Photovoltaic panel aluminum alloy frame with active flow guide bottom columns

Abstract

The invention relates to the technical field of photovoltaic panel mounting aluminum frames, in particular to a photovoltaic panel aluminum alloy frame with active flow guide bottom columns, which comprises an outer frame made of an aluminum alloy material. According to the photovoltaic panel aluminum alloy frame with the active flow guide bottom column, the single column body is adopted for bottom supporting, the occupied space on the ground is small, the requirement for flatness is low, and installation is convenient; the telescopic bottom mounting column adopts an electric control lifting structure design and can be lifted according to a temperature sensing controller in the side frame, and then the cooling medium in a low-level environment is utilized to actively improve the heat dissipation performance, so that the photovoltaic power generation efficiency is further enhanced; the outer frame is formed by splicing and connecting four sets of independent side frames, the bottom heat dissipation pipes and the two bottom supporting arms are installed at the lower ends of the side frames, a series-connection cooling flow channel is formed, accurate control is conducted through the electric control valve, and therefore local cooling can be conducted in a targeted mode, and temperature control is more accurate.

Description

Technical Field

[0001] This invention relates to the field of aluminum frame technology for photovoltaic panel mounting, and in particular to an aluminum alloy frame for photovoltaic panels with an active flow guiding base column. Background Technology

[0002] The core of a photovoltaic panel is glass and solar cells. Therefore, it is brittle and lacks self-supporting ability, requiring an aluminum alloy frame to wrap around its outside to form a stable structure.

[0003] The aluminum alloy frame and bracket are lightweight yet strong, ensuring sufficient stability without placing excessive load on the mounting surface (roof, floor). They can secure the panel, enhance its protective sealing, eliminate stress dispersion, and improve installation adaptability.

[0004] To ensure the stability of the bottom installation, the current aluminum alloy frame requires a large number of bottom supports. These supports not only occupy a lot of bottom space and require a certain degree of flatness at the bottom, but also have a fixed structure, resulting in limited functionality. They cannot utilize the low-position environment to improve the heat dissipation of the photovoltaic panel, nor can they adjust the angle of the photovoltaic panel, resulting in fixed working efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the bottom support of the current aluminum alloy frame not only requires a lot of bottom space and has certain requirements for bottom flatness, but also has a fixed structure, resulting in limited functionality. It cannot utilize the low-position environment to improve the heat dissipation of the photovoltaic panel, nor can it adjust the angle of the photovoltaic panel, resulting in fixed working efficiency.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an aluminum alloy frame for photovoltaic panels with an active flow guiding bottom column, including an outer frame made of aluminum alloy, a hollow bottom support arm welded and fixed to the lower end of the outer frame, a bottom control plate welded and fixed to the lower surface of the bottom support arm, a retractable bottom mounting column provided at the lower end of the bottom control plate, a built-in flow guiding component installed inside the retractable bottom mounting column, and a bottom heat dissipation pipe for connecting the bottom support arm on the lower surface of the outer frame.

[0007] The outer frame is composed of four independent side frames assembled together, and a bottom support arm is connected to both sides of the lower end of each side frame.

[0008] The bottom control panel includes a main connecting plate, a bottom connecting seat fixed at the lower end of the main connecting plate, an electrically controlled adjusting support rod whose extended end is movably connected inside the bottom connecting seat, and an electrically controlled valve installed on the bottom connecting seat.

[0009] The retractable bottom mounting column includes a bottom fixed mounting column, an upper lifting column that slides onto the upper end of the bottom fixed mounting column, an internal adjusting support rod installed inside the upper lifting column, and a metal filter screen fixed to the upper end of the bottom fixed mounting column.

[0010] The built-in flow guiding assembly includes a centrifuge housing installed inside the bottom fixed mounting column, a centrifuge pump installed inside the centrifuge housing, and a flow guiding pipe installed at the upper end of the centrifuge housing. The centrifuge housing is connected to the electrically controlled valve through a flexible connecting pipe at the upper end of the flow guiding pipe.

[0011] The electrically controlled adjustable support rod is installed inside the upper lifting column.

[0012] A temperature sensor controller is installed inside the side frame.

[0013] An optical scanning probe is installed on the lower surface of the bottom support arm at the connection end of the outer frame.

[0014] A flexible corrugated pipe is provided between the bottom control panel and the upper lifting column to improve sealing.

[0015] A strip-shaped shock-absorbing pad is installed on the inner side of the side frame.

[0016] The beneficial effects of this invention are: (1) The aluminum alloy frame for photovoltaic panels with active flow guiding bottom column of the present invention uses a single column for bottom support, which occupies little ground space, has low flatness requirements, and is easy to install; (2) The retractable bottom mounting column adopts an electronically controlled lifting structure design, which can be raised and lowered according to the temperature sensor controller inside the side frame, and then actively improve the heat dissipation performance by using the cooling medium in the low-level environment, thereby further enhancing the efficiency of photovoltaic power generation. (3) The outer frame is composed of four independent side frames assembled and connected. The bottom heat pipe and two bottom support arms are installed at the bottom of the side frame to form a series cooling channel. The electronic control valve is used for precise control, so that local cooling can be targeted and the temperature control is more precise. (4) A bottom control panel is provided between the bottom support arm and the telescopic bottom mounting column. The bottom control panel allows the two to be installed separately and the angle can be adjusted. It also integrates an electric control valve, greatly enhancing the functional integration. (5) The retractable bottom mounting column can not only change the overall height of the frame and open and close the flow port of the built-in flow guide component, but also automatically complete maintenance and avoid the flow port from being blocked. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the structural layout of the bottom support arm in this invention.

[0021] 1. External frame; 2. Bottom support arm; 3. Bottom control panel; 31. Main connecting plate; 32. Bottom connecting seat; 33. Electrically controlled adjusting strut; 34. Electrically controlled valve; 4. Telescopic bottom mounting column; 41. Bottom fixed mounting column; 42. Top lifting column; 43. Internal adjusting strut; 44. Metal filter screen; 5. Built-in flow guide assembly; 51. Centrifugal housing; 52. Centrifugal pump; 53. Flow guide pipe; 6. Bottom heat dissipation pipe; 7. Temperature sensor controller; 8. Optical scanning probe; 9. Flexible corrugated pipe; 10. Strip shock-absorbing pad. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Figure 1 , Figure 2 and Figure 3 The aluminum alloy frame for photovoltaic panels with an active flow-guiding bottom column shown includes an outer frame 1 made of aluminum alloy. A hollow bottom support arm 2 is welded and fixed to the lower end of the outer frame 1. A bottom control plate 3 is welded and fixed to the lower surface of the bottom support arm 2. A retractable bottom mounting column 4 is provided at the lower end of the bottom control plate 3. An internal flow-guiding component 5 is installed inside the retractable bottom mounting column 4. A bottom heat dissipation pipe 6 for connecting the bottom support arm 2 is provided on the lower surface of the outer frame 1.

[0025] To facilitate installation and provide bottom support, the outer frame 1 is composed of four independent side frames assembled together, with a bottom support arm 2 connected to both sides of the lower end of each side frame.

[0026] To facilitate angle adjustment and flow guidance adjustment, the bottom control plate 3 includes a main connecting plate 31, a bottom connecting seat 32 fixed at the lower end of the main connecting plate 31, an electrically controlled adjustment support rod 33 whose extended end is movably connected inside the bottom connecting seat 32, and an electrically controlled valve 34 installed on the bottom connecting seat 32.

[0027] The electrically controlled adjusting strut 33 changes the adjustment angle of the main connecting plate 31 by extending and retracting, and the electrically controlled valve 34 is used to control the flow direction.

[0028] To facilitate the electric lifting adjustment, the retractable bottom mounting column 4 includes a bottom fixed mounting column 41, an upper lifting column 42 that is slidably fitted on the upper end of the bottom fixed mounting column 41, an internal adjusting support rod 43 installed inside the upper lifting column 42, and a metal filter screen 44 fixed on the upper end of the bottom fixed mounting column 41.

[0029] The internal adjustment strut 43 adjusts the upper lifting column 42 by telescopic control. When the upper lifting column 42 rises or falls, it adjusts the opening and closing of the metal filter screen 44 and can scrape off impurities on the outside of the metal filter screen 44.

[0030] To facilitate internal centrifugal pressurization and flow guidance, the built-in flow guidance assembly 5 includes a centrifugal housing 51 installed inside the bottom fixed mounting column 41, a centrifugal pump 52 installed inside the centrifugal housing 51, and a flow guide pipe 53 installed at the upper end of the centrifugal housing 51. The centrifugal housing 51 is connected to the electric control valve 34 through a flexible connecting pipe at the upper end of the flow guide pipe 53.

[0031] External cooling media include external air or external cooling water, depending on the installation location. When installed on the ground, external air is drawn in for cooling; when installed on water, water is drawn in for cooling.

[0032] The cooling medium is filtered through the metal filter screen 44 and flows into the bottom fixed mounting column 41. Then it is drawn in by the high-speed rotating centrifugal pump 52 and then guided upward by the guide pipe 53 to the solenoid valve 34. The solenoid valve 34 then selects to guide it into the bottom support arm 2 and the bottom heat dissipation pipe 6, and then discharges it outward from the bottom support arm 2 at the drainage position.

[0033] To facilitate internal installation, the electrically adjustable support rod 33 is installed inside the upper lifting column 42.

[0034] To facilitate temperature monitoring and control, a temperature sensor controller 7 is installed inside the side frame.

[0035] Used to monitor the temperature of the contact surface between the side frame and the photovoltaic panel at different locations.

[0036] To facilitate scanning of light intensity, an optical scanning probe 8 is installed on the lower surface of the bottom support arm 2 at the connection end of the outer frame 1.

[0037] The optical scanning probe 8 scans the light intensity at the lower end. When the light intensity on one side is significantly weaker than that on the other side, the optical scanning probe 8 at the stronger end controls the electronically controlled adjustment support rod 33 on that side to retract, while the optical scanning probe 8 at the weaker end controls the electronically controlled adjustment support rod 33 on that side to extend, thereby changing the angle of the bottom control plate 3 and ensuring that the light intensity at the bottom periphery is relatively consistent.

[0038] To improve sealing and ensure internal dust protection, a flexible corrugated pipe 9 is installed between the bottom control panel 3 and the upper lifting column 42 to enhance sealing.

[0039] The upper and lower openings of the flexible corrugated pipe 9 are respectively installed on the lower surface of the bottom control plate 3 and the upper opening of the upper lifting column 42.

[0040] To improve lateral assembly stability and vibration damping, strip-shaped shock-absorbing pads 10 are installed on the inner side of the side frame.

[0041] A strip mounting groove is made on the inner side of the side frame, and the strip damping pad 10 is inserted into the strip mounting groove.

[0042] Equipment working principle The core of this aluminum alloy frame solves the problems of large space occupation, poor heat dissipation, and fixed angle of traditional frames through a collaborative mechanism of "electrically controlled lifting adjustment + active heat dissipation + adaptive light angle". It is specifically designed for the efficient installation and stable operation of photovoltaic panels. The principle of each core module is as follows: 1. Dual adjustment principle of height and angle: The retractable bottom mounting column 4 is the core support and adjustment component. The bottom fixed mounting column 41 is fixed to the mounting base. The internal adjustment support rod 43 and the upper lifting column 42 form a telescopic transmission structure. The telescopic movement of the internal adjustment support rod 43 drives the upper lifting column 42 to slide axially along the bottom fixed mounting column 41, realizing flexible adjustment of the overall height of the frame (adapting to the height requirements of different installation scenarios). At the same time, the main connecting plate 31 of the bottom control plate 3 and the bottom connecting seat 32 are connected by the electrically controlled adjustment support rod 33. The electrically controlled adjustment support rod 33 can change the tilt angle of the main connecting plate 31 by telescopic movement, thereby driving the outer frame 1 and photovoltaic panel to adjust synchronously and achieve optimized light angle. The flexible corrugated pipe 9 between the bottom adjustment plate 3 and the upper lifting column 42 can deform synchronously with the change of angle and height, which not only ensures the sealing of the connection part (preventing dust and impurities from entering), but also does not affect the adjustment action.

[0043] 2. Active Flow-Guided Cooling Principle: The cooling system consists of a built-in flow-guiding component 5, a bottom support arm 2, a bottom heat dissipation pipe 6, and an electrically controlled valve 34, forming a closed flow channel. A temperature sensor controller 7 within the side frame monitors the temperature of the contact surface between the photovoltaic panel and the frame in real time. When the temperature exceeds a preset threshold (typically 45℃), it triggers the built-in flow-guiding component 5 to start: a centrifugal pump 52 rotates at high speed within a centrifugal housing 51, generating negative pressure. This pressure draws in external cooling medium (air for ground installations, water for water installations) after it has been filtered through a metal filter screen 44 at the top of the bottom fixed mounting column 41. The medium is then transported to the electrically controlled valve 34 via a flow-guiding pipe 53 and a flexible connecting pipe. Based on the local temperature data fed back by the temperature sensor controller 7, the electrically controlled valve 34 precisely controls the flow direction of the cooling medium, directing it to the bottom support arm 2 and bottom heat dissipation pipe 6 corresponding to the higher-temperature area. The medium carries away heat through its flow and is finally discharged from a preset outlet, achieving targeted localized cooling. The metal filter screen 44 can prevent impurities from entering the flow channel and causing blockage, and the upper lifting column 42 can scrape off the impurities attached to its outside when it is raised and lowered, thus achieving self-cleaning.

[0044] 3. Principle of Adaptive Light Angle Adjustment: The optical scanning probe 8 on the lower surface of the bottom support arm 2 scans the light intensity of different areas below in real time. When the difference in light intensity between the two sides exceeds a set threshold (e.g., 10%), an angle adjustment command is triggered: the optical scanning probe 8 on the side with stronger light controls the retraction of the electrically controlled adjustment support rod 33 on that side, and the optical scanning probe 8 on the side with weaker light controls the extension of the electrically controlled adjustment support rod 33 on that side. By changing the tilt angle of the main connecting plate 31 through the difference in extension and retraction of the electrically controlled adjustment support rods 33 on both sides, the external frame 1 and the photovoltaic panel are adjusted to adjust their orientation, so that the light intensity on the panel surface tends to be uniform, thereby improving the power generation efficiency.

[0045] 4. Vibration Damping and Protection Principle: The strip-shaped vibration damping pads 10 on the inner side of the side frame are made of elastic material (such as rubber) to buffer the vibration and impact (such as wind force and installation collisions) experienced by the photovoltaic panel during installation and operation, preventing damage to the panel due to stress concentration. Simultaneously, the strip-shaped vibration damping pads 10 fill the gap between the panel and the side frame, improving sealing performance and preventing rainwater and dust infiltration. The outer frame 1 is assembled from four sets of independent side frames, facilitating transportation and installation, and allowing for flexible adjustment of assembly precision according to the photovoltaic panel size, thus improving adaptability.

[0046] Equipment working process Phase 1: Installation, Fixing, and Initial Debugging (0-40 min) 1. The operator shall, according to the installation scenario (ground / water body), vertically fix the bottom fixed mounting column 41 to the preset mounting base surface, ensuring that the bottom fixed mounting column 41 is stable and does not wobble. At this time, the upper lifting column 42 is in the retracted state, and the metal filter screen 44 is covered by the upper lifting column 42, and the flow guiding function is not activated.

[0047] 2. Assemble the four sets of side frames to form the outer frame 1. Insert the strip-shaped shock-absorbing pads 10 into the strip-shaped mounting grooves on the inner side of the side frame. Then embed the photovoltaic panel into the outer frame 1. The strip-shaped shock-absorbing pads 10 are used to achieve flexible fixing and sealing of the panel.

[0048] 3. Weld and fix the bottom support arm 2 at the lower end of the outer frame 1 to the main connecting plate 31 of the bottom control plate 3 to ensure smooth communication between the bottom support arm 2 and the bottom heat dissipation pipe 6; at the same time, install the two ends of the flexible corrugated pipe 9 on the lower surface of the bottom control plate 3 and the upper opening of the upper lifting column 42 respectively to complete the sealed assembly.

[0049] 4. Start the initial debugging program, drive the internal adjusting support rod 43 to extend and retract through the control system, adjust the upper lifting column 42 to the target height, so that the photovoltaic panel reaches the initial installation height; then start the optical scanning probe 8 and the electronically controlled adjusting support rod 33 to adjust the photovoltaic panel to a horizontal state and complete the initial positioning.

[0050] Phase 2: Temperature regulation during operation (continuous during operation) 1. When the photovoltaic panel is running, the temperature sensor controller 7 inside the side frame monitors the temperature data of each area in real time and transmits it to the control system. When the temperature of a certain side frame area is >45℃, the control system determines that the area needs to be cooled and triggers the built-in flow guiding component 5 of the corresponding area to start.

[0051] 2. The centrifugal pump 52 starts to rotate at high speed inside the centrifugal housing 51, generating negative pressure suction, which draws the external cooling medium (air or water) into the bottom fixed mounting column 41 after being filtered through the metal filter screen 44. The filtered medium then enters the guide pipe 53.

[0052] 3. The control system controls the solenoid valve 34 to open the corresponding flow channel. The cooling medium flows into the bottom support arm 2 and the bottom heat dissipation pipe 6 in the higher temperature area through the flexible connecting pipe and the solenoid valve 34. During the flow in the flow channel, it absorbs the heat transferred by the photovoltaic panel. The medium with the increased temperature is discharged from the drain port.

[0053] 4. When the temperature sensor controller 7 detects that the temperature in the area has dropped below 40°C, the control system triggers the centrifugal pump 52 to decelerate until it stops, and the electric control valve 34 closes the corresponding flow channel, completing one cooling cycle; if the temperature in other areas still exceeds the standard, the above steps are repeated to cool down the area.

[0054] Phase 3: Adaptive adjustment of illumination angle (continuous during operation) 1. The optical scanning probe 8 on the lower surface of the bottom support arm 2 collects light intensity data every 15 minutes and transmits the data from both sides to the control system for comparative analysis. For example, if the optical scanning probe 8 on the east side detects a light intensity of 750W / m² and the west side detects 500W / m², with an intensity difference >10%, the angle adjustment is triggered.

[0055] 2. The control system sends an extension command to the west-side electrically controlled adjustable support rod 33 and a retraction command to the east-side electrically controlled adjustable support rod 33: the west-side electrically controlled adjustable support rod 33 extends to raise the west side of the main connecting plate 31, and the east-side electrically controlled adjustable support rod 33 retracts to lower the east side of the main connecting plate 31, causing the outer frame 1 and the photovoltaic panel to tilt to the east.

[0056] 3. The optical scanning probe 8 continuously monitors the light intensity. When the difference in light intensity between the two sides is less than 5%, the control system triggers the electronically controlled adjustment support rod 33 to stop moving and lock the current angle to ensure uniform illumination on the photovoltaic panel surface. At night or when the light intensity is less than 200W / m², the electronically controlled adjustment support rod 33 resets to restore the panel to a horizontal state.

[0057] Phase 4: Height adjustment and maintenance cleaning (as needed) 1. When the frame height needs to be adjusted (such as to deal with water accumulation, vegetation growth, etc.), the internal adjusting support rod 43 is extended and retracted through the control system. The upper lifting column 42 slides along the bottom fixed mounting column 41 to the target height and then locks. The flexible corrugated pipe 9 deforms synchronously to adapt to the new height and maintains a seal.

[0058] 2. When impurities adhere to the metal filter screen 44, causing a decrease in flow guiding efficiency, the control system triggers the internal adjusting support rod 43 to drive the upper lifting column 42 to rise and fall rapidly multiple times. The lower edge of the upper lifting column 42 scrapes the outside of the metal filter screen 44 to remove the attached impurities, thus achieving self-cleaning. If there are too many impurities, it can be manually disassembled and cleaned, and then reinstalled and reset.

[0059] Phase 5: Shutdown and Storage (During maintenance or long-term shutdown) 1. When maintenance is required, first shut down all operating components (centrifugal pump 52, electrically controlled adjusting support rod 33, etc.) through the control system, then drive the internal adjusting support rod 43 to retract, lower the upper lifting column 42 to the lowest position, cover the metal filter screen 44, and prevent impurities from entering.

[0060] 2. If the photovoltaic panel needs to be disassembled, first disassemble the assembly connection of the outer frame 1, then take out the panel, and inspect the strip shock-absorbing pad 10, bottom heat dissipation pipe 6 and other components. If any are damaged, replace them. After maintenance, reassemble according to the reverse of the installation steps.

[0061] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An aluminum alloy frame for photovoltaic panels with active wind deflector posts, comprising an outer frame (1) in aluminum alloy material, characterized by the fact that: The bottom support arm (2) with hollow structure is welded and fixed at the lower end of the outer frame (1), the bottom control disc (3) is welded and fixed at the lower surface of the bottom support arm (2), the telescopic bottom mounting column (4) is arranged at the lower end of the bottom control disc (3), the built-in flow guide assembly (5) is installed in the telescopic bottom mounting column (4), and the bottom heat dissipation pipe (6) for communicating with the bottom support arm (2) is arranged on the lower surface of the outer frame (1).

2. The aluminum alloy frame for a photovoltaic panel having an active flow guiding post according to claim 1, characterized in that: The outer frame (1) is composed of four groups of independent side frames connected by assembly.

3. The aluminum alloy frame for a photovoltaic panel having an active flow- directing column according to claim 2, characterized in that: The bottom control disc (3) comprises a main connecting disc (31), a bottom connecting seat (32) fixed at the lower end of the main connecting disc (31), an electric control adjusting support rod (33) movably connected at the extension end in the bottom connecting seat (32) and an electric control valve (34) installed on the bottom connecting seat (32).

4. The aluminum alloy frame for a photovoltaic panel having an active flow guiding post according to claim 1, characterized in that: The telescopic bottom mounting column (4) comprises a bottom fixed mounting column (41), an upper lifting column (42) slidably sleeved on the upper end of the bottom fixed mounting column (41), an internal adjusting support rod (43) installed in the upper lifting column (42) and a metal filter screen (44) fixed on the upper end of the bottom fixed mounting column (41).

5. The aluminum alloy frame for a photovoltaic panel having an active flow guiding post according to claim 3, characterized in that: The built-in flow guide assembly (5) comprises a centrifugal cover (51) installed in the bottom fixed mounting column (41), a centrifugal pump (52) installed in the centrifugal cover (51) and a flow guide pipe (53) installed on the upper end of the centrifugal cover (51), and the centrifugal cover (51) is communicated with the electric control valve (34) through the flexible connecting pipe at the upper end of the flow guide pipe (53).

6. The aluminum alloy frame for a photovoltaic panel having an actively channeled post according to claim 3, characterized in that: The electric control adjusting support rod (33) is installed in the upper lifting column (42).

7. The aluminum alloy frame for a photovoltaic panel having an active flow guiding post according to claim 3, characterized in that: The temperature sensing controller (7) is installed in the side frame.

8. The aluminum alloy frame for a photovoltaic panel having an actively guided bottom post according to claim 1, characterized in that: The optical scanning probe (8) is installed at the connecting end of the bottom support arm (2) on the lower surface of the outer frame (1).

9. The aluminum alloy frame for a photovoltaic panel having an actively channeled post according to claim 3, characterized in that: The flexible bellows (9) with sealing performance is arranged between the bottom control disc (3) and the upper lifting column (42).

10. The aluminum alloy frame for a photovoltaic panel having an actively channeled post according to claim 2, characterized in that: The strip-shaped damping pad (10) is installed on the inner side of the side frame.

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