Photovoltaic module frame

Abstract

The utility model discloses a photovoltaic module frame, which comprises a frame body formed by mutually connecting a long frame and a short frame, the long frame is provided with a long accommodating groove used for accommodating the long edge of a photovoltaic module, the length of the long accommodating groove is equal to that of the long frame, the short frame is provided with at least two short accommodating grooves at equal intervals, and the short accommodating grooves are communicated with the long accommodating groove. The total length of all the short containing grooves is smaller than the length of the short frame, and the short containing grooves are used for containing the short edges of the photovoltaic module so that the photovoltaic module can be installed on the frame body. The photovoltaic module frame has the characteristics of compact structure, high supporting stability, good water accumulation and dust accumulation prevention effect and the like, the plurality of accommodating grooves are formed in the short frame at equal intervals, namely, the short frame of the frame body is locally designed without A surfaces, so that water accumulation and dust accumulation on the front surface of the photovoltaic module are prevented, and the service life of the photovoltaic module is prolonged. And the load resistance of the front side and the wind uplift resistance of the back side of the photovoltaic module are both considered.

Description

Technical Field

[0001] The utility model relates to the technical field of BIPV photovoltaic components, in particular to a photovoltaic component frame. Background Art

[0002] Due to the presence of the bottom frame A side of the conventional photovoltaic module frame, water is prone to accumulation near the lower part of the module when it rains. The accumulated water will also cause dust to gather on the surface of the module. After the accumulated water on the surface of the module evaporates, dust accumulation areas will appear, blocking the surface of the module, reducing the efficiency of the module, and also causing the risk of local hot spots, seriously affecting the conversion efficiency and service life of the module.

[0003] Conventional module frames are prone to causing water and dust accumulation on the modules, which in turn has an adverse effect on photovoltaic modules. Existing solutions, such as the design without A-side on the short side, will reduce the connection strength between the frame and the module glass, thereby weakening the load-bearing and wind-resistant ability of the back of the module, and challenging the reliability of the module. Although the method of grooving the bottom of the short frame can improve the water accumulation on the surface of the module, the problem of local water accumulation will still occur, and the problem of water and dust accumulation on the module cannot be completely solved. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a photovoltaic module frame with a compact structure, convenient installation and strong supporting capacity in response to the above-mentioned problems in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A photovoltaic module frame includes a frame body formed by interconnecting a long frame and a short frame, wherein the long frame is provided with a long receiving groove for accommodating the long side of the photovoltaic module, and the length of the long receiving groove is equal to the length of the long frame; at least two short receiving grooves are provided at equal intervals on the short frame, and the total length of all the short receiving grooves is less than the length of the short frame; the short receiving grooves are used to accommodate the short side of the photovoltaic module to enable the photovoltaic module to be installed on the frame body.

[0007] As a further improvement of the present invention, the short receiving groove is formed by a short top plate, a bottom plate and a side plate; at least two short top plates are arranged at equal intervals on the short frame, and the length of the bottom plate and the length of the side plate are equal to the length of the short frame.

[0008] As a further improvement of the present invention, the bottom plate is provided with a lower supporting surface that contacts the photovoltaic component, the end of the lower supporting surface is provided with a third limiting portion, and the bottom plate is provided with an overflow glue groove, which is located below the third limiting portion and extends in a direction away from the side panel.

[0009] As a further improvement of the present invention, the short top plate is provided with a first limiting portion, an overflow glue groove and an upper supporting surface. The upper supporting surface is close to the side plate, and the upper supporting surface is in contact with the photovoltaic component. The end of the upper supporting surface is provided with a second limiting portion. The first limiting portion is located at the end of the short top plate, and an overflow glue groove is formed between the first limiting portion and the second limiting portion.

[0010] As a further improvement of the present invention, the cross-section of the short top plate is trapezoidal.

[0011] As a further improvement of the present invention, the cross section of the short top plate is fan-shaped.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The photovoltaic module frame of the present invention is formed by interconnecting a long frame and a short frame to form a frame body, and a long accommodating groove for accommodating the long side of the photovoltaic module is provided on the long frame, and at least two short accommodating grooves are provided at equal intervals on the short frame. The short accommodating grooves are used to accommodate the short sides of the photovoltaic module, so that the photovoltaic module is installed on the frame body, which has the characteristics of compact structure, high support stability, and good effect of preventing water accumulation and dust accumulation. In the utility model, a plurality of accommodating grooves are provided at equal intervals on the short frame, that is, the short frame of the frame body is partially designed to have no A side. Under the premise of preventing water accumulation and dust accumulation on the front of the photovoltaic module, the load resistance of the front and the wind resistance of the back of the photovoltaic module are taken into account, which is beneficial to improving the conversion efficiency and service life of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure principle of the photovoltaic module frame in the specific embodiment 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the partial structural principle of the short frame in the specific embodiment 1 of the present utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure principle of the short frame in the specific embodiment 1 of the present utility model;

[0017] Figure 4 This is a diagram showing the stress analysis results of the photovoltaic module frame in the first embodiment of the present invention;

[0018] Figure 5 This is a diagram showing the deformation analysis results of the photovoltaic module frame in the first embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of the main structural principle of the photovoltaic module frame in specific embodiment 2 of the present utility model;

[0020] Figure 7This is a diagram showing the stress analysis results of the photovoltaic module frame in specific embodiment 2 of the present utility model;

[0021] Figure 8 This is a diagram showing the deformation analysis results of the photovoltaic module frame in the second specific embodiment of the present invention;

[0022] Legend: 100, long frame; 101, long receiving groove; 200, short frame; 201, short top plate; 2011, first limiting part; 2012, second limiting part; 2013, overflow glue groove; 2014, upper supporting surface; 202, bottom plate; 2021, third limiting part; 2022, lower supporting surface; 2023, overflow glue groove; 203, side plate; 204, short receiving groove; 300, photovoltaic module. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but the scope of protection of the present invention is not limited thereby.

[0024] In the description of the present invention, it should be understood that the terms "side", "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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] Example 1

[0027] like Figure 1As shown, the photovoltaic module frame of the present invention includes a frame body formed by interconnecting a long frame 100 and a short frame 200. The long frame 100 is provided with a long receiving groove 101 for accommodating the long side of the photovoltaic module 300. The length of the long receiving groove 101 is equal to the length of the long frame 100. The short frame 200 is provided with at least two short receiving grooves 204 at equal intervals. The total length of all the short receiving grooves 204 is less than the length of the short frame 200. The short receiving grooves 204 are used to accommodate the short side of the photovoltaic module 300, so that the photovoltaic module 300 can be installed on the frame body. Figure 1 As shown, the long sides of the photovoltaic assembly 300 are completely covered by the long frame 100 , and the short sides of the photovoltaic assembly 300 are only partially covered by the short frame 200 .

[0028] In this embodiment, a frame body is formed by interconnecting a long frame and a short frame. A long receiving slot for accommodating the long sides of a photovoltaic module is provided on the long frame, and at least two short receiving slots are provided at equal intervals on the short frame. The short receiving slots are used to accommodate the short sides of the photovoltaic module, thereby achieving the installation of the photovoltaic module on the frame body. This has the characteristics of a compact structure, high support stability, and good resistance to water and dust accumulation. In this embodiment, by providing multiple receiving slots at equal intervals on the short frame, that is, by partially designing the short frame of the frame body without an A-side, this ensures that the load resistance of the front of the photovoltaic module and the wind resistance of the back of the photovoltaic module are both taken into account, while ensuring that the front of the photovoltaic module is protected from water and dust accumulation. This is beneficial to improving the conversion efficiency and service life of the photovoltaic module.

[0029] like Figure 2 and Figure 3 As shown, the short receiving groove 204 is formed by a short top plate 201, a bottom plate 202 and a side plate 203. It can be seen that the short top plate 201 is the A side of the frame. The two short top plates 201 are equidistantly arranged on the short frame 200, and the length of the bottom plate 202 and the length of the side plate 203 are both equal to the length of the short frame 200. It can be understood that the long receiving groove 101 and the short receiving groove 204 have similar structural settings, except that the length of the top plate of the long receiving groove 101 is equal to the length of the long frame 100, so as to achieve complete wrapping of the long side of the photovoltaic module 300. In actual application, a plurality of short receiving grooves 204 can be equidistantly arranged on the short frame 200 according to the installation requirements of the photovoltaic module 300.

[0030] like Figure 3As shown, the bottom plate 202 is provided with a lower abutting surface 2022 that contacts the photovoltaic module 300. A third stopper 2021 is provided at the end of the lower abutting surface 2022. The bottom plate 202 is also provided with a glue overflow groove 2023, which is located below the third stopper 2021 and extends away from the side plate 203. By providing the glue overflow groove at the point where the frame body contacts the lower surface glass of the photovoltaic module 300, it can effectively reduce silicone overflow during framing, while also increasing the adhesive surface area between the bottom glass of the photovoltaic module 300 and the frame, making the two more firmly bonded.

[0031] like Figure 3 As shown, the short top plate 201 is provided with a first limiting portion 2011, an overflow glue groove 2013 and an upper supporting surface 2014. The upper supporting surface 2014 is close to the side plate 203, and the upper supporting surface 2014 is in contact with the photovoltaic component 300. The second limiting portion 2012 is located at the end of the upper supporting surface 2014. The first limiting portion 2011 is located at the end of the short top plate 201, and an overflow glue groove 2013 is formed between the first limiting portion 2011 and the second limiting portion 2012.

[0032] When the photovoltaic component 300 is stuck in the short receiving groove 204, the photovoltaic component 300 is tightly connected to the short top plate 201 through the glue in the overflow glue groove 2013, the photovoltaic component 12 is tightly connected to the bottom plate 202 through the glue in the overflow glue groove 2023, and the photovoltaic component 300 is tightly connected to the side plate 203 through the glue in the short receiving groove 204. The structure has good stability, and the overflow glue at the edge of the photovoltaic component 300 is easy to remove after lamination.

[0033] like Figure 1 and Figure 2 As shown, the short top plate 201 has a trapezoidal cross-section, which prevents water and dust from accumulating near surface A while ensuring the frame's load requirements with a minimal surface A area. The specific dimensions of the trapezoid can be flexibly set based on actual needs, as long as the photovoltaic module 300 can be securely installed.

[0034] In this embodiment, the mechanical load problem of the short frame after removing the A surface is analyzed by ANSYS finite element analysis. The analysis results are as follows: Figure 4 and Figure 5As shown. The thickness of the component glass is set to 2+2mm, the length is 1722mm, and the width is 1134mm. A pressure of 2400Pa is applied to the back of the component in the wind-lifting mode. The A surfaces of the long frame 100 and the short frame 200 are both supporting surfaces. When the short frame 200 with a trapezoidal local A surface is used, the maximum stress is 81.57MPa, which is located near the obtuse angle position of the trapezoidal A surface. The maximum deformation position is located at the center of the photovoltaic component 300, which is 21.37mm. The position deformation of the short frame 200 can be ignored, and there is basically no risk of debonding at the place where there is no A surface on the short frame 200. All of the above parameters are within the safe range, and the photovoltaic component frame of this embodiment can meet the conventional load requirements.

[0035] Example 2

[0036] like Figure 6 As shown, the photovoltaic module frame of the present invention has a similar structural setting and working principle to the photovoltaic module frame in Example 1. The main difference is that the cross-section of the short top plate 201 is fan-shaped, and the specific size of the fan can be flexibly set according to actual needs, as long as the photovoltaic module 300 can be stably installed.

[0037] In this embodiment, the mechanical load problem of the short frame after removing the A surface is analyzed by ANSYS finite element analysis. The analysis results are as follows: Figure 7 and Figure 8 As shown. The glass thickness of the photovoltaic module 300 is set to 2+2mm, the length is 1722mm, and the width is 1134mm. A pressure of 2400Pa is applied to the back of the module in the wind-lifting mode. The A surfaces of the long frame 100 and the short frame 200 are both supporting surfaces. When the short frame 200 with a fan-shaped local A surface is used, the maximum stress is 77.25MPa, which is located near the arc of the fan-shaped A surface. The maximum deformation position is located at the center of the photovoltaic module 300, which is 21.30mm. The position deformation of the short frame 200 can be ignored, and there is basically no risk of debonding at the place where there is no A surface on the short frame 200. All of the above parameters are within the safe range, and the photovoltaic module frame of this embodiment can meet the conventional load requirements.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A photovoltaic module frame, characterized in that: The invention comprises a frame body formed by interconnecting a long frame (100) and a short frame (200); the long frame (100) is provided with a long receiving groove (101) for receiving the long side of a photovoltaic module (300); the length of the long receiving groove (101) is equal to the length of the long frame (100); the short frame (200) is provided with at least two short receiving grooves (204) at equal intervals; the total length of all the short receiving grooves (204) is less than the length of the short frame (200); the short receiving grooves (204) are used to receive the short side of the photovoltaic module (300), so that the photovoltaic module (300) can be mounted on the frame body.

2. The photovoltaic module frame according to claim 1, characterized in that: The short receiving groove (204) is formed by a short top plate (201), a bottom plate (202) and a side plate (203); at least two short top plates (201) are arranged on the short frame (200) at equal intervals, and the length of the bottom plate (202) and the length of the side plate (203) are both equal to the length of the short frame (200).

3. The photovoltaic module frame according to claim 2, characterized in that: The bottom plate (202) is provided with a lower supporting surface (2022) in contact with the photovoltaic assembly (300), a third limiting portion (2021) is provided at the end of the lower supporting surface (2022), and an overflow glue groove (2023) is provided on the bottom plate (202), the overflow glue groove (2023) is located below the third limiting portion (2021) and extends in a direction away from the side plate (203).

4. The photovoltaic module frame according to claim 3, characterized in that: The short top plate (201) is provided with a first limiting portion (2011), an overflowing glue groove (2013) and an upper supporting surface (2014); the upper supporting surface (2014) is close to the side plate (203); the upper supporting surface (2014) is in contact with the photovoltaic assembly (300); a second limiting portion (2012) is provided at the end of the upper supporting surface (2014); the first limiting portion (2011) is located at the end of the short top plate (201); and an overflowing glue groove (2013) is formed between the first limiting portion (2011) and the second limiting portion (2012).

5. The photovoltaic module frame according to any one of claims 2 to 4, characterized in that: The cross section of the short top plate (201) is trapezoidal.

6. The photovoltaic module frame according to any one of claims 2 to 4, characterized in that: The cross section of the short top plate (201) is fan-shaped.

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