Curing equipment and photovoltaic cell production line

Abstract

The embodiment of the utility model provides curing equipment and a photovoltaic cell production line. The curing equipment comprises a shell and a light source assembly. The shell comprises a first top plate, a bottom plate and side walls. A containing groove is formed by the bottom plate and the side wall, and liquid with the target temperature is contained in the containing groove; the first top plate covers the accommodating groove; the first top plate is used for bearing a to-be-cured laminated piece. According to the embodiment of the invention, the liquid with the target temperature is contained in the containing groove, so that the liquid with the target temperature conducts heat to the first top plate, and the heat of the first top plate is transferred to the laminated piece; wherein the heat conduction medium of the accommodating groove is liquid, and based on the liquidity of the liquid, the uniform heat of a plurality of positions in the first top plate can be ensured, so that the adhesive films at a plurality of different positions in the laminated part are subjected to the same degree of cross-linking reaction, and the uniform curing is further realized.

Description

Technical Field

[0001] The present application relates to the technical fields of photovoltaic cell preparation and mechanical equipment, and in particular to a curing device. Background Art

[0002] Photovoltaic cells are usually encapsulated with film and glass to improve their ability to resist external environments such as wind, cold, UV damage or mechanical damage, and ensure stable and long-term power generation of photovoltaic cells.

[0003] The packaging of photovoltaic cells includes: laminating the photovoltaic cells, film and glass stacked in sequence to form a laminate with an integral structure; and curing the laminate to ensure uniform and strong adhesion between the photovoltaic cells, film and glass.

[0004] In existing curing equipment, the laminate is heated by a heating wire to cure the laminate, but the uniformity of the heating is difficult to control, resulting in uneven curing effect.

[0005] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the Invention

[0006] The embodiments of the present application provide a curing device and a photovoltaic cell production line to solve or alleviate one or more technical problems raised above.

[0007] As a first aspect of an embodiment of the present application, an embodiment of the present application provides a curing device, comprising:

[0008] The shell includes a first top plate, a bottom plate and side walls; the bottom plate and the side walls form a receiving groove, and the receiving groove contains liquid at a target temperature; the first top plate covers the upper part of the receiving groove; the first top plate is used to carry the laminate to be cured.

[0009] In one embodiment, the curing device further includes a light source assembly, which is located above the first top plate and emits light to illuminate the upper surface of the first top plate.

[0010] In one embodiment, the number of the accommodating groove is one; the shape of the first top plate is adapted to the shape of the bottom plate, and the size of the first top plate is 100% to 200% of the size of the bottom plate, and the bottom plate is arranged near the center of the first top plate.

[0011] In one embodiment, there are a plurality of receiving grooves, the shape of the bottom plate is adapted to the shape of the laminate, and the size of the bottom plate is adapted to the size of the laminate.

[0012] In one embodiment, the shell further includes a second top plate, which covers the opening of the accommodating groove and is fixedly connected to the side wall; the first top plate covers the top of the second top plate.

[0013] In one embodiment, the side wall is fixedly connected or movably connected to the first top plate.

[0014] In one embodiment, the upper surface of the first top plate is provided with area markings that match the shape of the bottom plate.

[0015] In one embodiment, the light source assembly includes at least one light source group, where one light source group corresponds to one area marking setting; one light source group includes at least one light emitting device, which is used to provide a light source.

[0016] In one embodiment, the height of the side walls is 5-20 cm.

[0017] In one embodiment, the holding tank is provided with a liquid inlet and a liquid outlet; the liquid at the target temperature enters the holding tank from the liquid inlet and flows out from the liquid outlet.

[0018] In one embodiment, a flow channel is provided in the receiving tank, and the flow channel includes an S-shaped flow channel or a Y-shaped flow channel.

[0019] In one embodiment, a heating device is further included, and the heating device is located below the bottom plate and is used to heat the bottom plate.

[0020] In one embodiment, a temperature sensor is further included, which is used to detect the temperature of the liquid so that the temperature of the liquid is maintained within an error threshold of a target temperature, wherein the target temperature is 70-90°C and the error threshold is ±5°C.

[0021] In one embodiment, the liquid includes one or more of water, a water-alcohol mixture, mineral oil, silicone oil, and a water-glycerin mixture.

[0022] As a second aspect of an embodiment of the present application, an embodiment of the present application provides a photovoltaic cell production line, comprising: a conveying device, a preheating box and a curing device of any implementation aspect of the above embodiments; the conveying device is used to convey the laminate from the preheating box to the upper surface of the first top plate in the curing device.

[0023] In the embodiment of the present application, a liquid of target temperature is contained in a holding tank so that the liquid of target temperature can transfer heat to the first top plate, and the heat of the first top plate is transferred to the laminate. The heat transfer medium of the holding tank is liquid. Based on the fluidity of the liquid, the heat at multiple positions in the first top plate can be guaranteed to be uniform, so that the adhesive film at multiple different positions in the laminate undergoes the same degree of cross-linking reaction, thereby achieving uniform curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0025] Figure 1 A schematic structural diagram of the curing equipment provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions, and advantages of this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and examples. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. This application will be described in detail below with reference to the accompanying drawings and in conjunction with the examples.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] In the present application, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e., the minimum and maximum values) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to an integer in the numerical interval, including the two endpoint integers of the numerical range, and each integer between the two endpoints, is equivalent to directly enumerating each integer. When multiple numerical ranges are provided to describe a feature or characteristic, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical range disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows broadly including quantitative intervals such as percentage intervals, ratio intervals, and ratio intervals.

[0029] Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0030] The embodiment of the present application provides a curing device, Figure 1 The structural schematic diagram of the curing equipment provided by the embodiment of the present application is shown. The curing equipment provided by the embodiment of the present application cures the laminated part 300, which includes photovoltaic cells, adhesive film and glass. The adhesive film and glass are used to encapsulate the photovoltaic cells so that the photovoltaic cells have the ability to resist interference from the external environment and improve the stability of the photovoltaic cells. After the photovoltaic cells, adhesive film and glass are laminated, the three are compacted firmly to form a laminated part 300 with an integral structure. An aluminum frame is added to the laminated part 300 to encapsulate the periphery of the laminated part 300, and then the laminated part 300 is cured so that the adhesive film in the laminated part 300 undergoes a cross-linking reaction, thereby improving the adhesion between the adhesive film and other structures. In the curing process, the more uniform the curing is, the more likely it is to complete the curing in the shortest time and have a good curing effect.

[0031] The curing device provided in the embodiment of the present application can ensure that the heat applied to the adhesive film in the laminate 300 is uniform, thereby achieving uniform curing and improving curing efficiency.

[0032] like Figure 1 As shown, the curing device provided in the embodiment of the present application includes a shell.

[0033] The housing includes a first top plate 110, a bottom plate 120, and side walls 130. The bottom plate 120 and the side walls 130 form a receiving tank containing liquid at a target temperature; the first top plate 110 covers the receiving tank; and the first top plate 110 is used to support the laminate 300 to be cured.

[0034] The sidewall 130 can surround the edge of the bottom plate 120 and be fixedly connected to the bottom plate 120 to form a receiving tank. The receiving tank has an open opening, and the first top plate 110 covers the opening. The heat emitted by the liquid at the target temperature in the receiving tank can be transferred to the first top plate 110.

[0035] The first top plate 110 and the side wall 130 can be fixedly connected or detachably connected. When the first top plate 110 and the side wall 130 are fixedly connected, a sealed receiving chamber is formed between the first top plate 110, the bottom plate 120 and the side wall 130, and the receiving chamber contains liquid at a target temperature.

[0036] The first top plate 110 carries the laminate 300 . The heat received by the first top plate 110 from the liquid can be further transferred to the laminate 300 , so that the laminate 300 is heated and the adhesive film is cured.

[0037] The film inside the laminate 300 can be EVA (Polyethylene vinyl acetate) film, POE (Polyolefin elastomer) film, or EPE (Ethylene vinyl acetate) film. This embodiment of the present application does not limit the film material. For films made of different materials, the target temperature of the liquid in the holding tank can be adjusted accordingly.

[0038] As an example, the ideal curing temperature of EVA film is 60°C-85°C. When the film used in the laminate 300 is EVA film, the target temperature of the liquid can be any value between 60°C-85°C.

[0039] As another example, the ideal curing temperature of POE film is generally between 80-120° C. When the film used in the laminate 300 is a POE film, the target temperature of the liquid can be any value between 80° C. and 120° C.

[0040] As another example, the film can also be an EPE film. The ideal curing temperature of EPE film is usually between 70°C and 90°C. When curing the laminate 300 containing the EPE film, the target temperature of the liquid can be between 70°C and 90°C. In actual application, the target temperature of the liquid can be set according to the specific situation.

[0041] As an example, commonly used packaging films for photovoltaic cells include EVA film and POE film. The target temperature of the liquid can be defaulted to a temperature that is suitable for both EVA film and POE film, such as any value between 80°C and 90°C, so that no matter what material the photovoltaic cell is encapsulated with, the liquid of the target temperature can be applied without making additional adjustments based on the film material, thereby improving the versatility of application of the curing equipment and improving the curing efficiency of the laminate 300.

[0042] In this embodiment of the present application, a liquid at a target temperature is contained within the holding tank, allowing the liquid to transfer heat to the first top plate 110. The heat from the first top plate 110 is then transferred to the laminate 300, thereby promoting the cross-linking reaction of the adhesive film within the laminate 300 during the curing process and improving curing efficiency. The heat transfer medium of the holding tank is a liquid. Due to the fluidity of the liquid, uniform heat distribution can be ensured at multiple locations within the first top plate 110, thereby achieving the same degree of cross-linking reaction at multiple locations within the laminate 300, thereby achieving uniform curing.

[0043] By using the curing equipment provided in the embodiment of the present application, the laminate 300 can be uniformly cured, so that the bonding degree of the adhesive film inside the battery after curing is uniform and there is no obvious shrinkage after curing.

[0044] In one embodiment, the curing apparatus further includes a light source assembly 200, which is positioned above the first top plate 110. The light source assembly 200 emits light that irradiates the upper surface of the first top plate 110 and acts on the adhesive film within the laminate 300, thereby curing the adhesive film. The light source assembly 200 may be an ultraviolet light source, an infrared light source, or an LED light source.

[0045] The curing method used in the present embodiment utilizes a light-curing method. A light source is irradiated onto the adhesive film within the laminate 300. Heat from the light source assembly 200 and the first top plate 110 causes the adhesive film to cure, forming a solid adhesive film that is tightly bonded to the photovoltaic cell or glass. Applying a certain amount of heat to the laminate 300 increases the speed of the cross-linking reaction and improves curing efficiency, allowing the adhesive film to cure within a few seconds, forming a solid adhesive film that is tightly bonded to the photovoltaic cell or glass. Simultaneously, the light source assembly 200 irradiates the laminate 300 from above, altering the structure and physical and chemical properties of the materials within the photovoltaic cell, making it more suitable for operation, thereby improving the photovoltaic cell's power generation efficiency and stability.

[0046] In one embodiment, the number of the accommodating grooves is one; the shape of the first top plate 110 is adapted to the shape of the bottom plate 120, and the size of the first top plate 110 is 100% to 200% of the size of the bottom plate 120, and the bottom plate 120 is arranged near the center of the first top plate 110.

[0047] In the embodiment of the present application, there is only one receiving slot, that is, only one receiving slot provides heat to the first top plate 110. The laminate 300 is placed on the first top plate 110 at a position corresponding to the receiving slot, so that the laminate 300 can be heated easily.

[0048] The shape of the first top plate 110 may be adapted to the shape of the bottom plate 120 , and the shape of the bottom plate 120 may be adapted to the shape of the laminate 300 .

[0049] In one example, the laminate 300 is rectangular in shape; the bottom plate 120 is also rectangular in shape, and the length / width of the bottom plate 120 is proportionally enlarged relative to the length / width of the laminate 300. This allows the bottom plate 120 to cover the laminate 300 when the laminate 300 is placed on the first top plate 110, facilitating uniform heating of the liquid in the holding tank for the laminate 300. Similarly, the first top plate 110 is also rectangular in shape, and the length / width of the first top plate 110 is proportionally enlarged relative to the length / width of the bottom plate 120.

[0050] In one example, the size of the first top plate 110 can be equal to that of the bottom plate 120, that is, the first top plate 110 and the bottom plate 120 have the same shape and size, and together with the side wall 130 form a cylindrical accommodating cavity structure; the laminate 300 can be placed at any position on the first top plate 110 and can be subjected to uniform heat.

[0051] In one example, the size of the first top plate 110 can be larger than that of the bottom plate 120, that is, the first top plate 110 has a protruding edge relative to the side wall 130, and the protruding edge can be used to connect with other mechanisms or structures to facilitate the formation of an integrated production line.

[0052] In the embodiments of the present application, the dimensions of the first top plate 110, the dimensions of the laminate 300, and the dimensions of the bottom plate 120 can all be expressed as one or more dimensions relative to their shapes. For example, if the shape is circular, the dimensions include the radius or diameter; for another example, if the shape is rectangular, the dimensions include the length and width.

[0053] When the number of accommodating slots is one, one laminate 300 or multiple laminates 300 can be placed on the first top plate 110. The multiple laminates 300 are all placed at positions corresponding to the bottom plate 120 of the first top plate 110, so that the multiple laminates 300 are subjected to uniform heat.

[0054] The edge of the first top plate 110 protruding relative to the side wall 130 can be used to fix or support other components to facilitate installation.

[0055] like Figure 1 As shown, the curing device further includes a frame 400 , and the shell is fixed on the frame 400 , which can be achieved by fixing the first top plate on the frame 400 .

[0056] The edge of the first top plate 110 protruding relative to the side wall 130 can also be used to reserve a certain amount of space outside the side wall 130 to facilitate the installation of pipelines so as to inject liquid at the target temperature into the receiving tank.

[0057] In one embodiment, there are multiple receiving grooves, and the shape of the bottom plate 120 is adapted to the shape of the laminate 300 , and the size of the bottom plate 120 is adapted to the size of the laminate 300 .

[0058] In the embodiment of the present application, a first top plate 110 corresponds to multiple receiving tanks, and the multiple receiving tanks are all arranged below the first top plate 110 to transfer heat to the first top plate 110. The temperature of the liquid in the multiple receiving tanks can be equal or have a preset temperature difference within a preset range.

[0059] A first top plate 110 corresponds to multiple receiving grooves, and a receiving groove can correspond to a laminate 300 configuration, that is, multiple photovoltaic cells are placed on the first top plate 110 at the same time and cured at the same time. A laminate 300 is placed corresponding to a receiving groove, and the liquid temperature in a receiving groove is uniform, which can keep the heat uniform at various positions in a laminate 300, thereby achieving uniform curing of the laminate 300.

[0060] In the embodiment of the present application, multiple receiving slots are provided corresponding to a single first top plate 110, thereby enabling uniform curing of multiple laminates 300 simultaneously. Providing multiple receiving slots facilitates efficient and accurate temperature control of the liquid within the receiving slots, and also allows for faster temperature adjustment, ensuring that the temperature of the liquid within the receiving slots remains at a target temperature that is optimal for efficient curing of the laminates 300, thereby improving curing efficiency.

[0061] In one embodiment, the housing further includes a second top plate (not shown in the figure), which covers the opening of the receiving groove and is fixedly connected to the side wall 130; the first top plate 110 covers the top of the second top plate.

[0062] The second top plate is fixedly connected to the side wall 130, forming a sealed receiving chamber with the side wall 130 and the bottom plate 120. The first top plate 110 is then covered on the second top plate, so that the second top plate transfers heat to the first top plate 110. The second top plate and the first top plate 110 can be spaced apart or placed in close contact.

[0063] In one example, a predetermined gap can be maintained between the first top plate 110 and the second top plate so that when the temperature of the liquid in the holding tank reaches the boiling point, the temperature transferred to the first top plate 110 is a temperature that satisfies the curing requirements of the laminate 300. In this case, the liquid in the holding tank can be continuously heated to maintain a constant boiling temperature, without the need to prevent the liquid from overheating.

[0064] In one example, when the liquid in the holding tank is water, the boiling point of water is 100°C. The water in the holding tank can be continuously heated to maintain the temperature of 100°C. By setting a gap between the first top plate 110 and the second top plate according to the material of the first top plate 110 and the second top plate, when heat is transferred to the first top plate 110, the temperature of the first top plate 110 is the target temperature.

[0065] In one example, while maintaining a preset gap between the first top plate 110 and the second top plate, plates or particles of other materials can be added between the first top plate 110 and the second top plate so that when heat is transferred to the first top plate 110, the temperature of the first top plate 110 is the target temperature.

[0066] In one embodiment, the side wall 130 is fixedly connected or movably connected to the first top plate 110 .

[0067] While the second top plate is fixedly connected to the side walls 130 and the bottom plate 120 to form a sealed accommodating chamber, the side walls 130 and the first top plate 110 are movably connected, allowing for removal and installation of the side walls 130 and the first top plate 110. If a leak develops in a sealed accommodating chamber, or if the temperature of the liquid in the accommodating chamber is too low, the accommodating chamber can be removed and replaced.

[0068] The side wall 130 and the first top plate 110 may also be fixedly connected.

[0069] In one example, the bottom plate 120 , the side wall 130 , the second top plate and the first top plate 110 can be integrally formed to form a housing, which is then installed at a designated location on the curing device.

[0070] In one embodiment, the upper surface of the first top plate 110 is provided with area markings that match the shape of the bottom plate 120 .

[0071] Setting area marks on the upper surface of the first top plate 110 can facilitate operators to place the laminate 300 into the position within the area marks during curing operations or robot operations, ensuring that the laminate 300 is placed in the corresponding receiving groove.

[0072] In one example, the region marking may be a line marking. The line marking the region marking may be the same as the edge of the base plate 120, indicating the edge of the base plate 120. During the curing operation, the position of the laminate 300 is determined based on the edge of the base plate 120 indicated by the region marking, and the laminate 300 may be placed near the center of the region marking. The line marking the region marking may also be inside the edge of the base plate 120, so that the region marking is within the center of the receiving slot. During the curing operation, as long as the laminate 300 is within the region marking, it is at the center of the receiving slot.

[0073] In the embodiment of the present application, area marks are provided on the upper surface of the first top plate 110 to facilitate determination of the position of the laminate 300 , thereby improving the efficiency of position determination and thereby improving the efficiency of curing.

[0074] In one embodiment, the light source assembly 200 includes at least one light source group, where one light source group corresponds to one area marking setting; one light source group includes at least one light emitting device, which is used to provide a light source.

[0075] One light source group is set corresponding to one area mark, so that the laminates 300 in multiple area marks receive the same degree of light source irradiation, avoiding the light source irradiating other areas in the case of large-scale curing, resulting in waste of light source.

[0076] In the embodiment of the present application, a plurality of light source groups are provided, with one light source group corresponding to one area marking setting, so that a large-scale curing process can be achieved, that is, the curing process of a plurality of laminates 300 can be completed at the same time.

[0077] In one embodiment, the height of the side wall 130 is 5-20 cm.

[0078] The higher the sidewall 130 is, the more liquid the tank can hold; conversely, the lower the sidewall 130 is, the less liquid the tank can hold. By limiting the height of the sidewall 130, it is possible to ensure that the heat provided by the liquid in the tank meets the curing requirements of the laminate 300.

[0079] As an example, the height of the side wall 130 may be 5 cm, 7 cm, 8 cm, 11 cm, 12 cm, 15 cm, 16 cm, or 20 cm.

[0080] In one example, the height of the side wall 130 is 20 cm, and the liquid in the receiving tank can fill the entire receiving tank or be filled to a preset height. The preset height can be set according to actual application conditions.

[0081] In one embodiment, the holding tank is provided with a liquid inlet and a liquid outlet; the liquid at the target temperature enters the holding tank from the liquid inlet and flows out from the liquid outlet.

[0082] In the embodiment of the present application, the temperature of the liquid in the holding tank is maintained at the target temperature by continuously inputting the liquid at the target temperature into the holding tank, thereby ensuring that the laminate 300 is cured at the ideal temperature.

[0083] The liquid inlet and the liquid outlet may be provided on the side wall 130 or on the bottom plate 120 .

[0084] In one embodiment, a flow channel is provided in the receiving tank, and the flow channel includes an S-shaped flow channel or a Y-shaped flow channel.

[0085] The embodiment of the present application provides a flow channel in the holding tank so that the liquid in the holding tank flows in and out in an orderly manner, ensuring that the newly flowed-in liquid flows out last and the liquid that flowed in earlier flows out first, thereby ensuring that the temperature of the liquid in the holding tank is maintained at the target temperature, and making the temperature of the liquid in the holding tank controllable. When the temperature is low, the inflow of liquid can be increased to ensure that the temperature of the liquid in the holding tank meets the requirements as soon as possible.

[0086] The width of the S-shaped flow channel can be adapted to the width of the liquid inlet. The liquid flowing into the liquid inlet enters the holding tank and flows along the S-shaped flow channel until it flows out from the liquid outlet. This can ensure first-in-first-out and prevent the newly flowing liquid from flowing directly to the liquid outlet and out, affecting the efficiency and effect of liquid temperature control.

[0087] The Y-shaped flow channel can be configured with one liquid inlet corresponding to multiple liquid outlets. Liquid flowing into the inlet enters the holding tank and flows along the multiple branch channels in the Y-shaped flow channel until it flows out of the corresponding liquid outlet. The Y-shaped flow channel can accelerate the flow of liquid and improve temperature control efficiency.

[0088] In one embodiment, a heating device is further included. The heating device is located below the bottom plate 120 and is used to heat the bottom plate 120 .

[0089] In an embodiment of the present application, the liquid in the holding tank can be of fixed capacity and will not flow in through the liquid inlet or out of the liquid outlet; by heating the liquid, the liquid in the holding tank can reach the target temperature.

[0090] In one embodiment, a temperature sensor is further included, which is used to detect the temperature of the liquid so that the temperature of the liquid is maintained within an error threshold of a target temperature, wherein the target temperature is 70-90°C and the error threshold is ±5°C.

[0091] The target temperature is set based on the cross-linking requirements of the film. It can be a specific value, such as 80°C. When controlling the temperature, with a ±5°C tolerance, it can be determined that liquid temperatures between 75°C and 85°C meet the requirements.

[0092] In one embodiment, the liquid includes one or more of water, a water-alcohol mixture, mineral oil, silicone oil, and a water-glycerin mixture.

[0093] Any liquid with a boiling point not lower than the target temperature can implement the solution of the embodiment of the present application.

[0094] Preferably, the liquid may be water, the boiling point of which meets the cross-linking and curing requirements of the EVA film and the POE film, and the liquid is low in cost and easily available.

[0095] An embodiment of the present application provides a photovoltaic cell production line, comprising: a conveying device, a preheating box, and a curing device according to any of the above embodiments; the conveying device is used to convey the laminate 300 from the preheating box to the upper surface of the first top plate 110 in the curing device.

[0096] The preheating box is placed before the curing equipment. That is, after the laminate 300 is preheated in the preheating box, it is transferred to the curing equipment for curing.

[0097] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0098] For ease of description, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right," "lateral, vertical, perpendicular, horizontal," and "top, bottom" are generally based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of this application. The directional terms "inside" and "outside" refer to the inside and outside relative to the outline of the components themselves. For example, if the device in the drawings is inverted, the device described as "above" or "on top of" other devices or structures will be positioned "below" or "below" other devices or structures. Therefore, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0099] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0100] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0101] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0102] It should also be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like throughout this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as included in at least one embodiment generally described herein. The appearance of the same expression in multiple places in this specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also fall within the scope of this application.

[0103] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0104] It should also be noted that the above are only preferred embodiments of the present application and do not limit the scope of patent protection of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present application.

Claims

1. A curing device, characterized in that: include: a housing, the housing comprising a first top plate, a bottom plate, and side walls; The bottom plate and the side wall form a receiving groove, and the receiving groove contains liquid at a target temperature; The first top plate covers the upper portion of the containing tank; the first top plate is used for supporting the laminate to be cured.

2. The curing device according to claim 1, characterized in that It also includes a light source assembly, which is located above the first top plate and emits light to illuminate the upper surface of the first top plate.

3. The curing equipment according to claim 1, characterized in that The number of the accommodating grooves is one; the shape of the first top plate is adapted to the shape of the bottom plate, and the size of the first top plate is 100% to 200% of the size of the bottom plate, and the bottom plate is arranged close to the center of the first top plate.

4. The curing device according to claim 1, characterized in that There are a plurality of accommodating grooves, the shape of the bottom plate is adapted to the shape of the laminate, and the size of the bottom plate is adapted to the size of the laminate.

5. The curing device according to any one of claims 1 to 4, characterized in that: The shell further includes a second top plate, which covers the opening of the accommodating groove and is fixedly connected to the side wall; the first top plate covers the top of the second top plate.

6. The curing device according to claim 5, characterized in that The side wall is fixedly connected to the first top plate or movably connected to the first top plate.

7. The curing device according to claim 2, characterized in that: The upper surface of the first top plate is provided with an area mark that matches the shape of the bottom plate.

8. The curing device according to claim 7, characterized in that: The light source assembly includes at least one light source group, and one light source group corresponds to one area mark setting; one light source group includes at least one light emitting device, and the light emitting device is used to provide a light source.

9. The curing device according to claim 1, characterized in that: The height of the side wall is 5-20 cm.

10. The curing device according to any one of claims 1 to 4, characterized in that: The holding tank is provided with a liquid inlet and a liquid outlet; the liquid inlet and the liquid outlet both penetrate the holding tank; the liquid at the target temperature enters the holding tank from the liquid inlet and flows out from the liquid outlet.

11. The curing device according to claim 10, characterized in that: A flow channel is provided in the receiving tank, and the flow channel includes an S-shaped flow channel or a Y-shaped flow channel.

12. The curing device according to any one of claims 1 to 4, characterized in that: It also includes a heating device, which is located below the bottom plate and is used to heat the bottom plate.

13. The curing device according to claim 1, characterized in that A temperature sensor is also included, which is used to detect the temperature of the liquid so that the temperature of the liquid is maintained within an error threshold of the target temperature, the target temperature is 70-90°C, and the error threshold is ±5°C.

14. The curing device according to claim 1, characterized in that The liquid includes one or more of water, a water-alcohol mixture, mineral oil, silicone oil and a water-glycerin mixture.

15. A photovoltaic cell production line, characterized in that: include: A conveying device, a preheating box and a curing device according to any one of claims 1 to 14; the conveying device is used to convey the laminate from the preheating box to the upper surface of the first top plate in the curing device.

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