Laminating and curing production line for photovoltaic module

Abstract

The utility model aims to provide a photovoltaic module laminating and curing production line aiming at the defects of long production period and low production efficiency of a laminating machine and a laminating process in the prior art, and the photovoltaic module laminating and curing production line comprises a degassing unit, a laminating and curing unit and a transmission unit, and the degassing unit is used for heating and pressurizing the photovoltaic module in a vacuum environment so as to remove bubbles generated when the adhesive is melted and gas remained among layers of the photovoltaic module, and by adopting the photovoltaic module laminating and curing production line with the structure, the original laminating and curing unit is divided into the pre-curing unit and the curing unit, so that the production efficiency is improved, and the production cost is reduced. The pre-curing unit and the curing unit are respectively provided with a pre-curing cavity and a curing cavity, and the assembly completes pre-crosslinking pre-curing in the pre-curing cavity and completes crosslinking curing in the curing cavity, so that the process time can be reasonably distributed, the lamination curing time is integrally shortened, and the production takt is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module lamination technology, and in particular to a photovoltaic module lamination and curing production line. Background Technology

[0002] Photovoltaic modules typically consist of a substrate, a cover plate, and solar cells. The solar cells are positioned between the substrate and the cover plate, and an adhesive or glue is used to bond the solar cells to the substrate, solar cells, and cover plate. Currently, EVA wax is a commonly used adhesive material. To ensure a firm bond between the substrate, cover plate, and solar cells, a laminator is used for heating and pressing. During pressing, air bubbles between the layers and gases released during the curing process of the adhesive are removed.

[0003] Currently, the lamination process for photovoltaic modules is as follows: After the photovoltaic modules are transported to the laminator, they are first degassed in a vacuum environment; this stage is called the degassing stage. Then, under vacuum, the adhesive is heated and pressurized to cure; this is called the lamination curing stage. In the degassing stage, the photovoltaic modules are heated to a molten state, and the lamination chamber of the laminated photovoltaic modules is evacuated. Heating, evacuating, and pressurizing are carried out simultaneously until the bubbles generated after the adhesive melts and the bubbles between the layers are basically emptied, completing the degassing process. This process typically takes 4-6 minutes. In the lamination curing stage, the vacuum state is maintained, and heating and pressurization are applied until the curing temperature of the adhesive is reached and the pressure is maintained to press the layers together. The curing time varies depending on the adhesive used, but the lamination time is generally around 10-25 minutes. Therefore, the total lamination time for photovoltaic modules is 14-30 minutes. Degassing and lamination curing of photovoltaic modules can be completed in the same chamber or in two different chambers. When done in two chambers, degassing occurs in one chamber, and lamination curing in the other. During degassing, vacuuming and pressurization primarily remove air bubbles between layers. During lamination curing, vacuuming removes any remaining air bubbles and prevents residual gas from entering the interlayer spaces. Using a two-chamber lamination process results in a longer vacuum curing time, as vacuum degassing requires waiting for the lamination process, slowing down the overall process cycle and reducing production efficiency. Using a single-chamber lamination process further increases the lamination time and reduces production efficiency even more. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing laminators and lamination processes, such as long production cycles and low production efficiency, by providing a photovoltaic module lamination and curing production line.

[0005] The technical solution to the technical problem solved by this utility model is as follows:

[0006] A photovoltaic module lamination and curing production line includes a degassing unit, a lamination and curing unit, and a transfer unit. The degassing unit is used to heat and pressurize the photovoltaic module in a vacuum environment to remove bubbles generated when the adhesive melts and gases remaining between the layers of the photovoltaic module. The lamination and curing unit includes a pre-curing unit and a curing unit, which are arranged sequentially. The pre-curing unit provides a vacuum environment for the photovoltaic module and heats it to achieve pre-bonding and pre-curing of the adhesive, and removes residual gases from the photovoltaic module by pressurization. The curing unit heats the photovoltaic module to complete the bonding of the adhesive. The photovoltaic module degassed by the degassing unit is transferred to the pre-curing unit through the transfer unit. The photovoltaic module that has completed pre-bonding and pre-curing in the pre-curing unit is transferred to the curing unit. The photovoltaic module that has completed bonding and curing in the curing unit is transferred out.

[0007] The degassing unit and pre-curing unit each include a lamination device. The lamination device includes an upper box, a pressure-applying component, a pressure-applying component drive device, a worktable, and a photovoltaic module heating device. The upper box is located above the worktable and can be moved up and down by external force to adjust the distance between the upper box and the worktable. The pressure-applying component is located between the upper box and the worktable. The pressure-applying component drive device is fixed to the upper box, and its output end is fixedly connected to the upper surface of the pressure-applying component. The lower surface of the pressure-applying component is opposite to the worktable. The upper box can move up and down under external force. When the upper box descends to the position of the worktable... After closing, the upper box and the workbench form a sealed cavity through a sealing assembly. The sealed cavity is provided with a communication structure for connecting with the vacuum device and the gas filling device. When the sealed cavity is used in the degassing unit, it is called the degassing cavity; when it is used in the pre-curing unit, it is called the pre-curing cavity. The curing unit includes the upper box and the workbench. The upper box can move up and down under external force. When it meets the workbench, it forms a closed cavity that constitutes the curing cavity. Heating devices for heating the photovoltaic module are respectively provided in the degassing cavity, the pre-curing cavity, and the curing cavity. The curing cavity is a sealed cavity.

[0008] The curing unit includes two or more curing cavities, and each curing cavity is arranged vertically to form a stacked structure. A lifting and conveying device is provided between the pre-curing unit and the curing unit. The photovoltaic module transmitted from the pre-curing unit is transferred to the curing cavity located at different heights through the lifting and conveying device.

[0009] The upper chamber of the lower curing chamber is fixedly connected to or integrated with the worktable of the upper curing chamber.

[0010] A feeding unit is provided before the degassing unit. The feeding unit is equipped with a heating device that can heat the photovoltaic module and transfer the heated photovoltaic module to the degassing unit.

[0011] The feeding unit includes a hot air chamber consisting of a feeding conveyor and an upper box. The hot air chamber is sealed and connected to the degassing chamber through a hot air circulation device. The hot air circulation device can collect the residual heat in the degassing chamber and transport it to the heat-sealed chamber, and then return the cooled gas in the heat-sealed chamber to the degassing chamber.

[0012] A cooling unit is provided after the curing unit, and a lifting and conveying device is provided between the two. The conveying component of the lifting and conveying device can rise or fall to receive photovoltaic modules located in curing chambers at different heights and convey them to the cooling unit.

[0013] A lifting and conveying device is provided after the cooling unit, which can transport the photovoltaic modules that have been cooled and solidified by the stacked cooling unit.

[0014] The advantages and beneficial effects of this utility model are as follows:

[0015] The photovoltaic module lamination and curing production line using the structure of this utility model divides the original lamination and curing unit into a pre-curing unit and a curing unit. The pre-curing unit and the curing unit each have a pre-curing cavity and a curing cavity, respectively. The module completes pre-adhesion curing in the pre-curing cavity and cross-linking curing in the curing cavity. Therefore, the process time can be reasonably allocated, the overall lamination and curing time can be shortened, and the production cycle can be improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the lamination production line of this utility model;

[0017] Figure 2 This is a schematic diagram of another embodiment of the lamination production line of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of an embodiment of the stacked curing unit of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the lamination device;

[0020] Figure 5 This is a process curve diagram showing the temperature and time during the lamination process of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 100-Feeding Unit;

[0023] 200-Degassing Unit;

[0024] 300 - Pre-cured unit;

[0025] 400 - Lifting and Conveying Unit 1;

[0026] 500 - Curing unit; 501 - Crosslinking curing chamber

[0027] 600-Lifting and Conveying Unit 2;

[0028] 700-Cooling Unit;

[0029] 1-Laminating device; 11-Pressure application component; 12-Pressure application component drive device; 14-Upper box; 15-Workbench; 16-Working chamber; 17-Sealing cover Detailed Implementation

[0030] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0031] The photovoltaic module production line of this embodiment includes a degassing unit 200, a pre-curing unit 300, and a curing unit 500. The degassing unit, pre-curing unit, and curing unit are arranged sequentially. Both the degassing unit and the pre-curing unit include a laminating device for heating and pressurizing the photovoltaic modules. The laminating device includes a pressure-applying component, a pressure-applying component drive device, a worktable, and an upper box. The photovoltaic modules are placed on the worktable. The pressure-applying component drive device is fixedly supported by the upper box. The pressure-applying component is located inside the upper box, between the worktable and the upper box. The pressure-applying component... One end face is located on the output end of the pressure-applying drive device, and the other end face of the pressure-applying component faces the worktable. Under the drive of the pressure-applying drive device, the pressure-applying component can move towards or away from the worktable. Under external force, the upper box can drive the pressure-applying component and the pressure-applying drive device to move towards or away from the worktable, thereby adjusting the distance between the pressure-applying component and the worktable. When moving away from the worktable, it makes way for the transmission component; when moving towards the worktable, it brings the pressure-applying component closer to the component, reducing the output stroke of the pressure-applying drive device. The upper box and the worktable are not sealed, forming a working cavity 16. Heating devices can be installed in the upper box, and / or the worktable, and / or the pressure-applying component to provide heat to the component. For ease of description, the lamination device used in the degassing unit is called a degassing lamination device, and the lamination device used in the pre-curing unit is called a pre-curing lamination device. The degassing unit also includes a sealing component, which is located at the lower end of the upper box of the degassing lamination device. When the upper box is driven downward by external force, the upper box can close through the sealing component and the worktable to form a sealed degassing cavity. The degassing sealing cavity typically has a gas communication structure on its upper chamber for connecting to the vacuum device and the gas filling device. This gas communication structure allows the degassing unit to not only heat and pressurize the photovoltaic modules but also to evacuate or fill the degassing sealing cavity, completing the vacuum degassing and pre-lamination of the photovoltaic modules. The lower end of the upper chamber of the pre-curing unit 300 may or may not have a sealing component. When the pre-curing unit requires vacuuming according to process requirements, a sealing component must be installed on the lower end face of the upper chamber. When the upper chamber moves downwards, it can close with the worktable through the sealing component to form a sealed cavity, called the pre-curing sealing cavity. A second connection structure for connecting to the vacuum device and the gas filling device is provided on the pre-curing sealing cavity.

[0032] The curing unit includes a workbench and an upper chamber. A conveyor belt (not shown in the diagram) surrounds the workbench. The upper chamber, driven by its mechanism, can meet and close with the workbench to form a cross-linking curing chamber. This closing process is called "closing the lid," while the separation is called "opening the lid." A heating device is installed to heat the cross-linking curing chamber and raise the temperature of the modules. The number of stations within the cross-linking curing chamber can be N times the number of stations in the pre-curing unit. This allows the cross-linking curing chamber to receive batches of photovoltaic modules from the pre-curing unit multiple times, moving forward in segments via the conveyor belt. Each segment must accommodate the distance covered by the number of photovoltaic modules, allowing cross-linking curing of different batches of photovoltaic modules within the same chamber. Two or more cross-linking curing chambers can also be set up to match the process time of the degassing unit, ensuring that the number of cross-linking curing stations is a multiple of the number of stations in the degassing and pre-curing chambers, thus maintaining a consistent process cycle across stages. The cross-linking curing chambers can be arranged sequentially or stacked vertically to form a layered structure. The worktable in the upper crosslinking curing chamber and the upper box of the lower crosslinking curing chamber are either an integrated structure or fixedly connected. Each worktable is surrounded by a conveyor belt for transporting photovoltaic modules. When the curing unit adopts a stacked structure, a lifting and conveying unit 400 is installed between the curing unit and the pre-curing unit to transport photovoltaic modules from the pre-curing unit to each layer of the curing chamber. This lifting and conveying unit is existing technology and will not be described further. A second lifting and conveying unit 600 is installed between the crosslinking curing unit and the cooling curing unit to transport each layer of cured photovoltaic modules from the curing unit into the cooling curing unit. The cooling curing unit can also be configured as a stacked structure. The preferred cooling and curing unit includes a cooling and curing chamber consisting of a cooling platform and an upper chamber, and a cooling plate for pressurizing and cooling the photovoltaic modules. The cooling plate is connected to a cooling plate driving device, which drives the cooling plate to move closer to or away from the cooling platform. A conveyor belt surrounds the cooling platform. When the photovoltaic modules are transferred to the cooling platform after heat curing, the upper chamber moves the cooling plate upward to make way for the photovoltaic modules. After the photovoltaic modules are in place, the upper chamber moves downward, and the cooling plate and cooling platform cool the photovoltaic modules from the top and bottom surfaces. The pressure of the cooling plate does not need to be too high; it only needs to be able to contact the photovoltaic modules. When the cooling unit has a stacked structure, a lifting and conveying second unit is set after the cooling unit to transfer the photovoltaic modules stacked on each layer of the cooling unit.

[0033] The preferred structure of the feeding unit is as follows: a movable hot box is installed above the feeding platform. After the hot box moves down, it forms a sealed hot air chamber with the feeding conveyor platform. The hot air chamber is connected to the degassing chamber via a hot air circulation device. The hot air circulation device collects the residual heat in the degassing chamber and transfers it to the heat-sealing chamber, then returns the cooled gas from the heat-sealing chamber to the degassing chamber. This allows the waste heat from the degassing chamber to be used to heat the photovoltaic modules on the feeding conveyor platform.

[0034] The following describes the use of the photovoltaic module lamination equipment for this structure, using lamination methods: the photovoltaic module undergoes staged lamination and curing, as detailed below:

[0035] a. Degassing Stage: First, the photovoltaic module is placed into the degassing chamber of the degassing unit 200. While evacuating, the photovoltaic module is heated until it reaches a temperature greater than or equal to the crosslinking temperature of the adhesive but lower than its curing temperature, causing the adhesive to melt. Once the vacuum level meets the process requirements, the photovoltaic module is pressurized until the process pressure is reached. The main purpose of this stage is to melt the adhesive, complete the initial crosslinking, and expel the air bubbles generated during the adhesive melting process, as well as the air bubbles remaining between layers; the required time is T1.

[0036] b. Pre-curing stage: The photovoltaic module is sent from the degassing chamber of the degassing unit 200 into the pre-curing chamber of the pre-curing unit 300. Under vacuum, the temperature is raised to the curing temperature so that the adhesive can achieve pre-bonding. Under vacuum, the degassed photovoltaic module is pressurized and heated to the curing temperature of the adhesive. After the temperature reaches the curing temperature of the adhesive, it is kept at the temperature and pressurized to the process pressure. The process time T2 is comparable to the vacuum degassing time T1, preferably the two are equal. During this stage, the adhesive completes pre-bonding and pre-curing, and the air bubbles generated by the adhesive bonding and curing reaction are eliminated.

[0037] c. Curing Stage: The photovoltaic module is transferred from the pre-curing chamber of pre-curing unit 300 to the cross-linking curing chamber of curing unit 500. Heating is performed in a vacuum or non-vacuum environment to allow the adhesive to complete cross-linking and curing. The curing time T3 is an integer multiple of the pre-curing stage time, i.e., T3 equals N times T2, or T3 = NT2. The heating temperature is higher than the adhesive curing temperature. During this process, no pressure is applied, only heating, until lamination curing is complete. Because the adhesive reaches above the curing temperature and has already undergone preliminary curing and cross-linking in the pre-curing stage, external air cannot enter, and the gas formed during cross-linking curing is expelled. Furthermore, the lack of pressure during this process significantly reduces the time the module is pressurized. The entire module will not become thinner due to continued pressure, which is beneficial for maintaining the thickness of the module edges and corners. This avoids the rebound phenomenon caused by excessive pressure on the corners after cooling, improving the module's weather resistance without affecting the bonding strength between the layers.

[0038] Using the above method, the lamination curing stage of the existing technology is divided into two pre-curing stages and a curing stage. The pre-curing stage completes the pre-bonding and pre-curing of the adhesive and removes the gas in the module by pressurization. The curing stage completes the bonding and curing of the adhesive. Moreover, the pre-curing and bonding curing stages are completed in the pre-curing chamber and the bonding curing chamber, respectively. Therefore, the process time of vacuum degassing and pre-curing can be matched by increasing the number of stations in the bonding curing stage, so that the time the module stays in the degassing chamber, the pre-curing chamber and the bonding curing chamber are coordinated, thereby speeding up the cycle time of the module entering and leaving the lamination production line.

[0039] To ensure that the number of stations in the crosslinking curing chamber matches the number of stations in the pre-crosslinking and degassing chambers, and that pre-cured laminated modules are promptly transferred out to receive new photovoltaic modules, the volume of the crosslinking curing chamber can be increased. The number of stations for laminated modules in a single crosslinking curing chamber is N times the number of stations for laminated modules in the degassing chamber. When the next batch of modules needs to enter the crosslinking curing chamber, the chamber is opened, and the modules are transferred, allowing the previous batch to move forward and freeing up stations for the next batch. When a new batch of modules enters, the chamber is closed again to continue curing. Alternatively, N crosslinking curing chambers can be set up, with each module curing in a different crosslinking curing chamber. Ideally, the modules should be placed in a stacking device for cross-linking curing during the curing stage. The number of cross-linking curing chambers in the stacking device depends on the number of laminating modules in each cross-linking curing chamber 501. When the number of laminating modules is the same, the number of cross-linking curing chambers is N times the number of degassing chambers. When the number of laminating modules is less than the number of degassing chambers, the number of cross-linking curing chambers must satisfy the condition that the product of the number of cross-linking curing chambers and the number of laminating stations in each cross-linking curing chamber equals N times the number of modules in the degassing chamber. This allows the modules to complete curing within the same cross-linking curing chamber without opening and closing the cover or moving the workpiece during the curing process. A lifting and conveying mechanism transports the photovoltaic modules to cross-linking curing chambers located at different layer heights. After lamination and curing are completed within the cross-linking curing chambers, they are then transported out. In this invention, the lamination curing process is divided into two stages: pre-curing and cross-linking curing. These two stages are completed in different cavities. Furthermore, a stacked lamination curing process is used in the longer curing stage. Pre-cross-linking of the photovoltaic module is completed in the pre-curing stage, and cross-linking curing of the module is completed in the curing stage. Since the pre-curing time is the same as or equivalent to the vacuum degassing time, and the vacuum degassing time is synchronized with the pre-curing time, the module can enter the pre-curing cavity immediately after the vacuum degassing time is up to complete the pre-cross-linking and pre-curing of the adhesive, without waiting. When the stacked curing method is used in the curing stage, Multiple intercalation curing chambers are stacked in the same location. When the number of layers in the intercalation curing chamber is greater than or equal to the number of modules required for lamination and curing in a batch, the modules complete intercalation and curing within their respective intercalation curing chambers. When a new module is transported out, it is connected to an empty intercalation curing chamber via a lifting mechanism for intercalation and curing. The modules that have completed intercalation and curing are then transported out via the lifting and conveying mechanism, and this cycle continues. Therefore, it does not prolong the process time and can increase the cycle time of the entire production line while only adding the planar space of one intercalation curing chamber, thereby improving the efficiency of the entire lamination production line. Using the above process, since lamination and curing are divided into at least two stages, the time occupied by the photovoltaic modules in the lamination and curing chamber during the lamination and curing stage is shortened, which can be shortened to match the vacuum degassing time, so that the cycle time of the entire production line can be kept consistent.

[0040] To further improve the efficiency of the entire lamination and curing production line, the components are preheated during the feeding stage before entering the degassing chamber. The preheating temperature is lower than the melting temperature of the adhesive film, and it is best to bring the adhesive film to a near-melting state.

[0041] Ideally, the preheating and temperature rise rates of the modules should be optimized and controlled during lamination and curing. During feeding, the module temperature rise rate should not be too fast; ideally, it should reach a near-melted but not completely melted state before entering the degassing chamber to prevent the adhesive from melting during feeding if it reaches the near-melted state too early. This further reduces the degassing stage processing time. In the degassing stage, the first half of the time should be spent heating to reach the process temperature, allowing the adhesive to initially bond. Then, lamination is performed at the process temperature to initially bond the module layers together. During this stage, the heating rate should not be too fast; reaching the preset process temperature prematurely will affect degassing. Lamination should be performed after degassing is complete to remove air bubbles more thoroughly. The heating rate in this stage should be controlled to less than 10 degrees Celsius per minute. In the pre-crosslinking and pre-curing stage, the heating rate should be fast, reaching the process temperature (above the adhesive's curing temperature) in the shortest possible time. The adhesive completes pressure pre-bonding at this process temperature. This prevents external gases from entering the module. During the curing stage, the modules need to be rapidly heated to reach the process temperature in the shortest possible time, allowing them to complete cross-linking and curing at this temperature. No pressure is applied during this stage. The preferred heating rate for both the pre-curing and curing stages is 10-20 degrees Celsius per minute. The pressure applied during the degassing and pre-curing stages is greater than 0 atmospheres and less than or equal to 1 atmosphere.

[0042] After lamination and curing, the components enter the cooling and lamination curing stage of the cooling unit 700 to cool and lower the temperature of the cross-linked cured components, thereby cooling the cross-linked cured adhesive, and then delivering it to the next process.

[0043] During cooling and curing, the component is cooled by a worktable equipped with a cooling medium and a pressure plate equipped with a cooling medium. The component is cooled by being simultaneously compressed by the cooling pressure plate and the cooling worktable; the purpose of pressurization is to accelerate cooling. Air cooling or a combination of air cooling and pressurized cooling can also be used to cool the component.

Claims

1. A photovoltaic module lamination and curing production line, comprising a degassing unit, a lamination and curing unit, and a conveying unit, wherein the degassing unit is used to heat and pressurize the photovoltaic module in a vacuum environment to remove bubbles generated during adhesive melting and gases remaining between the layers of the photovoltaic module, characterized in that: The lamination and curing unit includes a pre-curing unit and a curing unit, with a degassing unit, a pre-curing unit, and a curing unit arranged sequentially. The pre-curing unit provides a vacuum environment for the photovoltaic module and heats the photovoltaic module to achieve pre-bonding and pre-curing of the adhesive. It also removes residual gas from the photovoltaic module by pressurizing. The curing unit heats the photovoltaic module to complete the bonding of the adhesive. The photovoltaic module degassed by the degassing unit is transferred to the pre-curing unit via a transfer unit. The photovoltaic module that has completed pre-bonding and pre-curing in the pre-curing unit is transferred to the curing unit. The photovoltaic module that has completed bonding and curing in the curing unit is then transferred out.

2. The photovoltaic module lamination and curing production line as described in claim 1, characterized in that: The degassing unit and pre-curing unit each include a lamination device. The lamination device includes an upper box, a pressure-applying component, a pressure-applying component drive device, a worktable, and a photovoltaic module heating device. The upper box is located above the worktable and can be moved up and down by external force to adjust the distance between the upper box and the worktable. The pressure-applying component is located between the upper box and the worktable. The pressure-applying component drive device is fixed to the upper box, and its output end is fixedly connected to the upper surface of the pressure-applying component. The lower surface of the pressure-applying component is opposite to the worktable. The upper box can move up and down under external force. When the upper box descends to the position of the worktable, the pressure-applying component moves up and down. After the worktable is closed, a sealed cavity is formed between the upper box and the worktable through a sealing assembly. A communication structure for connecting with the vacuum device and the gas filling device is provided on the sealed cavity. The sealed cavity is called the degassing cavity when used in the degassing unit and the pre-curing cavity when used in the pre-curing unit. The curing unit includes the upper box and the worktable. The upper box can move up and down under the drive of external force. When it meets the worktable, it forms a closed cavity that constitutes the curing cavity. Heating devices for heating the photovoltaic module are respectively provided in the degassing cavity, the pre-curing cavity, and the curing cavity. The curing cavity is a sealed cavity.

3. The photovoltaic module lamination and curing production line as described in claim 2, characterized in that: The curing unit includes two or more curing cavities, which are arranged vertically to form a stacked structure. A lifting and conveying device is provided between the pre-curing unit and the curing unit to transfer the photovoltaic modules from the pre-curing unit to the curing cavities located at different heights.

4. The photovoltaic module lamination and curing production line as described in claim 3, characterized in that: The upper chamber of the lower curing chamber is fixedly connected to the worktable of the upper curing chamber or is set as an integral unit.

5. The photovoltaic module lamination and curing production line as described in claim 1, characterized in that: A feeding unit is provided before the degassing unit. The feeding unit is equipped with a heating device that can heat the photovoltaic module and transfer the heated photovoltaic module to the degassing unit.

6. The photovoltaic module lamination and curing production line as described in claim 5, characterized in that: The feeding unit includes a hot air chamber consisting of a feeding conveyor and an upper box. The hot air chamber is sealed and connected to the degassing chamber through a hot air circulation device. The hot air circulation device can collect the residual heat in the degassing chamber and transport it to the heat-sealed chamber, and then return the cooled gas from the heat-sealed chamber to the degassing chamber.

7. A photovoltaic module lamination and curing production line as described in claim 3, characterized in that: A cooling unit is provided after the curing unit, and a lifting and conveying device is provided between the two. The conveying component of the lifting and conveying device can rise or fall to receive photovoltaic modules located in curing chambers at different heights and convey them to the cooling unit.

8. The photovoltaic module lamination and curing production line as described in claim 7, characterized in that: A lifting and conveying device is provided after the cooling unit, which can transport the photovoltaic modules that have been cooled and solidified by the stacked cooling unit.

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