Laminated structure of vacuum balance multilayer photovoltaic module

Abstract

The utility model discloses a lamination structure of a vacuum balance multilayer photovoltaic assembly, comprising a plurality of lamination units which are stacked up and down, and each lamination unit comprises a first supporting plate, a pressing plate, a rubber plate, a lower plate and a second supporting plate which are sequentially arranged from bottom to top, the first supporting plate, the pressing plate and the rubber plate are enclosed to form a closed lower cavity convenient for vacuum extraction, an upper cavity convenient for lamination is formed between the rubber plate and the lower plate, and the lower plate and the second supporting plate are connected through four connecting side plates to form a closed balance cavity; according to the utility model, by arranging the laminating unit consisting of the balance chamber, the upper chamber and the lower chamber, the pressure borne by the supporting plate and the lower plate in the laminating process is reduced, so that the laminating structure keeps good stability in the multi-layer stacking process, the condition that the laminating structure is easy to deform due to the thick structure in the laminating process is avoided, and the laminating quality is improved. And the lamination efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laminators, in particular to a lamination structure of a vacuum balanced multi-layer photovoltaic component. Background Art

[0002] At present, the laminators used in the photovoltaic industry are generally divided into two parts: an upper box and a lower box. After the upper box and the lower box are sealed and closed, the laminating chamber is separated into an upper vacuum chamber and a lower vacuum chamber that are isolated from each other by a silicone plate. During lamination, the lower vacuum chamber needs to be evacuated to remove the bubbles in the photovoltaic module, and then the upper vacuum chamber is inflated under the vacuum state of the lower vacuum chamber to expand the silicone plate and use the inflation pressure to pressurize the photovoltaic module. Since it needs to withstand a large vacuum pressure during work, thicker steel plates are generally used to avoid deformation of the steel plate. However, this will make the overall structure of the laminator thick and heavy, and the size of the components will also be large, which is not conducive to saving steel. Moreover, this laminator structure cannot be stacked too high due to its own conditions, thus limiting the number of layers that can be made at the same time during a lamination process and reducing the lamination efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a lamination structure of a vacuum-balanced multi-layer photovoltaic module, which can reduce the pressure exerted on the lamination structure during the lamination process, facilitate the stacking of the lamination structure, and thus improve the lamination efficiency.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0005] A lamination structure of a vacuum-balanced multilayer photovoltaic module comprises a plurality of lamination units designed to be stacked up and down, wherein the lamination units comprise a first support plate, a pressing plate, a glue plate, a lower plate and a second support plate arranged in sequence from bottom to top, wherein the first support plate, the pressing plate and the glue plate enclose a closed lower chamber for convenient vacuum extraction, an upper chamber for convenient lamination is formed between the glue plate and the lower plate, and the lower plate and the second support plate are connected by four connecting side plates to form a closed balancing chamber; the lamination units of the upper layer are directly mounted on the second support plate of the lower layer through the pressing plate; the photovoltaic module is mounted on the top of the first support plate of the lower chamber; one side of the balancing chamber is connected to a vacuum pump through a first vacuum tube, the top of the upper chamber is connected to the vacuum pump through a second vacuum tube, and one side of the lower chamber is connected to the vacuum pump through a third vacuum tube.

[0006] In the above-mentioned lamination structure of a vacuum-balanced multi-layer photovoltaic module, the pressing plate is arranged on the peripheral side of the first supporting plate, and a sealing strip for sealing is arranged between the pressing plate and the first supporting plate.

[0007] In the above-mentioned laminated structure of a vacuum-balanced multi-layer photovoltaic module, the bottom of the lower plate is provided with an upward groove which cooperates with the upper end surface of the rubber plate to form a cavity, and the lower plate is also provided with an air inlet connected to the second vacuum tube.

[0008] In the above-mentioned laminated structure of a vacuum-balanced multi-layer photovoltaic module, the second vacuum tube is a curved tube that runs through the balancing chamber at 90 degrees, one end of the second vacuum tube is connected to the upper chamber through the air inlet on the lower plate, and the other end of the second vacuum tube passes through the connecting side plate and is connected to the vacuum pump.

[0009] In the above-mentioned laminated structure of a vacuum-balanced multi-layer photovoltaic assembly, the third vacuum tubes are respectively arranged on the first support plate and the second support plate and are connected to the upper lower chamber.

[0010] In the above-mentioned lamination structure of a vacuum-balanced multi-layer photovoltaic module, the absolute pressure inside the balancing chamber is 50 kPa.

[0011] In the above-mentioned lamination structure of a vacuum-balanced multi-layer photovoltaic module, the absolute pressure inside the upper chamber during lamination is 101 kPa.

[0012] In the above-mentioned lamination structure of a vacuum-balanced multi-layer photovoltaic module, the absolute pressure inside the lower chamber is maintained at 40-100 Pa.

[0013] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0014] The utility model provides a lamination structure of a vacuum balanced multi-layer photovoltaic module. By setting a lamination unit composed of a balance chamber, an upper chamber, and a lower chamber, the pressure on the support plate and the lower plate during the lamination process is reduced, so that the lamination structure maintains good stability during multi-layer stacking, avoids the situation in which the stacked structure is easily deformed due to the heavy structure during the lamination process, and greatly improves the lamination efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the specific structure of the utility model.

[0016] Among them: 1. first support plate, 2. photovoltaic module, 3. pressure plate, 4. sealing strip, 5. rubber plate, 6. lower plate, 7. connecting side plate, 8. first vacuum tube, 9. second vacuum tube, 10 second support plate, 11. third vacuum tube, 12. balance chamber, 13. upper chamber, 14. lower chamber. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] A laminated structure of a vacuum balanced multilayer photovoltaic module, such as Figure 1As shown, it includes several lamination units designed to be stacked up and down, and the lamination units include a first support plate 1, a pressing plate 3, a glue plate 5, a lower plate 6 and a second support plate 10 arranged in sequence from bottom to top, and the first support plate 1, the pressing plate 3, and the glue plate 5 are enclosed to form a closed lower chamber 14 for easy vacuum extraction, the photovoltaic module 2 is installed on the top of the first support plate 1 in the lower chamber 14, and an upper chamber 13 for easy lamination is formed between the glue plate 5 and the lower plate 6, and the lower plate 6 and the second support plate 10 are connected by four connecting side plates 7 to form a closed balance chamber 12, wherein one side of the balance chamber 12 is connected to the vacuum pump through a first vacuum tube 8, the top of the upper chamber 13 is connected to the vacuum pump through a second vacuum tube 9, and one side of the lower chamber 14 is connected to the vacuum pump through a third vacuum tube 11.

[0019] The pressing plate 3 is arranged on the peripheral side of the first supporting plate 1 , and a sealing strip 4 is arranged between the pressing plate 3 and the first supporting plate 1 to ensure the airtightness of the lower chamber 14 .

[0020] An upward groove is formed at the bottom of the lower plate 6 , which can cooperate with the upper end surface of the rubber plate 5 to form a cavity. An air inlet connected to the second vacuum tube 9 is also formed on the lower plate 6 .

[0021] The second vacuum tube 9 is a curved tube that passes through the balance chamber 12 at 90 degrees. One end of the second vacuum tube 9 is connected to the upper chamber 13 through the air inlet on the lower plate 6, and the other end of the second vacuum tube 9 passes through the connecting side plate 7 and is connected to the vacuum pump.

[0022] The third vacuum tube 11 is disposed on the first support plate 1 and the second support plate 10 respectively, and is communicated with the lower chamber 14 above.

[0023] The laminating unit of the upper layer is directly mounted on the second supporting plate 10 of the lower layer through the pressing plate 3 and forms a new lower chamber 14 with the second supporting plate 10 of the lower layer.

[0024] When in use, firstly, a vacuum pump is used to evacuate air into the balance chamber 12, the upper chamber 13, and the lower chamber 14 through the first vacuum tube 8, the second vacuum tube 9, and the third vacuum tube 11, respectively, so that the balance chamber 12, the upper chamber 13, and the lower chamber 14 are in a vacuum state, and the photovoltaic module 2 is in a bubble-free state.

[0025] Then, air is inflated into the upper chamber 13 through the second vacuum tube 9 , and the adhesive sheet 5 is pushed downward under the action of air pressure to laminate the photovoltaic modules 2 .

[0026] After lamination is completed, the upper chamber 13 is evacuated again, and the rubber plate 5 is pushed upward until it is completely in contact with the groove surface at the bottom of the lower plate 6, and then inflation is stopped to completely compress the upper chamber. After completion, the laminated photovoltaic module can be taken out.

[0027] The specific principles of the utility model are:

[0028] During the lamination process, there is no structure or pressure on the top of the second support plate 10 on the top of the uppermost lamination unit, so the upper surface is subjected to an absolute downward pressure of 101 kPa. During the vacuum evacuation of the lower chamber 14, the absolute pressure inside the lower chamber 14 is maintained at 40-100 Pa. When the upper chamber 13 is inflated through the second vacuum tube 9 for lamination, the absolute pressure inside the upper chamber 13 is 101 kPa. At the same time, the absolute pressure inside the balance chamber 12 is always maintained at 50 kPa by adjusting the vacuum pump.

[0029] According to the above data, it is calculated that when the assembly is laminated, the second support plate 10 is subjected to a downward pressure of 50 kPa, and the lower plate 6 is subjected to an upward pressure of 50 kPa.

[0030] When the workpiece needs to be taken out after lamination is completed, the upper chamber 13 is evacuated to a vacuum state, and at the same time, the rubber plate 5 is tightly fitted to the bottom of the lower plate 6, the upper chamber 13 is completely compressed, and the internal pressure is 0. At this time, the lower plate 6 is subjected to an upward pressure of 50 kpa.

[0031] Therefore, when the laminate structure is in any working state, the pressure exerted on the second support plate 10 and the lower plate is balanced through the balance chamber 12, so that the maximum pressure exerted on the second support plate 10 and the lower plate 6 of the laminate structure is 50 kPa, which is half of the atmospheric pressure. Therefore, the utility model can reduce the maximum pressure exerted on the laminate structure, thereby ensuring that the laminate structure maintains good stability during multi-layer stacking during lamination and does not deform.

[0032] The utility model provides a lamination structure of a vacuum balanced multi-layer photovoltaic module. By setting a lamination unit composed of a balance chamber, an upper chamber, and a lower chamber, the pressure on the support plate and the lower plate during the lamination process is reduced, so that the lamination structure maintains good stability during multi-layer stacking, avoids the situation in which the stacked structure is easily deformed due to the heavy structure during the lamination process, and greatly improves the lamination efficiency.

Claims

1. A laminated structure of a vacuum-balanced multilayer photovoltaic module, characterized in that: The invention comprises a plurality of laminating units designed to be stacked up and down, wherein the laminating units comprise a first support plate (1), a pressing plate (3), a rubber plate (5), a lower plate (6) and a second support plate (10) arranged in sequence from bottom to top, wherein the first support plate (1), the pressing plate (3) and the rubber plate (5) enclose a closed lower chamber (14) for facilitating vacuum extraction, an upper chamber (13) for facilitating lamination is formed between the rubber plate (5) and the lower plate (6), and the lower plate (6) and the second support plate (10) are connected via four connecting side plates. (7) are connected to form a closed balancing chamber (12); the laminating unit of the upper layer is directly mounted on the second supporting plate (10) of the lower layer through the pressing plate (3); the photovoltaic module (2) is mounted on the top of the first supporting plate (1) of the lower chamber (14); one side of the balancing chamber (12) is connected to the vacuum pump through the first vacuum tube (8), the top of the upper chamber (13) is connected to the vacuum pump through the second vacuum tube (9), and one side of the lower chamber (14) is connected to the vacuum pump through the third vacuum tube (11).

2. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 1, characterized in that: The pressing plate (3) is arranged on the peripheral side of the first supporting plate (1), and a sealing strip (4) having a sealing function is arranged between the pressing plate (3) and the first supporting plate (1).

3. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 1, characterized in that: The bottom of the lower plate (6) is provided with an upward groove which cooperates with the upper end surface of the rubber plate (5) to form a cavity. The lower plate (6) is also provided with an air inlet which is in communication with the second vacuum tube (9).

4. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 3, characterized in that: The second vacuum tube (9) is a curved tube extending through the balance chamber (12) at a 90-degree angle. One end of the second vacuum tube (9) is connected to the upper chamber (13) via an air inlet on the lower plate (6). The other end of the second vacuum tube (9) passes through the connecting side plate (7) and is connected to the vacuum pump.

5. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 1, characterized in that: The third vacuum tube (11) is respectively arranged on the first support plate (1) and the second support plate (10) and is in communication with the upper lower chamber (14).

6. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 1, characterized in that: The absolute pressure inside the balance chamber (12) is 50 kPa.

7. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 1, characterized in that: The absolute pressure inside the upper chamber (13) during lamination is 101 kPa.

8. The laminated structure of a vacuum-balanced multi-layer photovoltaic module according to claim 1, characterized in that: The absolute pressure inside the lower chamber (14) is maintained at 40-100 Pa.

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