Dismounting method and dismounting equipment for photovoltaic module

Abstract

The embodiment of the invention provides a disassembly method and disassembly equipment for a photovoltaic module. The disassembly method of the photovoltaic module comprises the following steps: heating the photovoltaic module to be disassembled to a first temperature so as to heat at least part of silica gel in an aluminum frame in the photovoltaic module into solid powder; and the aluminum frame is pulled away, so that the photovoltaic module is disassembled, and the laminated piece and the aluminum frame are obtained. According to the embodiment of the invention, the photovoltaic module is heated, so that at least part of silica gel in the aluminum frame is changed into solid powder, and under the condition of the solid powder, the silica gel does not have adhesion performance any more, and only a clamping relation exists between the laminated piece and the aluminum frame, so that the aluminum frame can be easily pulled out from the photovoltaic module; therefore, the photovoltaic module can be easily dismounted with small force, the dismounting time is greatly shortened, and the efficiency of dismounting the photovoltaic module can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cells and the technical field of recycling of photovoltaic modules, and in particular to a disassembly method and disassembly equipment of a photovoltaic module. Background Art

[0002] Photovoltaic modules include aluminum frames. After the photovoltaic modules are retired, the aluminum frames can be recycled to save material costs.

[0003] In the existing aluminum frame removal, mechanical tools are mostly used to physically remove the aluminum frame. This method is laborious and easily damages the glass in the laminate, resulting in residual broken glass and adding secondary processing steps.

[0004] 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

[0005] The embodiments of the present application provide a method and device for disassembling a photovoltaic module to solve or alleviate one or more of the technical problems mentioned above.

[0006] As a first aspect of an embodiment of the present application, an embodiment of the present application provides a method for disassembling a photovoltaic assembly, comprising: Heating the photovoltaic module to be disassembled to a first temperature to heat at least a portion of the silica gel inside the aluminum frame of the photovoltaic module into a solid powder; The aluminum frame is pulled out to disassemble the photovoltaic module to obtain the laminate and the aluminum frame.

[0007] In one embodiment, the first temperature is 320° C.-400° C., and the heating time is 10-30 min.

[0008] In one embodiment, the aluminum frame is removed to disassemble the photovoltaic module to obtain the laminate and the aluminum frame, and the process also includes: Cool the PV panels for a preset time or to a target temperature.

[0009] In one embodiment, the method further includes: placing the aluminum frame in a cleaning device for cleaning to remove solid powder; the cleaning device includes one or more of an ultrasonic cleaning device, a drum cleaning device and a wind cleaning device.

[0010] In one embodiment, it further includes: heating the laminate to a second temperature to carbonize the adhesive film in the laminate; Remove the glass, solder ribbon and battery cells from the laminate in sequence.

[0011] In one embodiment, the second temperature is 400-500° C., and the heating time is 10-20 min.

[0012] As a second aspect of an embodiment of the present application, an embodiment of the present application provides a photovoltaic assembly disassembly device, including: A conveying unit, the conveying unit comprises a plurality of conveying layers sequentially distributed from top to bottom, and at least one photovoltaic module to be disassembled is stacked on one conveying layer; A heating unit, comprising a heating chamber, the size of the heating chamber being matched to the size of the conveying unit so that the conveying unit conveys the photovoltaic assembly to the heating chamber; The disassembly unit comprises a disassembly device, which comprises a clamping part and a moving part. The clamping part is used for clamping an aluminum frame in a photovoltaic assembly, and the moving part is used for driving the clamping part to move.

[0013] In one embodiment, the disassembling unit comprises at least two disassembling devices arranged opposite to each other, and the two disassembling devices are arranged on opposite sides of the conveying unit.

[0014] In one embodiment, a moving part is provided with a plurality of clamping parts corresponding to a plurality of transmission layers; after the plurality of clamping parts clamp the aluminum frames corresponding to the transmission layers, the moving part drives the plurality of clamping parts to move.

[0015] In one embodiment, the movement of the moving part includes rotation or translation.

[0016] In one embodiment, it also includes an ultrasonic cleaning device, a drum cleaning device and / or a wind cleaning device; the positions of the ultrasonic cleaning device, the drum cleaning device and / or the wind cleaning device are adapted to the position of the moving part.

[0017] The embodiment of the present application heats the photovoltaic module so that at least part of the silica gel inside the aluminum frame becomes a solid powder. In the solid powder state, the silica gel no longer has adhesion properties, and the laminate and the aluminum frame only have a snap-on relationship. The aluminum frame can be easily pulled out of the photovoltaic module; it can be easily removed with less force, and the time for disassembly is greatly shortened, thereby improving the efficiency of disassembling the photovoltaic module. At the same time, the photovoltaic module disassembly method provided in the embodiment of the present application can also obtain a good aluminum frame, which can be put into use after cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0019] Figure 1A schematic diagram showing a flow chart of a method for disassembling a photovoltaic module provided in one embodiment of the present application.

[0020] Figure 2 A schematic flow chart showing a method for disassembling a photovoltaic module provided in another embodiment of the present application is shown.

[0021] Figure 3 A schematic structural diagram of a drum cleaning device provided in one embodiment of the present application is shown.

[0022] Figure 4 A schematic flow chart of a method for disassembling a photovoltaic module provided in yet another embodiment of the present application is shown.

[0023] Figure 5 A schematic diagram of the structure of a conveying unit of a photovoltaic assembly disassembly device provided in one embodiment of the present application is shown.

[0024] Figure 6 A schematic diagram of the structure of a heating unit of a photovoltaic module disassembly device provided in one embodiment of the present application is shown.

[0025] Figure 7 A schematic diagram of the structure of a disassembly unit of a photovoltaic module disassembly device provided in one embodiment of the present application is shown. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[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 can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations 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 that are 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, it includes the two endpoint integers of the numerical range, and each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical range disclosed in the present application should be understood to include any and all sub-ranges 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 for 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 can be implemented in many different forms and should not be construed as being limited to the embodiments described herein.

[0030] The embodiment of the present application provides a method for disassembling a photovoltaic module, so as to remove the aluminum frame in the photovoltaic module in a more convenient way with less damage or without damage. Before removing the aluminum frame in the photovoltaic module, the wires between adjacent photovoltaic modules are usually cut off, and the junction box, power amplifier and other devices connected to the photovoltaic module are removed to obtain the photovoltaic module to be disassembled.

[0031] Figure 1 A schematic diagram of a process for disassembling a photovoltaic module provided by an embodiment of the present application is shown. Figure 1 As shown, the photovoltaic assembly disassembly method provided in the embodiment of the present application includes: S210, heating the photovoltaic module to be disassembled to a first temperature to heat at least a portion of the silica gel inside the aluminum frame of the photovoltaic module into solid powder.

[0032] During the preparation process of the photovoltaic module, a cell for converting light energy into electrical energy is first prepared, and then the cell is encapsulated by glass and encapsulation film to obtain a laminate that can protect the cell against the external environment. Further, an aluminum frame is encapsulated around the laminate to further protect the cell. In the process of encapsulating the aluminum frame, silica gel is injected into the inside of the aluminum frame to firmly bond the aluminum frame and the laminate, and the waterproof performance of the photovoltaic module can also be enhanced. Therefore, in the case of firmly bonding the laminate and the aluminum frame based on silica gel, simply using mechanical tools for physical removal, that is, using mechanical force to remove the way such as causing glass damage to the laminate, and the aluminum frame obtained by disassembly is easy to deform, which is not conducive to secondary use.

[0033] S210, extracting the aluminum frame to disassemble the photovoltaic module to obtain a laminate and an aluminum frame.

[0034] The embodiment of the present application heats the photovoltaic module so that at least part of the silica gel inside the aluminum frame becomes a solid powder. In the solid powder state, the silica gel no longer has adhesion properties, and the laminate and the aluminum frame only have a snap-on relationship. Therefore, the aluminum frame can be easily pulled out of the photovoltaic module by mechanical tools or manpower. Although the manpower or mechanical tools used here to remove the aluminum frame are also physical methods, compared with the method of disassembly without heating, the force required to be applied is greatly reduced, there is no need to squeeze the glass, and it is not easy to cause damage to the laminate.

[0035] The embodiment of the present application heats the photovoltaic module before removing the aluminum frame, so that it can be easily removed with less force and the disassembly time is greatly shortened. Therefore, the efficiency of disassembling the photovoltaic module can be improved.

[0036] At the same time, by adopting the photovoltaic module disassembly method provided in the embodiment of the present application, a complete aluminum frame can be obtained, and after the aluminum frame is cleaned, it can be put into use.

[0037] In one embodiment, the first temperature is 320° C.-400° C., and the heating time is 10-30 min.

[0038] For silicone that only has adhesion properties, the embodiment of the present application heats the photovoltaic module so that the silicone is subjected to high temperature and becomes a solid powder, and the aluminum frame itself is able to conduct heat. Therefore, when the first heating temperature of the photovoltaic module is 320°C-400°C, heating for 10-30 minutes can cause changes in the properties of the silicone inside, such as the texture becoming brittle and the adhesive performance decreasing, thereby turning the silicone into a solid powder.

[0039] The silicone in the embodiment of the present application becomes solid powder, which does not mean that the silicone at every position must become powder. It only needs the silicone itself to become a brittle and solidified solid type, and its form may include powder, block, etc. Where the silicone is thin, it is easy to become powder, and where the silicone is thick, it may become a solid object, etc.

[0040] The embodiment of the present application only needs to ensure that the silica gel inside the aluminum frame that is in contact with or close to the laminate is turned into solid powder. In this case, the aluminum frame can be easily pulled out.

[0041] The embodiment of the present application limits the heating time to 10-30 minutes, so as to ensure that part of the silica gel has turned into solid powder, and then starts to be pulled away from the aluminum frame, thereby improving the disassembly efficiency.

[0042] It is understandable that the disassembly method of the embodiment of the present application can be implemented with a higher first temperature or a longer heating time; such an implementation is certainly within the scope of the embodiment of the present application. However, the first temperature cannot exceed the melting point of the aluminum in the aluminum frame.

[0043] The first temperature and the corresponding heating time determined and provided in the embodiment of the present application are optimal values ​​obtained by the inventor after multiple experiments, so as to strike a balance between the disassembly efficiency and the energy consumption of the heating equipment.

[0044] In one embodiment, if Figure 2 As shown, before step S220, the following steps are also included: S211, cooling the photovoltaic module for a preset time, or cooling it to a target temperature.

[0045] After the photovoltaic module is heated to the first temperature, part of the silica gel in the aluminum frame turns into solid powder. At this time, by cooling the photovoltaic module, the silica gel that has not turned into solid powder can be solidified to avoid adhering to the solid powder and affecting the separation of the laminate and the aluminum frame.

[0046] The embodiment of the present application can ensure that the subsequent disassembly work is carried out smoothly by cooling the heated photovoltaic components, and improve the disassembly completion rate of the aluminum frame.

[0047] In one example, the photovoltaic assembly may be cooled to room temperature, that is, the target temperature may be 18° C. to 28° C. The photovoltaic assembly may be cooled to room temperature at room temperature.

[0048] In one example, the photovoltaic assembly may be transferred to a cooling device for cooling. Based on the controllability of the cooling device, a preset cooling time may be set so that the photovoltaic assembly reaches a target temperature after being cooled by the cooling device.

[0049] In one embodiment, the method further includes: placing the aluminum frame in a cleaning device for cleaning to remove solid powder; the cleaning device includes one or more of an ultrasonic cleaning device, a drum cleaning device and a wind cleaning device.

[0050] After the laminate and the aluminum frame are pulled out, some solid powder adheres to the inside of the aluminum frame. In order to ensure that the aluminum frame can be recycled and reused, the disassembled aluminum frame can be cleaned to remove the solid powder in the aluminum frame.

[0051] Cleaning the aluminum frame can be done in one or more of the following ways: 1) Place the aluminum frame in the cleaning chamber of the ultrasonic cleaning device. The cleaning chamber is filled with pure water. The aluminum frame is completely immersed in the pure water. The parameters are adjusted to an ultrasonic frequency of 20-50kHz and an ultrasonic time of 5-15min to clean the silica gel powder in the notch of the aluminum frame.

[0052] 2) If Figure 3 As shown, the aluminum frame 21 is placed in the drum 700 of the drum cleaning device, and the drum 700 is driven to roll by the roller 800, thereby driving the aluminum frame 21 in the drum 700 to rotate, and the drum speed is 10-20rpm, so that the silica gel powder falls off, and the silica gel powder in the aluminum frame 21 is removed, and the aluminum frame 21 is taken out from the outlet of the drum 700, so that the taken out aluminum frame 21 can be reused with new laminates.

[0053] 3) Place the aluminum frame in the bellows of the wind cleaning device and introduce air with an air volume of 10-100m³ / h to blow away the silica gel powder in the aluminum frame. The wind cleaning device can also include functional devices for exhaust gas treatment and powder collection.

[0054] In one embodiment, if Figure 4 As shown, the method for disassembling the photovoltaic module also includes: S230, heating the laminate to a second temperature to carbonize the adhesive film in the laminate.

[0055] The laminate includes a battery cell and a packaging glass, and the battery cell and the packaging glass are bonded by an adhesive film. The adhesive film can be an EVA (Polyethylene vinylacetate, polyethylene-polyvinyl acetate copolymer) adhesive film, a POE (Polyolefin Elastomer, polyvinyl alcohol) adhesive film, or an EPE (Ethylene Vinyl Acetate, ethylene-vinyl acetate copolymer) adhesive film.

[0056] In the embodiment of the present application, the laminate is heated to the second temperature so that the adhesive film between the battery cell and the encapsulation glass is carbonized and loses its adhesive property, thereby facilitating the separation of the glass and the battery cell.

[0057] S240, sequentially extracting the glass, solder ribbon and battery cell from the laminate.

[0058] When the adhesive film is carbonized at high temperature, the glass, solder ribbon and battery cell can be clamped or extracted at once by a robot, thus achieving disassembly.

[0059] The disassembly method provided in the embodiment of the present application is used to disassemble the laminated component, which requires less effort, is more efficient, and does not damage the glass, so that the glass can be reused.

[0060] In one embodiment, the second temperature is 400-500° C., and the heating time is 10-20 min.

[0061] The heating of the aluminum frame in the photovoltaic module to the first temperature and the heating of the laminate to the second temperature can be performed in the same heating chamber.

[0062] After removing the aluminum frame, the extracted laminate is transferred to the heating chamber, and the temperature is further increased to a second temperature, so that the heating chamber does not require too long a preheating time, thereby saving equipment costs and improving disassembly efficiency.

[0063] The embodiment of the present application can ensure that the adhesive film is completely carbonized by heating at a preset second temperature for a limited heating time, so that it can be used for disassembly, and at the same time, a decrease in efficiency due to long-term heating can be avoided.

[0064] At the same time, the robot for disassembling the aluminum frame can be shared with the robot for disassembling the glass and battery cells in the laminate, which can further save equipment costs and improve disassembly efficiency.

[0065] The present application embodiment provides a disassembly device for a photovoltaic assembly 200, such as Figures 5 to 7 As shown, the disassembly device includes a conveying unit, a heating unit and a disassembly unit.

[0066] The conveying unit includes a plurality of conveying layers 100 distributed sequentially from top to bottom, and one conveying layer 100 is stacked with at least one photovoltaic assembly 200 to be disassembled.

[0067] The heating unit includes a heating chamber 41 , and the size of the heating chamber 41 is matched with the size of the conveying unit, so that the conveying unit conveys the photovoltaic assembly 200 to the heating chamber 41 .

[0068] The disassembly unit includes a disassembly device 500 , which includes a clamping portion 53 and a moving portion 52 . The clamping portion 53 is used to clamp the aluminum frame 21 in the photovoltaic assembly 200 , and the moving portion 52 is used to drive the clamping portion 53 to move.

[0069] The transport unit transports the photovoltaic assembly 200 to the heating chamber 41 , and continues to transport after the heating is completed. At the position passing the disassembly unit, the clamping part 53 of the disassembly device 500 is controlled to clamp the aluminum frame 21 , so as to separate the laminate and the aluminum frame 21 .

[0070] The clamping portion 53 can be clamped in various structures or ways known to ordinary technicians in this field now and in the future. It only needs to be able to clamp the aluminum frame 21, and will not be described in detail here.

[0071] When the clamping portion 53 clamps the aluminum frame 21 on one side, the laminate can be fixed by other fixing devices to facilitate the clamping and removal of the aluminum frame 21.

[0072] The moving part 52 is mechanically connected to the clamping part 53, and may include a variety of connectors, so that the moving part 52 can easily drive the clamping part 53 to approach the transmission layer 100 and / or away from the transmission layer 100. When the clamping part 53 is away from the transmission layer 100, the aluminum frame 21 is driven away, thereby achieving the separation of the laminate and the aluminum frame 21.

[0073] The moving part 52 can be clamped by various structures or methods known to ordinary technicians in this field now and in the future. It only needs to be able to drive the clamping part 53 to move, and will not be described in detail here.

[0074] In one embodiment, the disassembly unit includes at least two disassembly devices 500 disposed opposite to each other, and the two disassembly devices 500 are disposed on opposite sides of the conveying unit.

[0075] like Figure 7 As shown, in the embodiment of the present application, disassembly devices 500 are respectively arranged on opposite sides of the transmission layer 100, so that the clamping parts 53 of the disassembly devices 500 on both sides clamp the aluminum frame 21 together. In the case of not needing a fixing device to fix the aluminum frame 21, the aluminum frame 21 and the laminate can be separated, and the separation of the aluminum frames 21 on both sides can be completed within a period of time, thereby improving the disassembly efficiency.

[0076] In one example, the aluminum frames 21 around the photovoltaic module 200 include two aluminum frames 21, each of which is a right-angle aluminum frame 21, covering two sides of the laminate. In the disassembly process, the aluminum frames 21 of the photovoltaic module 200 can be completely disassembled by the two disassembly devices 500 on both sides.

[0077] In one example, the aluminum frames 21 around the photovoltaic assembly 200 include four strip-shaped aluminum frames 21, two long-side aluminum frames 21, and two short-side aluminum frames 21. When the two long-side aluminum frames 21 are disassembled by the disassembly devices 500 on the opposite sides, the photovoltaic assembly 200 is controlled to rotate, and the two short-side aluminum frames 21 are disassembled by the disassembly devices 500 to complete the disassembly of the aluminum frames 21 of the photovoltaic assembly 200. In this case, the clamping portion 53 of the disassembly device 500 can be moved to different positions to adapt to the positions when disassembling the long-side aluminum frames 21 and the short-side aluminum frames 21.

[0078] In one example, the aluminum frames 21 around the photovoltaic assembly 200 include four strip-shaped aluminum frames 21, two long-side aluminum frames 21, and two short-side aluminum frames 21. When the two long-side aluminum frames 21 are disassembled by the first disassembly devices 500 on the opposite sides, the photovoltaic assembly 200 continues to be transported forward and rotates 90° during the transport process so that the two short-side aluminum frames 21 are close to the side of the conveying layer 100, and then the two short-side aluminum frames 21 are disassembled by the second disassembly device 500 at the next position to complete the disassembly of the aluminum frames 21 of the photovoltaic assembly 200. Among them, the first disassembly device 500 and the second disassembly device 500 are both configured to match the size of the short-side aluminum frame 21 and the size of the long-side aluminum frame 21, so that the clamping portion 53 of the first disassembly device 500 clamps the long-side aluminum frame 21 at a preset position; the clamping portion 53 of the second disassembly device 500 clamps the end-side aluminum frame 21 at a preset position.

[0079] In one embodiment, a moving part 52 is provided with multiple clamping parts 53, and the multiple clamping parts 53 are respectively provided corresponding to multiple transmission layers 100; after the multiple clamping parts 53 clamp the aluminum frame 21 corresponding to the transmission layer 100, the moving part 52 drives the multiple clamping parts 53 to move.

[0080] The multiple clamping parts 53 move toward the aluminum frames 21 in the multiple transmission layers 100 at the same time, and when the corresponding aluminum frames 21 are clamped, the moving parts 52 are controlled to move, and the multiple aluminum frames 21 are taken away from the transmission layer 100 in a one-to-many manner. This can improve the control efficiency and save energy consumption, and improve the feasibility and scientific promotion of recycling the aluminum frames 21.

[0081] In one embodiment, the movement of the moving portion 52 includes rotation or translation.

[0082] The rotation may include 90° rotation, 180° rotation, etc., as long as the aluminum frame 21 is taken away from the transmission layer 100 .

[0083] The translation may be a translation in a manner perpendicular to the transmission layer 100 , or may be a translation in a manner at a certain angle to the transmission layer 100 .

[0084] In some other examples, the method may further include ascending or descending to move the aluminum frame 21 toward a position away from the transmission layer 100 .

[0085] In one embodiment, an ultrasonic cleaning device, a drum cleaning device and / or a wind cleaning device are also included; the positions of the ultrasonic cleaning device, the drum cleaning device and / or the wind cleaning device are adapted to the position where the moving part 52 moves.

[0086] After the moving part 52 drives the aluminum frame 21 away from the transmission layer 100, the aluminum frame 21 is placed in the next process for processing, that is, cleaning the aluminum frame 21. The aluminum frame 21 can be cleaned once in one way or multiple ways combined to ensure the cleanliness of the aluminum frame 21.

[0087] The positions of the ultrasonic cleaning device, the drum cleaning device and / or the wind cleaning device are adapted to the moving position of the moving part 52, so that the moving part 52 can drive the aluminum frame 21 to the above-mentioned cleaning device, reducing further transmission and thereby improving the recycling efficiency of the aluminum frame 21.

[0088] 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 "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0089] For the convenience of description, the orientation or position relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these directional words do not 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 cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0090] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] Unless otherwise clearly specified and 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 through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0092] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps 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 accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0093] It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0094] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for disassembling a photovoltaic module, characterized in that: include: Heating the photovoltaic module to be disassembled to a first temperature to heat at least a portion of the silica gel inside the aluminum frame of the photovoltaic module into a solid powder; The aluminum frame is pulled out to disassemble the photovoltaic assembly to obtain a laminate and the aluminum frame.

2. The disassembly method according to claim 1, characterized in that: The first temperature is 320° C.-400° C., and the heating time is 10-30 minutes.

3. The disassembly method according to claim 1, characterized in that: The step of extracting the aluminum frame to disassemble the photovoltaic module to obtain a laminate and the aluminum frame also includes: The photovoltaic module is cooled for a preset time period or to a target temperature.

4. The disassembly method according to claim 1, characterized in that: Also includes: The aluminum frame is placed in a cleaning device for cleaning to remove the solid powder; the cleaning device includes one or more of an ultrasonic cleaning device, a drum cleaning device and a wind cleaning device.

5. The disassembly method according to claim 1, characterized in that: Also includes: heating the laminate to a second temperature to carbonize the adhesive film in the laminate; The glass, solder ribbon and battery cell in the laminate are sequentially removed.

6. A photovoltaic module disassembly device, characterized in that: include: A conveying unit, the conveying unit comprising a plurality of conveying layers sequentially distributed from top to bottom, one of the conveying layers stacking at least one photovoltaic assembly to be disassembled; A heating unit, comprising a heating chamber, the size of the heating chamber being matched with the size of the conveying unit so that the conveying unit conveys the photovoltaic assembly to the heating chamber; The disassembly unit comprises a disassembly device, wherein the disassembly device comprises a clamping part and a moving part, wherein the clamping part is used for clamping the aluminum frame in the photovoltaic assembly, and the moving part is used for driving the clamping part to move.

7. The disassembly device according to claim 6, characterized in that The disassembling unit comprises at least two disassembling devices which are arranged opposite to each other, and the two disassembling devices are arranged on opposite sides of the conveying unit.

8. The disassembly device according to claim 6, characterized in that: A plurality of clamping parts are correspondingly arranged on one moving part, and the plurality of clamping parts are respectively arranged corresponding to the plurality of transmission layers; after the plurality of clamping parts clamp the aluminum frames corresponding to the transmission layers, the moving part drives the plurality of clamping parts to move.

9. The disassembly device according to claim 6 or 8, characterized in that: The movement of the moving part includes rotation or translation.

10. The disassembly device according to claim 9, characterized in that It also includes an ultrasonic cleaning device, a drum cleaning device and / or a wind cleaning device; the positions of the ultrasonic cleaning device, the drum cleaning device and / or the wind cleaning device are adapted to the position of the moving part.

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