Laminating machine

Abstract

The utility model discloses a laminating machine. The laminating machine comprises a rack, a cross linkage device, a laminating unit and a driving device, the plurality of laminating units are arranged in the thickness direction, and the cross linkage device is in transmission connection with each laminating unit; the cross linkage device is directly connected with the rack, or the cross linkage device is indirectly connected with the rack through one of the laminating units, the driving device is in transmission connection with the cross linkage device, and the driving device drives the laminating units to synchronously get close to each other up and down or get away from each other up and down through the cross linkage device. Through the embodiment of the invention, the plurality of laminating units can be connected through the cross linkage device, and when the cross linkage device or one of the laminating units is driven to move by the driving device, the cross linkage device can transmit force to all the laminating units and drive all the laminating units to synchronously move in the thickness direction of the laminating units.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module production, and in particular to a laminating machine. Background Art

[0002] A multi-layer photovoltaic module laminator is a laminator that can arrange multiple laminating units up and down. In order to reduce costs, save space, and achieve the lamination of photovoltaic modules carried by multiple laminating units at the same time, during lamination, it is usually necessary to bring multiple laminating units closer to each other up and down to close the lamination cavity formed between the upper and lower adjacent laminating units, and the upper laminating unit laminates the photovoltaic modules in the lamination cavity. After lamination is completed, the multiple laminating units need to be moved away from each other up and down, that is, the lamination cavity is opened.

[0003] In order to realize the function of opening and closing multiple lamination cavities, the existing multi-layer photovoltaic module laminating machine usually realizes the following: a steel chain is used to connect all lamination units at the same time, and a driving part is used to drive the lamination units of the top layer or the bottom layer to move, so as to open and close all lamination cavities in sequence. This method causes each lamination cavity to have different opening and closing times and the time difference is large. Therefore, the heat dissipation conditions of the photovoltaic modules in each lamination cavity are greatly different, which in turn causes differences in the degree of thermal deformation of the photovoltaic modules, affecting the consistency of the production quality of photovoltaic modules. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a laminating machine to solve the problem of large difference in opening and closing time of each laminating chamber.

[0005] The present application provides a laminating machine, the laminating machine comprising: a frame, a cross-linking device, a laminating unit and a driving device;

[0006] A plurality of laminating units are arranged in the thickness direction thereof, and the cross-linking device is drivingly connected with each laminating unit;

[0007] The cross linkage is directly connected to the rack, or the cross linkage is indirectly connected to the rack through one of the lamination units.

[0008] The driving device is in driving connection with the cross linkage device, and the driving device drives each laminating unit to move closer to each other or farther away from each other synchronously up and down through the cross linkage device.

[0009] Based on a laminator, multiple lamination units can be connected through a cross-linking device. When the cross-linking device or one of the lamination units is driven by a driving device to move, the cross-linking device will transmit force to all the lamination units and drive all the lamination units to move synchronously in the thickness direction of the lamination units. Such a setting can also ensure that the photovoltaic modules on all the lamination units in the same laminator have the same heating time, ensure that the deformation degrees of all the photovoltaic modules tend to be consistent, reduce the damage rate of the battery chips during the lamination process, and at the same time, ensure that the melting degrees of the glue films in all the photovoltaic modules tend to be consistent, making the lamination of the photovoltaic modules in each lamination cavity more unified, reducing the process adjustment difficulty of the photovoltaic modules. At the same time, since this way of opening or closing all the lamination cavities synchronously does not need to take care of individual photovoltaic modules with too long heating time, it can further improve the production efficiency and applicability of the entire laminator.

[0010] Optionally, the cross-linking device includes a first transmission arm, a second transmission arm and a connecting shaft;

[0011] The first transmission arm and the second transmission arm are located on the same side of each lamination unit and both span the uppermost lamination unit and the lowermost lamination unit;

[0012] The first transmission arm and the second transmission arm are arranged in a cross-symmetric manner and are connected by a connecting shaft at the cross position;

[0013] The first end of the first transmission arm and / or the first end of the second transmission arm are slidably connected to the frame;

[0014] At least one of the first transmission arm and the second transmission arm is connected to the driving device;

[0015] Each lamination unit located above and below the connecting shaft is simultaneously slidably connected to both the first transmission arm and the second transmission arm.

[0016] The double-point support drive of the lamination unit is realized through the cross arrangement of the first transmission arm and the second transmission arm, improving the driving stability; the rotational support and synchronous action of the first transmission arm and the second transmission arm are ensured through the setting of the connecting shaft; the connection and drive of multiple lamination units are realized through the first transmission arm and the second transmission arm spanning the uppermost lamination unit and the lowermost lamination unit.

[0017] Optionally, two horizontally spaced and identically long slideways are provided on each lamination unit located above and below the connecting shaft, and the first transmission arm and the second transmission arm are respectively connected to the corresponding slideways of a lamination unit through a slider or a roller.

[0018] The slider or roller is arranged in coordination with the slideway so that the first transmission arm and the second transmission arm can drive the laminating unit to move more smoothly, and the direction of movement is effectively limited by the arrangement of the slideway to avoid deviation.

[0019] Optionally, the length of the slideway on the laminating unit far from the connecting axis is greater than the length of the slideway on the laminating unit close to the connecting axis.

[0020] By designing the length of the slideway far from the connecting shaft to be greater than the length of the slideway close to the connecting shaft, the entire laminating machine can be operated normally while avoiding material waste.

[0021] Optionally, the number of laminating units is 2n, the number of laminating units located on the upper side and the lower side of the connecting shaft are both n, and the laminating units located on the upper side and the lower side of the connecting shaft are symmetrically arranged, and the connecting shaft is fixedly mounted on the frame;

[0022] or,

[0023] The number of laminating units is 2n+1, the connecting shaft is fixedly installed on the middle laminating unit or on the frame, the number of laminating units located on the upper and lower sides of the connecting shaft are n, and the laminating units located on the upper and lower sides of the connecting shaft are symmetrically arranged.

[0024] The lengths of the first transmission arm and the second transmission arm on the upper and lower sides of the connecting shaft are equal, and combined with the arrangement of the above-mentioned laminating units, the cross-linkage device is connected with all the laminating units to form an overall symmetrical structure, and the overall structure is more stable and reliable.

[0025] Optionally, a support plate is provided below the bottommost laminating unit, and the second end of the first transmission arm and the second end of the second transmission arm are slidably mounted on the support plate.

[0026] When the lamination cavity between the lamination units is closed, the support plate and the lamination unit above it are also close to each other, and a lower sealed cavity is formed at the close position. When the lamination cavity is evacuated, the support plate can prevent the atmospheric pressure from directly acting on the lowest lamination unit, causing deformation of the lamination unit.

[0027] Optionally, the cross-linkage device includes at least two cross-shear assemblies arranged in sequence in the thickness direction of the laminating unit and corresponding to the laminating units one by one.

[0028] The cross shear assembly includes a first connecting rod, a second connecting rod and a cross shaft, wherein the first connecting rod and the second connecting rod are cross-arranged at the middle part and connected by the cross shaft; in two adjacent cross shear assemblies, the second end of the first connecting rod in the preceding cross shear assembly is rotatably connected to the first end of the second connecting rod in the succeeding cross shear assembly; the second end of the second connecting rod in the preceding cross shear assembly is rotatably connected to the first end of the first connecting rod in the succeeding cross shear assembly;

[0029] The cross shaft is fixedly installed on the corresponding lamination unit, and the cross shaft drives the lamination unit to rise or fall; and / or, the first connecting rod and the second connecting rod are slidably connected to the corresponding lamination unit at the same height.

[0030] The support and drive of the lamination unit are realized by a plurality of cross shear assemblies arranged in the thickness direction of the lamination unit, and the number of lamination units is controlled by controlling the number of cross shears, so as to meet the support and drive requirements of different numbers of lamination units.

[0031] Optionally, the first connecting rod and the second connecting rod have the same length;

[0032] The center point of the first connecting rod and the center point of the second connecting rod are rotationally matched through the cross shaft.

[0033] Such a setting can achieve the synchronous movement of all lamination units in the thickness direction when the first connecting rod and the second connecting rod rotate around the cross shaft by a certain angle. Furthermore, it can ensure that all lamination units can be closed at the same time, or at any time, all lamination units can maintain the same spacing. Thus, it can further ensure that the photovoltaic modules on all lamination units in the same laminator are heated for the same time, ensure that the deformation degrees of all photovoltaic modules tend to be consistent, reduce the damage rate of the battery chips during the lamination process, and at the same time, ensure that the melting degrees of the glue films in all photovoltaic modules tend to be consistent, make the lamination of the photovoltaic modules in each lamination cavity more unified, reduce the process adjustment difficulty of the photovoltaic modules. At the same time, since this way of opening or closing all lamination cavities synchronously does not need to take care of individual photovoltaic modules with too long heating time, it can also further improve the production efficiency and applicability of the entire laminator.

[0034] Optionally, the cross-linking device further includes two end connection assemblies with the same structure. The end connection assembly includes a third connecting rod, a fourth connecting rod and a locking shaft. The third connecting rod and the fourth connecting rod have the same length;

[0035] The first end of the third connecting rod and the first end of the fourth connecting rod are rotationally connected through the locking shaft;

[0036] The second end of the third connecting rod is hinged to the first end or the second end of the first connecting rod of the adjacent cross shear assembly, and the second end of the fourth connecting rod is hinged to the first end or the second end of the second connecting rod of the adjacent cross shear assembly;

[0037] The locking shaft of the upper end connection assembly is fixedly installed on the frame, a support plate is arranged below the lowermost lamination unit, and the locking shaft of the lower end connection assembly is fixedly installed on the support plate.

[0038] The separate end connection is achieved through the setting of the end connection component, and the hinged connection between the cross-linking device and the frame is achieved through the setting of the locking rotating shaft, which increases the connection stability.

[0039] Optionally, all the first connecting rods are located in the first plane, all the second connecting rods are located in the second plane, and the first plane and the second plane are staggered in the extending direction of the cross rotating shaft.

[0040] The first connecting rod and the second connecting rod only occupy the space of two connecting rod thicknesses in the axial direction of the cross rotating shaft, thereby preventing the cross cutting assembly from occupying too much space on the periphery of the lamination unit and affecting the layout of the entire laminator.

[0041] Optionally, the driving device is directly or indirectly connected to the cross cutting assembly, and the driving device drives the cross cutting assembly to contract or extend, so as to realize that each lamination unit moves closer to or away from each other synchronously in the up and down directions.

[0042] Optionally, at least two cross-linking devices are provided, and at least two cross-linking devices are arranged at intervals on the same side of each lamination unit, and / or at least two cross-linking devices are respectively arranged on both sides in the width direction of each lamination unit.

[0043] Optionally, a guide rail extending in the vertical direction is provided on the frame, and a sliding block slidably matched with the guide rail is provided on the lamination unit.

[0044] Through the setting of the guide rail, the support points for the lamination unit can also be increased, and the stability and reliability of the lamination unit during movement can be improved.

[0045] Optionally, the laminator further includes a loading conveyor line and a lifter. The conveying height of the loading conveyor line is aligned with the position height of the middle layer of the multi-layer lamination unit in the thickness direction. The lifter is located between the loading conveyor line and the lamination unit and is used to transfer the photovoltaic module on the loading conveyor line to one of the lamination units.

[0046] Optionally, the laminator further includes a storage area, and the storage area is arranged between the lifter and the lamination unit; the storage area includes multiple layers of storage racks, and each layer of storage rack corresponds to one lamination unit; the lifter is used to transfer the photovoltaic module on the loading conveyor line to the multi-layer storage racks, and the multi-layer storage racks simultaneously convey the stored photovoltaic modules to the corresponding lamination unit.

[0047] Through the setting of the storage area, the advance caching and overall feeding of the photovoltaic modules are realized, and the situation that the photovoltaic modules in different lamination units are heated inconsistently when feeding the lamination units individually is avoided.

[0048] One or more of the above embodiments of the present application have at least one or more of the following beneficial effects:

[0049] A plurality of laminating units can be connected through a cross-linking device. When the cross-linking device or one of the laminating units is driven by a driving device to move, the cross-linking device will transmit the force to all the laminating units and drive all the laminating units to move synchronously in the thickness direction of the laminating units. Such a setting can also ensure that the photovoltaic modules on all the laminating units in the same laminator are heated for the same time, ensure that the deformation degrees of all the photovoltaic modules tend to be consistent, reduce the damage rate of the battery chips during the laminating process, and at the same time, ensure that the melting degrees of the adhesive films in all the photovoltaic modules tend to be consistent, making the lamination of the photovoltaic modules in each laminating cavity more uniform, reducing the process adjustment difficulty of the photovoltaic modules. At the same time, since this way of opening or closing all the laminating cavities synchronously does not need to take care of individual photovoltaic modules with too long heating time, it can also further improve the production efficiency and applicability of the entire laminator.

[0050] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Referring to the drawings, the disclosure of the present application will become more understandable. It is easy for those skilled in the art to understand that: these drawings are only for illustrative purposes and are not intended to limit the protection scope of the present application. In addition, similar numbers in the drawings are used to represent similar components, where:

[0052] Figure 1 is a schematic structural diagram of a laminator in an embodiment of the present application;

[0053] Figure 2 is Figure 1 the front view of

[0054] Figure 3 is Figure 1 the side view of

[0055] Figure 4 is a schematic structural diagram of the laminator in an embodiment of the present application after removing the frame structure on the rack;

[0056] Figure 5 is Figure 4 the front view of

[0057] Figure 6 is Figure 4 the side view of

[0058] Figure 7 is Figure 4 the top view of

[0059] Figure 8 is a schematic structural diagram of a cross-cutting assembly in an embodiment of the present application;

[0060] Figure 9 is a side view of Figure 8 ;

[0061] Figure 10 is a front view of Figure 8 ;

[0062] Figure 11 is a schematic structural diagram of a laminator in another embodiment of the present application;

[0063] Figure 12 is a schematic structural diagram of the laminator during feeding in the embodiment of the present application.

[0064] Explanation of reference numerals

[0065] 1. Frame; 11. Guide rail; 21. Cross-cutting shear assembly; 211. First connecting rod; 212. Second connecting rod; 213. Cross-rotating shaft; 214. Third connecting rod; 215. Fourth connecting rod; 216. Locking rotating shaft; 221. First driving arm; 222. Second driving arm; 223. Connecting shaft; 3. Laminating unit; 31. Slideway; 32. Guide wheel; 4. Support plate; 51. Feeding conveyor line; 52. Lift; 6. Photovoltaic module. Detailed implementation manners

[0066] Some embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present application and are not intended to limit the protection scope of the present application.

[0067] A multi-layer photovoltaic module laminator is a laminator that can arrange multiple laminating units vertically. In order to reduce costs and simultaneously laminate the photovoltaic modules carried by multiple laminating units, during lamination, it is usually necessary to move multiple laminating units closer to each other vertically to close the lamination cavity formed between two adjacent upper and lower laminating units, and the adjacent laminating units laminate the photovoltaic modules in the lamination cavity. After lamination, it is necessary to move multiple laminating units away from each other vertically, that is, to open the lamination cavity.

[0068] In order to realize the function of opening and closing multiple lamination cavities in the existing multi-layer photovoltaic module laminator, the usual implementation method is: using a steel chain to connect all the laminating units at the same time, and using a driving member to drive the laminating unit at the top layer or the bottom layer to move, so as to open and close all the lamination cavities in sequence. This method results in different opening and closing times for each lamination cavity and a large time difference. Therefore, there are significant differences in the heat dissipation conditions of the photovoltaic modules in each lamination cavity, which in turn leads to differences in the degree of thermal deformation of the photovoltaic modules, affecting the consistency of the production quality of the photovoltaic modules.

[0069] The lamination unit is a mechanism for carrying, conveying, and heating the photovoltaic modules to be laminated, mainly including a heating plate, a high-temperature cloth, a vacuum pumping device, a sealing ring, and a lamination component. When two adjacent lamination units approach each other, the cavity formed between the two lamination units is sealed by the sealing ring provided below the upper lamination unit, thereby forming a lamination cavity, and then the upper lamination unit performs a lamination process of first evacuating the air and then inflating and laminating the photovoltaic module in the lamination cavity, and the lamination component laminates the photovoltaic module to be laminated in the lamination cavity.

[0070] Based on this, the present application provides a laminator, which can connect multiple lamination units through a cross-linking device. When the cross-linking device or one of the lamination units is driven by a driving device to move, the cross-linking device will transmit the force to all the lamination units and drive all the lamination units to move synchronously in the thickness direction of the lamination unit. Such a setting can also ensure that the photovoltaic modules on all the lamination units in the same laminator have the same heating time, ensure that the deformation degrees of all the photovoltaic modules tend to be consistent, reduce the damage rate of the battery chips during the lamination process, and at the same time, ensure that the melting degrees of the adhesive films in all the photovoltaic modules tend to be consistent, make the lamination of the photovoltaic modules in each lamination cavity more uniform, reduce the process adjustment difficulty of the photovoltaic modules. At the same time, since this way of opening or closing all the lamination cavities synchronously does not need to take care of individual photovoltaic modules with too long heating time, it can further improve the production efficiency and applicability of the entire laminator.

[0071] Referring to Figures 1 to 12 As shown in the figure, this embodiment provides a laminator, which includes: a frame 1, a cross-linking device, a lamination unit 3, and a driving device; multiple lamination units 3 are arranged in their thickness directions, and the cross-linking device is in transmission connection with each lamination unit 3; the cross-linking device is directly connected to the frame 1, or the cross-linking device is indirectly connected to the frame 1 through one of the lamination units 3, the driving device is in transmission connection with the cross-linking device, and the driving device drives each lamination unit 3 to move synchronously closer to or away from each other up and down through the cross-linking device.

[0072] The laminator provided in this embodiment can connect multiple lamination units 3 through a cross-linking device. When the cross-linking device or one of the lamination units 3 is driven by a driving device to move, the cross-linking device will transmit the force to all the lamination units 3 and drive all the lamination units 3 to move synchronously in the thickness direction of the lamination unit 3.

[0073] This setting can ensure that the photovoltaic modules 6 on all the lamination units 3 in the same laminator have the same heating time, ensure that the deformation degrees of all the photovoltaic modules 6 tend to be consistent, reduce the damage rate of the battery chips during the lamination process, and at the same time, ensure that the melting degrees of the glue films in all the photovoltaic modules 6 tend to be consistent, make the lamination of the photovoltaic modules 6 in each lamination cavity more uniform, reduce the process adjustment difficulty of the photovoltaic modules 6. At the same time, since this way of opening or closing all the lamination cavities synchronously does not need to take care of individual photovoltaic modules 6 with too long heating time, it can also further improve the production efficiency and applicability of the entire laminator.

[0074] Continue to refer to Figure 11 As shown, in some embodiments, the cross-linking device includes a first transmission arm 221, a second transmission arm 222 and a connecting shaft 223; the first transmission arm 221 and the second transmission arm 222 are located on the same side of each lamination unit 3, and both span the uppermost lamination unit 3 and the lowermost lamination unit 3; the first transmission arm 221 and the second transmission arm 222 are arranged in a cross-symmetrical manner and are rotatably connected at the cross position through the connecting shaft 223; the first end of the first transmission arm 221 and / or the first end of the second transmission arm 222 are slidably connected to the frame 1.

[0075] Further, the first end of the first transmission arm 221 can be the top end or the bottom end of the first transmission arm 221, and the first end of the second transmission arm 222 can be the top end or the bottom end of the second transmission arm 222, as long as it can be ensured that when the first transmission arm 221 and the second transmission arm 222 rotate relative to each other, at least one of the first ends of the two can slide relative to the frame 1 to avoid forming a dead point at the connection between the first transmission arm 221 and the second transmission arm 222 and the frame 1; it should be noted that the first end of the first transmission arm 221 and / or the first end of the second transmission arm 222 can be directly slidably connected to the frame 1, or the two can be slidably connected to the frame 1 through the lamination unit 3 connected to the frame 1 to achieve relative sliding with the frame 1.

[0076] In one implementation, the first end of the first transmission arm 221 is slidably connected to the frame 1, and the first end of the second transmission arm 222 is hinged to the frame 1; or, the first end of the first transmission arm 221 is hinged to the frame 1, and the first end of the second transmission arm 222 is slidably connected to the frame 1; or the first end of the first transmission arm 221 is slidably connected to the frame 1, and the first ends of the second transmission arm 222 are both slidably connected to the frame 1.

[0077] In one implementation, the chute connection mentioned in the present application can be a slider-rail connection or a rail-pulley connection.

[0078] Specifically, at least one of the first transmission arm 221 and the second transmission arm 222 is connected to the driving device. The first transmission arm 221 and the second transmission arm 222 can be directly connected to the output end of the driving device to enable the driving device to directly drive the first transmission arm 221 and / or the second transmission arm 222 to slide relative to the frame 1. Alternatively, the driving device can be connected to the lamination unit 3, and by driving the lamination unit 3 to move in its thickness direction, the first transmission arm 221 and the second transmission arm 222 can be driven to slide relative to the frame 1.

[0079] In one implementation, there is one driving device, and the output end of the driving device is connected to the first transmission arm 221. Alternatively, there is one driving device, and the output end of the driving device is connected to the second transmission arm 222. Or there are two driving devices, one of which is connected to the first transmission arm 221 and the other is connected to the second transmission arm 222.

[0080] The first transmission arm 221 and the second transmission arm 222 can be structures such as rods or bars that play a role in support and transmission.

[0081] Further, each lamination unit 3 located above and below the connecting shaft 223 is simultaneously slidably connected to both the first transmission arm 221 and the second transmission arm 222.

[0082] When the first transmission arm 221 and the second transmission arm 222 rotate relative to each other, the lamination unit 3 slides relative to the first transmission arm 221 and the second transmission arm 222, so that the first transmission arm 221 and the second transmission arm 222 can drive the lamination unit 3 to move along the thickness direction of the lamination unit 3 while keeping the lamination unit 3 horizontal.

[0083] In one implementation, the above-mentioned sliding connection can be achieved by providing slideways on the lamination unit 3 and rollers or sliders on the first transmission arm 221 and the second transmission arm 222.

[0084] In some embodiments, two horizontally spaced slideways 31 of the same length are provided on each lamination unit 3 located above and below the connecting shaft 223. The first transmission arm 221 and the second transmission arm 222 are respectively connected to the corresponding slideways 31 of one lamination unit 3 through a slider or a roller. It should be noted that sliding rotating shafts extending in the horizontal direction can be provided on the first transmission arm 221 and the second transmission arm 222. Sliders slidably engaged with the slideways 31 can be rotatably sleeved on the sliding rotating shafts, and planar structures for supporting the slideways 31 in the thickness direction of the lamination unit 3 can be provided on the sliders. Rollers rollingly engaged with the slideways 31 can be rotatably sleeved on the sliding rotating shafts, so that the first transmission arm 221 and the second transmission arm 222 can achieve rolling engagement with the slideways 31.

[0085] Continue to refer to Figure 11 As shown, in some embodiments, the length of the slideway 31 on the lamination unit 3 far from the connecting shaft 223 is greater than the length of the slideway 31 on the lamination unit 3 close to the connecting shaft 223. Since both the first transmission arm 221 and the second transmission arm 222 rotate by a set angle around the connecting shaft 223, the part of them far from the connecting shaft 223 has a longer movement path than the part close to the connecting shaft 223, so it needs to slide or roll on a longer slideway 31. By designing the length of the slideway 31 far from the connecting shaft 223 to be greater than the length of the slideway 31 close to the connecting shaft 223, it can not only enable the entire laminator to work properly, but also avoid material waste.

[0086] In some further embodiments, the number of lamination units 3 is 2n, with n lamination units 3 on both the upper and lower sides of the connecting shaft 223, and the lamination units 3 on the upper and lower sides of the connecting shaft 223 are symmetrically arranged. The connecting shaft 223 is fixedly installed on the frame 1; alternatively, the number of lamination units 3 is 2n + 1, the connecting shaft 223 is fixedly installed on the middle lamination unit 3 or fixedly installed on the frame 1, with n lamination units 3 on both the upper and lower sides of the connecting shaft 223, and the lamination units 3 on the upper and lower sides of the connecting shaft 223 are symmetrically arranged. It should be understood that the lengths of both the first transmission arm 221 and the second transmission arm 222 on the upper and lower sides of the connecting shaft 223 are equal. Combining with the above arrangement of the lamination units 3, the cross-linking device is connected to all the lamination units 3 to form a symmetrical structure as a whole, and the overall structure is more stable and reliable.

[0087] In one implementation, the distance between every two adjacent lamination units 3 is equal. Such a setting can achieve the synchronous movement of all lamination units 3 in their own thickness direction when the first transmission arm 221 and the second transmission arm 222 rotate by a certain angle around the connecting shaft 223. Furthermore, it can ensure that all lamination units 3 can be closed at the same time, thereby further ensuring that the photovoltaic modules 6 on all lamination units 3 in the same laminator have the same heating time, ensuring that the deformation degrees of all photovoltaic modules 6 tend to be consistent, reducing the damage rate of the battery wafers during lamination, and at the same time, ensuring that the melting degrees of the glue films in all photovoltaic modules 6 tend to be consistent, making the lamination of the photovoltaic modules 6 in each lamination cavity more unified, reducing the process adjustment difficulty of the photovoltaic modules 6. At the same time, since this way of opening or closing all lamination cavities synchronously does not need to take care of individual photovoltaic modules 6 with too long heating time, it can also further improve the production efficiency and applicability of the entire laminator.

[0088] In some embodiments, in order to achieve better support for the lamination unit 3 and more uniform force application, a support plate 4 is provided below the lowermost lamination unit 3, and the second ends of the first transmission arm 221 and the second transmission arm 222 are slidably mounted on the support plate 4; when the lamination cavities between the lamination units 3 are closed, the support plate 4 also approaches the lamination unit 3 above it, and a lower sealing cavity is formed at the approaching position. When the lamination cavities are evacuated, the sealing cavity between the support plate 4 and the lamination unit 3 above the support plate 4 can prevent the atmospheric pressure from directly acting on the lowermost lamination unit 3, causing deformation of the lamination unit 3.

[0089] Further, the support plate 4 can be a steel plate, an iron plate or other rigid materials.

[0090] Continue to refer to Figure 4 、 Figure 5 and Figures 7 to 10 As shown, in some embodiments, the cross-linking device includes at least two cross-cutting assemblies 21 arranged in sequence in the thickness direction of the lamination unit 3 and corresponding to the lamination unit 3 one by one. The thickness direction of the lamination unit 3 is the height direction, that is, the vertical direction. The cross-cutting assembly 21 includes a first connecting rod 211, a second connecting rod 212 and a cross-rotating shaft 213. The middle parts of the first connecting rod 211 and the second connecting rod 212 are cross-arranged and connected by the cross-rotating shaft 213; among two adjacent cross-cutting assemblies 21, the second end of the first connecting rod 211 in the previous cross-cutting assembly 21 is rotatably connected to the first end of the second connecting rod 212 in the subsequent cross-cutting assembly 21; the second end of the second connecting rod 212 in the previous cross-cutting assembly 21 is rotatably connected to the first end of the first connecting rod in the subsequent cross-cutting assembly 21.

[0091] Further, the cross-rotating shaft 213 is fixedly mounted on the corresponding lamination unit 3, and the cross-rotating shaft 213 drives the lamination unit 3 to rise or fall.

[0092] In one implementation, at least two sets of cross-cutting assemblies 21 can be arranged in the length direction of the lamination unit 3. At least two cross-rotating shafts 213 located on the same horizontal plane in the two sets of cross-cutting assemblies 21 form a support plane for supporting the lamination unit 3. When at least one cross-cutting assembly 21 is driven by a driving device, all the lamination units 3 connected to the cross-rotating shafts 213 will synchronously move closer to or away from each other vertically; and / or, the first connecting rod 211 and the second connecting rod 212 are slidably connected to the corresponding lamination unit 3 at the same height. Specifically, the same height refers to the same horizontal plane in the thickness direction of the lamination unit 3. The first connecting rod 211 and the second connecting rod 212 can be slidably connected to the lamination unit 3 at their ends, or any position between any one end of the first connecting rod 211 and the second connecting rod 212 and the cross-rotating shaft 213 can be slidably connected to the lamination unit 3; further, the first connecting rod 211 and the second connecting rod 212 can be slidably connected to the lamination unit 3 through sliders and slide rails, or can also be rollingly connected to the slide rails through rollers.

[0093] In some embodiments, the first connecting rod 211 and the second connecting rod 212 have the same length; the center point of the first connecting rod 211 and the center point of the second connecting rod 212 are rotationally matched through the cross-rotating shaft 213. It should be understood that after multiple cross-cutting assemblies 21 are connected in sequence, at least one deformable rhombus space will be formed by half of the structure of a pair of parallel first connecting rods 211 and half of the structure of a pair of parallel second connecting rods 212. At this time, the distance between every two adjacent lamination units 3 is the same.

[0094] This setting can achieve that when the first connecting rod 211 and the second connecting rod 212 rotate a certain angle around the cross-rotating shaft 213, all the lamination units 3 can move synchronously in their thickness directions. Furthermore, it can ensure that all the lamination units 3 can be closed at the same time, or at any time, all the lamination units 3 can maintain the same distance. Thus, it further ensures that the photovoltaic modules 6 on all the lamination units 3 in the same laminator are heated for the same time, ensures that the deformation degrees of all the photovoltaic modules 6 tend to be consistent, reduces the damage rate of the battery wafers during the lamination process, and at the same time can also ensure that the melting degrees of the encapsulant films in all the photovoltaic modules 6 tend to be consistent, making the lamination of the photovoltaic modules 6 in each lamination chamber more uniform, reducing the process adjustment difficulty of the photovoltaic modules 6. At the same time, since this way of synchronously opening or closing all the lamination chambers does not need to take care of individual photovoltaic modules 6 with too long heating time, it can also further improve the production efficiency and applicability of the entire laminator.

[0095] In some further embodiments, the cross-linking device further includes two end connection components with the same structure. The two end connection components are respectively arranged at both ends of the cross-cutting assembly 21 in the thickness direction of the lamination unit 3. The end connection component includes a third connecting rod 214, a fourth connecting rod 215 and a locking rotating shaft 216. The lengths of the third connecting rod 214 and the fourth connecting rod 215 are the same. Specifically, the lengths of both the third connecting rod 214 and the fourth connecting rod 215 are half of the lengths of both the first connecting rod 211 and the second connecting rod 212.

[0096] Further, the first end of the third connecting rod 214 is rotatably connected to the first end of the fourth connecting rod 215 through the locking rotating shaft 216; the second end of the third connecting rod 214 is hinged to the first end or the second end of the first connecting rod 211 of the adjacent cross-cutting assembly 21, and the second end of the fourth connecting rod 215 is hinged to the first end or the second end of the second connecting rod 212 of the adjacent cross-cutting assembly 21. At this time, multiple cross-cutting assemblies 21 are connected in sequence. After the cross-cutting assemblies 21 at both ends are respectively connected to the two end connection components, at least one deformable rhombus space will be formed by surrounding half of the structures of a pair of parallel first connecting rods 211 and half of the structures of a pair of parallel second connecting rods 212. At the same time, half of the structure of the first connecting rod 211 at the end of the cross-cutting assembly 21 can form a deformable rhombus space by surrounding the half of the structure of the second connecting rod 212 and the third connecting rod 214 and the fourth connecting rod 215.

[0097] The locking rotating shaft 216 of the upper end connection component can be fixedly installed on the frame 1. A support plate 4 is arranged below the lowermost lamination unit 3, and the locking rotating shaft 216 of the lower end connection component is fixedly installed on the support plate 4; when the lamination cavity between the lamination units 3 is closed, the support plate 4 also approaches the lamination unit 3 above it, and a lower sealing cavity is formed at the approaching position. When the lamination cavity is evacuated, the support plate 4 can prevent the atmospheric pressure from directly acting on the lowermost lamination unit 3, causing the lamination unit 3 to deform.

[0098] Further, the driving device can be connected to the support plate 4. When the driving device lifts the support plate 4 upward, the support plate 4 can lift the lowermost lamination unit 3 upward. The lowermost lamination unit 3 will drive the cross-cutting assembly 21 to start contracting upward, and then the cross-cutting assembly 21 will drive all the lamination units 3 to move upward synchronously.

[0099] When the upper locking rotating shaft 216 is fixed on the frame 1, all the lamination units 3 are equivalent to being hoisted on the frame 1. Cooperating with the support plate 4 that supports the lamination unit 3 below, all the lamination units 3 can stably complete the actions of approaching or separating from each other between the frame 1 and the support plate 4.

[0100] In some embodiments, all the first connecting rods 211 are located in the first plane, and all the second connecting rods 212 are located in the second plane. The first plane and the second plane are staggered in the extending direction of the cross shaft 213. At this time, the first connecting rod 211 and the second connecting rod 212 only occupy the space of two connecting rod thicknesses in the axial direction of the cross shaft 213, thus avoiding excessive space occupied by the cross shear assembly 21 on the circumferential side of the lamination unit 3 and affecting the layout of the entire laminator.

[0101] Furthermore, the two ends of the first connecting rod 211 and the second connecting rod 212 can be processed into sheet-like structures with a thickness of only half of the thickness of their main bodies. The two sheet-like structures are connected by inserting the cross shaft 213 and achieve rotational cooperation. Specifically, at the connection of the two sheet-like structures, the sheet-like structures on the first connecting rod 211 and the second connecting rod 212 are staggered, so that the first plane and the second plane can coincide, and further the entire cross shear assembly 21 only occupies the space of one connecting rod thickness in the axial direction of the cross shaft 213.

[0102] In some embodiments, the driving device is directly or indirectly connected to the cross shear assembly 21, and the driving device drives the cross shear assembly 21 to contract or extend, so as to realize the synchronous mutual approach or mutual separation of the upper and lower parts of each lamination unit 3; that is to say, the driving device can be directly connected to one or more of the first connecting rod 211, the second connecting rod 212, the third connecting rod 214 or the fourth connecting rod 215 in the cross shear assembly 21, and the driving device can also be directly connected to the cross shaft 213 or the locking shaft 216 in the cross shear assembly 21; it should be understood that the driving device can also be connected to one of the lamination units 3 or to the support plate 4, so as to drive the support plate 4 or the lamination unit 3 to move in the thickness direction of the lamination unit 3, drive the cross shear assembly 21 to contract or extend, and then drive the upper and lower parts of each lamination unit 3 connected to the cross shear assembly 21 to synchronously approach or separate from each other.

[0103] Continue to refer to Figure 7As shown, in some embodiments, there are at least two cross-linking devices. The at least two cross-linking devices are arranged at intervals on the same side of each lamination unit 3. Such an arrangement can disperse the stress at the connection between each lamination unit 3 and the cross-linking device through the at least two cross-linking devices. At the same time, a stable support plane can also be formed for each lamination unit 3 through the at least two cross-linking devices, thereby improving the support stability of the cross-linking device for the lamination unit 3; and / or, the at least two cross-linking devices are respectively arranged on both sides in the width direction of each lamination unit 3. Such an arrangement can not only disperse the stress at the connection between the cross-linking device and each lamination unit 3, but also form symmetric support points on both sides of the lamination unit 3. Further, two cross-linking devices can be arranged at intervals along the length direction of the lamination unit 3 on one side of the lamination unit 3, and the other two cross-linking devices are symmetrically arranged on the other side of the lamination unit 3 in the width direction, so as to form a stable and reliable support surface for each lamination unit 3 through the four cross-linking devices.

[0104] Of course, according to the different lengths of the lamination unit 3, the number of cross-linking devices can be set to 3, 4, 5... 10 or more, and these cross-linking devices are all arranged at intervals on the same side of each lamination unit 3. In one implementation, in order to ensure the smoothness of driving and transmission, 3, 4, 5... 10 or more cross-linking devices can also be symmetrically arranged on the other side in the width direction of the lamination unit 3.

[0105] Continue to refer to Figure 1 and Figure 3 As shown, in some embodiments, a guide rail 11 extending in the vertical direction is provided on the frame 1, and a sliding block slidably engaged with the guide rail 11 is provided on the lamination unit 3. Specifically, the lamination unit 3 can be slidably engaged with the guide rail 11 through the sliding block, or can be in rolling engagement with the guide rail 11 through a roller structure.

[0106] Continue to refer to Figure 1 、 Figure 2 and Figures 4 to 7 As shown, in some embodiments, the lamination unit 3 can be in rolling engagement with the guide rail 11 through a guide wheel 32, so as to reduce the friction between the lamination unit 3 and the guide rail 11. The guide wheel 32 can be specifically arranged on the lamination unit 3, and a plurality of guide wheels 32 can also be arranged on the guide rail 11 along its extending direction. Among them, a guide groove opened along its circumferential direction can be provided on the circumferential side of the guide wheel 32, and the guide groove can be used for limiting the position of the guide rail 11 or the side of the lamination unit 3 in the axial direction of the guide wheel 32.

[0107] Further, the number of the guide rails 11 can be two. The two guide rails 11 are arranged at both ends of the lamination unit 3 in the length direction of the lamination unit 3 along the length direction of the lamination unit 3, and the two guide rails 11 are arranged at both ends of the lamination unit 3 in the width direction of the lamination unit 3 along the width direction of the lamination unit 3. Two guide wheels 32 are arranged on the lamination unit 3, and the two guide wheels 32 are arranged between the two guide rails 11. Such an arrangement can limit the lamination unit 3 in its length direction or width direction through the guide rails 11, thereby improving the stability of the lamination unit 3 when moving in its thickness direction.

[0108] In some other embodiments, the lamination unit 3 can be slidably engaged with the guide rail 11 through a slider sleeved on the guide rail 11, and it can form a limit in any direction other than the extending direction of the guide rail 11 between the lamination unit 3 and the guide rail 11, thereby further ensuring that the lamination unit 3 will always move along the extending direction of the guide rail 11.

[0109] Through the arrangement of the guide rail 11, the supporting points for the lamination unit 3 can also be increased, and the stability and reliability of the lamination unit 3 when moving can be improved.

[0110] Further, the guide rail 11 extends along the thickness direction of the lamination unit 3, so as to ensure that the lamination unit 3 will not be misaligned in the thickness direction when moving, and all the lamination units 3 always maintain vertical movement, thereby effectively reducing the occupied space of the entire laminator.

[0111] Continue to refer to Figure 12 As shown, in some embodiments, Figure 12 The direction of the arrow in the figure is the conveying direction of the photovoltaic module 6. The laminator further includes a loading conveyor line 51 and a lifter 52. The conveying height of the loading conveyor line 51 is aligned with the position height of the intermediate layer of the multi-layer lamination unit 3 in the thickness direction. The lifter 52 is located between the loading conveyor line 51 and the lamination unit 3 and is used to transfer the photovoltaic module 6 on the loading conveyor line 51 to one of the lamination units 3.

[0112] In one implementation, the laminator further includes a storage area. The storage area is arranged between the lifter 52 and the lamination unit 3. The storage area includes multiple layers of storage racks, and each layer of storage rack corresponds to one layer of the lamination unit 3. The lifter 52 is used to transfer the photovoltaic module 6 on the loading conveyor line 51 to the multiple layers of storage racks, and the multiple layers of storage racks simultaneously convey the stored photovoltaic modules 6 to the corresponding lamination unit 3.

[0113] In one implementation, the multi-layer storage rack includes a frame body, and a plurality of conveying devices are arranged in the frame body from top to bottom in sequence. Each conveying device corresponds to a lamination unit 3. The conveying device includes a conveyor belt and a conveyor belt driving device. The conveyor belt is used to carry and convey the photovoltaic module 6, and the driving device is used to drive the conveyor belt to rotate.

[0114] Through the setting of the storage area, the advance caching and overall feeding of the photovoltaic module 6 are realized, avoiding the situation that the photovoltaic modules 6 in different lamination units 3 are heated inconsistently when feeding the lamination unit 3 individually.

[0115] Specifically, the feeding work of the laminator can be carried out through the following steps:

[0116] S1. Adjust both the feeding conveyor line 51 and the elevator 52 to the position of the middle layer of the multi-layer lamination unit 3 in the first direction; if the number of lamination units 3 is odd, the feeding conveyor line 51 and the elevator 52 are flush with the middle layer; if the number of lamination units 3 is even, the feeding conveyor line 51 and the elevator 52 are aligned with the middle position between the two middle layers;

[0117] S2. The elevator 52 sequentially or randomly transfers the photovoltaic modules 6 on the feeding conveyor line 51 to the storage rack with an idle storage area;

[0118] S3. The storage rack simultaneously conveys the stored photovoltaic modules 6 to their respective corresponding lamination units 3; it should be noted that the elevator 52 can also be used to directly transfer the photovoltaic modules 6 on the feeding conveyor line 51 to the lamination unit 3.

[0119] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0120] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0121] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A laminator, characterized in that, The laminator includes: a frame, a cross-linking device, a lamination unit, and a driving device; A plurality of the lamination units are arranged in the thickness direction thereof, and the cross-linking device is in transmission connection with each of the lamination units; The cross-linking device is directly connected to the frame, or the cross-linking device is indirectly connected to the frame through one of the lamination units, The driving device is in transmission connection with the cross-linking device, and the driving device drives each of the lamination units to move synchronously closer to or away from each other up and down through the cross-linking device.

2. The laminator according to claim 1, characterized in that, The cross-linking device includes a first transmission arm, a second transmission arm, and a connecting shaft; The first transmission arm and the second transmission arm are located on the same side of each of the lamination units and both span the uppermost lamination unit and the lowermost lamination unit; The first transmission arm and the second transmission arm are arranged in a cross-symmetrical manner and are connected by the connecting shaft at the cross position; The first end of the first transmission arm and / or the first end of the second transmission arm are slidably connected to the frame; At least one of the first transmission arm and the second transmission arm is connected to the driving device; Each of the lamination units located above and below the connecting shaft is simultaneously slidably connected to both the first transmission arm and the second transmission arm.

3. The laminator according to claim 2, wherein, Two laterally spaced slideways with the same length are provided on each of the lamination units located above and below the connecting shaft, and the first transmission arm and the second transmission arm are respectively connected to the corresponding slideways of one lamination unit through a slider or a roller.

4. The laminator according to claim 3, characterized in that, The length of the slideway on the lamination unit far from the connecting shaft is greater than the length of the slideway on the lamination unit close to the connecting shaft.

5. The laminator according to claim 2, characterized in that, The number of the lamination units is 2n, the lamination units located above and below the connecting shaft are both n, and the lamination units located above and below the connecting shaft are symmetrically arranged, and the connecting shaft is fixedly installed on the frame; Or, The number of the lamination units is 2n + 1, the connecting shaft is fixedly installed on the middle lamination unit or fixedly installed on the frame, the lamination units located above and below the connecting shaft are both n, and the lamination units located above and below the connecting shaft are symmetrically arranged.

6. The laminator according to any one of claims 2-5, characterized in that, A support plate is provided below the lowermost lamination unit, and the second ends of the first transmission arm and the second transmission arm are slidably installed on the support plate.

7. The laminator according to claim 1, wherein The cross-linking device includes at least two cross-cutting assemblies corresponding to the lamination units and arranged in sequence in the thickness direction of the lamination units, The cross-cutting assembly includes a first connecting rod, a second connecting rod, and a cross-rotating shaft. The middle parts of the first connecting rod and the second connecting rod are cross-arranged and are connected by the cross-rotating shaft; among two adjacent cross-cutting assemblies, the second end of the first connecting rod in the previous cross-cutting assembly is rotatably connected to the first end of the second connecting rod in the next cross-cutting assembly; the second end of the second connecting rod in the previous cross-cutting assembly is rotatably connected to the first end of the first connecting rod in the next cross-cutting assembly; The cross shaft is fixedly installed on the corresponding lamination unit, and the cross shaft drives the lamination unit to rise or fall; and / or, the first connecting rod and the second connecting rod are slidably connected to the corresponding lamination unit at the same height.

8. The laminator according to claim 7, characterized in that, The first connecting rod and the second connecting rod have the same length; The center point of the first connecting rod and the center point of the second connecting rod are rotationally matched through the cross shaft.

9. The laminator according to claim 7, wherein, The cross-linking device further includes two end connection components with the same structure. The end connection component includes a third connecting rod, a fourth connecting rod, and a locking shaft. The third connecting rod and the fourth connecting rod have the same length; The first end of the third connecting rod and the first end of the fourth connecting rod are rotationally connected through the locking shaft; The second end of the third connecting rod is hinged to the first end or the second end of the first connecting rod of the adjacent cross-cutting assembly, and the second end of the fourth connecting rod is hinged to the first end or the second end of the second connecting rod of the adjacent cross-cutting assembly; The locking shaft of the upper end connection component is fixedly installed on the frame, a support plate is arranged below the lamination unit of the lowermost layer, and the locking shaft of the lower end connection component is fixedly installed on the support plate.

10. The laminator according to claim 7, characterized in that, All the first connecting rods are located in a first plane, all the second connecting rods are located in a second plane, and the first plane and the second plane are staggered in the extending direction of the cross shaft.

11. The laminator according to any one of claims 7-10, characterized in that, The driving device is directly or indirectly connected to the cross-cutting assembly, and the driving device drives the cross-cutting assembly to contract or extend, so as to realize that each lamination unit moves synchronously closer or farther away from each other up and down.

12. The laminator according to claim 1, wherein, At least two cross-linking devices are provided, and at least two cross-linking devices are arranged at intervals on the same side of each lamination unit, and / or at least two cross-linking devices are respectively arranged on both sides in the width direction of each lamination unit.

13. The laminator according to claim 1, wherein, A guide rail extending in the vertical direction is provided on the frame, and a sliding block slidably matched with the guide rail is provided on the lamination unit.

14. The laminator according to claim 1, wherein, The laminator further includes a loading conveyor and a lifter. The conveying height of the loading conveyor is aligned with the position height of the intermediate layer of the multiple lamination units in the thickness direction. The lifter is located between the loading conveyor and the lamination unit and is used to transfer the photovoltaic module on the loading conveyor to one of the lamination units.

15. The laminator according to claim 14, characterized in that, The laminator further includes a storage area, and the storage area is arranged between the lifter and the lamination unit; The storage area includes multiple layers of storage racks, and each layer of storage rack is arranged corresponding to one layer of the lamination unit; The lifter is used to transfer the photovoltaic module on the loading conveyor to the multiple layers of storage racks, and the multiple layers of storage racks simultaneously convey the stored photovoltaic modules to the corresponding lamination unit.

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