A double-sided rectangular photovoltaic module production lamination apparatus

Abstract

The present application relates to photovoltaic module manufacturing technology field, specifically, it relates to a kind of double-sided rectangular photovoltaic module production laminating equipment.It includes first laminating table and laminating frame being arranged at the top of the first laminating table, the bottom of the laminating frame is provided with laminating cavity, inside has the gas delivery mechanism for pressurizing and decompressing laminating cavity;The top of the laminating cavity is provided with laminating plate, the inside of the first laminating table is provided with the vacuum pumping mechanism for the space below laminating plate is pumped down;In the double-sided rectangular photovoltaic module production laminating equipment, by setting the second laminating table moving up and down, on the one hand, the upward movement of second laminating table can form supplementary area, utilize the additional space of supplementary area to improve the spacing between adjacent photovoltaic modules, to solve the subsequent problem caused by spacing too close.Another aspect, second laminating table can be integrated with first laminating table after moving down, to quickly realize the laminating of single photovoltaic module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic module manufacturing, in particular to a double-sided rectangular photovoltaic module production laminating device. BACKGROUND

[0002] A double-sided photovoltaic module is a kind of solar cell module, which can not only absorb solar light from the front side, but also absorb scattered light and reflected light from the back side under good light conditions. Compared with the traditional single-sided photovoltaic module, the double-sided photovoltaic module can utilize more solar light, thereby improving the power generation efficiency.

[0003] The manufacturing process of the double-sided photovoltaic module includes an encapsulation process, which specifically encapsulates the laminated tempered glass, EVA, battery array, EVA, and tempered glass together. The vacuum hot pressing method is the main method currently used for encapsulating photovoltaic modules. The vacuum hot pressing method encapsulates photovoltaic modules, which is usually completed by a laminator. The laminator is a key device in photovoltaic module production, which is used to tightly press the layers of materials of the photovoltaic module together under heating and vacuum conditions. The laminator is composed of five systems: a heating system, a vacuum system, a pneumatic system, a control system, and a transmission system. The coordinated work of these systems ensures the smooth progress of the laminating process.

[0004] The laminator can individually laminate a large volume photovoltaic module or simultaneously laminate multiple small volume photovoltaic modules. However, the current laminating device has the following problems when laminating multiple small volume photovoltaic modules simultaneously:

[0005] In order to increase the number of photovoltaic modules laminated at a time, more photovoltaic modules are usually arranged in the laminating cavity, which results in a small distance between adjacent photovoltaic modules. The small distance causes the air bubbles in the photovoltaic module to be trapped in the edge or gap due to the obstruction of adjacent plates, resulting in residual air bubbles in the photovoltaic module after lamination, or the overflowed glue of the photovoltaic module may form adhesion between adjacent plates, increasing the difficulty of disassembling the plates. SUMMARY

[0006] The present application aims to provide a double-sided rectangular photovoltaic module production laminating device, which forms an additional area on the first laminating table by the second laminating table moving up and down, thereby solving the problem raised in the background art that arranging more photovoltaic modules in the laminating cavity results in a small distance between adjacent photovoltaic modules.

[0007] In order to achieve the above object, the double-sided rectangular photovoltaic module production laminating equipment comprises a first laminating table and a laminating frame arranged on the top of the first laminating table, the bottom of the laminating frame is provided with a laminating cavity, and the inside of the laminating cavity is provided with a gas conveying mechanism for pressurizing and depressurizing the laminating cavity; the top of the laminating cavity is provided with a laminating plate, and the inside of the first laminating table is provided with a vacuumizing mechanism for vacuumizing the space below the laminating plate;

[0008] The second laminating table is arranged on the top of the first laminating table, and a driving member is arranged for driving the second laminating table to reciprocate longitudinally, the second laminating table and the first laminating table are both used for carrying photovoltaic modules, and the inside of the first laminating table and the second laminating table is both provided with a heating member;

[0009] When the second laminating table is away from the top of the first laminating table, the space below the second laminating table forms a supplemental area for increasing the space for placing the photovoltaic modules;

[0010] The number of the laminating plates corresponds to the number of the first laminating table and the second laminating table, and the laminating plates are used for applying pressure to the photovoltaic modules on the first laminating table and the second laminating table.

[0011] In the above technical solution, after the second laminating table moves upward, the elastic deformation of the laminating plate can enter the space below one end of the second laminating table, the space is utilized to change into a supplemental area, and the supplemental area is used to increase the space for placing the photovoltaic modules.

[0012] The following are two setting schemes of the second laminating table.

[0013] In the first scheme, the second laminating table is arranged on one side of the first laminating table, the filling member is arranged close to the middle of the first laminating table, the laminating plate has two, one of which is arranged corresponding to the second laminating table, and the other of which is arranged corresponding to the first laminating table, and the length of the second laminating table is greater than one half of the length of the laminating cavity.

[0014] In the second scheme, the second laminating table is arranged on both sides of the first laminating table, the laminating plate has three, the laminating plates arranged on both sides correspond to the second laminating table, and the laminating plate arranged in the middle corresponds to the first laminating table, and the length of the second laminating table is greater than one third of the length of the laminating cavity.

[0015] On this basis, a recessed receiving groove is arranged on the top of the first laminating table corresponding to the position of the second laminating table, the volume of the receiving groove corresponds to the volume of the second laminating table, so that when the second laminating table moves into the receiving groove, the second laminating table and the first laminating table form an integral whole, and a detachable filling member is arranged in the receiving groove, and the filling member is arranged at one end of the receiving groove when the second laminating table is away from the first laminating table.

[0016] The receiving groove can accommodate the second laminating table, so that the second laminating table can form an integral body with the first laminating table when the second laminating table does not need to move upward, and the laminating of the large-volume photovoltaic module can be realized.

[0017] On this basis, the filling piece is a plate-shaped structure with a height corresponding to the depth of the receiving groove, and is used for leveling the height of the supplement area with the height of the first laminating table, so as to realize the purpose of placing the photovoltaic module on the supplement area.

[0018] In another technical solution, the bottom of the end of the second laminating table towards the first laminating table is upwardly narrowed to form a bevel;

[0019] The second laminating table has a glue blocking state, in which the top of the second laminating table is flush with the top of the photovoltaic module corresponding to the first laminating table, so that the second laminating table is located below the bevel to form a glue overflow cavity, and the glue overflow cavity is isolated from the laminating plate through the second laminating table.

[0020] In this technical solution, the laminating plate cannot contact the side edge of the photovoltaic module during the laminating process, and this structural design avoids the adhesion of too much glue on the surface of the laminating plate.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. In the double-sided rectangular photovoltaic module production laminating equipment, the second laminating table moves up and down, on the one hand, the upward movement of the second laminating table can form a supplement area, and the additional space of the supplement area is used to increase the spacing between adjacent photovoltaic modules, thereby solving the subsequent problems caused by too close spacing. On the other hand, the second laminating table can be integrated with the first laminating table after moving downward, so that the laminating of a single photovoltaic module can be quickly realized.

[0023] 2. In the double-sided rectangular photovoltaic module production laminating equipment, the bevel at the end of the second laminating table not only plays a role in avoiding the deformation of the laminating plate, but also cooperates with the upward and downward movement of the second laminating table to realize the isolation of the laminating plate and the glue overflow part, thereby reducing the amount of glue adhered to the surface of the laminating plate and improving the efficiency of cleaning the laminating plate. DETAILED DESCRIPTION

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0025] Figure 2 It is a schematic diagram of the structure of the first laminating table of the present application;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the laminating frame of the present application;

[0027] Figure 4 It is a schematic diagram of one structure of the second laminating table of the present application;

[0028] Figure 5 Structure diagram of the filling piece of the present application;

[0029] Figure 6 Structure diagram of the filling piece of the present application; Figure 5 Enlarged structure diagram of A of the filling piece of the present application;

[0030] Figure 7 Structure diagram of the laminated board of the present application;

[0031] Figure 8 Working state diagram of the second laminating table of the present application Figure 1 ;

[0032] Figure 9 Working state diagram of the second laminating table of the present application Figure 2 ;

[0033] Figure 10 Working state diagram of the second laminating table of the present application Figure 3 ;

[0034] Figure 11 Another structure diagram of the second laminating table of the present application.

[0035] The meanings of the respective numbers in the figures are as follows:

[0036] 100, first laminating table; 101, air extraction cavity; 102, air extraction channel; 103, second heating rod; 104, storage groove; 110, second laminating table; 111, first heating rod; 112, bevel; 113, sliding column; 114, hydraulic rod; 115, glue overflow cavity; 120, filling piece; 121, stop plate; 122, limiting block; 200, laminating frame; 201, recess; 202, air conveying cavity; 203, laminated board; 210, guide plate; 220, lifting mechanism; 300, photovoltaic assembly. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0038] In view of the problem that arranging more photovoltaic assemblies 300 in the laminating cavity leads to small spacing between two adjacent photovoltaic assemblies 300, the present application provides a double-sided rectangular photovoltaic assembly production laminating device. Figure 1As shown, the laminating device comprises a first laminating table 100 and a laminating frame 200 arranged on top of the first laminating table 100, the side wall of the laminating frame 200 is connected with a lifting mechanism 220 for driving the laminating frame 200 to move up and down, so that the bottom end of the laminating frame 200 can contact or separate from the top of the first laminating table 100. The bottom end of the lifting mechanism 220 is arranged on the ground, and the lifting mechanism 220 can drive the laminating frame 200 by using a hydraulic cylinder, a lead screw or other mechanisms.

[0039] As shown in the drawings, Figure 3 The bottom of the laminating frame 200 is provided with an upward groove 201, when the laminating frame 200 is lowered to the top of the first laminating table 100 by the lifting mechanism 220, the contact between the bottom end of the laminating frame 200 and the top of the first laminating table 100 forms a closed laminating cavity in the groove 201. In addition, the laminating frame 200 is also connected with a gas conveying mechanism. Specifically, the gas conveying mechanism comprises a gas conveying cavity 202 arranged inside the laminating frame 200 (specifically above the groove 201), the top end of the gas conveying cavity 202 penetrates through the top of the laminating frame 200, and is connected with a pressure increasing device and a pressure reducing device (not shown in the drawings) which can be installed on the top of the laminating frame 200, the pressure increasing device can send gas into the gas conveying cavity 202, and the pressure reducing device can exhaust the gas in the gas conveying cavity 202, so that the gas conveying cavity 202 can generate positive pressure or negative pressure.

[0040] The positive pressure or negative pressure can drive the laminating plate 203 to deform or recover. In the specific driving process, first, the bottom of the gas conveying cavity 202 is communicated with the top of the groove 201, then the laminating plate 203 is fixed on the top of the groove 201, the laminating plate 203 is preferably made of silica gel, at this time, the laminating plate 203 is below the communication part between the gas conveying cavity 202 and the groove 201. In this way, when the gas conveying cavity 202 is under positive pressure, the laminating plate 203 begins to deform downward, and when the pressure inside the gas conveying cavity 202 is consistent with the external pressure or under negative pressure, the deformed laminating plate 203 recovers.

[0041] As shown in the drawings, Figure 2 The inside of the first laminating table 100 is provided with a plurality of gas extraction channels 102 and a second heating rod 103 along the length direction of the first laminating table 100; the top end of the plurality of gas extraction channels 102 penetrates through the top of the first laminating table 100, and the bottom end is communicated with a gas extraction cavity 101 arranged inside the first laminating table 100, a part of the bottom of the gas extraction cavity 101 penetrates through the bottom of the first laminating table 100, and is connected with a vacuum pump (not shown in the drawings), which is used for vacuumizing the laminating cavity (the space below the laminating plate 203) through the gas extraction cavity 101 and the gas extraction channels 102. The second heating rod 103 is used for heating the first laminating table 100, and the first laminating table 100 plays a role of heat conduction to transfer heat to the photovoltaic module 300 placed on the top of the first laminating table 100.

[0042] And the laminating device further comprises a second laminating table 110 located on the top of the first laminating table 100 and a driving member for driving the second laminating table 110 to move longitudinally reciprocatingly (i.e. the moving direction is perpendicular to the top of the first laminating table 100), the second laminating table 110 and the first laminating table 100 are both used for bearing the photovoltaic module 300, and when the second laminating table 110 moves away from the top of the first laminating table 100, a supplemental area is formed below the second laminating table 110 partially, and part of the photovoltaic module 300 on the top of the first laminating table 100 can be placed in the supplemental area, so as to increase the placing space on the top of the first laminating table 100. And the number of the laminating plates 203 corresponds to the number of the first laminating table 100 and the second laminating table 110, so that the laminating plates 203 corresponding to the second laminating table 110 can exert pressure on the photovoltaic module 300 corresponding to the second laminating table 110 after deformation, and the laminating plates 203 corresponding to the second laminating table 110 can exert pressure on the photovoltaic module 300 corresponding to the first laminating table 100 and the supplemental area after deformation.

[0043] Specifically, the driving member comprises a plurality of vertical slide columns 113 fixedly arranged on the bottom of the second laminating table 110, the bottom ends of the slide columns 113 penetrate the first laminating table 100 in a longitudinal sliding manner, and the plurality of slide columns 113 serve as guides to improve the stability of the up-down movement of the second laminating table 110. The bottom ends of the slide columns 113 are connected with hydraulic rods 114, and the hydraulic rods 114 are installed on the bottom of the first laminating table 100 and used for driving the second laminating table 110 to move up and down.

[0044] And the photovoltaic module 300 corresponding to the second laminating table 110 also needs to be heated. Figure 2 In the embodiment shown in the figure, the first heating rods 111 are arranged in the second laminating table 110, and the heat of the first heating rods 111 can be transmitted to the photovoltaic module 300 through the second laminating table 110. It should be noted that the heating method for the second laminating table 110 is not limited to the first heating rods 111, for example, a flow guide cavity can also be arranged in the second laminating table 110, and the heating of the second laminating table 110 can also be realized by feeding circulating heat-conducting oil into the flow guide cavity.

[0045] If the height of the second laminating table 110 is higher than the height of the first laminating table 100, the overall height is inconsistent, so that a single photovoltaic module 300 (referring to a photovoltaic module 300 with a larger volume) cannot be placed. Therefore, the second laminating table 110 needs to be sunk when it does not need to move up, so that the top of the first laminating table 100 and the top of the second laminating table 110 are flush. Specifically, as shown in the figure, Figure 2 and Figure 4As shown, the first laminating table 100 is provided with a downward recessed receiving groove 104 at the top corresponding to the position of the second laminating table 110, the depth of the receiving groove 104 corresponds to the height of the second laminating table 110, when the second laminating table 110 is moved into the receiving groove 104, the outer edge of the second laminating table 110 is fitted with the inner wall of the receiving groove 104, and the top of the second laminating table 110 is flush with the top of the first laminating table 100, at this time the overall height is consistent (for effect Figure 9 ); But this will face the supplement area in the receiving groove 104, causing the height of the supplement area to be inconsistent with the height of the first laminating table 100. Therefore, the present application also sets a detachable filling piece 120 in the receiving groove 104, which can be fixedly installed at one end of the receiving groove 104 when the second laminating table 110 moves away from the first laminating table 100, so that the height of the supplement area is flush with the height of the first laminating table 100.

[0046] In Figure 5 In the embodiment shown, the filling piece 120 is a plate-shaped structure with a height corresponding to the depth of the receiving groove 104. In this way, when the filling piece 120 is installed in the receiving groove 104, the top of the filling piece 120 is flush with the top of the first laminating table 100, and at this time the supplement area can also be flush with the first laminating table 100. At the same time, when the second laminating table 110 needs to enter the receiving groove 104, the filling piece 120 can be removed from the receiving groove 104.

[0047] Furthermore, the present application further optimizes the above-mentioned filling piece 120 as follows to improve the stability during the laminating process. First, a stop plate 121 is fixedly arranged at one end of the filling piece 120 facing the second laminating table 110, the stop plate 121 is perpendicular to the filling piece 120, and the top end of the stop plate 121 extends to the bottom of the second laminating table 110 (for reference Figure 2 ). In this way, the stop plate 121 can limit the laminating plate 203, avoiding excessive deformation of the laminating plate 203. At the same time, the side wall of the stop plate 121 is provided with a ventilation hole to realize the communication between the two sides of the stop plate 121. Second, a limiting block 122 is arranged at the top of the filling piece 120 (for reference Figure 6 ), the limiting block 122 protrudes from the top of the filling piece 120 and is arranged close to the stop plate 121. In this way, the limiting block 122 can block the photovoltaic module 300, preventing the displacement of the photovoltaic module 300 located on the filling piece 120. Moreover, the height of the limiting block 122 is not higher than the height of the photovoltaic module 300, avoiding affecting the pressing effect of the laminating plate 203 on the photovoltaic module 300.

[0048] In addition, when the two adjacent laminated plates 203 are close to each other, in order to ensure that the laminated plates 203 can be in the corresponding position during the deformation, the present application further provides a detachable guide plate 210 on the top of the groove 201, the guide plate 210 is between the two adjacent laminated plates 203, and the bottom end of the guide plate 210 extends to one end of the second laminating table 110 (see Figure 3 and Figure 8 ). In addition, the overall shape of the guide plate 210 is preferably arc-shaped to adapt to the deformation of the laminated plate 203.

[0049] In addition, the second laminating table 110 narrows upwards to form a bevel 112 at the bottom of the end of the laminated plate 203 corresponding to the first laminating table 100, which can provide a space for the formation of the laminated plate 203.

[0050] Next, the different states of the second laminating table 110 are illustrated by the following embodiments.

[0051] Embodiment 1, refer to Figure 2 , the second laminating table 110 is located on one side of the first laminating table 100, which can be the left side or the right side. This embodiment is described in detail on the right side. The filler 120 is arranged near the middle of the first laminating table 100. At the same time, as shown in Figure 8 , in this embodiment, the laminated plate 203 has two, one of which is above the second laminating table 110 (i.e. corresponding to the second laminating table 110), and the other is above the first laminating table 100 (i.e. corresponding to the first laminating table 100). In addition, the number of gas conveying mechanisms also corresponds to the number of laminated plates 203, that is, the gas conveying mechanisms are also two groups, and the specific structure is described in detail in the following Figure 8 . In addition, the length of the second laminating table 110 is greater than one half of the length of the laminating cavity.

[0052] The working principle of Embodiment 1 is described in detail as follows.

[0053] When it is necessary to laminate multiple photovoltaic modules 300 at the same time, first, the second laminating table 110 is driven to rise to a predetermined height, then half of the photovoltaic modules 300 are placed on the top of the second laminating table 110, and then the other half of the photovoltaic modules 300 are placed on the top of the first laminating table 100. At this time, it should be noted that, since the length of the second laminating table 110 is greater than one half of the length of the laminating cavity, the distance between the two adjacent photovoltaic modules 300 corresponding to the second laminating table 110 can be increased. In addition, due to the presence of the filler 120, the photovoltaic modules 300 on the top of the first laminating table 100 can also be moved to the top of the filler 120, at this time, the distance between the two adjacent photovoltaic modules 300 corresponding to the first laminating table 100 can also be increased.

[0054] When laminating, the first laminating table 100 and the second laminating table 110 are heated, and then the space below the laminating plate 203 is vacuumized to extract the bubbles inside the photovoltaic module 300. Then, high-pressure gas is sent into the gas conveying cavity 202, at this time, the top of the laminating plate 203 is greater than the bottom, so the laminating plate 203 begins to deform downward. Then, referring to Figure 8 , the laminating plate 203 on the top of the second laminating table 110 will be attached to the side wall of the guide plate 210, the top of the photovoltaic module 300, and the side wall of the laminating cavity, realizing the laminating of the photovoltaic module 300 on the top of the second laminating table 110. The laminating plate 203 on the top of the first laminating table 100 will first deform downward, but during the deformation process, the space below the second laminating table 110 is also in a vacuum state, so it will also be sucked by the laminating plate 203 through the air holes in the side wall of the stop plate 121, at this time, the laminating plate 203 will be attached to the side wall of the guide plate 210, the side wall of the groove 201, the top of the photovoltaic module 300, and the side wall of the laminating cavity. The state of the two laminating plates 203 can be referred to Figure 8 .

[0055] When a single photovoltaic module 300 needs to be laminated separately. As shown in Figure 9 , first, the guide plate 210, the filler 120, and the two laminating plates 203 are removed, and then a whole laminating plate 203 is replaced, and then the second laminating table 110 is driven to move into the storage groove 104, at this time, the top of the second laminating table 110 is flush with the top of the second laminating table 110, and the two together form a whole, at this time, the photovoltaic module 300 is placed on the top of the first laminating table 100, and then laminated.

[0056] That is, by setting the second laminating table 110 moving up and down, on the one hand, the upward movement of the second laminating table 110 can form a supplement area, and the additional space of the supplement area can be used to increase the distance between adjacent photovoltaic modules 300, thereby solving the subsequent problem caused by too close distance. On the other hand, the second laminating table 110 can be integrated with the first laminating table 100 after moving down, thereby quickly realizing the laminating of a single photovoltaic module 300.

[0057] Furthermore, considering that the edge of the photovoltaic module 300 often appears glue overflow phenomenon during the laminating process, thereby causing the glue to be adhered to the surface of the laminating plate 203. Therefore, as shown in Figure 10 , the second laminating table 110 also has a glue blocking state, in which the top of the second laminating table 110 is flush with the top of the corresponding photovoltaic module 300 of the first laminating table 100, so that the second laminating table 110 is located below the bevel 112 to form a glue overflow cavity 115, which is isolated from the laminating plate 203 by the second laminating table 110.

[0058] In this way, the photovoltaic module 300 is placed on one side of the bevel 112, and the height of the photovoltaic module 300 is consistent with the height of the first laminating table 100, and the operation does not affect the lamination of the photovoltaic module 300, and during the lamination process, the glue overflowed by the photovoltaic module 300 close to one side of the bevel 112 is below the bevel 112, so as not to contact the laminating plate 203. It is worth noting that this scheme is also applicable to embodiment 2.

[0059] Therefore, the bevel 112 at the end of the second laminating table 110 not only plays a role in avoiding the deformation of the laminating plate 203, but also cooperates with the up-down movement of the second laminating table 110 to realize the isolation of the laminating plate 203 and the glue overflow position, reduces the amount of glue adhered to the surface of the laminating plate 203, and improves the efficiency of cleaning the laminating plate 203.

[0060] Embodiment 2, reference Figure 11 In this embodiment, the second laminating table 110 is located on both sides of the first laminating table 100; the laminating plate 203 has three, and the laminating plate 203 located on both sides is located above the corresponding second laminating table 110, and the laminating plate 203 located in the middle is located above the first laminating table 100. Similarly, the number of gas conveying mechanisms corresponds to the number of laminating plates 203, that is, the gas conveying mechanism is also three groups, and the specific structure is referred to Figure 11 , and the length of the second laminating table 110 is greater than one-third of the length of the laminating cavity.

[0061] The working principle of this embodiment is as follows:

[0062] First, one-third of the photovoltaic module 300 is placed on the top of the left second laminating table 110, and one-third of the photovoltaic module 300 is placed on the top of the right second laminating table 110, and the last one-third of the photovoltaic module 300 is placed on the top of the right first laminating table 100. Because the length of the second laminating table 110 is greater than one-third of the length of the laminating cavity, the distance between the adjacent two photovoltaic modules 300 can be increased. At the same time, the photovoltaic module 300 on the top of the first laminating table 100 can also move to the top of the filler 120 on both sides, and at this time, the distance between the adjacent two photovoltaic modules 300 corresponding to the first laminating table 100 can also be increased.

[0063] Then, the photovoltaic module 300 is laminated, and the principle of this part is basically the same as that of embodiment 1, so it is not repeated here. The state of the three laminating plates 203 is referred to Figure 11 .

[0064] It should be understood that the supplemental area mentioned in the present application refers to the position where the filler 120 is located. Therefore, the width of the filler 120 and the length of the second laminating table 110 should be adjusted adaptively according to the elasticity of the laminated board 203, and thus are not limited herein. For example, when the laminated board 203 is made of a material with stronger elasticity, the width of the filler 120 and the length of the second laminating table 110 can be increased adaptively.

[0065] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A production laminating device for double-sided rectangular photovoltaic modules, comprising a first laminating table (100) and a laminating frame (200) arranged on top of the first laminating table (100), the bottom of the laminating frame (200) is provided with a laminating cavity, and the inside of the laminating cavity is provided with a gas conveying mechanism for pressurizing and depressurizing the laminating cavity; the top of the laminating cavity is provided with a laminating plate (203), and the inside of the first laminating table (100) is provided with a vacuumizing mechanism for vacuumizing the space below the laminating plate (203), characterized in that: a second laminating table (110) is arranged on top of the first laminating table (100), and a driving member is arranged for driving the second laminating table (110) to reciprocate longitudinally, the second laminating table (110) and the first laminating table (100) are both used for carrying photovoltaic modules (300), and the inside of the first laminating table (100) and the second laminating table (110) are both provided with a heating member; when the second laminating table (110) is away from the top of the first laminating table (100), a supplemental area for increasing the space for placing the photovoltaic modules (300) is formed below the second laminating table (110) in part; the number of the laminating plates (203) corresponds to the number of the first laminating table (100) and the second laminating table (110), and the laminating plates (203) are used for applying pressure to the photovoltaic modules (300) on the first laminating table (100) and the second laminating table (110). the driving member comprises a hydraulic rod (114) arranged at the bottom of the first laminating table (100), and the telescopic end of the hydraulic rod (114) penetrates through the first laminating table (100) and is connected with the second laminating table (110).

2. The double-sided rectangular photovoltaic module production lamination apparatus of claim 1, wherein: a downwardly recessed receiving groove (104) is arranged on the top of the first laminating table (100) corresponding to the position of the second laminating table (110), the volume of the receiving groove (104) corresponds to the volume of the second laminating table (110), so that when the second laminating table (110) moves into the receiving groove (104), the second laminating table (110) and the first laminating table (100) form an integral whole; 3. The double-sided rectangular photovoltaic module production lamination apparatus of claim 1, wherein: a detachable filling member (120) is arranged in the receiving groove (104), and the filling member (120) is used for being fixedly arranged at one end of the receiving groove (104) when the second laminating table (110) is away from the first laminating table (100). the filling member (120) is a plate-shaped structure with a height corresponding to the depth of the receiving groove (104), and is used for making the height of the supplemental area flush with the height of the first laminating table (100).

4. The double-sided rectangular photovoltaic module production lamination apparatus of claim 3, wherein: a stop plate (121) for avoiding excessive deformation of the laminating plate (203) is fixedly arranged at the end of the filling member (120) facing the second laminating table (110), and the stop plate (121) is a breathable structure; 5. The double-sided rectangular photovoltaic module production lamination apparatus of claim 4, wherein: a limiting block (122) for blocking the photovoltaic modules (300) is arranged on the top of the filling member (120). a detachable guide plate (210) is fixedly arranged on the top of the laminating cavity, the guide plate (210) is arranged between two adjacent laminating plates (203), and is used for guiding the laminating plate (203) to deform to a corresponding position.

6. The double-sided rectangular photovoltaic module production lamination apparatus of claim 1, wherein: ​ 7. The double-sided rectangular photovoltaic module production lamination apparatus of claim 3, wherein: The second laminating table (110) is located on one side of the first laminating table (100); the filler (120) is arranged near the middle of the first laminating table (100); The laminating plate (203) has two, one of which is arranged corresponding to the second laminating table (110), and the other is arranged corresponding to the first laminating table (100); The length of the second laminating table (110) is greater than one half of the length of the laminating cavity.

8. The double-sided rectangular photovoltaic module production lamination apparatus of claim 1, wherein: The second laminating table (110) is located on both sides of the first laminating table (100); the laminating plate (203) has three, the laminating plates (203) located on both sides are arranged corresponding to the second laminating table (110), and the laminating plate (203) located in the middle is arranged corresponding to the first laminating table (100); The length of the second laminating table (110) is greater than one third of the length of the laminating cavity.

9. The double-sided rectangular photovoltaic module production lamination apparatus according to claim 7 or 8, characterized in that: The number of the gas conveying mechanisms corresponds to the number of the laminating plates (203).

10. The double-sided rectangular photovoltaic module production lamination apparatus according to claim 7 or 8, characterized in that: The second laminating table (110) is tapered upward at the bottom of one end thereof toward the first laminating table (100) to form a bevel (112); The second laminating table (110) has a glue blocking state, in which the top of the second laminating table (110) is flush with the top of the photovoltaic module (300) corresponding to the first laminating table (100), so that the second laminating table (110) is located below the bevel (112) to form a glue overflow cavity (115), and the glue overflow cavity (115) is isolated from the laminating plate (203) by the second laminating table (110).

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