Low-power-consumption photovoltaic module heat dissipation structure

Abstract

The invention relates to the technical field of photovoltaic modules, and discloses a low-power-consumption photovoltaic module heat dissipation structure which comprises a photovoltaic module and a supporting frame installed on the bottom face of the photovoltaic module, the middle end of the bottom face of a second chain wheel is connected with fan blades used for discharging airflow, and the edge of the bottom face of a heat conduction frame is connected with a trigger button. According to the low-power-consumption photovoltaic module heat dissipation structure, when a photovoltaic module works, dissipated heat is conducted to the top position of a heat conduction frame, gas in a cavity is expanded, then a piston rod connected to an outlet of the cavity is pushed to move outwards, and along with the outward movement of the piston rod, a rack at the highest position is pushed to move; pushing force is transmitted to other racks to drive gears to rotate, when the gears rotate, second chain wheels are driven to move synchronously, first chain wheels are driven to rotate through chains, when the first chain wheels rotate, fan blades are driven to rotate, hot air in gaps between heat conduction frames and heat dissipation fins is extracted outwards, and the heat dissipation efficiency is improved. And heat dissipation is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic modules, and specifically to a low-power photovoltaic module heat dissipation structure. Background Art

[0002] A photovoltaic module is a device that converts light energy into electrical energy. It usually consists of multiple solar cells, and by converting solar photons into the movement of electrons, direct current is generated. The main material of a photovoltaic module is silicon, including single-crystalline silicon, polycrystalline silicon, amorphous silicon, etc. Photovoltaic modules can be used in solar power generation systems. By combining and installing multiple photovoltaic modules, a photovoltaic array is formed to capture solar energy and generate electrical energy. Photovoltaic modules have the advantages of renewable energy, environmental protection, flexible installation, etc., and have been widely used and developed in recent years.

[0003] Currently, when existing photovoltaic modules form a photovoltaic array, there are usually gaps between adjacent photovoltaic modules for dissipating heat from the photovoltaic modules themselves. However, since photovoltaic modules work outdoors for a long time, internal components may age, resulting in the inability to timely discharge the heat generated by the photovoltaic modules through natural ventilation. At the same time, photovoltaic modules are usually arranged in places with sufficient sunlight. When working, the light radiation that is not absorbed in time will generate heat, making the overall environmental temperature relatively high, and natural ventilation for heat exchange cannot dissipate heat from the photovoltaic modules in a timely manner. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a low-power photovoltaic module heat dissipation structure, which has the advantages of actively dissipating heat from the photovoltaic module, etc., and solves the above technical problems.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A low-power photovoltaic module heat dissipation structure, comprising a photovoltaic module and a support frame installed on the bottom surface of the photovoltaic module. A plurality of heat dissipation fins are connected to the bottom surface of the photovoltaic module. The bottom ends of the heat dissipation fins are connected to a plurality of heat conduction frames for heat exchange. The top edge of the heat conduction frame is connected to a chamber. The output end of the chamber is connected to a piston rod. The chamber is used to drive the piston rod. The end of the piston rod is connected to a rack connected to the inner wall of one side of the heat conduction frame. There are a plurality of racks, and a connecting guide rod for connection is arranged between every two racks. A plurality of gears are installed on the bottom surface of the heat conduction frame. The middle end of the bottom surface of the gear is connected to a second sprocket. A plurality of groups of through slots are opened on the bottom surface of the heat conduction frame, and the bottom surface of the heat conduction frame in the central area of each through slot is connected to a first sprocket. The first sprocket is connected to the second sprocket through a chain. The middle end of the bottom surface of the second sprocket is connected to a fan blade for discharging air flow. A trigger button is connected to the bottom edge of the heat conduction frame.

[0008] As a preferred technical solution of the present invention, the heat conduction frame is fixedly installed on the bottom surface of the heat dissipation fin, and every two heat conduction frames are closely attached to each other. The heat conduction frame is made of a heat-conducting material and is in a "concave" shape.

[0009] As a preferred technical solution of the present invention, the chamber is hollow inside and filled with a thermosensitive gas. The outer surface of the chamber is fixedly installed at the highest point of the inclined surface of the heat conduction frame, and the outlet of the chamber is downward along the surface of the heat conduction frame. A piston rod that can be pushed by the thermosensitive gas inside the chamber is connected to the outlet of the chamber, and the piston rod is sealed at the outlet of the chamber.

[0010] As a preferred technical solution of the present invention, three racks are slidably connected to the concave edge of the heat conduction frame, a connecting guide rod is fixedly installed between the racks, and the racks are meshed with the gears.

[0011] As a preferred technical solution of the present invention, the middle end of the bottom surface of the gear is fixedly installed with a second sprocket, the outer end of the second sprocket is engaged with a chain, and the other end of the chain is engaged with the first sprocket.

[0012] As a preferred technical solution of the present invention, the diameter of the gear should ensure that its edge does not coincide with the through slots opened on the bottom surface of the heat conduction frame.

[0013] As a preferred technical solution of the present invention, the first sprocket is rotatably connected to the central part of the slot opened on the bottom surface of the heat conduction frame, and the number of the first sprockets is the same as the number of the through slots opened on the surface of the heat conduction frame.

[0014] As a preferred technical solution of the present invention, the number of gears is the same as the number of racks. The fan blade is fixedly installed at the middle end of the bottom surface of the first sprocket. The gears and the racks have the same thickness, and the bottom surfaces of the first sprocket and the second sprocket are in the same plane.

[0015] As a preferred technical solution of the present invention, it further includes a warning light fixedly installed on one side of the support frame. The warning light is electrically connected to the trigger button. A plurality of trigger buttons are provided and fixedly installed at the lowest position of the bottom surface of each heat conduction frame. The trigger button is on the stroke of the rack.

[0016] As a preferred technical solution of the present invention, a cover plate that completely covers the top surface of the heat dissipation fins is further connected to the top end of the heat dissipation fins.

[0017] Compared with the prior art, the present invention provides a low-power photovoltaic module heat dissipation structure, which has the following beneficial effects:

[0018] 1. When the photovoltaic module is working, the heat generated surges upward during heat dissipation, and then is conducted to the top position of the heat conduction frame, and then the heat is conducted into the chamber, so that the gas in the chamber expands, and then the piston rod connected at the chamber outlet is pushed to move outward. As the piston rod moves outward, it will push the rack at the highest position to move, and then push the connecting rod between the racks, and conduct the driving force to the other racks, so that a plurality of racks are linked to drive the gear to rotate. Since the second sprocket is fixedly installed at the middle end of the bottom surface of the gear, when the gear rotates, it will drive the second sprocket to move synchronously, thereby driving the chain to drive, and can drive the first sprocket to rotate. When the first sprocket rotates, it will drive the fan blade to rotate, and then extract the hot air in the gap between the heat conduction frame and the heat dissipation fins outward, thereby accelerating heat dissipation.

[0019] 2. When the rack contacts the trigger button, it indicates that the thermosensitive gas has expanded to the limit value, which means that there is a problem with the electronic components inside the photovoltaic module. At this time, the warning light on one side of the support frame lights up, reminding the maintenance staff to repair the photovoltaic module. At the same time, trigger buttons are provided on each heat conduction frame to ensure that the photovoltaic module can be monitored in time during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0021] Figure 2 It is a three-dimensional side structure schematic diagram of the present invention;

[0022] Figure 3 It is a three-dimensional bottom structure schematic diagram of the present invention;

[0023] Figure 4 It is a partial enlarged schematic diagram at position A of the structure of the present invention;

[0024] Figure 5 It is a bottom view schematic diagram of the structure of the present invention.

[0025] Wherein: 1. Photovoltaic module; 2. Support frame; 3. Warning light; 4. Heat dissipation fins; 5. Heat conduction frame; 6. Chamber; 7. Connecting guide rod; 8. First sprocket; 9. Fan blade; 10. Chain; 11. Gear; 12. Second sprocket; 13. Rack; 14. Piston rod; 15. Trigger button; 16. Cover plate. Specific implementation manner

[0026] The following further describes the implementation manner of the present invention in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "backend", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Please refer to Figures 1-5 , a low-power photovoltaic module heat dissipation structure, including a photovoltaic module 1 and a support frame 2 installed on the bottom surface of the photovoltaic module 1. A plurality of heat dissipation fins 4 are connected to the bottom surface of the photovoltaic module 1. The bottom ends of the heat dissipation fins 4 are connected to a plurality of heat conduction frames 5 for heat exchange. The top edge of the heat conduction frame 5 is connected to a chamber 6. The output end of the chamber 6 is connected to a piston rod 14. The chamber 6 is used to drive the piston rod 14. The end of the piston rod 14 is connected to a rack 13 connected to the inner wall of one side of the heat conduction frame 5. A plurality of racks 13 are provided, and a connecting guide rod 7 for connection is provided between every two racks 13. A plurality of gears 11 are installed on the bottom surface of the heat conduction frame 5. The middle end of the bottom surface of the gear 11 is connected to a second sprocket 12. A plurality of through grooves are opened on the bottom surface of the heat conduction frame 5, and the bottom surface of the heat conduction frame 5 in the central area of each through groove is connected to a first sprocket 8. The first sprocket 8 is connected to the second sprocket 12 through a chain 10. The middle end of the bottom surface of the second sprocket 12 is connected to a fan blade 9 for discharging air flow. A trigger button 15 is connected to the bottom edge of the heat conduction frame 5.

[0030] Furthermore, every two heat conduction frames 5 are closely attached to each other. The heat conduction frame 5 has good heat conductivity and can conduct the heat on the heat dissipation fins 4. The heat conduction frame 5 is in a "concave" shape, which can well prevent the dust generated by the side gas flow from adhering to the surface of the heat conduction frame 5.

[0031] Furthermore, the interior of the chamber 6 is hollow and filled with a thermosensitive gas. The chamber 6 is located at the highest point of the inclined surface of the heat conduction frame 5, and the outlet of the chamber 6 extends downward along the surface of the heat conduction frame 5. Under normal circumstances, the heat dissipated by the photovoltaic module 1 flows upward along the heat dissipation fins 4, and then converges at the cover plate 16 and gradually flows out from the through groove of the heat conduction frame 5. Therefore, a large amount of heat converges at the top position of the heat conduction frame 5, and then conducts the heat into the interior of the chamber 6, thereby expanding the gas inside the chamber 6, and then pushing the piston rod 14 connected to the outlet of the chamber 6. During the movement of the piston rod 14, it is necessary to ensure the seal at the outlet connected to the chamber 6.

[0032] Furthermore, three racks 13 are slidably connected to the concave edge of the heat conduction frame 5. The highest rack 13 is fixedly connected to the piston rod 14. After the piston rod 14 generates a driving force, it will push the rack 13 at the highest position to move, and then push the connecting rod 7 between the racks 13, and conduct the driving force to the remaining racks 13, so that multiple racks 13 are linked.

[0033] Furthermore, the rack 13 meshes with the gear 11. When the rack 13 slides, it will drive the gear 11 to rotate. Since the middle end of the bottom surface of the gear 11 is fixedly installed with a second sprocket 12, when the gear 11 rotates, it will drive the second sprocket 12 to move synchronously, thereby driving the chain 10 to transmit. Due to the transmission of the chain 10, it can drive the first sprocket 8 to rotate. When the first sprocket 8 rotates, it will drive the fan blade 9 to rotate, and then extract the hot air in the gap between the heat conduction frame 5 and the heat dissipation fins 4 outward, thereby accelerating heat dissipation.

[0034] Furthermore, when the gear 11 rotates, in order to prevent the gear 11 from blocking the gas flow in the through groove opened on the bottom surface of the heat conduction frame 5, the diameter of the gear 11 should be ensured so that its edge does not coincide with the through groove opened on the bottom surface of the heat conduction frame 5, thereby reducing the influence on the heat dissipation process. The bottom surfaces of the first sprocket 8 and the second sprocket 12 are in the same plane, which can ensure that the chain 10 is arranged along the inclination of the heat conduction frame 5, thereby ensuring the power transmission.

[0035] Further, a plurality of trigger buttons 15 are provided and fixedly installed at the lowest positions on the bottom surfaces of each heat conduction frame 5. The trigger buttons 15 are located on the stroke of the rack 13. When the rack 13 comes into contact with the trigger buttons 15, it indicates that the thermosensitive gas has expanded to the limit value, which means that there is a problem with the electronic components inside the photovoltaic module 1. At this time, the warning light 3 on one side of the support frame 2 lights up, reminding the maintenance staff to repair the photovoltaic module 1. At the same time, the provision of trigger buttons 15 on each heat conduction frame 5 can ensure the timely monitoring of the photovoltaic module 1 during operation.

[0036] Further, a cover plate 16 covering the top surface of the heat dissipation fins 4 can prevent dust from entering from the top.

[0037] During use, when the photovoltaic module 1 is operating and dissipating heat, the heat surges upward and is then conducted to the top position of the heat conduction frame 5, and then conducted into the chamber 6, thereby expanding the gas inside the chamber 6. Then, the piston rod 14 connected to the outlet of the chamber 6 is pushed to move outward. As the piston rod 14 moves outward, it will push the rack 13 at the highest position to move, and then push the connecting guide rod 7 between the racks 13, and conduct the driving force to the other racks 13, so that multiple racks 13 are linked, driving the gear 11 to rotate. Since the second sprocket 12 is fixedly installed at the middle end of the bottom surface of the gear 11, when the gear 11 rotates, it will drive the second sprocket 12 to move synchronously, thereby driving the chain 10 to transmit. Due to the transmission of the chain 10, it can drive the first sprocket 8 to rotate. When the first sprocket 8 rotates, it will drive the fan blade 9 to rotate, thereby exhausting the hot air in the gap between the heat conduction frame 5 and the heat dissipation fins 4 outward, accelerating the heat dissipation. As the heat is discharged, the thermosensitive gas contracts, driving the rack 13 to move in the reverse direction, thereby driving the gear 11 to rotate in the reverse direction, and then driving the fan blade to rotate in the opposite direction, introducing the external air flow between the heat dissipation fins 4 and discharging it from the bottom of the heat dissipation fins 4. When the rack 13 comes into contact with the trigger buttons 15, it indicates that the thermosensitive gas has expanded to the limit value, which means that there is a problem with the electronic components inside the photovoltaic module 1. At this time, the warning light 3 on one side of the support frame 2 lights up, reminding the maintenance staff to repair the photovoltaic module 1.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-power photovoltaic module heat dissipation structure, comprising a photovoltaic module (1) and a support frame (2) installed on the bottom surface of the photovoltaic module (1). A plurality of heat dissipation fins (4) are connected to the bottom surface of the photovoltaic module (1), and it is characterized in that: The bottom end of the heat dissipation fin (4) is connected with a plurality of heat conduction frames (5) for heat exchange. The top edge of the heat conduction frame (5) is connected with a chamber (6). The output end of the chamber (6) is connected with a piston rod (14). The chamber (6) is used to drive the piston rod (14). The end of the piston rod (14) is connected with a rack (13) connected to the inner wall of one side of the heat conduction frame (5). A plurality of racks (13) are provided, and a connecting guide rod (7) for connection is arranged between every two racks (13). A plurality of gears (11) are installed on the bottom surface of the heat conduction frame (5). The middle end of the bottom surface of the gear (11) is connected with a second sprocket (12). A plurality of groups of through slots are formed on the bottom surface of the heat conduction frame (5), and a first sprocket (8) is connected to the bottom surface of the heat conduction frame (5) in the central area of each through slot. The first sprocket (8) is connected with the second sprocket (12) through a chain (10). The middle end of the bottom surface of the second sprocket (12) is connected with a fan blade (9) for discharging air flow. A trigger button (15) is connected to the bottom edge of the heat conduction frame (5).

2. The heat dissipation structure of a low-power photovoltaic module according to claim 1, wherein: The heat conduction frame (5) is fixedly installed on the bottom surface of the heat dissipation fin (4), and every two heat conduction frames (5) are closely attached to each other. The heat conduction frame (5) is made of heat-conducting material, and the heat conduction frame (5) is in a "concave" shape.

3. A low-power photovoltaic module heat dissipation structure according to claim 1, characterized in that: The chamber (6) is hollow inside and filled with a thermosensitive gas. The outer surface of the chamber (6) is fixedly installed at the highest point of the inclined surface of the heat conduction frame (5), and the outlet of the chamber (6) is downward along the surface of the heat conduction frame (5). A piston rod (14) that can be pushed by the thermosensitive gas inside the chamber (6) is connected to the outlet of the chamber (6). The piston rod (14) is sealed with the outlet of the chamber (6).

4. A low-power photovoltaic module heat dissipation structure according to claim 2, characterized in that: Three racks (13) are slidably connected to the concave edge of the heat conduction frame (5). A connecting guide rod (7) is fixedly installed between the racks (13). The rack (13) meshes with the gear (11).

5. A low-power photovoltaic module heat dissipation structure according to claim 1, characterized in that: The middle end of the bottom surface of the gear (11) is fixedly installed with a second sprocket (12). The outer end of the second sprocket (12) meshes with a chain (10), and the other end of the chain (10) meshes with the first sprocket (8).

6. A low-power photovoltaic module heat dissipation structure according to claim 5, characterized in that: The diameter of the gear (11) should be ensured that its edge does not coincide with the through slots formed on the bottom surface of the heat conduction frame (5).

7. A low-power photovoltaic module heat dissipation structure according to claim 1, characterized in that: The first sprocket (8) is rotatably connected to the central part of the slot formed on the bottom surface of the heat conduction frame (5). The number of the first sprockets (8) is the same as the number of the through slots formed on the surface of the heat conduction frame (5).

8. A low-power photovoltaic module heat dissipation structure according to claim 1, characterized in that: The number of the gears (11) is the same as the number of the racks (13). The fan blade (9) is fixedly installed at the middle end of the bottom surface of the first sprocket (8). The gears (11) and the racks (13) have the same thickness. The bottom surfaces of the first sprocket (8) and the second sprocket (12) are in the same plane.

9. A low-power photovoltaic module heat dissipation structure according to claim 1, characterized in that: It further includes a warning light (3) fixedly installed on one side of the support frame (2). The warning light (3) is electrically connected to the trigger button (15). A plurality of trigger buttons (15) are provided and fixedly installed at the lowest position of the bottom surface of each heat conduction frame (5). The trigger button (15) is on the stroke of the rack (13).

10. A low-power photovoltaic module heat dissipation structure according to claim 1, characterized in that: The top of the heat dissipation fin (4) is also connected with a cover plate (16) that completely covers the top surface of the heat dissipation fin (4).

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