Photovoltaic module, photovoltaic system and photovoltaic module disassembling method

Abstract

The invention discloses a photovoltaic module, a photovoltaic system and a photovoltaic module disassembling method, and belongs to the technical field of photovoltaic products. The photovoltaic module comprises upper glass, an upper packaging adhesive film, a battery piece, a lower packaging adhesive film and a lower packaging piece which are sequentially arranged from top to bottom; the photovoltaic module further comprises easy-to-pull glue, and the easy-to-pull glue is arranged between the upper glass and the upper packaging glue film and / or between the lower packaging glue film and the lower packaging piece. The easy-to-pull adhesive is of a long-strip-shaped structure, a plurality of pieces of easy-to-pull adhesive are arranged between the upper glass and the upper packaging adhesive film and / or between the lower packaging adhesive film and the lower packaging piece, and the plurality of pieces of easy-to-pull adhesive are arranged in the length direction of the photovoltaic module at intervals. According to the photovoltaic module provided by the invention, under the combined action of the easy-to-pull adhesive and the disassembly soaking solution, the bonding force between the upper glass and the upper packaging adhesive film and / or the bonding force between the lower packaging adhesive film and the lower packaging piece can be removed in a relatively short time, so that the recovery of the upper glass and the lower packaging piece can be realized in a relatively short time.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic products, and in particular to a photovoltaic module, a photovoltaic system and a photovoltaic module disassembly method. Background Art

[0002] like Figure 1 As shown, the photovoltaic module mainly includes an upper glass 1', an upper packaging film 2', a battery cell 3', a lower packaging film 4' and a lower packaging member 5' (which can be a lower glass or a backplane) arranged in sequence from top to bottom; wherein, the upper packaging film 2' and the lower packaging film 4' can seal the battery cell 3' and can tightly bond the glass and the backplane to the battery cell 3' respectively.

[0003] At present, when glass and back panels need to be recycled, since the glass and back panels are difficult to separate from the adhesive film, the entire photovoltaic module is usually immersed in a disassembly soaking liquid. After a certain soaking time, the adhesion between the glass and back panels and the adhesive film can be released, so that the glass and back panels can be smoothly recycled.

[0004] However, in the above-mentioned chemical immersion recycling method, since the contact area between the disassembly immersion liquid and the film is small, it takes a long immersion time to release the adhesion between the glass and the back panel and the film respectively, and the recycling efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to provide a photovoltaic module, a photovoltaic system and a photovoltaic module disassembly method, which can release the adhesion between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component in a relatively short time through the immersion effect of the disassembly immersion liquid, thereby enabling the upper glass and the lower packaging component to be recovered in a relatively short time.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A photovoltaic module, comprising, arranged in order from top to bottom, an upper glass, an upper encapsulation film, a cell, a lower encapsulation film, and a lower encapsulation member, the photovoltaic module further comprising:

[0008] Easy-to-pull adhesive, provided between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component;

[0009] The easy-to-pull adhesive is in a long strip structure. A plurality of the easy-to-pull adhesives are arranged between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component. The plurality of easy-to-pull adhesives are arranged at intervals in the length direction of the photovoltaic module.

[0010] As an optional solution, the sum of the surface areas of the individual stretch adhesives between the upper glass and the upper packaging film is 30%-60% of the surface area of ​​the upper glass, and the sum of the surface areas of the individual stretch adhesives between the lower packaging film and the lower packaging component is 30%-60% of the surface area of ​​the lower packaging component.

[0011] As an optional solution, the easy-to-pull adhesive is provided between the upper glass and the upper packaging film, and between the lower packaging component and the lower packaging film.

[0012] As an optional solution, the easy-to-pull adhesive includes:

[0013] substrate layer;

[0014] Adhesive layers are respectively provided on opposite end surfaces of the substrate layer. In the width direction of the photovoltaic module, the lengths of the adhesive layers are respectively equal to the widths of the upper glass and the lower packaging component.

[0015] As an optional solution, in the width direction of the upper glass, at least one end portion of the substrate layer protrudes from the adhesive layer.

[0016] As an optional solution, the bonding force between the adhesive layer and the upper glass and the upper packaging film, and the bonding force between the adhesive layer and the lower packaging member and the lower packaging film, respectively, are both smaller than the bonding force between the substrate layer and the adhesive layer.

[0017] As an optional solution, the lower packaging component is a lower glass or a back panel.

[0018] A photovoltaic system includes the photovoltaic module described above.

[0019] A photovoltaic module disassembly method, based on the photovoltaic module described above, comprises the following steps:

[0020] S1: Pull out the easy-to-pull adhesive between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component, so as to partially separate the upper glass and the upper packaging film and / or between the lower packaging film and the lower packaging component, and leave the gap after the easy-to-pull adhesive is pulled out;

[0021] S2: The photovoltaic module after the easy-to-pull adhesive is pulled out is placed in a disassembly soaking liquid for soaking, so that the disassembly soaking liquid can flow into the gap position. After soaking for a preset time, the upper glass and the upper packaging film, and / or the lower packaging component and the lower packaging film are separated.

[0022] The beneficial effects of the present invention are:

[0023] The photovoltaic module of the present invention is provided with an easy-to-pull adhesive between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging member; when the upper glass and / or the lower packaging member are recovered, the easy-to-pull adhesive is directly pulled out, and since the upper glass and the upper packaging film, and / or the lower packaging film and the lower packaging member can be partially separated after the easy-to-pull adhesive is pulled out, the adhesion force between the adhesive film and the upper glass and the lower packaging member is small, thereby shortening the subsequent immersion time of the photovoltaic module; and when the photovoltaic module after the easy-to-pull adhesive is pulled out is immersed in a disassembly immersion liquid, the disassembly immersion liquid can flow into the easy-to-pull adhesive. At the gap position after the glue is pulled out; that is, the disassembly soaking liquid can flow between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component, so as to increase the contact area between the disassembly soaking liquid and the upper packaging film and the lower packaging film, respectively, so as to shorten the immersion time of the photovoltaic module; that is, through the joint action of the easy-to-pull glue and the disassembly soaking liquid, the adhesion between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component can be released in a shorter time, so that the upper glass and the lower packaging component can be recovered in a shorter time.

[0024] Furthermore, by providing a plurality of easy-to-pull adhesives, a plurality of gap positions can be left after the easy-to-pull adhesives are pulled out, so that the disassembly soaking liquid can flow into the plurality of gap positions after the easy-to-pull adhesives are pulled out, further increasing the contact area between the disassembly soaking liquid and the upper packaging film and the lower packaging film, respectively, thereby better shortening the soaking time of the photovoltaic module; at the same time, since a plurality of easy-to-pull adhesives are provided, most of the structures between the upper glass and the upper packaging film, and / or between the lower packaging film and the lower packaging component can be separated after the easy-to-pull adhesives are pulled out, so that the adhesion force between the film and the upper glass and the lower packaging component, respectively, is smaller, thereby shortening the subsequent soaking time of the photovoltaic module, and thus enabling more efficient recovery of the upper glass and the lower packaging component.

[0025] The photovoltaic system of the present invention, because it includes the above-mentioned photovoltaic module, can realize the recycling of the upper glass and lower packaging components in the photovoltaic module in a relatively short time, and the recycling operation is simple, convenient and efficient.

[0026] The photovoltaic module disassembly method of the present invention is based on the above-mentioned photovoltaic module disassembly. It can remove the upper glass and the lower packaging parts through the combined action of the easy-to-pull adhesive and the disassembly immersion liquid, thereby realizing the recycling of the upper glass and the lower packaging parts in a relatively short time. The photovoltaic module disassembly method is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of a photovoltaic module in the prior art;

[0028] Figure 21 is a schematic cross-sectional view of a photovoltaic module provided by the present invention (with easy-to-pull adhesive tape provided on the upper glass and the lower packaging member, respectively) in a direction perpendicular to the length of the easy-to-pull adhesive tape;

[0029] Figure 3 yes Figure 2 Schematic diagram of the structure after the easy-to-pull adhesive is pulled out;

[0030] Figure 4 1 is a schematic cross-sectional view of a photovoltaic module provided by the present invention (with easy-to-pull adhesive tape provided on the upper glass and the lower packaging member, respectively) in a direction parallel to the length of the easy-to-pull adhesive tape;

[0031] Figure 5 yes Figure 4 Schematic diagram of the structure after the easy-to-pull adhesive is pulled out;

[0032] Figure 6 It is a schematic structural diagram of the easy-to-pull adhesive provided by the present invention;

[0033] Figure 7 1 is a schematic cross-sectional view of the photovoltaic module provided by the present invention (with the easy-to-pull adhesive tape provided only at the lower packaging member) in a direction perpendicular to the length of the easy-to-pull adhesive tape;

[0034] Figure 8 1 is a schematic cross-sectional view of a photovoltaic module provided by the present invention (with an easy-to-pull adhesive tape provided only at the lower packaging member) in a direction parallel to the length of the easy-to-pull adhesive tape;

[0035] Figure 9 It is a schematic flow chart of the photovoltaic module disassembly method provided by the present invention.

[0036] Description of reference numerals:

[0037] 1'-upper glass; 2'-upper packaging film; 3'-cell; 4'-lower packaging film; 5'-lower packaging component;

[0038] 1-upper glass; 2-upper encapsulation film; 3-cell; 4-lower encapsulation film; 5-lower encapsulation component;

[0039] 6-easy-to-pull adhesive; 61-base material layer; 611-protruding portion; 62-adhesive layer;

[0040] 7- Gap position. DETAILED DESCRIPTION

[0041] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0042] Any feature disclosed in this specification, unless otherwise stated, may be replaced by an equivalent or similar alternative feature. That is, unless otherwise stated, each feature is merely an example of a set of equivalent or similar features. Throughout this specification, like reference numerals refer to like elements.

[0043] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific implementation methods.

[0044] Example 1

[0045] This embodiment provides a photovoltaic module and a photovoltaic system including the photovoltaic module. The photovoltaic module can be disassembled and recycled in a short time, and the disassembly and recycling method is simple and efficient. The working principle of the photovoltaic module is the same as that of photovoltaics in the prior art, and the working principle of the photovoltaic module is not described in detail here.

[0046] Specifically, if Figures 2 to 5 As shown, the photovoltaic module includes an upper glass 1, an upper packaging film 2, a battery cell 3, a lower packaging film 4 and a lower packaging component 5 arranged in sequence from top to bottom. The upper packaging film 2 and the lower packaging film 4 can seal the battery cell 3, and can tightly bond the upper glass 1 to the battery cell 3 through the upper packaging film 2, and can tightly bond the lower packaging component 5 to the battery cell 3 through the lower packaging film 4; and the photovoltaic module also includes an easy-to-pull adhesive 6, which is arranged between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging component 5. When the photovoltaic module after pulling out the easy-to-pull adhesive 6 is immersed in a disassembly soaking liquid, the disassembly soaking liquid can flow into the gap position 7 after the easy-to-pull adhesive 6 is pulled out.

[0047] Compared with the prior art, the photovoltaic module in this embodiment has an additional easy-to-pull adhesive 6, and the easy-to-pull adhesive 6 is made to cooperate with the disassembly soaking liquid; by arranging the easy-to-pull adhesive 6 between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging part 5; when the upper glass 1 and / or the lower packaging part 5 are recovered, the easy-to-pull adhesive 6 is directly pulled out, and after the easy-to-pull adhesive 6 is pulled out, the upper glass 1 and the upper packaging film 2, and / or the lower packaging film 4 and the lower packaging part 5 can be partially separated, so that the adhesion between the adhesive film and the upper glass 1 and the lower packaging part 5 is small, thereby shortening the subsequent soaking time of the photovoltaic module; and then soaking the photovoltaic module after the easy-to-pull adhesive 6 is pulled out. When in the disassembly immersion liquid, the disassembly immersion liquid can flow into the gap position 7 after the easy-pull adhesive 6 is pulled out; that is, the disassembly immersion liquid can flow between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging component 5, so as to increase the contact area between the disassembly immersion liquid and the upper packaging film 2 and the lower packaging film 4, respectively, so as to shorten the immersion time of the photovoltaic module; that is, through the joint action of the easy-pull adhesive 6 and the disassembly immersion liquid, the bonding force between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging component 5 can be released in a shorter time, so that the upper glass 1 and the lower packaging component 5 can be recovered in a shorter time.

[0048] Among them, the above-mentioned disassembly immersion liquid can be specifically the immersion solution for photovoltaic modules in the existing technology. The specific components of the disassembly immersion liquid are not limited here, as long as the upper glass 1 and the upper packaging film 2, as well as the lower packaging film 4 and the lower packaging part 5 can be completely separated by immersion in the disassembly immersion liquid.

[0049] It is worth noting that the invention in this embodiment focuses on the smooth recycling of the upper glass 1 and the lower packaging component 5. The mutual connection method and working process of the upper glass 1, upper packaging film 2, battery cell 3, lower packaging film 4 and lower packaging component 5 in the photovoltaic module are no longer described in detail here, and reference can be made to the photovoltaic modules in the prior art.

[0050] It is worth noting that the above-mentioned soaking of photovoltaic modules specifically refers to the photovoltaic modules after the easy-to-pull adhesive 6 is pulled out, that is, the easy-to-pull adhesive 6 will not be soaked in the disassembly soaking liquid; the easy-to-pull adhesive 6 specifically refers to a polymer material with ductility and elasticity, which can be used to bond paper, plastic, metal, glass and other materials. The easy-to-pull adhesive 6 usually does not contain solvents, is environmentally friendly and non-toxic, and has almost no residue after drying, and will not damage the bonded glass, film and other materials; the easy-to-pull adhesive 6 can be used immediately after use, and can be easily pulled off without leaving any glue stains when removed, making it easy to clean.

[0051] Specifically, since the upper glass 1 on the front of the photovoltaic module needs to receive light, the front of the photovoltaic module needs to be set as a transparent upper glass 1; while the lower packaging member 5 on the back of the photovoltaic module can be configured according to photovoltaic requirements, that is, the lower packaging member 5 can be configured as a lower glass or a backplane, without specific limitation here. In this embodiment, the lower packaging member 5 is configured as a lower glass.

[0052] Furthermore, if Figures 2 to 6 As shown, the adhesive 6 is in the form of a long strip, and the length direction of the adhesive 6 is parallel to the width direction of the photovoltaic module, so that the adhesive 6 in the form of a long strip can be directly pulled out, making the pulling out of the adhesive 6 simpler and more labor-saving. Figure 4 As shown by the arrow A in FIG, correspondingly, the length direction of the easy-to-pull adhesive 6 is as follows Figure 4 As shown by arrow A in FIG.

[0053] Specifically, if Figures 2 to 5 As shown, a plurality of easy-to-pull adhesives 6 are provided between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging member 5. The plurality of easy-to-pull adhesives 6 are spaced apart in the longitudinal direction of the photovoltaic module. Figure 2 As shown by arrow B in FIG.

[0054] It is worth noting that the spacing setting of the multiple easy-to-pull adhesives 6 mentioned above specifically refers to the multiple easy-to-pull adhesives 6 between the upper glass 1 and the upper packaging film 2 being spaced apart in the length direction of the photovoltaic module, and the multiple easy-to-pull adhesives 6 between the lower packaging film 4 and the lower packaging part 5 being spaced apart in the length direction of the photovoltaic module.

[0055] By providing a plurality of easy-to-pull adhesives 6, a plurality of gap positions 7 can be left after the easy-to-pull adhesives 6 are pulled out, so that the disassembly soaking liquid can flow into the plurality of gap positions 7 after the easy-to-pull adhesives 6 are pulled out, further increasing the contact area between the disassembly soaking liquid and the upper packaging film 2 and the lower packaging film 4, respectively, thereby better shortening the soaking time of the photovoltaic module; at the same time, since a plurality of easy-to-pull adhesives 6 are provided, most of the structures between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging component 5 can be separated after the easy-to-pull adhesives 6 are pulled out, so that the bonding force between the adhesive film and the upper glass 1 and the lower packaging component 5 is smaller, thereby shortening the subsequent soaking time of the photovoltaic module, and thus the upper glass 1 and the lower packaging component 5 can be recovered more efficiently.

[0056] In this embodiment, Figures 2 to 5As shown, a plurality of easy-to-pull adhesive strips 6 are provided between the upper glass 1 and the upper encapsulation film 2, and between the lower encapsulation member 5 and the lower encapsulation film 4. Four easy-to-pull adhesive strips 6 are provided between the upper glass 1 and the upper encapsulation film 2, and four easy-to-pull adhesive strips 6 are provided between the lower encapsulation member 5 and the lower encapsulation film 4. The number of easy-to-pull adhesive strips 6 provided is not limited.

[0057] In other embodiments, the easy-to-pull adhesive 6 may be provided only between the upper glass 1 and the upper packaging film 2, or as shown in FIG. Figure 7 and Figure 8 As shown, the easy-to-pull adhesive 6 is only provided between the lower packaging component 5 and the lower packaging film 4. There is no limitation on the specific location of the easy-to-pull adhesive 6, which needs to be determined according to specific recycling requirements.

[0058] Furthermore, the combined surface area of ​​each of the adhesive strips 6 between the upper glass 1 and the upper packaging film 2 is 30%-60% of the surface area of ​​the upper glass 1. This prevents the cumbersome operation of pulling out the adhesive strips 6 caused by an excessive number of adhesive strips 6, making the pulling out of the adhesive strips 6 simpler and faster. Furthermore, it prevents the lack of adhesive strips 6 that would result in a small number of gaps 7, thereby creating an appropriate number of gaps 7. This ensures sufficient contact area between the disassembly and immersion liquid and the upper packaging film 2, thus shortening the immersion time. In this embodiment, the combined surface area of ​​each of the adhesive strips 6 between the upper glass 1 and the upper packaging film 2 is 50% of the surface area of ​​the upper glass 1.

[0059] Specifically, the combined surface area of ​​the individual adhesive strips 6 between the lower packaging film 4 and the lower packaging component 5 is 30%-60% of the surface area of ​​the lower packaging component 5. This allows for a relatively simple and rapid pulling operation of the adhesive strips 6 while creating an appropriate number of gaps 7, thereby ensuring sufficient contact area between the disassembly and soaking liquid and the lower packaging film 4, thereby further shortening the soaking time. In this embodiment, the combined surface area of ​​the individual adhesive strips 6 between the lower packaging component 5 and the lower packaging film 4 is 50% of the surface area of ​​the lower packaging component 5.

[0060] It is worth noting that, since the upper packaging film 2 and each easy-pull adhesive 6 are all bonded to the upper glass 1, sufficient bonding force between the upper glass 1 and the upper packaging film 2 can be guaranteed; and, the number of easy-pull adhesives 6 set will not affect the bonding effect on the upper glass 1; that is, when too few easy-pull adhesives 6 are set, the upper packaging film 2 will be bonded to the upper glass 1 more correspondingly; when too many easy-pull adhesives 6 are set, the upper packaging film 2 will be bonded to the upper glass 1 less correspondingly, thereby ensuring the bonding force between the upper glass 1 and the upper packaging film 2 through the upper packaging film 2 and the easy-pull adhesive 6; similarly, the number of easy-pull adhesives 6 set will not affect the bonding effect between the lower packaging film 4 and the lower packaging component 5.

[0061] Furthermore, if Figures 2 to 6 As shown, the easy-to-pull adhesive 6 includes a base material layer 61 and an adhesive layer 62; wherein, adhesive layers 62 are respectively provided on the opposite end surfaces of the base material layer 61, that is, adhesive layers 62 are provided on the front and back surfaces of the base material layer 61, and the adhesive layer 62 can be used to bond to the upper glass 1, the upper packaging film 2, the lower packaging film 4 or the lower packaging component 5; and in the width direction of the photovoltaic module, the length of the adhesive layer 62 is equal to the width of the upper glass 1 and the width of the lower packaging component 5, that is, the adhesive layer 62 runs through the entire width of the upper glass 1, so as to ensure that the bonding effect between the adhesive layer 62 and the upper glass 1 is better; correspondingly, the adhesive layer 62 runs through the entire width of the lower packaging component 5, so as to ensure that the bonding effect between the adhesive layer 62 and the lower packaging component 5 is better.

[0062] Specifically, if Figure 4 and Figure 6 As shown, in the width direction of the photovoltaic module, at least one end of the substrate layer 61 protrudes from the adhesive layer 62, that is, the length of the substrate layer 61 is longer than the length of the adhesive layer 62, so that a protrusion 611 can be formed at the end of the substrate layer 61, so that the entire easy-to-pull adhesive 6 can be pulled out by directly pulling the protrusion 611 at the end of the substrate layer 61, making the pulling operation of the easy-to-pull adhesive 6 simple and convenient, saving time and effort. In this embodiment, one end of the substrate layer 61 protrudes from the adhesive layer 62. In other embodiments, both ends of the substrate layer 61 can be arranged to protrude from the adhesive layer 62, so that the pulling operation of the substrate layer 61 is more convenient and flexible.

[0063] Specifically, the bonding force between the adhesive layer 62 and the upper glass 1 and the upper packaging film 2, as well as the bonding force between the adhesive layer 62 and the lower packaging component 5 and the lower packaging film 4, are all smaller than the bonding force between the base material layer 61 and the adhesive layer 62; so that in the process of pulling up the easy-to-pull adhesive 6, it is ensured that the adhesive layer 62 can be detached from the upper glass 1, the upper packaging film 2, the lower packaging film 4 and the lower packaging component 5 respectively, without causing the adhesive layer 62 to be detached from the base material layer 61, thereby ensuring that the easy-to-pull adhesive 6 can be pulled out smoothly.

[0064] Example 2

[0065] This embodiment proposes a photovoltaic module disassembly method, based on the photovoltaic module in the first embodiment, such as Figure 9 As shown, the following steps are included:

[0066] S1: Pull out the easy-to-pull adhesive 6 between the upper glass 1 and the upper packaging film 2, and / or between the lower packaging film 4 and the lower packaging component 5, so as to partially separate the upper glass 1 and the upper packaging film 2 and / or between the lower packaging film 4 and the lower packaging component 5, and leave a gap 7 after the easy-to-pull adhesive 6 is pulled out;

[0067] S2: The photovoltaic module after the easy-to-pull adhesive 6 is pulled out is placed in the disassembly soaking liquid for soaking, so that the disassembly soaking liquid can flow into the gap position 7. After soaking for a preset time, the upper glass 1 and the upper packaging film 2, and / or the lower packaging part 5 and the lower packaging film 4 are completely separated.

[0068] The photovoltaic module disassembly method in this embodiment, by using the easy-to-pull adhesive 6 and the disassembly soaking liquid in combination, can make the recycling of the upper glass 1 and the lower packaging component 5 in the photovoltaic module simpler and more convenient, and can shorten the recycling time.

[0069] The specific disassembly process of the photovoltaic module disassembly method in this embodiment is as follows:

[0070] First, pull out the four easy-to-pull adhesives 6 between the upper glass 1 and the upper packaging film 2, as well as the four easy-to-pull adhesives 6 between the lower packaging film 4 and the lower packaging component 5, so as to partially separate the upper glass 1 and the upper packaging film 2, as well as the lower packaging film 4 and the lower packaging component 5, and leave a gap position 7 after the eight easy-to-pull adhesives 6 are pulled out.

[0071] Then, the photovoltaic module after the easy-to-pull adhesive 6 is pulled out is placed in the disassembly soaking liquid for soaking, so that the disassembly soaking liquid can flow into the eight gap positions 7, thereby increasing the contact area between the disassembly soaking liquid and the upper packaging film 2 and the lower packaging film 4, respectively, to shorten the soaking time.

[0072] Finally, after soaking for a preset time, under the action of the disassembly soaking liquid, the upper glass 1 and the upper packaging film 2 are completely separated, and the lower packaging component 5 and the lower packaging film 4 are completely separated, and the upper glass 1 and the lower packaging component 5 can be recycled.

[0073] It is worth noting that the above-mentioned preset time is much shorter than the soaking time of the photovoltaic module when the easy-to-pull adhesive 6 is not provided in the prior art, that is, the upper glass 1 and the lower packaging member 5 can be recovered in a shorter time. Here, the specific time of the preset time is not limited and needs to be determined according to actual working conditions.

[0074] The photovoltaic module disassembly method in this embodiment first pulls out each easy-to-pull adhesive 6 to reduce the adhesion between the upper glass 1 and the upper packaging film 2, and between the lower packaging component 5 and the lower packaging film 4, and to leave a gap position 7; then, the disassembly soaking liquid is allowed to flow into the gap position 7 after the easy-to-pull adhesive 6 is pulled out of the photovoltaic module, so as to increase the contact area between the disassembly soaking liquid and the upper packaging film 2 and the lower packaging film 4, respectively, thereby shortening the soaking time and making the recovery of the upper glass 1 and the lower packaging component 5 simpler and more efficient.

[0075] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A photovoltaic module, comprising an upper glass (1), an upper packaging film (2), a battery cell (3), a lower packaging film (4) and a lower packaging member (5) arranged in sequence from top to bottom, characterized in that: The photovoltaic module further comprises: Easy-to-pull adhesive (6), the easy-to-pull adhesive (6) is provided between the upper glass (1) and the upper packaging adhesive film (2), and / or between the lower packaging adhesive film (4) and the lower packaging member (5); The easy-to-pull adhesive (6) is in a long strip structure. A plurality of the easy-to-pull adhesives (6) are arranged between the upper glass (1) and the upper packaging film (2), and / or between the lower packaging film (4) and the lower packaging component (5). The plurality of easy-to-pull adhesives (6) are arranged at intervals in the longitudinal direction of the photovoltaic module.

2. The photovoltaic module according to claim 1, wherein The sum of the surface areas of the individual stretch adhesives (6) between the upper glass (1) and the upper packaging film (2) is 30%-60% of the surface area of ​​the upper glass (1), and the sum of the surface areas of the individual stretch adhesives (6) between the lower packaging film (4) and the lower packaging component (5) is 30%-60% of the surface area of ​​the lower packaging component (5).

3. The photovoltaic module according to claim 1, wherein: The easy-to-pull adhesive (6) is provided between the upper glass (1) and the upper packaging film (2), and between the lower packaging component (5) and the lower packaging film (4).

4. The photovoltaic module according to any one of claims 1 to 3, characterized in that The easy-to-pull adhesive (6) comprises: a substrate layer (61); Adhesive layers (62) are provided on opposite end surfaces of the substrate layer (61), respectively. In the width direction of the photovoltaic module, the lengths of the adhesive layers (62) are respectively equal to the widths of the upper glass (1) and the lower packaging component (5).

5. The photovoltaic module according to claim 4, wherein: In the width direction of the upper glass (1), at least one end portion of the base material layer (61) protrudes from the adhesive layer (62).

6. The photovoltaic module according to claim 5, wherein: The bonding forces between the adhesive layer (62) and the upper glass (1) and the upper packaging film (2), respectively, and the bonding forces between the adhesive layer (62) and the lower packaging component (5) and the lower packaging film (4), respectively, are both smaller than the bonding forces between the substrate layer (61) and the adhesive layer (62).

7. The photovoltaic module according to any one of claims 1 to 3, characterized in that The lower packaging component (5) is a lower glass or a back plate.

8. A photovoltaic system, characterized in that: The photovoltaic module comprises the photovoltaic module according to any one of claims 1 to 7.

9. A photovoltaic module disassembly method, characterized in that: The photovoltaic assembly according to any one of claims 1 to 7 comprises the following steps: S1: Pull out the easy-to-pull adhesive (6) between the upper glass (1) and the upper packaging film (2), and / or between the lower packaging film (4) and the lower packaging component (5), so as to partially separate the upper glass (1) and the upper packaging film (2), and / or between the lower packaging film (4) and the lower packaging component (5), and leave a gap (7) after the easy-to-pull adhesive (6) is pulled out; S2: The photovoltaic module after the easy-to-pull adhesive (6) is pulled out is placed in a disassembly soaking liquid for soaking, so that the disassembly soaking liquid can flow into the gap position (7). After soaking for a preset time, the upper glass (1) and the upper packaging film (2), and / or the lower packaging component (5) and the lower packaging film (4) are separated.

Images