch, wherein the first end of the first branch is connected to the negative terminal of the spliced flexible photovoltaic component, and the second end of the first branch is connected to the first end of the third branch to form a bus node; the first end of the second branch is connected to the positive terminal of the spliced flexible photovoltaic component, and the second end of the second branch is connected to the bus node; the second end of the third branch is connected to the energy storage device.

[0012] Optionally, the first branch includes: a first DC fuse, a first MPPT controller and a first diode connected in sequence, wherein the input end of the first DC fuse is connected to the negative end of the spliced flexible photovoltaic assembly, the output end of the first DC fuse is connected to the input end of the first MPPT controller, the output end of the first MPPT controller is connected to the anode of the first diode, and the cathode of the first diode is connected to the bus node.

[0013] Optionally, the second branch includes: an LED smart display, a second DC fuse, a second MPPT controller and a second diode connected in sequence, wherein the input end of the LED smart display is connected to the positive end of the spliced flexible photovoltaic assembly, the output end of the LED smart display is connected to the input end of the second DC fuse, the output end of the second DC fuse is connected to the input end of the second MPPT controller, the output end of the second MPPT controller is connected to the anode of the second diode, and the cathode of the second diode is connected to the bus node.

[0014] Optionally, the third branch includes: a DC surge protector and a DC circuit breaker, wherein the input end of the DC surge protector is connected to the bus node, and the output end of the DC surge protector is grounded; the input end of the DC circuit breaker is connected to the bus node, and the output end of the DC circuit breaker is connected to the energy storage device.

[0015] This application can bring the following beneficial effects: This application allows users to combine multiple photovoltaic power generation units into flexible photovoltaic modules of different geometric shapes through different splicing methods, thereby increasing the flexibility of module application and enabling it to adapt to more diverse installation scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of a first basic power generation unit provided by another embodiment of the present application;

[0017] Figure 2 is a structural schematic diagram of a second basic power generation unit provided by another embodiment of the present application;

[0018] Figure 3 is a structural schematic diagram of a third basic power generation unit provided by another embodiment of the present application;

[0019] Figure 4 is a structural schematic diagram of a fourth basic power generation unit provided by another embodiment of the present application;

[0020] Figure 5 is a structural schematic diagram of a fifth basic power generation unit provided by another embodiment of the present application;

[0021] Figure 6 is a structural schematic diagram of a sixth basic power generation unit provided by another embodiment of the present application;

[0022] Figure 7 is a structural schematic diagram of a seventh basic power generation unit provided by another embodiment of the present application;

[0023] Figure 8 is a schematic structural diagram of a rectangular flexible photovoltaic module provided by another embodiment of the present application;

[0024] Figure 9 is a structural schematic diagram of a rectangular fixing plate provided in another embodiment of the present application;

[0025] Figure 10 is a schematic diagram of a rectangular flexible photovoltaic module structure provided by another embodiment of the present application;

[0026] Figure 11 This is a schematic structural diagram of an 8-shaped flexible photovoltaic module provided by another embodiment of the present application;

[0027] Figure 12 This is a structural diagram of an 8-shaped fixing plate provided in another embodiment of the present application;

[0028] Figure 13 This is a schematic diagram of an 8-shaped flexible photovoltaic module structure provided by another embodiment of the present application;

[0029] Figure 14 is a schematic diagram of another embodiment of the present application showing a magnet positioned on a fixed plate;

[0030] Figure 15 This is a schematic diagram of the overall structure of a crimping member located on the edge side of a fixed plate provided in another embodiment of the present application;

[0031] Figure 16 This is a schematic diagram of the disassembled structure of a crimping component provided in another embodiment of the present application;

[0032] Figure 17 This is a schematic diagram of installing a spliced flexible photovoltaic module on a building exterior wall, provided by another embodiment of the present application;

[0033] Figure 18 This is a schematic diagram of installing a spliced flexible photovoltaic module on the outer surface of window glass provided by another embodiment of the present application;

[0034] Figure 19 This is a circuit structure diagram of a photovoltaic protection and management circuit connecting a spliced flexible photovoltaic module and an energy storage device provided in another embodiment of the present application.

[0035] The following are the descriptions of the reference numerals:

[0036] 1. First photovoltaic power generation unit; 1-1. Crystalline silicon cell; 1-2. Interconnection welding ribbon; 1-3. Bus welding ribbon; 1-4. Flexible package; 1-5. Positive terminal; 1-6. First negative plug; 2. Second photovoltaic power generation unit; 2-1. First positive plug; 2-2. Second negative plug; 3. Third photovoltaic power generation unit; 3-1. Second positive plug; 3-2. Third negative plug; 4. Fourth photovoltaic power generation unit; 4-1. Third positive plug; 4-2. Fourth negative plug; 5. Fifth photovoltaic power generation unit; 5-1. Fourth positive plug; 5-2. First negative terminal; 6. Sixth photovoltaic power generation unit; 6-1. Fifth positive plug; 6-2. Second negative terminal; 7. Seventh photovoltaic power generation unit; 7-1. Sixth positive plug; 7-2. Third negative terminal; 8. Fixing plate; 9. Magnet; 10. Pressure Connector; 10-1, base; 10-1-1, groove; 10-1-2, boss; 10-1-3, mounting hole; 10-1-4, second bolt hole; 10-2, buckle cover; 10-2-1, first buckle plate; 10-2-2, second buckle plate; 10-2-3, through hole; 10-2-4, first bolt hole; 10-3, machine screw; 10-4, expansion bolt; 11, building exterior wall; 12, building window glass exterior surface; 13, structural adhesive; 14, spliced flexible photovoltaic module; 15-1, first DC fuse; 15-2, second DC fuse; 16-1, first MPPT controller; 16-2, second MPPT controller; 17-1, first diode; 17-2, second diode; 18, LED smart display; 19, DC surge protection device; 20, DC circuit breaker; 21, energy storage equipment. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In an exemplary embodiment, the present application provides a spliced flexible photovoltaic component structure, which includes: a spliced flexible photovoltaic component 14 and a component fixing device, wherein the spliced flexible photovoltaic component 14 is formed by splicing multiple photovoltaic power generation units to form a set geometric shape, and the spliced flexible photovoltaic component 14 is fixed on the surface to be installed based on the component fixing device, and is connected to the energy storage device 21 through a photovoltaic protection and management circuit.

[0042] This application forms flexible photovoltaic modules of different geometric shapes through the flexible splicing of multiple photovoltaic power generation units, which not only improves the space utilization efficiency of the photovoltaic modules, but also enhances the applicability, and can adjust the size of the modules according to specific needs, reducing material waste.

[0043] In another exemplary embodiment, the plurality of photovoltaic power generation units include Figure 1 The first photovoltaic power generation unit 1 shown, Figure 2 The second photovoltaic power generation unit 2 shown, Figure 3 The third photovoltaic power generation unit 3 shown, Figure 4 The fourth photovoltaic power generation unit 4 shown, Figure 5 The fifth photovoltaic power generation unit 5 shown, Figure 6 The sixth photovoltaic power generation unit 6 shown and Figure 7 The seventh photovoltaic power generation unit 7 is shown. The structures of the first to seventh photovoltaic power generation units are the same. Taking the first photovoltaic power generation unit 1 as an example, it includes a crystalline silicon cell 1-1, and the crystalline silicon cell 1-1 is encapsulated by a flexible encapsulation body 1-4. The specific encapsulation process is as follows:

[0044] Step 1: Select a suitable flexible material as the substrate, such as PET (polyester film), PVC (polyvinyl chloride), etc. with good flexibility and weather resistance.

[0045] Step 2: Evenly apply a layer of packaging material on the flexible substrate. Commonly used packaging materials include EVA (ethylene-vinyl acetate copolymer), POE (polyolefin elastomer) or other types of thermoplastic polymers. These materials will melt at high temperatures and form a good bond with the crystalline silicon cell.

[0046] Step 3: Place the crystalline silicon cells on the coated flexible substrate according to the pre-designed position and ensure electrical connection between the cells (such as welding copper foil strips or conductive wires).

[0047] Step 4: Cover the crystalline silicon cell with another layer of packaging material, and place the entire assembly into a laminator for heating and pressurizing to fully melt and solidify the packaging material to form a whole.

[0048] Step 5: After lamination, the assembly is cooled to allow the encapsulation material to fully solidify to protect the cells and ensure the flexibility of the assembly.

[0049] Step 6: Seal the edges of the packaged components with waterproof tape or special sealing materials to prevent moisture and other contaminants from entering the components.

[0050] In addition, the edge side of the crystalline silicon cell 1-1 is provided with a busbar 1-3 formed by leading out the internal interconnection welding ribbon 1-2, and the busbar 1-3 is provided with a wiring port and / or a plug. Specifically, the busbar located on one edge side of the first photovoltaic power generation unit 1 is provided with a positive wiring port 1-5 (for external power supply positive pole), and the busbar on the corresponding edge side is provided with a first negative plug 1-6; the busbar located on one edge side of the second photovoltaic power generation unit 2 is provided with a first positive plug 2-1, and the busbar on the corresponding edge side is provided with a second negative plug 2-2; the busbar located on one edge side of the third photovoltaic power generation unit 3 is provided with a second positive plug 3-1, and the busbar on the adjacent edge side is provided with a third negative plug 3-2; the busbar located on the fourth photovoltaic power generation unit 4 is provided with a positive wiring port 1-5 (for external power supply positive pole), and the busbar on the corresponding edge side is provided with a first negative plug 1-6; A third positive plug 4-1 is provided on the busbar strip on one edge side, and a fourth negative plug 4-2 is provided on the busbar strip on the adjacent edge side; a fourth positive plug 5-1 is provided on the busbar strip on one edge side of the fifth photovoltaic power generation unit 5, and a first negative wiring port 5-1 (similarly, used for the negative pole of an external power supply) is provided on the busbar strip on the corresponding edge side; a fifth positive plug 6-1 is provided on the busbar strip on one edge side of the sixth photovoltaic power generation unit 6, and a second negative wiring port 6-2 (similarly, used for the negative pole of an external power supply) is provided on the busbar strip on the corresponding edge side; a sixth positive plug 7-1 is provided on the busbar strip on one edge side of the seventh photovoltaic power generation unit 7, and a third negative wiring port 7-2 (similarly, used for the negative pole of an external power supply) is provided on the busbar strip on the corresponding edge side.

[0051] Furthermore, the present application can select any number of photovoltaic power generation units from the first to seventh photovoltaic power generation units described above to splice into photovoltaic modules with different shapes. For example, the first, second, third and seventh photovoltaic power generation units can be selected to be spliced as follows: Figure 8 The rectangular photovoltaic assembly shown in FIG. 8 includes one first photovoltaic power generation unit 1, seven second photovoltaic power generation units 2, three third photovoltaic power generation units 3, and one seventh photovoltaic power generation unit 7. The specific splicing process of the rectangular photovoltaic assembly is as follows:

[0052] Connect the positive connection port of the first photovoltaic power generation unit to the positive pole of the external power supply, and plug the negative plug of the first photovoltaic power generation unit into the positive plug of the first second photovoltaic power generation unit;

[0053] Plug the negative plug of the first second photovoltaic power generation unit into the positive plug of the second second photovoltaic power generation unit;

[0054] Plug the negative plug of the second second photovoltaic power generation unit into the positive plug of the third second photovoltaic power generation unit;

[0055] Plug the negative plug of the third second photovoltaic power generation unit into the positive plug of the first third photovoltaic power generation unit;

[0056] Plug the negative plug of the first third photovoltaic power generation unit into the positive plug of the fourth second photovoltaic power generation unit;

[0057] Plug the negative plug of the fourth second photovoltaic power generation unit into the positive plug of the second third photovoltaic power generation unit;

[0058] Plug the negative plug of the second third photovoltaic power generation unit into the positive plug of the fifth second photovoltaic power generation unit;

[0059] Plug the negative plug of the fifth second photovoltaic power generation unit into the positive plug of the sixth second photovoltaic power generation unit;

[0060] Plug the negative plug of the sixth second photovoltaic power generation unit into the positive plug of the seventh second photovoltaic power generation unit;

[0061] Plug the negative plug of the seventh second photovoltaic power generation unit and the positive plug of the third third photovoltaic power generation unit;

[0062] Plug the negative plug of the third photovoltaic power generation unit into the positive plug of the seventh photovoltaic power generation unit, and connect the third negative connection port of the seventh photovoltaic power generation unit to the negative pole of the external power supply.

[0063] Through the above connection method, you can splice Figure 8 The rectangular photovoltaic module shown.

[0064] Except for Figure 8 In addition to the rectangular photovoltaic modules shown, they can also be spliced into Figure 11 The "8"-shaped photovoltaic assembly shown includes one first photovoltaic power generation unit 1, eleven second photovoltaic power generation units 2, five third photovoltaic power generation units 3, two fourth photovoltaic power generation units 4, and one seventh photovoltaic power generation unit 7. The specific splicing process is as follows:

[0065] Connect the positive connection port of the first photovoltaic power generation unit to the positive pole of the external power supply, and plug the negative plug of the first photovoltaic power generation unit into the positive plug of the first second photovoltaic power generation unit;

[0066] Plug the negative plug of the first second photovoltaic power generation unit into the positive plug of the second second photovoltaic power generation unit;

[0067] Plug the negative plug of the second second photovoltaic power generation unit into the positive plug of the first third photovoltaic power generation unit;

[0068] Plug the negative plug of the first third photovoltaic power generation unit into the positive plug of the third second photovoltaic power generation unit;

[0069] Plug the negative plug of the third second photovoltaic power generation unit into the positive plug of the first fourth photovoltaic power generation unit;

[0070] Connect the negative plug of the first fourth photovoltaic power generation unit to the positive plug of the fourth second photovoltaic power generation unit;

[0071] Plug the negative plug of the fourth second photovoltaic power generation unit into the positive plug of the second third photovoltaic power generation unit;

[0072] Plug the negative plug of the second third photovoltaic power generation unit into the positive plug of the fifth second photovoltaic power generation unit;

[0073] Plug the negative plug of the fifth second photovoltaic power generation unit into the positive plug of the sixth second photovoltaic power generation unit;

[0074] Plug the negative plug of the sixth second photovoltaic power generation unit into the positive plug of the third third photovoltaic power generation unit;

[0075] Plug the negative plug of the third photovoltaic power generation unit into the positive plug of the seventh second photovoltaic power generation unit;

[0076] Plug the negative plug of the seventh second photovoltaic power generation unit into the positive plug of the eighth second photovoltaic power generation unit;

[0077] Plug the negative plug of the eighth second photovoltaic power generation unit into the positive plug of the fourth third photovoltaic power generation unit;

[0078] Plug the negative plug of the fourth third photovoltaic power generation unit into the positive plug of the ninth second photovoltaic power generation unit;

[0079] Plug the negative plug of the ninth second photovoltaic power generation unit into the positive plug of the tenth second photovoltaic power generation unit;

[0080] Plug the negative plug of the tenth second photovoltaic power generation unit into the positive plug of the fifth third photovoltaic power generation unit;

[0081] The negative plug of the fifth third photovoltaic power generation unit is connected to the positive plug of the eleventh second photovoltaic power generation unit;

[0082] Plug the negative plug of the eleventh second photovoltaic power generation unit into the positive plug of the seventh photovoltaic power generation unit, and simultaneously connect the third negative connection port of the seventh photovoltaic power generation unit to the negative pole of the external power supply.

[0083] It should be noted that the rectangular photovoltaic modules and the "8"-shaped photovoltaic modules shown above are only exemplary. The present application can obtain spliced flexible photovoltaic modules of various geometric shapes by splicing any of the first to seventh photovoltaic power generation units.

[0084] Compared with the application limitations of traditional flexible photovoltaic modules due to their fixed size and shape, this application can achieve the following significance and technical effects by splicing photovoltaic power generation units:

[0085] 1. Improve application flexibility: By allowing users to change the shape and size of photovoltaic modules according to actual needs, the application flexibility of photovoltaic modules can be improved, so that photovoltaic modules can not only adapt to various building surfaces, but also be customized for installation environments under different lighting conditions.

[0086] 2. Enhanced scalability: Since photovoltaic power generation units can be flexibly spliced, users can easily expand the system scale according to changes in power demand without having to replace the entire component.

[0087] 3. Optimize space utilization: Better utilize limited space resources and achieve efficient energy harvesting even on irregular surfaces.

[0088] 4. Improve aesthetics: Unlike traditional fixed-shape photovoltaic panels, the customizable geometric shape splicing method allows operators to consider energy output while also taking into account the design sense of the building's appearance, thereby improving the overall aesthetics.

[0089] 5. Reduced waste: Since the component size can be adjusted according to specific needs, the material waste caused by inappropriate size is reduced.

[0090] In another exemplary embodiment, the assembly fixing device includes: a fixing plate 8, a magnet 9 and a crimping member 10, wherein the spliced flexible photovoltaic assembly 14 is arranged on the front of the fixing plate 8, and the magnet 9 is correspondingly adsorbed on the spliced flexible photovoltaic assembly 14 and the back of the fixing plate 8 (such as Figure 14 As shown), the crimping piece 10 is arranged on the edge side of the fixing plate 8.

[0091] In this embodiment, through the attraction between the correspondingly arranged magnets 9, the spliced flexible photovoltaic component 14 can be firmly adsorbed on the fixed plate 8 while maintaining the flexibility of easy disassembly and assembly, so that users can change the shape and size of the spliced flexible photovoltaic component 14 according to their needs.

[0092] It should be noted that the fixing plate 8 can be made of any one of transparent endurance plates, metal plates (such as aluminum alloy), plastic plates (such as polycarbonate PC plates, ABS plates, etc.) and composite material plates.

[0093] It should also be noted that the shape of the fixing plate 8 matches the shape of the spliced flexible photovoltaic assembly 14. When the photovoltaic power generation units are spliced into a rectangular photovoltaic assembly, the fixing plate 8 is formed as follows: Figure 9 The rectangular fixing plate shown in FIG. 8 is combined with the rectangular photovoltaic module and the rectangular fixing plate 8 to obtain the following Figure 10 When the photovoltaic power generation units are spliced into an 8-shaped photovoltaic module, the fixing plate 8 is as follows: Figure 12 The 8-shaped fixing plate 8 shown in the figure can be combined with the 8-shaped photovoltaic module and the 8-shaped fixing plate 8 to obtain the following Figure 13 The 8-shaped flexible photovoltaic module structure shown.

[0094] In another exemplary embodiment, Figure 15 and Figure 16 As shown, the crimping member 10 includes a base 10 - 1 and a buckle cover 10 - 2 , and the base 10 - 1 and the buckle cover 10 - 2 match each other.

[0095] In this embodiment, the base 10-1 is stepped, and the base 10-1 includes a groove 10-1-1 and a boss 10-1-2. The groove 10-1-1 and the boss 10-1-2 are integrally formed, wherein the groove 10-1-1 is provided with a mounting hole 10-1-3; the buckle cover 10-2 includes a first buckle plate 10-2-1 and a second buckle plate 10-2-2. The first buckle plate 10-2-1 and the second buckle plate 10-2-2 are integrally formed. The second buckle plate 10-2-2 is formed with a through hole 10-2-3, the second buckle plate 10-2-2 matches the groove 10-1-1, and the through hole 10-2-3 corresponds to the mounting hole 10-1-3; the first buckle plate 10-2-1 matches the boss 10-1-2, and a gap is formed between the first buckle plate 10-2-1 and the boss 10-1-2, and the edge side of the fixing plate 8 is located in the gap.

[0096] When it is necessary to install the crimping part 10 on the edge side of the fixed plate 8, first place the base 10-1 on the lower end surface of the edge side of the fixed plate 8, so that the boss 10-1-2 fits with the lower end surface of the fixed plate 8; then, place the buckle cover 10-2 on the upper end surface of the edge side of the fixed plate 8, ensuring that the first buckle plate 10-2-1 fits with the upper end surface of the edge side of the fixed plate 8 while keeping the through hole 10-2-3 on the second buckle plate 10-2-2 and the mounting hole 10-1-3 on the groove 10-1-1 aligned; finally, insert the machine screw 10-3 into the aligned through hole 10-2-3 and the mounting hole 10-1-3 and tighten it, thereby completing the assembly of the base 10-1 and the buckle cover 10-2, and realizing the crimping of the fixed plate 8.

[0097] In this embodiment, the crimping part 10 adopts a modular design (i.e., the base 10-1 and the buckle cover 10-2 are detachable). During installation, it is only necessary to place the base 10-1 on the lower end surface of the edge side of the fixed plate 8, place the buckle cover 10-2 on the upper end surface of the edge side of the fixed plate 8, align the holes and fix it with the machine screws 10-3 to complete the installation, thereby simplifying the installation process. In addition, the structural design of the crimping part 10 can protect the fixed plate 8 from damage during the installation process, especially by clamping the edge of the fixed plate 8 through the gap formed by the second buckle plate 10-2-2 and the boss 10-1-2, thereby avoiding possible damage to the plate caused by direct force. Furthermore, the distance of the gap between the boss 10-1-2 and the second buckle plate 10-2-2 can be adjusted by adjusting the tightness of the machine screws 10-3. Therefore, the crimping part 10 can adapt to fixed plates 8 of different thicknesses, and therefore has good applicability and can be applied to plates of different specifications.

[0098] It should be noted that a first bolt hole 10-2-4 is provided on the second gusset plate 10-2-2, and a second bolt hole 10-1-4 is also provided on the groove 10-1-1. The first bolt hole 10-2-4 and the second bolt hole 10-1-4 are provided correspondingly. When the assembled photovoltaic module needs to be installed on the exterior wall of the building, the photovoltaic module can be fixed on the exterior wall of the building 11 by sequentially passing the expansion bolt 10-4 through the first bolt hole 10-2-4 and the second bolt hole 10-1-4 and driving it into the exterior wall of the building (such as Figure 17 In addition, if the photovoltaic module needs to be installed on the outer surface 12 of the building window glass, it is only necessary to evenly apply the structural adhesive 13 on the lower surface of the base 10-1 (as shown). Figure 18 shown).

[0099] Figure 19is a schematic diagram of the circuit structure of a photovoltaic protection and management circuit provided by another exemplary embodiment of the present application, wherein the photovoltaic protection and management circuit is used to transmit the direct current generated by the spliced flexible photovoltaic assembly 13 to the energy storage device 20, such as Figure 19 As shown, the photovoltaic protection and management circuit includes a first branch, a second branch and a third branch, the first branch includes a first DC fuse 15-1, a first MPPT controller 16-1 and a first diode 17-1 connected in sequence, wherein the input end of the first DC fuse 15-1 is connected to the negative end of the spliced flexible photovoltaic assembly 14, the output end of the first DC fuse 15-1 is connected to the input end of the first MPPT controller 16-1, the output end of the first MPPT controller 16-1 is connected to the anode of the first diode 17-1, and the cathode of the first diode 17-1 is connected to the bus node N.

[0100] The second branch includes an LED smart display 18, a second DC fuse 15-2, a second MPPT controller 16-2 and a second diode 17-2 connected in sequence, wherein the input end of the LED smart display 18 is connected to the positive end of the spliced flexible photovoltaic assembly 14, the output end of the LED smart display 18 is connected to the input end of the second DC fuse 15-2, the output end of the second DC fuse 15-2 is connected to the input end of the second MPPT controller 16-2, the output end of the second MPPT controller 16-2 is connected to the anode of the second diode 17-2, and the cathode of the second diode 17-2 is connected to the bus node N.

[0101] The third branch includes a DC surge protector 19 and a DC circuit breaker 20, wherein the input end of the DC surge protector 19 is connected to the bus node N, the output end of the DC surge protector 19 is connected to the ground terminal GND, the input end of the DC circuit breaker 20 is connected to the bus node N, and the output end of the DC circuit breaker 20 is connected to the energy storage device 21.

[0102] Below, this application describes in detail the working principle of the photovoltaic protection and management circuit:

[0103] The DC power generated by the spliced flexible photovoltaic assembly 14 is output from the positive and negative terminals, respectively. After being output from the positive terminal, the DC power first passes through the LED intelligent display 18 to display the operating status of the spliced flexible photovoltaic assembly 14. The DC power then passes through the second DC fuse 15-2, which provides overload protection for the photovoltaic protection and management circuit. Specifically, when the DC power exceeds a predetermined value, the second DC fuse 15-2 automatically disconnects the circuit, preventing damage to the second MPPT controller 16-2 and the second diode 17-2 due to excessive DC current. After passing through the second DC fuse 15-2, the DC power enters the first MPPT controller 16-2. The second MPPT controller 16-2 continuously adjusts the load characteristics of the spliced flexible photovoltaic assembly 14 to ensure that the spliced flexible photovoltaic assembly 14 always operates near its maximum power point. Even under poor lighting conditions, the output power of the spliced flexible photovoltaic assembly 14 is maximized, thereby maximizing the efficiency of the spliced flexible photovoltaic assembly 14 in transmitting electrical energy to the energy storage device 21. Finally, the DC power flows into the node A through the second diode 17-2. The provision of the second diode 17-2 prevents DC power from flowing back from the energy storage device 21 into the spliced flexible photovoltaic assembly 14. It should be noted that the reason for preventing the DC power from flowing back is that the spliced flexible photovoltaic assembly 14 generates electricity during the day, but at night or on cloudy days, when there is no sunlight, if the second diode 17-2 is not present to prevent the current from flowing back, the current in the energy storage device 21 may flow back through the spliced flexible photovoltaic assembly 14, which not only wastes electricity but also damages the spliced flexible photovoltaic assembly 14. In addition, when the spliced flexible photovoltaic assembly 14 stops generating electricity, if the current flows back, the energy in the energy storage device 21 will be depleted, resulting in excessive discharge, thereby shortening the service life of the energy storage device 21.

[0104] As for the negative end, the DC power output from the negative end flows into the node A through the first DC fuse 15-1, the first MPPT controller 16-1 and the first diode 17-1 in sequence. It should be noted that the first DC fuse 15-1, the first MPPT controller 16-1 and the first diode 17-1 have the same functions as the second DC fuse 15-2, the second MPPT controller 16-2 and the second diode 17-2 in the circuit, and they will not be repeated here.

[0105] Furthermore, the DC power output from the positive terminal and the negative terminal converges at the convergence node N, thereby forming a centralized power output point for subsequent power management and distribution. In the process of the converged DC power flowing into the energy storage device 21 through the convergence node N, an overload may occur. When an overload occurs, the DC circuit breaker 20 can automatically disconnect the short circuit, thereby preventing the converged DC power from damaging the energy storage device 21 due to excessive current. In addition, in the photovoltaic protection and management circuit, transient overvoltage may occur, such as a voltage surge caused by lightning strikes or circuit failures. By setting the DC surge protector 19, the excess voltage energy can be released or guided to the ground, so that the photovoltaic protection and management circuit is not affected by transient high voltage shocks.

[0106] In summary, the photovoltaic protection and management circuit described in this application comprehensively considers overload protection, anti-reverse charging protection, maximum power point tracking control and surge protection to form a multiple protection mechanism, thereby ensuring that the power transmission between the spliced flexible photovoltaic component 13 and the energy storage device 20 is both efficient and safe.

[0107] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A spliced flexible photovoltaic module structure, characterized in that: The spliced flexible photovoltaic module structure includes: A spliced flexible photovoltaic module (14) and a module fixing device, wherein: The spliced flexible photovoltaic assembly (14) is formed by splicing a plurality of photovoltaic power generation units into a set geometric shape. The spliced flexible photovoltaic component (14) is fixed on the surface to be installed based on the component fixing device, and is connected to the energy storage device (21) through a photovoltaic protection and management circuit.

2. The spliced flexible photovoltaic module structure according to claim 1, characterized in that: The plurality of photovoltaic power generation units include a first photovoltaic power generation unit (1), a second photovoltaic power generation unit (2), a third photovoltaic power generation unit (3), a fourth photovoltaic power generation unit (4), a fifth photovoltaic power generation unit (5), a sixth photovoltaic power generation unit (6) and a seventh photovoltaic power generation unit (7), wherein each photovoltaic power generation unit has the same structure, and each photovoltaic power generation unit includes: A crystalline silicon cell (1-1) is encapsulated by a flexible encapsulation body (1-4); a busbar (1-3) is provided on the edge side of the crystalline silicon cell (1-1), and a connection port and / or a plug is provided on the busbar (1-3).

3. The spliced flexible photovoltaic module structure according to claim 1, characterized in that: The component fixing device comprises: A fixing plate (8), a magnet (9) and a crimping member (10), wherein The spliced flexible photovoltaic assembly (14) is arranged on the front side of the fixed plate (8), the magnet (9) is correspondingly adsorbed on the spliced flexible photovoltaic assembly (14) and the back side of the fixed plate (8), and the crimping piece (10) is arranged on the edge side of the fixed plate (8).

4. The spliced flexible photovoltaic module structure according to claim 3, characterized in that: The crimping piece (10) comprises: A base (10-1) and a buckle cover (10-2), wherein the base (10-1) and the buckle cover (10-2) match each other.

5. The spliced flexible photovoltaic module structure according to claim 4, characterized in that: The base (10-1) is stepped, and comprises a groove (10-1-1) and a boss (10-1-2), wherein the groove (10-1-1) and the boss (10-1-2) are integrally formed, wherein a mounting hole (10-1-3) is provided on the groove (10-1-1); The buckle cover (10-2) comprises a first buckle plate (10-2-1) and a second buckle plate (10-2-2), wherein the first buckle plate (10-2-1) and the second buckle plate (10-2-2) are integrally formed, a through hole (10-2-3) is provided on the second buckle plate (10-2-2), the second buckle plate (10-2-2) matches the groove (10-1-1), and the through hole (10-2-3) corresponds to the mounting hole (10-1-3); the first buckle plate (10-2-1) matches the boss (10-1-2), and a gap is formed between the first buckle plate (10-2-1) and the boss (10-1-2), and the edge side of the fixing plate (8) is located in the gap.

6. The spliced flexible photovoltaic module structure according to claim 3, characterized in that: The fixing plate (8) comprises any one of the following: a transparent polycarbonate plate, a metal plate, a plastic plate, and a composite material plate.

7. The spliced flexible photovoltaic module structure according to claim 1, characterized in that: The photovoltaic protection and management circuit includes: The first branch, the second branch and the third branch, among which, The first end of the first branch is connected to the negative terminal of the spliced flexible photovoltaic assembly (14), and the second end of the first branch is connected to the first end of the third branch to form a confluence node; The first end of the second branch is connected to the positive terminal of the spliced flexible photovoltaic assembly (14), and the second end of the second branch is connected to the busbar node; The second end of the third branch is connected to the energy storage device (21).

8. The spliced flexible photovoltaic module structure according to claim 7, characterized in that: The first branch includes: A first DC fuse (15-1), a first MPPT controller (16-1) and a first diode (17-1) are connected in sequence, wherein the input end of the first DC fuse (15-1) is connected to the negative terminal of the spliced flexible photovoltaic assembly (14), the output end of the first DC fuse (15-1) is connected to the input end of the first MPPT controller (16-1), the output end of the first MPPT controller (16-1) is connected to the anode of the first diode (17-1), and the cathode of the first diode (17-1) is connected to a bus node.

9. The spliced flexible photovoltaic module structure according to claim 7, characterized in that: The second branch includes: An LED intelligent display (18), a second DC fuse (15-2), a second MPPT controller (16-2) and a second diode (17-2) are connected in sequence, wherein the input end of the LED intelligent display (18) is connected to the positive terminal of the spliced flexible photovoltaic assembly (14), the output end of the LED intelligent display (18) is connected to the input end of the second DC fuse (15-2), the output end of the second DC fuse (15-2) is connected to the input end of the second MPPT controller (16-2), the output end of the second MPPT controller (16-2) is connected to the anode of the second diode (17-2), and the cathode of the second diode (17-2) is connected to the bus node.

10. The spliced flexible photovoltaic module structure according to claim 7, characterized in that: The third branch includes: A DC surge protector (19) and a DC circuit breaker (20), wherein: The input end of the DC surge protector (19) is connected to the bus node, and the output end of the DC surge protector (19) is grounded; the input end of the DC circuit breaker (20) is connected to the bus node, and the output end of the DC circuit breaker (20) is connected to the energy storage device (21).

Images