Photovoltaic module packaging method and photovoltaic module packaging device

Abstract

The invention relates to a packaging method of a photovoltaic module and a packaging device of the photovoltaic module. The packaging method comprises the following steps: forming an adhesive layer in a preset area on the surface of a base material; a film material is attached to the adhesive layer; curing a composite interface of the adhesive layer and the membrane material; fixing a battery piece on the surface of the cured membrane material; placing a welding strip between the battery pieces; placing a back adhesive film and a back plate on the welding strip to form a to-be-laminated piece; and laminating the to-be-laminated piece, and welding the welding strip and the battery piece during lamination. The preset area on the surface of the base material is directly coated with the adhesive layer, a pre-lamination process is not needed, the manufacturing process flow is simplified, and the material cost is reduced; and curing a composite interface of the adhesive layer and the membrane material, fixing the battery piece on the surface of the membrane material, providing stable support, and avoiding displacement or warping of the battery piece.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module preparation, and in particular to a packaging method and a packaging device for photovoltaic modules. Background Art

[0002] With the continuous development of photovoltaic module manufacturing technology, the low-temperature welding process of modules has become an important direction for improving the reliability and production efficiency of cells. In view of the fact that the cells of back-contact photovoltaic modules are only welded on the back, warping, displacement and solder strip offset are prone to occur during the welding process. Various technical solutions have been proposed in the industry. Among the related technologies, one is to pre-laminate the glass and EVA film through a pre-laminator to suppress the displacement of the cells, but the pre-lamination equipment is large in size and the process is complicated, resulting in high production costs. Another method is to introduce a carrier film to fix the cells and solder strips, but this process requires additional adhesive film, which leads to increased costs and difficulty in maintenance.

[0003] In summary, the relevant processes have problems such as complex process, high cost, poor compatibility, and difficulty in rework. Summary of the invention

[0004] Based on this, it is necessary to provide a packaging method and a packaging device for photovoltaic modules to address the problems of complex packaging processes and high costs of existing photovoltaic modules.

[0005] A method for packaging a photovoltaic module, comprising:

[0006] forming an adhesive layer on a predetermined area on the surface of the substrate;

[0007] Laminating the film material to the adhesive layer;

[0008] Curing the composite interface between the adhesive layer and the membrane material;

[0009] Fixing the battery cell on the surface of the cured film material;

[0010] placing a solder ribbon between the battery cells;

[0011] Placing a backing film and a backing plate on the welding strip to form a laminated part;

[0012] The components to be laminated are laminated, and the welding ribbons and the battery cells are welded during the lamination.

[0013] In one embodiment, the step of forming an adhesive layer on a preset area on the surface of the substrate includes: obtaining a corresponding preset area on the surface of the substrate according to a preset coordinate position of the battery cell.

[0014] In one embodiment, the step of bonding the film material to the adhesive layer includes: adjusting the position of the film material by visual positioning.

[0015] In one embodiment, the step of adjusting the position of the film material by visual positioning includes: acquiring image information of the adhesive layer on the surface of the substrate, and adjusting the laminating position of the film material accordingly.

[0016] In one embodiment, the step of forming an adhesive layer on the surface of the substrate includes: the adhesive layer is formed by dot spraying, strip spraying or atomized spraying.

[0017] In one of the embodiments, the step of fixing the battery cell on the surface of the cured film material includes: fixing the battery cell by spot heating; applying local heat pressure on the surface of the film material to bond the battery cell to the film material.

[0018] In one embodiment, before the step of placing a backing film and a back plate on the welding ribbon to form a laminated component, the step includes: placing a bus bar between the battery cells;

[0019] The components to be laminated are laminated, and the welding ribbons and the battery cells are welded during the lamination, including:

[0020] The components to be laminated are laminated, the welding strips and the battery cells are welded during lamination, and the bus bars and the welding strips are welded during lamination.

[0021] In one embodiment, the adhesive is at least one of liquid silicone, liquid EVA or liquid POE; and the substrate is glass.

[0022] The above-mentioned photovoltaic module packaging method directly applies the adhesive layer to the preset area on the surface of the substrate, without the need for a pre-lamination process, thereby simplifying the manufacturing process and reducing material costs; and solidifies the composite interface between the adhesive layer and the film material to fix the battery cell on the surface of the film material, providing stable support and avoiding displacement or warping of the battery cell.

[0023] According to another object of the present invention, there is also provided a packaging device for a photovoltaic module, comprising:

[0024] An adhesive spraying unit, used for forming an adhesive layer on a preset area on the surface of the substrate;

[0025] A film material positioning unit, used to adjust the bonding position between the film material and the adhesive layer;

[0026] A curing unit, used for curing the composite interface between the adhesive layer and the film material;

[0027] A fixing unit, used for fixing the battery sheet on the surface of the film material;

[0028] A soldering ribbon placement unit, used for placing soldering ribbons between the battery cells;

[0029] A unit for laminating parts, used for placing a backing film and a back plate on the welding strip to form a laminating part;

[0030] The laminating unit is used to laminate the parts to be laminated and weld the welding ribbons and the battery cells.

[0031] In one embodiment, the film material positioning unit includes an image acquisition module and a positioning actuator, wherein the image acquisition module is used to obtain position information of the adhesive layer on the surface of the substrate; and the positioning actuator is used to adjust the position of the film material.

[0032] The packaging device of the photovoltaic module does not need to adopt a pre-lamination or coating process, which simplifies the manufacturing process, simplifies the overall structure of the packaging device, and reduces the manufacturing cost; at the same time, it avoids the displacement or warping problem of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the process of encapsulation of photovoltaic modules Figure 1 .

[0034] Figure 2 Schematic diagram of the process of encapsulation of photovoltaic modules Figure 2 .

[0035] Figure 3 Schematic diagram of the bonding between the substrate and the adhesive layer.

[0036] Figure 4 Schematic diagram of the bonding between the membrane material and the adhesive layer.

[0037] Figure 5 Schematic diagram of the bonding between the battery cell and the film material.

[0038] In the figure: 10, substrate; 20, adhesive layer; 30, film material; 40, battery cell. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0045] In the field of photovoltaic module manufacturing, the cells of back-contact photovoltaic modules are only welded on the back, which is prone to problems such as cell warping, displacement or offset. Among the related technologies, one is the pre-lamination process, which uses a release film pre-laminator to pre-laminate the glass and EVA film, and then fix the cells to suppress the warping and displacement of the cells. However, the pre-lamination machine is large in size and occupies a large area, which leads to limited production line layout and high equipment costs; the release film, as a key consumable, increases production costs; at the same time, the process has high requirements for material compatibility and is difficult to adapt to diverse component design requirements. The other is the lamination process, which solves the problems of warping and solder strip offset by introducing a carrier film to fix the cell and the solder strip in an integrated manner. However, an additional film process needs to be added, which leads to an increase in material costs; and the cured film is tightly combined with the cell, which increases the difficulty and time cost of rework.

[0046] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 . Figure 1 It is a schematic diagram of the process of a packaging method of a photovoltaic module in one embodiment of the present application.

[0047] In order to solve the above technical problems, an embodiment of the present application provides a packaging method for a photovoltaic module. According to the characteristics of a back-contact photovoltaic module, the battery cell 40 is first fixed and then the welding ribbon is welded to effectively solve the problems of warping and offset of the battery cell 40. The packaging method comprises the following steps:

[0048] S100 , forming an adhesive layer 20 in a predetermined area on the surface of the substrate 10 .

[0049] Specific, combined Figure 3 As shown, Figure 3 Schematic diagram of the bonding of the substrate 10 and the adhesive layer 20 provided in an embodiment of the present application. In some embodiments, the preset area on the surface of the substrate 10 corresponds to the preset layout of the subsequent battery cell 40. The adhesive is applied to the preset area on the surface of the substrate 10 to form the adhesive layer 20, ensuring that the thickness of the adhesive layer 20 is uniform to avoid bubbles or defects.

[0050] S200, attaching the film material 30 to the adhesive layer 20;

[0051] Specific, combined Figure 4 As shown, Figure 4 Schematic diagram of laminating a film material 30 and an adhesive layer 20 provided in an embodiment of the present application. In some embodiments, the film material 30 is laminated to the surface of the substrate 10 coated with the adhesive. During the laminating process, it is necessary to ensure that the film material 30 is in full contact with the adhesive layer 20 and to remove air bubbles to ensure the flatness and sealing of the composite interface between the film material 30, the adhesive layer 20 and the substrate 10.

[0052] S300 , curing the composite interface between the adhesive layer 20 and the film material 30 .

[0053] Specifically, the laminated film material 30 and substrate 10 assembly is placed in a heating device to heat and cure the adhesive layer 20. The curing temperature and time are adjusted according to the characteristics of the selected adhesive to ensure that the adhesive is completely cured to form a stable composite interface.

[0054] S400 , fixing the battery cell 40 on the surface of the cured film material 30 .

[0055] Specific, combined Figure 5 As shown, Figure 5 The figure is a schematic diagram of the bonding of the battery cell 40 and the film material 30 provided in one embodiment of the present application. In some embodiments, the battery cell 40 is fixed on the surface of the cured film material 30 by a spot heat treatment method according to a preset layout.

[0056] S500 , placing welding strips between the battery cells 40 .

[0057] Specifically, welding strips are placed in the gaps between adjacent battery cells 40 or at electrode positions. The welding strips are used to weld the battery cells 40 in a subsequent lamination process to form a battery string while avoiding interference with the edges of the battery cells 40 or other components.

[0058] S600, placing a backing film and a back plate on the welding tape to form a laminated part.

[0059] Specifically, the surface of the solder strip and the battery cell 40 is covered with a backing film and a back plate to form a laminated part. The backing film is used to enhance the sealing and structural strength of the laminated part, and the back plate plays a role of protection and support.

[0060] S700, laminating the components to be laminated, and welding the welding ribbons and the battery cells 40 during lamination.

[0061] Specifically, the assembled parts to be laminated are placed in a laminator, and the packaging is completed by vacuuming, heating and pressurizing the layers of materials to be tightly combined. At the same time, the welding ribbon is low-temperature welded to the battery cell 40 under high temperature and pressure to form a battery string and a complete circuit connection.

[0062] In the specific implementation process, the battery cells 40 are fixed on the surface of the cured film material 30, which can avoid the problems of battery cell 40 warping, displacement and welding ribbon offset in the welding process such as string welding of traditional battery cells 40, eliminate the coating or pre-lamination steps, and effectively reduce the production cost; and placing welding ribbons between the battery cells 40 and laminating the welding ribbons and battery cells 40 can simplify the process steps of individually welding the battery cells 40 to form a battery string, reduce the number of thermal cycles, and improve the production efficiency and reliability of photovoltaic modules.

[0063] In one embodiment, the substrate 10 is made of a material with good light transmittance such as glass, and an anti-reflection film is deposited on the surface of the substrate 10 in advance.

[0064] In one embodiment, the adhesive is a material with good adhesion, fluidity and curability, and the adhesive is at least one of liquid silicone, liquid EVA or liquid POE, so that the film material 30 can be stably attached.

[0065] In one embodiment, the film material 30 is a material with good light transmittance and sealing properties, such as EVA film, POE film, etc., and the liquid adhesive and the EVA film undergo a co-crosslinking reaction during lamination.

[0066] In one embodiment, the composite interface may be cured by thermal curing or ultraviolet light curing, and may be adaptively adjusted according to specific usage requirements.

[0067] In one embodiment, the soldering tape is a tinned copper tape or a conductive tape.

[0068] In one embodiment, a gap is left between the adhesive film, the back plate, the soldering tape and the battery cell 40 to facilitate subsequent lamination operations. The back plate is a glass or TPT composite back plate.

[0069] In one embodiment, during the lamination process, the pressure is increased to 0.5-1.2 MPa and the temperature is heated to about 150° C. The pressure and temperature are adaptively adjusted according to specific usage requirements.

[0070] Combination Figure 2 As shown, Figure 2 The present invention provides a schematic flow chart of a photovoltaic module packaging method provided in an embodiment of the present application. The present embodiment provides a photovoltaic module packaging method, comprising the following steps:

[0071] The step S100 of forming the adhesive layer 20 on a predetermined area on the surface of the substrate 10 includes:

[0072] S101 , obtaining a preset area on the surface of the substrate 10 according to the preset coordinate position of the battery cell 40 .

[0073] Specifically, the layout of the battery cells 40 on the surface of the substrate 10 , ie, the preset area, is determined according to the preset coordinate positions, so that the adhesive is coated on the substrate 10 to form the adhesive layer 20 .

[0074] In one embodiment, the step S200 of bonding the film material 30 to the adhesive layer 20 includes:

[0075] S201, adjusting the position of the film material 30 by visual positioning.

[0076] Specifically, the film material 30 is placed in the laminating device, and the actual position of the adhesive layer 20 on the surface of the substrate 10 is obtained by the visual positioning system. The visual positioning system includes a CCD camera, etc., which is used to capture the image information of the adhesive layer 20 on the surface of the substrate 10.

[0077] In one embodiment, the step S201 of adjusting the position of the film material 30 by visual positioning includes:

[0078] S202 , obtaining image information of the adhesive layer 20 on the surface of the substrate 10 , and adjusting the laminating position of the film material 30 accordingly.

[0079] Specifically, the precise position where the film 30 should be placed is calculated based on the captured image information, and the bonding position of the film 30 is adjusted accordingly to ensure that the film 30 can completely cover the adhesive layer 20 and the edges are accurately aligned, thereby avoiding errors caused by manual operation and improving bonding accuracy and efficiency.

[0080] In one embodiment, the step of forming the adhesive layer 20 on the surface of the substrate 10 includes: the adhesive layer 20 is formed by dot spraying, strip spraying or atomized spraying.

[0081] Specifically, the adhesive is applied to the preset area on the surface of the substrate 10 by dot spraying to form the adhesive layer 20. The adhesive is sprayed on the preset area on the surface of the substrate 10 by a dispensing head to form a dot array, and there is a dot spacing between the dot adhesives.

[0082] In one embodiment, the adhesive layer 20 is formed by strip spraying, wherein a linear spray head is used to continuously spray the adhesive strip along a preset track to form the strip adhesive layer 20 .

[0083] In one embodiment, the adhesive layer 20 is formed by atomization spraying, wherein the adhesive is uniformly covered on a preset area on the surface of the substrate 10 in the form of droplets through an atomization nozzle to form an adhesive layer 20 without bubbles.

[0084] In one embodiment, the step S400 of fixing the battery cell 40 on the surface of the cured film material 30 includes:

[0085] S401, fix the battery cell 40 by spot heating, apply local heat pressure on the surface of the film material 30, so that the battery cell 40 and the film material 30 are bonded; enhance the bonding strength between the battery cell 40 and the film material 30, and ensure the stability and reliability of the battery cell 40.

[0086] Specifically, a hot pressing head or a spot hot pressing machine is used to apply local hot pressing to the four corners and the center of the battery cell 40, so that the adhesive layer 20 is partially softened and adheres to the back electrode of the battery cell 40, so as to fix the battery cell 40 and avoid problems such as warping, displacement or offset of the battery cell 40. Since the spot hot method is used for fixation, the thermal stress damage of the battery cell 40 caused by the overall heating of the battery cell 40 is avoided, thereby reducing the hidden crack rate of the battery cell 40.

[0087] In one embodiment, before the step S600 of placing a backing film and a back plate on the soldering tape to form a laminated component, the method includes:

[0088] S501 , placing bus bars between the battery cells 40 .

[0089] Specifically, a bus bar is placed at the end area of ​​the battery string. One end of the welding strip overlaps the main grid line of the battery cell 40, and the other end extends to the surface of the bus bar. A conductive adhesive can be used to fix the contact point between the welding strip and the bus bar to ensure stability during lamination.

[0090] In one embodiment, the step S700 of laminating the components to be laminated and welding the welding ribbon and the battery cell 40 during lamination includes:

[0091] S701, laminating the components to be laminated, welding the welding ribbons and the battery cells 40 during lamination, and welding the bus bars and welding ribbons during lamination.

[0092] Specifically, the battery cell 40, welding strip and bus bar are covered with a backing film, and a back plate is laid on the backing film to form a laminated part. The laminated part is placed in a laminating device, evacuated, heated and pressurized. Under the action of heat and pressure, the welding strip is connected to the main grid line of the battery cell 40 through low-temperature solder, the welding strip is combined with the bus bar, and the backing film melts and flows to fill the internal gap to achieve a sealed package. The bus bar and the welding strip are welded synchronously during lamination, which reduces the separate welding process and improves production efficiency.

[0093] In one embodiment, a packaging device for a photovoltaic module is provided, which uses the packaging method for a photovoltaic module as described above, including an adhesive spraying unit, a film material 30 positioning unit, a curing unit, a curing unit, a solder strip placement unit, a laminated component unit and a laminating unit.

[0094] Specifically, the adhesive spraying unit is used to form an adhesive layer 20 in a preset area on the surface of the substrate 10; the film material 30 positioning unit is used to adjust the bonding position of the film material 30 and the adhesive layer 20; the curing unit is used to cure the composite interface between the adhesive layer 20 and the film material 30; the curing unit is used to fix the battery cell 40 on the surface of the film material 30; the welding tape placement unit is used to place welding tapes between the battery cells 40; the part to be laminated unit is used to place a backing film and a back plate on the welding tape to form a part to be laminated; the laminating unit is used to laminate the parts to be laminated and weld the welding tapes and the battery cells 40.

[0095] The packaging device of the photovoltaic module achieves efficient and automated packaging of the photovoltaic module through precise spraying, positioning, curing, fixing, ribbon placement and lamination welding. In addition, there is no need to use pre-lamination or film coating process, which simplifies the manufacturing process flow, simplifies the overall structure of the packaging device, and reduces the manufacturing cost; at the same time, the displacement or warping problem of the battery cell 40 is avoided.

[0096] In one embodiment, the adhesive spraying unit includes a dispensing head or an atomizing spray gun, which is used to spray liquid silicone, EVA or POE adhesive on the surface of the glass substrate 10 to form a dot-shaped, strip-shaped or atomized adhesive layer.

[0097] In one embodiment, the film material 30 positioning unit includes an image acquisition module and a positioning actuator. The image acquisition module is a CCD camera, which is used to capture an image of the adhesive layer 20 on the surface of the substrate 10 and identify the actual spraying position. The positioning actuator controls and adjusts the laminating position of the film material 30 according to the actual position information.

[0098] In one embodiment, the curing unit includes a thermal curing module or an ultraviolet curing module to cure the composite interface between the adhesive layer 20 and the film material 30 .

[0099] In one embodiment, the fixing unit includes a heat pressing head or a hot pressing machine, which fixes the battery cell 40 on the surface of the film material 30 by locally applying heat to the battery cell 40 .

[0100] In one embodiment, the solder ribbon placement unit includes a solder ribbon feeding mechanism and a laser cutting mechanism, which are used to automatically cut the solder ribbon and place it in the main grid line area of ​​the battery cell 40.

[0101] In one embodiment, the unit for the part to be laminated includes a back adhesive film unwinding mechanism and a back plate preventing mechanism, which are used to cover the back adhesive film on the surface of the soldering ribbon and the battery cell 40 and place the back plate to form the part to be laminated.

[0102] In one embodiment, the lamination unit includes a vacuum laminator, and during the lamination process, the welding of the soldering ribbon, the battery cell 40 and the bus bar is simultaneously completed, and the lamination packaging of the photovoltaic module is completed.

[0103] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A method for packaging a photovoltaic module, characterized in that: include: forming an adhesive layer on a predetermined area on the surface of the substrate; Laminating the film material to the adhesive layer; Curing the composite interface between the adhesive layer and the membrane material; Fixing the battery cell on the surface of the cured film material; placing a solder ribbon between the battery cells; Placing a backing film and a backing plate on the welding strip to form a laminated part; The components to be laminated are laminated, and the welding ribbons and the battery cells are welded during the lamination.

2. The method for packaging a photovoltaic module according to claim 1, characterized in that: The step of forming an adhesive layer in a preset area on the surface of the substrate includes: obtaining a corresponding preset area on the surface of the substrate according to a preset coordinate position of the battery cell.

3. The method for packaging a photovoltaic module according to claim 1, characterized in that: The step of bonding the film material to the adhesive layer includes: adjusting the position of the film material by visual positioning.

4. The method for packaging a photovoltaic module according to claim 3, characterized in that: The step of adjusting the position of the film material by visual positioning includes: acquiring image information of the adhesive layer on the surface of the substrate, and adjusting the laminating position of the film material accordingly.

5. The method for packaging a photovoltaic module according to claim 1, characterized in that: The step of forming an adhesive layer on the surface of the substrate includes: the adhesive layer is formed by dot spraying, strip spraying or atomized spraying.

6. The method for packaging a photovoltaic module according to claim 1, characterized in that: The step of fixing the battery cell on the surface of the cured film material includes: fixing the battery cell by spot heating; applying local heat pressure on the surface of the film material to make the battery cell adhere to the film material.

7. The method for packaging a photovoltaic module according to claim 1, characterized in that: Before the step of placing a backing film and a back plate on the welding ribbon to form a laminated part, the method includes: placing a bus bar between the battery cells; The components to be laminated are laminated, and the welding ribbons and the battery cells are welded during the lamination, including: The components to be laminated are laminated, the welding strips and the battery cells are welded during lamination, and the bus bars and the welding strips are welded during lamination.

8. The method for encapsulating a photovoltaic module according to any one of claims 1 to 7, characterized in that: The adhesive is at least one of liquid silicone, liquid EVA or liquid POE; and the substrate is glass.

9. A packaging device for a photovoltaic module, characterized in that: include: An adhesive spraying unit, used for forming an adhesive layer on a preset area on the surface of the substrate; A film material positioning unit, used to adjust the bonding position between the film material and the adhesive layer; A curing unit, used for curing the composite interface between the adhesive layer and the film material; A fixing unit, used for fixing the battery sheet on the surface of the film material; A soldering ribbon placement unit, used for placing soldering ribbons between the battery cells; A unit for laminating parts, used for placing a backing film and a back plate on the welding strip to form a laminating part; The laminating unit is used to laminate the parts to be laminated and weld the welding ribbons and the battery cells.

10. The packaging device of a photovoltaic module according to claim 9, characterized in that: The film material positioning unit comprises an image acquisition module and a positioning actuator, wherein the image acquisition module is used to obtain the position information of the adhesive layer on the surface of the substrate; and the positioning actuator is used to adjust the position of the film material.

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