Sectional material for photovoltaic module frame and photovoltaic module frame

Abstract

The invention discloses a section bar for a photovoltaic module frame and the photovoltaic module frame, and relates to the technical field of solar photovoltaic modules, the section bar comprises a section bar body, the section bar body comprises a supporting assembly, the side surface of the supporting assembly is fixedly connected with a connecting plate, the side surface of the connecting plate is fixedly connected with a limiting assembly and a mounting assembly, and the limiting assembly is fixedly connected with the mounting assembly. The mounting assembly is located below the limiting assembly. In the using process, the telescopic compensation frame is arranged between the first fixing plate and the limiting plate and is designed to be S-shaped, and when the overall profile body generates thermal expansion deformation to loosen limiting of the solar cell, the S-shaped telescopic compensation frame can generate thermal expansion deformation towards the two sides at the moment, so that the solar cell is prevented from being damaged. The limiting plate is pushed through thermal expansion deformation generated by the telescopic compensation frame, so that it is ensured that the limiting plate and the second fixing plate have enough clamping force on the solar cell to limit and fix the solar cell, and the reliability, stability and power generation efficiency of the whole photovoltaic module are improved.

Description

Technical Field

[0001] The invention relates to the technical field of solar photovoltaic components, in particular to a profile used for a photovoltaic component frame and a photovoltaic component frame. Background Art

[0002] The frame of a photovoltaic module is a frame structure surrounding the photovoltaic module. It is an important component of the photovoltaic module. It is similar to a protective frame and a connecting carrier, integrating the various parts of the photovoltaic module to form a complete and stable unit. The frame of a photovoltaic module is usually made of aluminum alloy profiles, stainless steel profiles or plastic steel profiles.

[0003] For example, publication number: CN217508682U discloses “a profile for a photovoltaic module frame and a photovoltaic module frame”, the profile has a notch and a cavity, and a first anti-slip structure is provided on the upper surface and / or the lower surface of the profile.

[0004] However, in the prior art, compared with stainless steel profiles and plastic steel profiles, aluminum alloy profiles have the advantages of light weight, high strength, good corrosion resistance and easy processing. In most ground photovoltaic power stations and rooftop distributed photovoltaic systems, photovoltaic modules with aluminum alloy frames are preferred. However, in the prior art, due to the relatively large thermal expansion coefficient of aluminum alloy profiles, the frame may undergo obvious thermal expansion and contraction at different ambient temperatures. In a high temperature environment, the aluminum alloy frame will expand, which may cause stress inside the module, affecting the normal operation of the battery cell and even causing hidden cracks or damage to the battery cell. In a low temperature environment, the frame shrinks, which may loosen the connection between the module frame and the battery panel, affecting the sealing and overall stability of the module. Summary of the invention

[0005] The object of the present invention is to provide a profile for a photovoltaic module frame and a photovoltaic module frame, so as to solve the problem raised in the above background technology that due to the relatively large thermal expansion coefficient of the aluminum alloy profile, the frame may undergo obvious thermal expansion and contraction under different ambient temperatures. In a high temperature environment, the aluminum alloy frame will expand, which may cause stress inside the module, affecting the normal operation of the battery cell and even causing hidden cracks or damage to the battery cell. In a low temperature environment, the frame shrinks, which may loosen the connection between the module frame and the battery panel, affecting the sealing and overall stability of the module.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a profile for a photovoltaic module frame, comprising a profile body, the profile body comprising a support assembly, a connecting plate fixedly connected to the side of the support assembly, a limiting assembly and an installation assembly fixedly connected to the side of the connecting plate, respectively, the installation assembly is located below the limiting assembly, the limiting assembly comprises a first fixed plate, a telescopic compensation frame fixedly connected to the bottom of the first fixed plate, the bottom of the telescopic compensation frame fixedly connected to the limiting plate, and the end face of the telescopic compensation frame is S-shaped.

[0007] In the present invention, a telescopic compensation frame is provided between the first fixed plate and the limiting plate, and the telescopic compensation frame is designed to be S-shaped. When the profile body as a whole undergoes thermal expansion deformation, the limiting of the solar cell becomes loose. At this time, the S-shaped telescopic compensation frame will produce thermal expansion deformation to both sides. The limiting plate is pushed by the thermal expansion deformation produced by the telescopic compensation frame, thereby ensuring that the limiting plate and the second fixed plate have sufficient clamping force to limit and fix the solar cell.

[0008] Preferably, the support assembly includes a first support frame, and two second support frames are fixedly connected to the surface of the first support frame, and the two second support frames are symmetrically distributed on the upper and lower sides of the first support frame. The two second support frames are fixed on both sides of the first support frame, thereby improving the strength of the first support frame to resist deformation when subjected to external impact during use, thereby improving the overall stability.

[0009] Preferably, a connecting cavity is fixedly provided between the first supporting frame and the second supporting frame.

[0010] Preferably, a first anti-slip layer is provided at the bottom of the limiting plate.

[0011] Preferably, the mounting assembly comprises a mounting plate, a surface of the mounting plate is provided with a mounting groove, and a surface of the mounting plate is provided with a threaded hole.

[0012] A photovoltaic component frame comprises four profile bodies, wherein the four profile bodies are fixedly connected by fixing blocks, connecting frames and first fixing bolts respectively.

[0013] Preferably, the fixed block is located inside the connecting cavity and fixedly connected to the supporting assembly, and the side of the fixed block is threadedly connected to the first fixing bolt. The fixing block can be stably limited and fixed through the connecting cavity, and the two sides of the fixing block can be stably fixed, thereby improving the stability of the photovoltaic assembly frame.

[0014] Preferably, the first fixing bolt is plugged into the connecting frame, and the end of the first fixing bolt passes through the surface of the connecting frame and is threadedly connected to the fixing block. A reinforcement rod is fixedly connected to the inside of the connecting frame. By connecting the reinforcement rod inside, the strength of the connecting frame is improved, making the assembled photovoltaic module frame more stable.

[0015] Preferably, the photovoltaic component frame includes a fixing component, the fixing component includes a plug plate and a second fixing bolt, the plug plate is plugged into the mounting groove, and the upper portion of the plug plate is fixedly connected to a telescopic rod, the upper portion of the telescopic rod is fixedly connected to a second fixing plate, the upper portion of the second fixing plate is fixedly connected to a second anti-slip layer, the second fixing bolt is located inside the threaded hole and is threadedly connected to the mounting plate, and the second fixing plate is pushed by rotating the second fixing bolt to temporarily clamp and fix the solar cell, thereby avoiding displacement of the position of the solar cell during the installation process.

[0016] Preferably, a spring is provided on the surface of the telescopic rod, one end of the spring is fixedly connected to the plug plate, and the other end of the spring is fixedly connected to the second fixing plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a telescopic compensation frame is provided between the first fixed plate and the limit plate, and the telescopic compensation frame is designed to be S-shaped. When the profile body as a whole generates thermal expansion deformation, the limit of the solar cell becomes loose. At this time, the S-shaped telescopic compensation frame generates thermal expansion deformation to both sides. The limit plate is pushed by the thermal expansion deformation generated by the telescopic compensation frame, thereby ensuring that the limit plate and the second fixed plate have sufficient clamping force to limit and fix the solar cell. By stably fixing the solar cell and reducing the influence of thermal expansion deformation, it can be ensured that the solar cell always maintains the correct position and posture under various complex environmental conditions, ensures good connection and circuit smoothness between the cells, so that the photovoltaic power generation system can continuously and stably output electrical energy. At the same time, reducing the influence of thermal expansion deformation can avoid problems such as extrusion, pulling or dislocation caused by changes in the size of the frame and the cell caused by temperature changes, reduce the risk of hidden cracks and damage to the cell, and increase the service life of the cell, thereby improving the reliability, stability and power generation efficiency of the entire photovoltaic module.

[0018] 2. In the present invention, when installing the solar cell, the plug plate is first plugged into the mounting groove, and then the second fixing bolt is threadedly connected to the mounting plate, and the two sides of the solar cell are respectively placed on the upper part of the second fixing plate inside the two profile bodies, and the second fixing bolt is rotated to push the second fixing plate to temporarily clamp and fix the solar cell, so as to avoid the position of the solar cell from being offset during the installation process. When installing, the position of the solar cell is avoided, which can ensure the accurate connection between the cells and the smooth circuit, prevent the obstruction and local current overload caused by position deviation, ensure the stable and efficient operation of the photovoltaic power generation system, extend the service life of the cells and components, and reduce the maintenance cost.

[0019] 3. In the present invention, the height of the second fixing plate pushed by the second fixing bolt is adjusted according to the different ranges of temperature changes in the use area, thereby adjusting the clamping force of the solar cell to avoid excessive clamping force, which may cause excessive squeezing of the solar cell by the profile body when it shrinks and deforms, resulting in damage to the solar cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a profile used for a photovoltaic module frame of the present invention; Figure 2 It is a front view structural schematic diagram of a profile used for a photovoltaic module frame of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of a photovoltaic module frame in a profile used for a photovoltaic module frame of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of a fixing component in a profile used for a photovoltaic component frame of the present invention; Figure 5 The present invention is a front view structural schematic diagram of a fixing block in a profile used in a photovoltaic module frame.

[0021] In the figure: 10, profile body; 1, support assembly; 11, first support frame; 12, second support frame; 2, connecting plate; 3, limit assembly; 31, first fixed plate; 32, telescopic compensation frame; 33, limit plate; 34, first anti-slip layer; 4, installation assembly; 41, mounting plate; 42, mounting groove; 43, threaded hole; 5, connecting cavity; 6, fixing block; 7, connecting frame; 71, reinforcement rod; 8, first fixing bolt; 9, fixing assembly; 91, plug plate; 92, telescopic rod; 93, spring; 94, second fixed plate; 95, second anti-slip layer; 96, second fixing bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown: a profile for a photovoltaic module frame and a photovoltaic module frame, including a profile body 10, the profile body 10 includes a support component 1, the support component 1 is fixedly connected to a connecting plate 2 on the side, the connecting plate 2 is respectively fixedly connected to a limiting component 3 and an installation component 4 on the side, the installation component 4 is located below the limiting component 3, the limiting component 3 includes a first fixed plate 31, the bottom of the first fixed plate 31 is fixedly connected to a telescopic compensation frame 32, the bottom of the telescopic compensation frame 32 is fixedly connected to a limiting plate 33, the end face of the telescopic compensation frame 32 is S-shaped, the support component 1 includes a first support frame 11, the surface of the first support frame 11 is fixedly connected to two second support frames 12, the two second support frames 12 are symmetrically distributed on the upper and lower sides of the first support frame 11, and a connecting cavity 5 is fixedly arranged between the first support frame 11 and the second support frame 12.

[0024] During use of the present invention, a telescopic compensation frame 32 is arranged between the first fixed plate 31 and the limiting plate 33, and the telescopic compensation frame 32 is designed to be S-shaped. When the profile body 10 as a whole produces thermal expansion deformation, the limiting of the solar cell becomes loose. At this time, the S-shaped telescopic compensation frame 32 will produce thermal expansion deformation to both sides, and the limiting plate 33 is pushed by the thermal expansion deformation produced by the telescopic compensation frame 32, thereby ensuring that the limiting plate 33 and the second fixed plate 94 have sufficient clamping force to limit and fix the solar cell.

[0025] Embodiment 2: According to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the mounting assembly 4 includes a mounting plate 41, a mounting groove 42 is provided on the surface of the mounting plate 41, and a threaded hole 43 is provided on the surface of the mounting plate 41, a first anti-slip layer 34 is provided at the bottom of the limiting plate 33, and the photovoltaic assembly frame includes four profile bodies 10, and the four profile bodies 10 are respectively fixedly connected by a fixing block 6, a connecting frame 7 and a first fixing bolt 8, the fixing block 6 is located inside the connecting cavity 5 and is fixedly connected to the support assembly 1, and the side of the fixing block 6 is threadedly connected to the first fixing bolt 8, the first fixing bolt 8 is plugged into the connecting frame 7, and the end of the first fixing bolt 8 passes through the surface of the connecting frame 7 and is threadedly connected to the fixing block 6 A reinforcing rod 71 is fixedly connected inside the connecting frame 7, the photovoltaic component frame includes a fixing component 9, the fixing component 9 includes a plug plate 91 and a second fixing bolt 96, the plug plate 91 is plugged into the mounting groove 42, and a telescopic rod 92 is fixedly connected to the upper part of the plug plate 91, a second fixing plate 94 is fixedly connected to the upper part of the telescopic rod 92, a second anti-slip layer 95 is fixedly connected to the upper part of the second fixing plate 94, the second fixing bolt 96 is located inside the threaded hole 43 and is threadedly connected to the mounting plate 41, a spring 93 is arranged on the surface of the telescopic rod 92, one end of the spring 93 is fixedly connected to the plug plate 91, and the other end of the spring 93 is fixedly connected to the second fixing plate 94.

[0026] In the present invention, when installing the solar cell, the plug plate 91 is first plugged into the installation groove 42, and then the second fixing bolt 96 is threadedly connected to the installation plate 41, and the two sides of the solar cell are respectively placed on the upper part of the second fixing plate 94 inside the two profile bodies 10, and the second fixing bolt 96 is rotated to push the second fixing plate 94 to temporarily clamp and fix the solar cell to avoid the position of the solar cell from shifting during the installation process. Similarly, the profile bodies 10 on the other two sides of the solar cell are installed and fixed, and the ends of the profile bodies 10 are fixedly connected to each other through the connecting frame 7, and are threadedly connected to the fixing block 6 through the first fixing bolt 8. , the installation of the entire photovoltaic module frame is completed. During use, according to the different amplitudes of temperature changes in the use area, the height of the second fixing bolt 96 pushing the second fixing plate 94 is adjusted, thereby adjusting the clamping and fixing force of the solar cell to avoid excessive clamping force. When the profile body 10 undergoes cold shrinkage deformation, it causes excessive squeezing of the solar cell, resulting in damage to the solar cell. The friction force on both sides of the limiting surface of the solar cell is improved by the first anti-slip layer 34 and the second anti-slip layer 95, thereby improving the stability of the fixation of the solar cell. The strength of the connecting frame 7 is improved by the reinforcement rod 71 fixed inside the connecting frame 7, thereby improving the overall stability.

[0027] The use method and working principle of the device: When installing the solar cell, first plug the plug plate 91 into the installation groove 42, then thread the second fixing bolt 96 into the installation plate 41, place the two sides of the solar cell on the upper part of the second fixing plate 94 inside the two profile bodies 10, and push the second fixing plate 94 to temporarily clamp and fix the solar cell by rotating the second fixing bolt 96 to avoid the position of the solar cell from shifting during the installation process. Similarly, install and fix the profile bodies 10 on the other two sides of the solar cell, and fix the ends of the profile bodies 10 to each other through the connecting frame 7, and thread the first fixing bolt 8 into the fixing block 6 to complete the installation of the entire photovoltaic module frame; By arranging a telescopic compensation frame 32 between the first fixed plate 31 and the limiting plate 33, and designing the telescopic compensation frame 32 into an S shape, when the profile body 10 as a whole generates thermal expansion deformation to loosen the limiting of the solar cell, the S-shaped telescopic compensation frame 32 will generate thermal expansion deformation to both sides, and the limiting plate 33 is pushed by the thermal expansion deformation generated by the telescopic compensation frame 32.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A profile for a photovoltaic module frame, characterized in that: The invention comprises a profile body (10), wherein the profile body (10) comprises a support assembly (1), a connecting plate (2) being fixedly connected to the side of the support assembly (1), a limiting assembly (3) and a mounting assembly (4) being fixedly connected to the side of the connecting plate (2), respectively, the mounting assembly (4) being located below the limiting assembly (3), the limiting assembly (3) comprising a first fixing plate (31), a telescopic compensation frame (32) being fixedly connected to the bottom of the first fixing plate (31), a limiting plate (33) being fixedly connected to the bottom of the telescopic compensation frame (32), and an end surface of the telescopic compensation frame (32) being S-shaped.

2. The profile for a photovoltaic module frame according to claim 1, characterized in that: The support assembly (1) comprises a first support frame (11), two second support frames (12) being fixedly connected to the surface of the first support frame (11), and the two second support frames (12) being symmetrically distributed on the upper and lower sides of the first support frame (11).

3. The profile for a photovoltaic module frame according to claim 2, characterized in that: A connecting cavity (5) is fixedly arranged between the first supporting frame (11) and the second supporting frame (12).

4. The profile for a photovoltaic module frame according to claim 3, characterized in that: A first anti-slip layer (34) is provided at the bottom of the limiting plate (33).

5. The profile for a photovoltaic module frame according to claim 4, characterized in that: The mounting assembly (4) comprises a mounting plate (41), a mounting groove (42) being provided on the surface of the mounting plate (41), and a threaded hole (43) being provided on the surface of the mounting plate (41).

6. A photovoltaic module frame, characterized in that: A profile for a photovoltaic module frame according to any one of claims 1 to 5 is used, wherein the photovoltaic module frame comprises four profile bodies (10), and the four profile bodies (10) are fixedly connected by a fixing block (6), a connecting frame (7) and a first fixing bolt (8).

7. A photovoltaic module frame according to claim 6, characterized in that: The fixing block (6) is located inside the connection cavity (5) and is fixedly connected to the support assembly (1), and a side surface of the fixing block (6) is threadedly connected to the first fixing bolt (8).

8. A photovoltaic module frame according to claim 6, characterized in that: The first fixing bolt (8) is plugged into the connecting frame (7), and the end of the first fixing bolt (8) passes through the surface of the connecting frame (7) and is threadedly connected to the fixing block (6), and a reinforcing rod (71) is fixedly connected inside the connecting frame (7).

9. A photovoltaic module frame according to claim 6, characterized in that: The photovoltaic assembly frame comprises a fixing assembly (9), the fixing assembly (9) comprising a plug plate (91) and a second fixing bolt (96), the plug plate (91) being plugged into the mounting groove (42), and a telescopic rod (92) being fixedly connected to the upper portion of the plug plate (91), a second fixing plate (94) being fixedly connected to the upper portion of the telescopic rod (92), a second anti-slip layer (95) being fixedly connected to the upper portion of the second fixing plate (94), and the second fixing bolt (96) being located inside the threaded hole (43) and being threadedly connected to the mounting plate (41).

10. A photovoltaic module frame according to claim 9, characterized in that: A spring (93) is provided on the surface of the telescopic rod (92); one end of the spring (93) is fixedly connected to the plug plate (91), and the other end of the spring (93) is fixedly connected to the second fixing plate (94).

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