Wind-load-resistant and corrosion-resistant photovoltaic module frame

Abstract

The utility model discloses a wind-load-resistant and corrosion-resistant photovoltaic module frame. The wind-load-resistant and corrosion-resistant photovoltaic module frame is characterized in that a bracket is arranged at the lower end of a support frame; a guide rail groove is formed in the inner side of the supporting frame, a square nut is arranged in the middle of the guide rail groove, a bolt is arranged in the middle of the square nut, a spring gasket is arranged on the side face of the head of the bolt, and an annular gasket is arranged on the side face of the spring gasket. According to the utility model, the installation mode of the bolt and the guide rail groove is improved, the fatigue risk can be reduced, the guide rail groove does not need to be punched to damage an oxide film, the contact part of the guide rail groove and the bolt has no electrochemical reaction, and the installation of the photovoltaic module is completed. The guide rail groove is of a double-layer design, sectional inertia moment is increased, frame bending resistance is improved, and the load failure risk of the photovoltaic module is reduced.

Description

Technical Field

[0001] The utility model belongs to the photovoltaic related technical field, and specifically relates to a wind load resistant and corrosion resistant photovoltaic component frame. Background Art

[0002] In recent years, with the continuous growth of onshore photovoltaic installed capacity, land resources are becoming a key factor in the large-scale development of photovoltaics. On the contrary, the sea area is vast, the sunshine is sufficient and unobstructed, and the open space is considerable, which has quickly entered people's field of vision. The global offshore photovoltaic installed capacity is about 4000GW, and the overall potential capacity is huge.

[0003] Compared with land, offshore photovoltaics faces more complex challenges than onshore photovoltaics due to its special environment. The combined effects of high temperature, high humidity, high salt fog, strong winds, strong waves, and heavy precipitation on photovoltaic modules lead to reduced power generation efficiency and shortened lifespan.

[0004] For the frames of photovoltaic modules, high salt fog and strong winds on the sea surface have brought severe tests to the reliability of photovoltaic module installation. There are two common installation methods for photovoltaic modules. One is block installation, that is, using aluminum alloy blocks to press the A side of the frame, and then using bolts to connect the blocks and the bracket and tighten them. This installation method is prone to mechanical fatigue under the influence of long-term wind loads on the sea surface, and the blocks are loose, resulting in installation failure; the other is installation with mounting holes, punching waist-shaped mounting holes on the C side of the frame, and using bolts to connect the C side of the frame and the bracket and tighten them. Under long-term strong wind conditions, the mounting holes on the C side of the frame will be torn and deformed, and the mounting holes are punched, the oxide film on the inner wall of the mounting holes is damaged, and electrochemical reactions are prone to occur at the contact position with the bolts, causing the mounting holes to become brittle, the installation strength to decrease, and the brackets to corrode to varying degrees. Utility Model Content

[0005] The purpose of the utility model is to provide a wind-resistant and corrosion-resistant photovoltaic component frame to solve the problem that the traditional photovoltaic component installation method proposed in the above background technology is prone to mechanical fatigue under the influence of long-term wind load on the sea surface, the pressing block becomes loose, resulting in installation failure, and the installation hole will be torn and deformed. The installation hole is a punched hole, the oxide film on the inner wall of the installation hole is damaged, and electrochemical reactions are prone to occur at the contact position with the bolt, causing the installation hole to become brittle, the installation strength to decrease, and the bracket also suffers from varying degrees of corrosion.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind-load-resistant and corrosion-resistant photovoltaic module frame, comprising a bracket provided at the lower end of the support frame;

[0007] A guide rail groove is provided on the inner side of the support frame, and the design size of the guide rail groove must be able to accommodate the insertion of M square nuts. A square nut is provided at the middle position of the guide rail groove, a bolt is provided at the middle position of the square nut, a spring washer is provided at the side position of the head of the bolt, and a ring washer is provided at the side position of the spring washer. When installing the photovoltaic component, first insert the square nut into the guide rail groove, place the photovoltaic component on the bracket, and the bolt passes through the spring washer, the ring washer, the bracket, and the square nut in turn, and the bolt is tightened to complete the installation of the photovoltaic component.

[0008] Preferably, the support frame is provided with a mounting groove near the upper end, and the mounting groove is formed by the structure of the support frame.

[0009] Preferably, a glue overflow groove is provided at the upper inner side surface of the installation groove, and the glue overflow groove is connected to the installation groove.

[0010] Preferably, an extrusion inflatable gas is provided at the middle position of the support frame close to the outer side surface, a connecting through pipe is provided at the upper end position of the extrusion inflatable gas, and a rubber extrusion airbag is provided at the end position of the connecting through pipe and at the upper and lower inner side surfaces of the mounting groove, and the extrusion inflatable gas can inflate the rubber extrusion airbag so that it expands and squeezes toward the side.

[0011] Preferably, a connecting telescopic body is provided at an inner position of the extruded inflatable body, and the connecting telescopic body is a layered compression structure.

[0012] Preferably, an auxiliary support lifting plate is provided at the lower end of the connecting telescopic body, and the auxiliary support lifting plate is connected to the lower surface of the connecting telescopic body by adhesive.

[0013] Preferably, a connecting threaded rod is provided at the bottom of the auxiliary supporting lifting plate, and the connecting threaded rod is welded to the auxiliary supporting lifting plate.

[0014] Preferably, a toggle adjustment knob is provided on the outer side surface of the connecting threaded rod, a thread is provided on the inner side surface of the toggle adjustment knob, vertical lines are provided on the outer side surface of the toggle adjustment knob, and the toggle adjustment knob is rotatably connected to the extruded inflatable body through a rotating shaft.

[0015] Compared with the prior art, the utility model provides a wind-resistant and corrosion-resistant photovoltaic module frame, which has the following beneficial effects:

[0016] 1. In the wind-resistant and corrosion-resistant photovoltaic component frame, a guide rail groove is provided on the inner side of the support frame. The design size of the guide rail groove needs to be able to meet the requirements of inserting an M square nut. A square nut is provided at the middle position of the guide rail groove, and a bolt is provided at the middle position of the square nut. A spring gasket is provided at the side position of the head of the bolt, and a ring gasket is provided at the side position of the spring gasket. When installing the photovoltaic component, first insert the square nut into the guide rail groove, place the photovoltaic component on the bracket, and the bolt passes through the spring gasket, the ring gasket, the bracket, and the square nut in turn. Tighten the bolt to complete the installation of the photovoltaic component. The utility model is used to improve the installation method of bolts + guide rail grooves, which can reduce fatigue risks. The guide rail groove does not need to be punched to destroy the oxide film, and there is no electrochemical reaction at the contact place with the bolt. The guide rail groove is a double-layer design, which increases the moment of inertia of the section, increases the bending resistance of the frame, and reduces the risk of load failure of the photovoltaic component.

[0017] 2. In the wind-resistant and corrosion-resistant photovoltaic component frame, a guide rail groove is provided on the inner side of the support frame. The design size of the guide rail groove needs to be able to accommodate the insertion of M square nuts. A square nut is provided at the middle position of the guide rail groove, a bolt is provided at the middle position of the square nut, a spring gasket is provided at the side position of the bolt head, and a ring gasket is provided at the side position of the spring gasket. When installing the photovoltaic component, first insert the square nut into the guide rail groove, place the photovoltaic component on the bracket, and the bolt passes through the spring gasket, the ring gasket, the bracket, and the square nut in turn. Tighten the bolt to complete the installation of the photovoltaic component. The improvement made by the utility model can make the wind-resistant and corrosion-resistant photovoltaic component frame of the photovoltaic panel do not need to be injected with glue, and the rubber extrusion airbag is used for extrusion auxiliary support, which is convenient for the subsequent replacement of photovoltaic panels and improves the utilization rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the wind-resistant and corrosion-resistant photovoltaic component frame of the present invention.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the wind-resistant and corrosion-resistant photovoltaic component frame of the present invention.

[0020] Figure 3 It is a schematic diagram of the enlarged structure of the wind-resistant and corrosion-resistant photovoltaic assembly frame at the position of the extruded filling gas of the utility model.

[0021] In the figure: 1. Support frame; 2. Mounting groove; 3. Glue overflow groove; 4. Guide rail groove; 5. Bracket; 6. Bolt; 7. Spring washer; 8. Ring washer; 9. Square nut; 10. Extrusion inflation gas; 11. Turn the adjustment knob; 12. Connect threaded rod; 13. Auxiliary support lifting plate; 14. Connect telescopic body; 15. Connect through pipe; 16. Rubber extrusion airbag. DETAILED DESCRIPTION

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

[0023] The utility model provides Figure 1-3 As shown, a wind-load-resistant and corrosion-resistant photovoltaic component frame includes a bracket 5 arranged at the lower end of a support frame 1; a guide rail groove 4 is arranged on the inner side of the support frame 1, and the design size of the guide rail groove 4 needs to be able to accommodate an M8 square nut, a square nut 9 is arranged at the middle position of the guide rail groove 4, a bolt 6 is arranged at the middle position of the square nut 9, a spring gasket 7 is arranged at the side position of the head of the bolt 6, and a ring gasket 8 is arranged at the side position of the spring gasket 7. When installing the photovoltaic component, the square nut 9 is first inserted into the guide rail groove 4, and the photovoltaic component is placed on the bracket 5. The bolt 6 passes through the spring gasket 7, the ring gasket 8, the bracket 5, and the square nut 9 in turn, and the bolt 6 is tightened to complete the installation of the photovoltaic component. The utility model is used to improve the installation method of the bolt 6+guide rail groove 4, which can reduce the risk of fatigue. The guide rail groove 4 does not need to be punched to destroy the oxide film, and there is no electrochemical reaction at the contact place with the bolt 6. The guide rail groove 4 is a double-layer design, which increases the moment of inertia of the section, increases the bending resistance of the frame, and reduces the risk of load failure of the photovoltaic component.

[0024] like Figure 1 As shown, a mounting groove 2 is arranged near the upper end of the support frame 1, and the mounting groove 2 is formed by the structure of the support frame 1. A glue overflow groove 3 is arranged on the upper inner side surface of the mounting groove 2, and the glue overflow groove 3 is connected with the mounting groove 2. The mounting groove 2 is used for the structure of the photovoltaic panel to be plugged in and installed in a limited position, and the glue overflow groove 3 is used for injecting glue so that the photovoltaic panel and the support frame 1 are adhered to prevent them from sliding and falling off.

[0025] like Figure 3 As shown, an extrusion inflatable body 10 is provided at the middle position of the support frame 1 near the outer side surface, a connecting tube 15 is provided at the upper end position of the extrusion inflatable body 10, and a rubber extrusion airbag 16 is provided at the end position of the connecting tube 15 and at the upper and lower inner side surfaces of the mounting groove 2. The extrusion inflatable body 10 can inflate the rubber extrusion airbag 16 so that it expands and squeezes laterally. The improvement made by the utility model can make the photovoltaic panel resistant to wind load and corrosion, and the photovoltaic component frame does not need to be injected with glue to be extruded and auxiliary supported by the rubber extrusion airbag 16, which facilitates the subsequent replacement of photovoltaic panels and improves the utilization rate of resources.

[0026] like Figure 3As shown, a connecting telescopic body 14 is provided at the internal position of the extruded inflatable body 10, and the connecting telescopic body 14 is a layered compression structure. An auxiliary support lifting plate 13 is provided at the lower end position of the connecting telescopic body 14, and the auxiliary support lifting plate 13 is connected to the lower surface of the connecting telescopic body 14 by adhesive. A connecting threaded rod 12 is provided at the bottom position of the auxiliary support lifting plate 13, and the connecting threaded rod 12 is welded to the auxiliary support lifting plate 13. A toggle adjustment knob 11 is provided at the outer side surface of the connecting threaded rod 12, and the inner side surface of the toggle adjustment knob 11 A thread is provided at the position, and vertical lines are provided at the outer side position of the toggle adjustment knob 11. The toggle adjustment knob 11 is rotatably connected to the extruded inflatable body 10 through a rotating shaft. When in use, by rotating the toggle adjustment knob 11, the connecting threaded rod 12 will move upward due to the thread to compress the connecting telescopic body 14 to reduce its volume and inflate the inside of the rubber extruded airbag body 16, and vice versa. The vertical lines provided at the outer position of the toggle adjustment knob 11 can increase the friction between the user's hand and make it easier to rotate and adjust.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 wind-resistant and corrosion-resistant photovoltaic module frame, comprising a support frame (1) A bracket (5) is provided at the lower end of the support frame (1); Features: A guide rail groove (4) is arranged on the inner side of the support frame (1), and the design size of the guide rail groove (4) needs to be able to meet the requirements of inserting an M8 square nut. A square nut (9) is arranged at the middle position of the guide rail groove (4), and a bolt (6) is arranged at the middle position of the square nut (9). A spring washer (7) is arranged at the side position of the head of the bolt (6), and a ring washer (8) is arranged at the side position of the spring washer (7). When installing the photovoltaic module, the square nut (9) is first inserted into the guide rail groove (4), and the photovoltaic module is placed on the bracket (5). The bolt (6) passes through the spring washer (7), the ring washer (8), the bracket (5), and the square nut (9) in sequence, and the bolt (6) is tightened to complete the installation of the photovoltaic module.

2. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 1, characterized in that: The support frame (1) has a mounting groove (2) disposed near the upper end thereof, wherein the mounting groove (2) is formed by the structure of the support frame (1).

3. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 2, characterized in that: An overflowing glue groove (3) is provided at the upper inner side surface of the installation groove (2), and the overflowing glue groove (3) is in communication with the installation groove (2).

4. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 1, characterized in that: An extrusion inflatable body (10) is provided at a middle position close to the outer side surface of the support frame (1), a connecting tube (15) is provided at the upper end of the extrusion inflatable body (10), and a rubber extrusion airbag (16) is provided at the end position of the connecting tube (15) and at the upper and lower inner side surfaces of the mounting groove (2), and the extrusion inflatable body (10) can inflate the rubber extrusion airbag (16) so that it expands and extrude toward the side.

5. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 4, characterized in that: A connecting telescopic body (14) is provided at an internal position of the extruded inflatable body (10), and the connecting telescopic body (14) is a layered compression structure.

6. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 5, characterized in that: An auxiliary support lifting plate (13) is provided at the lower end of the connecting telescopic body (14), and the auxiliary support lifting plate (13) is connected to the lower surface of the connecting telescopic body (14) by means of adhesive.

7. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 6, characterized in that: A connecting threaded rod (12) is provided at the bottom of the auxiliary support lifting plate (13), and the connecting threaded rod (12) is welded to the auxiliary support lifting plate (13).

8. The wind-resistant and corrosion-resistant photovoltaic module frame according to claim 7, characterized in that: A toggle adjustment knob (11) is provided on the outer side of the connecting threaded rod (12), a thread is provided on the inner side of the toggle adjustment knob (11), vertical lines are provided on the outer side of the toggle adjustment knob (11), and the toggle adjustment knob (11) is rotatably connected to the extruded inflatable body (10) via a rotating shaft.

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