Laminating frame and laminating device for photovoltaic module

Abstract

The utility model relates to a lamination frame for a photovoltaic module and a lamination device. The lamination frame for the photovoltaic module comprises a frame body, a binding belt and a fastening assembly. And two opposite ends of the binding belt are respectively pressed and fixed on the frame body through a fastening assembly. A counter bore is formed in the side, away from the frame body, of the pressing plate, and the head of the fastener is contained in the counter bore. In the laminating process, the pressing plate not only can press and fix the binding belt and effectively prevent the end part of the binding belt from loosening, the plate surface of the pressing plate is in contact with the high-temperature cloth and the silica gel plate, and the head part of the fastener can be accommodated through the counter bore, so that the head part of the fastener is not easily in contact with the high-temperature cloth and the silica gel plate; and the high-temperature cloth and the silica gel plate cannot be damaged due to friction, so that the cost can be reduced, and defective products can be effectively reduced. And meanwhile, the fastener cannot be abraded, so that the defects of breakage and loosening cannot occur, and the service life cycle can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic, in particular to a laminating frame for photovoltaic module and laminating device. BACKGROUND

[0002] The laminating process is to put the semi-finished photovoltaic module into the laminating device for vacuumizing and laminating, wherein the semi-finished photovoltaic module includes tempered glass, EVA (Ethylene Vinyl Acetate), solar cell, busbar, POE (Polyolefin Elastomer) and tempered glass. In the laminating process, the air bubbles in the semi-finished laminating module are discharged, the EVA is filled by pressure to perform cross-linking reaction, and the glass, solar cell and glass are bonded together to form a whole.

[0003] The laminating frame for photovoltaic module in the related art is a core component of the laminating device, which is placed around the photovoltaic module in the laminating process to prevent the photovoltaic module from being damaged due to excessive force during the laminating process. The laminating frame for photovoltaic module includes a frame body and a plurality of restraint belts, and the opposite ends of the restraint belts are connected to the frame body.

[0004] Generally, the end of the restraint belt is fixed to the frame body by rivet process. Although the rivet process is simple, the rivet is usually made of aluminum or stainless steel, which is easy to wear and loose during long-term use, and has a short service life. In addition, once the rivet is lost, the restraint belt is easy to loosen, break and fall off, and the machine needs to be stopped for inspection and cleaning, which will cause loss of production capacity. In addition, the rivet is also easy to cause damage to the high-temperature cloth and the silica gel plate at the corresponding position, thereby causing additional loss of production capacity. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a laminating frame for photovoltaic module and laminating device to solve the problems of easy wear, loosening, easy damage to the high-temperature cloth and the silica gel plate at the corresponding position, and short service life during the use of the rivet.

[0006] A laminating frame for photovoltaic module, comprising:

[0007] a frame body;

[0008] a restraint belt; and

[0009] The fastening assembly is provided with at least two fastening assemblies, and opposite ends of the restraint belt are respectively fixed on the frame by the fastening assemblies. The fastening assembly comprises a pressing plate and a fastener. The end of the restraint belt is arranged between the pressing plate and the frame. The fastener passes through the pressing plate and the restraint belt and is fixed on the frame. The side of the pressing plate away from the frame is formed with a counterbore. The head of the fastener is accommodated in the counterbore.

[0010] In one embodiment, the fastener is a screw.

[0011] In one embodiment, the head of the screw is adapted to the shape of the counterbore, and the surface of the head is flush with the surface of the pressing plate away from the frame.

[0012] In one embodiment, the counterbore is a tapered hole, a hemispherical hole or a semi-ellipsoidal hole.

[0013] In one embodiment, the fastening assembly further comprises a nut corresponding to the screw. The frame is provided with a mounting hole, and the nut is fixed in the mounting hole. The screw is connected with the nut.

[0014] In one embodiment, the pressing plate is a metal plate, and the thickness of the pressing plate is D, 1.5mm≤D≤2.5mm.

[0015] In one embodiment, the counterbore on the pressing plate is provided with at least two counterbores, and the fastener of the fastening assembly is provided with at least two fasteners. The at least two fasteners and the at least two counterbores are one-to-one corresponding. The pressing plate is fixed on the frame by the at least two fasteners.

[0016] In one embodiment, the restraint belt is provided with a plurality of restraint belts, and the plurality of restraint belts are arranged on the frame at intervals.

[0017] In one embodiment, the frame is a metal frame. The frame comprises four frame edges connected in sequence. The frame edge is provided with a hollow structure. The cross-sectional profile of the frame edge along the extension direction is rectangular.

[0018] A laminating device comprises the laminating frame for photovoltaic modules.

[0019] The above-mentioned laminated frame and laminated device for photovoltaic module, in the laminated process, the pressing plate not only plays a role of pressing and fixing the binding belt, effectively preventing the end of the binding belt from loosening, but also contacts the high-temperature cloth and the silica gel plate through the counterbore to accommodate the head of the fastener, so that the head of the fastener is not easy to contact the high-temperature cloth and the silica gel plate, and will not rub the high-temperature cloth and the silica gel plate to cause damage to the high-temperature cloth and the silica gel plate, thereby reducing the cost and effectively reducing the defective products. At the same time, the fastener will not be worn out, so it will not have the defects of breaking and loosening, thereby improving the service life cycle. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the laminated frame for photovoltaic module of an embodiment of the present application.

[0021] Figure 2 The structure diagram of the laminated frame for photovoltaic module of an embodiment of the present application. Figure 1 The enlarged structure diagram at A.

[0022] Figure 3 The structure diagram of the laminated frame for photovoltaic module of an embodiment of the present application. Figure 2 The sectional structure diagram at B-B.

[0023] 10, frame body; 101, mounting hole; 11, frame edge; 20, binding belt; 30, fastening assembly; 31, pressing plate; 311, counterbore; 32, fastener; 321, head; 33, nut. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] As described in the background, the rivet in the prior art is prone to wear and tear, loosening, and causing damage to the high-temperature cloth and the silica gel plate at the corresponding position, resulting in abnormal shutdown and loss of production capacity. The inventor found that the reason for this problem is that the rivet has a protrusion on the side away from the restraint belt, which can easily cause damage to the high-temperature cloth and the silica gel plate. In addition, the protrusion is made of aluminum or stainless steel, which is not wear-resistant and not under stress, and is prone to wear or breakage. Even the rivet can fall off. In addition, with the increasing automation and continuous updating of technology, automatic placement of pressure frames and automatic reflow lines have been used in the lamination process, so that the inspection during manual placement is cancelled. The stacking of the reflow line increases the wear of the rivet position of the pressure frame, making it more prone to rivet falling off. When the rivet falls off and causes defects, since the lamination frame is used inside the lamination device, it cannot be immediately and effectively detected, and often a batch of defective products has been produced when the problem is found.

[0026] Based on the above reasons, the present application provides a lamination frame for photovoltaic modules and a lamination device, which can improve the service life, reduce the wear of the high-temperature cloth and the silica gel plate, and improve the production capacity.

[0027] Referring to Figures 1 to 3 , Figure 1 The structure of the lamination frame for photovoltaic modules is shown. Figure 2 The structure of the lamination frame for photovoltaic modules is shown. Figure 1 The enlarged structure at A is shown. Figure 3 The structure of the lamination frame for photovoltaic modules is shown. Figure 2 The cross-sectional structure at B-B is shown. The lamination frame for photovoltaic modules provided by the present application comprises a frame body 10, a restraint belt 20, and a fastening assembly 30. The fastening assembly 30 is provided as at least two. The opposite ends of the restraint belt 20 are respectively fixed on the frame body 10 by one fastening assembly 30. The fastening assembly 30 comprises a pressing plate 31 and a fastening piece 32. The end of the restraint belt 20 is arranged between the pressing plate 31 and the frame body 10. The fastening piece 32 passes through the pressing plate 31 and the restraint belt 20, and is fixed on the frame body 10. The side of the pressing plate 31 away from the frame body 10 is formed with a counterbore 311, and the head 321 of the fastening piece 32 is accommodated in the counterbore 311.

[0028] The above-mentioned laminated frame for photovoltaic modules, in the laminating process, the pressing plate 31 not only plays a role in pressing and fixing the restraint belt 20, effectively preventing the end of the restraint belt 20 from loosening, but also contacts the high-temperature cloth and the silica gel plate through the counterbore 311, and the head 321 of the fastener 32 can be accommodated in the counterbore 311, so that the head 321 of the fastener 32 is not easy to contact the high-temperature cloth and the silica gel plate, and thus will not rub the high-temperature cloth and the silica gel plate to cause damage to the high-temperature cloth and the silica gel plate, thereby reducing the cost and effectively reducing the defective products. At the same time, the fastener 32 will not be worn out, and thus will not have the defects of breaking and loosening, thereby improving the service life.

[0029] In the embodiment, the surface of the pressing plate 31, which is away from the frame body 10, is provided as a flat surface, and the pressing plate 31 is a flat plate. The surface of the pressing plate 31 is square or other shapes, which can be adjusted and set flexibly according to actual needs, and is not limited herein. In this way, when the pressing plate 31 contacts the high-temperature cloth and the silica gel plate, the wear on the high-temperature cloth and the silica gel plate can be reduced. In addition, the pressing plate 31 is fixed to the frame body 10 by the fastener 32, and the fixing effect is stable and will not be worn out, broken or fall off, thereby avoiding the defective output caused by the falling of the rivet in the related art.

[0030] In the embodiment, the length of the pressing plate 31 is, for example, 50mm to 70mm, and is specifically, for example, 50mm, 55mm, 60mm, 65mm or 70mm, and the width of the pressing plate 31 is, for example, 15mm to 35mm, and is specifically, for example, 15mm, 20mm, 25mm, 30mm or 35mm. In this way, the surface size of the pressing plate 31 is reasonably set, and the end of the restraint belt 20 can be effectively pressed and fixed.

[0031] In some embodiments, the fastener 32 includes, but is not limited to, a screw, a rivet, a pin or a clamping piece, and the like, which can be adjusted and set flexibly according to actual needs, and is not limited herein. In the embodiment, the fastener 32 is specifically a screw, which can effectively connect and fix the pressing plate 31, the restraint belt 20 and the frame body 10 together, and the screw connection is not easy to loosen, and the assembly operation is relatively convenient. In addition, when the screw loosens, the screw can be regularly detected and reinforced, thereby improving the fastening effect.

[0032] Please refer to Figure 3 In one embodiment, the head 321 of the screw is adapted to the shape of the counterbore 311, and the surface of the head 321 is flush with the surface of the pressing plate 31 away from the frame body 10. In this way, on the one hand, the pressing plate 31 can be pressed and fixed to the frame body 10; on the other hand, the flush structure has a small friction force on the high-temperature cloth and the silica gel plate, which can prevent the head 321 from forming a convex point to rub the high-temperature cloth and the silica gel plate, causing damage to the high-temperature cloth and the silica gel plate.

[0033] In one embodiment, the counterbore 311 includes, but is not limited to, a conical hole, a hemispherical hole, or a semi-elliptical hole. In this way, the screw is tightened on the compression plate 31, so that the head 321 is completely inside the counterbore 311.

[0034] In one embodiment, the fastening assembly 30 further includes a nut 33 corresponding to the screw. The frame 10 is provided with a mounting hole 101, and the nut 33 is fixed in the mounting hole 101, and the screw is connected with the nut 33. In this way, by installing the nut 33 in the mounting hole 101 of the frame 10, the screw is connected with the nut 33, which can improve the installation stability of the screw on the frame 10, and effectively prevent the screw from loosening.

[0035] In some embodiments, the nut 33 includes, but is not limited to, being fixedly installed in the inside of the mounting hole 101 by welding or bonding. In addition, the screw and the nut 33 are spot welded on the side of the frame 10 away from the compression plate 31, so that the screw and the nut 33 are connected stably.

[0036] Please refer to Figure 3 In one embodiment, the compression plate 31 is specifically a metal plate, and the thickness of the compression plate 31 is D, 1.5mm≤D≤2.5mm. Specifically, D is, for example, 1.5mm, 2mm or 2.5mm. In this way, on the one hand, the thickness of the compression plate 31 is large, so that the rigidity is large and it is not easy to deform and damage, and it has a sufficient thickness to form the counterbore 311; on the other hand, the thickness of the compression plate 31 is not too large to cause the height of the protrusion on the surface of the frame 10 to be too large to cause wear to the high-temperature cloth and the silica gel plate.

[0037] In some embodiments, the compression plate 31 includes, but is not limited to, a stainless steel plate, a copper plate, an aluminum plate or an iron plate, etc. In this embodiment, the compression plate 31 is specifically selected to be a stainless steel plate, which has good wear resistance, high temperature resistance, and is not easy to deform and damage under stress, and has a long service life.

[0038] Please refer to Figure 3 In one embodiment, the counterbore 311 on the compression plate 31 is provided as at least two, the fastening member 32 of the fastening assembly 30 is provided as at least two, and the at least two fastening members 32 and the at least two counterbores 311 are one-to-one corresponding. The compression plate 31 is fixed on the frame 10 by the at least two fastening members 32. In this way, under the fastening action of the at least two fastening members 32, the compression plate 31 can be stably installed on the frame 10.

[0039] Please refer to Figure 1 With Figure 2 Specifically, the at least two counterbores 311 are arranged in sequence along the width direction of the restraint belt 20. In this way, the end of the restraint belt 20 can be stably compressed and fixed on the frame 10.

[0040] In one embodiment, the plurality of binding belts 20 are arranged on the frame 10 at intervals.

[0041] Referring to Figure 1 In particular, the plurality of binding belts 20 are arranged at intervals along the long direction of the frame 10, and the opposite ends of the binding belts 20 are respectively connected and fixed to the opposite long sides of the frame 10. In addition, one binding belt 20 is respectively connected to each of the four corners of the frame 10.

[0042] In one embodiment, the frame 10 is a metal frame, for example, a stainless steel frame.

[0043] Optionally, the frame 10 includes four frame edges 11 connected in sequence, and the structure enclosed by the four frame edges 11 is rectangular, so as to adapt to the lamination work of the rectangular photovoltaic module.

[0044] Referring to Figure 3 The frame edge 11 is provided in a hollow structure, so as to reduce the weight, reduce the material usage, and reduce the cost. Optionally, the wall thickness of the frame edge 11 is, for example, 0.8mm to 1.2mm, and specifically, for example, 0.8mm, 1mm or 1.2mm, etc.

[0045] Optionally, the cross-sectional profile of the frame edge 11 along the extension direction thereof is rectangular. In this way, the surface of the frame 10 is a flat surface.

[0046] Referring to Figures 1 to 3 Another embodiment of the present application provides a lamination device, which includes the lamination frame for photovoltaic module according to any one of the above embodiments.

[0047] In the lamination process, the pressing plate 31 not only presses and fixes the binding belt 20 to effectively prevent the end of the binding belt 20 from loosening, but also contacts the high-temperature cloth and the silica gel plate through the counterbore 311 to accommodate the head 321 of the fastener 32. In this way, the head 321 of the fastener 32 is not easy to contact the high-temperature cloth and the silica gel plate, and thus will not rub the high-temperature cloth and the silica gel plate to cause damage to the high-temperature cloth and the silica gel plate, thereby reducing the cost and effectively reducing the defective products. At the same time, the fastener 32 will not be worn out, and thus will not have the defects of breaking and loosening, thereby improving the service life cycle.

[0048] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0049] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0051] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0052] It is to be noted that when an element such as a layer, film, or region is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, when an element or layer is referred to as being "connected" to or "coupled" to another element or layer, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0053] Various technical features described in the above embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations are described. It will be apparent to those skilled in the art, however, that the scope of the disclosure includes all such possible combinations.

[0054] The above-described embodiments are merely illustrative for the present application and are not to be used in a limiting manner. It should be noted that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these modifications and improvements should be considered within the scope of the present application. Therefore, the patent protection scope of the present application should be defined by the claims.

Claims

1. A laminated frame for a photovoltaic module, characterized by, The photovoltaic module laminating frame comprises: a frame body (10); a binding belt (20); and a fastening assembly (30), which is provided in at least two, and opposite ends of the binding belt (20) are respectively fixed on the frame body (10) by one fastening assembly (30), the fastening assembly (30) comprises a pressing plate (31) and a fastener (32), the end of the binding belt (20) is arranged between the pressing plate (31) and the frame body (10), the fastener (32) passes through the pressing plate (31) and the binding belt (20), and is fixed on the frame body (10), a counterbore (311) is formed on the side of the pressing plate (31) away from the frame body (10), and the head (321) of the fastener (32) is accommodated in the counterbore (311).

2. The laminated frame for a photovoltaic module according to claim 1, characterized by, The fastener (32) is provided as a screw.

3. The laminated frame for photovoltaic modules according to claim 2, characterized in that, The head (321) of the screw is adapted to the shape of the counterbore (311), and the surface of the head (321) is flush with the surface of the pressing plate (31) away from the frame body (10).

4. The laminated frame for photovoltaic modules according to claim 3, characterized in that, The counterbore (311) is provided as a conical hole, a hemispherical hole or a semi-ellipsoidal hole.

5. The laminated frame for photovoltaic modules according to claim 2, characterized in that, The fastening assembly (30) further comprises a nut (33) corresponding to the screw, the frame body (10) is provided with a mounting hole (101), the nut (33) is fixed in the mounting hole (101), and the screw is connected with the nut (33).

6. The laminated frame for photovoltaic modules according to claim 2, characterized in that, The pressing plate (31) is a metal plate, and the thickness of the pressing plate (31) is D, 1.5mm≤D≤2.5mm.

7. The laminated frame for photovoltaic modules according to claim 2, characterized in that, The counterbores (311) on the pressing plate (31) are provided in at least two, the fasteners (32) of the fastening assembly (30) are provided in at least two, at least two fasteners (32) and at least two counterbores (311) are one-to-one corresponding, and the pressing plate (31) is fixed on the frame body (10) by the at least two fasteners (32).

8. The laminated frame for photovoltaic modules according to claim 1, characterized in that, The binding belt (20) is provided in a plurality, and the plurality of binding belts (20) are arranged on the frame body (10) at intervals.

9. The laminated frame for photovoltaic modules according to any of claims 1 to 8, characterized in that, The frame body (10) is a metal frame, the frame body (10) comprises four frame edges (11) connected in sequence, the frame edge (11) is provided as a hollow structure, and the cross-sectional profile of the frame edge (11) along the extension direction thereof is rectangular. 10.A laminating device comprising the photovoltaic module laminating frame according to any one of claims 1 to 9.

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