A perovskite photovoltaic module encapsulation machine

Abstract

The utility model discloses a perovskite photovoltaic module packaging machine. The packaging machine comprises a module fixing and conveying module, a slit coating module, a light curing module, a hot-pressing hot-melting module and a manipulator, the slit coating module, the light curing module, the manipulator and the hot-pressing hot-melting module are all installed on the side of the module fixing and conveying module respectively, the module fixing and conveying module comprises a roller set and a fixed tray, the fixed tray is installed on the roller set, the fixed tray is loaded with a photovoltaic module, and the photovoltaic module is a perovskite photovoltaic module. The utility model can realize the rapid and low-temperature packaging of the perovskite photovoltaic module, does not use vacuum components, is used for improving the production rhythm, reducing the thermal damage to the functional layer during the packaging process, increasing nitrogen protection and improving the long-term working stability of the perovskite photovoltaic module.

Description

Technical Field

[0001] This utility model belongs to the field of solar cell technology, and in particular relates to a perovskite photovoltaic module packaging machine. Background Technology

[0002] Perovskite photovoltaics are rapidly developing due to their advantages such as tunable bandgap, high light absorption coefficient, low energy consumption, and solution-processable characteristics. Currently, the highest photoelectric conversion efficiency of single-junction perovskite photovoltaics reaches 27.3%. The industrialization of perovskite photovoltaics is accelerating, and the stability of perovskite photovoltaics is crucial for its large-scale application. Currently, the encapsulation equipment used for perovskite photovoltaics mainly comes from laminators used in crystalline silicon photovoltaics; there is no encapsulation equipment specifically designed for perovskite photovoltaic modules. Laminators generally require vacuum operations, have high equipment requirements, and are slow-paced. Furthermore, the high heating temperature of the encapsulating film during lamination can damage the functional layers of the perovskite photovoltaic module. Utility Model Content

[0003] The technical problem to be solved by this utility model is to prevent thermal damage and water and oxygen damage caused by the encapsulation process of perovskite photovoltaics in the prior art, and at the same time to avoid the use of vacuum components, so as to realize the rapid, non-destructive and automated preparation of the encapsulation process, and to provide a perovskite photovoltaic module encapsulation machine.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution: This utility model includes a component fixing and conveying module, a slot coating module, a photocuring module, a hot pressing and hot melting module, and a robotic arm. The slot coating module, photocuring module, robotic arm, and hot pressing and hot melting module are all installed on the side of the component fixing and conveying module. The component fixing and conveying module includes a roller assembly and a fixed tray. The fixed tray is installed on the roller assembly and carries a photovoltaic module, which is a perovskite photovoltaic module.

[0005] The photocuring module includes a photocuring bracket and an ultraviolet curing light source. The photocuring bracket is installed on the side of the fixed tray, and the ultraviolet curing light source is installed on the upper end of the photocuring bracket. The ultraviolet curing light source is arranged above the fixed tray through the photocuring bracket. The ultraviolet curing light source faces downward to irradiate the photovoltaic module. The area of ​​the photovoltaic module irradiated by the ultraviolet curing light source is greater than or equal to the area of ​​the photovoltaic module.

[0006] The slit coating module includes a slit coating bracket and a slit coating head. The slit coating bracket is mounted on the side of the fixed tray, and the slit coating head is mounted on the upper end of the slit coating bracket. The slit coating head is positioned above the fixed tray via the slit coating bracket. The robotic arm is mounted on the side of the fixed tray.

[0007] The hot-pressing and hot-melting module includes a hot-pressing plate bracket, a hot-pressing plate, a nitrogen source, and a thermally conductive / insulating mask. The hot-pressing plate, nitrogen source, and thermally conductive / insulating mask are all mounted on the upper end of the hot-pressing plate bracket. The hot-pressing plate, nitrogen source, and thermally conductive / insulating mask are all arranged above a fixed tray via the hot-pressing plate bracket. The nitrogen source is connected to the outside of the hot-pressing plate, and the thermally conductive / insulating mask is provided on the lower surface of the hot-pressing plate.

[0008] The hot press plate has a through hole running vertically through it, and the nitrogen source is connected to the upper end of the through hole. The thermally conductive / insulating mask includes an insulating material and a thermally conductive frame. The thermally conductive frame has an annular structure, and the insulating material is arranged inside the thermally conductive frame. The thermally conductive frame surrounds the photovoltaic module, and the insulating material isolates the hot press plate from the photovoltaic module. The hot press plate is equipped with a control device to control its vertical movement, temperature, and pressure.

[0009] The beneficial effects of this utility model are: This invention can simultaneously achieve rapid and low-temperature non-destructive encapsulation of perovskite photovoltaic modules. This design enables rapid and low-temperature encapsulation of perovskite photovoltaic modules without the use of vacuum components, thereby improving production cycle time, reducing thermal damage to functional layers during the encapsulation process, and adding nitrogen protection to improve the long-term operational stability of perovskite photovoltaic modules. Attached Figure Description

[0010] Figure 1 This is a structural diagram of a packaging machine; Figure 2 Flowchart for encapsulating perovskite modules using this device; Figure 3 This is a structural diagram of the hot press plate and the heat insulation frame.

[0011] In the diagram: 1-robotic arm, 2-photovoltaic module, 3-fixed tray, 4-roller assembly, 5-busbar, 6-slit coating head, 7-slit coating bracket, 8-photocuring bracket, 9-UV curing light source, 10-butyl tape, 11-material silo, 12-cover glass, 13-hot press plate bracket, 14-hot press plate, 141-nitrogen source, 15-thermal conductive / insulating mask, 151-insulating material, 152-thermal conductive frame. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1As shown, this utility model includes a fixing and conveying module, a slot coating module, a photocuring module, a hot-pressing and hot-melting module, and a robot 1. The slot coating module, photocuring module, robot 1, and hot-pressing and hot-melting module are all mounted to the side of the component fixing and conveying module, specifically on a transmission bracket. The fixing and conveying module includes a roller assembly 4 and a fixed tray 3. The fixed tray 3 is mounted on the roller assembly 4 and carries a photovoltaic module 2, which is a perovskite photovoltaic module. The slot coating module, photocuring module, robot 1, and hot-pressing and hot-melting module are located to the side. The roller assembly 4 drives the fixed tray 3 and the photovoltaic module 2 on it to move in different process sections. With the help of the robot 1 and corresponding devices, such as... Figure 2 As shown, the entire encapsulation process is completed sequentially by applying busbar tape 5, applying UV-curable adhesive, UV curing, applying butyl hot melt adhesive tape, covering with a glass plate, and hot-pressing hot melt edge sealing. The roller assembly 4 can stably transfer the fixed tray 3 carrying the photovoltaic modules 2 through different process stages.

[0014] Specifically, robot arm 1 places the perovskite photovoltaic module 2 on a fixed tray 3. The fixed tray 3 uses a mechanical structure or negative pressure adsorption to fix the photovoltaic module 2. Then, robot arm 1 cuts the busbar 5 from the material bin 11 and attaches it to the positive and negative electrodes of the perovskite photovoltaic module. Roller group 4 drives the fixed tray 3 to the next process stage, where UV-curable adhesive is applied to the working area of ​​the photovoltaic module 2 through the slit coating head 6. Then, it is cured under the UV curing light source 9. Next, robot arm 1 cuts butyl hot melt adhesive tape from the material bin 11 and aligns it to the four sides of the photovoltaic module 2. Next, robot arm 1 picks up the cover glass 12 from the material bin 11, aligns it and covers the photovoltaic module 2. The control device drives the hot press plate 14 equipped with the thermally conductive / insulating mask 15 to descend, heating and melting the butyl adhesive tape 10. At the same time, nitrogen source 141 blows nitrogen to protect the middle working area from damage. After the encapsulation is completed, robot arm 1 removes the encapsulated photovoltaic module 2.

[0015] The photocuring module includes a photocuring bracket 8 and a UV curing light source 9. The photocuring bracket 8 is mounted on the side of the fixed tray 3, and the UV curing light source 9 is mounted on the top of the photocuring bracket 8. The UV curing light source 9 is positioned above the fixed tray 3 via the photocuring bracket 8, and faces downwards to irradiate the photovoltaic module 2. The area of ​​the photovoltaic module 2 irradiated by the UV curing light source 9 is greater than or equal to the area of ​​the photovoltaic module 2. The slot coating head 6 is equipped with a UV curing adhesive storage tank and an automatic injection pump, among other delivery devices.

[0016] The slot coating module includes a slot coating bracket 7 and a slot coating head 6. The slot coating bracket 7 is mounted on the side of the fixed tray 3, and the slot coating head 6 is mounted on the upper end of the slot coating bracket 7. The slot coating head 6 is positioned above the fixed tray 3 via the slot coating bracket 7. The slot coating head 6 is equipped with a UV-curable adhesive reservoir and an automatic injection pump, among other delivery devices.

[0017] The robotic arm 1 is mounted on the side of the fixed pallet 3. It has functions of feeding, unloading, bonding of the busbar 5 and butyl tape 10.

[0018] like Figure 3 As shown, the hot-pressing and hot-melting module includes a hot-pressing plate bracket 13, a hot-pressing plate 14, a nitrogen source 141, and a thermally conductive / insulating mask 15. The hot-pressing plate 14 is externally connected to the nitrogen source 141. The hot-pressing plate 14, nitrogen source 141, and thermally conductive / insulating mask 15 are all mounted on the upper end of the hot-pressing plate bracket 13. The hot-pressing plate 14, nitrogen source 141, and thermally conductive / insulating mask 15 are all arranged above the fixed tray 3 via the hot-pressing plate bracket 13. The hot-pressing plate 14 is externally connected to the nitrogen source 141, and the thermally conductive / insulating mask 15 is fixedly mounted on the lower surface of the hot-pressing plate 14. The slot coating bracket 7, photocuring bracket 8, and hot-pressing plate bracket 13 can all rotate freely. The hot-pressing plate 14 has a through-hole extending vertically, with the upper end of the through-hole externally connected to the nitrogen source 141. Nitrogen gas is introduced during the hot-pressing process to provide inert gas protection for the photovoltaic module 2.

[0019] The thermally conductive / insulating mask 15 includes an insulating material 151 and a thermally conductive frame 152. The thermally conductive frame 152 is a quadrilateral annular frame structure. The insulating material 151 is arranged inside the thermally conductive frame 152. The thermally conductive frame 152 is used to surround the photovoltaic module 2. The insulating material 151 is used to isolate the heat-pressing plate 14 and the photovoltaic module 2. After the robot arm 1 picks up the cover glass 12 from the material bin 11 and aligns it on the photovoltaic module 2, the cover glass 12 is pressed onto the upper surface of the photovoltaic module 2. The cover glass 12 is used to isolate the insulating material 151 and the photovoltaic module 2.

[0020] The thermally conductive / insulating mask 15 uses a metal thermally conductive frame 152 with a thermal insulation material 151 in the middle. During the hot pressing process, the thermally conductive butyl rubber is melted for edge sealing, while protecting the working area in the middle of the photovoltaic module 2 and avoiding heat damage. The hot press plate 14 is equipped with a control device to control the up and down movement, temperature and pressure of the hot press plate 14.

[0021] In this utility model, the method of using the perovskite photovoltaic module encapsulation machine, namely the encapsulation process in the mass production of perovskite photovoltaic modules, is illustrated in the flowchart. Figure 2 It includes the following steps: (1) A busbar 5 is attached to the perovskite photovoltaic module; a perovskite photovoltaic module generally refers to a formal or inverted perovskite single-junction solar cell or a perovskite tandem cell. In this invention, the perovskite photovoltaic module can be determined according to conventional dimensions in the field. For example, the dimensions are 5*5 cm, 10*10 cm, 30*40 cm, 120*60 cm, etc.

[0022] (2) Apply UV-curable adhesive to the working area of ​​the perovskite photovoltaic module.

[0023] (3) Curing the coated UV-curable adhesive with UV light.

[0024] (4) Apply butyl hot melt adhesive tape around the working area of ​​the perovskite photovoltaic module.

[0025] (5) Cover the perovskite photovoltaic module with a glass cover plate.

[0026] (6) The perovskite photovoltaic module is hot-pressed and sealed, and the butyl tape 10 is melted and cured to complete the encapsulation.

[0027] The embodiments of this utility model are as follows: A robotic arm 1 places a 50*50 mm perovskite photovoltaic module 2 onto a 300*300 mm fixed tray 3. Then, a copper busbar measuring 50*3*0.2 mm (length / width / thickness) is cut from the material bin 11 and attached to the positive and negative electrodes of the perovskite photovoltaic module. A roller assembly 4 moves the fixed tray 3 to the next process stage, where UV-curable adhesive is applied to the working area of ​​the photovoltaic module 2 through a 40 mm wide slit coating head 6. It is then cured for 30 seconds under a 365 nm, 20W UV curing light source 9. Next, the robotic arm 1 cuts a 45*5*1 mm butyl hot melt adhesive tape from the material bin 11 and aligns it to adhere to the four sides of the photovoltaic module 2. Then, the robotic arm 1 picks up a 50*50 mm cover glass 12 from the material bin 11 and aligns it to cover the photovoltaic module 2. The control device drives a hot press plate 14 equipped with a 50*50 mm thermal conductive / insulating mask 15 downwards at 135°C. The butyl hot melt adhesive tape is heated to ℃ and melted for 3 minutes, while nitrogen source 141 blows nitrogen gas at a pressure of 0.1 MPa for 3 minutes to protect the intermediate working area from damage. After encapsulation, the encapsulated photovoltaic module 2 is removed by robot arm 1.

[0028] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

[0029] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A perovskite photovoltaic module encapsulation machine, characterized in that: The system includes a component fixing and conveying module, a slot coating module, a photocuring module, a hot pressing and hot melting module, and a robot (1). The slot coating module, photocuring module, robot (1), and hot pressing and hot melting module are all installed on the side of the component fixing and conveying module. The component fixing and conveying module includes a roller assembly (4) and a fixed tray (3). The fixed tray (3) is installed on the roller assembly (4) and carries a photovoltaic module (2). The photovoltaic module (2) is a perovskite photovoltaic module.

2. The perovskite photovoltaic module encapsulation machine according to claim 1, characterized in that: The photocuring module includes a photocuring bracket (8) and an ultraviolet curing light source (9). The photocuring bracket (8) is installed on the side of the fixed tray (3). The ultraviolet curing light source (9) is installed on the upper end of the photocuring bracket (8). The ultraviolet curing light source (9) is arranged above the fixed tray (3) through the photocuring bracket (8). The ultraviolet curing light source (9) faces downward to irradiate the photovoltaic module (2). The area of ​​the photovoltaic module (2) irradiated by the ultraviolet curing light source (9) is greater than or equal to the area of ​​the photovoltaic module (2).

3. The perovskite photovoltaic module encapsulation machine according to claim 1, characterized in that: The slit coating module includes a slit coating bracket (7) and a slit coating head (6). The slit coating bracket (7) is installed on the side of the fixed tray (3), and the slit coating head (6) is installed on the upper end of the slit coating bracket (7). The slit coating head (6) is arranged above the fixed tray (3) through the slit coating bracket (7).

4. The perovskite photovoltaic module encapsulation machine according to claim 1, characterized in that: The robotic arm (1) is mounted on the side of the fixed tray (3).

5. The perovskite photovoltaic module encapsulation machine according to claim 1, characterized in that: The hot-pressing and hot-melting module includes a hot-pressing plate bracket (13), a hot-pressing plate (14), a nitrogen source (141), and a heat-conducting / heat-insulating mask (15). The hot-pressing plate (14), the nitrogen source (141), and the heat-conducting / heat-insulating mask (15) are all installed on the upper end of the hot-pressing plate bracket (13). The hot-pressing plate (14), the nitrogen source (141), and the heat-conducting / heat-insulating mask (15) are all arranged above the fixed tray (3) through the hot-pressing plate bracket (13). The nitrogen source (141) is connected to the outside of the hot-pressing plate (14), and the heat-conducting / heat-insulating mask (15) is provided on the lower surface of the hot-pressing plate (14).

6. The perovskite photovoltaic module encapsulation machine according to claim 5, characterized in that: The hot press plate (14) has a through hole running vertically through it, and the nitrogen source (141) is connected to the upper end of the through hole.

7. A perovskite photovoltaic module encapsulation machine according to claim 5, characterized in that: The thermally conductive / insulating mask (15) includes an insulating material (151) and a thermally conductive frame (152). The thermally conductive frame (152) is an annular frame structure. The insulating material (151) is arranged inside the thermally conductive frame (152). The thermally conductive frame (152) is used to surround the photovoltaic module (2). The insulating material (151) is used to isolate the hot press plate (14) and the photovoltaic module (2).

8. A perovskite photovoltaic module encapsulation machine according to claim 5, characterized in that: The hot press plate (14) is equipped with a control device for controlling the up-and-down movement, temperature and pressure of the hot press plate (14).

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