Photovoltaic module laminating machine and rubber plate fixing device used by same

Abstract

The utility model aims to provide a photovoltaic module laminating machine and a rubber plate fixing device used by the photovoltaic module laminating machine in order to overcome the defects of low efficiency and large workload during rubber plate replacement of a photovoltaic module laminating machine in the prior art, and the rubber plate fixing device used by the photovoltaic module laminating machine comprises an electromagnet, a suction plate and an electromagnetic on-off device, the photovoltaic module laminating machine comprises at least one upper box, each upper box comprises an upper box body, a rubber plate and a rubber plate fixing device, a rectangular upper pressing frame is arranged below the upper box body, the upper pressing frame is provided with an electromagnetic on-off device, the electromagnetic on-off device is used for controlling the electromagnet to get magnetism and lose magnetism, and the electromagnet and the suction plate are oppositely arranged. According to the photovoltaic module laminating machine and the rubber plate fixing device used by the photovoltaic module laminating machine, the automation of fixing the rubber plate by the upper pressing frame and the lower pressing frame can be realized, and a worker does not need to enter the equipment to carry out maintenance operation, so that the photovoltaic module laminating machine is very convenient and rapid.

Description

Technical Field

[0001] This utility model belongs to the technical field of photovoltaic module lamination equipment, and specifically relates to a photovoltaic module laminator and the adhesive sheet fixing device used thereon. Background Technology

[0002] Photovoltaic module laminators, also known as solar cell laminators, are... Figure 1 As shown, the upper chamber of the sheet-type laminator includes an upper chamber body 2, an upper pressure frame 5, a lower pressure frame 3, and a sheet 4. The upper pressure frame is fixedly located below the upper chamber body, and the sheet is sandwiched between the upper and lower pressure frames. The sheet, the upper chamber body, and the upper pressure frame constitute the upper chamber of the laminator. As an elastic lamination component, the sheet expands and applies pressure to the photovoltaic modules when gas is filled into the upper chamber. To ensure the sheet is securely fixed, a quick clamp 9 is used to fix the lower pressure frame below the upper pressure frame, thus clamping the sheet between the upper and lower pressure frames. The quick clamp's base is fixed to the upper chamber, and its hook 12 is fixed to the lower pressure frame. After the hanging ring 11 is hooked onto the hook, it needs to be locked with a locking nut 10. When the sheet needs to be replaced, the locking nut needs to be removed, and the hook and hanging ring need to be detached. Because the distance between the two chambers of the multi-chamber laminator is very small, it is difficult for maintenance workers to enter this narrow space, and there is almost no operating space, making installation particularly difficult. Especially in new multi-layer, multi-cavity laminators with newer structures, the space between the two cavities is even narrower, making it virtually impossible for personnel to enter. Operating from outside the laminator is also hampered by its width, making it impossible to manipulate the quick-clamps located in the middle between the cavities, thus preventing the removal and installation of the laminator sheets. Besides the limited operating space and inconvenient assembly / disassembly, another problem arises because the laminator requires air inflation and vacuuming during lamination, necessitating excellent sealing. Therefore, the laminator sheets must be tightly clamped between the upper and lower pressure frames, requiring a large number of quick-clamps and numerous nuts to be removed and installed. This results in a significant workload and time commitment when changing laminator sheets, reducing efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing photovoltaic module laminators, such as low efficiency and high workload when changing adhesive sheets, by providing a photovoltaic module laminator and an adhesive sheet fixing device.

[0004] The technical solution to the technical problem solved by this utility model is as follows:

[0005] A glue plate fixing device for a photovoltaic module laminator includes an electromagnet, a suction plate, and an electromagnetic switching device. The electromagnet is electrically connected to the electromagnetic switching device, and the electromagnetic switching device controls the electromagnet to become magnetic and demagnetize. The electromagnet and the suction plate are arranged opposite to each other.

[0006] It also includes an electromagnet mounting base, which is L-shaped, with the electromagnet located below one side of the electromagnet mounting base, and the other side of the electromagnet mounting base used for fixed connection with the laminator.

[0007] An electromagnet mounting bracket is fixedly installed on the outer surface of the side of the electromagnet mounting base that is fixedly connected to the laminator. The electromagnet mounting base is connected to the laminator through the electromagnet mounting bracket.

[0008] A photovoltaic module laminator includes at least one upper box. Each upper box includes an upper box body, a glue plate, and a glue plate fixing device. A rectangular upper pressing frame is provided below the upper box body, and a rectangular lower pressing frame is provided below the upper pressing frame. The glue plate is located between the upper pressing frame and the lower pressing frame, and is sandwiched between the upper pressing frame and the lower pressing frame. The glue plate fixing device fixes the upper pressing frame and the lower pressing frame together, thereby clamping and fixing the glue plate between the upper pressing frame and the lower pressing frame, and fixing the lower pressing frame and the glue plate to the upper box. The glue plate fixing device of the upper pressing frame and the lower pressing frame at least at the short side of the laminator adopts the above structure. The electromagnet is fixedly connected to the upper box body or the upper pressing frame, and the suction plate is fixedly connected to the lower pressing frame.

[0009] It also includes a rubber sheet tensioning device. Each of the rubber sheet tensioning devices includes a rubber sheet tensioning plate, a rubber sheet pressure plate, and a screw. The rubber sheet tensioning plate and the rubber sheet are stacked. At least two rubber sheet tensioning devices are provided on each of the four peripheries of the rubber sheet, located at both ends on the same side of the rubber sheet. The edge of the rubber sheet is sandwiched between the rubber sheet tensioning plate and the rubber sheet pressure plate, and the rubber sheet is fixed between the two by bolts. A threaded hole is provided on the surface of the rubber sheet tensioning plate perpendicular to the end of the rubber sheet. A connecting plate is provided on the upper box body or the upper pressure frame. A through hole is provided on the connecting plate. The shank of the screw passes through the through hole and is threadedly connected to the rubber sheet tensioning plate. The rubber sheet tensioning device is located on the outside of the upper pressure frame and the lower pressure frame.

[0010] The edges of the rubber sheet are tensioned onto the upper box by a rubber sheet tensioning device, and the periphery of the rubber sheet surrounds the outside of the lower pressure frame.

[0011] The laminator is a multi-stage laminator, consisting of a hot pressing stage and a cooling stage, which are spaced apart. The hot pressing stage and the cooling stage each include the upper chamber. The hot pressing stage is used to laminate and cure the photovoltaic module, and the cooling stage is used to cool the photovoltaic module after hot pressing and curing.

[0012] The hot pressing section includes a first hot pressing section and a second hot pressing section. The first hot pressing section, the second hot pressing section, and the cooling section are arranged sequentially and alternately. The first hot pressing section is used to apply pressure to the photovoltaic module, the second hot pressing section is used to cure the laminated photovoltaic module, and the cooling section is used to cool the laminated and cured photovoltaic module.

[0013] The photovoltaic module laminator is a multi-layer, multi-segment laminator, with the hot pressing segment and the cooling segment each comprising at least two layers, and each layer comprising an upper chamber.

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

[0015] The photovoltaic module laminator and the adhesive plate fixing device using the structure of this utility model use electromagnets and suction plates as fixing elements. Simply align the upper and lower pressure frames and energize the electromagnets to attract and fix the upper and lower pressure frames together. This can realize the automation of fixing the adhesive plates of the upper and lower pressure frames, eliminating the need for manual entry into the equipment for maintenance operations, which is very convenient and fast. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the adhesive plate fixing device used in the prior art photovoltaic module laminator of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the upper box of the photovoltaic module laminator in the prior art of this utility model, which shows the glue plate fixing device;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0019] Figure 4 for Figure 3 A side view diagram;

[0020] Figure 5 This is a schematic diagram of the upper box structure of an embodiment of the structural laminator of this utility model;

[0021] Figure 6 for Figure 5 A side view diagram;

[0022] Figure 7 This is a schematic diagram of an embodiment of the photovoltaic module laminator of this utility model, which includes a glue sheet tensioning device;

[0023] Figure 8 This is a schematic diagram of an embodiment of the rubber sheet tensioning device;

[0024] Figure 9 This is a schematic diagram of the arrangement and structure of the various sections of the existing multi-cavity multi-layer laminator of this utility model.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Heating plate 2-Box body 3-Lower pressure frame 4-Glue plate 5-Upper pressure frame

[0027] 6-Electromagnetic mounting base 7-Electromagnet 8-Suction plate 9-Quick clamp 10-Locking nut 11-Hook 12-Hanging ring 13-Electromagnetic mounting base bracket 14-Tensioning screw 15-Glue plate pressure plate 16-Glue plate tensioning plate

[0028] 20-Hot pressing section 1; 21-Hot pressing section 2; 22-Cold pressing section Detailed Implementation

[0029] The present invention will be further described in detail below through specific embodiments. These embodiments are merely descriptive and not limiting, and should not be construed as limiting the scope of protection of the present invention. In this patent application, the long side refers to the side parallel to the running direction of the photovoltaic module laminator. Because this side is relatively long, it is called the long side. The side perpendicular to the running direction of the photovoltaic module is relatively short and is therefore called the short side. The two sides of the laminator parallel to the running direction of the photovoltaic module are called the front and rear ends, and the two sides parallel to the running direction of the photovoltaic module are called the left and right sides.

[0030] like Figures 2-9 As shown, the photovoltaic module laminator of this utility model embodiment includes at least one upper box. Each upper box includes an upper box body 2. A rectangular upper pressing frame 5 is fixedly arranged below the upper box body. A rectangular lower pressing frame 3 is arranged below the upper pressing frame 5. A rectangular adhesive plate 4 is arranged between the upper pressing frame and the lower pressing frame. The adhesive plate is clamped and fixed between the upper pressing frame and the lower pressing frame. The upper pressing frame and the lower pressing frame are fixedly connected together and the adhesive plate is clamped and fixed by the adhesive plate fixing device.

[0031] The preferred structure of the adhesive sheet fixing device includes an electromagnet 7, a suction plate 8, and an electromagnetic switching device. The electromagnet and the electromagnetic switching device are electrically connected, and the electromagnetic switching device controls the magnetization and demagnetization of the electromagnet. The electromagnet 7 and the suction plate 8 are arranged in pairs, with one fixed on the upper pressure frame and the other on the lower pressure frame. For example, since the volume of the electromagnet is generally larger than that of the suction plate, it is usually fixed on the outer side of the upper pressure frame and / or the upper box body. The suction plate is usually fixed on the outer side of the lower pressure frame. The electromagnet is usually fixedly connected to the upper pressure frame and / or the upper box body through an electromagnetic mounting base 6. The structure of the electromagnetic mounting base that is most conducive to the installation of the electromagnet is a right-angle bend, with one right-angle side fixedly connected to the upper box and / or the upper pressure frame, and the electromagnet fixedly installed below the other right-angle side. Under normal circumstances, the edge of the adhesive sheet will be exposed outside the upper and lower pressure frames and flipped upward. Therefore, there is a certain distance between the side surface of the electromagnet and the outer surface of the upper pressure frame, which is greater than or equal to the thickness of the adhesive sheet. The suction plate is fixed to the outer surface of the lower pressure frame with bolts, or it can be fixed by welding or bonding. Its cantilever extends out of the lower pressure frame, and its length matches the length of the electromagnet. The heights of the two are also matched. When fixing the glue plate, the two are positioned opposite each other and can be attracted together. The glue plate fixing device with the above structure is simply referred to as an electromagnetic glue plate fixing device. Preferably, an electromagnetic mounting bracket 13 is provided on the side of the electromagnetic mounting base that is connected to the upper box body or the upper pressure frame. The electromagnetic mounting base is fixedly connected to the upper pressure frame or the upper box body through the electromagnetic mounting bracket. By setting the electromagnetic mounting bracket, a relatively long distance is provided between the electromagnetic mounting base and the outer surface of the upper box body or the upper pressure frame, leaving more space for the glue plate to be folded upwards for installation.

[0032] The photovoltaic module laminator of this utility model uses the above-mentioned electromagnetic glue plate fixing device on at least its short sides, that is, the upper and lower pressure frames perpendicular to the running direction, while the long sides use the existing mechanical glue plate fixing device, such as the quick clamp fixing device. Alternatively, the above-mentioned electromagnetic glue plate fixing device can be used on all four sides. When the present invention is a multi-cavity laminator, for example including a hot pressing section 20, a hot pressing section 21, and a cold pressing section 22, the upper chamber structures of the hot pressing section 1, hot pressing section 21, and hot pressing section 3 are basically the same, all using the aforementioned upper chamber structure. Each upper chamber includes an upper chamber body, and an upper pressure frame and a lower pressure frame are provided on the upper chamber body. The adhesive sheet is located between the upper pressure frame and the lower pressure frame, and its periphery is fixed between the upper pressure frame and the lower pressure frame by a clamping and fixing device. The device for fixing and clamping the upper pressure frame and the lower pressure frame is an adhesive sheet fixing device. At least the adhesive sheet fixing devices provided on the two short sides of the upper pressure frame and the lower pressure frame of the hot pressing section 2, as well as on the short sides of the upper pressure frame and the lower pressure frame adjacent to the hot pressing section 1 and the cold pressing section, adopt the aforementioned electromagnetic adhesive sheet fixing device. The hot pressing section 1 is used to apply pressure to the photovoltaic module, the hot pressing section 2 is used to cure the photovoltaic module, and the cooling section is used to cool the photovoltaic module. The hot pressing section 1, the hot pressing section 2, and the cooling section are arranged at intervals. The best, and relatively most economical and convenient structure is one where the adhesive sheet fixing devices on the two short sides use electromagnetic adhesive sheet fixing devices, and the adhesive sheet fixing devices on the two long sides use mechanical fixing devices such as quick clamps. This ensures reliable fixing of the adhesive sheets and facilitates easy assembly and disassembly while saving on laminator manufacturing costs. More than two adhesive sheet fixing devices can be installed along the upper and lower pressure frames on each side. Alternatively, only one hot pressing section can be installed, where lamination and curing are completed. The structure of this patent application is more suitable for multi-layer, multi-segment laminators, where each segment laminator includes at least two upper chambers stacked vertically. For example, it may include a hot pressing section and a cooling section, each of which includes at least two upper chambers stacked vertically. The upper chambers are positioned directly above and below each other.

[0033] Preferably, a rubber sheet tensioning device is also provided, which pre-tensions the rubber sheet to fix it to the upper box body, improving the tension of the rubber sheet and preventing the installed rubber sheet from sag. This also allows for adjustment of the rubber sheet tension and provides convenient conditions for the rubber sheet fixing device to secure the rubber sheet. Figure 7 and Figure 8As shown, the rubber sheet tensioning device of this embodiment includes a tensioning screw 14, a rubber sheet pressure plate 15, and a rubber sheet tensioning plate 16. The rubber sheet pressure plate 15 and the rubber sheet tensioning plate 16 are of approximately equal length and are stacked. The edge of the rubber sheet 4 is clamped between the rubber sheet pressure plate and the rubber sheet tensioning plate. The rubber sheet pressure plate and the rubber sheet tensioning plate are fixedly connected by bolts. A corresponding through hole is provided at the clamped part of the rubber sheet for the bolt to pass through. Taking the position of the rubber sheet when it is laid flat as the description position, a threaded hole is provided on the side surface of the rubber sheet tensioning plate perpendicular to the end face of the clamped rubber sheet. The length direction of the threaded hole is parallel to the clamped rubber sheet, and the tensioning screw is threadedly connected to the threaded hole. During installation, the tensioning screw passes through the through hole provided on the connecting plate provided on the side of the upper box body, thereby fixing the rubber sheet tensioning device on the side surface of the upper box body. The rubber sheet tensioning device is located above the upper pressure frame, generally parallel to it. The connecting plate is located above the rubber sheet tensioning plate. Connecting plates and rubber sheet tensioning devices are installed at the front and rear ends and / or left and right sides of the upper chamber body. In this way, the four sides or two opposite edges of the rubber sheet can be pre-fixed to the upper chamber body by the rubber sheet tensioning device, and the edges of the rubber sheet are flipped upwards to surround the upper pressure frame or upper chamber body. When the tension of the rubber sheet needs to be adjusted, the tensioning screws are adjusted to adjust the distance between the connecting plate and the rubber sheet tensioning plate. Preferably, in a multi-cavity laminator, especially a multi-layer multi-cavity laminator, the connecting plate is positioned near the left and right sides of the short side, and tension is applied only to the parts of the rubber sheet near the two ends. Due to the thickness and hardness of the rubber sheet, the edges are folded upwards, and the diagonal plates at the four corners of the rubber sheet are tensioned, pulling the rubber sheet tight. Personnel can tension the rubber sheet onto the upper chamber body without entering between two adjacent cavities.

[0034] When replacing the rubber sheet, first remove the lower pressure frame, then lower the upper chamber. Remove the tightening screws to allow the rubber sheet to fall. After raising the upper chamber, move the old rubber sheet to the laminator. Lay the new rubber sheet, equipped with rubber sheet tensioning plates and pressure plates on both sides, flat on the worktable below the upper chamber body. At this point, the edges of the rubber sheet are clamped and fixed by the tensioning and pressure plates. Align the four sides of the rubber sheet with the four sides of the upper pressure frame, ensuring the tensioning and pressure plates are outside the upper pressure frame and protrude a certain distance beyond its edges. Fold the rubber sheet protruding from the upper pressure frame upwards. Insert the tensioning screws into the through holes on the connecting plate and thread them into the threaded holes on the tensioning plate to tension and pre-fix the rubber sheet to the upper chamber. Then raise the upper chamber, align the lower pressure frame with the upper pressure frame, and use the rubber sheet fixing device to secure the upper and lower pressure frames together, further securing the rubber sheet. This type of sheet tensioning device can easily tension and fix the sheet to the upper chamber, which is especially advantageous when the laminator has multiple cavities, for tensioning and fixing the sheet between the two cavities.

[0035] The combination of the rubber sheet fixing device and the rubber sheet tensioning device using the structure of this invention can eliminate the inconvenience of operators entering the equipment for installation, making the installation and removal of the rubber sheet convenient and quick.

Claims

1. A glue plate fixing device used in a photovoltaic module laminator, characterized in that: It includes an electromagnet, a suction plate, and an electromagnetic switching device. The electromagnet is electrically connected to the electromagnetic switching device, and the electromagnetic switching device controls the electromagnet to become magnetized and demagnetized. The electromagnet and the suction plate are arranged opposite to each other. It also includes an electromagnet mounting base, which is L-shaped. The electromagnet is located below one side of the electromagnet mounting base, and the other side of the electromagnet mounting base is used for fixed connection with a laminator.

2. The adhesive plate fixing device for a photovoltaic module laminator as described in claim 1, characterized in that: An electromagnet mounting bracket is fixedly installed on the outer surface of the side of the electromagnet mounting base that is fixedly connected to the laminator. The electromagnet mounting base is connected to the laminator through the electromagnet mounting bracket.

3. A photovoltaic module laminator, comprising at least one upper box, each upper box including an upper box body, an adhesive sheet, and an adhesive sheet fixing device, a rectangular upper pressing frame disposed below the upper box body, a rectangular lower pressing frame disposed below the upper pressing frame, the adhesive sheet being located between the upper pressing frame and the lower pressing frame, and sandwiched between the upper pressing frame and the lower pressing frame by the adhesive sheet fixing device, wherein the upper pressing frame and the lower pressing frame are fixedly connected together, thereby clamping and fixing the adhesive sheet between the upper pressing frame and the lower pressing frame, and fixing the lower pressing frame and the adhesive sheet to the upper box, characterized in that, At least the glue plate fixing devices of the upper and lower pressure frames corresponding to the short side of the laminator adopt the glue plate fixing device used in the photovoltaic module laminator as described in any one of claims 1-2, wherein the electromagnet is fixedly connected to the upper box body or the upper pressure frame, and the suction plate is fixedly connected to the lower pressure frame.

4. The photovoltaic module laminator as described in claim 3, characterized in that, It also includes a rubber sheet tensioning device. Each of the rubber sheet tensioning devices includes a rubber sheet tensioning plate, a rubber sheet pressure plate, and screws. The rubber sheet tensioning plate and the rubber sheet are stacked. At least two rubber sheet tensioning devices are provided on each of the four perimeters of the rubber sheet, located at both ends on the same side of the rubber sheet. The edge of the rubber sheet is clamped between the rubber sheet tensioning plate and the rubber sheet pressure plate, and the rubber sheet is fixed between the two by bolts. A threaded hole is provided on the surface of the rubber sheet tensioning plate perpendicular to the end of the rubber sheet. A connecting plate is provided on the upper box body or the upper pressure frame. A through hole is provided on the connecting plate. The shank of the screw passes through the through hole and is threadedly connected to the rubber sheet tensioning plate. The rubber sheet tensioning device is located outside the upper pressure frame and the lower pressure frame.

5. A photovoltaic module laminator as described in claim 4, characterized in that, The edges of the rubber sheet are tensioned onto the upper box by a rubber sheet tensioning device, and the periphery of the rubber sheet surrounds the outside of the lower pressure frame.

6. A photovoltaic module laminator as described in claim 4, characterized in that, The laminator is a multi-stage laminator, consisting of a hot pressing stage and a cooling stage, which are spaced apart. The hot pressing stage and the cooling stage each include the upper chamber. The hot pressing stage is used to laminate and cure the photovoltaic modules, and the cooling stage is used to cool the photovoltaic modules after hot pressing and curing.

7. A photovoltaic module laminator as described in claim 6, characterized in that, The hot pressing section includes a first hot pressing section and a second hot pressing section. The first hot pressing section, the second hot pressing section, and the cooling section are arranged sequentially and alternately. The first hot pressing section is used to apply pressure to the photovoltaic module, the second hot pressing section is used to cure the laminated photovoltaic module, and the cooling section is used to cool the laminated and cured photovoltaic module.

8. A photovoltaic module laminator as described in claim 6 or 7, characterized in that, The photovoltaic module laminator is a multi-layer, multi-segment laminator, with the hot pressing segment and the cooling segment each comprising at least two layers, and each layer comprising an upper chamber.

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