Laminated member and lamination method for photovoltaic modules

Abstract

The invention provides a laminated member for a photovoltaic module and a laminating method. The laminated member comprises a base; the limiting column is arranged on the base, and a clamping groove part is arranged on a column body of the limiting column; and the limiting buckle is provided with a connecting part and a pressing part, the connecting part is matched with the clamping groove part to be used for positioning the limiting buckle, and the pressing part extrudes the upper surface of the photovoltaic module in the process of laminating the photovoltaic module. According to the technical scheme, when the photovoltaic module is laminated in a simple mode, the problem of over-voltage lamination can be effectively avoided, the problem of bubbles generated during lamination is solved, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of solar energy technology, and in particular to a laminated component and a lamination method for a photovoltaic module. Background Art

[0002] The existing conventional lamination methods are:

[0003] S1, the component runs to the laminator loading platform;

[0004] S2, placing the lamination frame;

[0005] S3. Manually adjust the distance from the lamination frame to the periphery of the component to ensure that the distance from the four sides of the lamination frame to the component is consistent;

[0006] S4, laminating;

[0007] The defects of the above conventional lamination methods are:

[0008] 1. The existing problem of edge sealing solution before lamination is that the materials of each layer are not in close contact, resulting in the thickness of the component after lamination being 6-6.5mm (front and back glass use 2mm thick glass), and the edge sealing tape will form a cavity during the edge sealing process, which is used for glue overflow. The length of the tape at the cavity position is about 10mm (such as Figure 1 ); however, the thickness of the component after lamination is about 4.9mm, which is 1.5mm lower than the whole; therefore, the state of the edge of the component during the lamination process is:

[0009] S1, during the vacuum stage of a cavity, the glass is heated and warped, causing the edge to open by about 4mm;

[0010] S2, one-cavity lamination reduces the thickness of the component, closes the edge and some glue overflow occurs, but the glue overflow is small and fails to fill the cavity of the edge-sealing tape. No cross-linking occurs at this stage and the film is in a molten state;

[0011] S3. After entering the second chamber, the temperature continues to rise. The glass warps again at high temperature. The edge deformation is significantly greater than the middle deformation, and the back glass warp is significantly greater than the front glass warp, causing the edge to open and the molten adhesive film to tear, resulting in a large number of bubbles, or lack of adhesive at the edge (such as Figure 2 );

[0012] S4. The two-cavity lamination compacts the glass, but the edges are over-pressed due to bubbles and lack of glue, resulting in low thickness or residual bubbles;

[0013] 2. Manually adjusting the position of the lamination frame cannot ensure that the distance from the lamination frame to the four sides of the component is consistent, resulting in inconsistent pressure on each side, which will cause uneven component thickness and uneven packaging effects, affecting component reliability. Summary of the invention

[0014] Based on this, in order to overcome the defects of the prior art, the present application provides a laminating component and a laminating method for photovoltaic modules, which can solve the problem of edge opening around the module caused by the different warping of the upper and lower glasses during the lamination process, thereby solving the problems of bubbles, overpressure, and low thickness at the edge of the module, and improving the reliability of the module; at the same time, since there is an extension part on the base for limiting the position, the distance from the lamination frame to the four sides of the module can be ensured to be consistent, solving the problem of uneven thickness around the module and different lamination effects caused by improper placement of the lamination frame.

[0015] In order to achieve the above object, the present invention adopts the following technical solutions:

[0016] In one aspect, the present application provides a laminated component for a photovoltaic module, comprising:

[0017] Base;

[0018] A limiting column, the limiting column is arranged on the base, and a clamping groove portion is arranged on the column body of the limiting column;

[0019] The limiting buckle has a connecting portion and a pressing portion, wherein the connecting portion cooperates with the slot portion to position the limiting buckle, and the pressing portion presses the upper surface of the photovoltaic component during the lamination process of the photovoltaic component.

[0020] Furthermore, in the laminated component for photovoltaic modules provided in the present application, the base and the limiting column are an integrated component.

[0021] Furthermore, in the laminated component for photovoltaic modules provided in the present application, the base has a containing structure; the limiting column also has a fixing portion, and the fixing portion cooperates with the containing structure to fix the limiting column.

[0022] Further, in the laminated component for photovoltaic modules provided in the present application, the containing structure has an internal thread, the fixing portion of the limiting column has an external thread, and the internal thread and the external thread cooperate with each other to fix the limiting column on the base;

[0023] Alternatively, the fixing portion and the accommodating structure cooperate with each other to adopt a detachable plug-in structure.

[0024] Further, in the laminated component for photovoltaic modules provided in the present application, the slot portion has a plurality of first protrusions and first grooves which are continuously staggered and arranged along the axial direction of the limiting column;

[0025] The first protrusion and the first groove are both parallel to the bottom surface of the base;

[0026] The connecting portion is sleeved on the slot portion and has a first latch tongue;

[0027] The first protrusion can guide the first latch tongue to move downward and hinder the first latch tongue from moving upward, and the first groove is used to embed the first latch tongue.

[0028] Furthermore, in the laminated structure for photovoltaic modules provided in the present application, the connecting part is sleeved in the slot part; the slot part is a cylinder with a continuous external thread, and the connecting part has an internal thread matching therewith, and the height relative to the base can be adjusted along the slot part.

[0029] Further, in the laminated component for photovoltaic modules provided in the present application, the limiting column is a cylinder having a notch portion, and the slot portion is adjacent to the notch portion;

[0030] The clamping groove portion has a plurality of continuously staggered second protrusions and second grooves arranged along the axial direction of the limiting column;

[0031] The second protrusion and the second groove are both parallel to the bottom surface of the base;

[0032] The connecting portion is sleeved on the slot portion and has a second latch tongue;

[0033] The second protrusion can prevent the second latch tongue from moving up and down, and the second groove is used to embed the second latch tongue;

[0034] When the second latch tongue is rotated to the notch, the connecting part can be moved up and down; after the connecting part is moved to a suitable height, the second latch tongue is rotated into the groove corresponding to the suitable height to fix the connecting part.

[0035] Further, in the laminated member for a photovoltaic module provided in the present application, the base has a first extension portion and a second extension portion;

[0036] The first extension portion is used to be placed below the lower surface of the photovoltaic module during lamination of the photovoltaic module;

[0037] The second extension portion is arranged on a side of the base away from the first extension portion, and is used for positioning and matching with the lamination frame.

[0038] Further, in the laminated component for a photovoltaic module provided in the present application, the first extension portion has a first flat portion and a first slope transition portion, wherein the first slope transition portion is located between the first flat portion and the base;

[0039] The second extension portion has a second flat portion and a second slope transition portion, wherein the second slope transition portion is located between the second flat portion and the base.

[0040] On the other hand, the present invention also provides a lamination method and the application of the lamination method in the manufacturing process of a double-glass photovoltaic module. The lamination component used in the lamination method has the lamination component as described above. When laminating the double-glass photovoltaic module, the problem of lamination overpressure can be effectively avoided and the problem of bubbles generated during lamination can be solved. By setting an extension part on the base, the problem of uneven thickness around the module and different lamination effects caused by improper placement of the lamination frame is solved. In addition, when using a laminator with the lamination jig for lamination, the lamination steps can be effectively simplified and work efficiency can be improved.

[0041] Beneficial effects of this application:

[0042] The present application discloses an auxiliary lamination component used in the lamination process of photovoltaic modules, the main structure of which includes a base; a limiting column, the limiting column is arranged on the base, and a slot portion is arranged on the column body of the limiting column; a limiting buckle, the limiting buckle has a connecting portion and a pressing portion, wherein the connecting portion cooperates with the slot portion to position the limiting buckle, and the pressing portion presses the upper surface of the photovoltaic module during the lamination process of the photovoltaic module; therefore, the warping of the glass edge can be limited, so that the glass edge cannot be opened to cause bubbles and lack of glue, and after lamination, it is ensured that there is no overpressure and bubble problem at the edge of the module; in addition, since there is an extension component on the buckle base for limiting the lamination frame, the distance from the lamination frame to the four sides of the module can be guaranteed to be consistent, which solves the problem of uneven thickness around the module and different lamination effects caused by improper placement of the lamination frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the structure of the photovoltaic module after edge sealing and before lamination;

[0044] Figure 2 It is a schematic diagram of the prior art for the glass edge warping during the two-chamber high-temperature lamination of photovoltaic modules, causing openings, resulting in tearing of the adhesive film and introduction of bubbles;

[0045] Figure 3 A cross-sectional view before laminating a photovoltaic module using the laminating member in the present application;

[0046] Figure 4 A cross-sectional view of a photovoltaic module after lamination using the laminating member in the present application;

[0047] Figure 5 is a schematic structural diagram of a laminated component in one embodiment;

[0048] Figure 6 for Figure 5 A front view of the limiting buckle of the laminated component in the embodiment;

[0049] Figure 7is a schematic structural diagram of a laminated component in another embodiment;

[0050] Figure 8 for Figure 7 A front view of the limiting buckle of the laminated component in the embodiment;

[0051] Fig. 9 for Figure 7 A schematic diagram of the structure of the laminated component in the embodiment without the limiting buckle;

[0052] Fig.10 for Figure 7 A schematic diagram of a laminated component in an embodiment in which the limit buckle is in a position where it can move up and down at a notch;

[0053] Fig.11 A three-dimensional schematic diagram of various components for laminating a photovoltaic module using the laminating component of the present application;

[0054] Fig.12 A schematic top view of various components of a photovoltaic module laminated using the laminating member of the present application;

[0055] Fig.13 A bottom view schematic diagram of various components of a photovoltaic module laminated by using the laminating member of the present application;

[0056] Fig.14 It is a schematic cross-sectional view of various components used to laminate photovoltaic modules using the laminating component of the present application.

[0057] Description of labels:

[0058] Photovoltaic module 1; back glass 11; back adhesive film 12; battery cell 13; front adhesive film 14; front glass 15; butyl adhesive 16; edge sealing tape 17;

[0059] Laminated component 2; base 21; first extension portion 211; first flat portion 2111; first slope transition portion 2112; second extension portion 212; second flat portion 2121; second slope transition portion 2122; accommodating structure 213; limiting column 22; slot portion 221; first protrusion 2211; first groove 2212; second protrusion 2213; second groove 2214; fixing portion 222; notch portion 223; limiting buckle 23; connecting portion 231; first tongue 2311; second tongue 2312; pressing portion 232;

[0060] Laminated frame 3;

[0061] Bubbles 4. DETAILED DESCRIPTION

[0062] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] In one aspect, the present application provides a laminated component 2 for a photovoltaic module 1, comprising:

[0064] Base 21;

[0065] A limiting column 22, the limiting column 22 is arranged on the base 21, and a clamping groove portion 221 is arranged on the column body of the limiting column 22;

[0066] The limiting buckle 23 has a connecting portion 231 and a pressing portion 232 , wherein the connecting portion 231 cooperates with the slot portion 221 to position the limiting buckle 23 , and the pressing portion 232 presses the upper surface of the photovoltaic component 1 during the lamination process of the photovoltaic component 1 .

[0067] Specifically, the present application provides a laminated component 2 for laminating a photovoltaic module 1 to improve the durability, mechanical strength and performance stability of the module. In this application, in order to illustrate the technical solution, the glass and adhesive film conventionally used in the industry are selected, combined with Figure 1 After the photovoltaic module 1 is laminated and edge-sealed, its structure includes back glass 11, back adhesive film 12, battery cell 13, front adhesive film 14, front glass 15, butyl adhesive 16 and edge-sealing tape 17. Before laminating the photovoltaic module 1, the laminating component 2 needs to be assembled. Figure 5-Figure 10 The laminating component 2 in the embodiment of the present application is composed of a base 21, a limiting column 22 and a limiting buckle 23, wherein the base 21 is adhered and fixed to the laminating machine loading platform on one hand, and is fixed to the limiting column 22 on the other hand to support the limiting column 22. The limiting column 22 is provided with a slot portion 221, which is used to cooperate with the limiting buckle 23 to fix the limiting buckle 23. The limiting buckle 23 has a connecting portion 231 that cooperates with the slot portion 221 of the limiting column 22. When the limiting buckle 23 is set at a suitable height of the limiting column 22, the outwardly extending pressing portion 232 of the limiting buckle 23 can press against the upper surface of the photovoltaic component 1, thereby applying pressure thereto (refer to Figure 3-Figure 4 ).

[0068] Reference Figure 3-Figure 4 The lamination method and effect of the specific photovoltaic module 1 and the lamination mechanism 2 are described below:

[0069] The front glass 15 of the photovoltaic module 1 is made of ultra-white embossed semi-tempered single velvet coated glass with a thickness of 2.0 mm; the back glass 11 is made of ultra-white embossed back white semi-tempered glass with three holes and a thickness of 2.0 mm; the front and back adhesive films 12 or 14 are both made of 440g / m2 EVA adhesive film;

[0070] The main steps of lamination are:

[0071] S1, moving the photovoltaic module 1 to the laminator loading platform;

[0072] S2, sticking double-sided tape on the upper surfaces of the left and right sides of the base 21 on which the limiting column 22 is installed;

[0073] S3, installing the base 21 on the edge of the photovoltaic module 1, and sticking the base 21 on the edge of the photovoltaic module 1 with a double-sided adhesive tape 17;

[0074] S4, installing the limit buckle 23, adjusting the position of the limit buckle 23 so that the plane of the pressing part 232 contacts the rear glass 11, and using tape to stick the pressing part 232 of the limit buckle 23 on the glass;

[0075] S5, placing the laminating frame 3, adjusting the positional relationship between the laminating frame 3 and the base 21, and ensuring that the distance between the laminating frame 3 and the base 21 is equal;

[0076] S6, laminating;

[0077] After lamination is completed, the laminated component 2 is disassembled for next use;

[0078] After lamination is completed, the thickness range of the photovoltaic module 1 is within 0.18mm (the range of the photovoltaic module 1 without using the laminating component 2 is 0.3-0.6mm), the edge thickness at the same position and the thickness at the cell position are within 0.13mm (the difference in thickness between the edge and the middle without using the laminating component 2 is 0.3mm), the photovoltaic module 1 without butyl rubber 16 has no bubbles in appearance, the glue overflow is uniform, and there is no obvious large and small edges. The photovoltaic module 1 with butyl rubber 16 has no external bubbles, and no surface changes of butyl rubber 16 and bubbles 4 in the cross-section after the bevel are found.

[0079] The laminating component 2 can significantly improve the problems of glass opening, bubbles, glue deficiency, edge overpressure and uneven thickness that occur during lamination;

[0080] Therefore, the laminating component 2 for the photovoltaic module 1 of the present application includes: a base 21; a limiting column 22, the limiting column 22 is arranged on the base 21, and a slot portion 221 is arranged on the column body of the limiting column 22; a limiting buckle 23, the limiting buckle 23 has a connecting portion 231 and a pressing portion 232, wherein the connecting portion 231 cooperates with the slot portion 221 to position the limiting buckle 23, and the pressing portion 232 presses the upper surface of the photovoltaic module 1 during the lamination process of the photovoltaic module 1. The present application can solve the edge opening problem caused by the different warping of the upper and lower glasses around the photovoltaic module 1 during the lamination process through a simple and convenient laminating mechanism 2, thereby solving the problems of bubbles, overpressure, and low thickness at the edge of the photovoltaic module 1, and improving the reliability of the photovoltaic module 1.

[0081] Furthermore, in the laminated component 2 for the photovoltaic module 1 provided in the present application, the base 21 and the limiting column 22 are an integral component. That is, in the present embodiment, the base 21 and the limiting column 22 of the laminated component 2 are an integrally formed structure and cannot be separated. Of course, the base 21 and the limiting column 22 can also be fixed by welding. Welding refers to a method of connecting two or more parts to each other by melting metal or non-metallic materials. Common welding methods include arc welding, gas welding, laser welding, etc.

[0082] Further, in the laminated component 2 for the photovoltaic module 1 provided in the present application, the base 21 has a containing structure 213; the limiting column 22 also has a fixing portion 222, and the fixing portion 222 cooperates with the containing structure 213 to fix the limiting column 22. That is, in the embodiment of the present application, the base 21 and the limiting column 22 both adopt a detachable structure to achieve flexible assembly and replacement of the two structures.

[0083] Further, in the laminated component 2 for the photovoltaic module 1 provided in the present application, the containing structure 213 has an internal thread, and the fixing portion 222 of the limiting column 22 has an external thread, and the internal thread and the external thread cooperate with each other to fix the limiting column 22 on the base 21. That is, in this embodiment of the present application, by fixing the limiting column 22 and the base 21 in a threaded manner, the depth of the limiting column 22 screwed into the base 21 can be adjusted, and the flexible assembly of the limiting column 22 and the base 21 can also be achieved. Threaded connection is a method of connecting parts together through the friction between threads, which has the characteristics of reliable connection and easy disassembly.

[0084] Furthermore, in the laminated component 2 for photovoltaic modules provided in the present application, the fixing portion 222 cooperates with the containing structure 213 to adopt a detachable plug-in structure. Plug-in is a method of inserting or inserting parts into each other through the matching size and shape between the parts. Common plug-in structures include pin plug-in, card plug-in, etc. The plug-in structure is characterized by simple connection and convenient plug-in and pull-out. A snap-in structure can also be used, which is a method of snapping parts together through the matching of geometric shapes and forces between the parts.

[0085] Of course, other mechanical connection methods may also be used to fix the limiting column 22 on the base 21. Common mechanical connection methods include pin connection, key connection, spring connection, sleeve connection, etc.

[0086] Further, in the laminated component 2 for the photovoltaic module 1 provided in the present application, the slot portion 221 has a plurality of continuously staggered first protrusions 2211 and first grooves 2212 arranged along the axial direction of the limiting column 22;

[0087] The first protrusion 2211 and the first groove 2212 are both parallel to the bottom surface of the base 21;

[0088] The connecting portion 231 is sleeved in the slot portion 221 and has a first latching tongue 2311;

[0089] The first protrusion 2211 can guide the first latch tongue 2311 to move downward and hinder the first latch tongue 2311 from moving upward, and the first groove 2212 is used to embed the first latch tongue 2311 .

[0090] Specifically, refer to Figure 5 and Figure 6In this embodiment, the slot portion 221 of the laminated member 2 is formed into a cube or other shapes. Taking a cube as an example, a plurality of continuous first protrusions 2211 and first grooves 2212 are provided on all or part of one face of the cube to form a staggered structure. The plane where the first protrusions 2211 and the first grooves 2212 are located is parallel to the bottom surface of the base 21 of the laminated member 2, that is, when the limit buckle 23 is installed on the limit column 22, the pressing portion 232 of the limit buckle 23 can be parallel to the upper surface of the photovoltaic module 1, thereby ensuring uniform pressing force. Furthermore, in the present embodiment, the connection portion 231 of the limiting buckle 23 has a first latch 2311, which is a telescopic member, and the first protrusion 2211 of the slot portion 221 that cooperates with the limiting buckle 23 is arranged with an upper end inclined downward, and the lower end surface is a plane, so that the first latch 2311 can gradually shrink under the guidance of the inclined upper end surface under the premise of being subjected to a downward external force, so as to pass over the first protrusion 2211 and enter the first groove 2212 below, so as to embed the limiting buckle 23 in the first groove 2212. In other words, the limiting buckle 23 is moved downward along the slot portion 221 by applying downward pressure, and when the pressing portion 232 of the limiting buckle 23 reaches a suitable height, the limiting buckle 23 is stopped from being pushed downward, so that the first latch 2311 of the connection portion 231 of the limiting buckle 23 is embedded in the corresponding first groove 2212. When the limiting column 22 has other shapes, the connecting portion 231 of the limiting buckle 23 is adjusted to have a corresponding shape so that it can be sleeved on the limiting column 22 .

[0091] Furthermore, in the laminated structure 2 for the photovoltaic module 1 provided in the present application, the connecting portion 231 is sleeved in the slot portion 221; the slot portion 221 is a cylinder with a continuous external thread, and the connecting portion 231 has an internal thread matching therewith, and can adjust the height relative to the base 21 along the slot portion 221.

[0092] Specifically, in this embodiment, by setting the limiting column 22 of the laminating component 2 as a cylinder with an external thread, and setting an internal thread in the opening of the connecting part 231 of the limiting buckle 23 to cooperate therewith, the height of the limiting buckle 23 relative to the base 21 can be adjusted by rotation, thereby realizing the lamination of the photovoltaic component 1.

[0093] Further, in the laminated component 2 for the photovoltaic module 1 provided in the present application, the limiting column 22 is a cylinder having a notch portion 223, and the slot portion 221 is adjacent to the notch portion 223;

[0094] The slot portion 221 has a plurality of continuously staggered second protrusions 2213 and second grooves 2214 arranged along the axial direction of the limiting column 22;

[0095] The second protrusion 2213 and the second groove 2214 are both parallel to the bottom surface of the base 21;

[0096] The connecting portion 231 is sleeved in the slot portion 221 and has a second latching tongue 2312;

[0097] The second protrusion 2213 can prevent the second latching tongue 2312 from moving up and down, and the second groove 2214 is used to embed the second latching tongue 2312 .

[0098] When the second latch 2312 is rotated to the notch 223 , the connection part 231 can be moved up and down; after the connection part 231 is moved to a suitable height, the second latch 2312 is rotated into the second groove 2214 corresponding to the suitable height to fix the connection part 231 .

[0099] Specifically, refer to Figure 7-Figure 10 As shown, the limiting column 22 in this embodiment is a cylinder with a notch 223. The slot portion 221 adjacent to the notch 223 has a plurality of continuous second protrusions 2213 and second grooves 2214 forming a staggered structure. The plane where the second protrusions 2213 and the second grooves 2214 are located is parallel to the bottom surface of the base 21 of the laminated component 2, that is, when the limiting buckle 23 is installed on the limiting column 22, the clamping portion 232 of the limiting buckle 23 can be parallel to the upper surface of the photovoltaic component 1, thereby ensuring uniform clamping force. In this embodiment, refer to Fig.10 It can be seen that when the second latch 2312 of the connecting portion 231 is moved to the notch 223 , the vertical movement of the connecting portion 231 on the limiting column 22 will not be hindered, and the limiting buckle 23 can be moved to a suitable height.

[0100] The front glass 15 of the photovoltaic module 1 is made of ultra-white embossed semi-tempered single velvet coated glass with a thickness of 2.0 mm; the back glass 11 is made of ultra-white embossed back white semi-tempered glass with three holes and a thickness of 2.0 mm; the front and back adhesive films 12 or 14 are both made of 440g / m2 EVA adhesive film;

[0101] The main steps of lamination are:

[0102] S1, moving the photovoltaic module 1 to the laminator loading platform;

[0103] S2, sticking double-sided tape on the upper surface of the base 21 on both sides of the base 21 where the limiting column 22 is installed;

[0104] S3, installing the base 21 on the edge of the photovoltaic module 1, and sticking the base 21 on the edge of the photovoltaic module 1 with a double-sided adhesive tape 17;

[0105] S4, install the limiting buckle 23, adjust the second latch 2312 of the limiting buckle 23 to the notch 223 of the limiting column 22, move the limiting buckle 23, make the plane of the pressing part 232 of the limiting buckle 23 contact the rear glass 11, and use tape to stick the pressing part 232 of the limiting buckle 23 on the glass;

[0106] S5, placing the laminating frame 3, adjusting the positional relationship between the laminating frame 3 and the base 21, and ensuring that the distance between the laminating frame 3 and the base 21 is equal;

[0107] S6. Perform lamination.

[0108] The limiting column 22 in this embodiment is an irregular circle, and a recessed plane is set on one side of the slot portion 221. After lamination is completed, the limiting column 22 (when the limiting column 22 and the base 21 are detachably connected) or the limiting buckle 23 is rotated, and the second tongue 2312 of the limiting buckle 23 is moved out of the slot portion 221 of the limiting column 22, and rotated to the notch portion 223 on the side of the slot portion 221, and then directly pulled upward to the high position slot for next use.

[0109] After lamination is completed, the thickness range of the photovoltaic module 1 is less than 0.16mm (the range of the photovoltaic module 1 without using the laminating component 2 is 0.3-0.6mm), the edge thickness at the same position and the thickness at the cell position are less than 0.14mm (the difference between the edge and the middle thickness of the photovoltaic module 1 without using the laminating component 2 is 0.3mm), the photovoltaic module 1 without butyl rubber 16 has no bubbles in appearance, the glue overflow is uniform, and there is no obvious large and small edges. The photovoltaic module 1 with butyl rubber 16 has no external bubbles, and no surface changes of butyl rubber 16 and bubbles in the cross-section after the bevel are found.

[0110] The laminating component 2 can significantly improve the problems of glass opening, bubbles, glue deficiency, edge overpressure and uneven thickness that occur during lamination.

[0111] Further, in the laminated component 2 for the photovoltaic assembly 1 provided in the present application, the base 21 has a first extension portion 211 and a second extension portion 212;

[0112] The first extension portion 211 is used to be placed under the front glass 14 during the lamination process of the photovoltaic module 1;

[0113] The second extension portion 212 is disposed on a side of the base 21 away from the first extension portion 211 , and is used for positioning and matching with the lamination frame 3 .

[0114] Reference Figure 3-4 , Figure 5 , Figure 9-14It can be seen that, by providing an extension part, namely, a first extension part 211 and a second extension part 212, on the front and rear sides of the base 21, they are used to respectively cooperate and fix with the front glass of the photovoltaic module 1 and the laminating frame 3. By adopting the structure of the extension part, the placement of the laminating frame 3 and the photovoltaic module 1 is guided, and the distance from the laminating frame 3 to the four sides of the photovoltaic module 1 is made consistent.

[0115] Furthermore, in the laminated structure 2 for the photovoltaic module 1 provided in the present application, the first extension portion 211 has a first flat portion 2111 and a first slope transition portion 2112, wherein the first slope transition portion 2112 is located between the first flat portion 2111 and the base 21; the second extension portion 212 has a second flat portion 2121 and a second slope transition portion 2122, wherein the second slope transition portion 2122 is located between the second flat portion 2121 and the base 21.

[0116] Reference Figure 7 As shown, in this embodiment, the first extension part 211 and the second extension part 212 are set to have a sloped limiter. The first extension part 211 has a first flat part 2111 and a first slope transition part 2112, wherein the first slope transition part 2112 is located between the first flat part 2111 and the base 21; the second extension part 212 has a second flat part 2121 and a second slope transition part 2122, wherein the second slope transition part 2122 is located between the second flat part 2121 and the base 21. Since there is a sloped limiter on the base 21, it is equivalent to forming a clamping position, which can ensure that the distance from the lamination frame 3 to the four sides of the photovoltaic module 1 is consistent, and solve the problem of uneven thickness and different lamination effects around the photovoltaic module 1 caused by improper placement of the lamination frame 3.

[0117] On the other hand, the present invention also provides a lamination method and the application of the lamination method in the manufacturing process of a double-glass photovoltaic module 1. The lamination component 2 used in the lamination method has the structure as described above. When laminating the double-glass photovoltaic module 1, the problem of lamination overpressure can be effectively avoided and the problem of bubbles generated during lamination can be solved. By setting an extension portion on the base 21, the problem of uneven thickness and different lamination effects around the photovoltaic module 1 caused by improper placement of the lamination frame 3 is solved. In addition, when laminating, the lamination component 2 with the lamination jig can effectively simplify the lamination steps and improve work efficiency.

[0118] Specifically, the method steps of laminating using the laminated member 2 having the first extension portion 211 and the second extension portion 212 of the present invention include:

[0119] S1, moving the photovoltaic module 1 to the laminator loading platform;

[0120] S2, attaching double-sided tape to the upper surfaces of the first extension portion 211 and the second extension portion 212 of the base 21 on which the limiting column 22 is installed;

[0121] S3, installing the base 21 on the edge of the photovoltaic module 1, and sticking the first extension portion 211 of the base 21 on the edge of the photovoltaic module 1 with a double-sided adhesive tape 17;

[0122] S4, installing the limit buckle 23, according to the specific structure of the laminated component 2, using a corresponding method to adjust the tongue of the limit buckle 23 to a corresponding height with the limit column 22, or rotating the limit buckle 23, so that the plane of the pressing part 232 of the limit buckle 23 contacts the rear glass 11, and using tape to stick the pressing part 232 of the limit buckle 23 on the glass;

[0123] S5, placing the laminating frame 3, adjusting the laminating frame 3 to press the second extension portion 212 of the base 21, pressing the laminating frame 3 at the position of the base 21 so that the laminating frame 3 and the second extension portion 212 of the base 21 are adhered by double-sided tape; when there is no second extension portion 212, adjusting the positional relationship between the laminating frame 3 and the base 21 to ensure that the distance between the laminating frame 3 and the base 21 is equal;

[0124] S6. Perform lamination.

[0125] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laminated component for a photovoltaic module, characterized in that: include: Base; A limiting column, wherein the limiting column is arranged on the base, and a clamping groove portion is arranged on the column body of the limiting column; The limiting buckle has a connecting portion and a pressing portion, wherein the connecting portion cooperates with the slot portion to position the limiting buckle, and the pressing portion presses the upper surface of the photovoltaic component during the lamination process of the photovoltaic component.

2. The laminated component for photovoltaic modules according to claim 1, characterized in that: The base and the limiting column are an integrated component.

3. The laminated component for photovoltaic modules according to claim 1, characterized in that: The base has a containing structure; the limiting column also has a fixing portion, and the fixing portion cooperates with the containing structure to fix the limiting column.

4. The laminated component for photovoltaic modules according to claim 3, characterized in that: The containing structure has an internal thread, and the fixing portion of the limiting column has an external thread, and the internal thread and the external thread cooperate with each other to fix the limiting column on the base; Alternatively, the fixing portion cooperates with the accommodating structure to adopt a detachable plug-in structure.

5. The laminated component for photovoltaic modules according to any one of claims 1 to 4, characterized in that: The clamping groove portion has a plurality of first protrusions and first grooves which are continuously staggered and arranged along the axial direction of the limiting column; The first protrusion and the first groove are both parallel to the bottom surface of the base; The connecting portion is sleeved on the slot portion and has a first latch tongue; The first protrusion can guide the first latch tongue to move downward and hinder the first latch tongue from moving upward, and the first groove is used to embed the first latch tongue.

6. The laminated component for a photovoltaic module according to any one of claims 1 to 4, characterized in that: The connecting portion is sleeved on the slot portion; the slot portion is a cylinder with continuous external threads, and the connecting portion has internal threads matching therewith, and the height relative to the base can be adjusted along the slot portion.

7. The laminated component for a photovoltaic module according to any one of claims 1 to 4, characterized in that: The limiting column is a cylinder with a notch portion, and the slot portion is adjacent to the notch portion; The clamping groove portion has a plurality of continuously staggered second protrusions and second grooves arranged along the axial direction of the limiting column; The second protrusion and the second groove are both parallel to the bottom surface of the base; The connecting portion is sleeved on the slot portion and has a second latch tongue; The second protrusion can prevent the second latch tongue from moving up and down, and the second groove is used to embed the second latch tongue; When the second latch tongue is rotated to the notch portion, the connecting portion can be moved up and down; after the connecting portion is moved to a suitable height, the second latch tongue is rotated into a second groove corresponding to the suitable height to fix the connecting portion.

8. The laminated component for a photovoltaic module according to any one of claims 1 to 4, characterized in that: The base has a first extension portion and a second extension portion; The first extension portion is used to be placed below the lower surface of the photovoltaic assembly during lamination of the photovoltaic assembly; The second extension portion is disposed on a side of the base away from the first extension portion, and is used for positioning and matching with the lamination frame.

9. The laminated component for a photovoltaic module according to claim 8, characterized in that: The first extension portion has a first flat portion and a first slope transition portion, wherein the first slope transition portion is located between the first flat portion and the base; The second extension portion has a second flat portion and a second slope transition portion, wherein the second slope transition portion is located between the second flat portion and the base.

10. A lamination method, characterized in that: Photovoltaic modules are laminated using the laminated component described in any one of claims 1 to 9.

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