Laminated frame and laminating device

Abstract

The embodiment of the utility model provides a laminated frame, which is used for assisting the lamination operation of a to-be-laminated piece, and comprises an outer frame body surrounding the to-be-laminated piece; the protruding part is arranged on one side of the inner wall of the outer frame body, and the protruding part is arranged on one side of the inner wall of the outer frame body and extends into a gap formed between the upper-layer glass and the lower-layer glass of the to-be-laminated piece. According to the laminated frame provided by the embodiment of the utility model, the problems of battery string displacement, empty glue and water vapor permeation during lamination are solved only by changing the structure of the laminated frame. The embodiment of the invention further provides a laminating device.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of photovoltaic module preparation, and in particular to a laminated frame and a laminating device. Background Art

[0002] With the exhaustion of traditional energy and the attention paid to environmental issues by human beings, in order to achieve sustainable development of energy and environment, solar power generation as a clean energy has been greatly developed. Solar panels are devices that collect solar energy and convert it into electrical energy.

[0003] At present, double-glass photovoltaic modules have gradually gained attention due to their excellent performance. Double-glass photovoltaic modules have shown unique advantages in the actual application of photovoltaic power stations. Compared with traditional modules, they are mainly reflected in high power generation, reduced snail pattern, reduced PID attenuation, extended module life cycle, good weather resistance, environmental protection and easy recycling, etc. At the same time, double-glass photovoltaic modules have a wider range of applications, such as fish-light complementarity, desert power stations, and tidal flat power stations.

[0004] During the lamination process of double-glass photovoltaic modules, problems such as cell string displacement, empty glue, and water vapor leakage may occur. The existing solution mainly solves this problem by changing the lamination pressure, temperature, and time parameters. The disadvantage of this solution is that if the adjustment results in other problems such as the degree of cross-linking of the glue film not meeting the requirements or hidden cracks in the cell, the adjustment parameters are unavailable, so the adjustment of lamination parameters is complicated and inefficient. Utility Model Content

[0005] To achieve the above objectives, the embodiments of the present application provide a laminated frame and a laminated device, which solve the problems of battery string displacement, empty glue and water vapor penetration during lamination by simply changing the laminated frame structure.

[0006] In a first aspect, an embodiment of the present application provides a laminating frame for assisting the lamination operation of a to-be-laminated component, comprising:

[0007] An outer frame, surrounding the components to be laminated;

[0008] The raised portion is arranged on one side of the inner wall of the outer frame body, and the raised portion is arranged on one side of the inner wall of the outer frame body and extends into the gap formed between the upper glass and the lower glass of the laminated part.

[0009] Furthermore, the protrusions are spaced apart from the battery cell assembly of the component to be laminated at a preset distance.

[0010] Furthermore, the thickness of the protrusion is smaller than the height of the gap between the upper glass and the lower glass of the part to be laminated, and is larger than the height of the cell assembly of the part to be laminated.

[0011] Furthermore, the raised portion is in the shape of an elongated strip, the top surface of the raised portion abuts against the upper glass of the laminated component, and the distance between the bottom surface of the raised portion and the bottom surface of the outer frame is consistent with the thickness of the lower glass of the laminated component.

[0012] Furthermore, the thickness of the outer frame is greater than the thickness of the laminated component.

[0013] Furthermore, the outer frame is rectangular, and the outer frame includes relatively arranged long frames and relatively arranged short frames, the long frames are connected to the short frames in pairs, and the raised portions are arranged on the inner sides of the side walls of the long frames and / or the short frames. The area of ​​the rectangular region enclosed by the raised portions is smaller than the area of ​​the upper glass and / or the lower glass of the laminated component, and larger than the area of ​​the battery cell assembly of the laminated component.

[0014] Furthermore, the long frame and / or the short frame of the outer frame is provided with a connecting groove or a buckle portion, and the long frame is fixedly connected to the short frame through the buckle fit between the buckle portion and the connecting groove.

[0015] Furthermore, the protrusion and the long frame and / or short frame of the outer frame are integrally formed.

[0016] Furthermore, the surface of the raised portion is provided with an anti-stick coating.

[0017] In a second aspect, an embodiment of the present application provides a laminating device, comprising a laminator and a laminating frame as described in any one of the above items, wherein the laminating frame is arranged below the laminator.

[0018] The outer frame of the laminated frame provided in the embodiment of the present application surrounds the part to be laminated, and the raised portion of the laminated frame is arranged on one side of the inner wall of the frame, and extends to the gap formed between the upper glass and the lower glass of the part to be laminated, and the space of the gap is occupied by the raised portion, so that the flow space of the encapsulation film can be reduced, thereby suppressing the displacement of the battery cell assembly, preventing the photovoltaic assembly from being scrapped, and improving the yield of the photovoltaic assembly. In addition, since the raised portion of the laminated frame extends to the gap formed between the upper glass and the lower glass of the part to be laminated, when the photovoltaic assembly is framed and glued, after the raised portion of the laminated frame is removed, the potting glue will enter the reserved space, thereby reducing the risk of water vapor infiltration into the photovoltaic assembly, and there is no need to perform a glue filling process, and the workload of the operator will not be increased. The laminated frame provided in the embodiment of the present application can solve the problems of battery assembly displacement, empty glue and water vapor penetration that occur during the lamination operation by only changing the structure of the laminated frame without adjusting the process parameters, thereby improving the production yield of the photovoltaic assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the planar structure of a laminated frame provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 AA cross-sectional structural diagram of a laminated frame;

[0022] Figure 3 yes Figure 1 A schematic diagram of the planar structure of the laminated frame in use;

[0023] Figure 4 for Figure 3 A schematic diagram of the BB cross-sectional structure of the laminated frame in use;

[0024] Figure 5a to Figure 5c for Figure 1 Schematic diagram of the planar structure of the long frame or the short frame of the laminated frame.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] In the production of double-glass photovoltaic modules, lamination is a very critical process. The lamination frame is required to assist in the lamination of double-glass photovoltaic modules. The main function of the lamination frame is to position the glass, protect the processing surface and absorb excess adhesive. Therefore, the lamination frame is an indispensable part of the lamination process of double-glass modules. However, since the lamination temperature is about 150°C, under the action of the internal stress of the glass material and the heat shrinkage force of the packaging material, the glass will bend upward on all sides. At the same time, the melting of the packaging material will produce flow, and the flow direction of the vacuum gas will drive the battery string or battery cell assembly to move under the pressure exerted by the silicone plate. After the lamination operation is completed, when the photovoltaic module cools down, the distance between the battery cell assemblies will change, and even cause the module to be scrapped.

[0033] The laminating operation of the laminator is mainly divided into the following steps: the upper and lower chambers are evacuated at the same time; the upper chamber is inflated to apply pressure to the silicone plate through the gas, thereby applying pressure to the laminated part in the lower chamber and maintaining it for a period of time; the chamber is evacuated and the lower chamber is inflated, so that the air pressure inside the lower chamber is consistent with the atmospheric pressure; the laminated part is taken out. During the lamination operation, the lower glass of the laminated part faces down into the laminator, and above the lower glass are the encapsulation film, the cell assembly, the encapsulation film, and the upper glass. When laminating photovoltaic modules, the silicone plate is under pressure to evenly distribute the encapsulation material inside the laminated part. However, since the thickness of the area with cells is greater than the thickness of the area without cells, plus the thickness of the laminated part itself, the distance from the edge of the encapsulation film to the cell assembly is unevenly pressurized and small, which is prone to empty glue.

[0034] In addition, when photovoltaic modules are framed and glued, in order to prevent excessive potting glue from overflowing onto the glass, the amount of potting glue used on the front of the frame is often less. Therefore, water vapor can easily enter the photovoltaic modules from the front of the frame. If there is empty glue in the distance from the edge of the packaging film to the surrounding solar cells, the impact will be greater.

[0035] Therefore, refer to Figure 1 and Figure 2The embodiment of the present application provides a laminating frame 100 for assisting the laminating operation of the component 10 to be laminated, and the laminating frame 100 includes an outer frame body 101 and a protruding portion 102, wherein the outer frame body 101 surrounds the component 10 to be laminated, and the protruding portion 102 is arranged on one side of the inner wall of the outer frame body 101, and the protruding portion 102 is arranged on one side of the inner wall of the outer frame body 101, and extends into the gap 13 formed between the upper glass 11 and the lower glass 12 of the component 10 to be laminated.

[0036] Specifically, Figure 3 and Figure 4 As shown, the laminated part 10 is usually a double-glass photovoltaic module. The laminated part 10 includes an upper glass 11, a packaging film 15, a cell assembly 14, a packaging film 15 and a lower glass 12 from top to bottom. The cell assembly 14 is arranged between the upper glass 11 and the lower glass 12 and is located in the center. Therefore, at the edge of the laminated part 10, a gap 13 is formed between the upper glass 11 and the lower glass 12. The packaging film 15 is arranged between the upper glass 11 and the lower glass 12 and surrounds the cell assembly 14. The packaging film 15 is usually a hot-melt colloid. The function of the packaging film 15 is to protect and fix the cell assembly 14. When the laminated part 10 is laminated, the gap 13 will increase the flow space of the packaging film 15, thereby causing the displacement of the cell assembly 14.

[0037] The outer frame 101 of the laminated frame 100 provided in the embodiment of the present application surrounds the laminated component 10, and the raised portion 102 of the laminated frame 100 is arranged on one side of the inner wall of the outer frame 101, and extends to the gap 13 formed between the upper glass 11 and the lower glass 12 of the laminated component 10. The space in the gap 13 is occupied by the raised portion 102, thereby reducing the flow space of the packaging film 15, thereby inhibiting the displacement of the battery cell assembly 14, preventing the photovoltaic assembly from being scrapped, and improving the yield of the photovoltaic assembly.

[0038] In addition, since the raised portion 102 of the laminated frame 100 extends into the gap 13 formed between the upper glass 11 and the lower glass 12 of the laminated component 10, when the photovoltaic module is framed and glued, after the raised portion 102 of the laminated frame 100 is removed, the potting glue will enter the reserved space, thereby reducing the risk of water vapor infiltrating into the photovoltaic module, and there is no need for a glue filling process, which will not increase the workload of the operator.

[0039] In summary, the laminated frame 100 provided in the embodiment of the present application can solve the problems of battery component displacement, empty glue and water vapor penetration occurring during the lamination operation by only changing the structure of the laminated frame without adjusting the process parameters, thereby improving the production yield of photovoltaic components.

[0040] In some embodiments of the present application, the outer frame 101 and the raised portion 102 are generally made of metal materials such as stainless steel or aluminum alloy to ensure the strength of the outer frame 101 and the raised portion 102 .

[0041] Reference Figure 4 In some embodiments of the present application, the protrusion 102 is arranged at a preset distance from the cell assembly 14 of the laminated component 10, that is, the protrusion 102 is located in contact with the cell assembly 14, thereby avoiding the protrusion 102 from bumping or damaging the cell assembly 14 during installation, preventing the photovoltaic assembly from being scrapped, and further improving the yield of the photovoltaic assembly.

[0042] It should be noted that the preset distance is a distance preset before the lamination operation, so as to ensure that the protrusion 102 does not contact the battery cell assembly 14 on the one hand, and to ensure that there is enough space between the protrusion 102 and the battery cell assembly 14 to accommodate the packaging film 15 on the other hand. The specific parameters of the preset distance depend on the size of the overall structure and are not limited here.

[0043] Reference Figure 4 In some embodiments of the present application, the thickness of the protrusion 102 is less than the height of the gap 13 between the upper glass 11 and the lower glass 12 of the laminate 10 to be laminated, and is greater than the height of the battery cell assembly 14 of the laminate 10 to be laminated.

[0044] Specifically, the outer frame 101 of the laminated frame 100 provided in the embodiment of the present application surrounds the part to be laminated 10, and the raised portion 102 of the laminated frame 100 is arranged on one side of the inner wall of the outer frame 101, and extends to the gap 13 formed between the upper glass 11 and the lower glass 12 of the part to be laminated 10, and the space of the gap 13 is occupied by the raised portion 102. When the part to be laminated 10 is subjected to the lamination operation, the area around the edge of the encapsulation film 15 to the cell assembly 14 is occupied by the raised portion 102, and the pressure applied to the part to be laminated located in the lower chamber after the upper chamber of the laminator is inflated can be evenly applied to the upper glass 11, avoiding uneven pressure on the area from the edge of the encapsulation film 15 to the periphery of the cell assembly 14, thereby preventing the occurrence of empty glue, thereby reducing the risk of water vapor infiltration into the photovoltaic module, and no subsequent glue filling operation is required, which will not increase the workload of the operator.

[0045] Refer again Figure 4 In some embodiments of the present application, the raised portion 102 is in the shape of a long strip, the top surface of the raised portion 102 abuts against the upper glass 11 of the laminated component 10, and the distance between the bottom surface of the raised portion 102 and the bottom surface of the outer frame 101 is consistent with the thickness of the lower glass 12 of the laminated component 10.

[0046] Specifically, the raised portion 102 needs to be filled into the gap 13 formed at the edges of the upper glass 11 and the lower glass 12 of the laminated component. Therefore, the raised portion 102 is in the shape of a long strip, so that it can match the aforementioned gap 13, ensuring that the flow space of the packaging film 15 can be reduced, thereby suppressing the displacement of the battery cell assembly 14, preventing the photovoltaic assembly from being scrapped, and improving the yield of the photovoltaic assembly. In addition, the top surface of the raised portion 102 abuts against the upper glass 11 of the laminated component 10, and the distance between the bottom surface of the raised portion 102 and the bottom surface of the outer frame 101 is consistent with the thickness of the lower glass 12 of the laminated component 10. When the laminated part 10 is undergoing a lamination operation, the area from the edge of the packaging film 15 to the periphery of the battery cell assembly 14 is occupied by the protrusion 102. After the upper chamber of the laminator is inflated, part of the pressure applied to the laminated part located in the lower chamber can be borne by the protrusion 102, thereby avoiding uneven pressure on the area from the edge of the packaging film 15 to the periphery of the battery cell assembly 14, thereby preventing the occurrence of empty glue, thereby reducing the risk of water vapor infiltrating into the photovoltaic module, and eliminating the need for subsequent glue filling operations, which will not increase the workload of the operator and can improve the production efficiency of the photovoltaic module.

[0047] Reference Figure 4 In some embodiments of the present application, the thickness of the outer frame 101 is greater than the thickness of the laminated component 10, thereby ensuring that the outer frame 101 has sufficient strength to stably fix the laminated component 10, thereby ensuring the smooth progress of the lamination operation.

[0048] Refer again Figure 3 In some embodiments of the present application, the outer frame 101 is rectangular, and the outer frame 101 includes relatively arranged long frames 111 and relatively arranged short frames 112, the long frames 111 and the short frames 112 are connected to each other, and the protrusions 102 are arranged on the inner side of the side walls of the long frames 111 and / or the short frames 112. The area of ​​the rectangular region enclosed by the protrusions 102 is smaller than the area of ​​the upper glass 11 and / or the lower glass 12 of the laminated component 10, and is larger than the area of ​​the battery cell assembly 14 of the laminated component 10.

[0049] Specifically, the raised portion 102 is arranged on the inner side of the side wall of the long frame 111 and / or the short frame 112. The area of ​​the rectangular region enclosed by the raised portion 102 is smaller than the area of ​​the upper glass 11 and / or the lower glass 12 of the laminated component 10, and larger than the area of ​​the cell assembly 14 of the laminated component 10, thereby ensuring that the raised portion 102 can extend into the gap 13 between the upper glass 11 and the lower glass 12 of the laminated component 10, and will not bump or damage the cell assembly 14, thereby solving the problems of cell assembly displacement, empty glue and water vapor penetration occurring during the lamination operation, thereby improving the production yield of photovoltaic modules.

[0050] Reference Figure 5a to Figure 5cIn some embodiments of the present application, the long frame 111 and / or the short frame 112 of the outer frame 101 are provided with a connecting groove 113 or a snap-on portion (not shown), and the long frame 111 is fixedly connected to the short frame 112 through the snap-on fit between the snap-on portion and the connecting groove 113.

[0051] That is, the long frame 111 and / or the short frame 112 of the outer frame 101 are fixed together by the snap fit of the connecting groove 113 or the snap fit of the snap part. For example, Figure 5a to Figure 5c As shown, the connection groove 113 can be set at the end of the short frame 112, and correspondingly, the end of the long frame 111 is provided with a buckle portion, and the long frame 111 is fixedly connected to the short frame 112 through the buckle fit of its buckle portion and the connection groove 113, and vice versa. Therefore, the laminated frame 100 provided in the embodiment of the present application can realize the assembly of the outer frame 101 through the above-mentioned configuration and only a simple structure.

[0052] Further, in some embodiments of the present application, the raised portion 102 is an integrally formed structure with the long frame 111 and / or the short frame 112 of the outer frame 101. The raised portion 102 and the outer frame 101 can be made of the same material, such as stainless steel or aluminum alloy, and the raised portion 102 and the long frame 111 and / or the short frame 112 of the outer frame 101 can be integrally formed by injection molding of a metal material, which has a simple structure and low manufacturing cost.

[0053] In addition, in some embodiments of the present application, an anti-stick coating is provided on the surface of the protrusion 102, thereby preventing the adhesive film from being melted and adhering to the protrusion 102, thereby facilitating subsequent operations of the operator. The anti-stick coating is usually a PP (Polypropylene, polypropylene) or PE (Polyethylene, polyethylene) coating.

[0054] The embodiment of the present application also provides a laminating device, including a laminating machine and the laminating frame 100 as described above, and the laminating frame 100 is arranged below the laminating machine. The specific structure of the laminating frame 100 refers to the above embodiment. Since the laminating frame 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0055] When laminating double-glass photovoltaic modules, the laminator performs lamination operations on the parts to be laminated, and the laminating frame 100 is used to assist the lamination operation of the parts to be laminated. The functions of the laminating frame are mainly to position the glass, protect the processing surface, and absorb excess adhesive. The outer frame 101 of the laminating frame 100 provided in the embodiment of the present application surrounds the part to be laminated 10, and the raised portion 102 of the laminating frame 100 is arranged on one side of the inner wall of the outer frame 101 and extends to the gap 13 formed between the upper glass 11 and the lower glass 12 of the part to be laminated 10. The space of the gap 13 is occupied by the raised portion 102, thereby reducing the flow space of the encapsulating film 15, thereby inhibiting the displacement of the battery cell assembly 14, preventing the photovoltaic module from being scrapped, and improving the yield of the photovoltaic module.

[0056] In addition, since the raised portion 102 of the laminated frame 100 extends into the gap 13 formed between the upper glass 11 and the lower glass 12 of the laminated component 10, when the photovoltaic module is framed and glued, after the raised portion 102 of the laminated frame 100 is removed, the potting glue will enter the reserved space, thereby reducing the risk of water vapor infiltrating into the photovoltaic module, and there is no need for a glue filling process, which will not increase the workload of the operator.

[0057] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A laminating frame for assisting the laminating operation of a laminated part, characterized in that: include: An outer frame, surrounding the components to be laminated; The raised portion is arranged on one side of the inner wall of the outer frame body, and the raised portion is arranged on one side of the inner wall of the outer frame body and extends into the gap formed between the upper glass and the lower glass of the laminated part.

2. The laminate frame according to claim 1, characterized in that: The protrusions are spaced apart from the battery cell assembly of the to-be-laminated component by a preset distance.

3. The laminate frame according to claim 2, characterized in that: The thickness of the protrusion is smaller than the height of the gap between the upper glass and the lower glass of the laminated part, and is larger than the height of the battery cell assembly of the laminated part.

4. The laminate frame according to claim 3, characterized in that: The raised portion is in the shape of an elongated strip, the top surface of the raised portion abuts against the upper glass of the laminated component, and the distance between the bottom surface of the raised portion and the bottom surface of the outer frame is consistent with the thickness of the lower glass of the laminated component.

5. The laminate frame according to claim 4, characterized in that: The thickness of the outer frame is greater than the thickness of the laminated member.

6. The laminate frame according to claim 5, characterized in that: The outer frame is rectangular, and includes relatively long frames and relatively short frames, the long frames are connected to the short frames in pairs, the raised portions are arranged on the inner sides of the side walls of the long frames and / or the short frames, and the area of ​​the rectangular region enclosed by the raised portions is smaller than the area of ​​the upper glass and / or the lower glass of the laminated component, and larger than the area of ​​the battery cell assembly of the laminated component.

7. The laminate frame according to claim 6, characterized in that: The long frame and / or the short frame of the outer frame are provided with a connecting groove or a buckle portion, and the long frame is fixedly connected to the short frame through the buckle cooperation between the buckle portion and the connecting groove.

8. The laminate frame according to claim 7, characterized in that: The protrusion is an integrally formed structure with the long frame and / or the short frame of the outer frame.

9. The laminate frame according to claim 8, characterized in that: The surface of the raised portion is provided with an anti-stick coating.

10. A laminating device, characterized in that: It comprises a laminator and a laminating frame as claimed in any one of claims 1 to 9, wherein the laminating frame is arranged below the laminator.

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