Frame and photovoltaic module

Abstract

The utility model provides a frame and a photovoltaic assembly, the frame comprises a supporting seat and a limiting strip arranged on the outer side of the supporting seat, the length direction of the supporting seat and the length direction of the limiting strip are consistent with the length direction of the frame, the supporting seat is provided with a supporting surface used for supporting the bottom edge of a laminated piece of the photovoltaic assembly, and the inner side of the top of the limiting strip is provided with a first rubber blocking strip. The length direction of the first glue blocking strip is consistent with the length direction of the limiting strip, the limiting surface of the limiting strip limits the side edge of the laminated piece, a main glue containing groove is formed in the upper surface layer of the limiting strip, and the height size of the limiting strip does not exceed the thickness of the laminated piece. The main glue containing groove of the limiting strip is filled with the bonding glue, the overall strength and the structural stability of the photovoltaic module can be improved, the first glue blocking strip is arranged on the inner side of the limiting strip, the bonding glue can be limited in the main glue containing groove, the bonding glue is prevented from overflowing from the main glue containing groove, dust accumulation at the edge of the laminated piece can be better prevented, and the service life of the photovoltaic module is prolonged. And the overall power generation efficiency of the photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the photovoltaic field, in particular to a frame and a photovoltaic component comprising the frame. Background Art

[0002] The frame of a photovoltaic module is generally a rectangular frame composed of two long frames and two short frames spliced ​​together by corner codes. The cross-section of the frame of a photovoltaic module is mostly C-shaped, that is, the frame completely covers the edges of the laminate on all sides, and the frame A surface (that is, the pressing surface of the top of the frame used to press down and fix the laminate) is higher than the surface of the laminate, which causes water and dust to accumulate at the frame of the photovoltaic module, ultimately leading to a decrease in power generation efficiency.

[0003] To solve this problem, there are A-side-less frames on the market. That is, the frame eliminates the A-side structure used to cover the top edge of the laminate, and only supports the laminate at the bottom and limits the laminate on all sides, and is connected to the laminate by adhesive. However, the use of this A-side-less frame will reduce the structural strength of the frame, causing the back panel to rupture; and because of installation reasons, not only does it fail to completely solve the problem of water and dust accumulation at the frame of the photovoltaic module, but it also reduces its own ability to remove accumulated water and dust to some extent.

[0004] Specifically, Figure 1 The figure shows a schematic diagram of the structure of a photovoltaic module in the related art, wherein the frame 1 adopts a design without an A surface, and the position of the laminate 20 is maintained only by the baffles around the frame 1 and the adhesion of the adhesive 30. However, the adhesive 30 often overflows from the gap between the baffles of the frame 1 and the side of the laminate 20 when the laminate 20 is installed. The overflowed adhesive 30 surrounds the laminate 20, affecting the drainage and sewage discharge capabilities of the laminate 20 in rainy and snowy weather, and thus Figure 2 As shown, the light-entering surface of the laminate 20 is covered with dirt such as dust 2, which blocks the light and affects the power generation efficiency of the photovoltaic module. In addition, the thickness of the adhesive layer between the laminate 20 and the baffle of the frame 1 is small, resulting in insufficient buffering and insufficient bonding strength between the two, which makes the laminate 20 easy to break at the frame 1, and the laminate 20 is easy to separate from the frame 1. In other words, the photovoltaic module using the frame 1 not only still has dust accumulation, but also has low structural strength and stability.

[0005] Therefore, how to improve the structural strength of photovoltaic modules while avoiding dust accumulation in laminated parts has become a technical problem that needs to be solved urgently in this field. Utility Model Content

[0006] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a frame and a photovoltaic module including the frame, which can improve the structural strength of the photovoltaic module and prevent dust accumulation on the laminated parts, thereby ensuring the power generation efficiency of the photovoltaic module.

[0007] To achieve the above-mentioned purpose, as one aspect of the utility model, a frame applied to a photovoltaic module is provided, wherein the frame includes a support seat and a limit strip arranged on the outside thereof, the length directions of the support seat and the limit strip are consistent with the length direction of the frame, the support seat has a support surface for supporting the bottom edge of the laminate of the photovoltaic module, a first stop rubber strip is arranged on the inner side of the top of the limit strip, the length direction of the first stop rubber strip is consistent with the length direction of the limit strip, the limit surface of the limit strip is used to limit the side of the laminate, a main glue groove is formed on the upper surface of the limit strip, and the height dimension of the limit strip does not exceed the thickness of the laminate.

[0008] Optionally, the support seat and the limiting strip are formed as one piece.

[0009] Optionally, the frame is made of aluminum.

[0010] Optionally, the frame is made by an extrusion process.

[0011] Optionally, in the direction from the first rubber stop strip to the supporting surface, the main rubber containing groove includes a groove top, a groove middle and a groove bottom connected in sequence, wherein the groove top is adjacent to the first rubber stop strip, the groove bottom is adjacent to the supporting surface, the depth of the groove middle is greater than the depth of the groove bottom, and the depth of the groove middle is greater than the depth of the groove top.

[0012] Optionally, the bottom surface of the main glue containing groove is an arc-shaped surface.

[0013] Optionally, a first auxiliary glue groove is formed on the upper surface of the support seat, the length direction of the first auxiliary glue groove is consistent with the length direction of the frame, and the first auxiliary glue groove is located at the intersection of the limit strip and the support surface, so that the first auxiliary glue groove is connected to the main glue groove.

[0014] Optionally, a second auxiliary glue containing groove is further formed on the upper surface of the support seat, and the second auxiliary glue containing groove is spaced apart from the first auxiliary glue containing groove and is farther away from the limiting strip than the first auxiliary glue containing groove.

[0015] Optionally, the second auxiliary glue-containing groove is formed at the outer edge of the support surface, and the outer edge of the support surface is parallel to the intersection of the limiting strip and the support surface.

[0016] The support seat also includes a second rubber blocking strip, the length direction of the second rubber blocking strip is the same as the length direction of the frame, the second rubber blocking strip is arranged at the edge of the second auxiliary rubber containing groove, and is located on the side of the second auxiliary rubber containing groove away from the first auxiliary rubber containing groove, and the top of the second rubber blocking strip does not exceed the limiting surface.

[0017] Optionally, one side of the second rubber blocking strip is connected to the support seat, the free side of the second rubber blocking strip is opposite to one side of the second rubber blocking strip, and the side surface of the free side of the second rubber blocking strip is an outwardly convex arc surface.

[0018] Optionally, the top surface of the first rubber blocking strip is flush with the top surface of the limiting strip, and the distance between the top surface of the first rubber blocking strip and the supporting surface does not exceed 4.5 mm.

[0019] Optionally, the support seat includes a support portion and a mounting plate, the support surface is located on the support portion, the outer surface of the support portion also includes a bottom surface arranged opposite to the support surface, the mounting plate is fixedly connected to the support portion, and one side surface of the mounting plate is flush with the bottom surface, and a mounting hole is formed on the mounting plate and passes through the mounting plate along the thickness direction.

[0020] Optionally, the supporting portion includes a top plate, a bottom plate and a pair of side plates, the extension direction of the top plate, the bottom plate and the side plates are the same as the extension direction of the frame, the top plate and the bottom plate are arranged opposite to each other and the supporting surface is formed on the top plate, the bottom surface is formed on the bottom plate, and the two side plates are arranged opposite to each other and are respectively connected between the edges on the same side of the top plate and the bottom plate.

[0021] Optionally, at least one first reinforcing rib is formed on the surface of the top plate facing the bottom plate, and an extension direction of the first reinforcing rib is the same as an extension direction of the frame.

[0022] Optionally, at least one second reinforcing rib is formed on the surface of the bottom plate facing the top plate, and the extension direction of the second reinforcing rib is the same as the extension direction of the frame.

[0023] As a second aspect of the utility model, a photovoltaic module is provided, which includes a laminate and a plurality of frames connected end to end, wherein the frames are arranged around the periphery of the laminate by adhesive, and the frame arranged at at least one edge of the laminate is the frame described above, the edge portion of the first surface of the laminate is bonded and supported on the supporting surface by adhesive, the side surface of the first retaining strip is in contact with the side surface of the laminate, and the top surface of the first retaining strip is lower than the second surface of the laminate, wherein the first surface of the laminate is opposite to the second surface of the laminate.

[0024] Optionally, the adhesive is silica gel.

[0025] Optionally, the limiting strip has a top surface on a side facing away from the supporting surface along a direction perpendicular to the supporting surface, and a distance between the top surface and the supporting surface is less than a thickness of the laminate.

[0026] Optionally, the distance between the upper surface of the laminate and the top surface of the limiting strip is 0.5 mm to 1 mm.

[0027] In the utility model, adhesive is arranged between the support surface and the first surface of the laminate, and the main adhesive groove is filled with adhesive. Because the upper surface of the limit strip is formed with the main adhesive groove, relatively more adhesive can be arranged between the laminate and the frame, so that sufficient buffer can be provided between the laminates and greater adhesive force can be provided, reducing the risk of laminate fragmentation in the photovoltaic module, and reducing the risk of laminate separation from the frame, and finally improving the overall strength and structural stability of the photovoltaic module. In addition, a first stop strip is arranged on the top of the limit strip, and in the photovoltaic module, the side of the first stop strip is against the side of the laminate, so that the adhesive can be limited in the main adhesive groove to avoid the adhesive from overflowing from the main adhesive groove. In addition, the top surface of the first stop strip is lower than the second surface of the laminate, so that at the position corresponding to the laminate and the frame, there is no frame shielding and no overflow of adhesive on the second surface, so that dust accumulation at the edge of the laminate can be better prevented, and the overall power generation efficiency of the photovoltaic module can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the structure of a photovoltaic module in the related art;

[0030] Figure 2 It is a structural schematic diagram of the dust accumulation state of a photovoltaic module in the related art;

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the frame provided by the embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of the structure of the connection between the frame and the laminate provided by the embodiment of the utility model;

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of the frame provided by the embodiment of the utility model;

[0034] Figure 6 It is a schematic diagram of the structure of the connection between the frame and the laminate provided by the embodiment of the utility model;

[0035] Figure 7 It is a structural schematic diagram of a frame provided by an embodiment of the utility model;

[0036] Figure 8 It is a schematic diagram of the structure of a photovoltaic assembly provided by an embodiment of the utility model;

[0037] Fig. 9 It is a schematic diagram of the cross-sectional structure of a photovoltaic module provided by an embodiment of the utility model;

[0038] Fig.10 is a schematic diagram of stress distribution of front glass in a load test of a laminate supported by a frame designed using the relevant technology;

[0039] Fig.11 It is a schematic diagram of stress distribution of the back glass of a laminate supported by a frame designed using the relevant technology during a load test;

[0040] Fig.12 It is a schematic diagram of stress distribution of the front glass of the laminate supported by the frame provided by the embodiment of the utility model in the load test;

[0041] Fig.13 It is a schematic diagram of stress distribution of the back glass of the laminate supported by the frame provided in the embodiment of the utility model during a load test.

[0042] Description of Reference Numerals

[0043] Border 10;

[0044] Support seat 100; support surface 101; first auxiliary adhesive groove 102; second auxiliary adhesive groove 103; bottom surface 104; support portion 110; top plate 111; bottom plate 112; side plate 113; first reinforcing rib 114; second reinforcing rib 115; inner convex portion 120; arc reinforcing surface 121; mounting plate 130;

[0045] Limiting strip 200; limiting surface 201; top surface 202; first stopper strip 220; main adhesive groove 230; groove top 231; groove middle 232; groove bottom 233;

[0046] Laminate 20; adhesive 30; corner code 40. DETAILED DESCRIPTION

[0047] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0048] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present utility model. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0049] In order to solve the above technical problems, as one aspect of the utility model, a frame applied to a photovoltaic module is provided, such as Figures 3 to 6 As shown, the frame 10 includes a support base 100 and a limiting strip 200 disposed outside the support base 100. It should be noted that the support base 100 is also a strip-shaped structure. The length direction of the support base 100 and the limiting strip 200 is consistent with the length direction of the frame. Figures 3 to 6 In the embodiment shown in , the length direction of the frame is perpendicular to the paper surface. The width direction mentioned in the embodiment of the utility model is Figures 3 to 6 The left and right directions in the embodiment of the present invention are as follows: Figures 3 to 6 The up and down directions in .

[0050] like Figure 3 As shown in , the support seat 100 has a support surface 101 for supporting the bottom edge of the laminate 20 of the photovoltaic module, and a first stop rubber strip 220 is arranged on the inner side of the top of the limit strip 200. The length direction of the first stop rubber strip 220 is consistent with the length direction of the limit strip 200, and the limit surface 201 of the limit strip 200 limits the side of the laminate 20. A main glue groove 230 is formed on the upper surface of the limit strip 200, and the height dimension of the main glue groove 230 does not exceed the thickness of the laminate 20.

[0051] In the embodiment of the utility model, the frame of the photovoltaic module includes a plurality of frames, at least one of which is the frame 10 provided in the embodiment of the utility model. Figure 4 As shown, in the photovoltaic module, the limit strip 200 of the frame 10 is arranged on the periphery of the laminate 20, and the frame 10 is bonded to the layer frame 20 by an adhesive. Figure 4 As shown, the support surface is aligned with the first surface (i.e. Figure 4 The main adhesive groove 230 is filled with adhesive. Since the main adhesive groove 230 is formed on the upper surface of the limit strip 200, relatively more adhesive can be arranged between the laminate 20 and the frame 10, thereby providing sufficient buffer between the laminates 20 and providing greater adhesive force, reducing the risk of the laminate 20 breaking in the photovoltaic module, and reducing the risk of the laminate 20 separating from the frame 10, and finally improving the overall strength and structural stability of the photovoltaic module.

[0052] As described above, the first stop strip 220 is disposed on the top of the limit strip 200. In the photovoltaic module, the side of the first stop strip 220 ( Figure 4 The first adhesive strip 220 is against the side of the laminate 20, so that the adhesive can be confined in the main adhesive groove to prevent the adhesive from overflowing from the main adhesive groove 230. In addition, the top surface of the first adhesive strip 220 is lower than the second surface ( Figure 4 Therefore, at the position where the laminate 20 corresponds to the frame 10, there is neither frame obstruction nor glue overflow on the second surface, thereby better preventing dust accumulation at the edge of the laminate 20 and improving the overall power generation efficiency of the photovoltaic module.

[0053] In the embodiment of the utility model, there is no special limitation on how and where the limit strip 200 is arranged on the support seat 100. In order to improve the overall strength, as an optional implementation of the utility model, Figures 3 to 6 As shown, the support seat 100 and the limiting strip 200 are formed as one body.

[0054] In the embodiment of the present invention, the material of the frame 10 is not limited as described above, as long as it has sufficient strength and can bear the laminate 20. As an optional embodiment of the present invention, the frame 10 is made of aluminum.

[0055] As an optional implementation of the present invention, the frame 10 is manufactured by an extrusion process.

[0056] As an optional implementation of the present invention, Figures 3 to 6 As shown, the depth of the main adhesive groove 230 (the depth direction of the main adhesive groove 230 in the present invention is Figure 3 In the direction from right to left in the figure, the main rubber groove 230 increases first and then decreases in the direction toward the support seat 100. That is to say, in the direction from the first rubber stopper strip 220 to the support surface 101, the main rubber groove 230 includes a groove top 231, a groove middle 232 and a groove bottom 233 connected in sequence, wherein the groove top 231 is adjacent to the first rubber stopper strip 220, the groove bottom 233 is adjacent to the support surface, the depth of the groove middle 232 is greater than the depth of the groove bottom 233, and the depth of the groove middle 232 is greater than the depth of the groove top 231.

[0057] As described above, the bottom of the main adhesive groove 230 is adjacent to the support surface 101, that is, the adhesive 30 on the support surface 101 can smoothly flow into the bottom 233 of the main adhesive groove 230. When the laminate 20 and the frame 10 are combined together, the adhesive 30 can flow in the main adhesive groove 230 to be evenly distributed, thereby preventing the adhesive 30 from overflowing to the top of the laminate 20, thereby ensuring the drainage and sewage discharge capacity of the photovoltaic module, and effectively avoiding the problem of dirt deposition such as dust accumulation caused by the difficulty in discharging accumulated water and snow, thereby ensuring the light utilization rate of the photovoltaic module and improving the power generation efficiency of the photovoltaic module.

[0058] In order to ensure that the main adhesive groove 230 contains enough adhesive 30, the adhesive 30 should be able to flow smoothly in the main adhesive groove 230. Therefore, in order to improve the fluidity of the adhesive 30 in the main adhesive groove 230, optionally, the bottom surface of the main adhesive groove 230 is an arc surface.

[0059] When the frame provided by the embodiment of the utility model is used in a photovoltaic module, adhesive 30 is also provided between the support surface and the laminate 20. In order to further improve the buffering of the laminate 20, the adhesive 30 between the support surface and the laminate 20 should also have a relatively large amount.

[0060] In order to facilitate processing, the corners of the laminate 20 are usually right angles, and stress concentration is easily generated at right angles, so it is also easier to break under the action of external forces. Therefore, in the embodiment of the utility model, more adhesives can be set at the positions corresponding to the corners of the laminate 20 on the frame 10. In order to achieve this purpose, the upper surface layer of the support seat 100 is formed with a first auxiliary adhesive groove 102, the length direction of the first auxiliary adhesive groove 102 is consistent with the length direction of the frame 10, and the first auxiliary adhesive groove 102 is located at the intersection of the support surface 101 of the limit strip 200, so that the first auxiliary adhesive groove 102 is connected to the main adhesive groove 230.

[0061] The first auxiliary adhesive groove 102 can contain relatively more adhesive, so as to cushion the corners of the laminate 20 and prevent the corners of the laminate 20 from breaking. In addition, the first auxiliary adhesive groove 102 is connected to the main adhesive groove 230, which can ensure that the adhesive has good fluidity.

[0062] Furthermore, a second auxiliary adhesive groove 103 may be formed on the upper surface of the support seat 100, and the second auxiliary adhesive groove 103 is spaced apart from the first auxiliary adhesive groove 102 and is further away from the limit strip 200 than the first auxiliary adhesive groove 102. By providing the second auxiliary adhesive groove 103, more adhesive can be formed between the support seat and the laminate 20, thereby increasing the bonding strength between the laminate 20 and the frame 10 and increasing the buffering of the laminate 20.

[0063] As described above, the frame 10 can be formed by extrusion molding. Therefore, in the process of extruding the frame, the second auxiliary glue-containing groove 102 will undergo local work hardening, thereby increasing the overall strength of the support base 100.

[0064] In an embodiment of the utility model, a first auxiliary glue containing groove 102 and a second auxiliary glue containing groove 103 are also formed on the upper surface of the support seat 100. The position of the first auxiliary glue containing groove 102 corresponds to the bottom edge position of the laminate 20, and the position of the second auxiliary glue containing groove 103 corresponds to the edge position of the support surface 101, thereby increasing the thickness of the adhesive 30 at the two positions where the stress is the largest when the laminate 20 is deformed, and then providing a larger buffer space for the stress concentration point when the laminate 20 is deformed by the impact of rain and snow, thereby avoiding damage to the laminate 20 due to impact and deformation, further ensuring the structural stability of the photovoltaic module, and extending the service life of the photovoltaic module.

[0065] In the embodiment of the utility model, the specific position of the second auxiliary adhesive holding groove 103 is not particularly limited, as long as it is formed on the support surface and can hold adhesive. As an optional implementation, the second auxiliary adhesive holding groove 103 is formed at the outer edge of the support surface 101, and the outer edge of the support surface 101 is parallel to the intersection of the limit strip 200 and the support surface 101.

[0066] Accordingly, in order to prevent glue overflow, such as Figure 5 As shown, the support seat 100 also includes a second blocking rubber strip 120, the length direction of the second blocking rubber strip 120 is the same as the length direction of the frame 10, the second blocking rubber strip 120 is arranged at the edge of the second auxiliary glue containing groove 103, and is located on the side of the second auxiliary glue containing groove 103 away from the first auxiliary glue containing groove 102, and the top of the second blocking rubber strip 120 does not exceed the limiting surface 101.

[0067] By providing the second rubber stop strip 120, it is possible to avoid Figure 4 In some embodiments, the photovoltaic module is a double-sided light-emitting module, that is, the first surface and the second surface of the laminate are both light receiving surfaces. After installation, the first surface can generate electricity using diffusely reflected light from objects around the laminate. When the frame provided by the embodiment of the utility model is used in the photovoltaic module, there will be no overflow of glue on the first surface of the laminate 20, thereby improving the power generation efficiency of the photovoltaic module.

[0068] It is easy to understand that one side of the second rubber stopper strip 120 is connected to the support seat 100 , and the other side is a free side. After assembly, the free side abuts against the first surface of the laminate 20 .

[0069] As an optional embodiment, the side surface of the free side of the second rubber strip 120 is a convex arc surface 121 (that is, the side surface of the free side of the second rubber strip 120 is formed as a rounded corner), thereby preventing the laminate 20 from breaking on the free side of the second rubber strip 120.

[0070] As described above, the first rubber stopper strip 220 is mainly used to prevent glue overflow, and after installation, the top surface of the first rubber stopper strip 220 should be lower than the second surface of the laminate 20. The height of the top surface of the first rubber stopper strip 220 is determined by the height of the limiting strip 200 and the thickness of the first rubber stopper strip 220, and the height of the limiting strip 200 is related to the limiting effect of the limiting strip 200 on the laminate 20.

[0071] For ease of processing, the top surface of the first blocking rubber strip 220 is flush with the top surface of the limiting strip 200 .

[0072] As an optional implementation of the present invention, Figure 6 As shown, the distance b of the second surface of the laminate 20 above the top surface 202 of the limiting strip 200 (ie, the top surface of the first blocking rubber strip 220 ) is greater than 0.5 mm.

[0073] For example, when the thickness of the laminate 20 is 4 mm to 5 mm, as an optional embodiment of the present invention, Figure 6 As shown, the height difference a between the top surface 202 (that is, the top surface of the first rubber stop strip 220 ) and the support surface 101 is less than 4.5 mm.

[0074] As an optional implementation of the present invention, Figure 6 As shown, the distance b of the top of the laminate 20 above the top surface 202 of the limiting strip 200 is 0.5 mm to 1 mm.

[0075] Correspondingly, when the thickness of the laminate 20 is 4 mm to 5 mm, as an optional embodiment of the present invention, Figure 6 As shown, the height difference a between the top surface 202 and the support surface 101 may be 3 mm to 4.5 mm.

[0076] like Fig.10 , Fig.11 FIG. 1 is a schematic diagram showing the stress distribution of the front glass and the back glass of a laminate supported by a frame designed with related technology under a load of 5400Pa. Fig.12 , Fig.13The figure shows the stress distribution of the front glass and the back glass of the laminated member supported by the frame provided by the utility model under the same load. It can be seen from the figure that the frame structure provided by the utility model can reduce the stress of the back glass of the laminated member by about 10MPa and the stress of the back glass by about 11% compared with the related art, which significantly reduces the stress on the laminated member.

[0077] As an optional implementation of the present invention, Figure 5 , Figure 6 As shown, the support seat 100 includes a support portion 110 and a mounting plate 130, the support surface 101 is located on the support portion 110, the outer surface of the support portion 110 also includes a bottom surface 104 arranged opposite to the support surface 101, the mounting plate 130 is fixedly connected to the support portion 110, and one side surface of the mounting plate 130 is flush with the bottom surface 104, and a mounting hole is formed on the mounting plate 130 and penetrates the mounting plate 130 along the thickness direction. The mounting plate 130 is used to be connected to a site fixed structure such as a rack and the ground through a fastener passing through the mounting hole.

[0078] As an optional implementation of the present invention, Figure 3 , Figure 5 As shown, the support portion 110 includes a top plate 111, a bottom plate 112 and a pair of side plates 113. The extension directions of the top plate 111, the bottom plate 112 and the side plates 113 are the same as the extension direction of the frame 10. The top plate 111 and the bottom plate 112 are arranged opposite to each other and the support surface 101 is formed on the top plate 111, and the bottom surface 104 is formed on the bottom plate 112. The two side plates 113 are arranged opposite to each other and are respectively connected between the edges on the same side of the top plate 111 and the bottom plate 112.

[0079] In order to improve the structural strength of the frame 10, as a preferred embodiment of the present invention, Figures 3 to 6 As shown, at least one first reinforcing rib 114 is formed on the surface of the top plate 111 facing the bottom plate 112 , and the extension direction of the first reinforcing rib 114 is the same as the extension direction of the frame 10 .

[0080] In order to improve the structural strength of the frame 10, as a preferred embodiment of the present invention, Figures 3 to 6 As shown, at least one second reinforcing rib 115 is formed on the surface of the bottom plate 112 facing the top plate 111 , and the extension direction of the second reinforcing rib 115 is the same as the extension direction of the frame 10 .

[0081] As a second aspect of the present invention, a photovoltaic module is provided, such as Figure 7As shown, the photovoltaic module includes a laminate 20 and a plurality of frames 10 connected end to end, the frames are arranged around the periphery of the laminate 20 by adhesive, and the frame 10 arranged at at least one edge of the laminate is the frame provided by the first aspect of the utility model, the edge portion of the first surface of the laminate 20 is bonded and supported on the supporting surface 101 by adhesive, the side surface of the first retaining strip is in contact with the side surface of the laminate, and the top surface of the first retaining strip 220 is lower than the second surface of the laminate 20, wherein the first surface of the laminate 20 is opposite to the second surface of the laminate.

[0082] In the embodiment of the present invention, the support surface and the first surface (ie Figure 4 The main adhesive groove 230 is filled with adhesive. Since the main adhesive groove 230 is formed on the upper surface of the limit strip 200, relatively more adhesive can be arranged between the laminate 20 and the frame 10, thereby providing sufficient buffer between the laminates 20 and providing greater adhesive force, reducing the risk of the laminate 20 breaking in the photovoltaic module, and reducing the risk of the laminate 20 separating from the frame 10, and finally improving the overall strength and structural stability of the photovoltaic module.

[0083] In addition, a first stop strip 220 is disposed on the top of the limit strip 200. In the photovoltaic module, the side of the first stop strip 220 ( Figure 4 The first adhesive strip 220 is against the side of the laminate 20, so that the adhesive can be confined in the main adhesive groove to prevent the adhesive from overflowing from the main adhesive groove 230. In addition, the top surface of the first adhesive strip 220 is lower than the second surface ( Figure 4 Therefore, at the position where the laminate 20 corresponds to the frame 10, there is neither frame obstruction nor glue overflow on the second surface, thereby better preventing dust accumulation at the edge of the laminate 20 and improving the overall power generation efficiency of the photovoltaic module.

[0084] As an optional implementation of the present invention, Figure 7 As shown, the frame also includes a plurality of corner codes 40 , and adjacent frames 10 are fixedly connected via the corner codes 40 .

[0085] As an optional implementation of the present invention, the adhesive 30 is silica gel.

[0086] As an optional implementation of the present invention, Figure 6 As shown, the distance b where the top of the pressing piece 20 is higher than the top surface 202 of the limiting strip 200 is 0.5 mm to 1 mm.

[0087] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A frame applied to a photovoltaic module, the frame comprising a support seat and a limit strip arranged on the outer side thereof, the length directions of the support seat and the limit strip are consistent with the length direction of the frame, the support seat has a support surface for supporting the bottom edge of the laminate of the photovoltaic module, characterized in that: A first stop rubber strip is arranged on the inner side of the top of the limit strip, the length direction of the first stop rubber strip is consistent with the length direction of the limit strip, the limit surface of the limit strip is limited to the side of the laminate, the upper surface of the limit strip is formed with a main glue groove, and the height dimension of the limit strip does not exceed the thickness of the laminate.

2. The frame according to claim 1, characterized in that: In the direction from the first rubber stop strip to the supporting surface, the main rubber containing groove includes a groove top, a groove middle and a groove bottom connected in sequence, wherein the groove top is adjacent to the first rubber stop strip, the groove bottom is adjacent to the supporting surface, the depth of the groove middle is greater than the depth of the groove bottom, and the depth of the groove middle is greater than the depth of the groove top.

3. The frame according to claim 2, characterized in that: The bottom surface of the main glue containing groove is an arc-shaped surface.

4. The frame according to any one of claims 1 to 3, characterized in that: A first auxiliary glue holding groove is formed on the upper surface of the support seat, the length direction of the first auxiliary glue holding groove is consistent with the length direction of the frame, and the first auxiliary glue holding groove is located at the intersection of the limit strip and the support surface, so that the first auxiliary glue holding groove is connected to the main glue holding groove.

5. The frame according to claim 4, characterized in that: A second auxiliary glue containing groove is also formed on the upper surface of the support seat. The second auxiliary glue containing groove is spaced apart from the first auxiliary glue containing groove and is further away from the limiting strip than the first auxiliary glue containing groove.

6. The frame according to claim 5, characterized in that: The second auxiliary adhesive holding groove is formed at the outer edge of the support surface, and the outer edge of the support surface is parallel to the intersection of the limit strip and the support surface. The support seat also includes a second rubber blocking strip, the length direction of the second rubber blocking strip is the same as the length direction of the frame, the second rubber blocking strip is arranged at the edge of the second auxiliary rubber containing groove, and is located on the side of the second auxiliary rubber containing groove away from the first auxiliary rubber containing groove, and the top of the second rubber blocking strip does not exceed the limiting surface.

7. The frame according to claim 6, characterized in that: One side of the second rubber blocking strip is connected to the support seat, the free side of the second rubber blocking strip is opposite to one side of the second rubber blocking strip, and the side surface of the free side of the second rubber blocking strip is an outwardly convex arc surface.

8. The frame according to any one of claims 1 to 3, characterized in that: The top surface of the first rubber stop strip is flush with the top surface of the limiting strip, and the distance between the top surface of the first rubber stop strip and the supporting surface does not exceed 4.5 mm.

9. The frame according to any one of claims 1 to 3, characterized in that: The support seat includes a support portion and a mounting plate, the support surface is located on the support portion, the outer surface of the support portion also includes a bottom surface arranged opposite to the support surface, the mounting plate is fixedly connected to the support portion, and one side surface of the mounting plate is flush with the bottom surface, and a mounting hole is formed on the mounting plate and passes through the mounting plate along the thickness direction.

10. A photovoltaic module, comprising a laminate and a plurality of frames connected end to end, wherein the frames are arranged around the periphery of the laminate by adhesive, characterized in that: The frame arranged at at least one edge of the laminate is the frame described in any one of claims 1 to 9, the edge portion of the first surface of the laminate is bonded and supported on the supporting surface by an adhesive, the side surface of the first adhesive strip is in contact with the side surface of the laminate, and the top surface of the first adhesive strip is lower than the second surface of the laminate, wherein the first surface of the laminate is opposite to the second surface of the laminate.

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