A dust-proof high-load-resistant solar power generation photovoltaic module

Abstract

The application discloses a kind of dust accumulation resistant high load solar power generation photovoltaic module, belong to photovoltaic module technical field, comprising: module frame, solar cell glass laminated part, the module frame includes long frame, short frame, corner code component, cross bar, the long frame has a group of parallel arrangement, the short frame is vertically connected between long frame one end, is connected by corner code component, the cross bar is vertically connected between long frame, cross bar section is I-shaped, lower end surface is flat, upper end surface two sides are curved downward, middle is glueing area, and overflow glue groove is set in and two ends, cross bar is inserted into long frame, and assembly type is installed;The solar cell glass laminated part is installed in module frame, and the lower part of solar cell glass laminated part is supported by cross bar, and the upper part of cross bar is bonded using silicone adhesive.The photovoltaic module of the application has high bearing capacity, small glass deformation, reduced material cost, improved installation efficiency, and dust and rainwater cannot accumulate, reducing operation and maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of solar photovoltaic module technology, and specifically to a solar photovoltaic module that is resistant to dust accumulation and high load. Background Technology

[0002] The frame structure of photovoltaic (PV) modules is a crucial support system ensuring their long-term stable operation. As the core structure of the PV panel, the frame bears vital load requirements. However, with the increasing size of PV modules, solutions that simply protect the entire circumference of the solar cell glass laminate with a frame are no longer sufficient to meet these load requirements.

[0003] Existing photovoltaic modules typically have a double-wall structure. To increase the load-bearing capacity of photovoltaic modules, the wall thickness of existing module frames has been increased, as have the frame cross-sectional dimensions and linear density. However, this has increased the frame cost, such as... Figure 7 The image shown is a test diagram of glass deformation in current conventional photovoltaic module simulation analysis and actual load testing. It can be seen that the middle area of ​​the glass is still the point of maximum deformation and stress concentration. Stress concentration in the middle of the photovoltaic module glass can cause glass breakage during load testing or outdoor use, resulting in economic losses. In addition, when installed outdoors, photovoltaic modules are installed at an angle, and dust can accumulate in the area where the lower frame contacts the glass, affecting power generation and power plant revenue. Manual cleaning is required, increasing operation and maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to provide a high-load-bearing solar photovoltaic module that prevents dust accumulation, has high load-bearing capacity, minimal glass deformation, reduces costs, and prevents dust accumulation.

[0005] Technical Solution: This invention provides a dust-resistant and high-load-bearing solar photovoltaic module, comprising: a module frame and a solar cell glass laminate. The module frame includes a long frame, a short frame, corner brackets, and crossbars. A set of long frames are arranged in parallel. The short frames are vertically connected to one end of the long frames via corner brackets. The crossbars are vertically connected between the long frames. The crossbars have an I-shaped cross-section, a flat lower surface, and downward-curving upper surfaces on both sides. A glue application area is located in the middle, with glue overflow grooves at both ends. The crossbars are inserted into the long frames and are assembled. At least three crossbars are provided, one positioned on the long frame away from the short frame and close to the other. The outer edge is positioned, with the rest evenly distributed in the middle of the long frame; the upper part of the long frame is the long-side glass mounting cavity, and the lower part is the long-side component mounting cavity, cut at a 45° bevel angle with the mounting side of the short frame, and at a 90° right angle on the other side; the upper part of the short frame is the short-side glass mounting cavity, and the lower part is the short-side component mounting cavity, with both ends of the short frame cut at a 45° bevel angle; the solar cell glass laminate is installed inside the component frame, inserted into the long-side glass mounting cavity and the short-side glass mounting cavity, and the lower part of the solar cell glass laminate is supported by a crossbar, which is bonded with silicone, and has a buffering and shock-absorbing effect after solidification; the component frame is installed at an angle, with one side of the short frame on top.

[0006] Furthermore, in the aforementioned anti-dust accumulation and high-load resistant solar photovoltaic module, a first baffle and a second baffle are provided on both sides of the long frame, and a third baffle is provided inside. The first baffle and the third baffle form a long-side glass mounting cavity, and the second baffle and the third baffle form a long-side module mounting cavity. The length of the second baffle is greater than that of the third baffle, and the length of the third baffle is greater than that of the first baffle.

[0007] Furthermore, in the aforementioned anti-dust accumulation and high-load resistant solar photovoltaic module, a first vertical plate and a second vertical plate are provided on both sides of the short frame, and a third vertical plate is provided inside. The first vertical plate and the third vertical plate form a short-side glass mounting cavity, and the second vertical plate and the third vertical plate form a short-side module mounting cavity. The second vertical plate and the third vertical plate are of equal length and are both greater than the first vertical plate. The second vertical plate is a planar structure.

[0008] Furthermore, in the aforementioned anti-dust accumulation and high-load resistant solar photovoltaic module, the corner bracket module includes a long frame arm and a short frame arm. The long frame arm and the short frame arm are arranged perpendicularly, and the inner surface is provided with teeth. The long frame arm is inserted into the long side module mounting cavity, and the short frame arm is inserted into the short side module mounting cavity.

[0009] Furthermore, in the aforementioned anti-dust accumulation and high-load resistant solar photovoltaic module, the third baffle is bent 90° toward the second baffle, and the second and third vertical plates are bent inward by 90°.

[0010] Furthermore, in the aforementioned anti-dust accumulation and high-load resistant solar photovoltaic module, the long frame, short frame, corner bracket component, and crossbar are all made of high-strength aluminum alloy material, and the long frame and short frame are both single-wall structures. The inner walls of the long side component mounting cavity and the short side component mounting cavity are thickened and reinforced, and the inner wall of the opening surface has a boss design.

[0011] Furthermore, in the aforementioned anti-dust-accumulation and high-load-resistant solar photovoltaic module, the upper part of both ends of the crossbar is designed with a clearance section, the length of which is greater than or equal to the length of the third baffle.

[0012] Furthermore, in the aforementioned anti-dust accumulation and high-load resistant solar photovoltaic module, the lower end face of the crossbar is mounted on the second baffle on both sides, and after installation, the upper end face is flush with the upper end face of the third baffle.

[0013] Furthermore, in the aforementioned anti-dust-accumulation and high-load-resistant solar photovoltaic module, the depth of the clearance section is equal to the width of the bent edge of the third vertical plate.

[0014] As can be seen from the above technical solution, the present invention has the following beneficial effects: The dust-resistant and high-load-resistant solar photovoltaic module of the present invention uses a module frame made of high-strength alloy material. Based on the traditional long and short frames, a crossbar design is added, making the photovoltaic module more rationally stressed when bearing frontal loads, resulting in less glass deformation, fewer microcracks in the solar cells, and lower power generation attenuation. The lightweight design, with both the long and short frames being single-wall structures with locally increased wall thickness, and the use of high-strength aluminum alloy material, reduces material costs while meeting the module's load requirements. The installation adopts a prefabricated installation method, eliminating the use of self-tapping screws and eliminating the need for drilling holes in the frame, reducing manufacturing costs and improving installation efficiency. The crossbar is bonded to the solar cell glass laminate with silicone, providing a buffering and shock-absorbing function under vibration loads, and ensuring a firm and reliable bond. The photovoltaic module is installed at an angle, with no short frame at the lower angle; instead, a crossbar is placed near the outer end. Without the frame obstruction, dust and rainwater will not accumulate, reducing operation and maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a dust-resistant and high-load-resistant solar photovoltaic module according to the present invention; Figure 2 This is a schematic diagram of the long border of the present invention; Figure 3 This is a schematic diagram of the short frame of the present invention; Figure 4 This is a schematic diagram of the corner code of the component of the present invention; Figure 5 This is a schematic diagram of the crossbar installation of the present invention; Figure 6 This is a schematic diagram of the cross section of the crossbar of the present invention; Figure 7 The image shows the glass deformation test results for conventional photovoltaic modules during simulation analysis and actual load testing. Figure 8 Test diagram of glass deformation under load for a photovoltaic module designed with three horizontal bars and a short frame.

[0016] In the diagram: Component frame 1, solar cell glass laminate 2, long frame 11, short frame 12, corner bracket component 13, crossbar 14, glue application area 141, clearance section 142, long side glass mounting cavity 111, long side component mounting cavity 112, first baffle 113, second baffle 114, third baffle 115, short side glass mounting cavity 121, short side component mounting cavity 122, first vertical plate 123, second vertical plate 124, third vertical plate 125, long frame arm 131, short frame arm 132. Detailed Implementation

[0017] Example 1 like Figure 1-6A dust-resistant and high-load-resistant solar photovoltaic module is shown, comprising: a module frame 1 and a solar cell glass laminate 2. The module frame 1 includes a long frame 11, a short frame 12, corner bracket components 13, and crossbars 14. A set of long frames 11 are arranged in parallel. The short frames 12 are vertically connected to one end of the long frames 11 via corner bracket components 13. The crossbars 14 are vertically connected between the long frames 11. The crossbars 14 have an I-shaped cross-section, a flat lower end, and downward-curving upper ends. A glue application area 141 is located in the middle, with glue overflow grooves at both ends. The crossbars 14 are inserted into the long frames 11 and are assembled. At least three crossbars 14 are provided, one positioned on the long frame 11 away from the short frames 12 and near the outer edge of the other end. The remaining components are evenly distributed in the middle of the long frame 11; the upper part of the long frame 11 is the long side glass mounting cavity 111, and the lower part is the long side component mounting cavity 112. It is sawn at a 45° bevel angle with the mounting side of the short frame 12, and at a 90° right angle on the other side; the upper part of the short frame 12 is the short side glass mounting cavity 121, and the lower part is the short side component mounting cavity 122. Both ends of the short frame 12 are sawn at a 45° bevel angle; the solar cell glass laminate 2 is installed in the component frame 1, inserted into the long side glass mounting cavity 111 and the short side glass mounting cavity 121. The lower part of the solar cell glass laminate 2 is supported by a crossbar 14. The crossbar 14 is bonded with silicone, which has a buffering and shock absorption function under vibration load and is firmly and reliably bonded; the component frame 1 is installed at an angle, with one side of the short frame 12 on top. The addition of a crossbar 14 to the traditional long frame 11 and short frame 12 design makes the force distribution of the module frame 1 more reasonable when bearing the front load, resulting in less deformation of the solar cell glass laminate 2, fewer microcracks in the cells, and lower power generation attenuation. The module frame 1 is installed at an angle, and there is no short frame 12 at the lower end of the angle. Instead, a crossbar 14 is set near the outer end. Without the frame obstruction, dust and rainwater will not accumulate, reducing operation and maintenance costs.

[0018] In this embodiment, three crossbars 14 are provided. One crossbar is located on the long frame 11 away from the short frame 12 and near the outer side of the other end. The remaining crossbars are evenly distributed in the middle of the long frame 11. The two middle crossbars 14 are symmetrically arranged, and the distance between the two crossbars is equal to the distance from the short frame 12 or the crossbars 14 on both sides. This allows the load to be evenly distributed, improving the load-bearing capacity and reducing the amount of glass deformation.

[0019] like Figure 2The diagram shows a dust-resistant and high-load-resistant solar photovoltaic module. The long frame 11 has a first baffle 113 and a second baffle 114 on both sides, and a third baffle 115 inside. The first baffle 113 and the third baffle 115 form a long-side glass mounting cavity 111, and the second baffle 114 and the third baffle 115 form a long-side module mounting cavity 112. The length of the second baffle 114 is greater than that of the third baffle 115, and the length of the third baffle 115 is greater than that of the first baffle 113.

[0020] like Figure 3 The diagram shows a dust-resistant and high-load-resistant solar photovoltaic module. The short frame 12 has a first vertical plate 123 and a second vertical plate 124 on both sides, and a third vertical plate 125 inside. The first vertical plate 123 and the third vertical plate 125 form a short-side glass mounting cavity 121, and the second vertical plate 124 and the third vertical plate 125 form a short-side module mounting cavity 122. The second vertical plate 124 and the third vertical plate 125 have the same length and are both longer than the first vertical plate 123. The second vertical plate 124 has a planar structure.

[0021] like Figure 4 The diagram shows a dust-resistant and high-load-resistant solar photovoltaic module. The corner bracket module 13 includes a long frame arm 131 and a short frame arm 132. The long frame arm 131 and the short frame arm 132 are arranged perpendicularly, and the inner surface is provided with teeth. The long frame arm 131 is inserted into the long side module mounting cavity 112, and the short frame arm 132 is inserted into the short side module mounting cavity 122. The outer ends of the long frame arm 131 and the short frame arm 132 have an inlet design, and the outer side of the long frame arm 131 is provided with a groove as a differentiated foolproof design to facilitate installation and use.

[0022] Example 2 Based on Example 1, in this example, as... Figure 2 , 3 The diagram illustrates a dust-resistant and high-load-bearing solar photovoltaic module. The third baffle 115 is bent 90° towards the second baffle 114, and the second vertical plate 124 and the third vertical plate 125 are bent inwards at 90°. The long frame 11, short frame 12, corner bracket assembly 13, and crossbar 14 are all made of high-strength aluminum alloy. The long frame 11 and short frame 12 are both single-wall structures. The inner walls of the long-side assembly mounting cavity 112 and short-side assembly mounting cavity 122 are thickened and reinforced, and the inner walls of the opening surfaces have protrusions. This facilitates the limiting and positioning installation of the corner bracket assembly 13. The lightweight design, with the long frame 11 and short frame 12 being single-wall structures and locally thickened using high-strength aluminum alloy, reduces material costs while meeting the module load requirements.

[0023] like Figure 5The diagram illustrates a dust-resistant and high-load-bearing solar photovoltaic module. The upper ends of the crossbar 14 are designed with clearance sections 142, the length of which is greater than or equal to the length of the third baffle 115. The lower ends of the crossbar 14 are mounted on the second baffle 114 on both sides. After installation, the upper end of the crossbar 14 is flush with the upper end of the third baffle 115. The installation employs a modular assembly method, eliminating the need for self-tapping screws and drilling into the frame, thus reducing manufacturing costs and improving installation efficiency.

[0024] In this embodiment, the depth of the clearance section 142 is equal to the width of the bent edge of the third vertical plate 125.

[0025] like Figure 7 , 8 The illustrated photovoltaic module exhibits dust-resistant and high-load-resistant properties during a photovoltaic module load glass deformation test. Figure 7 For standard components, Figure 8 A set of long frame 11 is set up, with a short frame 12 at one end connected by a corner bracket assembly 13. In addition, three crossbars 14 are set up, one of which is set at the other end of the long frame 11, and the other two are evenly set in the middle of the long frame 11. It can be seen that when the front of the photovoltaic module is subjected to load, the deformation in the middle of the glass is greatly reduced when the three crossbars 14 are combined with one short frame 12, and the load-bearing capacity of the photovoltaic module is significantly improved.

[0026] It should be noted that the above description is merely a technical solution of the invention and not a limitation. Although the invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the invention without departing from the scope of the invention, and all such modifications and substitutions should be covered within the scope of the claims of the invention.

Claims

1. A dust-resistant and high-load-resistant solar photovoltaic module, characterized in that: include: The component frame (1) includes a long frame (11), a short frame (12), a corner bracket component (13), and a crossbar (14). The long frame (11) has a set of parallel components. The short frame (12) is vertically connected to one end of the long frame (11) and connected by the corner bracket component (13). The crossbar (14) is vertically connected between the long frames (11). The crossbar (14) has an I-shaped cross section, a flat lower end, and two sides of the upper end that are bent downwards. The middle part is a glue application area (141), and glue overflow grooves are provided at both ends. The crossbar (14) is inserted into the long frame (11) and is installed in an assembly manner. At least three crossbars (14) are provided. One is located on the long frame (11) away from the short frame (12) and close to the outer side of the other end. The rest are evenly distributed in the middle of the long frame (11). The upper part of the long frame (11) is a long glass mounting cavity (111), and the lower part is a long component mounting cavity (112). It is sawn at a 45° angle to the mounting side of the short frame (12), and at a 90° right angle to the other side. The upper part of the short frame (12) is a short glass mounting cavity (121), and the lower part is a short component mounting cavity (122). Both ends of the short frame (12) are sawn at a 45° bevel. A solar cell glass laminate (2) is installed inside the module frame (1) and inserted into the long side glass mounting cavity (111) and the short side glass mounting cavity (121). The lower part of the solar cell glass laminate (2) is supported by a crossbar (14). The crossbar (14) is bonded with silicone, which has a buffering and shock-absorbing effect after solidification. The component frame (1) is installed at an angle, with one side of the short frame (12) on top; The long frame (11) is provided with a first baffle (113) and a second baffle (114) on both sides, and a third baffle (115) is provided inside. The first baffle (113) and the third baffle (115) form a long side glass mounting cavity (111), and the second baffle (114) and the third baffle (115) form a long side component mounting cavity (112). The length of the second baffle (114) is greater than that of the third baffle (115), and the length of the third baffle (115) is greater than that of the first baffle (113). The short frame (12) is provided with a first vertical plate (123) and a second vertical plate (124) on both sides, and a third vertical plate (125) is provided inside. The first vertical plate (123) and the third vertical plate (125) form a short-side glass mounting cavity (121), and the second vertical plate (124) and the third vertical plate (125) form a short-side component mounting cavity (122). The second vertical plate (124) and the third vertical plate (125) are of equal length and are both greater than the first vertical plate (123). The second vertical plate (124) is a planar structure. The corner bracket assembly (13) includes a long frame arm (131) and a short frame arm (132). The long frame arm (131) and the short frame arm (132) are arranged perpendicularly, and the inner surface is provided with teeth. The long frame arm (131) is inserted into the long side assembly mounting cavity (112), and the short frame arm (132) is inserted into the short side assembly mounting cavity (122). The third baffle (115) bends 90° toward the second baffle (114); The second vertical plate (124) and the third vertical plate (125) are bent inward at 90°; The long frame (11), short frame (12), corner code component (13), and crossbar (14) are all made of high-strength aluminum alloy material. The long frame (11) and short frame (12) are both single-wall structures. The inner walls of the long side component mounting cavity (112) and short side component mounting cavity (122) are thickened and reinforced, and the inner wall of the opening surface has a boss design. The upper part of both ends of the crossbar (14) is designed with a clearance section (142), and the length of the clearance section (142) is greater than or equal to the length of the third baffle (115); The lower end face of the crossbar (14) is set on the second baffle (114) on both sides. After installation, the upper end face is flush with the upper end face of the third baffle (115). The depth of the clearance section (142) is equal to the width of the bent edge of the third vertical plate (125).

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