Perovskite photovoltaic module and encapsulation device thereof

Abstract

The application discloses a perovskite photovoltaic module and a packaging device thereof, and relates to the technical field of photovoltaic modules. The four peripheral extension parts of the upper POE adhesive film are folded downward and integrally adhered and pressed to cover the periphery of the back plate, the bottom POE adhesive film and the battery chip, which can effectively improve the packaging performance of the photovoltaic module battery, guarantee the sealing capacity of the edge, ensure the sealing performance of the upper POE adhesive film, guarantee the water permeation prevention and crack prevention capacity at the laminated edge, and improve the hot-pressing packaging effect. The packaging device can realize the hot-pressing packaging of the battery piece and the adhering and pressing of the upper POE adhesive film at the same time, so that the four peripheral extension parts of the upper POE adhesive film are integrally adhered and pressed to cover the periphery of the back plate, the bottom POE adhesive film and the battery chip in a hot-pressing manner after being folded downward, and the overall packaging capacity and packaging performance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic modules, and in particular to a perovskite photovoltaic module and a packaging device thereof. Background Art

[0002] Perovskite solar cells (PSCs) are a type of solar cell that includes compounds with a perovskite structure. Due to their high cell efficiency, perovskite solar cells are currently the fastest-growing solar technology. Perovskite solar cells have the potential to achieve higher efficiency and extremely low production costs, making them commercially attractive. Compared with silicon cells, perovskite cells have obvious advantages, specifically high conversion efficiency and low cost. However, perovskites decompose over time when exposed to moisture, light, heat, and oxygen, resulting in a shorter service life. Therefore, for perovskite solar cells, the performance of their packaging is particularly important and directly related to their service life.

[0003] The current packaging of perovskite solar cells generally involves encapsulating the cells between the cover and backplane, and using EVA film or POE film to press the cells and cover, and the cells and backplane together. Before pressing, the gas can be exhausted by vacuuming to ensure the packaging performance of the pressed and bonded cells. After the packaging, a metal frame is used to reinforce and fix the cells. However, during use, this method is prone to cracks in the lamination due to changes in external ambient temperature, moisture, corrosion, and other issues. Moisture will gradually penetrate the cracks in the edge lamination, thereby affecting the service life of the photovoltaic module. The impact is relatively small for silicon cells, but it is more significant for perovskite cells, thus affecting the service life of the cells.

[0004] Therefore, it is necessary to provide a perovskite photovoltaic module and its packaging device to solve the above problems. Summary of the Invention

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A perovskite photovoltaic module, characterized in that it comprises: a backplane, a bottom POE film, a battery chip, an upper POE film and a glass cover plate; wherein the backplane and the bottom surface of the battery chip are connected together by the bottom POE film, and the top surface of the battery chip and the glass cover plate are connected together by the upper POE film; characterized in that the edges of the battery chip are located between the upper POE film and the bottom POE film and are also coated with an inner sealing layer; and the four sides of the upper POE film extend a certain distance from the battery chip, and the four sides of the upper POE film can be folded downward to be integrally glued and pressed onto the four sides of the backplane, the bottom POE film and the battery chip; and after the four sides of the upper POE film are folded and pressed onto the four sides of the upper POE film, the lower edge of the folded, glued and wrapped part of the upper POE film is flush with the bottom surface of the backplane.

[0006] Furthermore, preferably, after the peripheral extension portions of the upper POE film are folded, pressed and coated, the peripheral edges of the glass cover are coated with an edge sealing layer, and the lower end of the edge sealing layer is sealed against the bend of the upper POE film.

[0007] Furthermore, preferably, the peripheral extension portions of the upper POE film are folded downward and then integrally bonded and pressed onto the peripheral edges of the back plate, the bottom POE film, and the battery chip by means of heat pressing.

[0008] Furthermore, the present invention also provides a packaging device for a perovskite photovoltaic module, which is used for packaging a perovskite photovoltaic module described in the present invention, and is characterized in that it is used to laminate the backplane, bottom POE film, battery chip, upper POE film and glass cover together, and fold the peripheral extension of the upper POE film downward and then adhere and press it to the peripheral edges of the backplane, bottom POE film and battery chip in a hot pressing manner; it comprises:

[0009] A negative pressure adsorption platform, which is used to adsorb and fix the backplane so that the bottom POE film, the battery chip, the upper POE film and the glass cover are stacked on the backplane in sequence;

[0010] An intermediate laminating mechanism, which is used to laminate and press the backplane, the bottom POE film, the battery chip, the upper POE film and the glass cover together;

[0011] a first upper POE film edge folding and pressing mechanism, which is arranged on the side of the intermediate laminating mechanism and is used to fold the first edge of the upper POE film downward and perform hot pressing;

[0012] A second upper POE film edge folding and pressing mechanism, which is arranged on the side of the intermediate laminating mechanism and is used to fold the second edge of the upper POE film downward and hot press it;

[0013] A third upper POE film edge folding and pressing mechanism, which is arranged on the side of the intermediate laminating mechanism and is used to fold the third edge of the upper POE film downward and perform hot pressing;

[0014] The fourth upper POE film edge folding and pressing mechanism is arranged on the side of the intermediate laminating mechanism, and is used to fold the fourth edge of the upper POE film downward and heat press it; wherein;

[0015] The first upper POE film edge folding and pressing mechanism is arranged opposite to the third upper POE film edge folding and pressing mechanism, the second upper POE film edge folding and pressing mechanism is arranged opposite to the fourth upper POE film edge folding and pressing mechanism, and the first upper POE film edge folding and pressing mechanism, the second upper POE film edge folding and pressing mechanism, the third upper POE film edge folding and pressing mechanism and the fourth upper POE film edge folding and pressing mechanism are arranged in a square structure;

[0016] The first side of the upper POE film is parallel to the third side of the upper POE film, and the second side of the upper POE film is parallel to the fourth side of the upper POE film; the first side of the upper POE film is perpendicular to the second side of the upper POE film.

[0017] Furthermore, preferably, the first upper POE film edge folding mechanism, the second upper POE film edge folding mechanism, the third upper POE film edge folding mechanism and the fourth upper POE film edge folding mechanism have the same structure, and all include an upper connecting mechanism and a folding mechanism. The upper connecting mechanism is arranged on the packaging frame, and the folding mechanism is arranged at the lower end of the upper connecting mechanism. The folding mechanism is used to fold the edge of the upper POE film downward and hot press it. The upper connecting mechanism is used to drive the folding mechanism to rise and fall, and the folding mechanism is guided and slidably connected to the intermediate laminating mechanism.

[0018] Further, as a preference, the upper connecting mechanism comprises: a connecting plate, the connecting plate being fixedly connected to the packaging frame;

[0019] A lifting and adjusting cylinder, wherein the lifting and adjusting cylinder is fixed to the connecting plate, and the output end of the lifting and adjusting cylinder is arranged downward;

[0020] A lifting block is fixedly mounted on the output end of the lifting regulating cylinder. The lifting block is a "J"-shaped structure, and the folding and pressing mechanism is arranged on the lifting block.

[0021] Furthermore, preferably, the folding mechanism includes:

[0022] a first side block, the first side block being fixedly mounted on one side of the lifting block;

[0023] a second side block, the second side block being fixedly mounted on the other side of the lifting block, and the first side block and the second side block being arranged parallel and spaced apart;

[0024] A folding and pressing driving shaft, wherein the folding and pressing driving shaft is rotatably supported and connected to the first side block and the second side block, and the folding and pressing driving shaft is located between the first side block and the second side block;

[0025] A folding driver, wherein the folding driver is fixed to the first side block or the second side block, and an output end of the folding driver is connected to the folding drive shaft so as to drive the folding drive shaft to rotate;

[0026] The folding and pressing executing assembly is fixed on the folding and pressing driving shaft so that the folding and pressing executing assembly is driven to rotate by the folding and pressing driving shaft.

[0027] Furthermore, preferably, the folding and pressing execution component includes:

[0028] A folding actuator arm, the end of which is fixedly sleeved on the folding drive shaft by a winding sleeve;

[0029] A folding plate fixed to one side of the folding actuator arm extending around the upper POE film;

[0030] A folding elastic bending strip, which is a bending structure and has elasticity. The folding elastic bending strip is arranged on one side of the extrusion plate toward the peripheral extension portion of the upper POE film, and is used for folding the folded portion of the upper POE film;

[0031] A heater, wherein a mounting interface is provided on the folding actuator arm, and the heater is fixed on the mounting interface. The heater is used to heat the folding plate and the folding elastic bending strip, and the folding plate and the folding elastic bending strip are both made of heat-conducting metal;

[0032] A thermostat is used to control the heating temperature of the heater.

[0033] Further, preferably, the intermediate lamination mechanism includes:

[0034] A lower pressing shaft, the lower pressing shaft being fixed to the output end of the lamination driver and arranged vertically;

[0035] A connecting disk, the upper end of which is coaxially connected to the bottom of the lower pressure shaft;

[0036] A laminated plate, the upper end of which is fixed to the bottom of the connecting plate, wherein vertical sliders are provided on both sides of the four corners of the laminated plate;

[0037] A vertical slide is provided on the first side block of any upper POE film edge folding mechanism and the second side block of the adjacent upper POE film edge folding mechanism, and the vertical slider is slidably matched with the vertical slide.

[0038] Furthermore, preferably, the negative pressure adsorption platform includes:

[0039] A negative pressure workbench, wherein a plurality of negative pressure adsorption holes are provided on the top of the negative pressure workbench, and each negative pressure adsorption hole is connected to a negative pressure air pump;

[0040] A support platform, wherein the top of the support platform and the bottom of the negative pressure workbench are connected by a plurality of densely arranged spring telescopic columns;

[0041] Support slide bars, a plurality of support slide bars are provided at the bottom of the support platform, and the support slide bars are vertically extended;

[0042] A support guide sleeve, the support guide sleeve is fixed on the mounting platform, the support guide sleeve is vertically extended, and the support slide rod is slidably arranged in the support guide sleeve;

[0043] A lifting cylinder is fixed at the bottom center of the mounting platform, and an output end of the lifting cylinder passes through the mounting platform upward and is connected to the support platform to drive the support platform to move up and down;

[0044] The negative pressure workbench is arranged below the square structure surrounded by the first upper POE film edge folding and pressing mechanism, the second upper POE film edge folding and pressing mechanism, the third upper POE film edge folding and pressing mechanism and the fourth upper POE film edge folding and pressing mechanism.

[0045] Compared with the prior art, the present invention provides a perovskite photovoltaic module and its packaging device, which has the following beneficial effects:

[0046] The perovskite photovoltaic module provided by the present invention has the POE film on it, and the extended parts around it can be folded downward and pressed and covered on the edges of the back plate, the bottom POE film, and the battery chip in an integrated manner, which can effectively improve the packaging performance of the photovoltaic module battery and ensure the sealing ability of the edge. The integrated structure of the upper POE film can ensure the sealing performance, and the edges of the rear glass cover are also coated with a side sealing layer, and then a frame is set on the outside, which can effectively improve the sealing and packaging performance, ensure the water-proof and crack-proof capabilities at the laminated edges, and improve the hot pressing and packaging effect.

[0047] In the present invention, a corresponding packaging device for perovskite photovoltaic modules is provided. During packaging, the backboard, bottom POE film, battery chip, upper POE film and glass cover are laminated and pressed together. The first upper POE film edge folding mechanism, the second upper POE film edge folding mechanism, the third upper POE film edge folding mechanism and the fourth upper POE film edge folding mechanism can realize the hot pressing and packaging of the battery cell, and can also realize the adhesive pressing and wrapping of the upper POE film, so that the surrounding extended parts of the upper POE film are folded downward and then adhesively pressed and wrapped around the edges of the backboard, bottom POE film and battery chip in an integrated manner by hot pressing, thereby improving the overall packaging capability and packaging performance.

[0048] In the present invention, while lamination is being carried out, folding and pressing are further carried out. During folding, when the folding driver drives the folding drive shaft to rotate, the folding elastic bending strip first folds the folded part of the upper POE film, and uses the folding plate to hot-press the surrounding extended parts of the bent upper POE film to achieve integrated hot-pressing wrapping. A thermostat is also used to control the temperature to improve the hot-pressing effect. During folding, the elasticity and folding force of the folding elastic bending strip are greater than those of the folding plate, which can ensure the folding effect at the folding part and thus ensure the packaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the main structure of a perovskite photovoltaic module before the extended portion around the upper POE film is folded and pressed;

[0050] Figure 2 This is a schematic diagram of the main structure of a perovskite photovoltaic module after packaging.

[0051] Figure 3 A schematic diagram of the top structure of the POE film on a perovskite photovoltaic module;

[0052] Figure 4 Schematic diagram of the overall structure of a packaging device for a perovskite photovoltaic module;

[0053] Figure 5 This is a schematic diagram of the main structure of a packaging device for a perovskite photovoltaic module;

[0054] Figure 6 for Figure 4 Schematic diagram of the local enlarged structure at A in FIG;

[0055] Figure 7 This is a schematic diagram of the structure of the upper POE film edge folding and pressing mechanism in a packaging device for a perovskite photovoltaic module;

[0056] Figure 8 A partially enlarged structural schematic diagram of a folding mechanism in a packaging device of a perovskite photovoltaic module;

[0057] Figure 9 A schematic structural diagram of an intermediate lamination mechanism in a packaging device for a perovskite photovoltaic module;

[0058] Figure 10 This is a schematic structural diagram of a negative pressure workbench in a packaging device for a perovskite photovoltaic module;

[0059] In the figure: 1. back panel; 2. bottom POE film; 3. battery chip; 4. inner sealing layer; 5. upper POE film; 5', peripheral extension; 6. glass cover; 7. side sealing layer; 8. middle laminating mechanism; 9. first upper POE film edge folding mechanism; 10. second upper POE film edge folding mechanism; 11. third upper POE film edge folding mechanism; 12. fourth upper POE film edge folding mechanism; 13. folding mechanism; 14. vertical slider; 15. laminate; 16. vertical slider Groove; 17. Connecting plate; 18. Lower pressure shaft; 19. Connecting plate; 20. Lifting and adjusting cylinder; 21. First side block; 22. Mounting interface; 23. Folding actuator arm; 24. Folding plate; 25. Roll sleeve; 26. Folding drive shaft; 27. Second side block; 28. Lifting block; 29. ​​Folding elastic bending strip; 30. Mounting table; 31. Spring telescopic column; 32. Negative pressure workbench; 33. Negative pressure workbench; 34. Support table; 35. Support guide sleeve; 36. Support slide bar; 37. Lifting cylinder. DETAILED DESCRIPTION

[0060] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0061] Example 1: Please refer to Figures 1-10 In an embodiment of the present invention, a packaging device for a perovskite photovoltaic module is provided, characterized in that it includes: a backplane 1, a bottom POE film 2, a battery chip 3, an upper POE film 5 and a glass cover plate 6; wherein the backplane 1 and the bottom surface of the battery chip 3 are connected together by the bottom POE film, and the top surface of the battery chip 3 and the glass cover plate 6 are connected together by the upper POE film 5; characterized in that the edges of the battery chip 3 are located between the upper POE film 5 and the bottom POE film 2 and are further coated with an inner sealing adhesive layer 4; and the edges of the upper POE film 5 extend a certain distance from the battery chip, and the extending parts 5' of the upper POE film 5 can be folded downward to be integrally glued and pressed to cover the edges of the backplane 1, the bottom POE film 2 and the battery chip 3; and after the extending parts of the upper POE film 5 are folded and pressed, the lower edge of the folded and pressed part of the upper POE film 5 is flush with the bottom surface of the backplane 1.

[0062] In this embodiment, after the peripheral extension portion 5 ′ of the upper POE film 5 is folded, pressed and coated, a side sealing layer 7 is further coated on the peripheral edges of the glass cover plate, and the lower end of the side sealing layer is sealed against the bend of the upper POE film 5 .

[0063] Among them, as a preferred option, the peripheral extension portion 5 ′ of the upper POE film 5 is folded downward and then integrally bonded and pressed onto the peripheral edges of the back plate 1 , the bottom POE film 2 and the battery chip 3 by means of heat pressing.

[0064] The perovskite photovoltaic module provided by the present invention has the POE film on it, and the extended parts around it can be folded downward and pressed and covered on the edges of the back plate, the bottom POE film, and the battery chip in an integrated manner, which can effectively improve the packaging performance of the photovoltaic module battery and ensure the sealing ability of the edge. The integrated structure of the upper POE film can ensure the sealing performance, and the edges of the rear glass cover are also coated with a side sealing layer, and then a frame is set on the outside, which can effectively improve the sealing and packaging performance, ensure the water-proof and crack-proof capabilities at the laminated edges, and improve the hot pressing and packaging effect.

[0065] Example 2: In this embodiment, a packaging device for a perovskite photovoltaic module is provided, which is used for packaging a perovskite photovoltaic module described in Example 1, characterized in that it is used to laminate the backplane 1, the bottom POE film 2, the battery chip 3, the upper POE film 5 and the glass cover 6 together, and the surrounding extension portion of the upper POE film 5 is folded downward and then adhered and pressed onto the surrounding edges of the backplane 1, the bottom POE film 2 and the battery chip 3 by hot pressing; it includes:

[0066] A negative pressure adsorption platform, which is used to adsorb and fix the back plate 1 so that the bottom POE film 2, the battery chip 3, the upper POE film 5 and the glass cover 6 are sequentially stacked on the back plate;

[0067] An intermediate laminating mechanism 8, which is used to laminate and press the backplane 1, the bottom POE film 2, the battery chip 3, the upper POE film 5 and the glass cover 6 together;

[0068] A first upper POE film edge folding and pressing mechanism 9, which is arranged on the side of the intermediate laminating mechanism and is used to fold the first edge of the upper POE film downward and hot press it;

[0069] A second upper POE film edge folding and pressing mechanism 10, which is arranged on the side of the intermediate laminating mechanism and is used to fold the second edge of the upper POE film downward and heat-press it;

[0070] The third upper POE film edge folding and pressing mechanism 11 is arranged on the side of the intermediate laminating mechanism, and is used to fold the third edge of the upper POE film downward and heat press it;

[0071] The fourth upper POE film edge folding and pressing mechanism 12 is arranged on the side of the intermediate laminating mechanism, and is used to fold the fourth edge of the upper POE film downward and heat press it; wherein;

[0072] The first upper POE film edge folding and pressing mechanism 9 is arranged opposite to the third upper POE film edge folding and pressing mechanism 11, and the second upper POE film edge folding and pressing mechanism 10 is arranged opposite to the fourth upper POE film edge folding and pressing mechanism 12. The first upper POE film edge folding and pressing mechanism 9, the second upper POE film edge folding and pressing mechanism 10, the third upper POE film edge folding and pressing mechanism 11 and the fourth upper POE film edge folding and pressing mechanism 12 are arranged in a square structure;

[0073] The first side of the upper POE film is parallel to the third side of the upper POE film, and the second side of the upper POE film is parallel to the fourth side of the upper POE film; the first side of the upper POE film is perpendicular to the second side of the upper POE film.

[0074] Among them, the first upper POE film edge folding mechanism 9, the second upper POE film edge folding mechanism 10, the third upper POE film edge folding mechanism 11 and the fourth upper POE film edge folding mechanism 12 have the same structure, all including an upper connecting mechanism and a folding mechanism 13. The upper connecting mechanism is arranged on the packaging frame, and the lower end of the upper connecting mechanism is provided with the folding mechanism 13. The folding mechanism 13 is used to fold the edge of the upper POE film downward and hot press it. The upper connecting mechanism is used to drive the folding mechanism to rise and fall, and the folding mechanism 13 is guided and slidably connected to the intermediate laminating mechanism 8.

[0075] Example 3: The difference from Example 2 is that the upper connecting mechanism includes: a connecting plate 19, which is fixedly connected to the packaging frame;

[0076] A lifting and adjusting cylinder 20, which is fixed to the connecting plate, with the output end of the lifting and adjusting cylinder facing downward;

[0077] The lifting block 28 is fixedly mounted on the output end of the lifting regulating cylinder. The lifting block is a "J"-shaped structure. The folding and pressing mechanism 13 is arranged on the lifting block.

[0078] In this embodiment, the folding mechanism 13 includes:

[0079] A first side block 21, which is fixedly mounted on one side of the lifting block;

[0080] A second side block 27, the second side block 27 is fixedly mounted on the other side of the lifting block, and the first side block and the second side block are arranged parallel to each other and spaced apart;

[0081] A folding and pressing driving shaft 26, wherein the folding and pressing driving shaft 26 is rotatably supported and connected to the first side block and the second side block, and the folding and pressing driving shaft is located between the first side block and the second side block;

[0082] A folding driver, the folding driver is fixed to the first side block or the second side block, and the output end of the folding driver is connected to the folding drive shaft to drive the folding drive shaft 26 to rotate;

[0083] The folding execution component is fixed on the folding drive shaft so that the folding execution component is driven to rotate by the folding drive shaft 26.

[0084] Wherein, the folding and pressing execution component includes:

[0085] A folding actuator arm 23, the end of which is fixedly sleeved on the folding drive shaft 26 by a sleeve 25;

[0086] A folding plate 24, the folding plate 24 is fixed to one side of the folding actuator arm 23, which faces the peripheral extension portion 5' of the upper POE film;

[0087] The folding elastic bending strip 29 is a bending structure, and the folding elastic bending strip 29 is elastic. The folding elastic bending strip 29 is arranged on the side of the extrusion plate toward the peripheral extension portion 5' of the upper POE film, and the folding elastic bending strip 29 is used for folding the bend of the upper POE film;

[0088] A heater is provided on the folding actuator arm 23 with a mounting interface 22, and the heater is fixed on the mounting interface 22. The heater is used to heat the folding plate 24 and the folding elastic bending strip 29, and the folding plate 24 and the folding elastic bending strip 29 are both made of heat-conducting metal;

[0089] A thermostat is used to control the heating temperature of the heater.

[0090] Embodiment 4: The difference from Embodiment 3 is that, in this embodiment, the intermediate laminating mechanism 8 includes:

[0091] A lower pressing shaft 18, which is fixed to the output end of the lamination driver and arranged vertically;

[0092] A connecting disk 17, the upper end of which is coaxially connected to the bottom of the lower pressure shaft;

[0093] A laminate 15, the upper end of which is fixed to the bottom of the connection plate, wherein vertical sliders 14 are provided on both sides of the four corners of the laminate 15;

[0094] A vertical slide groove is provided on the first side block of any upper POE film edge folding mechanism and the second side block of the adjacent upper POE film edge folding mechanism, and the vertical slider is slidably matched with the vertical slide groove 16.

[0095] The negative pressure adsorption platform comprises:

[0096] A negative pressure workbench 32, the top of which is provided with a plurality of negative pressure adsorption holes 33, each of which is connected to a negative pressure air pump;

[0097] A support platform 34, the top of which is connected to the bottom of the negative pressure workbench by a plurality of densely arranged spring telescopic columns 31;

[0098] Support slide bars 36 , a plurality of support slide bars 36 are provided at the bottom of the support platform 34 , and the support slide bars are vertically extended;

[0099] A support guide sleeve 35 is fixed on the mounting platform 30. The support guide sleeve extends vertically, and the support slide rod slides up and down through the support guide sleeve.

[0100] A lifting cylinder 37 is fixed at the bottom center of the mounting platform. The output end of the lifting cylinder passes through the mounting platform upward and is connected to the support platform to drive the support platform to move up and down;

[0101] The negative pressure workbench 32 is arranged below the square structure surrounded by the first upper POE film edge folding and pressing mechanism 9, the second upper POE film edge folding and pressing mechanism 10, the third upper POE film edge folding and pressing mechanism 11 and the fourth upper POE film edge folding and pressing mechanism 12.

[0102] When the packaging device of the present invention is packaged, the brief process is as follows: the back plate 1, the bottom POE film 2, the battery chip 3, the upper POE film 5 and the glass cover plate 6 are stacked together. When positioning and stacking, the back plate is adsorbed and fixed by a negative pressure adsorption workbench. Before lamination, the negative pressure suction equipment on the workbench is used to perform vacuum treatment from all sides of the stack to ensure the stability and flatness after lamination. During lamination, the middle laminating mechanism 8 is first used to press down to achieve preliminary lamination of the back plate 1, the bottom POE film 2, the battery chip 3, the upper POE film 5 and the glass cover plate 6. After the preliminary lamination, the first upper POE film edge folding mechanism 9, the second upper POE film edge folding mechanism 10, and the third upper POE film edge folding mechanism are synchronously started. The mechanism 11 and the fourth upper POE film edge folding mechanism 12 enable the lifting and adjusting cylinder 20 to drive the folding mechanism 13 to move downward to the appropriate folding position, and the folding driver drives the folding drive shaft 26 to rotate, thereby driving the folding execution arm 23, the folding plate 24 and the folding elastic bending strip 29 to fold. The temperature of the folding execution arm 23, the folding plate 24 and the folding elastic bending strip 29 is controlled by the heater and the temperature controller. When the folding drive shaft 26 rotates and folds, the folding elastic bending strip 29 first folds the folding part of the upper POE film, and then the folding plate 24 performs subsequent folding operations. During this process, the folding force of the folding elastic bending strip 29 is relatively large, which can ensure the pressing ability of the bending part, and thus ensure the overall packaging performance. After the folding is completed, the intermediate laminating mechanism 8 is further pressed down to complete the subsequent final pressing effect to ensure the lamination effect of the entire package. Then, the edge sealing layer 7 is applied to the edges of the glass cover plate, and the frame is clamped at the edges to complete the entire packaging process.

[0103] In the present invention, a corresponding packaging device for perovskite photovoltaic modules is provided. During packaging, the backboard, bottom POE film, battery chip, upper POE film and glass cover are laminated and pressed together. The first upper POE film edge folding mechanism, the second upper POE film edge folding mechanism, the third upper POE film edge folding mechanism and the fourth upper POE film edge folding mechanism can realize the hot pressing and packaging of the battery cell, and can also realize the adhesive pressing and wrapping of the upper POE film, so that the surrounding extended parts of the upper POE film are folded downward and then adhesively pressed and wrapped around the edges of the backboard, bottom POE film and battery chip in an integrated manner by hot pressing, thereby improving the overall packaging capability and packaging performance. The present invention performs folding and covering at the same time as lamination. During folding, when the folding driver drives the folding drive shaft to rotate, the folding elastic bending strip first folds the folded part of the upper POE film, and uses the folding plate to hot-press the surrounding extended parts of the bent upper POE film to achieve integrated hot-pressing covering. In addition, a thermostat is used to control the temperature to improve the hot-pressing effect. During folding, the elasticity and folding force of the folding elastic bending strip are greater than those of the folding plate, which can ensure the folding effect at the folding part and thus ensure the packaging effect.

[0104] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A packaging device for a perovskite photovoltaic module, which is used for packaging a perovskite photovoltaic module, and is used to laminate and press a backboard (1), a bottom POE film (2), a battery chip (3), an upper POE film (5) and a glass cover (6) together, and fold the peripheral extension portion of the upper POE film (5) downward and then adhere and press it around the edges of the backboard (1), the bottom POE film (2) and the battery chip (3) in a hot pressing manner; characterized in that, include: A negative pressure adsorption platform, the negative pressure adsorption platform is used to adsorb and fix the back plate (1) so as to stack the bottom POE adhesive film (2), the battery chip (3), the upper POE adhesive film (5) and the glass cover plate (6) on the back plate in sequence; An intermediate laminating mechanism (8), the intermediate laminating mechanism (8) being used to laminate and press the back plate (1), the bottom POE adhesive film (2), the battery chip (3), the upper POE adhesive film (5) and the glass cover plate (6) together; A first upper POE film edge folding mechanism (9), a second upper POE film edge folding mechanism (10), a third upper POE film edge folding mechanism (11), and a fourth upper POE film edge folding mechanism (12) are respectively arranged on four sides of the intermediate laminating mechanism and are respectively used to fold the first side, the second side, the third side, and the fourth side of the upper POE film downwards and perform heat pressing; The first upper POE film edge folding mechanism (9) is arranged opposite to the third upper POE film edge folding mechanism (11), and the second upper POE film edge folding mechanism (10) is arranged opposite to the fourth upper POE film edge folding mechanism (12). The first side of the upper POE film is parallel to the third side of the upper POE film, and the second side of the upper POE film is parallel to the fourth side of the upper POE film; the first side of the upper POE film is perpendicular to the second side of the upper POE film; The first upper POE film edge folding mechanism (9), the second upper POE film edge folding mechanism (10), the third upper POE film edge folding mechanism (11) and the fourth upper POE film edge folding mechanism (12) have the same structure and all include a folding mechanism (13). The folding mechanism (13) is used to fold the edge of the upper POE film downward and perform heat pressing. The folding mechanism (13) includes a folding drive shaft (26) and a folding execution component. The folding execution component is fixed on the folding drive shaft (26) so that the folding execution component is driven to rotate by the folding drive shaft (26). The folding and pressing execution component includes: A folding and pressing executing arm (23), the end of which is fixedly sleeved on the folding and pressing driving shaft (26) by a coil sleeve (25); A folding plate (24), the folding plate (24) being fixed to one side of the folding actuator arm (23) facing the peripheral extension portion (5') of the upper POE film; A folding elastic bending strip (29), the folding elastic bending strip (29) is a bending structure, and the folding elastic bending strip (29) is elastic, the folding elastic bending strip (29) is arranged on the folding plate on one side of the peripheral extension portion (5') of the upper POE film, and the folding elastic bending strip (29) is used for folding the folded portion of the upper POE film.

2. The packaging device of a perovskite photovoltaic module according to claim 1, characterized in that: The first upper POE film edge folding mechanism (9), the second upper POE film edge folding mechanism (10), the third upper POE film edge folding mechanism (11) and the fourth upper POE film edge folding mechanism (12) are arranged in a square structure.

3. The packaging device of a perovskite photovoltaic module according to claim 1, characterized in that: The first upper POE film edge folding mechanism (9), the second upper POE film edge folding mechanism (10), the third upper POE film edge folding mechanism (11) and the fourth upper POE film edge folding mechanism (12) all further include an upper connecting mechanism, wherein the upper connecting mechanism is arranged on the packaging frame, and the folding mechanism (13) is arranged at the lower end of the upper connecting mechanism. The upper connecting mechanism is used to drive the folding mechanism to rise and fall, and the folding mechanism (13) is connected to the intermediate laminating mechanism (8) by a guide sliding connection.

4. The packaging device of a perovskite photovoltaic module according to claim 3, characterized in that: The upper connecting mechanism comprises: a connecting plate (19), the connecting plate being fixedly connected to the packaging frame; A lifting and adjusting cylinder (20), the lifting and adjusting cylinder being fixed on the connecting plate, with the output end of the lifting and adjusting cylinder being arranged downward; A lifting block (28) is fixedly mounted on the output end of the lifting regulating cylinder, the lifting block is a "J"-shaped structure, and the folding and pressing mechanism (13) is arranged on the lifting block.

5. The packaging device of a perovskite photovoltaic module according to claim 4, characterized in that: The folding and pressing mechanism (13) further comprises: A first side block (21), the first side block (21) being fixedly mounted on one side of the lifting block; A second side block (27), the second side block (27) is fixedly mounted on the other side of the lifting block, and the first side block and the second side block are arranged parallel and spaced apart; A folding drive, wherein the folding drive shaft (26) is rotatably supported and connected to the first side block and the second side block, and the folding drive shaft is located between the first side block and the second side block, the folding drive is fixed to the first side block or the second side block, and the output end of the folding drive is connected to the folding drive shaft to drive the folding drive shaft (26) to rotate.

6. The packaging device of a perovskite photovoltaic module according to claim 1, characterized in that: The folding and pressing execution component also includes: A heater, wherein a mounting interface (22) is provided on the folding execution arm (23), and the heater is fixed on the mounting interface (22). The heater is used to heat the folding plate (24) and the folding elastic bending strip (29), and the folding plate (24) and the folding elastic bending strip (29) are both made of heat-conducting metal; A thermostat is used to control the heating temperature of the heater.

7. The packaging device of a perovskite photovoltaic module according to claim 1, characterized in that: The intermediate laminating mechanism (8) comprises: A lower pressing shaft (18), the lower pressing shaft (18) is fixed to the output end of the lamination driver, and the lower pressing shaft is arranged vertically; A connecting disk (17), the upper end of which is coaxially connected to the bottom of the lower pressure shaft; A laminate (15), the upper end of the laminate (15) being fixed to the bottom of the connection plate, wherein vertical sliders (14) are provided on both sides of the four corners of the laminate (15); A vertical slide is provided on the first side block of any upper POE film edge folding mechanism and the second side block of the adjacent upper POE film edge folding mechanism, and the vertical slider is slidably matched with the vertical slide.

8. The packaging device of a perovskite photovoltaic module according to claim 1, characterized in that: The negative pressure adsorption platform comprises: A negative pressure workbench (32), wherein a plurality of negative pressure adsorption holes (33) are provided on the top of the negative pressure workbench, and each negative pressure adsorption hole is connected to a negative pressure air pump; A support platform (34), wherein the top of the support platform (34) and the bottom of the negative pressure workbench are connected by a plurality of densely arranged spring telescopic columns (31); Support slide bars (36), a plurality of support slide bars (36) are provided at the bottom of the support platform (34), and the support slide bars are vertically extended; A support guide sleeve (35), the support guide sleeve is fixed on the mounting platform (30), the support guide sleeve is vertically extended, and the support slide rod is slidably arranged in the support guide sleeve; A lifting cylinder (37), the lifting cylinder (37) is fixed at the bottom center of the mounting platform, and the output end of the lifting cylinder passes through the mounting platform upward and is connected to the support platform to drive the support platform to move up and down; The negative pressure workbench 32 is arranged below the square structure surrounded by the first upper POE film edge folding and pressing mechanism (9), the second upper POE film edge folding and pressing mechanism (10), the third upper POE film edge folding and pressing mechanism (11) and the fourth upper POE film edge folding and pressing mechanism (12).

9. A perovskite photovoltaic module, encapsulated using the encapsulation device according to any one of claims 1 to 8. It is characterized by: include: A backplane (1), a bottom POE film (2), a battery chip (3), an upper POE film (5) and a glass cover (6); wherein the backplane (1) and the bottom surface of the battery chip (3) are connected together by the bottom POE film, and the top surface of the battery chip (3) and the glass cover (6) are connected together by the upper POE film (5); characterized in that the edges of the battery chip (3) are located between the upper POE film (5) and the bottom POE film (2) and are also coated with It is covered with an inner sealing adhesive layer (4); and the four sides of the upper POE adhesive film (5) extend a certain distance from the battery chip, and the four sides of the extended portion (5') of the upper POE adhesive film (5) can be integrally pressed and covered on the four sides of the back plate (1), the bottom POE adhesive film (2), and the battery chip (3) after being folded downward; and after the four sides of the extended portion of the upper POE adhesive film (5) are folded, pressed and covered, the lower edge of the folded, pressed and covered portion of the upper POE adhesive film (5) is flush with the bottom surface of the back plate (1).

10. The perovskite photovoltaic module according to claim 9, characterized in that: After the peripheral extension portions (5') of the upper POE film (5) are folded, pressed and coated, the peripheral edges of the glass cover are coated with an edge sealing layer (7), and the lower end of the edge sealing layer is sealed against the bend of the upper POE film (5).

11. The perovskite photovoltaic module according to claim 9, characterized in that: The peripheral extension parts (5') of the upper POE adhesive film (5) are folded downwards and then integrally bonded and pressed onto the peripheral edges of the back plate (1), the bottom POE adhesive film (2), and the battery chip (3) by means of heat pressing.

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