Laminating equipment

Abstract

The invention provides laminating equipment, and relates to the technical field of photovoltaic module processing, the laminating equipment comprises a laminating mechanism and a cooling mechanism, the cooling mechanism is located at one side of the laminating mechanism, the cooling mechanism comprises a cooling part and an adsorption part, the adsorption part is arranged at the cooling part, and the adsorption part is located at the other side of the laminating mechanism. The adsorption part is used for adsorbing a laminated piece processed by the laminating mechanism to the first surface of the cooling part, the cooling part comprises cooling runners used for containing a heat exchange medium, and the multiple cooling runners and the multiple adsorption parts are alternately arranged in the first direction. The cooling mechanism of the laminating equipment integrates a cooling function and an adsorption function, so that a laminated piece is stably adsorbed on the first surface of the cooling part, the contact area of the laminated piece and the cooling part is increased, and the cooling speed and the cooling effect of the laminated piece are improved; and the laminated part is uniformly cooled and adsorbed.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module processing, and particularly to a lamination device. Background Art

[0002] A photovoltaic module is a device for converting light energy into electrical energy. In the process of manufacturing a photovoltaic module, the laminated part obtained after lamination treatment needs to be placed on a cooling mechanism for cooling. At present, the cooling rate of the laminated part is slow and the cooling effect is poor, which affects the performance of the photovoltaic module. Summary of the Invention

[0003] In view of this, the present application provides a lamination device to facilitate solving the problems of slow cooling rate and poor cooling effect of the laminated part in the prior art.

[0004] An embodiment of the present application provides a lamination device, including a lamination mechanism and a cooling mechanism. The cooling mechanism is located on one side of the lamination mechanism. The cooling mechanism includes a cooling part and an adsorption part. The adsorption part is arranged on the cooling part. The adsorption part is used to adsorb the laminated part processed by the lamination mechanism on the first surface of the cooling part. Wherein, the cooling part includes a cooling flow channel for accommodating a heat exchange medium, and a plurality of the cooling flow channels and a plurality of the adsorption parts are arranged alternately along a first direction.

[0005] The beneficial effects of the present application are as follows: The cooling mechanism of the lamination device integrates a cooling function and an adsorption function, so that the laminated part to be cooled can be stably adsorbed on the first surface of the cooling part, increasing the degree of fit between the laminated part and the cooling part, increasing the contact area between the laminated part and the cooling part, improving the cooling rate and cooling effect of the laminated part. The cooling rate is increased, the crystallinity of the adhesive film in the laminated part is reduced, thereby improving the light transmittance of the adhesive film, improving the light absorption efficiency of the photovoltaic module, and further improving the power of the photovoltaic module. Among them, the cooling flow channels and the adsorption parts are arranged alternately, so that the laminated part is subjected to uniform cooling and adsorption effects.

[0006] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. Brief Description of the Drawings

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0008] Figure 1Schematic diagram of the laminating mechanism, cooling mechanism, and conveying mechanism in the laminating device provided by an embodiment of the present application;

[0009] Figure 2 Schematic diagram of the cooling mechanism in an embodiment of the present application;

[0010] Figure 3 Schematic diagram of the cooling part and the conveyor belt in an embodiment of the present application;

[0011] Figure 4 Partial schematic diagram of the cooling part in an embodiment of the present application;

[0012] Figure 5 Schematic diagram of the working area of the cooling part in an embodiment of the present application;

[0013] Figure 6 Partial schematic diagram of the laminating device in an embodiment of the present application;

[0014] Figure 7 Partial schematic diagram of the laminating device in another embodiment of the present application;

[0015] Figure 8 Schematic diagram of the pressing plate in an embodiment of the present application;

[0016] Figure 9 Schematic diagram of the cooling mechanism, pressing mechanism, and laminating part in an embodiment of the present application.

[0017] Reference numerals:

[0018] 100 - laminating device; 1 - laminating mechanism; 2 - cooling mechanism; 21 - cooling part; 21a - first surface; 21b - working area; 211 - cooling flow channel; 22 - adsorption part; 221 - adsorption unit; 2211 - vacuum adsorption hole; 23 - support part; 3 - pressing mechanism; 31 - pressing plate; 311 - pressing part; 312 - connecting part; 3121 - connecting section; 3122 - extending section; 4 - driving mechanism; 41 - first driving part; 42 - third driving part; 43 - first guiding part; 44 - second guiding part; 5 - conveying mechanism; 51 - conveyor belt; 511 - ventilation hole; 200 - laminating part. Detailed implementation manners

[0019] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0020] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0021] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A / and B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0023] A photovoltaic module is a device for converting light energy into electrical energy. The photovoltaic module includes a multi-layer structure formed by a cover plate, solar cells, and a glue film. During the preparation of the photovoltaic module, after the above multi-layer structure is laminated to form a laminate, the laminate needs to be placed on a cooling mechanism for cooling, and then subsequent processing is carried out. Currently, the laminate has problems such as slow cooling rate and poor cooling effect, which affect the performance of the photovoltaic module.

[0024] As Figure 1 and Figure 2 shown, an embodiment of the present application provides a lamination device 100, which includes a lamination mechanism 1 and a cooling mechanism 2. The cooling mechanism 2 is located on one side of the lamination mechanism 1. The cooling mechanism 2 includes a cooling part 21 and an adsorption part 22. The adsorption part 22 is arranged on the cooling part 21. The adsorption part 22 is used to adsorb the laminate (not shown in the figure) processed by the lamination mechanism 1 on the first surface 21a of the cooling part 21. Among them, the cooling part 21 includes a cooling channel 211 for accommodating a heat exchange medium, and a plurality of cooling channels 211 and a plurality of adsorption parts 22 are arranged alternately along the first direction X.

[0025] The lamination mechanism 1 laminates the multi-layer structure (not shown in the figure) formed by the cover plate, solar cells, and glue film layer to form a laminate. The lamination mechanism 1 includes an inlet end and an outlet end, and the cooling mechanism 2 can be arranged on one side of the outlet end. The lamination device 100 includes a transmission mechanism 5. The transmission mechanism 5 is respectively connected to the lamination mechanism 1 and the cooling mechanism 2. The transmission mechanism 5 can transfer the laminate from the lamination mechanism 1 to the cooling mechanism 2, so that the cooling part 21 of the cooling mechanism 2 cools the laminate.

[0026] The cooling part 21 can cool the laminate by means of water cooling. The heat exchange medium in the cooling flow channels 211 can be water or other liquids. The heat exchange medium can flow in the cooling flow channels 211. The plurality of cooling flow channels 211 can be interconnected or not. Along the first direction X, the cooling flow channels 211 and the adsorption part 22 are alternately arranged. The first direction X can be the length direction of the cooling mechanism 2. The number of the cooling flow channels 211 can be the same as the number of the adsorption parts 22.

[0027] The cooling part 21 has a first surface 21a for contacting the laminate. The adsorption part 22 can form a negative pressure environment between the first surface 21a and the laminate, so as to fix the laminate on the first surface 21a by using the air pressure difference, that is, the adsorption part 22 adsorbs the laminate 200 on the first surface 21a, so that the surface of the laminate is closely attached to the first surface 21a. After the laminate is adsorbed on the first surface 21a, the heat exchange medium in the cooling flow channels 211 absorbs the heat of the laminate to achieve the effect of heat dissipation and cooling of the laminate. That is to say, heat transfer can be achieved between the laminate and the cooling part 21 on the first surface 21a.

[0028] The cooling mechanism 2 of the laminating device 100 in the embodiment of the present application integrates a cooling function and an adsorption function, so that the laminate to be cooled can be stably adsorbed on the first surface 21a of the cooling part 21, increasing the degree of fit between the laminate and the cooling part 21, that is, increasing the contact area between the laminate and the cooling part 21, thereby improving the cooling rate and cooling effect of the laminate, and the cooling rate can reach 1°C to 20°C per minute. Since the cooling rate is increased, the crystallinity of the adhesive film in the laminate is reduced, thereby improving the light transmittance of the adhesive film to improve the light absorption efficiency of the photovoltaic module, and further improving the power of the photovoltaic module.

[0029] Among them, the cooling channels 211 for realizing the cooling function and the adsorption parts 22 for realizing the adsorption function are arranged alternately, so that the laminate is subjected to uniform cooling and adsorption effects, so that each area of the laminate can achieve good contact with the first surface 21a of the cooling part 21, thereby realizing synchronous cooling, reducing the possibility that the edge area of the laminate cannot be in contact with the cooling part 21 due to warping at the edge of the laminate, resulting in uneven heat distribution of the laminate, and further reducing the risks such as hidden cracks or deformation of the laminate caused by thermal stress, improving the reliability of the laminate, and further improving the quality and reliability of the photovoltaic module. At the same time, the adsorption force received by the laminate is more uniform, reducing the possibility of the laminate moving on the first surface 21a, and reducing the possibility of stress concentration in some areas of the laminate, also improving the reliability of the laminate and ensuring the cooling effect of the laminate. In addition, under the action of the adsorption force applied by the adsorption part 22, it is beneficial to improve the warping problem of the laminate and improve the flatness of the laminate, which is conducive to the subsequent preparation of the photovoltaic module, and also improves the quality and reliability of the photovoltaic module.

[0030] As Figure 2 shown, in some embodiments, the cooling mechanism 2 further includes a support part 23, and the support part 23 is connected to one side of the cooling part 21 and is used to support the cooling part 21 to improve the reliability and stability of the cooling part 21, thereby improving the cooling effect of the laminate.

[0031] As Figure 1 and Figure 3 shown, in some embodiments, the transmission mechanism 5 includes a conveyor belt 51, the conveyor belt 51 is made of high-temperature cloth material, the conveyor belt 51 can be connected to the cooling part 21, and is used to drive the movement of the laminate (not shown in the figure). Combining Figure 2 shown, the laminate contacts the first surface 21a of the cooling part 21 through the conveyor belt 51, and the conveyor belt 51 is provided with a plurality of air holes 511 to ensure the adsorption effect of the adsorption part 22, so that the laminate can be stably adsorbed on the first surface 21a of the cooling part 21.

[0032] As Figure 2 shown, in a possible implementation manner, along the first direction X, a plurality of cooling channels 211 are arranged at equal intervals, a plurality of adsorption parts 22 are arranged at equal intervals, and along the first direction X, the adjacent cooling channels 211 and adsorption parts 22 are arranged at intervals.

[0033] Along the first direction X, the spacing distance between any two adjacent cooling channels 211 is the same, and the distance between any two adjacent adsorption parts 22 is the same, that is, the cooling channels 211 and the adsorption parts 22 are arranged at uniform intervals, so as to improve the uniformity of the cooling effect and the adsorption effect on the laminate, so that the laminate can be stably adsorbed on the first surface 21a of the cooling part 21, thereby improving the heat dissipation and cooling effect.

[0034] Among them, the adjacent cooling channels 211 and the adsorption parts 22 are arranged at intervals, reducing the possibility of interference between the cooling channels 211 and the adsorption parts 22, so as to realize the reliable and stable cooling effect and adsorption effect of the cooling part 21 on the laminate, and ensure the heat dissipation and cooling effect of the laminate.

[0035] In some embodiments, multiple cooling channels 211 are arranged at uniform intervals. Along the first direction X, the spacing distance L3 between adjacent cooling channels 211 satisfies: 20mm ≤ L3 ≤ 100mm. For example, L3 can be 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm or 100mm. Of course, it can also be other values within the above range. If the spacing distance between adjacent cooling channels 211 is too large, it will lead to poor cooling effect in local areas of the laminate, resulting in uneven heat dissipation, and further making the laminate prone to hidden cracks, affecting the quality of the photovoltaic module, and at the same time causing a decrease in the cooling rate, affecting the preparation efficiency and performance of the photovoltaic module. If the spacing distance between adjacent cooling channels 211 is too small, it will make the arrangement of the cooling channels 211 too dense, affecting the structural stability of the cooling part 21, making the cooling part 21 prone to cracking and deformation, thus affecting the preparation of the photovoltaic module. Therefore, by restricting the distance between adjacent cooling channels 211, while ensuring the structural stability of the cooling part 21, the cooling effect of the laminate is improved, and at the same time, the cooling efficiency is enhanced to reduce the crystallinity of the adhesive film in the laminate, thereby improving the light transmittance of the adhesive film and further increasing the power of the photovoltaic module.

[0036] In some embodiments, the plurality of adsorption portions 22 are arranged at uniform intervals. Along the first direction X, the interval distance L4 between adjacent adsorption portions 22 satisfies: 20 mm ≤ L4 ≤ 100 mm. For example, L4 can be 20 mm, 25 mm, 35 mm, 45 mm, 55 mm, 65 mm, 75 mm, 85 mm, 95 mm or 100 mm. Of course, it can also be other values within the above range. If the interval distance between adjacent adsorption portions 22 is too small, the adsorption force on the laminate will be too large, increasing the risk of cracking and deformation of the laminate, and at the same time increasing the operating cost of the laminating equipment. If the interval distance between adjacent adsorption portions 22 is too large, it will be difficult for the laminate to be stably adsorbed on the first surface 21a of the cooling portion 21. Especially when the edge of the laminate warps, the adsorption force provided by the adsorption portion 22 to the laminate is limited, resulting in the edge region of the laminate being difficult to contact the first surface 21a of the cooling portion 21, thereby causing uneven heat distribution in the laminate, causing hidden cracks or deformation in the laminate, and at the same time reducing the cooling rate of the laminate. Therefore, by restricting the interval distance between adjacent adsorption portions 22, the adsorption portion 22 can provide a stable and reliable adsorption effect for the laminate, thereby increasing the contact area between the laminate and the cooling portion 21, improving the cooling effect and cooling efficiency of the laminate, and further improving the reliability of the laminate itself.

[0037] As Figure 4 shown, in a possible implementation manner, the adsorption portion 22 includes an adsorption unit 221. The adsorption unit 221 includes a plurality of vacuum adsorption holes 2211 arranged continuously along the second direction Y. The vacuum adsorption holes 2211 are provided on the first surface 21a and are spaced apart from the cooling channels 211. Among them, the diameter D1 of the vacuum adsorption holes 2211 satisfies: 2 mm ≤ D1 ≤ 20 mm.

[0038] The laminating mechanism may have a vacuum pumping mechanism (not shown in the figure). The vacuum adsorption holes 2211 are connected to the vacuum pumping mechanism. The vacuum pumping mechanism pumps air through the vacuum adsorption holes 2211, thereby forming a negative pressure environment around the first surface 21a of the cooling portion 21 to adsorb the laminate and make the adsorbed object adhere tightly to the first surface 21a.

[0039] Please also refer to Figure 2 , the second direction Y may be the width direction of the cooling mechanism 2. The vacuum adsorption holes 2211 are arranged continuously along the second direction Y, and there is a certain interval between the vacuum adsorption holes 2211 and the cooling channels 211 to reduce the possibility of interference between the vacuum adsorption holes 2211 and the cooling channels 211 and improve the reliability of the cooling mechanism 2.

[0040] The diameter D1 of the vacuum adsorption holes 2211 can be 2mm, 5mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm or 20mm. Of course, it can also be other values within the above range. If the diameter of the vacuum adsorption holes 2211 is too small, the overall working efficiency of the adsorption part 22 will be reduced, and it will be difficult for the adsorption part 22 to provide a reliable adsorption effect for the laminate, thus affecting the cooling effect and cooling efficiency of the laminate. If the diameter of the vacuum adsorption holes 2211 is too large, it is easy to reduce the structural strength of the first surface 21a and the entire cooling part 21, thus affecting the reliability of the cooling part 21. Therefore, by restricting the diameter of the vacuum adsorption holes 2211, while ensuring the structural strength of the cooling part 21, the reliability of the adsorption part 22 can be improved, so that it can play a stable and reliable adsorption role on the laminate, increasing the contact area between the laminate and the cooling part 21, and improving the cooling effect and cooling efficiency of the laminate.

[0041] The adsorption force provided by the vacuum adsorption holes can be adjusted according to the position where the vacuum adsorption holes are located. In some embodiments, the adsorption force of the vacuum adsorption holes corresponding to the edge region of the laminate is greater than the adsorption force of the vacuum adsorption holes corresponding to the central region of the laminate, so that the warped positions at the edges of the laminate can be stably adsorbed on the first surface of the cooling part, so as to make good contact with the first surface, improving the cooling rate and cooling effect of the laminate. At the same time, it is beneficial to improve the warping problem of the laminate, improve the flatness of the laminate, which is conducive to the subsequent preparation of photovoltaic modules, and also improves the quality and reliability of the photovoltaic modules.

[0042] As Figure 4 shown, in some embodiments, the cross-sectional shape (i.e., the cross-section along the second direction Y) of the vacuum adsorption holes 2211 can be circular, that is, the vacuum adsorption holes 2211 can be circular holes. Circular holes are easy to process and have high structural stability and are not easy to crack, thus improving the reliability of the adsorption part 22.

[0043] In other embodiments, the cross-sectional shape of the vacuum adsorption holes can be oval, oblong, rectangular, polygonal and other shapes.

[0044] The cross-sectional shape of the vacuum adsorption holes can be designed according to the actual use needs of the cooling mechanism. Optionally, all the vacuum adsorption holes on the cooling part can be of the same shape. For example, all the vacuum adsorption holes are circular holes. Or, the shapes of the vacuum adsorption holes in different regions of the cooling part are different. For example, the vacuum adsorption holes in a part of the region of the cooling part are circular holes, and the vacuum adsorption holes in another part of the region are oblong holes.

[0045] In some embodiments, the vacuum adsorption holes are tapered holes, that is, the shape of the cross-section of the vacuum adsorption holes changes gradually. The design of the tapered holes can reduce the resistance received by the air flow when passing through the vacuum adsorption holes, thereby improving the air extraction efficiency of the vacuum extraction device, which is beneficial to quickly adsorb the laminate on the first surface of the cooling part.

[0046] In other embodiments, the vacuum adsorption holes are stepped holes, that is, the vacuum adsorption holes include two hole segments, a large-aperture segment and a small-aperture segment. The design of the stepped holes can reduce the resistance received by the air flow when passing through the vacuum adsorption holes, improve the air extraction efficiency of the vacuum extraction device, and at the same time have a lower processing difficulty and higher structural stability.

[0047] As Figure 4 shown, in a possible implementation manner, a plurality of vacuum adsorption holes 2211 are arranged at equal intervals along the second direction Y, and the interval distance L1 between two adjacent vacuum adsorption holes 2211 satisfies: 10mm ≤ L1 ≤ 30mm.

[0048] A plurality of vacuum adsorption holes 2211 are arranged at equal intervals along the second direction Y to provide a stable and reliable adsorption effect on the laminate, and make the adsorption force received by the laminate more uniform, reducing the possibility of stress concentration in some areas of the laminate, improving the reliability of the laminate, and at the same time ensuring the cooling effect and cooling efficiency of the laminate.

[0049] The interval distance L1 between two adjacent vacuum adsorption holes 2211 can be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm or 30mm. Of course, it can also be other values within the above range. If the distance between two adjacent vacuum adsorption holes 2211 is too small, it is easy to cause the adsorption force received by the laminate to be too large, thereby increasing the risk of cracking and deformation of the laminate. If the distance between two adjacent vacuum adsorption holes 2211 is too large, it is difficult for the laminate to be stably adsorbed on the first surface 21a of the cooling part 21. Especially when the edge of the laminate warps, the adsorption force provided by the adsorption part 22 to the laminate is limited, resulting in the edge area of the laminate being difficult to contact the cooling part 21, thereby causing the possibility of uneven heat distribution of the laminate, causing the laminate to have hidden cracks or deformations, and at the same time reducing the cooling rate of the laminate. Therefore, by restricting the interval distance between adjacent vacuum adsorption holes 2211, the adsorption part 22 can provide a stable and reliable adsorption effect on the laminate, thereby increasing the contact area between the laminate and the cooling part 21, improving the cooling rate of the laminate, and thus improving the reliability of the laminate itself.

[0050] In some other embodiments, the adsorption part includes an adsorption unit. The adsorption unit includes a plurality of suction cups arranged continuously along the second direction. The suction cups are disposed on the first surface and are spaced apart from the cooling channels. Among them, the suction cups can be silicone suction cups or rubber suction cups, and the suction cups can better fit the surface of the laminate to improve the overall adsorption effect of the adsorption part.

[0051] As Figure 4 shown, in a possible implementation manner, the adsorption part 22 includes at least two adsorption units 221. The at least two adsorption units 221 are spaced apart along the first direction X. Among them, the spacing distance L2 between two adjacent adsorption units 221 satisfies: 10 mm ≤ L2 ≤ 30 mm.

[0052] The adsorption part 22 can have two, three, four or more adsorption units 221, so that the adsorption part 22 provides a stable and reliable adsorption effect for the laminate, thereby increasing the contact area between the laminate and the cooling part 21 and improving the cooling rate of the laminate. The spacing distance L2 between two adjacent adsorption units 221 can be 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm or 30 mm. Of course, it can also be other values within the above range. By restricting the spacing distance between the two adsorption units 221, the area of the action region of an adsorption part 22 is ensured to be within a reasonable range, so that the laminate can be simultaneously subjected to a uniform cooling effect and an adsorption effect.

[0053] As Figure 4 shown, in some embodiments, along the first direction X, the distance L5 between the outermost adsorption part 22 and the edge of the cooling part 21 satisfies: L5 ≥ 10 mm, that is, there is a certain interval between the outermost vacuum adsorption hole 2211 and the edge of the cooling part 21. Along the second direction Y, the distance L6 between the adsorption part 22 and the edge of the cooling part 21 satisfies: L6 ≥ 10 mm, that is, there is a certain interval between the outermost vacuum adsorption hole 2211 and the edge of the cooling part 21. There is a certain interval between the adsorption part 22 and the edge of the cooling part 21 to improve the stability of the setting of the adsorption part 22, so as to ensure that the adsorption part 22 plays a stable and reliable adsorption role on the laminate.

[0054] As Figures 4 to 6 shown, in a possible implementation manner, the cooling part 21 includes at least one working area 21b. One working area 21b is used to process one laminate 200, and the area of one working area 21b is the same as the area of one laminate 200. The working area 21b includes a plurality of alternately distributed adsorption parts 22 and cooling channels 211.

[0055] The number of working areas 21b can be from 1 to 18. That is to say, one cooling unit 21 can cool one or more laminates 200 simultaneously. A plurality of adsorption parts 22 and a plurality of cooling channels 211 are arranged in one working area 21b, and the adsorption parts 22 and the cooling channels 211 are arranged alternately. Such a design realizes the reasonable distribution of the adsorption parts 22 and the cooling channels 211 on the cooling unit 21, enabling the laminate 200 located inside the working area to be uniformly cooled and adsorbed. This not only improves the cooling rate but also ensures that all regions of the laminate 200 are in good contact with the first surface 21a of the cooling unit 21, reducing the possibility of uneven heat distribution in the laminate 200 caused by warping at the edges of the laminate 200, which leads to the inability of the edge regions to contact the cooling unit 21, and further reducing the risks such as latent cracks or deformation of the laminate 200 caused by thermal stress, thereby improving the reliability of the laminate 200.

[0056] As Figure 4 and Figure 5 shown, in a possible implementation, the working area 21b includes N adsorption units 221 arranged along the first direction X, where N satisfies: 20 ≤ N ≤ 140, and each adsorption unit 221 includes M vacuum adsorption holes 2211, where M satisfies: 50 ≤ M ≤ 350.

[0057] The number N of adsorption units 221 in the working area 21b can be 20, 40, 60, 80, 100, 120, or 140, and of course, it can also be other values within the above range. The number M of vacuum adsorption holes 2211 in one adsorption unit 221 can be 50, 100, 150, 200, 250, 300, or 350, and of course, it can also be other values within the above range.

[0058] By limiting the number of adsorption units 221 and vacuum adsorption holes 2211 in one working area 21b, the laminate 200 placed on the cooling unit 21 can be stably, reliably, and uniformly adsorbed, thereby ensuring the cooling effect of the laminate 200, improving the cooling rate of the laminate 200, and further improving the reliability of the laminate 200.

[0059] As Figure 6 shown, in a possible implementation, the laminating device 100 further includes a pressing mechanism 3. The pressing mechanism 3 is connected to one side of the cooling mechanism 2, and there is an accommodation space for accommodating the laminate 200 between the pressing mechanism 3 and the cooling mechanism 2. Among them, the pressing mechanism 3 includes at least one pressing plate 31. Please also refer to Figure 2 , and the pressing plate 31 can move relative to the cooling mechanism 2 to press the laminate 200 onto the first surface 21a.

[0060] Along the height direction Z of the cooling mechanism 2, a receiving space is formed between the pressing mechanism 3 and the first surface 21a of the cooling part 21. The laminated part 200 processed by the laminating mechanism can be conveyed onto the first surface 21a of the cooling part 21. The pressing plate 31 of the pressing mechanism 3 can contact the surface of the laminated part 200, thereby pressing the laminated part 200 onto the first surface 21a, improving the degree of fit between the laminated part 200 and the first surface 21a of the cooling part 21, increasing the contact area between the laminated part 200 and the first surface 21a, and thus improving the cooling rate and cooling effect of the laminated part 200. At the same time, under the pressing action of the pressing mechanism 3, it is beneficial to improve the warping problem of the laminated part 200, so as to improve the overall quality and reliability of the photovoltaic module.

[0061] As can be seen from the above, in some embodiments of the present application, the laminating equipment includes the above-mentioned laminating mechanism, cooling mechanism and pressing mechanism. After the laminated part is transported by the laminating mechanism to the cooling part of the cooling mechanism, the adsorption part can adsorb the laminated part, and at the same time the pressing plate can press the laminated part. That is to say, the laminated part can be simultaneously subjected to the adsorption action of the adsorption part and the pressing action of the pressing plate, so that the laminated part is closely attached to the first surface of the cooling part, thereby realizing full contact between the laminated part and the first surface, ensuring the heat dissipation and cooling effect of the laminated part, and improving the cooling rate of the laminated part.

[0062] As Figure 7 shown, in a possible implementation manner, the pressing mechanism 3 includes four pressing plates 31, and the four pressing plates 31 are respectively used to contact the four corners of the laminated part 200. The pressing plate 31 includes a contact surface for contacting the laminated part 200, and the area S of the contact surface satisfies: S≥2500mm 2 .

[0063] The contact surface of the pressing plate 31 for contacting the laminated part 200 can be a plane, which is beneficial to increasing the contact area between the pressing plate 31 and the laminated part 200, and at the same time reducing the possibility of the pressing plate 31 scratching the laminated part 200. The warping phenomenon usually easily appears at the four corners of the laminated part 200. By providing four pressing plates 31 corresponding to the corners of the laminated part 200, the four corners of the laminated part 200 can be subjected to the pressing action of the pressing mechanism 3, so that the warped parts of the laminated part 200 can better fit on the first surface 21a of the cooling part 21 (as Figure 2 shown), thereby increasing the contact area between the laminated part 200 and the cooling part 21, facilitating heat exchange between the laminated part 200 and the cooling part 21, and improving the cooling rate of the laminated part 200.

[0064] The area S of the contact surface of the pressing plate 31 satisfies: S≥2500mm 2 , for example, the area S of the contact surface can be 2500mm2 、 3000 mm 2 、 3500 mm 2 、 4000 mm 2 , the area of the contact surface of the pressing plate 31 can be designed according to the area of the laminate 200 actually processed, so as to ensure that there is sufficient contact area between the pressing plate 31 and the laminate 200, so that the pressing plate 31 plays a stable and reliable pressing role on the laminate 200, thereby improving the fitting degree between the laminate 200 and the first surface 21a of the cooling part 21.

[0065] As Figure 7 and Figure 8 shown, in a possible implementation manner, the pressing plate 31 includes a pressing part 311 and a connecting part 312. The pressing part 311 is connected to one end of the connecting part 312. The shape of the pressing part 311 is fan-shaped. The connecting part 312 includes a connecting section 3121 and an extending section 3122. A plurality of extending sections 3122 are arranged along the circumference of the connecting section 3121 and are connected to the connecting section 3121. The extending section 3122 extends in a direction away from the connecting section 3121. The laminating device 100 further includes a driving mechanism 4. The connecting section 3121 is detachably connected to the driving mechanism 4 so that the driving mechanism 4 drives the pressing plate 31 to move relative to the cooling mechanism 2.

[0066] Along the thickness direction of the pressing plate 31 itself, the pressing part 311 is connected to the lower end surface of the connecting part 312. The pressing part 311 is used to contact the laminate 200. The lower end surface of the pressing part 311 is the contact surface of the pressing plate 31 for contacting the laminate 200 as described above. The shape of the pressing part 311 is fan-shaped, so that the pressure applied by the pressing plate 31 to the laminate 200 is more evenly distributed, reducing the risk of hidden cracks caused by local stress concentration of the laminate 200. The connecting section 3121 of the connecting part 312 may be provided with a mounting hole, and the driving mechanism 4 is connected to the pressing plate 31 through the mounting hole. The thickness of the connecting section 3121 and the extending section 3122 of the connecting part 312 may be the same. The number of the extending sections 3122 may be three, four, five or more. The extending section 3122 extends in a direction away from the connecting section 3121. The extending section 3122 can improve the overall structural stability of the connecting part 312, thereby ensuring the stability and reliability of the connection between the pressing plate 31 and the driving mechanism 4.

[0067] The driving mechanism 4 can drive the pressing plate 31 to move along the length direction X (i.e., the above-mentioned first direction), the width direction Y (i.e., the above-mentioned second direction), and the height direction Z of the cooling mechanism 2, so as to adjust the position of the pressing plate 31 and facilitate the lamination of the laminate 200. The driving mechanism 4 is detachably connected to the connecting portion 312, so that pressing plates 31 of different specifications can be replaced according to the size of the laminate 200 to adjust the pressing area of the pressing plate 31 on the laminate 200, thereby improving the flexibility and reliability of the pressing mechanism 3.

[0068] Optionally, the driving mechanism can be detachably connected to the connecting portion by bolts.

[0069] In some other embodiments, the shape of the pressing portion can be rectangular, circular or other shapes, which can be specifically selected according to the requirements of the laminate.

[0070] Continue as Figure 7 As shown, in some embodiments, the above-mentioned driving mechanism 4 includes a first driving portion 41, a second driving portion (not shown in the figure), and a third driving portion 42. The first driving portion 41, the second driving portion, and the third driving portion 42 are all connected to the pressing plate 31. Among them, the first driving portion 41 is used to drive the pressing plate 31 to move along the height direction Z of the cooling mechanism 2 to achieve the lamination effect of the pressing plate 31 on the laminate 200. At the same time, by adjusting the position of the pressing plate 31 in the height direction Z of the cooling mechanism 2, the pressing plate 31 can adapt to laminates 200 of different thicknesses, thereby improving the flexibility of the pressing mechanism 3.

[0071] The second driving portion is used to drive the pressing plate 31 to move along the length direction X of the cooling mechanism 2. The second driving portion is connected to the first driving portion 41, so that the second driving portion drives the first driving portion 41 to move, thereby driving the pressing plate 31 connected to the first driving portion 41 to move to achieve the adjustment of the position of the pressing plate 31 in the length direction X of the cooling mechanism 2. The driving mechanism 4 includes a first guiding portion 43. The first guiding portion 43 can be a cross beam extending along the length direction X of the cooling mechanism 2. The second driving portion is connected to the first guiding portion 43 and can move along the first guiding portion 43.

[0072] The third driving part 42 is used to drive the pressing plate 31 to move along the width direction Y of the cooling mechanism 2. The driving mechanism 4 includes a second guiding part 44. The second guiding part 44 can be a longitudinal beam extending along the width direction Y of the cooling mechanism 2. The third driving part 42 is connected to the second guiding part 44 and can move along the second guiding part 44. The third driving part 42 is also connected to the above-mentioned first guiding part 43, so that the third driving part 42 can drive the first guiding part 43 to move along the width direction Y of the cooling mechanism 2, thereby driving the pressing plate 31 connected to the first guiding part 43 to move, so as to adjust the position of the pressing plate 31 in the width direction Y of the cooling mechanism 2.

[0073] In some embodiments, the above-mentioned first driving part, second driving part and third driving part can all be motors.

[0074] As Figure 9 shown, in some embodiments, the number of the pressing mechanisms 3 corresponds to the number of the laminates 200. That is to say, when the cooling mechanism 2 cools a plurality of laminates 200 at the same time, each laminate 200 has a corresponding pressing mechanism 3 for pressing.

[0075] In the laminating device according to the embodiment of the present application, the multi-layer structure of the photovoltaic module can be laminated by the laminating mechanism first to form a laminate. The laminate leaving the laminating mechanism is conveyed to the cooling part of the cooling mechanism by the conveying mechanism. The adsorption part and the pressing mechanism can act on the laminate at the same time, so that the laminate is simultaneously subjected to an adsorption force and a pressing force, so that the laminate is closely attached to the first surface of the cooling part. Or, one of the adsorption part or the pressing mechanism acts on the laminate. That is to say, the laminate can be only subjected to the adsorption action or only subjected to the pressing action. The laminate after cooling can leave the cooling mechanism for the next processing step.

[0076] Among them, when the pressing mechanism presses the laminate on the first surface, the four pressing plates of the pressing mechanism can respectively press on the four corners of the laminate. The corner of the laminate has an operating area of 200 mm × 200 mm, and the pressing plate is located within this operating area to press the laminate. Optionally, the area S of the contact surface between the pressing plate and the laminate satisfies: S≥2500mm 2 .

[0077] By controlling the driving mechanism, the pressing depth of the pressing plate can be controlled, that is, the magnitude of the pressure exerted by the pressing plate on the laminate can be controlled. Optionally, the pressure exerted by the pressing plate on the laminate is 5 kPa to 15 kPa, and the pressing duration of the pressing plate on the laminate is 60 s to 500 s.

[0078] In other embodiments, the pressing mechanism can also press the long side, short side or central area of the laminate, etc., to increase the contact area between the laminate and the cooling part.

[0079] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A lamination device, characterized in that, Comprising: A lamination mechanism; A cooling mechanism, the cooling mechanism being located on one side of the lamination mechanism, the cooling mechanism including a cooling part and an adsorption part, the adsorption part being arranged on the cooling part, the adsorption part being used for adsorbing the laminated part processed by the lamination mechanism onto the first surface of the cooling part; Wherein, the cooling part includes a cooling flow channel for accommodating a heat exchange medium, and a plurality of the cooling flow channels and a plurality of the adsorption parts are alternately arranged along a first direction.

2. The lamination device according to claim 1, characterized in that, Along the first direction, a plurality of the cooling flow channels are arranged at uniform intervals, a plurality of the adsorption parts are arranged at uniform intervals, and; Along the first direction, adjacent cooling flow channels and the adsorption parts are arranged at intervals.

3. The lamination device according to claim 1, wherein, The adsorption part includes an adsorption unit; The adsorption unit includes a plurality of vacuum adsorption holes arranged continuously along a second direction, the vacuum adsorption holes being arranged on the first surface, and the vacuum adsorption holes being arranged at intervals from the cooling flow channel; Wherein, the diameter D1 of the vacuum adsorption hole satisfies: 2mm ≤ D1 ≤ 20mm.

4. The laminating device according to claim 3, wherein A plurality of the vacuum adsorption holes are arranged at uniform intervals along the second direction, and the interval distance L1 between two adjacent vacuum adsorption holes satisfies: 10mm ≤ L1 ≤ 30mm.

5. The lamination device according to claim 4, characterized in that, The adsorption part includes at least two of the adsorption units, and at least two of the adsorption units are arranged at intervals along the first direction; Wherein, the interval distance L2 between two adjacent adsorption units satisfies: 10mm ≤ L2 ≤ 30mm.

6. The lamination device according to claim 3, characterized in that, The cooling part includes at least one working area, one working area being used for processing one laminated part, and the area of one working area being the same as the area of one laminated part; The working area includes a plurality of alternately distributed adsorption parts and cooling flow channels.

7. The laminating device according to claim 6, wherein The working area includes N adsorption units arranged along the first direction, N satisfying: 20 ≤ N ≤ 140, and; Each adsorption unit includes M of the vacuum adsorption holes, M satisfying: 50 ≤ M ≤ 350.

8. The laminating device according to any one of claims 1 to 7, characterized in that, The lamination equipment further includes a pressing mechanism, the pressing mechanism being connected to one side of the cooling mechanism, and there being an accommodation space for accommodating the laminated part between the pressing mechanism and the cooling mechanism; Wherein, the pressing mechanism includes at least one pressing plate, and the pressing plate can move relative to the cooling mechanism to press the laminated part onto the first surface.

9. The lamination device according to claim 8, characterized in that, The pressing mechanism includes four pressing plates, and the four pressing plates are respectively used for contacting the four corner parts of the laminated part; The pressing plate includes a contact surface for contacting the laminate, and the area S of the contact surface satisfies: S ≥ 2500 mm 2 .

10. The lamination device according to claim 8, characterized in that, The pressing plate includes a pressing part and a connecting part, the pressing part being connected to one end of the connecting part; The shape of the pressing part is a sector; The connecting part includes a connecting section and extending sections, a plurality of the extending sections being arranged along the circumferential direction of the connecting section and connected to the connecting section, the extending sections extending in a direction away from the connecting section; The lamination equipment further includes a driving mechanism, and the connecting section is detachably connected to the driving mechanism so that the driving mechanism drives the pressing plate to move relative to the cooling mechanism.

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