A novel curved photovoltaic module laminating machine and processing method thereof

Abstract

In view of the problem of low heating efficiency of laminators in the prior art during the lamination process, the present invention provides a curved photovoltaic module laminator, comprising two upper and lower relatively arranged heating boxes, an air supply, heating and pressurizing device and a vacuum pumping device; each heating box comprises a chamber top plate, an elastic chamber partition and a pressure strip arranged on the chamber top plate to seal the edge of the chamber partition, and a heating chamber is formed between the chamber partition and the chamber top plate; the pressure strips of the two heating boxes are opposite to each other, and when the upper and lower heating boxes are closed, the two relatively arranged chamber partitions and the pressure strip form a sealed lamination chamber, and the vacuum pumping device is respectively connected to the two heating chambers and the lamination chamber; the air supply, heating and pressurizing device is connected to the heating chamber, and can fill the heating chamber with heated and pressurized gas; while using hot gas to generate pressure, the chamber partition is directly heated, which greatly improves the heating efficiency during the lamination process.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic component lamination processing, and in particular to a novel curved photovoltaic component laminator and a processing method thereof. Background Art

[0002] Laminator is a very important equipment, which refers to a mechanical equipment that presses multiple layers of materials together. For example, when producing photovoltaic modules, the laminator presses EVA, solar cells, tempered glass, and back film (TPT, PET and other materials) into a whole with a certain rigidity under high temperature and vacuum conditions. Existing laminators, such as the Chinese patent with publication number CN101249739A, disclose a sandwich sheet forming machine, including three vacuum chambers: upper, middle, and lower. The sheet to be processed is placed in the middle vacuum chamber. The middle vacuum chamber is composed of an upper vacuum chamber partition, a lower vacuum chamber partition, and a sealing strip. The upper vacuum chamber can move up and down. During lamination, the upper vacuum chamber moves down to form a sealed vacuum lamination chamber with the lower vacuum chamber. The three vacuum chambers are evacuated at the same time, and the sheet electric heating plate heats the upper vacuum chamber and the lower vacuum chamber to a certain temperature. The upper vacuum chamber and the lower vacuum chamber are inflated at the same time, and the middle vacuum chamber is kept in vacuum. The elastic partitions of the upper vacuum chamber and the lower vacuum chamber are pressurized to the sheet to be processed, and the sheet to be processed is subjected to an isostatic atmospheric pressure to obtain a vacuum hot-pressed composite sheet product.

[0003] This laminator that applies pressure to the plate to be processed from top to bottom can better process photovoltaic modules and flexible photovoltaic modules with hyperbolic surfaces, but the heating method therein cannot adapt well to photovoltaic modules and flexible photovoltaic modules with hyperbolic surfaces. If the vacuum chamber partition is simply heated by an electric heating plate, after the upper vacuum chamber and the lower vacuum chamber are filled with air, the air will inevitably take away part of the heat on the chamber top plate, thereby reducing the heating efficiency of the vacuum chamber partition, and further reducing the heating efficiency of the photovoltaic module during the lamination process. If the electric heating plate and the vacuum chamber partition are set separately, after the upper vacuum chamber and the lower vacuum chamber are filled with air, the electric heating plate will be separated from the vacuum chamber partition, and the air will initially take away most of the heat on the chamber top plate, and the heat loss of the electric heating plate will be very serious, seriously reducing the heating efficiency. If the electric heating plate and the vacuum chamber partition are in contact with each other, the electric heating plate will bend or affect the vacuum chamber partition from fitting the photovoltaic module when processing a photovoltaic module with a hyperbolic surface or a flexible photovoltaic module, and the air will still take away part of the heat on the top plate of the chamber. In either case, the problem of low heating efficiency will be caused. Summary of the invention

[0004] The purpose of the present invention is to provide a new curved photovoltaic module laminator and a processing method for curved photovoltaic modules to improve the heating efficiency during the lamination process in order to solve the problem of low heating efficiency during the lamination process of the laminator in the prior art.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A novel curved photovoltaic module laminating machine comprises two upper and lower heating boxes arranged opposite to each other, and also comprises an air supply, heating and pressurizing device and a vacuuming device; each of the heating boxes comprises a chamber top plate, an elastic chamber partition, a pressure strip arranged on the chamber top plate to seal the edge of the chamber partition, and a connecting piece for fixing the chamber top plate and the pressure strip, and a heating chamber is formed between the chamber partition and the chamber top plate; the pressure strips of the two heating boxes are opposite to each other, and when the upper and lower heating boxes are closed, the two oppositely arranged chamber partitions and the pressure strip 13 form a sealed lamination chamber; the vacuuming device is respectively connected to the two heating chambers and the lamination chamber; the air supply, heating and pressurizing device is connected to the heating chamber, and can fill the heating chamber with heated and pressurized gas.

[0007] Preferably, a heating device is provided in the top plate of the chamber.

[0008] Preferably, the gas supply heating and pressurizing device includes a gas heating pipe, a heater for heating the air in the gas heating pipe, a compressed gas source and a pressure-stabilizing tank. The gas heating pipe connects the atmosphere and the pressure-stabilizing tank, the pressure-stabilizing tank connects the heating chamber, the compressed gas source is connected to the pressure-stabilizing tank, and the heated air and compressed gas source in the gas heating pipe both enter the heating chamber via the pressure-stabilizing tank; a flange is provided at the edge of the chamber top plate opposite to the pressure strip.

[0009] Preferably, the gas heating tube includes a plurality of straight tubes arranged side by side and elbows connecting the straight tubes in series in sequence; the heater is a fin heating tube, and a fin heating tube is fixedly arranged in each straight tube.

[0010] Preferably, a sealing groove and a sealing protrusion and a sealing groove matching therewith are respectively provided on the surfaces of the pressure strip and the chamber top plate facing each other, and the sealing groove and the sealing protrusion are arranged in a circuitous continuous S shape.

[0011] Preferably, a plurality of ventilation holes are provided on the chamber top plate, and the vacuum extraction device and the air supply, heating and pressurizing device are connected with the heating chamber through the ventilation holes; and a wind line connecting the ventilation holes is provided on the surface of the chamber top plate facing the chamber partition.

[0012] A method for laminating curved photovoltaic modules comprises the following steps: laminating with a laminator having the following structure, comprising a sealed laminating chamber, wherein sealed heating chambers are respectively arranged on the upper and lower sides of the laminating chamber, and the heating chamber and the laminating chamber are separated by an elastic chamber partition; firstly, the heating chamber is evacuated, the module to be processed is placed in the laminating chamber, and the laminating chamber is closed; then, the laminating chamber is evacuated; then, heated high-pressure gas is filled into the heating chamber to heat the chamber diaphragm, and the chamber partition squeezes and heats the module to be processed to complete the lamination.

[0013] Preferably, the temperature of the hot air in the heating chamber is 120°C-180°C, and the air pressure in the heating chamber is 1-2 atmospheres.

[0014] A method for laminating curved photovoltaic modules, which is performed by laminating using a laminator having the following structure, including a sealed laminating chamber, wherein sealed heating chambers are respectively arranged on the upper and lower sides of the laminating chamber, the heating chamber and the laminating chamber are separated by an elastic chamber partition, a chamber top plate is arranged on the side of the heating chamber away from the chamber partition, and a heater is arranged on the chamber top plate; firstly, the heating chamber is evacuated to make the chamber partition and the chamber top plate abut against each other; the component to be processed is placed in the laminating chamber, and the laminating chamber is closed; the heater heats the chamber top plate and the chamber partition in contact with the chamber top plate; then the laminating chamber is evacuated; then, heated high-pressure gas is filled into the heating chamber to heat the chamber partition, the chamber partition squeezes and heats the component to be processed to complete the lamination, and at the same time, the hot air directly heats the chamber partition, and at the same time, the chamber top plate continuously radiates and heats the chamber partition.

[0015] Preferably, the heater heats the chamber top plate to 110°C-175°C; the hot air temperature in the heating chamber is 120°C-180°C, and the air pressure in the heating chamber is 1-2 atmospheres.

[0016] The present invention has the following beneficial effects:

[0017] The structure of simultaneous pressurization and heating at the top and bottom is particularly suitable for the processing of curved components and flexible components. By setting up an air supply heating and pressurization device to preheat the air filled into the inflation heating chamber, it is ensured that the air will not take away the heat on the chamber partition during the inflation and pressurization process, which helps to ensure the stability of the heating temperature. After inflation, the chamber top plate continues to heat the chamber partition by thermal radiation, and at the same time forms a heat shield to prevent the hot air from exchanging heat with the outside world while continuing to replenish heat for the hot air, further ensuring the stability of the temperature. In addition, the hot air heating method helps to ensure that the temperature of each part of the chamber partition remains consistent. When mass production is carried out, the temperature of each component to be processed can be well guaranteed to be consistent. Compared with the prior art, the heating device in the technical solution of the present invention does not need to be directly connected to the chamber partition, and will not move or bend with the air filling, which helps to improve the service life of the heating device. The provision of a pressure stabilizing tank helps to improve the temperature uniformity and also plays a role in stabilizing the pressure. The shape of the gas heating tube and the setting of the finned heating tube can reduce the space occupied by the gas heating tube while ensuring the contact area between the air and the heater. A plurality of vent holes can improve the efficiency of inflation and exhaust. A wind line slot can improve the exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of a novel curved photovoltaic module laminating machine of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the gas supply heating and pressurizing device in the embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of a chamber top plate in the structure of an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the connection between the connecting pipe and the heating box in the structure of the embodiment of the present invention;

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0023] Description of reference numerals: 10, heating box; 11, chamber top plate; 111, vent hole; 112, air line; 113, electric heating pipe; 114, sealing groove; 12, chamber partition; 13, pressure strip; 131, lamination chamber vacuum interface; 132, sealing protrusion; 14, connector; 15, box body; 16, thermal insulation cotton; 17, flange;

[0024] 20. Gas supply heating and pressurizing device; 21. Gas heating pipe; 211. Inlet; 212. Outlet; 22. Heater; 23. Compressed air interface; 24. Pressure regulating tank; 25. Control valve;

[0025] 30. Connecting pipe; 31. Vacuuming interface of heating chamber; 32. Air inlet interface; 33. Half pipe; 34. Branch pipe; 35. Main pipe;

[0026] 40. Lamination chamber; 50. Heating chamber; 60. Components to be processed. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-5 The present invention is further described in detail with reference to the accompanying drawings. The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] like Figure 1 and Figure 2 As shown, a new curved photovoltaic module laminating machine according to an embodiment of the present invention comprises two upper and lower heating boxes 10 arranged opposite to each other, an air supply, heating and pressurizing device 20 and a vacuuming device.

[0029] Each heating box 10 includes a chamber top plate 11, an elastic chamber partition 12, a pressure strip 13 and a connecting piece 14. The chamber partition 12 is arranged below the chamber top plate 11, preferably arranged in parallel, and the pressure strip 13 presses the four sides of the chamber partition 12 on the chamber top plate 11 in a sealed manner. The pressure strip 13 is fixedly connected to the chamber top plate 11 through a connecting piece 14, and the connecting piece 14 can be a bolt, a screw, a quick clamp, etc., preferably a latch-type quick clamp, which can be purchased on the market. While fixing the chamber partition 12, the pressure strip 13 and the chamber top plate 11 also act as a sealing gasket to ensure sealing, so that a heating chamber 50 is formed between the chamber partition 12 and the chamber top plate 11. The air outlets of the vacuum device and the gas supply, heating and pressurizing device 20 are respectively connected to the heating chamber 50. The gas supply, heating and pressurizing device 20 fills the heated gas into the heating chamber. The pressure strip is preferably a frame-shaped structure, which is easy to operate.

[0030] The pressure strips 13 of the two heating boxes 10 are arranged opposite to each other, and a sealing member is arranged on the pressure strips 13. When the two heating boxes 10 are closed, the two chamber partitions 12 and the pressure strips 13 form a sealed lamination chamber 40. Figure 1 As shown, a lamination chamber vacuum interface 131 is provided on the layering strip 13 , and the vacuum interface 131 of the vacuum device is connected to the lamination chamber 40 .

[0031] A control valve 25 is provided between the vacuum device and the heating chamber 50, and the control valve 25 controls the on-off of the vacuum device and the heating chamber 50. A control valve 25 is also provided between the air supply, heating and pressurizing device 20 and the heating chamber 50, and controls the on-off of the air supply, heating and pressurizing device 20 and the heating chamber 50. A control valve 25 is provided between the laminating chamber 40 and the vacuum device, and controls the on-off of the vacuum device and the laminating chamber 40.

[0032] When laminating the components, the vacuum device first evacuates the two heating chambers 50, places the component to be processed 60 between the two heating boxes 10, and closes the upper heating box 10 with the lower heating box 10. Figure 1 As shown, at this time, the component to be processed 60 is sealed in the laminating chamber 40, and the vacuum device evacuates the laminating chamber 40, the vacuum device is closed, and the control valve 25 between the heating chamber 50, the laminating chamber 40 and the vacuum device is closed.

[0033] The heating device in the chamber top plate 11 heats the chamber partition 12, and the control valve 25 between the heating chamber 50 and the air supply, heating and pressurizing device 20 is opened. The air is heated by the air supply, heating and pressurizing device 20 and sent into the heating chamber 50 until the air pressure in the heating chamber 50 reaches two atmospheres. In this process, the two chamber partitions 12 squeeze the components to be processed 60 from the upper and lower sides at the same time under the action of gas, thereby realizing the lamination processing of the components to be processed 60. At the same time, the hot air is in direct contact with the chamber partition 12 to continuously heat the chamber partition 12.

[0034] This structure of pressurizing the battery components on both the upper and lower sides is particularly suitable for the processing of curved components and flexible components. The air supply heating and pressurizing device 20 is used to make the pressurized air directly heat the chamber partition 12 at the same time. Since the chamber partition is directly heated by hot gas, the temperature of the gas entering the heating chamber can be preset and adjusted. Therefore, the temperature of the heating partition can be quickly increased and the workpiece can be continuously heated. It is ensured that the process of inflation and pressurization does not take away the heat on the chamber partition 12, and the efficiency of heating the chamber partition 12 is greatly improved. At the same time, the temperature stability of the heated component 60 to be processed is also ensured. In addition, the use of hot air heating helps to ensure that the temperature of each part of the chamber partition 12 remains consistent. When mass production is carried out, the temperature consistency of each component 60 to be processed can be well guaranteed.

[0035] like Figure 1 As shown, preferably, a heating device is built into the chamber top plate 11, and the heating device can be an electric heating tube, which heats up after being powered on; or it can be an oil heating device, which heats up after hot oil is passed in, preferably an electric heating tube or a resistance wire. When laminating, the chamber partition 12 can be preheated through the chamber top plate 11 after the heating chamber 50 is evacuated and before hot air is filled in. It helps to improve the heating efficiency of the chamber partition 12. Moreover, after the hot air is filled in, the chamber top plate 11 can continue to heat the chamber partition 12 by means of thermal radiation. The heated chamber top plate 11 can also form a heat shield for the heating chamber 50, while continuously supplementing heat for the hot air, which helps to improve the heating efficiency and continuously maintain the stability of the lamination temperature.

[0036] Preferably, a flange 17 is provided on the edge of a side of each chamber top plate 11 opposite to the chamber partition plate 12 , and the pressure strip 13 is pressed on the flange 17 to ensure that there is a certain space between the chamber top plate 11 and the chamber partition plate 12 , which helps to inflate the heating chamber 50 .

[0037] Preferably, the gas supply heating and pressurizing device 20 comprises a gas heating pipe 21, a heater 22 for heating the air in the gas heating pipe 21, a pressure stabilizing tank and a compressed gas source. Preferably, two groups of the gas supply heating and pressurizing device 20 are provided and connected to two heating boxes 10 respectively.

[0038] One end of the gas heating pipe 21 is an inlet 211 connected to the atmosphere or a normal pressure gas source, or a gas source with a certain pressure, and the other end is an outlet 212 connected to the heating chamber 50, and a control valve 25 is provided on the inlet 211. The pressure-stabilizing tank 24 is arranged between the heating chamber 50 and the gas heating pipe 21. The pressure-stabilizing tank 24 is preferably cylindrical, one end of which is connected to the heating chamber 50, and the other end is connected to the outlet 212 of the gas heating pipe 21. The compressed gas source is connected to the pressure-stabilizing tank 24 through the compressed air interface 23, and a control valve 25 is provided between the compressed gas source and the pressure-stabilizing tank. The heater 22 can adopt a structure such as an electric heater or an oil heating device, and preferably the heater 22 is a finned heating tube. The heater 22 is preferably arranged in the gas heating pipe 21.

[0039] After the heating chamber 50 is evacuated, the air passes through the gas heating pipe 21 under the action of atmospheric pressure and is heated by the heater before flowing into the negative pressure heating chamber 50. At this time, the control valve 25 on the inlet 211 is closed, and the compressed gas source fills the pressure stabilizing tank 24 with compressed air. The compressed air and the hot air in the pressure stabilizing tank 24 are fully mixed in the larger tank body and then enter the heating chamber 50, thereby achieving the heating and expansion of the heating chamber 50, and then ensuring the temperature and pressure of the components to be processed by the chamber partition 12 during the lamination process. The pressure stabilizing tank 24 plays a role in stabilizing the pressure and improving the uniformity of the gas temperature in the heating chamber.

[0040] Preferably, the gas heating pipe 21 includes a plurality of straight pipes arranged side by side and curved pipes connecting the straight pipes in series, and a finned heating pipe is inserted in each straight pipe. This structure can reduce the space occupied by the gas heating pipe 21 while ensuring the contact area between the air and the heater 22.

[0041] like Figure 3 As shown, it is preferred to set a plurality of vents 111 on the chamber top plate 11, and the vents 111 are through holes. The vacuum device and the air supply, heating and pressurizing device 20 are respectively connected to the heating chamber through the vents 111. There are multiple vents 111, which can improve the efficiency of inflation and exhaust. When batch lamination is performed, the number and distribution of the vents 111 can be set according to the actual size of the component to be processed 60. When placing the component to be processed 60, the workpiece is placed where the vents 111 are set, which can ensure that the compressed gas filled in exerts pressure on the chamber partition 12, so that the chamber partition can directly press on the component to be processed 60 to effectively prevent the relative movement of the structure inside the component. Preferably, 6-8 vents 111 are set on each square meter of the chamber top plate 11, which is more suitable for the processing of existing products on the market. Preferably, a wind line 112 is provided on the surface of the chamber top plate 11 facing the chamber partition 12, and the wind line 112 is in the shape of a fine groove and connects each vent 111. When the vacuum operation is performed, the air can flow along the wind line 112 to the vent hole 111, which can improve the vacuum efficiency and the uniformity of gas distribution, and make the pressure in the heating chamber uniform.

[0042] Preferably, combined Figure 3 and Figure 4 As shown, a connecting pipe 30 is provided to connect the vent 111 with the vacuum pumping device, and the vent with the air supply, heating and pressurizing device 20. The connecting pipe 30 includes two horizontally arranged main pipes 35, a plurality of parallelly arranged half pipes 33 and vertically arranged branch pipes 34. A heating chamber vacuum pumping interface 31 is provided on one of the main pipes 35, and an air inlet interface 32 is provided on the other main pipe 35. The heating chamber vacuum pumping interface 31 is connected to the vacuum pumping device, and the air inlet interface 32 is connected to the air outlet of the air supply, heating and pressurizing device 20. Preferably, the vents 11 are arranged in several rows, the half pipes 33 are arranged as pipes with a U-shaped cross section, the half pipes 33 are fixedly connected to the surface of the chamber top plate 11 facing away from the chamber partition 12, and one end of the half pipe 33 corresponding to the U-shaped opening is buckled on the surface of the chamber partition 12 and covers one row of vents 111. Each half pipe 33 is connected to two main pipes 35 through two branch pipes 34. The connection pipe 30 is provided to distribute the air extraction and inflation to each vent hole 111, which helps to improve the efficiency of air extraction and inflation.

[0043] Preferably, Figure 5 As shown, a sealing protrusion 132 is provided on the surface of the pressure strip 13 facing the chamber top plate 11, and the sealing protrusion 132 is in the shape of a long strip and is arranged in a circuitous continuous S shape. A sealing groove 114 is provided on the surface of the chamber top plate 11 facing the pressure strip 13 to match the sealing protrusion 132. The sealing groove 114 and the sealing protrusion 132 can also be interchanged. The sealing groove 114 and the sealing protrusion 132 cooperate to form a toothed structure to "bite" the chamber partition 12 together, ensuring the stability of the chamber partition 12 while improving the sealing effect.

[0044] Preferably, the cross-section of the sealing groove 114 and the sealing protrusion 132 is trapezoidal, and the edges of the sealing groove 114 and the sealing protrusion 132 are rounded to prevent the edges of the sealing groove 114 and the sealing protrusion 132 from forming sharp cutting surfaces to cut the chamber partition 12, which helps to protect the chamber partition 12.

[0045] Preferably, review Figure 1 The heating box 10 also includes a box body 15 fixedly connected to the chamber top plate 11, and the chamber top plate 11 is located between the box body 15 and the chamber partition 12. A heat preservation cotton 16 is arranged on the side of the chamber top plate 11 facing away from the chamber partition 12, and the heat preservation cotton 16 is located inside the box body 15 to reduce the heat exchange between the chamber top plate 11 and the outside, and play a role in heat preservation.

[0046] A method for laminating curved photovoltaic modules is provided, wherein the laminating machine has the following structure, and comprises a sealed laminating chamber 40, wherein the upper and lower sides of the laminating chamber 40 are respectively provided with sealed heating chambers 50, and the heating chamber 50 and the laminating chamber 40 are separated by an elastic chamber partition 12.

[0047] First, the heating chamber 50 is evacuated, the component to be processed 60 is placed in the lamination chamber 40 and the lamination chamber 40 is closed.

[0048] The lamination chamber 40 is then evacuated.

[0049] Then, hot air is charged into the heating chamber 50 to increase the pressure in the heating chamber 50 to expand it, and the elastic chamber partition 12 heats up and squeezes the component to be processed 60 until the lamination is completed. Preferably, the temperature of the hot air in step S5 is 120°C-180°C, and the air pressure in the heating chamber 40 is 1-2 atmospheres.

[0050] Bring to the laminator and remove the assembly after the assembly has cooled.

[0051] This structure of simultaneously pressurizing the battery assembly on both the upper and lower sides is particularly suitable for processing curved and flexible components. Using hot air to directly heat the chamber partition 12 while pressurizing can greatly improve the efficiency of heating the chamber partition 12, while also ensuring the stability of the temperature of the heated component 60 to be processed. In addition, the diffusivity of hot air can ensure that the temperature of the heating chamber is uniform, thereby ensuring that the temperature of each part of the chamber partition 12 remains consistent. When mass production is carried out, the temperature consistency of each component 60 to be processed can be well guaranteed.

[0052] A method for laminating curved photovoltaic modules is provided, wherein the laminating is performed using a laminator having the following structure, including a sealed laminating chamber 40, wherein sealed heating chambers 50 are respectively arranged on the upper and lower sides of the laminating chamber 40, wherein the heating chamber 50 and the laminating chamber 40 are separated by an elastic chamber partition 12, wherein a chamber top plate 11 is arranged on the side of the heating chamber 50 away from the chamber partition 12, and a heater is arranged on the chamber top plate 11.

[0053] First, the heating chamber 50 is evacuated to make the chamber partition 12 and the chamber top plate 11 stick to each other; the component to be processed 60 is placed in the lamination chamber 40 and the lamination chamber is closed.

[0054] The heater heats the chamber top plate 11, and heats the chamber partition plate 12 in contact with the chamber top plate 11. Preferably, the heater heats the chamber top plate 11 to 110°C-175°C.

[0055] The lamination chamber 40 is then evacuated.

[0056] Then, the heated gas is filled into the heating chamber 50 to heat the chamber partition 12, and the chamber partition 12 squeezes and heats the component 60 to be processed to complete the lamination. At the same time, the hot air directly heats the chamber partition 12, and the chamber top plate 11 continuously radiates and heats the chamber partition 12. Preferably, the temperature of the hot air in the heating chamber 50 is 120°C-180°C, and the air pressure in the heating chamber 40 is 1-2 atmospheres.

[0057] Bring to the laminator and remove the assembly after the assembly has cooled.

[0058] Compared with the method of heating only by hot air, the chamber top plate 11 is used to preheat the chamber partition 12 before hot air is charged into the heating chamber 50. This helps to improve the heating efficiency of the chamber partition 12. Moreover, after the hot air is charged into the chamber top plate 11, the chamber partition 12 can continue to be heated by heat radiation, further improving the heating efficiency. The heated chamber top plate 11 can also form a heat shield for the heating chamber 50, and continue to provide heat for the hot air, which helps to improve the heating efficiency and continuously maintain the stability of the lamination temperature.

[0059] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A novel curved photovoltaic module laminating machine, comprising two upper and lower heating boxes (10) arranged opposite to each other, characterized in that: It also includes an air supply, heating and pressurizing device and a vacuuming device; each of the heating boxes (10) includes a chamber top plate (11), an elastic chamber partition (12), a pressure strip (13) fixed to the chamber top plate (11) to seal the edge of the chamber partition (12), and a connecting piece (14) fixing the chamber top plate (11) and the pressure strip (13); a heating chamber (50) is formed between the chamber partition (12) and the chamber top plate (11); the pressure strips (13) of the two heating boxes (10) are opposite to each other, and when the upper and lower pressure strips (13) are connected, the heating chamber (50) is formed between the chamber partition (12) and the chamber top plate (11); When the heat box is closed, two chamber partitions (12) and pressure strips (13) arranged opposite to each other form a sealed lamination chamber (40); the vacuum device is respectively connected to the two heating chambers (50) and the lamination chamber (40); the air supply heating and pressurizing device (20) is connected to the heating chamber, and can fill the heating chamber (50) with heated and pressurized gas. When hot air is filled into the heating chamber to increase the pressure in the heating chamber to cause it to expand, the elastic chamber partition heats up and squeezes the component to be processed, and the battery component is pressurized simultaneously through the upper and lower sides;The gas supply heating and pressurizing device (20) comprises a gas heating pipe (21), a heater (22) for heating the air in the gas heating pipe, a compressed gas source and a pressure stabilizing tank (24); the pressure stabilizing tank (24) is arranged between the heating chamber (50) and the gas heating pipe (21); the gas heating pipe (21) is connected to the atmosphere and the pressure stabilizing tank (24); the pressure stabilizing tank (24) is connected to the heating chamber (50); the compressed gas source is connected to the pressure stabilizing tank (24); the air heated in the gas heating pipe (21) and the compressed air provided by the compressed gas source both enter the heating chamber (50) via the pressure stabilizing tank (24); the gas heating pipe (21) is connected to the atmosphere or a constant pressure. One end of the compressed air source is an inlet (211), and the other end connected to the heating chamber is an outlet (212). A control valve (25) is provided on the inlet (211). A control valve (25) is provided between the compressed air source and the pressure-stabilizing tank. After the heating chamber (50) is evacuated, the air passes through the gas heating pipe (21) under the action of atmospheric pressure and is heated by the heater and then flows into the negative pressure heating chamber (50). At this time, the control valve (25) on the inlet (211) is closed, and the control valve (25) between the pressure-stabilizing tank and the compressed air source is opened. The compressed air source fills the pressure-stabilizing tank (24) with compressed air, and the compressed air and the hot air in the pressure-stabilizing tank (24) are in the volume ratio. After being fully mixed in the larger tank, the mixture enters the heating chamber (50), thereby achieving the heating chamber (50) being heated and expanded. The pressure strip (13) and the chamber top plate (11) are provided with a sealing groove and a sealing protrusion (132) and a sealing groove (114) matching therewith on the surfaces facing each other. The sealing groove (114) and the sealing protrusion (132) are arranged in a circuitous continuous S shape. The sealing groove (114) and the sealing protrusion (132) cooperate to form a toothed structure to "bite" the chamber partition (12). The pressure strip (13) is provided with a lamination chamber vacuum interface (131). The vacuum interface (131) of the vacuum device is connected to the lamination chamber ( 40), a plurality of vent holes (111) are provided on the chamber top plate (11), the vent holes (111) are through holes, the vacuum extraction device and the gas supply heating and pressurizing device (20) are respectively connected to the heating chamber through the vent holes (111), a plurality of vent holes (111) are provided, the number and distribution of the vent holes (111) are set according to the actual size of the component to be processed (60), and when placing the component to be processed (60), the workpiece is placed at the location where the vent holes (111) are provided, ensuring that the compressed gas filled in exerts pressure on the chamber partition (12), so that the chamber partition directly exerts pressure on the component to be processed to prevent relative movement of the structure inside the component. ; 2. The novel curved photovoltaic module laminator according to claim 1 is characterized in that: A heating device is arranged inside the chamber top plate (11).

3. The novel curved photovoltaic module laminator according to claim 1 or 2, characterized in that: A flange (17) is provided at the edge of the chamber top plate (11) opposite to the pressure strip (13).

4. The novel curved photovoltaic module laminator according to claim 3 is characterized in that: The gas heating pipe (21) comprises a plurality of straight pipes arranged side by side and elbows connecting the straight pipes in series in sequence; the heater (22) is a fin heating pipe, and a fin heating pipe is fixedly arranged in each straight pipe.

5. The novel curved photovoltaic module laminator according to claim 1 is characterized in that: A plurality of vent holes (111) are provided on the chamber top plate (11), and the vacuum extraction device and the air supply, heating and pressurizing device are connected to the heating chamber (50) through the vent holes (111); and a wind line (112) connecting the vent holes (111) is provided on the surface of the chamber top plate (11) facing the chamber partition plate (12).

6. A method for laminating a curved photovoltaic module, characterized in that: The method comprises the following steps: laminating using the new curved photovoltaic module laminator according to any one of claims 1 to 5, First, the heating chamber (50) is evacuated, the component to be processed (60) is placed in the laminating chamber (40), and the laminating chamber (40) is closed; Then, the lamination chamber (40) is evacuated; Then, heated high-pressure gas is filled into the heating chamber (50) to heat the chamber diaphragm (12), thereby increasing the pressure in the heating chamber to cause it to expand. The chamber diaphragm (12) squeezes and heats the component to be processed (60) to complete lamination. The heated high-pressure gas filled into the heating chamber is that the air heated by the heater flows into the negative pressure heating chamber under the action of atmospheric pressure, and the high-pressure normal temperature gas and the normal pressure heating gas are mixed in the pressure stabilizing tank and then enter the heating chamber to achieve heating and expansion of the heating chamber.

7. The method for laminating curved photovoltaic modules according to claim 6, characterized in that: The temperature of the hot air in the heating chamber is 120° C.-180° C., and the air pressure in the heating chamber (40) is 1-2 atmospheres.

8. A method for laminating a curved photovoltaic module, characterized in that: The laminating is performed using a laminating machine according to any one of claims 1 to 5, First, the heating chamber (50) is evacuated to make the chamber partition (12) and the chamber top plate (11) stick to each other; the component to be processed (60) is placed in the lamination chamber (40) and the lamination chamber (40) is closed; The heater heats the chamber top plate (11) and the chamber partition plate (12) in contact with the chamber top plate (11); Then, the lamination chamber (40) is evacuated; Then, heated high-pressure gas is filled into the heating chamber (50) to heat the chamber partition (12), thereby increasing the pressure in the heating chamber to cause it to expand. The chamber partition (12) squeezes and heats the component to be processed (60) to complete lamination. At the same time, the hot air directly heats the chamber partition (12), and the chamber top plate (11) continuously radiates and heats the chamber partition (12). The heated high-pressure gas filled into the heating chamber is that the air heated by the heater flows into the negative pressure heating chamber under the action of atmospheric pressure, and the high-pressure normal temperature gas and the normal pressure heating gas are mixed in the pressure stabilizing tank and then enter the heating chamber to achieve heating and expansion of the heating chamber.

9. The method for laminating curved photovoltaic modules according to claim 8, characterized in that: The heater heats the chamber top plate (11) to 110°C-175°C; the temperature of the hot air in the heating chamber (50) is 120°C-180°C, and the air pressure in the heating chamber (40) is 1-2 atmospheres.

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