Vacuum heating dispensing machine for perovskite solar module

Abstract

The invention relates to the technical field of perovskite solar module manufacturing equipment, and discloses a vacuum heating dispensing machine for a perovskite solar module, which comprises a vacuum chamber, a base is arranged at the bottom of the inner wall of the vacuum chamber, uniformly distributed through holes are formed in the surface of the base, uniformly distributed heat bearing strips are fixed at the top of the base, and the through holes are communicated with the vacuum chamber. And heating wires are mounted above the heat bearing strips. Dispensing operation is carried out in a vacuum environment through the vacuum heating dispensing machine, the risk of residual gas can be effectively reduced, the influence of water and oxygen on a perovskite material is reduced, and the sealing performance and reliability of a dispensing part are improved, so that the stability of the perovskite solar module is improved, and the service life of the perovskite solar module is prolonged. The stirring structure in the glue barrel can fully stir and defoam glue before dispensing, so that the quality and uniformity of the glue are improved, the reliability of the dispensing effect is ensured, and the packaging quality of the perovskite solar module is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of perovskite solar module manufacturing equipment, and particularly to a vacuum heating dispenser for perovskite solar modules. Background Art

[0002] As the third-generation solar cells, perovskite solar cells show great development potential in the photovoltaic field. However, perovskite materials are extremely sensitive to water and oxygen and are prone to decomposition when exposed to water and oxygen, which greatly reduces their stability. In the packaging process of perovskite solar modules, in order to ensure the sealing performance at the lead positions, materials such as butyl sealant and ab glue are usually used. There are many problems in traditional dispensing operations. For example, in the conventional secondary degassing method, not only does it increase the number of processes and make the operation complex, but it is still difficult to completely eliminate the risk of gas residues, which has an adverse impact on the performance and quality of perovskite solar modules. Therefore, it is urgent to develop a dispensing device that can shorten the dispensing process and reduce the risk of residual gas. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a vacuum heating dispenser for perovskite solar modules, which solves the problems that traditional dispensing operations require the conventional secondary degassing method, not only increasing the number of processes and making the operation complex, but still being difficult to completely eliminate the risk of gas residues, which has an adverse impact on the performance and quality of perovskite solar modules.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A vacuum heating dispenser for perovskite solar modules includes a vacuum chamber. At the bottom of the inner wall of the vacuum chamber, there is a base. The surface of the base is provided with uniformly distributed through holes. The top of the base is fixed with uniformly distributed heat-bearing strips. Above the heat-bearing strips, heating wires are installed. Above the multiple groups of heating wires, there is a sample. On the right side of the vacuum chamber, there is a vacuum pump. The end of the vacuum pump is connected to the vacuum chamber through a vacuum pipeline.

[0005] Preferably, on the left side of the front end of the vacuum chamber, there is a sealing door rotatably connected. On the right side of the front end of the sealing door, there is a door handle penetrating and installed.

[0006] Preferably, on the left and right sides of the inner wall of the vacuum chamber, Z-axis guide rails are fixed. Above the two Z-axis guide rails, there is a Z-axis slide seat slidably connected. On one side of the two Z-axis slide seats, Y-axis guide rails are fixed. Above the two Y-axis guide rails, there are Y-axis slide seats slidably connected. Between the two Y-axis slide seats, an X-axis guide rail is fixed. Above the X-axis guide rail, there are two or more X-axis slide seats slidably connected. On one side of the X-axis slide seats, connection columns are detachably connected. At the bottom ends of the connection columns, glue injection nozzles are installed.

[0007] Preferably, two or more glue barrels are provided on the left side of the vacuum chamber. The tops of the glue barrels are detachably connected to top covers. Cylinders are fixed to the tops of the top covers. The output ends of the cylinders penetrate through the top covers and are fixed to pistons. The bottoms of the pistons are fixed to pressing plates, and the pressing plates are located inside the glue barrels and are slidably connected thereto.

[0008] Preferably, hoses penetrate through and are fixed above the pressing plates, and the tops of the hoses pass through the top covers and are located outside thereof. The bottoms of the glue barrels penetrate through and are fixed with discharge interfaces.

[0009] Preferably, the discharge interfaces and the glue injection nozzles are connected by conduits respectively for the transportation of glue.

[0010] Preferably, motors are fixed at the bottoms near the rear ends of the glue barrels. The output ends of the motors penetrate through the glue barrels and are fixed to rotating rods. Stirring blades are fixed to one ends of the rotating rods, and the stirring blades are located below the pressing plates.

[0011] The present invention provides a vacuum heating glue dispenser for perovskite solar modules. It has the following beneficial effects:

[0012] 1. By performing glue dispensing operations in a vacuum environment through the vacuum heating glue dispenser of the present invention, the risk of residual gas can be effectively reduced, the influence of water and oxygen on perovskite materials can be reduced, the sealing performance and reliability of the glue dispensing part can be improved, thereby enhancing the stability and service life of perovskite solar modules.

[0013] 2. The present invention integrates the functions of glue dispensing and heating curing in a vacuum environment, avoiding complex processes such as secondary defoaming in traditional glue dispensing processes, shortening the glue dispensing process flow, improving production efficiency, and reducing production costs.

[0014] 3. The three-dimensional movement system of the glue injection nozzle of the present invention can achieve precise positioning, can meet the glue dispensing requirements of perovskite solar modules with different shapes and specifications, improve the accuracy and consistency of glue dispensing, and ensure the stability of product quality.

[0015] 4. The stirring structure in the glue barrel of the present invention can fully stir and defoam the glue before glue dispensing, improve the quality and uniformity of the glue, ensure the reliability of the glue dispensing effect, and further enhance the encapsulation quality of perovskite solar modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view structural schematic diagram of the present invention;

[0017] Figure 2 is a front view sectional structural schematic diagram of the glue barrel in the present invention;

[0018] Figure 3Schematic diagram of the right - hand sectional structure of the glue bucket in the present invention;

[0019] Figure 4 Schematic diagram of the front - view sectional structure of the vacuum chamber in the present invention;

[0020] Figure 5 Schematic diagram of the structure of the base, heat - receiving strip and sample in the present invention;

[0021] Figure 6 Schematic diagram of the structure of the Z - axis guide rail, Y - axis guide rail and X - axis guide rail in the present invention.

[0022] Among them, 1. Glue bucket; 2. Top cover; 3. Cylinder; 4. Piston; 5. Pressing disc; 6. Hose; 7. Discharge interface; 71. Conduit; 8. Motor; 81. Rotating rod; 82. Stirring blade; 9. Vacuum chamber; 10. Sealing door; 11. Door handle; 12. Vacuum pump; 13. Vacuum pipeline; 14. Base; 15. Through - hole; 16. Heat - receiving strip; 17. Heating wire; 18. Sample; 19. Z - axis guide rail; 20. Z - axis sliding seat; 21. Y - axis guide rail; 22. Y - axis sliding seat; 23. X - axis guide rail; 24. X - axis sliding seat; 25. Connecting column; 26. Glue injection nozzle. Detailed implementation manners

[0023] Next, in combination with the drawings of the present invention, the technical solutions of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] Please refer to the attached Figure 1 - attached Figure 6 , the embodiment of the present invention provides a vacuum heating and dispensing machine for perovskite solar modules, including:.

[0025] I. Vacuum chamber and basic structure

[0026] The vacuum chamber 9 serves as the core space for the entire dispensing operation. At the bottom of its inner wall, there is a base 14. The surface of the base 14 is distributed with evenly - spaced through - holes 15, which contribute to heat transfer and air circulation. On the top of the base 14, evenly - distributed heat - receiving strips 16 are fixed, and heating wires 17 are installed above the heat - receiving strips 16. Multiple groups of heating wires 17 constitute a heating system, which can provide uniform heat for the sample 18 placed above it to accelerate the curing of the glue. On the right side of the vacuum chamber 9, there is a vacuum pump 12, and the end of the vacuum pump 12 is connected to the vacuum chamber 9 through a vacuum pipeline 13. By starting the vacuum pump 12, the air in the vacuum chamber 9 can be pumped out to form the required vacuum environment, meeting the strict requirements for the vacuum degree in the dispensing of perovskite solar modules.

[0027] II. Vacuum Chamber Door Structure

[0028] On the left side of the front end of the vacuum chamber 9, a sealing door 10 is rotatably connected. On the right side of the front end of the sealing door 10, a door handle 11 is installed through it. By holding the door handle 11, the operator can easily open or close the sealing door 10, thus conveniently putting the perovskite solar cell module sample 18 to be dispensed into the vacuum chamber 9, or taking out the sample 18 after dispensing. The sealing performance of the sealing door 10 ensures the airtightness of the vacuum chamber 9 during operation, preventing external air from entering and affecting the vacuum environment.

[0029] III. Glue Injector Nozzle Moving Structure

[0030] On the left and right sides of the inner wall of the vacuum chamber 9, Z-axis guide rails 19 are fixed. Above the two Z-axis guide rails 19, a Z-axis slide block 20 is slidably connected. On one side of the Z-axis slide block 20, a Y-axis guide rail 21 is fixed. Above the Y-axis guide rail 21, a Y-axis slide block 22 is slidably connected. Between the two Y-axis slide blocks 22, an X-axis guide rail 23 is fixed. Above the X-axis guide rail 23, two or more X-axis slide blocks 24 are slidably connected. On one side of each X-axis slide block 24, a connecting column 25 is detachably connected. At the bottom end of the connecting column 25, a glue injector nozzle 26 is installed. This complex mechanical structure constitutes a three-dimensional moving system of the glue injector nozzle 26. By controlling the sliding of the Z-axis slide block 20, Y-axis slide block 22, and X-axis slide block 24 on their respective guide rails, the precise movement of the glue injector nozzle 26 in the X, Y, and Z directions can be realized. Thus, in the Cartesian coordinate system, the glue injector nozzle 26 can be accurately positioned at any glue injection position of the sample 18 in the vacuum chamber 9 to achieve precise dispensing operation.

[0031] IV. Glue Bucket and Related Component Structure

[0032] On the left side of the vacuum chamber 9, two or more glue buckets 1 are provided. The glue buckets 1 are used to store the glue required for dispensing, such as butyl sealant and AB glue, etc. On the top of each glue bucket 1, a top cover 2 is detachably connected, which is convenient for cleaning, maintaining the glue bucket 1 and adding glue. On the top of the top cover 2, a cylinder 3 is fixed. The output end of the cylinder 3 penetrates through the top cover 2 and is fixed with a piston 4. At the bottom end of the piston 4, a pressing plate 5 is fixed. The pressing plate 5 is located inside the glue bucket 1 and is slidably connected with the glue bucket 1. Above the pressing plate 5, a hose 6 is fixedly penetrated. The top end of the hose 6 passes through the top cover 2 and is located outside. At the bottom of the glue bucket 1, a discharge interface 7 is fixedly penetrated. The discharge interface 7 is connected with the glue injector nozzle 26 through a conduit 71. During operation, the cylinder 3 drives the piston 4 and the pressing plate 5 to move downward, and the glue in the glue bucket 1 is conveyed to the glue injector nozzle 26 through the discharge interface 7 and the conduit 71. By controlling the stroke and pressure of the cylinder 3, the output volume of the glue can be accurately controlled to achieve quantitative dispensing.

[0033] V. Glue Bucket Stirring Structure

[0034] At the bottom near the rear end of the glue bucket 1, a motor 8 is fixed. The output end of the motor 8 penetrates through the glue bucket 1 and is fixed with a rotating rod 81. One end of the rotating rod 81 is fixed with a stirring blade 82, and the stirring blade 82 is located at the bottom of the pressing disc 5. Before the dispensing operation, pretreatment operations such as degassing the glue in the glue bucket 1 are required. At this time, after the inside is pumped to a vacuum through connection with a vacuum device via the hose 6, the motor 8 is started. The motor 8 drives the rotating rod 81 and the stirring blade 82 to rotate, stirring the glue. The rotation of the stirring blade 82 enables the gas inside the glue to be fully discharged, and finally the gas generated inside is pumped out through the hose 6, thus improving the quality and uniformity of the glue and ensuring that the glue can better play a sealing role during the dispensing process.

[0035] Workflow:

[0036] I. Preparation stage

[0037] The operator opens the sealing door 10 and carefully places the perovskite solar cell module sample 18 to be dispensed above the heating wire 17 on the base 14 inside the vacuum chamber 9, ensuring that the sample 18 is placed stably and accurately. Then the sealing door 10 is closed to ensure the airtightness of the vacuum chamber 9.

[0038] II. Vacuum pumping stage

[0039] The vacuum pump 12 is started, and the vacuum pump 12 performs a vacuum pumping operation on the vacuum chamber 9 through the vacuum pipeline 13. As the air is gradually pumped out, the pressure inside the vacuum chamber 9 gradually decreases. When the set vacuum degree is reached, the vacuum pump 12 is stopped. At this time, a vacuum environment suitable for dispensing is formed inside the vacuum chamber 9.

[0040] III. Glue injection position adjustment stage

[0041] According to the dispensing process requirements of the sample 18, the moving mechanism composed of the Z-axis guide rail 19, Z-axis sliding seat 20, Y-axis guide rail 21, Y-axis sliding seat 22, X-axis guide rail 23, and X-axis sliding seat 24 is driven by the control system to accurately move the glue injection nozzle 26 to the specified glue injection position. During the movement, the cooperation between the axis guide rails and sliding seats ensures the movement accuracy and stability of the glue injection nozzle 26.

[0042] IV. Glue injection stage

[0043] The cylinder 3 above the glue bucket 1 is started, and the cylinder 3 pushes the piston 4 and the pressing disc 5 to move downward, delivering the glue in the glue bucket 1 to the glue injection nozzle 26 through the discharge interface 7 and the conduit 71. The glue injection nozzle 26 performs a dispensing operation on the sample 18 according to the predetermined dispensing path and dispensing amount. During the glue injection process, the movement of the cylinder 3 can be accurately controlled according to the characteristics of the glue and the dispensing requirements to ensure the accuracy and consistency of the dispensing.

[0044] V. Heating and curing stage

[0045] After dispensing the glue, the heating wire 17 is activated. The heat generated by the heating wire 17 is evenly transferred to the glue injection site of the sample 18 through the heat-bearing strip 16. The heating process accelerates the curing of the glue, improving the bonding strength and sealing performance between the glue and the sample 18. During the heating process, the temperature of the glue injection site of the sample 18 can be monitored in real time through the temperature sensor to ensure that the heating temperature is within an appropriate range, avoiding affecting the curing effect of the glue due to too high or too low temperature.

[0046] VI. End stage

[0047] When the glue is completely cured, the sealing door 10 is opened, and the operator carefully takes out the sample 18 to complete the entire glue dispensing process. Then, the equipment is cleaned and maintained as necessary to prepare for the next glue dispensing operation.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum heating glue dispensing machine for a perovskite solar module, comprising a vacuum chamber (9), characterized in that: A base (14) is provided at the bottom of the inner wall of the vacuum chamber (9), and the surface of the base (14) is provided with evenly distributed through holes (15). Evenly distributed heat-bearing strips (16) are fixed on the top of the base (14), and heating wires (17) are installed above the heating wires (16). Samples (18) are arranged above multiple groups of the heating wires (17); a vacuum pump (12) is provided on the right side of the vacuum chamber (9), and the end of the vacuum pump (12) is connected to the vacuum chamber (9) through a vacuum pipe (13).

2. A vacuum heating dispensing machine for perovskite solar panels according to claim 1, characterized in that: A sealing door (10) is rotatably connected to the left side of the front end of the vacuum chamber (9), and a door handle (11) is penetrated and installed on the right side of the front end of the sealing door (10).

3. The vacuum heating dispensing machine for perovskite solar panels according to claim 1, characterized in that: Z-axis guide rails (19) are fixed on both sides of the inner wall of the vacuum chamber (9); a Z-axis slide seat (20) is slidably connected to the top of the two Z-axis guide rails (19); a Y-axis guide rail (21) is fixed on one side of the two Z-axis slide seats (20); a Y-axis slide seat (22) is slidably connected to the top of the two Y-axis guide rails (21); an X-axis guide rail (23) is fixed between the two Y-axis slide seats (22); two or more X-axis slide seats (24) are slidably connected to the top of the X-axis guide rail (23); a connecting column (25) is detachably connected to one side of the X-axis slide seat (24); a glue injection nozzle (26) is installed at the bottom end of each connecting column (25).

4. The vacuum heating dispensing machine for perovskite solar panels according to claim 1, characterized in that: Two or more glue barrels (1) are arranged on the left side of the vacuum chamber (9), and the tops of the glue barrels (1) are detachably connected to a top cover (2), and a cylinder (3) is fixed to the top of the top cover (2), and the output end of the cylinder (3) passes through the top cover (2) and is fixed with a piston (4), and a lower pressure plate (5) is fixed to the bottom end of the piston (4), and the lower pressure plate (5) is located inside the glue barrel (1) and is slidably connected thereto.

5. A vacuum heating dispensing machine for perovskite solar panels according to claim 4, characterized in that: A hose (6) is passed through and fixed on the top of the lower pressure plate (5), and the top end of the hose (6) passes through the top cover (2) and is located outside the top cover, and a discharge interface (7) is passed through and fixed on the bottom of the rubber barrel (1).

6. A vacuum heating dispensing machine for perovskite solar panels according to claim 5, characterized in that: The discharge interface (7) is connected to the glue injection nozzle (26) through a conduit (71) for conveying glue liquid.

7. A vacuum heating dispensing machine for perovskite solar panels according to claim 4, characterized in that: A motor (8) is fixed at the bottom of the rear end of the glue barrel (1), the output end of the motor (8) passes through the glue barrel (1) and is fixed with a rotating rod (81), one end of the rotating rod (81) is fixed with a stirring blade (82), and the stirring blade (82) is located at the bottom of the lower pressure plate (5).

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