Packaging method of photovoltaic module and insulating tape packaging equipment

Abstract

The invention discloses an insulated rubber tape packaging device and a packaging method of a photovoltaic module, and the insulated rubber tape packaging device comprises a rubber tape rolling wheel; the extrusion assembly is provided with at least one U-shaped clamping structure and is used for extruding and limiting the insulating adhesive tape released by the adhesive tape rolling wheel to the edge of the target photovoltaic structural component; wherein the target photovoltaic structural member is a laminated member or a laminated member before the laminated member is laminated, and the target photovoltaic structural member comprises front glass, a front adhesive film, a photovoltaic cell layer, a back adhesive film and a back plate; the heating device is used for heating the insulating tape; the driving assembly is connected with the adhesive tape rolling wheel and the extrusion assembly; and the controller is used for controlling the driving assembly to drive the extrusion assembly and the adhesive tape rolling wheel to synchronously move along the edge of the target photovoltaic structural member. On the basis that the packaging difficulty of the photovoltaic module is not increased, the sealing performance and the insulating performance of the photovoltaic module are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic module preparation, in particular to a packaging method of a photovoltaic module and an insulation tape packaging device. BACKGROUND

[0002] With the continuous development of the solar industry, photovoltaic modules are increasingly widely used. In the packaging and manufacturing method of the photovoltaic module, the front glass, the front adhesive film, the photovoltaic cell layer, the back adhesive film and the back plate are stacked in sequence to form a laminated piece, and then the laminated piece is laminated to form a laminated piece, and then the laminated piece is packaged with a frame to form a photovoltaic module. Because the area and weight of the laminated piece and the laminated piece are relatively large during the entire packaging process, it also makes the packaging of the photovoltaic module difficult and the process is complicated, and the sealing and insulation of the photovoltaic module formed by the final packaging directly affect the working performance and service life of the photovoltaic module put into practical use. Therefore, how to simplify the packaging difficulty of the photovoltaic module as much as possible while ensuring the sealing and insulation of the photovoltaic module is crucial to the application of the photovoltaic module. SUMMARY

[0003] The purpose of the present application is to provide an insulation tape packaging device and a packaging method of a photovoltaic module, which can simply and quickly set the insulation tape for the edge of the laminated piece or the laminated piece without increasing the packaging difficulty of the photovoltaic module, and improve the sealing performance and insulation performance of the photovoltaic module formed by the final packaging.

[0004] To solve the above technical problems, the present application provides an insulation tape packaging device, comprising:

[0005] A tape roll wheel;

[0006] At least one U-shaped clamping structure for extruding and limiting the insulation tape released by the tape roll wheel to the edge of the target photovoltaic structure; wherein the target photovoltaic structure is a laminated piece or a laminated piece before the laminated piece is laminated, and the target photovoltaic structure includes a front glass, a front adhesive film, a photovoltaic cell layer, a back adhesive film and a back plate;

[0007] A heating device for heating the insulation tape;

[0008] A driving assembly connected to the tape roll wheel and the extrusion assembly;

[0009] A controller for controlling the driving assembly to drive the extrusion assembly and the tape roll wheel to move synchronously along the edge of the target photovoltaic structure.

[0010] In one optional embodiment of this application, the heating device is a heating metal sheet; the heating device and the U-shaped clamping structure are fixedly connected to each other and located on the side of the U-shaped clamping structure opposite to the direction of movement.

[0011] In one optional embodiment of this application, the heating device and the U-shaped clamping structure are an integral structure; the U-shaped clamping structure is a U-shaped heating metal sheet.

[0012] In one optional embodiment of this application, a fixing component is further included; the fixing component includes a fixing suction cup and a side baffle;

[0013] The fixed suction cup is used to adhere to the upper and lower surfaces of the target photovoltaic structure.

[0014] The side baffle is used to limit the side position of the target photovoltaic structure, and a telescopic rod is also connected to the side of the side baffle away from the target photovoltaic structure.

[0015] In one optional embodiment of this application, the fixing suction cup includes a first suction cup for adsorbing with the upper surface of the target photovoltaic structure and a second suction cup for adsorbing with the lower surface of the target photovoltaic structure.

[0016] Both the first suction cup and the second suction cup are connected to an air pump;

[0017] A pressure rod is also connected to the side of the first suction cup away from the target photovoltaic structure, which is used to drive the first suction cup to apply pressure to the target photovoltaic structure.

[0018] In one optional embodiment of this application, a vision system connected to the controller is further included for acquiring edge position information of the target photovoltaic structure.

[0019] The controller is used to control the drive assembly to drive the extrusion assembly and the tape reel to move synchronously along the edge of the target photovoltaic structure based on the edge position information.

[0020] In one alternative embodiment of this application, the vision system includes a visible light camera device and an infrared positioning device.

[0021] A method for encapsulating a photovoltaic module, comprising:

[0022] Using the insulating tape encapsulation equipment described above, the insulating tape is pressurized and heated along the edge of the target photovoltaic structure to wrap the edge of the target photovoltaic structure, so as to obtain a laminate formed by the target photovoltaic structure with the insulating tape attached to its edge; wherein, the target photovoltaic structure is a laminate or a stacked part before lamination, and the target photovoltaic structure includes a front glass, a front adhesive film, a photovoltaic cell layer, a back adhesive film, and a backsheet; when the target photovoltaic structure is a stacked part, the stacked part with the insulating tape on its edge is laminated to obtain a laminate with the insulating tape on its edge;

[0023] An insulating tape is attached to the edge of the laminate to form a frame, thereby obtaining a photovoltaic module.

[0024] In one optional embodiment of this application, the insulating tape is extruded and heated along the edge of the target photovoltaic structure, comprising:

[0025] The target photovoltaic structure is fixed;

[0026] The edge position information of the target photovoltaic structural component is determined by scanning using a vision system.

[0027] The encapsulation route of the insulating tape is determined based on the edge position information;

[0028] The control extrusion assembly extrudes and presses the insulating tape along the encapsulation path onto the edge of the target photovoltaic structure.

[0029] In an optional embodiment of this application, when the extrusion assembly presses and seals the insulating tape along the encapsulation path onto the edge of the target photovoltaic structure, the method further includes:

[0030] The vision system is used to collect the position information of the extrusion component in real time;

[0031] Based on the location information, the running trajectory of the extrusion assembly is determined;

[0032] The running trajectory and the packaging route are compared to determine whether the extrusion component has a positional deviation. If so, the movement position of the extrusion component is adjusted accordingly.

[0033] The present invention provides an insulating tape encapsulation device and a photovoltaic module encapsulation method. The insulating tape encapsulation device includes: a tape reel; an extrusion assembly having at least one U-shaped clamping structure for extruding and limiting the insulating tape released from the tape reel towards the edge of a target photovoltaic structure; wherein the target photovoltaic structure is a laminate or a laminate before lamination, and the target photovoltaic structure includes a front glass, a front adhesive film, a photovoltaic cell layer, a back adhesive film, and a backsheet; a heating device for heating the insulating tape; a drive assembly connected to the tape reel and the extrusion assembly; and a controller for controlling the drive assembly to drive the extrusion assembly and the tape reel to move synchronously along the edge of the target photovoltaic structure.

[0034] The insulating tape encapsulation equipment of this application utilizes the cooperation between a tape reel, a U-shaped clamping structure, and a heating device. After the insulating tape is released from the tape reel, it is heated by the heating device and squeezed by the U-shaped clamping structure to wrap around the edge of the target photovoltaic structural component. This results in a laminated component with the insulating tape wrapped around its edge. After a frame is encapsulated on the laminate, the insulating tape fully fills the gap between the frame and the laminate, significantly improving the sealing and insulation of the photovoltaic module, thereby ensuring its performance. Furthermore, the insulating tape encapsulation equipment of this application has a relatively simple overall structure and operation, and low operating costs, improving the performance of photovoltaic modules without increasing the encapsulation difficulty. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of the insulating tape encapsulation device provided in this application embodiment is provided for reference.

[0037] Figure 2 A schematic diagram of the lateral structure for fixing the laminated parts using the fixing components provided in the embodiments of this application;

[0038] Figure 3 A cross-sectional schematic diagram of the encapsulating insulating tape for the target photovoltaic structural component provided in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of a first process for a photovoltaic module encapsulation method provided in an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of a second process for the encapsulation method of a photovoltaic module provided in an embodiment of this application;

[0041] Figure 6 A schematic diagram of a third process for the encapsulation method of a photovoltaic module provided in an embodiment of this application;

[0042] In the attached diagram, 1 is the target photovoltaic structural component, 11 is the front glass, 12 is the front encapsulant film, 13 is the photovoltaic cell layer, 15 is the back encapsulant film, 15 is the backplate, 2 is the insulating tape, 301 is the base, 302 is the bearing platform, 31 is the tape reel, 32 is the extrusion assembly, 33 is the drive assembly, 411 is the first suction cup, 412 is the second suction cup, 413 is the side baffle, 414 is the telescopic rod, and 415 is the pressure rod. Detailed Implementation

[0043] The core of this invention is to provide an insulating tape encapsulation device and a photovoltaic module encapsulation method, which can easily and quickly apply insulating tape to the edges of laminates or stacked components without increasing the encapsulation difficulty of photovoltaic modules, thereby improving the sealing and insulation performance of the final encapsulated photovoltaic module and ensuring the reliability of the photovoltaic module's working performance.

[0044] To enable those skilled in the art to better understand the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figures 1 to 3 As shown, Figure 1 A schematic diagram of the structure of the insulating tape encapsulation device provided in this application embodiment is provided for reference. Figure 2 A schematic diagram of the lateral structure for fixing the laminated parts using the fixing components provided in the embodiments of this application; Figure 3 This is a cross-sectional schematic diagram of the encapsulation insulating tape for the target photovoltaic structural component provided in the embodiments of this application.

[0046] In one specific embodiment of this application, the insulating tape encapsulation device may include:

[0047] 31 tape reel;

[0048] An extrusion assembly 32 having at least one U-shaped clamping structure for extruding and limiting the insulating tape 2 released from the tape reel 31 toward the edge of the target photovoltaic structure 1; wherein the target photovoltaic structure 1 is a laminate or a laminate before lamination, and the target photovoltaic structure 1 includes a front glass, a front adhesive film, a photovoltaic cell layer, a back adhesive film, and a back sheet.

[0049] A heating device for heating the insulating tape 2;

[0050] A drive assembly 33 connected to the tape reel 31 and the extrusion assembly 32;

[0051] A controller is used to control the drive assembly 33 to drive the extrusion assembly 32 and the tape reel 31 to move synchronously along the edge of the target photovoltaic structure 1.

[0052] Reference Figure 3 , Figure 3 The diagram shows a cross-sectional view of the target photovoltaic structure. It is understood that the structural composition of cascaded components and laminated components in photovoltaic modules is not significantly different; both include a front glass 11, a front encapsulant film 12, a photovoltaic cell layer 13, a back encapsulant film 14, and a backsheet 15, which can also be a back glass. A cascaded component is a structure formed by sequentially stacking the front glass 11, front encapsulant film 12, photovoltaic cell layer 13, back encapsulant film 14, and backsheet 15. A laminated component is formed by laminating and pressing the cascaded components together. Figure 3 The target photovoltaic structural component 1 shown can be represented as either a laminate or a stacked component in terms of its structural composition.

[0053] Based on this, such as Figure 1 As shown, the insulating tape 2 in this embodiment is a strip-shaped adhesive film structure, which allows the insulating tape 2 to be wound and stored on the tape reel 31. As the tape reel 31 rotates, the insulating tape 2 can be released from the tape reel 31. The extrusion assembly 32 presses the released insulating tape 2 against the edge of the target photovoltaic structure 1. At the same time, the heating device can further heat the insulating tape 2.

[0054] It should be noted that the insulating tape 2 in this embodiment can be any one of butyl rubber, PET rubber, silicone rubber or polyolefin rubber. Heating the insulating tape 2 can soften it to a certain extent and increase its adhesiveness. This allows the softened insulating tape 2 to better fit the edge shape of the target photovoltaic structure 1 for wrapping and sealing. On the other hand, it can also improve the adhesion between the insulating tape 2 and the target photovoltaic structure 1, that is, improve the tightness of the sealing connection between the insulating tape 2 and the target photovoltaic structure 1.

[0055] Regarding the extrusion assembly 32, in order to ensure that the insulating tape 2 can cover the upper and lower surface edges of the target photovoltaic structure 1 respectively, the extrusion assembly 32 in this embodiment can specifically be a U-shaped clamping structure, referring to... Figure 1 and Figure 3 In this embodiment, the shape and structure of the extrusion assembly 32 should match the edge contour shape of the target photovoltaic structure 1, so that the two arms of the extrusion assembly 32 can press the two sides of the insulating tape 2 against the edges of the upper and lower surfaces of the target photovoltaic structure 1, and wrap the edges of the target photovoltaic structure 1.

[0056] Based on this, such as Figure 1 As shown, in this embodiment, the extrusion assembly 32 and the tape reel 31 can be jointly mounted on the same base 301, and the base 301 is further fixedly connected to the drive assembly 33. The drive assembly 33 can synchronously drive the extrusion assembly 32 and the tape reel 31 to move synchronously by moving the base 301.

[0057] For the tape reel 31, a flange bearing can be provided on the base 301, and the shaft end of the tape reel 31 is connected to the flange bearing. Thus, as the base 301 moves along the edge of the target photovoltaic structure 1, the tape reel 31 can also rotate accordingly, thereby releasing the wound insulating tape 2. In addition, in order to accommodate the encapsulation of photovoltaic modules of different sizes and structures, the spacing between the two clamping arms of the U-shaped clamping extrusion assembly 32 is adjustable.

[0058] The heating device in this embodiment can be a heating metal sheet. Of course, this application does not exclude the use of heating devices such as ultraviolet light to heat the insulating tape 2.

[0059] Furthermore, it is understandable that as the U-shaped clamping structure moves along the edge of the target photovoltaic structure 1 and compresses the insulating tape 2, the heating device must also move synchronously to heat the insulating tape 2 wrapped around the edge of the target photovoltaic structure 1. Therefore, in this embodiment, to simplify the equipment structure, taking a heating metal sheet as an example, the heating device and the U-shaped clamping structure can be fixedly connected to each other. Specifically, the heating device can be positioned on the side of the U-shaped clamping structure opposite to its direction of movement. Clearly, the direction of movement of the U-shaped clamping structure in this embodiment is also the direction in which the driving component 33 drives the U-shaped clamping structure to move. Thus, the heating device and the U-shaped clamping structure can move synchronously along the edge of the target photovoltaic structure 1 under the drive of the driving component 33.

[0060] In practical applications, the heating device can be set up side by side on the base 301 and the U-shaped clamping structure. When the driving component 33 drives the U-shaped clamping structure to move along the edge of the target photovoltaic structure 1, the heating device located on the side of the U-shaped clamping structure opposite to its moving direction moves accordingly. During the movement, it remains in contact with the insulating tape 2 attached to the target photovoltaic structure 1, thereby achieving the purpose of heating the insulating tape 2.

[0061] In an optional embodiment of this application, in order to simplify the equipment structure, the U-shaped clamping structure on the extrusion assembly 32 can serve as a structural component for clamping the pressurized insulating tape 2, and at the same time as a heating metal sheet for heating the insulating tape 2. That is, the heating device and the U-shaped clamping structure are integrated into one structure.

[0062] In practical applications, the U-shaped clamping structure can be formed by bending a heated metal sheet, and the U-shaped clamping structure can also be connected to a power supply. As the heated metal sheet is connected to the current, it can heat up, thereby heating the insulating tape 2 that it is attached to. In other words, the U-shaped clamping structure simultaneously applies pressure and heats the insulating tape 2, attaching and wrapping it around the edge of the target photovoltaic structure 1.

[0063] In addition, in this application, the heating metal sheet can also be directly attached to the concave wall of the U-shaped clamping structure, which can also achieve the effect of simultaneously pressurizing and heating the insulating tape 2.

[0064] Based on the above discussion, in another optional embodiment of this application, the insulating tape 2 encapsulation device may further include:

[0065] The fixing assembly includes a fixing suction cup and a side baffle 413.

[0066] The fixed suction cup is used to adhere to the upper and lower surfaces of the target photovoltaic structure 1;

[0067] The side baffle 413 is used to limit the side position of the target photovoltaic structure 1, and the side of the side baffle 413 away from the target photovoltaic structure 1 is also connected to the telescopic rod 414.

[0068] It is understood that in this embodiment, when sealing the edge of the target photovoltaic structure 1 with insulating tape 2, the insulating tape 2 mainly contacts the front glass 11 and the back plate 15 in the target photovoltaic structure 1; therefore, the focus of fixing the target photovoltaic structure 1 is also on the front glass 11 and the back plate 15 in the target photovoltaic structure 1. Based on this, the fixing component in this embodiment is equipped with two different limiting and fixing structures: a fixing suction cup and a side baffle 413; the fixing suction cup can effectively prevent the front glass 11 and the back plate 15 from moving laterally by adsorbing each other with the upper and lower surfaces of the target photovoltaic structure 1; while the side baffle 413 can limit the side position of the target photovoltaic structure 1, so that the sides of the front glass 11 and the back plate 15 are flush, and the entire target photovoltaic structure 1 is prevented from shifting laterally, thereby ensuring the stability of the overall structural position of the target photovoltaic structure 1, and avoiding the influence of the lateral shift of the target photovoltaic structure 1 on the running trajectory of the extrusion component 32, effectively ensuring the accuracy of the sealing of the insulating tape 2.

[0069] In addition, to avoid the side baffles 413 obstructing the sealing of the insulating tape 2, each side baffle 413 of the target photovoltaic structure 1 is connected to a telescopic rod 414. Through the telescopic action of the telescopic rod 414, the side baffles 413 can be pushed to fit against the side of the target photovoltaic structure 1, or they can be pulled away from the side of the target photovoltaic structure 1.

[0070] Further optionally, the fixing suction cup in this embodiment may also include a first suction cup 411 for adsorbing with the upper surface of the target photovoltaic structure 1 and a second suction cup 412 for adsorbing with the lower surface of the target photovoltaic structure 1.

[0071] Both the first suction cup 411 and the second suction cup 412 are connected to an air pump;

[0072] The first suction cup 411 is also connected to a pressure rod 415 on the side away from the target photovoltaic structure 1, which is used to drive the first suction cup 411 to apply pressure to the target photovoltaic structure 1.

[0073] Reference Figure 3 and Figure 4 In this embodiment, the fixing suction cup may include a first suction cup 411 and a second suction cup 412 that are respectively adsorbed to the upper and lower surfaces of the target photovoltaic structure 1. In this embodiment, the first suction cup 411 and the second suction cup 412 can both be partially spherical bowl-shaped structures in their natural state, and both can be made of rubber.

[0074] exist Figure 3 and Figure 4In the embodiment shown, each second suction cup 412 can be laid flat on the support platform 302 with the suction cup opening facing upward; thus, each second suction cup 412 can jointly support the target photovoltaic structure 1.

[0075] To ensure the adsorption force of the first suction cup 411 and the second suction cup 412, an air pump is also connected inside the first suction cup 411 and the second suction cup 412. When the first suction cup 411 and the second suction cup 412 are respectively attached to the upper surface and the lower surface of the target photovoltaic structure 1, the air pump is used to evacuate the first suction cup 411 and the second suction cup 412, so as to ensure that the first suction cup 411 and the second suction cup 412 are firmly adsorbed to the target photovoltaic structure 1.

[0076] Based on this, in order to ensure the overall stability of the target photovoltaic structure 1, a pressure rod 415 is also connected to the first suction cup 411. The pressure rod 415 can be connected to a telescopic cylinder or other similar telescopic structure. In short, as long as the pressure rod 415 and the first suction cup 411 can apply a vertical downward pressure force to the target photovoltaic structure 1, the lateral movement of the target photovoltaic structure 1 can be further avoided.

[0077] Based on any of the above embodiments, the insulating tape 2 encapsulation device of this application may further include:

[0078] A vision system connected to the controller is used to acquire edge position information of the target photovoltaic structure 1;

[0079] The controller is used to control the drive assembly 33 to drive the extrusion assembly 32 and the tape reel 31 to move synchronously along the edge of the target photovoltaic structure 1 based on the edge position information.

[0080] The vision system in this embodiment may include a visible light camera device and an infrared positioning device.

[0081] It is understood that the visible light camera device in this embodiment is mainly used to acquire images of the target photovoltaic structure 1, and then determine the edge position information of the target photovoltaic structure 1, while the infrared positioning device is used to position the extrusion component 32, and then to calibrate and adjust the position of the extrusion component 32 in real time.

[0082] In addition, in practical applications, the vision system can also directly use a depth camera, as long as it can collect the edge position information of the target photovoltaic structure 1 and obtain the real-time position information of the extrusion component 32. This embodiment does not impose specific restrictions on this.

[0083] In summary, the insulating tape encapsulation equipment of this application utilizes the cooperation between the tape reel, the U-shaped clamping structure, and the heating device. After the insulating tape is released from the tape reel, it is heated by the heating device and squeezed by the U-shaped clamping structure to wrap around the edge of the target photovoltaic structural component. This results in a laminated component with the insulating tape wrapped around its edge. After a frame is encapsulated on the laminate, the insulating tape fully fills the gap between the frame and the laminate, significantly improving the sealing and insulation of the photovoltaic module, thereby ensuring its performance. Furthermore, the insulating tape encapsulation equipment of this application has a relatively simple overall structure and operation, and low operating costs, improving the performance of the photovoltaic module without increasing the encapsulation difficulty.

[0084] Based on the above embodiments, this application also provides an embodiment of a photovoltaic module encapsulation method, referring to... Figure 4 , Figure 4 This is a schematic flowchart of the photovoltaic module encapsulation method provided in the embodiments of this application.

[0085] In one specific embodiment of this application, the encapsulation method of the photovoltaic module may include:

[0086] S101: Using an insulating tape encapsulation device, the insulating tape is pressurized and heated along the edge of the target photovoltaic structure to wrap the edge of the target photovoltaic structure, so as to obtain a laminate with the edge of the target photovoltaic structure bonded with insulating tape.

[0087] The target photovoltaic structural component 1 is a laminate or a stacked component before lamination. The target photovoltaic structural component 1 includes a front glass 11, a front encapsulant film 12, a photovoltaic cell layer 13, a back encapsulant film 14, and a back sheet 15. When the target photovoltaic structural component 1 is a stacked component, the stacked component with insulating tape 2 on the edge is laminated to obtain a laminate with insulating tape 2 on the edge.

[0088] S102: Apply insulating tape to the edges of the target photovoltaic structural component to create a frame, thereby obtaining a photovoltaic module.

[0089] For ease of understanding of the technical solution of this application, as follows: Figure 5 and Figure 6 As shown, this application further provides embodiments of photovoltaic encapsulation methods for the target photovoltaic structural component 1, which are respectively a laminate and a stacked component.

[0090] Reference Figure 5 ,exist Figure 5 In the illustrated embodiment, the encapsulation method for a photovoltaic module with a laminated structure 1 as the target photovoltaic structural component 1 may include:

[0091] S111: The front glass, front encapsulant film, photovoltaic cell layer, back encapsulant film and back sheet are stacked in sequence to form a laminated component.

[0092] S112: Apply pressure and heat to the edge of the laminate to wrap the edge of the laminate, thereby obtaining a laminate with the edge of the laminate adhered to the insulating tape.

[0093] S113: Laminating a laminated part with insulating tape on the edge to obtain a laminated part.

[0094] S114: The edge of the laminate is sealed with insulating tape to form a frame, thereby obtaining a photovoltaic module.

[0095] Reference Figure 3 and Figure 5 In the process of encapsulating photovoltaic modules, the main structural layers, such as the front glass 11, the front encapsulating film 12, the photovoltaic cell layer 13, the back encapsulating film 14, and the backsheet (or back glass) 15, are stacked sequentially to form a laminated assembly, typically as follows: Figure 3 As shown, the front glass 11 is placed at the bottom and the back sheet 15 is at the top; however, it is understood that in practical applications, the photovoltaic module should have the front glass 11 at the top and the back sheet 15 at the bottom. Based on this, in this embodiment, the upper surface of the laminate, i.e., the surface of the back sheet 15 facing away from the back adhesive film 14, and the lower surface of the laminate, i.e., the surface of the front glass 11 facing away from the front adhesive film 12, are all opposite to the back adhesive film 14. After the insulating tape 2 is applied to the laminate, both sides of the insulating tape 2 extend from the edge of the lower surface of the laminate to the edge of the upper surface, thereby wrapping the edges of the laminate. Furthermore, the insulating tape 2 should be applied around the entire laminate.

[0096] In this embodiment, before lamination of the laminated components, an insulating tape 2 is applied around the edge of the laminated components. The insulating tape 2 is specifically a long strip of insulating adhesive, and the width of the insulating tape 2 should be greater than the thickness of the target photovoltaic structure 1. This ensures that the two sides of the insulating tape 2 cover the upper and lower surface edges of the target photovoltaic structure 1, respectively, that is, to cover and encapsulate the side between the front glass 11 and the back panel 15. Because the insulating tape 2 wraps and seals the edges of the laminate, during the lamination process, the insulating tape 2 can, to a certain extent, limit the overflow of the front adhesive film 12 and the back adhesive film 14 between the front glass 11 and the back sheet 15. Even if there is any overflow, it is completely wrapped by the insulating tape 2, and there is no unlimited overflow. Therefore, when further encapsulating the frame, there is no need to cut and remove the overflowing adhesive film. On this basis, when encapsulating the frame of the laminate, an additional layer of insulating tape 2 is added between the frame and the laminate. Since the adhesive film at the edge of the laminate is not cut and removed, the insulating tape 2 and the adhesive film together fill the gap between the laminate and the frame more fully, thereby greatly improving the sealing and insulation of the encapsulation connection between the laminate and the frame. This also improves the sealing and insulation of the encapsulation structure at the edge of the photovoltaic module, giving the photovoltaic module better performance in isolating moisture and external charges in practical applications, and thus better ensuring the reliability of the photovoltaic module's working performance.

[0097] Reference Figure 6 ,exist Figure 6 In the illustrated embodiment, the encapsulation method for a photovoltaic module with a laminated component as the target photovoltaic structural element 1 may include:

[0098] S121: The front glass, front encapsulant film, photovoltaic cell layer, back encapsulant film and back sheet are stacked in sequence to form a laminated component.

[0099] S122: Apply a sealing tape around the edge of the laminated parts.

[0100] S123: Laminating the laminated parts with edge sealing tape on the edges to obtain a laminated part.

[0101] S124: Remove the edge sealing tape from the laminate.

[0102] S125: Apply pressure and heat to the edge of the laminate to wrap the edge of the laminate, thereby obtaining a laminate with the edge of the laminate adhered to it.

[0103] S126: The edge of the laminate is sealed with insulating tape to form a frame, thereby obtaining a photovoltaic module.

[0104] It should be noted that the edge sealing tape and insulating tape in this embodiment are completely different types of tape. The edge sealing tape can be a transparent tape, mainly a type of plastic film tape, typically made of polymer materials such as polyester (PET), polypropylene (PP), or polyvinyl chloride (PVC). The purpose of this edge sealing tape is to prevent excessive overflow of the front and back adhesive films from the edges of the laminated parts during the lamination process. Because this edge sealing tape does not contribute to the sealing connection between the laminated parts and the frame, it can be removed after lamination.

[0105] After removing the sealing tape, apply a ring of insulating tape around the edge of the laminate. The application method is the same as described above. Figure 5 Similar to the embodiment shown, the insulating tape 2 extends from the upper surface edge to the lower surface edge of the laminate on both sides, thereby wrapping the edge of the laminate. And in this embodiment, as described above... Figure 5 In the embodiments shown, the insulating tape 2 can be any one of butyl rubber, PET rubber, silicone rubber, or polyolefin rubber.

[0106] Furthermore, in this embodiment, the width of the insulating tape 2 should also ensure that the width of the insulating tape 2 covering the upper surface of the laminate is greater than the width of the frame covering the upper edge of the laminate, and the width of the insulating tape 2 covering the lower edge of the laminate should also be greater than the width of the frame covering the lower edge of the laminate, thereby fully ensuring the sealing of the photovoltaic module edge.

[0107] Based on the above discussion, in another optional embodiment of this application, the process of sealing the insulating tape 2 along the edge of the target photovoltaic structure 1 may further include:

[0108] S131: Fix the target photovoltaic structural component;

[0109] S132: Use a vision system to scan and determine the edge position information of the target photovoltaic structural component;

[0110] S133: Determine the encapsulation route of the insulating tape based on the edge position information;

[0111] S134: Control the extrusion assembly to press and seal the insulating tape along the encapsulation path onto the edge of the target photovoltaic structure.

[0112] It is understood that the structural layers of the target photovoltaic structure 1 are simply stacked together. In order to avoid relative displacement between the structural layers, during the fixing process of the target photovoltaic structure 1, a certain compressive force can be applied to the upper and lower surfaces of the target photovoltaic structure 1, or a limiting structure can be set from the edge of the target photovoltaic structure 1 to restrict the lateral movement of the target photovoltaic structure 1. That is to say, the fixing of the target photovoltaic structure 1 in this embodiment may include applying a compressive force to the upper and lower surfaces of the target photovoltaic structure 1 and / or setting a limiting structure on the side of the target photovoltaic structure 1 to restrict the lateral translation of each structural layer of the target photovoltaic structure 1.

[0113] Of course, for the limiting structure that restricts the lateral translation of each structural layer of the target photovoltaic structural component 1, when it is necessary to encapsulate one side edge of the target photovoltaic structural component 1 with insulating tape 2, the limiting structure can be moved away from the side of the target photovoltaic structural component 1 that currently needs to be encapsulated with insulating tape 2, and only restrict the lateral translation of the edge that is not temporarily encapsulated with insulating tape 2.

[0114] Furthermore, when scanning the edge position information of the target photovoltaic structure 1 using a vision system, the main focus is on determining the edge contour position information of each target photovoltaic structure 1. Specifically, image recognition technology can be used to determine the location of the edge contour line of the target photovoltaic structure 1. Correspondingly, after determining the edge contour line of the target photovoltaic structure 1, the encapsulation route of the extrusion assembly 32, which is used to extrude and encapsulate the insulating tape 2 along the edge of the target photovoltaic structure 1, can also be determined; obviously, this encapsulation route is also the trajectory route of the extrusion assembly 32 moving along the edge of the target photovoltaic structure 1.

[0115] Furthermore, to ensure the accuracy of the extrusion sealing of the insulating tape 2 by the extrusion component, in another optional implementation of this embodiment, it may further include:

[0116] The position information of the extrusion component 32 is collected in real time using a vision system;

[0117] Based on the location information, determine the running trajectory of the extrusion assembly 32;

[0118] The running trajectory and the packaging route are compared to determine whether there is a positional deviation in the extrusion component 32. If so, the movement position of the extrusion component 32 is adjusted accordingly.

[0119] In this embodiment, a vision system is further used to monitor the position information of the extrusion assembly 32 in real time. Based on the real-time changes in the position information of the extrusion assembly 32, the running trajectory of the extrusion assembly 32 can be determined. It is understood that the extrusion assembly 32 should move along the edge of the insulating tape 2. Theoretically, the running trajectory of the extrusion assembly 32 should coincide with the encapsulation route determined based on the edge position information of the target photovoltaic structure 1. Therefore, in this embodiment, the running trajectory of the extrusion assembly 32 and the encapsulation route are compared. If the difference between the two is too large, it can be determined that the extrusion assembly 32 has a positional deviation. At this time, the extrusion assembly 32 can be paused and its position adjusted so that the current position of the extrusion assembly 32 returns to the encapsulation route. Then, the process of the extrusion assembly 32 moving along the edge of the target photovoltaic structure 1 to encapsulate the insulating tape 2 can be restarted. This ensures that the insulating tape 2 on the edge of the target photovoltaic structure 1 is accurately and reliably encapsulated.

[0120] In addition, when actually encapsulating the edge of the target photovoltaic structure 1 with insulating tape 2, the extrusion assembly 32 can include two or four sets. Thus, the two sets of extrusion assemblies 32 can simultaneously encapsulate the insulating tape 2 on opposite sides of the target photovoltaic structure 1, thereby accelerating the encapsulation efficiency of the insulating tape 2 to a certain extent.

[0121] Of course, when multiple sets of extrusion components 32 simultaneously encapsulate the insulating tape 2 on both sides or four sides of the target photovoltaic structure 1, it is also necessary to simultaneously monitor the running trajectory of each set of extrusion components 32 and make real-time feedback adjustments to the extrusion components 32. This will not be described in detail in this embodiment.

[0122] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that the elements inherent in a process, method, article, or apparatus that includes a list of elements are included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Additionally, portions of the technical solutions provided in the embodiments of this application that are consistent with the implementation principles of corresponding technical solutions in the prior art have not been described in detail to avoid excessive elaboration.

[0123] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An insulation tape packaging apparatus characterized by comprising: The application relates to an insulation tape packaging device. The device comprises: a tape wheel; a pressing assembly with at least one U-shaped clamping structure for pressing and limiting the insulation tape released by the tape wheel to the edge of a target photovoltaic structure; wherein the target photovoltaic structure is a laminated structure or a stacked structure before the laminated structure is laminated, and the target photovoltaic structure comprises front glass, front adhesive film, photovoltaic cell layer, back adhesive film and back plate; a heating device for heating the insulation tape; a driving assembly connected with the tape wheel and the pressing assembly; 2. The insulating tape packaging apparatus of claim 1, wherein a controller for controlling the driving assembly to drive the pressing assembly and the tape wheel to move along the edge of the target photovoltaic structure synchronously.

3. The insulating tape packaging apparatus of claim 1, wherein The heating device is a heating metal sheet; the heating device and the U-shaped clamping structure are fixedly connected with each other and located on the side of the U-shaped clamping structure away from the moving direction.

4. The insulating tape packaging apparatus of claim 1, wherein The heating device and the U-shaped clamping structure are an integrated structure; and the U-shaped clamping structure is a U-shaped heating metal sheet. The device further comprises a fixing assembly; the fixing assembly comprises a fixing suction disc and a lateral baffle; the fixing suction disc is used for adsorbing the upper and lower surfaces of the target photovoltaic structure; 5. The insulating tape packaging apparatus of claim 4, wherein the lateral baffle is used for limiting the position of the lateral edge of the target photovoltaic structure, and the side of the lateral baffle away from the target photovoltaic structure is further connected with an extension rod. The fixing suction disc comprises a first suction disc used for adsorbing the upper surface of the target photovoltaic structure and a second suction disc used for adsorbing the lower surface of the target photovoltaic structure; the first suction disc and the second suction disc are both connected with an air pump; 6. The insulating tape packaging apparatus according to any one of claims 1 to 5, wherein the side of the first suction disc away from the target photovoltaic structure is further connected with a pressurizing rod for driving the first suction disc to exert pressure on the target photovoltaic structure. The device further comprises a visual system connected with the controller and used for collecting the edge position information of the target photovoltaic structure; 7. The insulating tape packaging apparatus of claim 6, wherein the controller is used for controlling the driving assembly to drive the pressing assembly and the tape wheel to move along the edge of the target photovoltaic structure synchronously according to the edge position information.

8. A method of encapsulating a photovoltaic assembly, characterized by, The visual system comprises a visible light camera device and an infrared positioning device. The application relates to an insulation tape packaging device. The device comprises:

9. The encapsulation method of a photovoltaic module according to claim 8, wherein, a tape wheel; a pressing assembly with at least one U-shaped clamping structure for pressing and limiting the insulation tape released by the tape wheel to the edge of a target photovoltaic structure; wherein the target photovoltaic structure is a laminated structure or a stacked structure before the laminated structure is laminated, and the target photovoltaic structure comprises front glass, front adhesive film, photovoltaic cell layer, back adhesive film and back plate; a heating device for heating the insulation tape; a driving assembly connected with the tape wheel and the pressing assembly; a controller for controlling the driving assembly to drive the pressing assembly and the tape wheel to move along the edge of the target photovoltaic structure synchronously. The heating device is a heating metal sheet; the heating device and the U-shaped clamping structure are fixedly connected with each other and located on the side of the U-shaped clamping structure away from the moving direction. The heating device and the U-shaped clamping structure are an integrated structure; and the U-shaped clamping structure is a U-shaped heating metal sheet. The device further comprises a fixing assembly; the fixing assembly comprises a fixing suction disc and a lateral baffle; the fixing suction disc is used for adsorbing the upper and lower surfaces of the target photovoltaic structure; the lateral baffle is used for limiting the position of the lateral edge of the target photovoltaic structure, and the side of the lateral baffle away from the target photovoltaic structure is further connected with an extension rod. The fixing suction disc comprises a first suction disc used for adsorbing the upper surface of the target photovoltaic structure and a second suction disc used for adsorbing the lower surface of the target photovoltaic structure; the first suction disc and the second suction disc are both connected with an air pump; the side of the first suction disc away from the target photovoltaic structure is further connected with a pressurizing rod for driving the first suction disc to exert pressure on the target photovoltaic structure. The device further comprises a visual system connected with the controller and used for collecting the edge position information of the target photovoltaic structure; the controller is used for controlling the driving assembly to drive the pressing assembly and the tape wheel to move along the edge of the target photovoltaic structure synchronously according to the edge position information. The visual system comprises a visible light camera device and an infrared positioning device. The application relates to an insulation tape packaging device. The device comprises: a tape wheel; a pressing assembly with at least one U-shaped clamping structure for pressing and limiting the insulation tape released by the tape wheel to the edge of a target photovoltaic structure; wherein the target photovoltaic structure is a laminated structure or a stacked structure before the laminated structure is laminated, and the target photovoltaic structure comprises front glass, front adhesive film, photovoltaic cell layer, back adhesive film and back plate; a heating device for heating the insulation tape; a driving assembly connected with the tape wheel and the pressing assembly; a controller for controlling the driving assembly to drive the pressing assembly and the tape wheel to move along the edge of the target photovoltaic structure synchronously. The heating device is a heating metal sheet; the heating device and the U-shaped clamping structure are fixedly connected with each other and located on the side of the U-shaped clamping structure away from the moving direction. The heating device and the U-shaped clamping structure are an integrated structure; and the U-shaped clamping structure is a U-shaped heating metal sheet. The device further comprises a fixing assembly; the fixing assembly comprises a fixing suction disc and a lateral baffle; the fixing suction disc is used for adsorbing the upper and lower surfaces of the target photovoltaic structure; the lateral baffle is used for limiting the position of the lateral edge of the target photovoltaic structure, and the side of the lateral baffle away from the target photovoltaic structure is further connected with an extension rod. The fixing suction disc comprises a first suction disc used for adsorbing the upper surface of the target photovoltaic structure and a second suction disc used for adsorbing the lower surface of the target photovoltaic structure; the first suction disc and the second suction disc are both connected with an air pump; the side of the first suction disc away from the target photovoltaic structure is further connected with a pressurizing rod for driving the first suction disc to exert pressure on the target photovoltaic structure. The device further comprises a visual system connected with the controller and used for collecting the edge position information of the target photovoltaic structure; the controller is used for controlling the driving assembly to drive the pressing assembly and the tape wheel to move along the edge of the target photovoltaic structure synchronously according to the edge position information. The visual system comprises a visible light camera device and an infrared positioning device. scanning the target photovoltaic structure by a vision system to determine edge position information of the target photovoltaic structure; determining a packaging route of the insulating tape according to the edge position information; controlling an extrusion assembly to extrude and press the insulating tape on the edge of the target photovoltaic structure along the packaging route.

10. The encapsulation method of a photovoltaic module according to claim 9, wherein, when controlling the extrusion assembly to press and package the insulating tape on the edge of the target photovoltaic structure along the packaging route, further comprising: collecting position information of the extrusion assembly in real time by the vision system; determining a running track of the extrusion assembly according to the position information; comparing the running track with the packaging route to determine whether the extrusion assembly has position deviation, and if so, feeding back and adjusting the moving position of the extrusion assembly.

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