Film attaching apparatus

Abstract

The application discloses a film pasting device. According to the application, first, a photovoltaic module is fixed to one side of the film pasting device. Then, the first and second film pasting mechanisms start to work, and the incoming end of the insulation film is pulled by the pasting assembly and continuously fed to the film-pasting surface of the photovoltaic module. At the same time, the bottom plate is driven to move along the length direction of the film-pasting surface, and the film pasting mechanism is driven to move synchronously, so that the insulation film is continuously and uniformly pasted to the circumferential side. The pasting assembly applies a force to the non-adhesive surface of the insulation film, so that the adhesive surface is firmly pasted. Then, the shaping assembly fully presses the part of the insulation film which is higher than the upper surface and / or lower than the lower surface of the photovoltaic module, so that the part is bent, the bent part is tightly pasted to the upper and lower surfaces of the module, and the side is completely covered. Through the efficient cooperation of the pasting and shaping assemblies, the uniformity and firmness of the film pasting are ensured, and the film pasting quality and production efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic manufacturing equipment technology, and in particular to a film application device. Background Technology

[0002] A certain distance must be maintained between the metal frame of the photovoltaic module and the busbar at the end of the internal battery string. This distance is called the creepage distance, which is defined as the minimum distance between the busbar at the end of the battery string and the metal frame to prevent leakage.

[0003] Due to creepage distance, a large gap needs to be left at the edges of photovoltaic modules, reducing space utilization. Research has found that attaching an insulating film around the photovoltaic modules can effectively reduce the required creepage distance. However, the industry currently relies on manual film application, resulting in uneven film application quality and low production efficiency. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a film-applying device to solve the problems of uneven overall film-applying quality and low production efficiency in current photovoltaic modules.

[0005] This application provides a film-applying device, including a base plate, a first film-applying mechanism, and a second film-applying mechanism; the base plate can be driven to move along the length direction of the surface of the photovoltaic module to be covered with film; the second film-applying mechanism and the first film-applying mechanism are arranged sequentially on the base plate along the moving direction of the base plate; the first film-applying mechanism includes an attachment component, which is configured to pull the incoming end of the insulating film and attach the adhesive side of the insulating film to the surface of the photovoltaic module to be covered with film; the second film-applying mechanism also includes a shaping component, which is disposed after the shaping component attachment component; the shaping component includes a fixing frame and an upper... The forming wheel and the lower forming wheel are slidably mounted on the base plate via a fixing seat, and the fixing seat is elastically installed on the fixing seat in a direction perpendicular to the surface of the photovoltaic module to be coated with film. The upper forming wheel and the lower forming wheel are arranged at intervals relative to each other in the vertical direction and are elastically installed on the fixing seat, so that they can press against the upper and lower surfaces of the photovoltaic module respectively after being subjected to external force, so that the part of the insulating film that is higher than the upper surface of the photovoltaic module and / or the part of the insulating film that is lower than the lower surface of the photovoltaic module bends towards the photovoltaic module, and the bent part is attached to the upper surface and / or the lower surface of the photovoltaic module.

[0006] Based on the aforementioned film-applying device, before applying the insulating film around the photovoltaic module, the photovoltaic module is first fixed to one side of the film-applying device. Then, the first and second film-applying mechanisms begin operation, attaching the insulating film to the periphery of the photovoltaic module. During the film-applying process, the applying component first pulls the infeed end of the insulating film, continuously conveying it to the surface of the photovoltaic module to be covered. Simultaneously, the base plate is driven to move along the length of the surface to be covered, causing the first and second film-applying mechanisms to move synchronously, thereby continuously and evenly attaching the insulating film to the surface. The applying component applies force to the non-adhesive side of the insulating film to ensure that its adhesive side is firmly attached to the photovoltaic module. Subsequently, the shaping component located after the applying component fully presses the portion of the insulating film above the upper surface of the photovoltaic module and / or the portion below the lower surface of the photovoltaic module, thereby bending it so that the bent portion is tightly attached to the upper and / or lower surfaces of the photovoltaic module, ultimately completing the complete coverage of the sides of the photovoltaic module. Compared to existing technologies, this application moves the entire film-applying device by driving the base plate, rather than moving the photovoltaic modules themselves. This design significantly reduces the space required for film application and improves the adaptability of the film-applying device to photovoltaic modules of different specifications. Furthermore, the efficient collaboration between the applying and shaping of the modules ensures the uniformity and firmness of the insulating film application, effectively improving the overall film-applying quality and production efficiency.

[0007] Optionally, the first film-applying mechanism further includes an intermittent component disposed after the application component; the intermittent component includes a clamping member and a cutting member, which are arranged sequentially along the moving direction of the base plate; the cutting member is configured to cut the insulating film after a preset length of insulating film is applied to the current film-to-be-applied surface; the clamping member is configured to clamp the insulating film while the cutting member is cutting the insulating film, and to release the insulating film after the insulating film is applied to the next film-to-be-applied surface.

[0008] By setting up the aforementioned intermittent components, the insulating film can be cut in time by the cutting component after the film is applied to one side of the photovoltaic module, and the insulating film can be kept at the application point of the module by the clamping component, thereby facilitating the application of film to the next photovoltaic module.

[0009] Optionally, the clamping member includes a first clamping part, a second clamping part, and a first driving member; the first clamping part and the second clamping part are arranged sequentially along a direction away from the photovoltaic module to be coated with film, and the first clamping part has a clearance gap configured to allow the photovoltaic module with insulating film to pass through; the first clamping part is slidably disposed on the base plate via a base, and the base slides along a direction perpendicular to the surface to be coated with film, so as to approach or move away from the surface to be coated with film of the photovoltaic module; the first driving member is configured to drive the first clamping part to approach or move away from the second clamping part, so that the insulating film is clamped or released.

[0010] Based on the specific structure of the clamping component described above, the contact area with the adhesive side of the insulating film can be reduced, thereby facilitating the clamping of the insulating film while also facilitating the rapid separation of the clamping component from the insulating film.

[0011] Optionally, the first film application mechanism further includes a first hot film assembly. The first hot film assembly is located in front of the second film application mechanism. The first hot film assembly includes a mounting base and a first heating wheel mounted on the mounting base. The mounting base is slidably mounted on the base plate to drive the first heating wheel to approach or move away from the film surface of the photovoltaic module to be applied, so that the first heating wheel can make thermal contact with the insulating film on the film surface to be applied.

[0012] Based on the first thermal film component described above, the adhesion between the insulating film and the photovoltaic module is improved by heating the insulating film.

[0013] Optionally, the first thermal film assembly also includes a first hot air duct, with the hot air outlet of the first hot air duct facing the film surface of the photovoltaic module to be coated.

[0014] Based on the aforementioned first hot air duct, air can be blown to heat the insulating film, facilitating subsequent shaping.

[0015] Optionally, the second film application mechanism includes a shaping component located in front of the shaping component. The shaping component is configured to bend the portion of the insulating film that is above the upper surface of the photovoltaic module and / or the portion of the insulating film that is below the lower surface of the photovoltaic module toward the photovoltaic module, and to attach the bent portion to the upper surface and / or lower surface of the photovoltaic module.

[0016] Based on the above-mentioned shaping component, the portion of the insulating film to be bent can be bent in advance and initially attached to the upper and / or lower surface of the photovoltaic module, so that the subsequent shaping component can perform a second bend on the corresponding bent portion, thereby ensuring the bending effect of the corresponding bent portion, thereby achieving sufficient plasticity of the corresponding bent portion, so that the portion to be bent can be tightly attached to the upper and / or lower surface of the photovoltaic module.

[0017] Optionally, the shaping assembly includes a base and at least two shaping wheels. The base is slidably disposed on a bottom plate and is configured to be close to or away from the film surface to be applied to the photovoltaic module. Each shaping wheel is elastically mounted on the base in a direction perpendicular to the film surface to be applied to the photovoltaic module. Each shaping wheel has a receiving space for accommodating the frame of the photovoltaic module, and the receiving space of each shaping wheel gradually increases along the moving direction of the bottom plate to gradually bend the insulating film.

[0018] Based on the specific structure of the above-mentioned shaping component, the insulating film is gradually bent by setting multiple shaping wheels to ensure that the bending surface of the insulating film is fully bent; through the elastic connection between each shaping wheel and the base, each shaping wheel can automatically attach to the side of the photovoltaic module.

[0019] Optionally, the shaping wheel is elastically mounted on the base via a first mounting bracket, and the shaping wheel is elastically mounted on the first mounting bracket in the vertical direction.

[0020] The shaping wheel, which is installed elastically in a vertical direction, allows the insulating film on the upper and lower surfaces of the photovoltaic module to be pressed tightly, thus improving the adhesion effect.

[0021] Optionally, the shaping assembly includes a roller that is elastically mounted on the base in a direction perpendicular to the surface of the photovoltaic module to be coated; wherein the roller is positioned between two adjacent shaping rollers along the direction of movement of the base plate.

[0022] Based on the aforementioned roller, the vertical surface of the insulating film can be further pressed to ensure the adhesion between the insulating film and the photovoltaic module.

[0023] Optionally, at least one pair of shaping wheels is provided with a second hot air duct between them; and / or, at least one end of the shaping assembly along the direction of movement of the base plate is provided with a second hot air duct; wherein the outlet of the second hot air duct faces away from the center of the base plate.

[0024] Based on the aforementioned second hot air duct, the insulating film is further softened to improve the adhesion between the insulating film and the photovoltaic module.

[0025] Optionally, the second film application mechanism further includes a second hot film assembly, which is disposed after the shaping assembly. The second hot film assembly includes a first heating part and a second heating part arranged in a vertical direction. The first heating part and the second heating part are configured to heat the insulating film attached to the upper and lower surfaces of the photovoltaic module, respectively.

[0026] Based on the aforementioned second thermal film module, the two bending surfaces of the insulating film are further softened to improve the adhesion between the bending surfaces of the insulating film and the photovoltaic module.

[0027] Optionally, the second film application mechanism also includes a cooling element, which is located below the shaping component and has a cold air outlet on the side of the cooling element facing the photovoltaic module.

[0028] Based on the aforementioned cooling components, the cooling of the insulating film is accelerated, thereby shortening the molding time of the insulating film and improving molding efficiency.

[0029] Optionally, the film-applying device further includes a heat-pressing mechanism mounted on the base plate, located after the second film-applying mechanism; the heat-pressing mechanism includes a first adjustment component, a second adjustment component, and a heat-pressing component; the heat-pressing component is mounted on the second adjustment component, and the second adjustment component is mounted on the base plate via the first adjustment component; the first adjustment component is configured to drive the second adjustment component and the heat-pressing component to move along a first direction, and the second adjustment component is configured to drive the heat-pressing component to move along a second direction; wherein, the first direction is perpendicular to the film-applied surface of the photovoltaic module, and the second direction is the first direction and the film-applied surface. The angle bisector direction in the length direction; the heating element includes a second mounting frame and an eighth driving component; the second mounting frame is provided with a first heating element, an intermediate heating element and a second heating element in sequence along the vertical direction; the eighth driving component is configured to drive the first heating element and the second heating element to move in the vertical direction, so that the first heating element is in one-to-one contact with the upper surface of the photovoltaic module and the second heating element is in one-to-one contact with the lower surface of the photovoltaic module; the portion of the intermediate heating element facing the photovoltaic module is provided with a first heating surface and a second heating surface that intersect at a preset angle, so as to be in one-to-one contact with the two sides adjacent to the photovoltaic module.

[0030] Based on the above-mentioned hot-heating mechanism, the two vertical surfaces and the upper and lower surfaces of the insulating film at the corners can be fully heated and softened, thereby ensuring the adhesion effect of the insulating film at the corners of the photovoltaic module.

[0031] Optionally, one of the first heating element and the second heating element is fixedly connected to the driving end of the eighth driving element, and the other is fixedly connected to the fixed end of the eighth driving element.

[0032] Optionally, the film application device further includes a feeding mechanism, which includes a punching assembly, a feeding roller, a first transition roller group, and a second transition roller group. The punching assembly is disposed between the first and second transition roller groups along the traction direction of the insulating film. The punching assembly includes a second drive member, an upper die, and a lower die. One of the upper and lower dies is a concave die, and the other is a convex die that cooperates with the concave die. One of the upper and lower dies can be driven by the second drive member to move closer to or further away from the other. The feeding roller is configured to wind the insulating film. The first transition roller group is configured to traction the insulating film in the height direction and traction the insulating film to the second transition roller group. The second transition roller is configured to traction the insulating film in the horizontal direction and traction the insulating film to the application assembly.

[0033] Based on the aforementioned feeding mechanism, the insulating film can be cut at a designated position by the punching component, so that the insulating film can be continuously attached to two adjacent vertical surfaces of the photovoltaic module, with only a small section attached to one of the vertical surfaces, to ensure the covering effect of the insulating film on the corners of the photovoltaic module; at the same time, it also avoids the insulating film from being attached to a bend on the horizontal surface, thereby reducing the possibility of the insulating film bulging.

[0034] Optionally, a film clamping mechanism is provided along the traction path of the second transition roller group, and the film clamping mechanism is configured to clamp the insulating film under a preset condition.

[0035] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0036] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings are used to denote similar components, wherein: Figure 1 This is a schematic diagram of the structure of a film-applying device according to one embodiment of this application; Figure 2 This is a schematic diagram of the structure of the first film-applying mechanism according to one embodiment of this application; Figure 3 This is a schematic diagram of the structure of a first thermal film assembly according to one embodiment of this application; Figure 4 This is a schematic diagram of the structure of a shaping component according to one embodiment of this application; Figure 5 This is a schematic diagram of the shaping component from another perspective of one embodiment of this application; Figure 6 This is a schematic diagram of the structure of a shaping component according to one embodiment of this application; Figure 7 This is a schematic diagram of the feeding mechanism according to one embodiment of this application; Figure 8 This is a schematic diagram of the cutting and bending unfolding of an insulating film according to one embodiment of this application; Figure 9 This is a schematic diagram of the hot-heating mechanism according to one embodiment of this application.

[0037] Figure label: 1. Base plate; 11. Bearing roller assembly; 2. First film application mechanism; 21. Application component; 211. Application wheel; 212. First connecting seat; 213. Third driving component; 22. Intermittent component; 221. Clamping component; 2211. First clamping part; 22111. Clearance gap; 2212. Second clamping part; 22121. Second connecting seat; 22122. Second wheel body; 2213. First driving component; 2214. Base; 222. Cutting component; 2221. Fourth driving component; 2222. Scissors; 23. First heating film assembly; 231. Mounting seat; 232. First heating wheel; 233. Fifth driving component; 3. Second film application mechanism; 31. Shaping component; 311. Base; 312. Shaping wheel; 3121. Accommodation space; 313. Sixth driving component; 314. First mounting bracket; 31 5. Roller shaft; 316. Second hot air pipe; 32. Second hot film assembly; 33. Shaping assembly; 331. Fixing frame; 332. Upper shaping wheel; 333. Lower shaping wheel; 334. Seventh driving component; 335. Fixing seat; 34. Cooling component; 4. Feeding mechanism; 41. Punching assembly; 411. Second driving component; 412. Upper mold; 413. Lower mold; 42. Feeding roller; 43. First transition roller group; 44. Second transition roller group; 5. Film clamping mechanism; 6. Recycling roller group; 7. Recycling roller; 8. Stamping mechanism; 81. First adjustment assembly; 82. Second adjustment assembly; 83. Stamping assembly; 831. Second mounting frame; 832. Eighth driving component; 833. First heating component; 834. Intermediate heating component; 8341. First heating surface; 8342. Second heating surface; 835. Second heating component. Detailed Implementation

[0038] Some embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application.

[0039] Currently, the industry generally relies on manual application of film around photovoltaic modules, resulting in uneven film application quality and low production efficiency.

[0040] Therefore, this application creatively proposes a film-applying device, which includes a base plate, a first film-applying mechanism, and a second film-applying mechanism. Before applying the film around the photovoltaic module, the photovoltaic module is first fixed to one side of the film-applying device. Subsequently, the first and second film-applying mechanisms begin to work, applying the insulating film to the periphery of the photovoltaic module. During the film-applying process, the applying mechanism first pulls the feed end of the insulating film, continuously conveying it to the surface of the photovoltaic module to be covered. Simultaneously, the base plate is driven to move along the length of the surface to be covered, causing the first and second film-applying mechanisms to move synchronously, thereby continuously and uniformly applying the insulating film to the surface. The applying mechanism applies force to the non-adhesive side of the insulating film to ensure that its adhesive side is firmly attached to the photovoltaic module. Subsequently, the shaping component, located after the attaching component, presses firmly the portion of the insulating film protruding above the upper surface of the photovoltaic module and / or the portion below the lower surface of the photovoltaic module, thereby bending it. This ensures the bent portion adheres tightly to the upper and / or lower surfaces of the photovoltaic module, ultimately completing the full coverage of the photovoltaic module's sides. Compared to existing technologies, this application moves the entire film-applying device by driving the base plate, rather than moving the photovoltaic module itself. This design significantly reduces the space required for film application and improves the adaptability of the film-applying device to photovoltaic modules of different specifications. Furthermore, the efficient collaboration between the attaching component and the shaping component ensures the uniformity and firmness of the insulating film application, effectively improving the overall film-applying quality and production efficiency.

[0041] The present application will be described in detail below through specific embodiments.

[0042] Reference Figures 1 to 9As shown, this application embodiment provides a film-applying device. The film-applying device includes a base plate 1, a first film-applying mechanism 2, and a second film-applying mechanism 3. The base plate 1 can be driven to move along the length direction of the surface of the photovoltaic module to be covered with film. The second film-applying mechanism 3 and the first film-applying mechanism 2 are sequentially arranged on the base plate 1 along the moving direction of the base plate 1. The first film-applying mechanism 2 includes an attachment component 21, which is configured to pull the incoming end of the insulating film and attach the adhesive side of the insulating film to the surface of the photovoltaic module to be covered with film. The second film-applying mechanism 3 also includes a shaping component 33, which is disposed after the shaping component 31. The shaping component 33 includes a fixing frame 331, an upper shaping wheel 332, and a lower shaping wheel 333. The fixing frame 331 is fixed by... The base 335 is slidably mounted on the base plate 1, and the fixing frame 331 is elastically mounted on the fixing base 335 in a direction perpendicular to the photovoltaic module to be coated with film. The upper shaping wheel 332 and the lower shaping wheel 333 are arranged at intervals in the vertical direction and are elastically mounted on the fixing frame 331 so that they can press against the upper and lower surfaces of the photovoltaic module respectively after being subjected to external force, thereby causing the part of the insulating film above the upper surface of the photovoltaic module and / or the part of the insulating film below the lower surface of the photovoltaic module to bend towards the photovoltaic module and attach the bent part to the upper and / or lower surfaces of the photovoltaic module. The surfaces of the upper shaping wheel 332 and the lower shaping wheel 333 opposite to each other are both frustum surfaces or conical surfaces.

[0043] Reference Figure 1 As shown, the Z direction is the direction of movement of the base plate.

[0044] It should be noted that a support platform can be used to support the photovoltaic modules, and the circumferential dimension of the support platform should generally be smaller than the circumferential dimension of the photovoltaic modules to facilitate the application of film around the perimeter of the modules. The photovoltaic modules can be fixed in place by incorporating devices such as adsorption devices within the support platform, thereby improving the stability of the photovoltaic modules during the film application process. Alternatively, the circumferential dimension of the support platform can be larger than the circumferential dimension of the photovoltaic modules; in this case, simply move the side of the photovoltaic module to be film-applied off the support platform. Furthermore, a clamping structure can be used to clamp the photovoltaic modules to fix them in place, as long as care is taken not to interfere with the side of the photovoltaic module to be film-applied. In other examples, other structures and devices that can fix photovoltaic modules can be used, such as grippers or adsorption plates, to apply film to the photovoltaic modules at single or multiple points, as long as the horizontality of the photovoltaic modules and their stability during the film coating process are maintained.

[0045] It is understood that the device driving the base plate 1 to move can be any driving device capable of linear movement, such as a motor-driven linear motion module installed inside the machine, an AGV trolley operating on the ground, or a crane installed on the roof, as long as it ensures that the film-applying device moves smoothly and linearly along the periphery of the photovoltaic module. In this embodiment, to facilitate operation, reduce the impact on the area below the work space, and improve the stability of the film-applying device during operation, a motor-driven linear motion module is used to drive the base plate 1 to move.

[0046] Specifically, before applying the insulating film around the photovoltaic module, the photovoltaic module is first fixed to one side of the film-applying device. Then, the first film-applying mechanism 2 and the second film-applying mechanism 3 begin operation, attaching the insulating film to the side of one edge of the photovoltaic module. During the film-applying process, the applying component 21 first pulls the infeed end of the insulating film, continuously conveying it to the edge of the photovoltaic module where the film is to be applied. Simultaneously, the base plate 1 is driven to move along the length of the surface to be applied, causing the first film-applying mechanism 2 and the second film-applying mechanism 3 to move synchronously, thereby continuously and evenly applying the insulating film to the surface. The applying component 21 applies force to the non-adhesive side of the insulating film to ensure that its adhesive side is firmly attached to the photovoltaic module. Subsequently, the shaping component 33, located after the applying component 21, fully presses the portion of the insulating film above the upper surface of the photovoltaic module and / or the portion below the lower surface of the photovoltaic module, thereby bending it so that the bent portion is tightly attached to the upper and / or lower surfaces of the photovoltaic module, ultimately completing the complete wrapping of the side of the photovoltaic module. Compared to existing technologies, this application moves the entire film-applying device by driving the base plate 1, rather than moving the photovoltaic modules themselves. This design significantly reduces the space required for film application and improves the adaptability of the film-applying device to photovoltaic modules of different specifications. Furthermore, the efficient collaboration between the applying module 21 and the shaping module 33 ensures the uniformity and firmness of the insulating film application, effectively improving the overall film-applying quality and production efficiency. The photovoltaic modules with the insulating film applied have a smaller creepage distance, improving the space utilization within the module.

[0047] In some examples, refer to Figure 2 As shown, the attachment assembly 21 includes an attachment wheel 211, a first connecting seat 212, and a third driving member 213. The attachment wheel 211 is rotatably mounted on the first connecting seat 212. The first connecting seat 212 is connected to the driving end of the third driving member 213. The third driving member 213 is configured to drive the first connecting seat 212 closer to or further away from the film surface to be attached to the photovoltaic module, so that the side of the attachment wheel 211 can act on the adhesive-free side of the insulating film, thereby pushing the adhesive side of the insulating film to be attached to the film surface to be attached to the photovoltaic module. Since the side of the attachment wheel 211 is a smooth curved surface, the friction between it and the insulating film can be greatly reduced, making the film attachment process smoother and more stable.

[0048] In this embodiment, components that need to move or specifically slide, such as the attachment wheel 211, are connected to the corresponding fixed surface (such as the base plate 1) through the guide rail slider module to improve the stability of component movement. Similar structures will not be described again in the following text.

[0049] Specifically, before the film is applied, the third driving component 213 drives the first connecting seat 212 to move the application wheel 211 closer to the insulating film, thereby pulling the material end of the insulating film. When the base plate 1 moves the application component 21 relative to the photovoltaic module, so that the material end of the insulating film is aligned with the surface of the photovoltaic module to be applied, the third driving component 213 further drives the first connecting seat 212 to move the application wheel 211 closer to the surface of the photovoltaic module to be applied, thereby pressing the adhesive side of the insulating film onto the surface of the photovoltaic module to be applied, and maintaining it until all corresponding sides (surfaces to be applied) of the photovoltaic module are covered with the insulating film, the third driving component 213 drives the first connecting seat 212 to move the application wheel 211 away from the corresponding side of the photovoltaic module.

[0050] Additionally, it should be noted that the number of application rollers 211 can be flexibly selected according to the actual film application process. If two or more application rollers 211 are selected, they can be arranged linearly along the moving direction of the base plate 1. In this embodiment, the third driving component 213 is a device such as a cylinder that can achieve linear drive.

[0051] It should be noted that the number of circumferential sides of the photovoltaic module needs to be considered when applying the film. In this embodiment, the photovoltaic module is generally rectangular, meaning it has four circumferentially connected surfaces to be covered with film. During film application, either one film-applying device can be used to apply film to all four sides of the photovoltaic module sequentially and continuously, or two to four film-applying devices can be used to apply film to each of the four sides separately. Regardless of the method, at least one film-applying device must apply film to one side (the surface to be covered). Therefore, this embodiment focuses on the mechanical structure and operation of one film-applying device to one side; the same principle applies to the method of at least two film-applying devices applying film to all four sides separately. Clearly, multiple film-applying devices can operate simultaneously, as long as interference is avoided at intersections, thus significantly improving application efficiency. The number of film-applying devices can be flexibly adjusted based on factors such as the number of surfaces surrounding the photovoltaic module and the space available for the machine / workshop.

[0052] To achieve automated cutting of insulating film, as an example and not a limitation, refer to... Figure 1 and Figure 2As shown, the first film-applying mechanism 2 also includes a discontinuous component 22 disposed after the application component 21; the discontinuous component 22 includes a clamping member 221 and a cutting member 222, which are arranged sequentially along the moving direction of the base plate 1; the cutting member 222 is configured to cut the insulating film after a preset length of insulating film is applied to the current film-to-be-applied surface; the clamping member 221 is configured to clamp the insulating film when the cutting member 222 cuts the insulating film, and release the insulating film after the next film-to-be-applied surface is applied.

[0053] It should be noted that the preset length of the insulating film is generally greater than or equal to the length of the corresponding side of the photovoltaic module. In this embodiment, in order to ensure that there are no gaps between the insulating films on adjacent sides of the photovoltaic module, the preset length of the insulating film is slightly greater than the length of the corresponding side of the photovoltaic module.

[0054] In addition, in order to balance the performance of the photovoltaic module, in this embodiment, both the upper and lower surfaces (the edge parts near the sides) of the photovoltaic module need to be covered with film, and the film widths on the upper and lower surfaces are equal.

[0055] Specifically, the base plate 1 drives the attachment component 21 to move a certain distance relative to the corresponding side of the photovoltaic module, so that the corresponding side of the photovoltaic module is completely covered by the insulating film. Then, the shearing component 222 is driven to approach and cut the insulating film (after cutting, the shearing component 222 returns to its initial position), while the clamping component 221 clamps the insulating film to temporarily fix the incoming end of the insulating film, so that the attachment component 21 can directly attach the insulating film to the corresponding side of the next photovoltaic module (after the corresponding side of the next photovoltaic module is stably attached with a certain length of insulating film, the clamping component 221 releases the insulating film). After the attachment component 21 moves out of the photovoltaic module along the length direction of the corresponding side of the photovoltaic module, the shaping component 31 bends the remaining part of the corresponding side of the photovoltaic module and attaches the bent part to the upper and lower surfaces of the photovoltaic module respectively, finally completing the film application operation on the corresponding side of the photovoltaic module.

[0056] In some examples, the shearing member 222 can be a scissor 2222 or a blade, etc., that can quickly break the insulating film, and the clamping member 221 can be a robotic arm or other structure that can perform clamping and releasing functions.

[0057] Reference is provided as an example, not a limitation. Figure 2As shown, the clamping member 221 includes a first clamping part 2211, a second clamping part 2212, and a first driving member 2213; the first clamping part 2211 and the second clamping part 2212 are arranged sequentially in a direction away from the photovoltaic module to be coated with film, and the first clamping part 2211 has a clearance gap 22111, which is configured to allow the photovoltaic module with the insulating film to pass through; the first clamping part 2211 is slidably disposed on the base plate 1 via a base 2214, and the base 2214 slides in a direction perpendicular to the surface to be coated with film, so as to approach or move away from the surface to be coated with film of the photovoltaic module; the first driving member 2213 is configured to drive the first clamping part 2211 to approach or move away from the second clamping part 2212, so that the insulating film is clamped or released.

[0058] It should be noted that, in order to achieve clamping of the insulating film, the width of the clearance gap 22111 is generally smaller than the width of the insulating film and not less than the thickness of the photovoltaic module. In this embodiment, the first clamping part 2211 includes two first wheels arranged at intervals in the vertical direction. The two first wheels (generally cylindrical) are mounted on the base 2214 and are arranged facing each other to form a clearance gap 22111 between them. The second clamping part 2212 includes a second connecting seat 22121 and a second wheel 22122 (generally cylindrical). The second wheel 22122 is mounted on the second connecting seat 22121, and the base 2214 is slidably mounted on the second connecting seat 22121 in the direction from the second clamping part 2212 to the first clamping part 2211, so that the overall structure of the clamping member 221 is more compact. When the clamping member 221 needs to clamp the insulating film, the first driving member 2213 drives the two first wheels to approach the adhesive surface of the insulating film through the base 2214, thereby pressing the insulating film against the side of the second wheel 22122. The first wheel and the second wheel 22122 are generally cylindrical, which can greatly reduce the contact area between the two and the insulating film, so as to quickly separate the first clamping part 2211 and the adhesive surface of the insulating film.

[0059] To facilitate the separation of the insulating film from the first clamping part 2211, an anti-adhesion isolation layer is provided on the side of the first clamping part 2211 facing the adhesive surface of the insulating film. This prevents strong adhesion between the adhesive surface of the insulating film and the first clamping part 2211, thus effectively protecting the adhesive surface of the insulating film. The surface of the isolation layer is generally treated with, for example, special silicone oil to give it a very low surface energy. In this embodiment, isolation layers can also be provided on other components or structures that may adhere to the adhesive surface of the insulating film. The specific locations can be flexibly adjusted according to actual needs, and will not be elaborated further.

[0060] In some examples, refer to Figure 1As shown, the shearing component 222 includes a fourth driving component 2221 and scissors 2222. The scissors 2222 are arranged vertically, and the driving end of the fourth driving component 2221 is connected to the scissors 2222 to drive the scissors 2222 to move closer to or away from the insulating film. In this embodiment, the scissors 2222 are positioned above the insulating film, and the fourth driving component 2221 is a cylinder, arranged vertically.

[0061] In some examples, to further improve the adhesion between the insulating film and the photovoltaic module, see [reference]. Figure 1 and Figure 3 As shown, the first film-applying mechanism 2 also includes a first hot film assembly 23. The first hot film assembly 23 is located in front of the second film-applying mechanism 3. The first hot film assembly 23 includes a mounting base 231 and a first heating wheel 232 mounted on the mounting base 231. The mounting base 231 is slidably mounted on the base plate 1 to drive the first heating wheel 232 to approach or move away from the film surface of the photovoltaic module to be applied, so that the first heating wheel 232 can make thermal contact with the insulating film at the film surface to be applied.

[0062] It is understandable that there are various heating methods for the first heating wheel 232, such as setting a resistance wire inside the first heating wheel 232, or circulating a flowing medium with a certain temperature into the first heating wheel 232. In this embodiment, in order to ensure the compact structure of the film-applying device and minimize the structure and components required for heating, the method of building in a resistance wire can be selected.

[0063] In addition, to achieve automated movement of the mounting base 231, a fifth driving component 233 can be set on the base plate 1. The mounting base 231 is connected to the drive shaft of the fifth driving component 233 to drive the first heating wheel 232 to approach the corresponding side of the photovoltaic module, and make the first heating wheel 232 press against the insulating film on the side of the photovoltaic module (the insulating film that has been attached to the photovoltaic module by the attachment component 21) to soften the insulating film, so that the insulating film can be more fully attached to the micro-unevenness, scratches and gaps on the surface to be attached.

[0064] Furthermore, in some examples, the first hot film assembly 23 also includes a first hot air duct (not shown), with the hot air outlet of the first hot air duct facing the surface of the photovoltaic module to be coated with the film. The first hot air duct helps maintain or further increase the temperature of the insulating film, allowing it to maintain a relatively soft texture in subsequent steps of the coating process, facilitating shaping. In this embodiment, the first hot film assembly 23 is disposed between the first heating wheel 232 and the shaping assembly 31.

[0065] The second film-applying mechanism 3 includes a shaping component 31, which is configured to bend the portion of the insulating film that is above the upper surface of the photovoltaic module and / or the portion of the insulating film that is below the lower surface of the photovoltaic module toward the photovoltaic module, and to attach the bent portion to the upper surface and / or the lower surface of the photovoltaic module.

[0066] By setting the shaping component 31, the portion of the insulating film to be bent can be bent in advance and initially attached to the upper and / or lower surface of the photovoltaic module, so that the subsequent shaping component 33 can perform a second bend on the corresponding bent portion, thereby ensuring the bending effect of the corresponding bent portion, thereby achieving sufficient plasticity of the corresponding bent portion, so that the portion to be bent can be tightly attached to the upper and / or lower surface of the photovoltaic module.

[0067] In some examples, refer to Figure 1 and Figure 4 As shown, the shaping component 31 includes a base 311 and at least two shaping wheels 312. The base 311 is slidably disposed on the base plate 1 and is configured to be close to or away from the film surface to be applied to the photovoltaic module. Each shaping wheel 312 is elastically mounted on the base 311 in a direction perpendicular to the film surface to be applied to the photovoltaic module. Each shaping wheel 312 has a receiving space 3121 for accommodating the frame of the photovoltaic module, and the receiving space 3121 of each shaping wheel 312 gradually increases along the moving direction of the base plate 1 to gradually bend the insulating film so that the upper and lower edges of the insulating film gradually adhere to the edges of the upper and lower surfaces of the photovoltaic module.

[0068] Since the width of the insulating film is greater than the width of the surface to be coated, when the coating assembly 21 coats part of the insulating film (along the width direction of the insulating film) onto the side of the photovoltaic module, as the base plate 1 moves, the shaping assembly 31 moves to the side portion of the photovoltaic module where the initial coating has been applied. In this embodiment, the shaping assembly 31 also includes a sixth driving member 313 disposed on the base plate 1. The driving end of the sixth driving member 313 is connected to the base 311 so that the base 311 can drive all the shaping wheels 312 to approach or move away from the side portion of the photovoltaic module where the initial coating has been applied. The elastic connection between the shaping wheels 312 and the base 311 allows the shaping wheels 312 to adaptively match the edge portion of the side of the photovoltaic module (i.e., the upper and lower surfaces of the photovoltaic module adjacent to this side). By setting multiple shaping wheels 312, the upper and lower edges of the insulating film are gradually bent, thereby ensuring the bending effect of the upper and lower edges of the insulating film and further improving the adhesion effect between the upper and lower edges of the insulating film and the corresponding edges of the photovoltaic module.

[0069] The third connecting seat can be directly installed on the base 311 through an elastic structure such as a column spring, or it can be assembled through an intermediate structure, that is, the intermediate structure is installed on the base 311 through an elastic structure, so as to replace and adjust the shaping wheel 312.

[0070] Furthermore, in some examples, the shaping wheel 312 is elastically mounted on the base 311 via the first mounting bracket 314, and the shaping wheel 312 is elastically mounted on the first mounting bracket 314 in the vertical direction. Through the elastic connection between the shaping wheel 312 and the first mounting bracket 314, the shaping wheel 312 can move flexibly in the vertical direction relative to the first mounting bracket 314, thereby adapting to the periphery of the photovoltaic module and ensuring that the upper and lower edges of the photovoltaic module can be effectively bent.

[0071] In this embodiment, the shaping wheel 312 is fixed to the first mounting bracket 314 via a columnar structure. The shaping wheel 312 is sleeved on the columnar structure, and two columnar springs are sleeved on the columnar structure, so that the two columnar springs abut against the two ends of the shaping wheel 312 respectively. Of course, in other examples, the shaping wheel 312 can also be directly connected to the first mounting bracket 314 via other elastic structures (such as elastic rubber pads).

[0072] In some examples, refer to Figure 4 As shown, the shaping component 31 includes a roller 315, which is elastically mounted on the base 311 in a direction perpendicular to the film surface of the photovoltaic module; wherein, the roller 315 is located between two adjacent shaping rollers 312 along the moving direction of the base plate 1.

[0073] By setting the roller 315, the vertical surface of the insulating film can be further pressed, thereby ensuring that both the vertical and bent surfaces of the insulating film are tightly attached to the periphery of the photovoltaic module, ensuring the adhesion effect.

[0074] It is understood that the number and position of the rollers 315 can be flexibly adjusted according to the actual bonding requirements and the overall layout of the shaping assembly 31. That is, there can be two or more rollers 315, and correspondingly, the number of shaping wheels 312 is at least equal to the number of rollers 315. In this embodiment, there are three shaping wheels 312 and one roller 315. Along the moving direction of the base plate 1, the roller 315 is positioned between the second and third shaping wheels 312 to ensure that the main function of the shaping assembly 31 is to bend the upper and lower edges of the insulating film and attach the bent surface to the edges of the upper and lower surfaces around the photovoltaic module. At the same time, at the final bend, the vertical surface of the insulating film is pressed again to improve the overall bonding effect of the vertical surface and the bent surface of the insulating film with the photovoltaic module.

[0075] Additionally, in some examples, refer to Figure 5 As shown, the surface of the roller 315 that acts on the insulating film is closer to the surface of the photovoltaic module to be coated than the surface of each shaping wheel 312 that acts on the insulating film, so as to ensure that the roller 315 can press the vertical surface of the insulating film.

[0076] In some examples, refer to Figure 4As shown, at least one pair of shaping wheels 312 is provided with a second hot air pipe 316 between them; and / or, at least one end of the shaping assembly 31 along the movement direction of the base plate 1 is provided with a second hot air pipe 316; wherein the air outlet of the second hot air pipe 316 faces away from the center of the base plate 1.

[0077] Understandably, the number and position of the second hot air pipes 316 can be flexibly adjusted according to the actual film-applying process requirements. For example, the second hot air pipes 316 can be set between two adjacent shaping rollers 312; or at the beginning or end of the shaping assembly 31, or at both ends. Alternatively, the second hot air pipes 316 can be set inside the shaping assembly 31 and at both ends. The arrangement of the second hot air pipes 316 allows hot air to be blown to the insulating film, thereby further maintaining or heating and softening the insulating film, facilitating the shaping assembly 31 in shaping the insulating film; simultaneously, the shaping rollers 312 (and in this embodiment, the roller shaft 315) can also be heated, so that the shaping assembly 31 can perform thermoplastic shaping of the insulating film.

[0078] In some examples, the air outlet of the second hot air duct 316 can be extended to be flush with or protrude from the working surface of the shaping component 31, so that the second hot air duct 316 can directly contact the insulating film, improving the efficiency of heat conduction. Alternatively, the hot air inside the second hot air duct 316 can be circulated within itself and not flow out from the air outlet, allowing the hot air to directly heat the second hot air duct 316 itself, and then heat transfer occurs solely through solid-state contact.

[0079] Of course, other heating structures that can achieve heat transfer (such as structures with built-in resistance wires or other fluid media with heat) can also be provided inside the shaping component 31 or at least at one of the two ends. Typically, the heating structure needs to be in direct contact with the insulating film.

[0080] In some examples, refer to Figure 1 As shown, the second film-applying mechanism 3 also includes a second hot-film assembly 32, which is disposed after the shaping assembly 31. The second hot-film assembly 32 includes a first heating part and a second heating part (not shown) arranged vertically. The first heating part and the second heating part are configured to heat the insulating film attached to the upper and lower surfaces of the photovoltaic module, respectively. By providing the first heating part and the second heating part, the insulating film attached to the upper and lower surfaces of the photovoltaic module can be further softened, that is, the adhesion between the bent surface of the insulating film and the side edge of the photovoltaic module can be improved.

[0081] The first and second heating parts can be regular shapes such as cuboids or cylinders, or any other irregular shapes, as long as they satisfy the requirement of heating the bent surface of the insulating film. Furthermore, the heat conduction between the first and second heating parts and the bent surface of the insulating film can be achieved through direct solid-solid contact or gas-solid contact. In this embodiment, there are small gaps between both the first and second heating parts and the bent surface of the insulating film, and air outlets can be provided on the surfaces of both heating parts facing the bent surface of the insulating film, allowing hot air to be directly blown onto the bent surface of the insulating film.

[0082] It should be noted that, in some examples, to simplify the structure of the shaping component 31 and to uniformly press the vertical and bent surfaces of the insulating film, thereby ensuring the final insulating film adhesion effect, the vertical dimension of the accommodating space 3121 of the last shaping wheel 312 of the shaping component 31 is still larger than the thickness of the photovoltaic module plus the two insulating film bent surfaces, thus ensuring the bending effect of the insulating film.

[0083] In this embodiment, the shaping component 33 further includes a seventh driving member 334 disposed on the base plate 1. The driving shaft of the seventh driving member 334 is connected to the fixing frame 331, so as to drive the upper shaping wheel 332 and the lower shaping wheel 333 to move closer to or away from the photovoltaic module through the fixing frame 331. By separately setting the upper shaping wheel 332 and the lower shaping wheel 333, the distance between the shaping wheel and the lower shaping wheel 333 can be flexibly adjusted to adapt to photovoltaic modules of different thicknesses and ensure sufficient pressure on the bending surface of the insulating film. The minimum vertical distance between the upper shaping wheel 332 and the lower shaping wheel 333 is generally equal to or slightly less than the thickness of the photovoltaic module plus the thickness of the two bending surfaces of the insulating film. Furthermore, by setting the opposite side surface of the upper shaping wheel 332 and the lower shaping wheel 333 as a frustum or a conical surface (in extreme cases), which is a frustum in this embodiment, the vertical surface and bending surface of the insulating film can be fully pressed.

[0084] In addition, the upper shaping wheel 332 and the lower shaping wheel 333 can also be mounted on the fixing frame 331 via a columnar structure, and two columnar springs are fitted on the columnar structure. The two columnar springs press against the upper shaping wheel 332 and the lower shaping wheel 333 respectively, so that the upper shaping wheel 332 and the lower shaping wheel 333 can move adaptively during the pressing of the insulating film, thereby fully pressing the insulating film. At the same time, the columnar structure allows the side of the columnar structure to press against the vertical surface of the insulating film, thereby further improving the adhesion effect of the insulating film on the photovoltaic module.

[0085] It should be noted that in some cases, to ensure the effective coverage of the insulating film on the side of the photovoltaic module, the length of the insulating film is generally set to be slightly longer than the length of the surface of the photovoltaic module to be covered with the film. In this case, due to the flexible installation of the upper shaping wheel 332 and the lower shaping wheel 333, when the photovoltaic module moves away from the shaping component 33, the upper shaping wheel 332 and the lower shaping wheel 333 will continue to approach the surface of the photovoltaic module to be covered with the film. Based on the surface shape of the upper shaping wheel 332 and the lower shaping wheel 333, the excess insulating film can be attached to another adjacent surface of the photovoltaic module to be covered with the film. The flexible installation method of the upper shaping wheel 332 and the lower shaping wheel 333 is similar to the flexible installation method of the other components mentioned above, and will not be described again here.

[0086] Furthermore, in some examples, refer to Figure 1 and Figure 6 As shown, the second film-applying mechanism 3 also includes a cooling element 34, which is located below the shaping component 33, and has a cold air outlet on the side facing the photovoltaic module. When the insulating film is pressed by the shaping component 33, if the temperature of the insulating film is still too high, the cooling element 34 can quickly cool the insulating film, thereby shaping the heated insulating film.

[0087] In some examples, refer to Figure 1 and Figure 7 As shown, in order to achieve stable feeding of the insulating film, the film application device also includes a feeding mechanism 4. The feeding mechanism 4 includes a punching component 41, a feeding roller 42, a first transition roller group 43 and a second transition roller group 44. The punching component 41 is located between the first transition roller group 43 and the second transition roller group 44 along the traction direction of the insulating film. The punching assembly 41 includes a second drive member 411, an upper die 412, and a lower die 413. One of the upper die 412 and the lower die 413 is a die cavity, and the other is a punch that cooperates with the die cavity. One of the upper die 412 and the lower die 413 can be driven by the second drive member 411 to move closer to or away from the other. The feed roller 42 is configured to wind an insulating film. The first transition roller group is configured to pull the insulating film in the height direction and pull the insulating film to the second transition roller group 44. The second transition roller is configured to pull the insulating film in the horizontal direction and pull the insulating film to the attachment assembly 21.

[0088] Specifically, a certain length of insulating film is wound around the feeding roller 42. At this time, release paper is attached to the adhesive surface of the insulating film. The feeding roller 42 is equipped with a feeding motor so that it can smoothly rotate when a feeding signal is received. Then, through the cooperation of the first transition roller group 43 and the second transition roller group 44, the traction direction of the insulating film is adjusted so that the subsequent attachment assembly 21 can correctly pull the incoming end of the insulating film.

[0089] It should be noted that, to prevent bulging of the insulating film at the corners of the photovoltaic module, a punching component 41 is used to precisely remove excess portions of the insulating film, in conjunction with the discontinuous component 22 described earlier for trimming. (Refer to...) Figure 7 As shown, when the insulating film passes through the punching assembly 41, the second driving member 411 drives the convex mold (upper mold 412 in this embodiment) to approach the concave mold (lower mold 413 in this embodiment), thereby punching a portion of the insulating film along the width direction of the insulating film, retaining only the middle part of this segment of insulating film (called the narrow segment of insulating film, whose width is generally less than or equal to the thickness of the photovoltaic module). When the shaping assembly 33 completes the attachment of the insulating film to the current side of the film to be attached, the upper shaping wheel 332 and the lower shaping wheel 333 will press the narrow segment of insulating film onto the film to be attached surface adjacent to the current side.

[0090] Reference Figure 8 The diagram shows a partial unfolded view of the insulating film, used to illustrate the insulating film on one side of the surface to be coated. Based on the coating position, it can be divided into a vertical surface (a) and a bent surface (b). Based on the cutting position, the vertical surface (a) can be further divided into a main segment (a1) and a narrow segment (a2). The main segment (a1) is coated onto the side of the photovoltaic module's coating surface (first surface), and the narrow segment (a2) is coated onto the other coating surface (second surface). The first and second surfaces are adjacent and perpendicular to each other, and both are vertical planes. The two bent surfaces (b) are coated onto two horizontal surfaces adjacent to the coating surface (first surface) (the edges of the upper and lower surfaces).

[0091] In some examples, refer to Figure 7 As shown, a film clamping mechanism 5 is provided along the traction path of the second transition roller group 44. The film clamping mechanism 5 is configured to clamp the insulating film under a preset condition.

[0092] The preset conditions may include at least one of the following situations: 1. When it is necessary to peel off the release paper from the insulating film; 2. When it is necessary to cut the insulating film. It is understood that the film clamping mechanism 5 can cooperate with the clamping member 221 to clamp the insulating film simultaneously, so as to tighten the insulating film and facilitate the cutting member 222 to cut the insulating film; or it can clamp the insulating film alone, so as to facilitate the peeling off of the release paper and prevent the insulating film at the feeding mechanism 4 from loosening.

[0093] In this embodiment, when the insulating film is about to pass through the film clamping mechanism 5, the release paper can be automatically peeled off manually, by rollers or a robot, and the adhesive-free side of the insulating film can be wrapped around the remaining rollers of the second transition roller group 44.

[0094] In some examples, the clamping mechanism 5 can be a structure capable of clamping and releasing functions, such as a pneumatic gripper.

[0095] Furthermore, in some examples, refer to Figure 7As shown, the film-applying device also includes a recovery roller assembly 6 and a recovery roller 7. The recovery roller assembly 6 is configured to pull the release paper peeled from the insulating film onto the recovery roller 7, and the recovery roller 7 is configured to wrap the release paper around the insulating film. The recovery roller assembly 6 and the recovery roller 7 enable centralized recovery of the release paper. A motor can also be installed on the recovery roller 7, applying a constant torque to achieve automatic winding of the release paper.

[0096] In some examples, refer to Figure 1 As shown, the base plate 1 is provided with at least one set of bearing rollers 11, which are located on the opposite side of the attachment component 21 to support the photovoltaic module, thereby improving the stability of the photovoltaic module during film application.

[0097] It should be noted that after the insulating film is attached to all sides of the photovoltaic module, the corners of the module also need to be heated to fuse the overlapping insulating films together, thus forming a good seal. (Refer to...) Figure 1 and Figure 9 As shown, the film-applying device also includes a spot-heating mechanism 8 disposed on the base plate 1, which is located after the second film-applying mechanism 3. The spot-heating mechanism 8 includes a first adjustment component 81, a second adjustment component 82, and a spot-heating component 83. The spot-heating component 83 is mounted on the second adjustment component 82, and the second adjustment component 82 is mounted on the base plate 1 via the first adjustment component 81. The first adjustment component 81 is configured to drive the second adjustment component 82 and the spot-heating component 83 to move along a first direction, and the second adjustment component 82 is configured to drive the spot-heating component 83 to move along a second direction. The first direction is perpendicular to the film-applied surface of the photovoltaic module, and the second direction is the first direction and the length direction of the film-applied surface. The angle bisector direction; the heating element 83 includes a second mounting bracket 831 and an eighth driving member 832; the second mounting bracket 831 is provided with a first heating element 833, an intermediate heating element 834 and a second heating element in sequence along the vertical direction; the eighth driving member 832 is configured to drive the first heating element 833 and the second heating element to move in the vertical direction, so that the first heating element 833 is in contact with the upper surface of the photovoltaic module and the second heating element is in contact with the lower surface of the photovoltaic module respectively; the intermediate heating element 834 is provided with a first heating surface 8341 and a second heating surface 8342 intersecting at a preset angle on the part facing the photovoltaic module, so as to be in contact with the two adjacent sides of the photovoltaic module respectively.

[0098] In this embodiment, the preset angle is 90° to adapt to the corners of the preset photovoltaic module. (Refer to...) Figure 9 As shown, the first direction is X, and the second direction is Y.

[0099] Specifically, the photovoltaic module is first fixed, and then the base plate 1 is moved to move the heating mechanism 8, so that the corner of the photovoltaic module to be treated is within the working range of the heating mechanism 8. Then, through the cooperation of the first adjustment component 81 and the second adjustment component 82, the heating component 83 is moved closer to the corner of the photovoltaic module to be treated, so that the corner of the photovoltaic module to be treated enters between the first heating element 833 and the second heating element. At this time, the two adjacent sides of the corner to be treated are respectively in contact with the first heating surface 8341 and the second heating surface 8342, achieving the initial positioning of the photovoltaic module. Subsequently, the eighth driving component 832 drives the first heating element 833 and the second heating element to move, so that the first heating element 833 is in contact with the upper surface of the photovoltaic module and the second heating element is in contact with the lower surface of the photovoltaic module, respectively, ultimately achieving the heating of each side of the corner to be treated, thereby making the overlapping insulating film tightly adhered.

[0100] Furthermore, in some examples, refer to Figure 9 As shown, one of the first heating element 833 and the second heating element is fixedly connected to the driving end of the eighth driving element 832, and the other is fixedly connected to the fixed end of the eighth driving element 832. In this embodiment, the eighth driving element 832 is a cylinder. This arrangement allows for a more compact structure in the heating assembly 83.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0102] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0103] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A film-applying device, characterized in that, The film application device includes a base plate, a first film application mechanism, and a second film application mechanism; The base plate can be driven to move along the length of the photovoltaic module's film-to-be-applied surface; The second film-applying mechanism and the first film-applying mechanism are arranged sequentially on the base plate along the moving direction of the base plate; The first film-applying mechanism includes an attachment component, which is configured to pull the incoming end of the insulating film and attach the adhesive side of the insulating film to the film-to-be-applied surface of the photovoltaic module. The second film application mechanism further includes a shaping component, which is located after the application component; The shaping component includes a fixing frame, an upper shaping wheel, and a lower shaping wheel. The fixing frame is slidably mounted on the base plate via a fixing seat, and the fixing frame is elastically mounted on the fixing seat in a direction perpendicular to the surface of the photovoltaic module to be coated. The upper shaping wheel and the lower shaping wheel are arranged at intervals relative to each other in the vertical direction and are elastically mounted on the fixing frame so that they can press against the upper and lower surfaces of the photovoltaic module respectively after being subjected to external force, so that the part of the insulating film above the upper surface of the photovoltaic module and / or the part of the insulating film below the lower surface of the photovoltaic module bends towards the photovoltaic module and the bent part is attached to the upper and / or lower surfaces of the photovoltaic module.

2. The film-applying device according to claim 1, characterized in that, The surfaces of the upper and lower shaping wheels facing each other are either frustum or conical surfaces.

3. The film-applying device according to claim 1, characterized in that, The first film application mechanism also includes an intermittent component disposed after the application component; The discontinuous assembly includes a clamping member and a shearing member, which are arranged sequentially along the moving direction of the base plate; The cutting element is configured to cut the insulating film after a preset length of insulating film has been applied to the current film-to-be-applied surface. The clamping member is configured to hold the insulating film while the shearing member is cutting the insulating film, and to release the insulating film after the insulating film is applied to the next surface to be covered.

4. The film-applying device according to claim 3, characterized in that, The clamping member includes a first clamping part, a second clamping part, and a first driving member; The first clamping part and the second clamping part are arranged sequentially along a direction away from the photovoltaic module to be coated with film, and the first clamping part has a clearance gap, which is configured to allow the photovoltaic module with insulating film to pass through; The first clamping part is slidably disposed on the base plate via the base, and the base slides in a direction perpendicular to the film surface to be applied, so as to approach or move away from the film surface to be applied to the photovoltaic module; The first drive member is configured to drive the first clamping portion to move closer to or away from the second clamping portion, such that the insulating film is clamped or released.

5. The film-applying device according to claim 1, characterized in that, The first film-applying mechanism further includes a first hot film assembly, which is located in front of the second film-applying mechanism. The first hot film assembly includes a mounting base and a first heating wheel mounted on the mounting base. The mounting base is slidably disposed on the base plate to drive the first heating wheel to approach or move away from the film-to-be-applied surface of the photovoltaic module, so that the first heating wheel can make thermal contact with the insulating film on the film-to-be-applied surface.

6. The film-applying device according to claim 5, characterized in that, The first thermal film assembly also includes a first hot air duct, the hot air outlet of the first hot air duct facing the film surface of the photovoltaic assembly to be coated.

7. The film-applying device according to claim 1, characterized in that, The second film-applying mechanism includes a shaping component disposed in front of the shaping component. The shaping component is configured to bend the portion of the insulating film that is above the upper surface of the photovoltaic module and / or the portion of the insulating film that is below the lower surface of the photovoltaic module toward the photovoltaic module, and to attach the bent portion to the upper surface and / or the lower surface of the photovoltaic module.

8. The film-applying device according to claim 7, characterized in that, The shaping assembly includes a base and at least two shaping wheels. The base is slidably disposed on the base plate and is configured to be close to or away from the film surface to be applied to the photovoltaic module. Each of the shaping wheels is elastically mounted on the base in a direction perpendicular to the film surface to be applied to the photovoltaic module. Each of the shaping wheels has a receiving space to accommodate the frame of the photovoltaic module, and the receiving space of each shaping wheel gradually increases along the moving direction of the base plate to gradually bend the insulating film.

9. The film-applying device according to claim 8, characterized in that, The shaping wheel is elastically mounted on the base via a first mounting bracket, and the shaping wheel is elastically mounted on the first mounting bracket in the vertical direction.

10. The film-applying device according to claim 8, characterized in that, The shaping component includes a roller shaft, which is elastically mounted on the base in a direction perpendicular to the surface of the photovoltaic module to be coated with film; The roller is positioned between two adjacent shaping rollers along the moving direction of the base plate.

11. The film-applying device according to claim 8, characterized in that, At least one pair of shaping wheels is provided with a second hot air duct between them; And / or, At least one end of the shaping component along the direction of movement of the base plate is provided with a second hot air duct; The outlet of the second hot air duct faces away from the center of the base plate.

12. The film-applying device according to claim 7, characterized in that, The second film-applying mechanism further includes a second hot film assembly, which is disposed after the shaping assembly. The second hot film assembly includes a first heating part and a second heating part arranged in a vertical direction. The first heating part and the second heating part are configured to heat the insulating film attached to the upper and lower surfaces of the photovoltaic module, respectively.

13. The film-applying device according to claim 1, characterized in that, The second film-applying mechanism also includes a cooling component, which is located below the shaping component and has a cold air outlet on the side of the cooling component facing the photovoltaic component.

14. The film-applying device according to claim 1, characterized in that, The film application device further includes a hot-pressing mechanism disposed on the base plate, which is located after the second film application mechanism; The hot-pressing mechanism includes a first adjustment component, a second adjustment component, and a hot-pressing component; the hot-pressing component is mounted on the second adjustment component, and the second adjustment component is mounted on the base plate via the first adjustment component. The first adjustment component is configured to drive the second adjustment component and the hot stamping component to move along a first direction, and the second adjustment component is configured to drive the hot stamping component to move along a second direction; Wherein, the first direction is perpendicular to the film-coated surface of the photovoltaic module, and the second direction is the angle bisector of the first direction and the length direction of the film-coated surface; The hot-heating assembly includes a second mounting bracket and an eighth driving component; The second mounting bracket is provided with a first heating element, an intermediate heating element, and a second heating element in sequence along the vertical direction; The eighth driving element is configured to drive the first heating element and the second heating element to move in the vertical direction, so that the first heating element is in contact with the upper surface of the photovoltaic module and the second heating element is in contact with the lower surface of the photovoltaic module respectively. The intermediate heating element is provided with a first heating surface and a second heating surface that intersect at a preset angle on the part facing the photovoltaic module, so as to be respectively attached to the two sides adjacent to the photovoltaic module.

15. The film-applying device according to claim 14, characterized in that, One of the first heating element and the second heating element is fixedly connected to the driving end of the eighth driving element, and the other is fixedly connected to the fixed end of the eighth driving element.

16. The film-applying device according to any one of claims 1-15, characterized in that, The film application device also includes a feeding mechanism, which includes a punching component, a feeding roller, a first transition roller group and a second transition roller group. The punching component is located between the first transition roller group and the second transition roller group along the traction direction of the insulating film. The punching assembly includes a second drive member, an upper die, and a lower die. One of the upper die and the lower die is a die cavity, and the other is a punch that cooperates with the die cavity. One of the upper die and the lower die can be driven by the second drive member to move closer to or further away from the other. The feed roller is configured to wind the insulating film, and the first transition roller group is configured to pull the insulating film in the height direction and pull the insulating film to the second transition roller group; The second transition roller is configured to pull the insulating film in the horizontal direction and pull the insulating film to the attachment assembly.

17. The film-applying device according to claim 16, characterized in that, A film clamping mechanism is provided along the traction path of the second transition roller group, and the film clamping mechanism is configured to clamp the insulating film under a preset condition.

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