Laminating tool

Abstract

The utility model discloses a laminating tool. The laminating tool comprises a laminating frame body, the laminating frame body is of an annular frame-shaped structure, the thickness of the corner position of the laminating frame body is larger than that of the non-corner position of the laminating frame body, and the area, thicker than the non-corner position, of the corner position of the laminating frame body forms a thickening part. According to the laminating tool, the problem of appearance bubbles after the double-glass assembly is laminated can be solved, and the yield of the photovoltaic assembly is improved. Specifically, a regional different-thickness design mode is adopted, the thickness of the corner position of the laminated frame body is larger than that of the non-corner position, the thickened part of the corner position of the laminated frame body forms a thickened part, the problem of bubbles caused by a low-gram-weight adhesive film and a pre-crosslinking adhesive film after lamination can be solved, and compared with the prior art, the laminated frame is simple in structure and convenient to use. The operation difficulty is low and popularization is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a laminating tool. Background Art

[0002] In the photovoltaic field, double-glass modules have higher power generation efficiency, better reliability and lower power station system cost than single-glass modules. In order to further enhance the product value of modules, low-weight film encapsulation modules and pre-cross-linked film encapsulation modules have begun to occupy an increasing market share. Low-weight film encapsulation modules mainly use low-weight films, and the weight of low-weight films is usually ≤300g / m 2 ; Pre-crosslinked films are mostly used to encapsulate half-cell modules without main grids, and the degree of pre-crosslinking of the films is usually between 5% and 50%. For double-glass modules, the problem of bubbles in the modules after lamination has always been one of the technical difficulties, especially the use of low-weight films and pre-crosslinked films will increase the probability of bubbles in the modules after lamination. In the lamination process of double-glass module production, the lamination tooling usually adopts a frame design. By adding small strips of film with a width of more than 20mm around the laminated parts, and at the same time reducing the temperature of the laminating machine, extending the lamination time and other measures, conventional lamination frames are used to solve the bubble problems caused by the above two types of films. However, adding small strips of film will also increase the cost and time cost of the modules, and reduce the module production capacity. Utility Model Content

[0003] Based on this, it is necessary to provide a laminating tool. The laminating tool of the utility model can solve the problem of bubbles on the appearance of double-glass components after lamination, and improve the yield rate of photovoltaic components.

[0004] An embodiment of the present application provides a lamination tool.

[0005] A laminating tool comprises a laminating frame, which is an annular frame structure. The thickness of the laminating frame at the corner position is greater than the thickness at the non-corner position. The area where the laminating frame is thicker at the corner position than at the non-corner position forms a thickened portion.

[0006] In some embodiments, the laminate frame is a rectangular frame structure, the thickened portion is an L-shaped structure, a portion of the thickened portion is located at one side of the laminate frame and another portion is located at an adjacent side of the laminate frame.

[0007] In some of the embodiments, a portion of the thickened portion extends along a longer side of the laminate frame, and another portion of the thickened portion extends along a shorter side of the laminate frame.

[0008] In some embodiments, a length L1 of a portion of the thickened portion extending along a longer side of the laminate frame and a length L2 of the longer side of the laminate frame satisfy the following relationship: L1=(5%-10%)L2.

[0009] In some embodiments, a length L3 of another portion of the thickened portion extending along the shorter side of the laminate frame and a length L4 of the shorter side of the laminate frame satisfy the following relationship: L3=(5%-10%)L4.

[0010] In some embodiments, the thickness of the thickened portion is 2 mm to 3 mm.

[0011] In some embodiments, the laminate frame includes a first side and a second side, and a plurality of the first side and a plurality of the second side are connected end to end to form a frame-like structure.

[0012] In some embodiments, the first side edge and the second side edge are detachably connected via a corner code structure.

[0013] In some of the embodiments, the lamination tooling further includes a fixed mold module, which is used to be arranged inside the lamination frame and located in a gap between the lamination frame and the lamination member.

[0014] In some embodiments, the lamination tool further includes a limiting component, at least one of the limiting components is connected to the lamination frame, and the limiting component is used to limit the lamination component.

[0015] The above-mentioned laminating tooling can solve the problem of bubbles on the appearance of double-glass modules after lamination and improve the yield of photovoltaic modules. Specifically, the present application adopts a design method of different thicknesses in different regions. The thickness of the corner position of the laminating frame is greater than the thickness of the non-corner position. The thickened part of the corner position of the laminating frame forms a thickened part, which can solve the problem of bubbles after lamination caused by low-weight adhesive films and pre-cross-linked adhesive films. Compared with the existing technology, the present application has a simple structure, low operation difficulty, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0017] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0018] Figure 1 This is a schematic diagram of a laminating tooling according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the cooperation between the laminating tooling and the laminating component according to one embodiment of the utility model.

[0020] Description of Reference Numerals

[0021] 10. Lamination tooling; 100. Lamination frame; 110. Thickening portion; 120. First side; 130. Second side; 200. Fixed mold module; 300. Limiting component; 20. Lamination part. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model 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 utility model. However, the utility model 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 utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection 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 the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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. A first feature being "below", "below" or "below" a 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.

[0026] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] The present application provides a laminating tool to solve at least one of the following problems in the laminating process of double-glass module production in the prior art: (1) the problem of bubbles in the module after lamination; (2) the problem of increasing the module cost and labor time and reducing the module production capacity by adding small strips of adhesive film around the laminated parts while reducing the laminator temperature and extending the lamination time; (3) the problem of deviation of the laminated parts during the lamination process increasing the probability of bubbles in the module after lamination and reducing the module yield. The laminating tool will be described below in conjunction with the accompanying drawings.

[0029] The laminating tool 10 provided in the embodiment of the present application is exemplary, see Figure 1 As shown, Figure 1 The laminating tool 10 of the present application is a schematic diagram of the structure of the laminating tool 10 provided in the embodiment of the present application. The laminating tool 10 of the present application can be used in the laminating process in the production and preparation process of photovoltaic modules. The laminating tool 10 of the present application can be adapted to the cells including PERC, Topcon, HJT, TBC, etc.

[0030] In order to more clearly illustrate the structure of the laminating tool 10, the laminating tool 10 will be introduced below with reference to the accompanying drawings. Figure 1As shown, Figure 1 A schematic structural diagram of a laminating tool 10 provided in an embodiment of the present application.

[0031] A laminating tool 10 includes a laminating frame 100. The laminating frame 100 is an annular frame structure. The thickness of the laminating frame 100 at the corner position is greater than the thickness at the non-corner position, and the area where the laminating frame 100 is thicker than the non-corner position forms a thickened portion 110. It should be noted that the non-corner position in the present application refers to the area between two adjacent corner positions on the laminating frame 100.

[0032] In the present application, different thickness designs are adopted for different areas of the laminating frame 100, and the thickness of the corner position of the laminating frame 100 is controlled to be consistent with the conventional laminating frame. During lamination, it is about 2mm~3mm higher than the thickness of the laminating piece 20, ensuring that the glass on the laminating piece 20 will not be deformed during the laminating process. When the double-glass photovoltaic assembly is being vacuumed in the laminating machine, if the laminating tool 10 is not used or the height of the laminating tool 10 does not reach about 2mm~3mm higher than the thickness of the laminating piece 20, the limiting component 300 will press the four sides of the photovoltaic glass, and the edge of the photovoltaic glass on the light-receiving surface will be subjected to the greatest force. This uneven force will cause the edge glass to deform downward. Based on this, in the laminating tool 10 of the present application, the thickness of the non-corner position is set to be 2mm~3mm smaller than the thickness of the thickened portion 110 formed by the thickened portion at the corner position, which is convenient for the limiting component 300 to work, and the limiting component 300 will not completely press the four sides of the photovoltaic glass, reducing the stress at the four sides of the photovoltaic glass.

[0033] In some embodiments, the thickening portion 110 is approximately L-shaped, that is, the thickening portion 110 includes two linear arms, and the two linear arms are vertically arranged. One part of the thickening portion 110 is located on one side of the laminate frame 100 and the other part is located on the adjacent side of the laminate frame 100.

[0034] In some of these embodiments, see Figure 1 As shown, the laminate frame 100 is a rectangular frame structure. A portion of the thickened portion 110 extends along the longer side of the laminate frame 100 , and another portion of the thickened portion 110 extends along the shorter side of the laminate frame 100 .

[0035] In some embodiments, the length L1 of a portion of the thickened portion 110 extending along the longer side of the laminate frame 100 and the length L2 of the longer side of the laminate frame 100 satisfy the following relationship: L1 = (5%~10%) L2. If the length of L1 is less than 5% of L2, that is, the length of the thickened portion 110 in the four-corner thickened area is less than 5% of the total length of the laminate frame 100, it cannot be guaranteed that the photovoltaic glass will not deform during the lamination process; if the length of L1 is greater than 10% of L2, that is, the length of the thickened portion 110 in the four-corner thickened area is greater than 10% of the total length of the laminate frame 100, it is easy to affect the overall stress of the laminate 20 during the lamination process.

[0036] In some embodiments, the length L3 of the other part of the thickened portion 110 extending along the shorter side of the laminate frame 100 and the length L4 of the shorter side of the laminate frame 100 satisfy the following relationship: L3 = (5%~10%) L4. If the length of L3 is less than 5% of L4, that is, the length of the thickened portion 110 in the four-corner thickened area is less than 5% of the total width of the laminate frame 100, it cannot be guaranteed that the photovoltaic glass will not deform during the lamination process; if the length of L3 is greater than 10% of L4, that is, the length of the thickened portion 110 in the four-corner thickened area is greater than 10% of the total width of the laminate frame 100, it is easy to affect the overall stress of the laminate 20 during the lamination process.

[0037] In some of the embodiments, the thickness of the thickened portion 110 is 2 mm to 3 mm. During lamination, the thickened portion 110 is about 2 mm to 3 mm thicker than the laminate 20. In the present application, the thickness of the non-corner position of the laminate frame 100 is thinner than the thickened portion 110, and the laminate 20 will be subjected to greater pressure during the lamination process, which facilitates the discharge of air inside the laminate 20 and reduces the bubble phenomenon; if the thickness of the laminate frame 100 is thinner than the thickness of the laminate 20 as a whole, the photovoltaic glass is easily deformed during the lamination process, and bubbles are easily formed at the four corners of the laminate 20.

[0038] In the present application, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values ​​in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e., the minimum and maximum values) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to an integer in the numerical interval, it includes the two endpoint integers of the numerical range, and each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical range disclosed in the present application should be understood to include any and all sub-ranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows for a broad range of quantitative intervals such as percentage intervals, ratio intervals, and ratio intervals.

[0039] In some embodiments, the laminate frame 100 includes a first side 120 and a second side 130 , and a plurality of first side 120 and a plurality of second side 130 are connected end to end to form a frame structure.

[0040] In some embodiments, the first side 120 and the second side 130 are detachably connected via a corner code structure.

[0041] In some embodiments, the lamination tool 10 further includes a fixed mold module 200. The fixed mold module 200 is used to be arranged inside the lamination frame 100 and in the gap between the lamination frame 100 and the laminate 20. The fixed mold module 200 can limit the position of the laminate during the lamination process to prevent the laminate from deviating, further reduce the probability of bubbles appearing in the component after lamination, and improve the component yield.

[0042] The material of the fixed mold module 200 is required to be soft and high temperature resistant. The shape of the fixed mold module 200 can be square, round or bar, etc. The position of the fixed mold module 200 can be centered or not. When the fixed mold module 200 is a bar, the number of fixed mold modules 200 is greater than two, ensuring that at least two sides have at least one fixed mold module 200. The length of the fixed mold module 200 is required to cover 80% or more of the gap between the laminate frame and the laminate 20. If the coverage is less than 80%, it cannot play a fixing role. When the fixed mold module 200 is square, the length and width of the fixed mold module 200 is between the length and width of the laminate 20 and the length and width of the laminate frame 100, so as to ensure that the fixed mold module 200 can be embedded between the laminate frame 100 and the laminate 20.

[0043] In some embodiments, the laminating tool 10 further includes a limiting component 300. At least one limiting component 300 is connected to the laminating frame 100, and the limiting component 300 is used to limit the laminating component 20. When the laminating tool 10 cooperates with the laminating component 20, see Figure 2 As shown, Figure 2 This is a schematic diagram of the cooperation between the laminating tool 10 and the laminate 20 of one embodiment of the utility model. The laminating tool 10 can well fix the laminate 20 and form a heightening effect at the four corner positions of the laminate 20, thereby solving the problem of bubbles after lamination caused by low-weight adhesive films and pre-cross-linked adhesive films.

[0044] In some embodiments, the limiting component 300 may be a high temperature resistant cloth.

[0045] In some of these embodiments, see Figure 1 As shown, the limiting component 300 is in a strip-shaped structure.

[0046] In some of these embodiments, see Figure 1As shown, a plurality of limiting components 300 connected to the laminate frame 100 are distributed at intervals.

[0047] In summary, the above-mentioned laminating tool 10 can solve the problem of bubbles on the appearance of double-glass modules after lamination and improve the yield of photovoltaic modules. The above-mentioned laminating tool 10 can realize the use of low-weight adhesive film and pre-cross-linked adhesive film in photovoltaic modules and reduce the lamination bubbles of low-weight adhesive film and pre-cross-linked adhesive film. Specifically, the present application adopts a design method of different thicknesses in different regions. The thickness of the corner position of the laminating frame 100 is greater than the thickness of the non-corner position. The thickened part of the corner position of the laminating frame 100 forms a thickened part 110, which can solve the problem of bubbles after lamination caused by low-weight adhesive film and pre-cross-linked adhesive film in traditional technology. Compared with the existing technology, the present application has a simple structure, low difficulty in lamination operation, and is easy to promote and use.

[0048] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] 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.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A laminating tool (10), characterized in that: The laminated frame (100) is in the form of an annular frame structure, the thickness of the laminated frame (100) at the corner position is greater than the thickness at the non-corner position, and the area of ​​the laminated frame (100) that is thicker at the corner position than at the non-corner position forms a thickened portion (110); The lamination tooling (10) further comprises a fixed mold module (200), wherein the fixed mold module (200) is arranged inside the lamination frame (100) and is located in a gap between the lamination frame (100) and the lamination piece (20), and the fixed mold module (200) is used to position the lamination piece (20).

2. The laminating tool (10) according to claim 1, characterized in that: The laminated frame (100) is in a rectangular frame structure, the thickened portion (110) is in an L-shaped structure, a portion of the thickened portion (110) is located on one side of the laminated frame (100) and another portion is located on an adjacent side of the laminated frame (100).

3. The laminating tool (10) according to claim 2, characterized in that: A portion of the thickened portion (110) extends along a longer side of the laminate frame (100), and another portion of the thickened portion (110) extends along a shorter side of the laminate frame (100).

4. The laminating tool (10) according to claim 3, characterized in that: A length L1 of a portion of the thickened portion (110) extending along the longer side of the laminate frame (100) and a length L2 of the longer side of the laminate frame (100) satisfy the following relationship: L1=(5% to 10%)L2.

5. The laminating tool (10) according to claim 3, characterized in that: The length L3 of the other part of the thickened portion (110) extending along the shorter side of the laminate frame (100) and the length L4 of the shorter side of the laminate frame (100) satisfy the following relationship: L3=(5%-10%)L4.

6. The laminating tool (10) according to any one of claims 1 to 5, characterized in that: The thickness of the thickened portion (110) is 2 mm to 3 mm.

7. The laminating tool (10) according to any one of claims 1 to 5, characterized in that: The laminate frame (100) comprises a first side edge (120) and a second side edge (130), and a plurality of the first side edges (120) and a plurality of the second side edges (130) are connected end to end to form a frame-like structure.

8. The laminating tool (10) according to claim 7, characterized in that: The first side edge (120) and the second side edge (130) are detachably connected via an angle code structure.

9. The laminating tool (10) according to any one of claims 1 to 5 and 8, characterized in that: The lamination tool (10) further comprises a limiting component (300), at least one of the limiting components (300) is connected to the lamination frame (100), and the limiting component (300) is used to limit the position of the lamination component (20).

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