A laminated assembly and a laminating apparatus

Abstract

The application discloses a laminating assembly and a laminating device, and the laminating assembly comprises a first outer frame, a first heating plate, a first elastic sealing piece and a first floating plate, the first outer frame is sealingly arranged on the periphery of the first heating plate; the first floating plate is arranged in the first outer frame, the first floating plate is a rigid plate, and a sealed first cavity is formed between the first floating plate and the first heating plate through the first elastic sealing piece; a plurality of first air holes extending to the top surface of the first heating plate are formed on the outer side surface of the first heating plate; a plurality of second air holes are formed in the first outer frame, and the laminating assembly realizes overall hard pressing of the photovoltaic assembly, ensures that the first floating plate and the edges and corners of the photovoltaic assembly are uniformly stressed, and the phenomenon that the photovoltaic assembly is short of glue around and at the edges and corners due to a sharp increase in pressure does not occur, and the laminating quality of the photovoltaic assembly is improved.

Description

Technical Field

[0001] This application belongs to the technical field of photovoltaic cell production equipment, and particularly relates to a laminated module and lamination device. Background Technology

[0002] Downstream applications in the photovoltaic industry have increasingly higher requirements for the conversion efficiency and power of photovoltaic modules. This necessitates continuous optimization of the photovoltaic lamination process to improve lamination quality, reduce defects and bubbles inside the modules, and enhance the bonding strength between the cells and each layer of materials, thereby ensuring the high performance of the modules.

[0003] A lamination apparatus typically comprises several lamination modules arranged vertically in layers, with adjacent lamination modules capable of laminating photovoltaic (PV) modules. Each lamination module has a lamination chamber and a pressure plate located within the lamination chamber. The pressure plate divides the lamination chamber into a first chamber located on the upper side of the pressure plate and a second chamber located on the lower side of the pressure plate. During the lamination of the PV module, the PV module is first conveyed to the underside of the pressure plate. Then, the lamination apparatus is closed, and the PV module is placed in the second chamber. The PV module is then heated to melt the EVA adhesive inside. During this process, both the first and second chambers are simultaneously evacuated, removing air bubbles from the PV module located in the second chamber. Next, the first chamber is inflated, causing the pressure plate to deform downwards and compress the PV module. Ultimately, the molten EVA adhesive fills the gaps between the solar cells, glass, and backsheet, ensuring a strong bond between the solar cells, glass, and backsheet, forming a stable PV module structure.

[0004] In existing lamination devices, the pressure plates are mostly silicone plates. After the first chamber is filled with air, when the silicone plate, as a flexible material, presses down on the photovoltaic module, the peripheral area of ​​the silicone plate that is not in contact with the photovoltaic module bends and deforms downward under atmospheric pressure, thus forming a pressure surge zone at the edges of the photovoltaic module. This results in insufficient adhesive at the edges of the photovoltaic module, affecting the quality of the photovoltaic module. Moreover, as a vulnerable part, the silicone plate needs to be replaced frequently, resulting in high maintenance costs. Utility Model Content

[0005] The purpose of this application is to provide a lamination assembly to solve the aforementioned problems of existing lamination assemblies in lamination devices. In addition, another purpose of this application is to provide a lamination device including the lamination assembly.

[0006] To achieve this objective, the following technical solution is adopted in this application:

[0007] In a first aspect, this application proposes a laminated assembly comprising a first outer frame, a first heating plate, a first resilient sealant, and a first floating plate, wherein:

[0008] The first outer frame is sealed around the periphery of the first heating plate;

[0009] The first floating plate is set inside the first outer frame. The first floating plate is a rigid plate and has a horizontal bearing surface for supporting photovoltaic modules. The four edges of the first floating plate are supported above the first heating plate by the first elastic sealing member. The first floating plate and the first heating plate are enclosed by the first elastic sealing member to form a sealed first chamber.

[0010] A plurality of first vent holes are provided on the outer side of the first heating plate, and the first vent holes extend to the top surface of the first heating plate to communicate with the first chamber.

[0011] Several second vents are provided in the first outer frame and / or several third vents are provided on the outer side of the first heating plate, with the third vents extending to the bottom surface of the first heating plate.

[0012] The laminated assembly proposed in this application, when applied in a lamination device, consists of multiple laminated assemblies arranged in layers along the vertical direction. Each layer of laminated assembly is used to support photovoltaic modules. Because a first floating plate is used to support the photovoltaic modules and is made rigid, when the lamination device is closed and air is injected into the first chamber, the first floating plate floats up, causing the photovoltaic modules on the first floating plate to press against the first heating plate of the adjacent upper laminated assembly. This achieves overall rigid pressure on the photovoltaic modules. Since the first floating plate is a rigid plate with relatively high hardness, its edges will not deform when air is injected into the first chamber and the first floating plate supports the photovoltaic modules against the upper first heating plate. This ensures that the entire first floating plate remains flat during lamination, guaranteeing uniform stress on the edges and corners of the photovoltaic modules and preventing insufficient adhesive around the edges and corners due to pressure surges. This improves the lamination quality of the photovoltaic modules and extends the service life of the first floating plate. Simultaneously, it simplifies the overall structure of the laminated assembly, occupies less space, and is more compact, making it more suitable for multi-layer lamination devices with high structural compactness requirements.

[0013] Optionally, the first elastic seal includes a sealing ring and an elastic plate frame, wherein the sealing ring has an installation groove along its length, and the elastic plate frame is embedded in the installation groove.

[0014] The elastic plate can be made of thin metal sheet, and the sealing ring is made of silicone. The elastic plate has a certain degree of hardness and good deformation recovery ability compared to the sealing ring. When the elastic plate is embedded in the sealing ring, it can help the sealing ring to bounce up, so that the sealing effect of the first elastic seal is better.

[0015] Optionally, the mounting groove includes a V-shaped groove and two locking slots, with the two locking slots located on both sides of the opening of the V-shaped groove. The opening of the V-shaped groove faces the first chamber or faces away from the first chamber. The elastic plate frame includes a V-shaped plate and two folding plates. The two side plates at the ends of the V-shaped plate are folded outward and extend towards the bottom of the V-shaped plate to form folding plates. The V-shaped plate is embedded in the V-shaped groove, and the two folding plates are respectively inserted into the two locking slots.

[0016] By configuring the mounting groove to include a V-groove and the elastic plate frame to include a V-shaped plate, a simple and easy-to-manufacture mounting groove and elastic plate frame are provided. The elastic plate frame is generally V-shaped, which facilitates deformation recovery and improves the elastic performance of the first elastic seal. By configuring the mounting groove to include two locking slots and the elastic plate frame to include two folding plates, the bonding force between the elastic plate frame and the sealing ring is improved. This prevents the elastic plate frame from accidentally detaching from the sealing ring during the elastic deformation of the first elastic seal, thus extending the service life of the first elastic seal.

[0017] Optionally, the first outer frame includes a quadrilateral upper outer frame and a quadrilateral lower outer frame, and the laminated assembly further includes a second sealing ring, a third sealing ring, and a fourth sealing ring, wherein:

[0018] The upper outer frame is sealed on the periphery of the top surface of the first heating plate by a second sealing ring, and the lower outer frame is sealed on the periphery of the bottom surface of the first heating plate by a third sealing ring.

[0019] The first heating plate is clamped and fixed between the upper outer frame and the lower outer frame;

[0020] A fourth sealing ring is provided on the bottom surface of the lower outer frame.

[0021] By configuring the first outer frame to include an upper outer frame and a lower outer frame, a split-structure first outer frame is provided, which is convenient for processing and disassembly. The second and third sealing rings achieve the sealing of the contact surfaces between the first heating plate and the upper and lower outer frames, thereby ensuring the airtightness of the first chamber. By setting a fourth sealing ring, after the laminating device is closed, the fourth sealing ring in the upper laminating component is pressed against the first outer frame in the lower laminating component, so that a sealed second chamber is formed between the first heating plate of the upper laminating component and the first floating plate of the lower laminating component.

[0022] Optionally, the laminating assembly further includes a first conveyor line, which includes a first drive unit, a drive shaft, a driven shaft, and a conveyor belt, wherein:

[0023] The drive shaft is located at the first end of the first outer frame and / or the first heating plate, and the driven shaft is located at the second end of the first outer frame and / or the first heating plate. The conveyor belt is wound around the drive shaft and the driven shaft, and the conveyor belt covers the first heating plate, the first outer frame and the first floating plate. The photovoltaic module to be laminated is carried on the conveyor belt.

[0024] The first driving component is disposed on the first outer frame and / or the first heating plate and is connected to the drive shaft for transmission. The first driving component is used to drive the drive shaft to rotate so as to drive the conveyor belt to operate.

[0025] The first driving component, the drive shaft, and the driven shaft drive the conveyor belt to operate, so that the conveyor belt can automatically transport the photovoltaic modules to be laminated to the predetermined lamination position on the lamination module, and automatically output the laminated photovoltaic modules from the lamination module.

[0026] Optionally, a number of support members are provided on the top surface of the first heating plate, and the support members are located in the first cavity.

[0027] When the first chamber is evacuated, the first floating plate descends to its lowest position, and the support member can support the first floating plate. This ensures the airtightness of the first chamber and prevents all the pressure of the first floating plate from being concentrated on the first elastic seal, thereby further extending the service life of the first elastic seal.

[0028] Optionally, a gap is formed between the four edges of the first floating plate and the first outer frame.

[0029] By setting a gap between the first floating plate and the first outer frame, the first floating plate can be made to float smoothly within the first outer frame; and when the second vent is opened on the upper outer frame, the second vent is connected to the second chamber through the gap, so that the second chamber can be smoothly evacuated or inflated through the second vent.

[0030] Secondly, this application also proposes a lamination apparatus, which includes a top cover, a drive mechanism, and n lamination components, wherein:

[0031] The top cover and n laminated components are arranged in layers from top to bottom. A second heating plate is sealed on the bottom surface of the top cover, and a fifth sealing ring is arranged around the bottom surface of the second heating plate.

[0032] The drive mechanism is configured to drive the top cover and n lamination components to rise, so that adjacent lamination components, the top cover and the uppermost lamination component move away from each other to open the lamination device; the drive mechanism is also configured to drive the top cover and n lamination components to fall, so that adjacent lamination components, the top cover and the uppermost lamination component move closer to each other to close the lamination device, where n≥1.

[0033] The lamination device provided in this application consists of a top cover and n lamination components arranged vertically at intervals. When the top cover and the n lamination units are closed, the top cover, the uppermost lamination component, and the two adjacent lamination components can all perform lamination on the photovoltaic modules in between, thereby improving the lamination efficiency.

[0034] Optionally, a cushioning pad is laid on the bottom surface of both the first heating plate and the second heating plate.

[0035] By setting a buffer pad, hard contact between the photovoltaic module and the corresponding first or second heating plate is avoided during lamination, thus protecting the photovoltaic module. At the same time, the buffer pad can also compensate for the thickness difference of the photovoltaic module and the flatness error of the bearing surface of the first floating plate during the lamination of the photovoltaic module.

[0036] Optionally, the drive mechanism includes at least two lifting mechanisms and at least two transmission components, the drive end of the lifting mechanism is connected to the top cover, and the lifting mechanism is configured to drive the top cover to lift.

[0037] The transmission assembly includes a first connecting seat, n second connecting seats, and n connecting rod assemblies. The first connecting seat is fixedly installed on the top cover. The n second connecting seats are set for n laminated assemblies. The second connecting seats are fixedly installed on the first outer frame of the corresponding laminated assembly. Mounting holes are provided on both the first and second connecting seats. A connecting rod assembly is installed between the first connecting seat and the adjacent second connecting seat, and between the adjacent second connecting seats, through the mounting holes.

[0038] When the lifting mechanism drives the top cover to rise, it drives each lamination component to rise through the linkage assembly, so that adjacent lamination components move away from each other and the top cover moves away from the lamination component at the top, thereby opening the lamination device.

[0039] When the lifting mechanism drives the top cover to descend, it drives each lamination component to descend through the linkage assembly, so that adjacent lamination components and the top cover fit together with the uppermost lamination component, thereby achieving the closing of the lamination device.

[0040] The top cover is raised and lowered by a lifting mechanism. The raising and lowering of the top cover then drives the top cover, the uppermost laminating component, and the adjacent laminating components to open or close synchronously. This provides a simple, stable, and reliable drive mechanism.

[0041] Optionally, the laminating device further includes a base and a second conveyor line. The base includes a base plate, a second outer frame, a second elastic seal, and a second floating plate, wherein:

[0042] The base plate is fixedly installed below the bottommost laminated component, and the second outer frame is sealed around the periphery of the base plate;

[0043] The second floating plate is set inside the second outer frame. The four edges of the second floating plate are supported above the bottom plate by the second elastic seal. The second floating plate and the bottom plate are enclosed by the second elastic seal to form a sealed third chamber.

[0044] Several first vent holes are provided on the outer side of the base plate, and the first vent holes extend to the top surface of the base plate to communicate with the third chamber.

[0045] Several second ventilation holes are opened in the second outer frame;

[0046] The second conveyor line surrounds the outer periphery of the base and is configured to convey the photovoltaic modules to the top of the second floating plate of the base.

[0047] By using the base in conjunction with the bottom layer of laminated components, lamination of the bottom layer of photovoltaic modules is achieved, simplifying the overall structure. Attached Figure Description

[0048] Figure 1 This is a three-dimensional structural diagram of the laminated component proposed in the embodiments of this application;

[0049] Figure 2 This is a top view schematic diagram of the laminated component proposed in the embodiments of this application;

[0050] Figure 3 yes Figure 2 Schematic diagram of the cross section along the AA direction;

[0051] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0052] Figure 5 This is a cross-sectional schematic diagram of the first elastic seal of the laminated assembly proposed in the embodiments of this application;

[0053] Figure 6 This is a three-dimensional structural schematic diagram of the lamination device proposed in the embodiments of this application;

[0054] Figure 7 yes Figure 6 A magnified view of a section at point C;

[0055] Figure 8 This is a schematic diagram of the base of the laminating device proposed in the embodiments of this application.

[0056] Figures 1 to 8 The following reference numerals are included:

[0057] Laminated assembly 10: First outer frame 11, second vent 110, upper outer frame 111, lower outer frame 112, first heating plate 12, first vent 120, third vent 121, first elastic seal 13, sealing ring 130, elastic plate frame 131, V-shaped plate 1310, folding plate 1311, mounting groove 132, V-shaped groove 1320, locking seam 1321, first floating plate 14, first chamber 15, second chamber 16, second sealing ring 17A, third sealing ring 17B, fourth sealing ring 17C;

[0058] 20 photovoltaic modules;

[0059] First driving component 30, drive shaft 31, driven shaft 32, support component 33, clearance 34;

[0060] Top cover 40;

[0061] 50mm cushioning pad;

[0062] Lifting mechanism 60, transmission assembly 61, first connecting seat 62, second connecting seat 63, connecting rod assembly 64, connecting rod 640, first nut 641, second nut 642;

[0063] Base 70: base plate 71, second outer frame 72, second elastic seal 73, second floating plate 74, third chamber 75. Detailed Implementation

[0064] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0065] As described in the background section, a lamination apparatus typically includes several lamination modules arranged in vertical layers, with adjacent lamination modules capable of laminating photovoltaic modules. Each lamination module has a lamination chamber and a pressure plate located within the lamination chamber. The pressure plate divides the lamination chamber into a first chamber located on the upper side of the pressure plate and a second chamber located on the lower side of the pressure plate. During the lamination of the photovoltaic module, the photovoltaic module is first conveyed to the area below the pressure plate. Then, the lamination apparatus is closed, and the photovoltaic module is positioned in the second chamber. Subsequently, the photovoltaic module is heated to melt the EVA adhesive inside. During this process, a vacuum is simultaneously evacuated from both the first and second chambers, causing air bubbles in the photovoltaic module located in the second chamber to be extracted. Next, air is injected into the first chamber, causing the pressure plate to deform downwards and compress the photovoltaic module. Ultimately, the molten EVA adhesive fills the gaps between the cells, glass, and backsheet, ensuring that the cells, glass, and backsheet are firmly bonded together to form a stable photovoltaic module structure. In existing lamination devices, the pressure plate is mostly a silicone plate. After air is injected into the first chamber, when the silicone plate, as a flexible material, compresses the photovoltaic module downwards, the peripheral areas of the silicone plate that are not in contact with the photovoltaic module bend and deform downwards under atmospheric pressure. This creates a pressure surge zone around the edges of the photovoltaic module, resulting in insufficient adhesive around the edges and affecting the quality of the photovoltaic module. Moreover, the silicone plate is a vulnerable component that needs to be replaced frequently, resulting in high maintenance costs.

[0066] Therefore, in a first aspect, this application proposes a laminated assembly 10, please refer to... Figures 1 to 4 as well as Figure 8 As shown, the laminated assembly 10 proposed in this embodiment includes a first outer frame 11, a first heating plate 12, a first elastic seal 13, and a first floating plate 14. The first outer frame 11 is sealed around the periphery of the first heating plate 12; the first floating plate 14 is disposed inside the first outer frame 11, and the first floating plate 14 is a rigid plate with a horizontal bearing surface for supporting the photovoltaic module 20. The four edges of the first floating plate 14 are supported above the first heating plate 12 by the first elastic seal 13. A floating plate 14 and a first heating plate 12 are enclosed by a first elastic sealing member 13 to form a sealed first chamber 15; a plurality of first vent holes 120 are provided on the outer side of the first heating plate 12, and the first vent holes 120 extend to the top surface of the first heating plate 12 to communicate with the first chamber 15; a plurality of second vent holes 110 are provided in the first outer frame 11 and / or a plurality of third vent holes 121 are provided on the outer side of the first heating plate 12, and the third vent holes 121 extend to the bottom surface of the first heating plate 12.

[0067] It should be noted that when the laminating assembly 10 is installed in the laminating device, under normal use, the upper side of the first floating plate 14 forms a second chamber 16.

[0068] Specifically, the first floating plate 14 is made of metal plate with a thickness ranging from 20mm to 50mm. For example, the thickness of the first floating plate 14 is 20mm, 30mm, 31mm, ..., 39mm, 40mm, and 50mm.

[0069] As one embodiment, such as Figure 1 As shown, the first floating plate 14 of the laminating assembly 10 has three laminating regions arranged side by side. Each laminating region is used to perform a laminating operation on a photovoltaic module 20, so that the laminating assembly 10 can perform laminating on multiple photovoltaic modules 20 at the same time, thereby improving work efficiency. Of course, in other embodiments, two or other numbers of laminating regions can be set as needed.

[0070] Specifically, there can be two first vent ports 120. One first vent port 120 is connected to a vacuum pump via a first pipeline, and a first control valve is installed on the first pipeline. The other first vent port 120 is connected to the atmosphere via a second pipeline, and a second control valve is installed on the second pipeline. When it is necessary to evacuate the first chamber 15, the second control valve is closed and the first control valve is opened, allowing the vacuum pump to evacuate the first chamber 15 through the first pipeline and the first vent port. When it is necessary to fill the first chamber 15 with air, the first control valve is closed and the second control valve is opened, allowing air to be filled into the first chamber 15 through the second pipeline and the first vent port.

[0071] The first vent 120 can also be configured as a single port. The first vent 120 is connected to the vacuum pump via a third pipe. A branch pipe is installed on the third pipe, which is open to the atmosphere. A third control valve is installed on the branch pipe. When it is necessary to evacuate the first chamber 15, the third control valve is closed, and the vacuum pump can then evacuate the first chamber 15 through the third pipe. When it is necessary to fill the corresponding first chamber 15 with air, the third control valve is opened, controlling the vacuum pump to stop evacuating, and air is then introduced into the first chamber 15 through the branch pipe, the third pipe, and the first vent.

[0072] Similarly, the second vent 110 and the third vent 121 can also be configured as two or one, and their specific implementation methods can be the same as those of the first vent 120, which will not be described in detail here.

[0073] As can be seen, when the laminated component 10 proposed in this application is applied in a lamination device, multiple laminated components 10 are arranged in layers along the vertical direction. Each layer of laminated component 10 is used to support the photovoltaic module 20. Since the photovoltaic module 20 is supported by a first floating plate 14 and the first floating plate 14 is set as rigid, when the lamination device is closed, air is injected into the first chamber 15, and the first floating plate 14 floats up, causing the photovoltaic module 20 on the first floating plate 14 to press against the first heating plate 12 of the adjacent upper laminated component 10, thus achieving overall hard pressure on the photovoltaic module 20. Because the first floating plate 14 is a rigid plate, its hardness is relatively high. Therefore, when the first chamber 15 is filled with air and the first floating plate 14 supports the photovoltaic module 20 and presses it against the first heating plate 12 above, the edges of the first floating plate 14 will not deform. That is, the entire first floating plate 14 remains flat during lamination, ensuring that the corners of the photovoltaic module 20 are subjected to uniform force. This prevents the photovoltaic module 20 from having insufficient adhesive around its edges and corners due to a surge in pressure, thus improving the lamination quality of the photovoltaic module 20. In addition, the first floating plate 14 has a long service life. At the same time, it simplifies the overall structure of the laminated module 10, occupies less space, and has a compact structure, making it more suitable for use in multi-layer lamination devices with high requirements for structural compactness.

[0074] In addition, the first elastic seal 13 has a certain elasticity, which can ensure that the first elastic seal 13 pops up adaptively when the first chamber 15 is inflated, or that the first elastic seal 13 is pressed down adaptively when the first chamber 15 is deflated, so as to ensure the sealing of the first chamber 15.

[0075] Please see Figure 4 and Figure 5 As shown, in one embodiment, the first elastic seal 13 includes a sealing ring 130 and an elastic plate frame 131. The sealing ring 130 has an installation groove 132 formed inside along the length direction, and the elastic plate frame 131 is embedded in the installation groove 132.

[0076] Among them, the elastic plate 131 can be made of thin metal sheet, and the sealing ring 130 is made of silicone. The elastic plate 131 has a certain hardness and good deformation recovery ability compared to the sealing ring 130. In this way, the elastic plate 131 can be embedded in the sealing ring 130 to help the sealing ring 130 bounce up, so that the sealing effect of the first elastic sealing element 13 is better.

[0077] In one embodiment, the mounting groove 132 includes a V-shaped groove 1320 and two locking slots 1321. The two locking slots 1321 are located on both sides of the opening of the V-shaped groove 1320. The opening of the V-shaped groove 1320 faces the first chamber 15 or faces away from the first chamber 15. The elastic plate frame 131 includes a V-shaped plate 1310 and two folding plates 1311. The two side plates at the ends of the V-shaped plate 1310 are folded outward and extended toward the bottom of the V-shaped plate to form folding plates 1311. The V-shaped plate 1310 is embedded in the V-shaped groove 1320, and the two folding plates 1311 are respectively inserted into the two locking slots 1321.

[0078] As can be seen, by configuring the mounting groove 132 to include a V-shaped groove 1320 and the elastic plate frame 131 to include a V-shaped plate 1310, a mounting groove 132 and an elastic plate frame 131 with a simple structure and easy processing are provided. The elastic plate frame 131 is generally V-shaped, which is conducive to the recovery of deformation, thus improving the elastic performance of the first elastic seal 13. By configuring the mounting groove 132 to include two locking slots 1321 and configuring the elastic plate frame 131 to include two folding plates 1311, the folding plates 1311 are inserted into the corresponding locking slots 1321, which improves the bonding force between the elastic plate frame 131 and the sealing ring 130, and prevents the elastic plate frame 131 from accidentally detaching from the sealing ring 130 during the elastic deformation of the first elastic seal 13, thus extending the service life of the first elastic seal 13.

[0079] In one embodiment, the first outer frame 11 includes a quadrilateral upper outer frame 111 and a quadrilateral lower outer frame 112. The laminated assembly 10 also includes a second sealing ring 17A, a third sealing ring 17B, and a fourth sealing ring 17C. The upper outer frame 111 is sealed to the periphery of the top surface of the first heating plate 12 by the second sealing ring 17A, and the lower outer frame 112 is sealed to the periphery of the bottom surface of the first heating plate 12 by the third sealing ring 17B. The first heating plate 12 is clamped and fixed between the upper outer frame 111 and the lower outer frame 112. A fourth sealing ring 17C is provided on the bottom surface of the lower outer frame 112.

[0080] As can be seen, by setting the first outer frame 11 to include an upper outer frame 111 and a lower outer frame 112, a split-structure first outer frame 11 is provided, which is convenient for processing and disassembly; the second sealing ring 17A and the third sealing ring 17B are used to seal the contact surfaces between the first heating plate 12 and the upper outer frame 111 and the lower outer frame 112, thereby ensuring the airtightness of the first chamber 15; after the laminating device is closed, the fourth sealing ring 17C in the upper laminating assembly 10 is pressed onto the first outer frame 11 in the lower laminating assembly 10, so that a sealed second chamber 16 is formed between the first heating plate 12 of the upper laminating assembly 10 and the first floating plate 14 of the lower laminating assembly 10.

[0081] Please see Figure 1 and Figure 4 As shown, in one embodiment, the laminating assembly 10 further includes a first conveyor line, which includes a first drive member 30, a drive shaft 31, a driven shaft 32, and a conveyor belt (not shown in the figure). The drive shaft 31 is disposed at the first end of the first outer frame 11 and / or the first heating plate 12, and the driven shaft 32 is disposed at the second end of the first outer frame 11 and / or the first heating plate 12. The conveyor belt is wound around the drive shaft 31 and the driven shaft 32, and covers the first heating plate 12, the first outer frame 11, and the first floating plate 14. The photovoltaic module 20 to be laminated is carried on the conveyor belt. The first drive member 30 is disposed on the first outer frame 11 and / or the first heating plate 12 and is connected to the drive shaft 31 for transmission. The first drive member 30 is used to drive the drive shaft 31 to rotate, so as to drive the conveyor belt to operate.

[0082] Specifically, the first drive component 30 may be, for example, a servo motor, and the conveyor belt may be a high-temperature fabric made of high-temperature resistant material.

[0083] Specifically, the drive shaft 31 and the driven shaft 32 are connected by a transmission assembly consisting of a chain and a sprocket.

[0084] As can be seen, the first driving component 30, the drive shaft 31, and the driven shaft 32 drive the conveyor belt to operate, enabling the conveyor belt to automatically transport the photovoltaic module 20 to be laminated to the predetermined lamination position on the lamination assembly 10, and to automatically output the laminated photovoltaic module 20 from the lamination assembly 10. Figure 2 In the middle, three photovoltaic modules 20 are arranged at intervals on the conveyor belt above the first floating plate 14, corresponding to the conveyor belt body, along the conveying direction of the conveyor belt (from left to right).

[0085] In one embodiment, a plurality of support members 33 are provided on the top surface of the first heating plate 12, and the support members 33 are located in the first chamber 15.

[0086] Specifically, the support member 33 consists of several protruding ridges that are parallel to and protrude from the top surface of the first heating plate 12.

[0087] When the first chamber 15 is evacuated, the first floating plate 14 descends to a low position, and the support member 33 can support the first floating plate 14. This ensures the airtightness of the first chamber 15 and prevents all the pressure of the first floating plate 14 from being concentrated on the first elastic seal 13, thereby further extending the service life of the first elastic seal 13.

[0088] In one implementation, a gap 34 is formed between the four edges of the first floating plate 14 and the first outer frame 11.

[0089] It can be seen that by setting a gap 34 between the first floating plate 14 and the first outer frame 11, the first floating plate 14 can float smoothly within the first outer frame 11; and when the second vent 110 is opened on the upper outer frame 111, the second vent 110 is connected to the second chamber 16 through the gap 34, so that the second chamber 16 can be smoothly evacuated or inflated through the second vent 110.

[0090] The laminated module 10 of this application can be applied to single-layer lamination devices and multi-layer lamination devices. The single-layer lamination device is used to laminate a single-layer photovoltaic module, and the multi-layer lamination device is used to laminate multiple layers of photovoltaic modules. When the laminated module 10 is applied to a multi-layer lamination device, its general working process is as follows:

[0091] Control the opening of the multi-layer lamination device to separate adjacent lamination components 10;

[0092] The photovoltaic modules to be laminated are transported to each laminating module 10, meaning that each laminating module 10 carries a photovoltaic module 20. Furthermore, a vacuum is drawn into the first chamber 15 of each laminating module 10 through the first vent 120, causing the first floating plate 14 of each laminating module 10 to move downwards to a certain extent. This ensures that the height of the second chamber 16 of each laminating module 10 is sufficient to accommodate the photovoltaic module 20, preventing the photovoltaic module 20 from prematurely contacting the first heating plate 12.

[0093] Subsequently, the multilayer lamination device is closed, so that adjacent lamination components 10 are stacked; the second chamber 16 is closed by the lamination component 10 above it, and the photovoltaic module 20 is located in the closed second chamber 16;

[0094] Next, the second chamber 16 is evacuated through the second vent 110 or the third vent 121; at the same time, the first heating plate 12 of each laminated component 10 heats the photovoltaic module 20, causing the encapsulant film in the photovoltaic module 20 to melt and the air bubbles in the photovoltaic module 20 to be extracted.

[0095] Next, the first chamber 15 stops being evacuated and is filled with air through the first vent 120. The second chamber 16 remains evacuated. Since the lower side of the first floating plate 14 is under positive pressure and the upper side is under negative pressure, the first floating plate 14 moves upward, causing the first heating plate 12 to support the photovoltaic module 20 and press it against the upper first heating plate 12, thus achieving lamination of the photovoltaic module 20.

[0096] Finally, after laminating the photovoltaic module 20, the first chamber 15 stops being filled with gas and is evacuated through the first vent 120. The second chamber 16 stops being evacuated and is filled with gas to standard atmospheric pressure through the second vent 110 or the third vent 121, and the laminating device is opened.

[0097] The laminated assembly 10 proposed in this application has the following advantages:

[0098] 1) The overall structure is simple, occupies little space, and is more suitable for use in multi-layer lamination devices with high requirements for structural compactness;

[0099] 2) The overall hard pressing of the photovoltaic module 20 was achieved, ensuring that the first floating plate 14 and the corners of the photovoltaic module 20 were subjected to uniform force, and that there would be no phenomenon of missing glue around the edges and corners of the photovoltaic module due to the surge in pressure, thus improving the lamination quality of the photovoltaic module 20.

[0100] 3) It can automatically transport and output 20 photovoltaic modules, with a high degree of automation;

[0101] Secondly, this application proposes a lamination apparatus, please refer to... Figure 6 As shown, the laminating device proposed in this application includes a top cover 40, a driving mechanism, and n laminating components 10. The top cover 40 and the n laminating components 10 are arranged in layers from top to bottom. A second heating plate is sealed on the bottom surface of the top cover 40, and a fifth sealing ring is arranged around the bottom surface of the second heating plate. The driving mechanism is configured to drive the top cover 40 and the n laminating components 10 to rise, so that adjacent laminating components 10, the top cover 40, and the uppermost laminating component 10 move away from each other to open the laminating device. The driving mechanism is also configured to drive the top cover 40 and the n laminating components 10 to fall, so that adjacent laminating components 10, the top cover 40, and the uppermost laminating component 10 move closer to each other to close the laminating device, where n≥1.

[0102] The lamination device provided in this application consists of a top cover 40 and n lamination components 10 arranged vertically at intervals. When the top cover 40 and the n lamination units 10 are closed, the top cover 40, the uppermost lamination component 10, and the two adjacent lamination components 10 can all laminate the photovoltaic module 20 between them, thereby improving the lamination efficiency.

[0103] Please see Figure 4 As shown, in one embodiment, a buffer pad 50 is laid on the bottom surface of both the first heating plate 12 and the second heating plate.

[0104] The first heating plate 12 and the second heating plate can be heated by embedding heating elements such as heating rods inside the plates.

[0105] Specifically, the cushioning pad 50 can be made of other flexible materials such as silicone or felt.

[0106] As can be seen, by setting the buffer pad 50, hard contact between the photovoltaic module 20 and the corresponding first heating plate 12 or second heating plate is avoided during lamination, thus protecting the photovoltaic module 20; at the same time, the buffer pad 50 can also compensate for the thickness difference of the photovoltaic module 20 and the flatness error of the bearing surface of the first floating plate 14 during the lamination of the photovoltaic module 20.

[0107] Please see Figures 6 to 8 As shown, in one embodiment, the driving mechanism includes at least two lifting mechanisms 60 and at least two transmission assemblies 61. The driving end of the lifting mechanism 60 is connected to the top cover 40, and the lifting mechanism 60 is configured to drive the top cover 40 to lift. The transmission assembly 61 includes a first connecting seat 62, n second connecting seats 63, and n connecting rod assemblies 64. The first connecting seat 62 is fixedly installed on the top cover 40, and the n second connecting seats 63 are arranged corresponding to the n laminated assemblies 10. The second connecting seats 63 are fixedly installed on the first outer frame 11 of the corresponding laminated assembly 10. Mounting holes are provided on both the first connecting seat 62 and the second connecting seat 63. A connecting rod assembly 64 is installed between the connecting seat 62 and the adjacent second connecting seat 63, and between the adjacent second connecting seats 63, through mounting holes. When the lifting mechanism 60 drives the top cover 40 to rise, it drives each laminating component 10 to rise through the connecting rod assembly 64, so that the adjacent laminating components 10 are separated and the top cover 40 and the uppermost laminating component 10 are separated from each other, thereby opening the laminating device. When the lifting mechanism 60 drives the top cover 40 to fall, it drives each laminating component 10 to fall through the connecting rod assembly 64, so that the adjacent laminating components 10 and the top cover 40 and the uppermost laminating component 10 are in contact, thereby closing the laminating device.

[0108] Specifically, the connecting rod assembly 64 includes a connecting rod 640, a first nut 641, and a second nut 642. Both the upper and lower ends of the connecting rod 640 are provided with external thread sections. The upper end of the connecting rod 640 extends out of the mounting hole of the corresponding first connecting seat 62 or second connecting seat 63, and the lower end of the connecting rod 640 extends out of the mounting hole of the corresponding second connecting seat 63. The first nut 641 and the second nut 642 are respectively installed on the upper and lower ends of the connecting rod 640. The first nut 641 and the second nut 642 limit the upper and lower ends of the connecting rod 640, thereby realizing the linkage between the first connecting seat 62 and the adjacent second connecting seat 63, and between adjacent second connecting seats 63.

[0109] Specifically, the driving mechanism includes six lifting mechanisms 60 and six transmission components 61. Each lifting mechanism 60 corresponds to one transmission component 61. Three of the lifting mechanisms 60 are located on the first side of the top cover 40 and the n laminated components 10, and the remaining three lifting mechanisms 60 are located on the second side of the top cover 40 and the n laminated components 10. The six lifting mechanisms 60, in conjunction with the six transmission components 61, drive the top cover 40 and the n laminated components 10 to rise or fall. Of course, in other embodiments, other numbers of lifting mechanisms 60 can be provided, and the positions of each lifting mechanism 60 can be reasonably distributed, as long as they can stably drive the top cover 40 and the n laminated components 10 to rise or fall.

[0110] Specifically, the lifting mechanism 60 includes a lifting drive component and a connecting seat. The connecting seat is fixedly connected to the top cover 40. The driving end of the lifting drive component is connected to the connecting seat. The lifting drive component can be a hydraulic cylinder or other drive component.

[0111] As can be seen, the lifting mechanism 60 drives the top cover 40 to rise and fall, and the rising and falling of the top cover 40, in turn, drives the top cover 40 and the uppermost laminating component 10 and adjacent laminating components 10 to open or close synchronously through the transmission component 61, providing a simple and stable driving mechanism.

[0112] In one embodiment, the laminating device further includes a base 70 and a second conveyor line. The base 70 includes a base plate 71, a second outer frame 72, a second elastic seal 73, and a second floating plate 74. The base plate 70 is fixedly disposed below the lowest layer of the laminating assembly 10. The second outer frame 72 is sealed around the periphery of the base plate 70. The second floating plate 74 is disposed inside the second outer frame 72. The four edges of the second floating plate 74 are supported above the base plate 71 by the second elastic seal 73. The second floating plate 74 and the base plate 71 are enclosed by the second elastic seal 73 to form a sealed third chamber 75. A plurality of first vent holes are opened on the outer surface of the base plate 71, and the first vent holes extend to the top surface of the base plate 71 to communicate with the third chamber 75. A plurality of second vent holes are opened in the second outer frame 72. The second conveyor line surrounds the outer periphery of the base 70 and is configured to convey the photovoltaic module 20 to the top of the second floating plate 74 of the base 70.

[0113] The first floating plate 14 and the second floating plate 74 have the same structure, the second elastic seal 73 has the same structure as the first elastic seal 13, and the second conveyor line has the same structure as the first conveyor line. The third chamber 75 and the first chamber 15 are evacuated and inflated synchronously, and they have the same function. That is, when the third chamber 75 is inflated, it can push the second floating plate 74 upward to laminate the photovoltaic modules on the base 70.

[0114] Specifically, the second outer frame 72 adopts a quadrilateral integral frame.

[0115] As can be seen, by using the base 70 in conjunction with the bottom laminated module 10, lamination of the bottom photovoltaic module 10 is achieved, simplifying the overall structure.

[0116] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A laminated assembly, characterized in that, The laminated assembly includes a first outer frame, a first heating plate, a first elastic seal, and a first floating plate, wherein: The first outer frame is sealed around the periphery of the first heating plate; The first floating plate is disposed within the first outer frame. The first floating plate is a rigid plate and has a horizontal bearing surface for supporting photovoltaic modules. The four edges of the first floating plate are supported above the first heating plate by the first elastic sealing member. The first floating plate and the first heating plate are enclosed by the first elastic sealing member to form a sealed first chamber. A plurality of first vent holes are provided on the outer side of the first heating plate, and the first vent holes extend to the top surface of the first heating plate to communicate with the first chamber. A plurality of second vent holes are provided in the first outer frame and / or a plurality of third vent holes are provided on the outer side of the first heating plate, the third vent holes extending to the bottom surface of the first heating plate.

2. The laminated assembly according to claim 1, characterized in that, The first elastic seal includes a sealing ring and an elastic plate frame. The sealing ring has an installation groove along its length, and the elastic plate frame is embedded in the installation groove.

3. The laminated assembly according to claim 2, characterized in that, The mounting groove includes a V-shaped groove and two locking slots, which are located on both sides of the opening of the V-shaped groove. The opening of the V-shaped groove faces the first chamber or is away from the first chamber. The elastic plate frame includes a V-shaped plate and two folding plates. The two side plates at the ends of the V-shaped plate are folded outward and extend towards the bottom of the V-shaped plate to form the folding plates. The V-shaped plate is embedded in the V-shaped groove, and the two folding plates are respectively inserted into the two locking slots.

4. The laminated assembly according to claim 1, characterized in that, The first outer frame includes a quadrilateral upper outer frame and a quadrilateral lower outer frame, and the laminated assembly further includes a second sealing ring, a third sealing ring, and a fourth sealing ring, wherein: The upper outer frame is sealed on the periphery of the top surface of the first heating plate by the second sealing ring, and the lower outer frame is sealed on the periphery of the bottom surface of the first heating plate by the third sealing ring. The first heating plate is clamped and fixed between the upper outer frame and the lower outer frame; A fourth sealing ring is provided on the bottom surface of the lower outer frame.

5. The laminated assembly according to claim 1, characterized in that, The lamination assembly further includes a first conveyor line, which comprises a first drive element, a drive shaft, a driven shaft, and a conveyor belt, wherein: The drive shaft is located at the first end of the first outer frame and / or the first heating plate, the driven shaft is located at the second end of the first outer frame and / or the first heating plate, the conveyor belt is wound around the drive shaft and the driven shaft, the conveyor belt covers the first heating plate, the first outer frame and the first floating plate, and the photovoltaic module to be laminated is carried on the conveyor belt; The first driving component is disposed on the first outer frame and / or the first heating plate and is connected to the drive shaft for transmission. The first driving component is used to drive the drive shaft to rotate so as to drive the conveyor belt to operate.

6. The laminated assembly according to claim 1, characterized in that, Several support members are provided on the top surface of the first heating plate, and the support members are located in the first cavity.

7. The laminated assembly according to claim 1, characterized in that, A gap is formed between the four edges of the first floating plate and the first outer frame.

8. A lamination apparatus, characterized in that, The lamination apparatus includes a top cover, a drive mechanism, and n lamination components as described in any one of claims 1-7, wherein: The top cover and n laminated components are arranged in layers from top to bottom. A second heating plate is sealed on the bottom surface of the top cover, and a fifth sealing ring is arranged around the bottom surface of the second heating plate. The driving mechanism is configured to drive the top cover and n laminating components to rise, such that adjacent laminating components, the top cover, and the uppermost laminating component move away from each other to open the laminating device; the driving mechanism is also configured to drive the top cover and n laminating components to fall, such that adjacent laminating components, the top cover, and the uppermost laminating component fit together to close the laminating device, where n≥1.

9. The laminating apparatus according to claim 8, characterized in that, Both the first heating plate and the second heating plate have a cushioning pad on their bottom surfaces.

10. The laminating apparatus according to claim 8, characterized in that, The drive mechanism includes at least two lifting mechanisms and at least two transmission components. The drive end of the lifting mechanism is connected to the top cover, and the lifting mechanism is configured to drive the top cover to rise and fall. The transmission assembly includes a first connecting seat, n second connecting seats, and n connecting rod assemblies. The first connecting seat is fixedly installed on the top cover. The n second connecting seats are arranged corresponding to the n laminated assemblies. The second connecting seats are fixedly installed on the first outer frame of the corresponding laminated assembly. Mounting holes are provided on both the first connecting seat and the second connecting seat. A connecting rod assembly is installed between the first connecting seat and the adjacent second connecting seat, and between the adjacent second connecting seats, through the mounting holes. When the lifting mechanism drives the top cover to rise, it drives each of the laminating components to rise through the linkage assembly, so that adjacent laminating components move away from each other and the top cover and the uppermost laminating component move away from each other, thereby opening the laminating device; When the lifting mechanism drives the top cover to descend, the connecting rod assembly drives each of the laminating components to descend, so that the adjacent laminating components and the top cover fit together with the uppermost laminating component, thereby achieving the closing of the laminating device.

11. The laminating apparatus according to claim 8, characterized in that, The laminating device further includes a base and a second conveyor line. The base includes a base plate, a second outer frame, a second elastic seal, and a second floating plate, wherein: The base plate is fixedly installed below the lowest layer of the laminated assembly, and the second outer frame is sealed around the periphery of the base plate; The second floating plate is disposed within the second outer frame. The four edges of the second floating plate are supported above the bottom plate by the second elastic seal. The second floating plate and the bottom plate are enclosed by the second elastic seal to form a sealed third chamber. A plurality of first vent holes are provided on the outer side of the base plate, and the first vent holes extend to the top surface of the base plate to communicate with the third chamber. Several second ventilation holes are opened in the second outer frame; The second conveyor line surrounds the outer periphery of the base and is configured to convey the photovoltaic module above a second floating plate of the base.

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