Roll-to-roll annealing equipment
By setting up a multi-layered annular structure with cooling and heating chambers in the roll-to-roll annealing equipment, the problems of large equipment footprint and slow production cycle are solved, achieving efficient annealing and cooling of perovskite solar panels and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing roll-to-roll annealing equipment has a large footprint and slow production cycle when producing flexible perovskite solar panels, which cannot meet the needs of high-efficiency production.
Design a roll-to-roll annealing equipment. By setting a cooling chamber inside the heating chamber, using a multi-layered annular baffle to form the heating and cooling chambers, guide rollers to control the movement of the solar panels, and equipped with a temperature control and atmosphere control system, the space utilization rate and production efficiency can be improved.
It effectively saves equipment floor space, increases production cycle time, achieves efficient annealing and cooling of perovskite solar panels, adapts to the connection of different equipment, and improves production efficiency.
Smart Images
Figure CN224098085U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to solar cell technical field especially relates to a roll to roll annealing equipment. BACKGROUND
[0002] The development of photovoltaic technology is widely valued by countries around the world. As a new type of solar cell, perovskite solar cell has attracted great attention in the photovoltaic field due to its high energy conversion efficiency, low cost, low-temperature preparation, and flexible component preparation.
[0003] Lightweight flexible perovskite solar cells have broad prospects in the construction of integrated photovoltaic, wearable electronic, portable energy systems, and aerospace applications. Flexible perovskite solar modules can be quickly produced through a roll-to-roll process, enabling the industrial application of perovskite solar panels. For different types of functional layers of perovskite solar panels, such as titanium oxide layers, nickel oxide layers, and various oxide functional layers, uniform annealing is required through a roll-to-roll process, and even annealing under a protective atmosphere. Currently, the commonly used annealing equipment can only match the production speed of the previous process by continuously increasing the number of furnace bodies, which severely restricts the production rhythm of the battery or the land area occupied by the annealing equipment, which is very wide, and is very detrimental to the layout of the production line and the actual production efficiency. SUMMARY
[0004] Therefore, the present application provides a roll-to-roll annealing equipment, which saves a certain space by setting a cooling chamber inside a heating chamber.
[0005] According to one aspect of the present application, a roll-to-roll annealing equipment is provided, which is suitable for processing the production of flexible perovskite solar panels, comprising a base, a first baffle, a second baffle, and a winding mechanism. The base is in a trapezoidal structure, and an arc-shaped groove is formed on the base. The first baffle is in a ring structure and is arranged on the trapezoidal structure of the base, with the bottom of the first baffle being attached to the groove. The second baffle is also in a ring structure, and the second baffle is arranged inside the first baffle, forming a heating chamber between the first baffle and the second baffle. The second baffle is a cooling chamber. The winding mechanism is arranged inside the second baffle. Through channels are formed on the first baffle and the second baffle, which are suitable for perovskite solar panels to pass through.
[0006] In one possible implementation, a guide roller is further included, which is arranged inside the heating chamber and the cooling chamber.
[0007] In a possible implementation, the number of the guide rollers in the heating chamber is multiple, and the guide rollers in the heating chamber are arranged in a surrounding manner from the inner side of the first baffle to the outer side of the second baffle.
[0008] In a possible implementation, the number of the guide rollers in the cooling chamber is multiple, and the guide rollers in the cooling chamber are arranged in a surrounding manner from the inner side of the second baffle to the position of the winding mechanism.
[0009] In a possible implementation, the number of the guide rollers in the heating chamber is one, and the number of the guide rollers in the cooling chamber is two.
[0010] In a possible implementation, the device further comprises a winding-off mechanism, which is detachably arranged at the bottom of the heating chamber.
[0011] In a possible implementation, the device further comprises a third baffle, the diameter of the third baffle is smaller than that of the second baffle, the third baffle is also provided with a through channel, the third baffle is arranged inside the second baffle and outside the winding mechanism.
[0012] In a possible implementation, one of the guide rollers is arranged inside the third baffle.
[0013] In a possible implementation, the inner side of the first baffle and the inner side of the second baffle are both provided with a temperature control system and an atmosphere control system; the temperature control system comprises a temperature control meter, a solid-state relay, a heating element and a thermocouple group; and the atmosphere control system comprises a vacuum gauge and a gas charging and discharging pipeline.
[0014] In a possible implementation, the first baffle, the second baffle and the third baffle are in a rectangular ring structure or a circular ring structure.
[0015] The beneficial effects of this utility model are as follows: By setting a base, a first partition plate, a second partition plate, and a winding mechanism; the base has a trapezoidal structure with an arc-shaped groove, primarily used to fix the first partition plate; the first partition plate has an annular structure, with its lower half positioned within the arc-shaped groove for fixation; the second partition plate also has an annular structure, but its diameter is smaller than that of the first partition plate, and it is fitted inside the first partition plate, with a certain distance between the outer periphery of the second partition plate and the inner periphery of the first partition plate. This arrangement ensures proper contact between the first and second partition plates. The first and second partitions form a heating chamber and a cooling chamber. Through-passages are provided on both the first and second partitions, allowing perovskite wires to pass through the first partition into the heating chamber for annealing and then through the second partition into the cooling chamber for cooling. A winding mechanism is rotatably positioned at the center of the second partition for winding the perovskite solar panel. This application, through the above configuration, places the second partition within the first partition, creating a multi-layered ring structure. The cooling and heating chambers are in the same space, saving space on the test bench and improving space utilization. Attached Figure Description
[0016] Figure 1 A schematic diagram of the specific structure of the roll-to-roll annealing apparatus according to an embodiment of this application is shown. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model or simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," and "hinged" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] like Figure 1 As shown, the roll-to-roll annealing equipment includes a base 600, a first partition plate 110, a second partition plate 120, and a winding mechanism 520. The base 600 has a trapezoidal structure and an arc-shaped groove. The first partition plate 110 has an annular structure and is disposed on the trapezoidal structure of the base 600, with its bottom 600 fitting into the groove. The second partition plate 120 also has an annular structure and is fitted inside the first partition plate 110, forming a heating chamber between the first partition plate 110 and the second partition plate 120, while the interior of the second partition plate 120 is a cooling chamber. The winding mechanism 520 is disposed inside the second partition plate 120. Both the first partition plate 110 and the second partition plate 120 have through channels suitable for perovskite solar panels to pass through.
[0023] Specifically, the first baffle 110 and the second baffle 120 are configured to form two independent chambers. Both the first baffle 110 and the second baffle 120 are annular structures, forming a multi-layered annular structure. The annular shape of the first baffle 110 and the second baffle 120 is designed to save space and facilitate the winding of the perovskite solar panel. The diameter of the second baffle 120 is smaller than that of the first baffle 110, and the second baffle 120 is located inside the first baffle 110. A heating chamber 300 is formed between the first baffle 110 and the second baffle 120, which provides a relatively large space for the heating chamber 300. The interior of the second baffle 120 is a cooling chamber. The winding mechanism 520 is rotatably positioned at the center of the third baffle 130 and is suitable for winding the perovskite solar panel after cooling.
[0024] In one possible implementation, a guide roller 200 is also included, which is disposed within the heating chamber 300 and the cooling chamber 400.
[0025] Multiple guide rollers 200 are provided, and the guide rollers 200 are provided in the heating chamber 300 and the cooling chamber 400. The purpose of providing guide rollers 200 is to control the direction of the perovskite solar panel and drive the perovskite solar panel to move.
[0026] In one possible implementation, the guide roller 200 disposed in the heating chamber 300 is arranged in a circumferential manner from the inside of the first partition 110 to the outside of the second partition 120; the guide roller 200 disposed in the cooling chamber 400 is arranged in a circumferential manner from the inside of the second partition 120 to the position of the winding mechanism 520.
[0027] Specifically, such as Figure 1 As shown, in order to ensure that the perovskite solar panel can smoothly enter the heating chamber 300 for annealing and then enter the cooling chamber 400 for cooling, the guide roller 200 is positioned as follows: Figure 1 As shown, with Figure 1 Taking the orientation of the guide roller 200 as an example, but not limited to this embodiment, the guide roller 200 starts from the inside of the first partition plate 110 and from the right side of the unwinding mechanism. Each time a new guide roller 200 is set, it moves slightly closer to the outer periphery of the second partition plate 120. When the guide roller 200 is positioned to the left of the second partition plate 120, the setting of the guide rollers 200 in the heating chamber 300 is complete; the setting of the guide rollers 200 in the cooling chamber 400 is as follows... Figure 1 As shown, the guide rollers 200 gradually approach the outer periphery of the winding mechanism 520 as each new guide roller 200 is set from the inner side of the second partition plate 120. The guide rollers 200 are arranged around the inner side of the second partition plate 120 until the arrangement of the guide rollers 200 in the cooling chamber 400 is completed on the left side of the winding device 520. All guide rollers 200 have the same speed, which makes the perovskite solar panel move rapidly.
[0028] In one possible implementation, the guide roller 100 of the heating chamber 300 has one rotation; the guide roller 100 of the cooling chamber 400 has two rotations.
[0029] Specifically, such as Figure 1As shown in the figure, the diameter of the heating chamber 300 is larger than that of the cooling chamber 400. Therefore, the circumference of the heating chamber 300 is longer than that of the cooling chamber. Consequently, the guide roller 100 of the heating chamber 300 has one rotation, while the guide roller 100 of the cooling chamber 400 has two rotations. This ensures that the perovskite solar panel spends a sufficient amount of time in the cooling chamber 400, resulting in better cooling of the perovskite solar panel.
[0030] In one possible implementation, an unwinding mechanism 510 is also included, which is detachably disposed at the bottom of the heating chamber 300.
[0031] Specifically, such as Figure 1 As shown, the unwinding mechanism 510 is rotatably and detachably disposed at the bottom of the heating chamber 300, and is suitable for unwinding the perovskite solar panel to be annealed.
[0032] In one possible implementation, a third baffle 130 is also included. The diameter of the third baffle 130 is smaller than that of the second baffle 120. The third baffle 130 is also provided with a through channel. The third baffle 130 is located inside the second baffle 120 and outside the winding mechanism 520.
[0033] Specifically, such as Figure 1 As shown, to make the whole structure more complete, the winding mechanism 520 and the cooling chamber 400 are separated. A third partition plate 130 is provided inside the second partition plate 120. The second partition plate 120 and the third partition plate 130 are directly pressed to form the cooling chamber 400. The winding mechanism 520 is located inside the third partition plate 130, and a through channel is also provided on the third partition plate 130 to facilitate the perovskite solar panel to pass through the third partition plate 130 and enter the winding mechanism 520.
[0034] In one possible implementation, a guide roller 200 is disposed inside the third baffle 130.
[0035] Specifically, such as Figure 1 As shown, one of the guide rollers 200 is located inside the third baffle 130 and outside the winding mechanism 520, facilitating the introduction of the perovskite solar panel into the winding mechanism 520.
[0036] In one possible implementation, a temperature control system and an atmosphere control system are provided on the inner side of the first baffle 110 and the inner side of the second baffle 120; the temperature control system includes a temperature controller, a solid-state relay, a heating element and a thermocouple assembly; the atmosphere control system includes a vacuum gauge and a charging / discharging pipeline.
[0037] Specifically, the temperature control system and atmosphere control system are set up to ensure the temperature uniformity and annealing atmosphere environment of the film during the annealing process.
[0038] In one possible implementation, the first baffle 110, the second baffle 120, and the third baffle 130 may also be rectangular ring structures.
[0039] Specifically, such as Figure 1 As shown, the first baffle 110, the second baffle 120 and the third baffle 130 are not only circular ring structures, but can also be rectangular ring structures, as long as the whole can be a multi-layered ring structure.
[0040] In use of this application, the unwinding mechanism 510 is first installed in a suitable position according to the actual situation. The perovskite solar panel is then unwound through the unwinding mechanism 510 and guided by the guide roller 200. The thin film side of the perovskite solar panel does not contact the guide roller 200. Through the transmission of the guide roller 200, the perovskite solar panel is driven at a constant speed through the heating chamber 300 and the cooling chamber 400 for annealing, and finally reaches the winding mechanism 520.
[0041] This application employs a first baffle 110 and a second baffle 120 to form two independent chambers. A heating chamber 300 is formed between the first baffle 110 and the second baffle 120, while the interior of the second baffle 120 is a cooling chamber. Both the first baffle 110 and the second baffle 120 are annular structures, with the second baffle 120 positioned inside the first baffle 110, creating a multi-layered annular structure to save space and facilitate the winding of the perovskite solar panel. Multiple guide rollers 200 are provided, positioned within both the heating chamber 300 and the cooling chamber 400. These guide rollers allow for both direction control and movement of the perovskite solar panel. An unwinding mechanism 510 releases the perovskite solar panel to be annealed and cooled. A winding mechanism 520 rewinds the perovskite solar panel after cooling.
[0042] The guide rollers 100 of the cooling chamber 400 have two rotations, allowing the perovskite solar panels to remain in the cooling chamber 400 for a sufficient period of time. A third partition 130 is installed inside the second partition 120 to make the overall structure more complete. Through the above design, this application not only saves space on the experimental platform and improves space utilization, but also adapts to different connecting equipment, making it more practical. It solves the technical problem that annealing equipment can only match the production speed of the previous process by continuously increasing the number of furnaces, which would seriously restrict the production cycle of batteries or require a very large footprint for annealing equipment.
[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A roll-to-roll annealing apparatus, suitable for processing flexible perovskite solar panels during production, characterized in that, It includes a base, a first baffle, a second baffle, and a winding mechanism; The base has a trapezoidal structure and an arc-shaped groove is provided on the base; The first baffle is an annular structure, disposed on the trapezoidal structure of the base, with its bottom fitting into the groove; The second baffle is also a ring structure, and the second baffle is sleeved inside the first baffle. A heating chamber is formed between the first baffle and the second baffle, and the interior of the second baffle is a cooling chamber. The winding mechanism is located inside the second baffle plate; Both the first and second baffles are provided with through channels, which are suitable for perovskite solar panels to pass through.
2. The roll-to-roll annealing apparatus according to claim 1, characterized in that, It also includes guide rollers disposed in the heating chamber and the cooling chamber.
3. The roll-to-roll annealing apparatus according to claim 2, characterized in that, The number of guide rollers provided in the heating chamber is multiple, and the guide rollers in the heating chamber are arranged in a circumferential manner from the inside of the first baffle to the outside of the second baffle.
4. The roll-to-roll annealing apparatus according to claim 2, characterized in that, The cooling chamber is provided with a plurality of guide rollers, which are arranged in a circumferential manner from the inside of the second baffle towards the position of the winding mechanism.
5. The roll-to-roll annealing apparatus according to claim 4, characterized in that, The guide roller in the heating chamber has one revolution. The guide rollers in the cooling chamber have two rotations.
6. The roll-to-roll annealing apparatus according to claim 5, characterized in that, It also includes an unwinding mechanism, which is detachably disposed at the bottom of the heating chamber.
7. The roll-to-roll annealing apparatus according to claim 6, characterized in that, It also includes a third baffle plate, the diameter of which is smaller than that of the second baffle plate. The third baffle plate is also provided with a through channel. The third baffle plate is located inside the second baffle plate and outside the winding mechanism.
8. The roll-to-roll annealing apparatus according to claim 7, characterized in that, One of the guide rollers is disposed inside the third baffle.
9. The roll-to-roll annealing apparatus according to claim 8, characterized in that, A temperature control system and an atmosphere control system are provided on the inner side of both the first baffle and the inner side of the second baffle. The temperature control system includes a temperature controller, a solid-state relay, a heating element, and a thermocouple assembly; The atmosphere control system includes a vacuum gauge and charging / discharging lines.
10. The roll-to-roll annealing apparatus according to claim 7, characterized in that, The first baffle, the second baffle, and the third baffle are rectangular ring structures or circular ring structures.