A heat dissipation device for outdoor photovoltaic panels

Abstract

The utility model discloses a kind of heat sink for outdoor photovoltaic panel, belong to photovoltaic panel heat sink technical field, including photovoltaic panel mounting bracket, water-cooling fin heat sink is equipped in it;Heat-conducting strip, it is set on water-cooling fin heat sink upper end face, and is attached with photovoltaic panel back;Anti-clogging water collection filter box, it is used to filter and collect the water flowing from photovoltaic panel;Water supply mechanism, it is used to control the water flow in heat sink.The technical points are: when installing photovoltaic panel, its gravity load can extrude elastic batten in heat-conducting strip and make it deform, and then make the heat-conducting paste filled in it be compressed and deform and be attached with photovoltaic panel back closely, avoid appearing gap in heat-conducting path, ensure that device whole can efficiently radiate heat, and because anti-clogging water collection filter box is provided with deposition cavity, it can deposit small particulate matter filtered, so that it is not easy to adhere to fine filter screen surface, can effectively prevent fine filter screen from being blocked.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic panel heat dissipation devices, specifically a heat dissipation device for outdoor photovoltaic panels. Background Technology

[0002] When photovoltaic (PV) panels convert solar energy into electricity, some energy is lost as heat, leading to increased temperature. Excessive temperature severely impacts performance. On one hand, it reduces the conversion efficiency of PV cells, decreasing power generation; on the other hand, prolonged high temperatures accelerate the aging of PV panel materials, shortening their lifespan and increasing maintenance costs. Furthermore, high temperatures can also pose safety hazards, such as electrical faults. Therefore, effective heat dissipation measures are essential to ensure stable and efficient operation of PV panels, improve power generation efficiency, reduce long-term operating costs, and ensure the safe and reliable continuous operation of outdoor PV systems.

[0003] Utility model patent CN221961794U discloses a photovoltaic panel heat dissipation device. In this device, a photovoltaic panel main board is tilted and mounted on a photovoltaic panel main board support. A hot water pipe is arranged along the tilt direction of the main board on its back. Multiple hot water pipes are arranged along the width of the main board. A water storage tank is located below the main board. The lower end of each hot water pipe is connected to the water storage tank, and the upper end is connected to a water supply pipe. The other end of the water supply pipe is connected to the water storage tank and equipped with a water pump, which is electrically connected to a controller. A temperature sensor is embedded on the back of the main board and is electrically connected to the controller. This photovoltaic panel heat dissipation device can monitor the photovoltaic panel temperature in real time, control the heat dissipation, reduce the energy consumption of continuous heat dissipation, improve heat dissipation efficiency, and prevent damage to the photovoltaic panel due to excessive temperature.

[0004] While the aforementioned device can provide some heat dissipation for photovoltaic panels, it primarily relies on the flow of cooling water in the hot water pipe to remove heat. Since the hot water pipe typically has a circular or near-circular cross-section, the contact area between the pipe and the back of the photovoltaic panel is very limited. Furthermore, gaps can easily form between the photovoltaic panel and the hot water pipe during installation. These issues prevent the heat generated by the photovoltaic panel from being effectively transferred to the hot water pipe, resulting in a less than significant actual heat dissipation effect. Additionally, photovoltaic panels are usually installed outdoors. Although filter plates are installed in the water storage tank, their upward-facing arrangement makes them prone to clogging in outdoor environments, hindering the smooth flow of water into the storage tank. Therefore, to address these problems, a heat dissipation device for outdoor photovoltaic panels is proposed. Utility Model Content

[0005] To address the technical problems in comparative technologies, such as the ineffective transfer of heat generated by photovoltaic panels during use to the hot water pipes, resulting in insignificant heat dissipation effects of the heat dissipation device, and the easy clogging of the filter plates during use, this invention provides a heat dissipation device for outdoor photovoltaic panels.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A heat dissipation device for outdoor photovoltaic panels includes a photovoltaic panel mounting bracket on which a photovoltaic panel is mounted, and a water-cooled fin heat sink frame is provided therein. A spray pipe is installed on the top of the photovoltaic panel mounting bracket to spray cooling water onto the surface of the photovoltaic panel. A thermally conductive strip is disposed on the upper surface of the water-cooled fin heat sink frame to adhere to the back of the photovoltaic panel for heat conduction. An anti-clogging water collection and filter box is disposed at the bottom of the photovoltaic panel mounting bracket to filter and collect water flowing down from the photovoltaic panel. A water supply mechanism is used to control the water flow in the heat dissipation device. The thermally conductive strip includes symmetrically arranged elastic strips installed on the top of the water-cooled fin heat sink frame, filled with thermally conductive paste, and the ends of the elastic strips extend beyond the plane of the upper surface of the photovoltaic panel mounting bracket.

[0008] In one possible implementation, the anti-clogging water collection and filter box includes a box body with an upward-facing water inlet at the upper front end, a sedimentation chamber at the bottom of the water inlet, and a water collection chamber at the rear end of the box body that communicates with the sedimentation chamber.

[0009] In one possible implementation, a coarse filter screen arranged at an angle is installed at the bottom of the inlet, and a fine filter screen arranged at an angle is installed in the sedimentation chamber.

[0010] In one possible implementation, the water-cooled fin heat sink includes several arrayed fin strips, through which cooling pipes arranged in an S-shape are threaded. The bottom end of the cooling pipe is fixedly connected to a water inlet pipe, and the top end of the cooling pipe is fixedly connected to a water outlet pipe.

[0011] In one possible implementation, the fin strip includes a fin body, with an upper bonding piece and a lower bonding piece fixedly connected to its upper and lower ends, respectively, wherein the width of the upper bonding piece is greater than that of the lower bonding piece.

[0012] In one possible implementation, the photovoltaic panel mounting bracket includes two symmetrically arranged longitudinal support rods, each with a horizontal support rod fixedly connected to its upper and lower ends, and several connecting rods connecting the longitudinal support rods. A support frame is fixedly connected to the longitudinal support rods, wherein, when installing the water-cooled fin heat dissipation bracket, the lower bonding piece overlaps on the connecting rod.

[0013] In one possible implementation, the water supply mechanism includes a water tank and a cooling water circulation pump. A return water port is provided on the side of the water tank. The inlet of the cooling water circulation pump is connected to the water tank through a water pipe, and the outlet of the cooling water circulation pump is connected to the inlet pipe in a sealed manner through a water pipe. The outlet pipe is connected to the water tank through a water pipe.

[0014] In one possible implementation, the water supply mechanism further includes a water pump and a spray pump, wherein the water pump's inlet is connected to the water collection chamber via a water pipe, and its outlet is connected to the water tank via a water pipe; the spray pump's inlet is connected to the water tank via a water pipe, and its outlet is connected to the spray pipe via a water pipe.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] The heat generated by the photovoltaic panel is conducted and dissipated through a water-cooled finned heat dissipation frame. Specifically, the fins adhere to the back of the photovoltaic panel, thus dissipating heat. The cooling pipes running through the fins carry away the heat with circulating cooling water, achieving a heat dissipation effect. In particular, to ensure a tight fit between the fins and the back of the photovoltaic panel and to avoid gaps that would affect the heat conduction effect, a thermally conductive strip is provided on the top of the fins. When the photovoltaic panel is installed, its weight will compress the elastic strips in the thermally conductive strip, causing them to deform. This, in turn, causes the thermally conductive paste filled in it to deform under pressure and fit tightly against the back of the photovoltaic panel, avoiding gaps in the heat conduction path and ensuring that the entire device can dissipate heat efficiently.

[0017] In addition, the anti-clogging water collection and filter box in the device is equipped with a coarse filter and a fine filter. The coarse filter is used to filter larger debris, while the fine filter is used to filter small particles. Since the debris filtered by the coarse filter is larger in size, there will be larger gaps between the debris, which will not obstruct the flow of water. Furthermore, since the anti-clogging water collection and filter box is equipped with a sedimentation chamber, it can deposit the filtered small particles, making them less likely to adhere to the surface of the fine filter, thus effectively preventing the fine filter from being clogged. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the thermal conductive strip structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the water-cooled fin heat sink structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the anti-clogging water collection and filter box structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the water supply mechanism of this utility model.

[0025] In the diagram: 1. Photovoltaic panel mounting bracket; 11. Longitudinal support rod; 12. Horizontal support rod; 13. Connecting rod; 14. Support frame; 2. Water-cooled fin heat dissipation frame; 21. Fin strip; 211. Fin body; 212. Upper bonding plate; 213. Lower bonding plate; 22. Cooling pipe; 23. Water inlet pipe; 24. Water outlet pipe; 3. Thermal conductive strip; 31. Elastic strip; 32. Thermal paste; 4. Anti-clogging water collection and filter box; 41. Box body; 42. Water inlet; 43. Sedimentation chamber; 44. Water collection chamber; 45. Coarse filter screen; 46. Fine filter screen; 5. Spray pipe; 6. Water supply mechanism; 61. Water tank; 62. Cooling water circulation pump; 63. Water return port; 64. Water pump; 65. Spray water pump. Detailed Implementation

[0026] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0027] like Figure 1 - Figure 2 As shown in the figure, this embodiment provides a heat dissipation device for outdoor photovoltaic panels, including a photovoltaic panel mounting bracket 1 on which a photovoltaic panel is mounted, and a water-cooled fin heat dissipation frame 2 therein. A spray pipe 5 is installed on the top of the photovoltaic panel mounting bracket 1 to spray cooling water onto the surface of the photovoltaic panel; a thermally conductive strip 3 is disposed on the upper surface of the water-cooled fin heat dissipation frame 2 to adhere to the back of the photovoltaic panel for heat conduction; an anti-clogging water collection and filter box 4 is disposed at the bottom of the photovoltaic panel mounting bracket 1 to filter and collect water flowing down from the photovoltaic panel; and a water supply mechanism 6 to control the water flow in the heat dissipation device.

[0028] Based on the above structural scheme, the heat generated by the photovoltaic panel is discharged and dissipated through the water-cooled fin heat dissipation frame 2. At the same time, cooling water can be sprayed onto the surface of the photovoltaic panel through the spray pipe 5, thereby cooling the surface of the photovoltaic panel. The anti-clogging water collection and filter box 4 can be used to recycle the sprayed water or collect rainwater to replenish the water stored in the water supply mechanism 6.

[0029] Among them, such as Figure 4As shown, the water-cooled fin heat sink 2 includes several arrayed fin strips 21, through which cooling pipes 22 are arranged in an S-shape. The bottom end of the cooling pipe 22 is fixedly connected to a water inlet pipe 23, and the top end of the cooling pipe 22 is fixedly connected to a water outlet pipe 24. By adhering the fin strips 21 to the back of the photovoltaic panel, heat is dissipated, while the cooling pipes 22 passing through the fin strips 21 can carry away heat through the circulating cooling water, thus achieving a heat dissipation effect.

[0030] For fin strip 21, such as Figure 3 As shown, it includes a fin body 211, with an upper bonding piece 212 and a lower bonding piece 213 fixedly connected to its upper and lower ends, respectively. The upper bonding piece 212 is wider than the lower bonding piece 213. Based on the above structural scheme, the wider upper bonding piece 212 can increase the contact area between the fin strip 21 and the back of the photovoltaic panel, thereby better dissipating heat. The narrower lower bonding piece 213 can expand the gap at the bottom of the entire water-cooled fin heat dissipation frame 2, which can reduce the obstruction to airflow and allow the airflow to carry away more heat.

[0031] To ensure a tight fit between the fin strip 21 and the back of the photovoltaic panel, preventing gaps that could affect heat conduction, a thermally conductive strip 3 is provided on the top of the fin strip 21. Figure 3 As shown, the thermal conductive strip 3 includes symmetrically arranged elastic strips 31 installed on the top of the water-cooled fin heat sink 2, which are filled with thermal conductive paste 32. The ends of the elastic strips 31 extend out of the plane of the upper surface of the photovoltaic panel mounting bracket 1. When the photovoltaic panel is installed, its gravity load will squeeze the elastic strips 31 in the thermal conductive strip 3 to deform it, thereby causing the thermal conductive paste 32 filled in it to be compressed and deformed and tightly adhered to the back of the photovoltaic panel, avoiding gaps in the heat conduction path and ensuring that the whole device can dissipate heat efficiently.

[0032] like Figure 5 As shown, the anti-clogging water collection and filter box 4 includes a box body 41, with an upward-facing water inlet 42 at the upper front end. A sedimentation chamber 43 is connected to the bottom of the water inlet 42, and a water collection chamber 44 connected to the sedimentation chamber 43 is opened at the rear end of the box body 41. In conjunction with this, a coarse filter screen 45 is installed at the bottom of the water inlet 42, and a fine filter screen 46 is installed in the sedimentation chamber 43. The coarse filter screen 45 is used to filter larger debris, while the fine filter screen 46 is used to filter small particles. Since the debris filtered by the coarse filter screen 45 is relatively large, there will be large gaps between the debris, which will not obstruct the flow of water. In addition, since the anti-clogging water collection and filter box 4 is provided with a sedimentation chamber 43, it can deposit the filtered small particles, making them less likely to adhere to the surface of the fine filter screen 46, thus effectively preventing the fine filter screen 46 from being clogged.

[0033] like Figure 2As shown, the photovoltaic panel mounting bracket 1 includes two symmetrically arranged longitudinal support rods 11, with horizontal support rods 12 fixedly connected to both ends of each rod. Several connecting rods 13 connect the longitudinal support rods 11, and a support frame 14 is fixedly connected to the longitudinal support rods 11. When installing the water-cooled fin heat sink 2, the lower bonding piece 213 overlaps the connecting rod 13. Based on the above structural scheme, the photovoltaic panel mounting bracket 1 can be ensured to form a stable support structure for installing the photovoltaic panel and the water-cooled fin heat sink 2, and can provide stable support for both.

[0034] like Figure 6 As shown, the water supply mechanism 6 includes a water tank 61 and a cooling water circulation pump 62. The water tank 61 has a return water port 63 on its side. The inlet of the cooling water circulation pump 62 is connected to the water tank 61 through a water pipe, and the outlet of the cooling water circulation pump 62 is connected to the inlet pipe 23 in a sealed manner through a water pipe. The outlet pipe 24 is connected to the water tank 61 through a water pipe. Based on the above scheme, the cooling water circulation pump 62 can draw water out of the water tank 61 and deliver it to the cooling pipe 22 through the inlet pipe 23. The heat is carried away by the flow of water. Then the circulating cooling water flows back to the water tank 61 through the outlet pipe 24 to complete the circulation.

[0035] The water supply mechanism 6 also includes a water pump 64 and a spray pump 65. The water pump 64 has its inlet end connected to the water collection chamber 44 through a water pipe and its outlet end connected to the water tank 61 through a water pipe. The spray pump 65 has its inlet end connected to the water tank 61 through a water pipe and its outlet end connected to the spray pipe 5 through a water pipe. Based on the above scheme, the water pump 64 can extract water from the filtered water collection chamber 44 and store it in the water tank 61 to replenish water. The spray pump 65 can extract water from the water tank 61 and deliver it to the spray pipe 5 so that the sprayed water can cool the surface of the photovoltaic panel.

[0036] The working principle and usage process of this utility model:

[0037] During photovoltaic panel installation, the weight of the panel compresses the elastic strips 31 in the thermal conductive strip 3, causing them to deform. This causes the thermal conductive paste 32 filled in the strips to deform under pressure and fit tightly against the back of the photovoltaic panel, preventing gaps in the heat conduction path and ensuring efficient heat dissipation of the entire device. During water cooling, the fin strips 21 adhere to the back of the photovoltaic panel, dissipating heat. The cooling pipes 22 running through the fin strips 21 carry away heat through the circulating cooling water, achieving a heat dissipation effect.

[0038] During the above process, the cooling water circulation pump 62 can draw water from the water tank 61 and deliver it to the cooling pipe 22 through the water inlet pipe 23. The water flow carries away the heat, and then the circulating cooling water flows back to the water tank 61 through the water outlet pipe 24 to complete the circulation.

[0039] In the anti-clogging water collection and filter box 4, the coarse filter screen 45 is used to filter larger debris, while the fine filter screen 46 is used to filter small particles. Since the debris filtered by the coarse filter screen 45 is relatively large, there will be large gaps between the debris, which will not hinder the flow of water. In addition, since the anti-clogging water collection and filter box 4 is equipped with a sedimentation chamber 43, it can deposit the filtered small particles, making them less likely to adhere to the surface of the fine filter screen 46, which can effectively prevent the fine filter screen 46 from being clogged. The water pump 64 can pump the water from the filtered water collection chamber 44 and store it in the water tank 61 to replenish the water.

[0040] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A heat dissipation device for outdoor photovoltaic panels, characterized in that, include: A photovoltaic panel mounting bracket (1) is provided with a photovoltaic panel and a water-cooled fin heat dissipation bracket (2). A spray pipe (5) is installed on the top of the photovoltaic panel mounting bracket (1) for spraying cooling water onto the surface of the photovoltaic panel. Thermal conductive strip (3) is set on the upper surface of the water-cooled fin heat sink (2) to adhere to the back of the photovoltaic panel for heat conduction; The anti-clogging water collection and filter box (4) is set at the bottom of the photovoltaic panel mounting bracket (1) to filter and collect water flowing down from the photovoltaic panel; Water supply mechanism (6), which is used to control the water flow in the heat dissipation device; The thermal conductive strip (3) includes symmetrically arranged elastic strips (31) installed on the top of the water-cooled fin heat sink (2), which are filled with thermal conductive paste (32), and the ends of the elastic strips (31) extend out of the plane of the upper surface of the photovoltaic panel mounting bracket (1).

2. The heat dissipation device for outdoor photovoltaic panels according to claim 1, characterized in that: The anti-clogging water collection and filter box (4) includes a box body (41), with an upward-facing water inlet (42) at the upper front end, a sedimentation chamber (43) at the bottom of the water inlet (42), and a water collection chamber (44) connected to the sedimentation chamber (43) at the rear end of the box body (41).

3. A heat dissipation device for outdoor photovoltaic panels according to claim 2, characterized in that: A coarse filter screen (45) arranged at an angle is installed at the bottom of the inlet (42), and a fine filter screen (46) arranged at an angle is installed in the sedimentation chamber (43).

4. A heat dissipation device for outdoor photovoltaic panels according to claim 1, characterized in that: The water-cooled fin heat sink (2) includes several arrayed fin strips (21), through which cooling pipes (22) arranged in an S-shape are inserted. The bottom end of the cooling pipe (22) is fixedly connected to a water inlet pipe (23), and the top end of the cooling pipe (22) is fixedly connected to a water outlet pipe (24).

5. A heat dissipation device for outdoor photovoltaic panels according to claim 4, characterized in that: The fin strip (21) includes a fin body (211), with an upper bonding piece (212) and a lower bonding piece (213) fixedly connected to its upper and lower ends respectively. The width of the upper bonding piece (212) is greater than that of the lower bonding piece (213).

6. A heat dissipation device for outdoor photovoltaic panels according to claim 5, characterized in that: The photovoltaic panel mounting bracket (1) includes two symmetrically arranged longitudinal support rods (11), both of which are fixedly connected to horizontal support rods (12). Several connecting rods (13) are connected between the longitudinal support rods (11). A support frame (14) is fixedly connected to the longitudinal support rods (11). When installing the water-cooled fin heat sink bracket (2), the lower bonding piece (213) overlaps on the connecting rod (13).

7. A heat dissipation device for outdoor photovoltaic panels according to claim 4, characterized in that: The water supply mechanism (6) includes a water tank (61) and a cooling water circulation pump (62). A return water port (63) is provided on the side of the water tank (61). The water inlet of the cooling water circulation pump (62) is connected to the water tank (61) through a water pipe, and the water outlet of the cooling water circulation pump (62) is connected to the water inlet pipe (23) in a sealed manner through a water pipe. The water outlet pipe (24) is connected to the water tank (61) through a water pipe.

8. A heat dissipation device for outdoor photovoltaic panels according to claim 2, characterized in that: The water supply mechanism (6) also includes a water pump (64) and a spray pump (65). The water pump (64) has its inlet end connected to the water collection chamber (44) through a water pipe and its outlet end connected to the water tank (61) through a water pipe. The spray pump (65) has its inlet end connected to the water tank (61) through a water pipe and its outlet end connected to the spray pipe (5) through a water pipe.

Images