Protective device for photovoltaic energy storage battery

Abstract

The invention relates to a protective device for a photovoltaic energy storage battery, which belongs to the battery protection technology and comprises a protective base, a circulating pump arranged at the bottom of the protective base and a heat exchange tank arranged underground, a top cover is mounted at the top of the protective base, and a rotatable protective frame is slidably mounted between the top cover and the protective base. A plurality of staggered heat dissipation frames used for guiding out heat and generating power by wind are arranged on the side wall of the rotatable protection frame, and the staggered heat dissipation frames are located at the inner end and the outer end of the rotatable protection frame and communicate with the two telescopic guide pipes correspondingly; the rotatable protection frame is matched with the staggered heat dissipation frame, cooling liquid can be promoted to conduct primary heat dissipation on the ground surface, the cooling liquid is prevented from carrying too much heat to enter the ground, the temperature rising rate of underground soil is reduced, meanwhile, wind power generation can be conducted in cooperation with the power generation assembly under the condition that external wind power is large, and the power generation efficiency is improved. And the utilization rate of natural energy is improved while the protection effect is guaranteed, and the application value is high.

Description

Technical Field

[0001] This invention relates to the field of battery protection technology, and in particular to a protective device for photovoltaic energy storage batteries. Background Technology

[0002] Photovoltaic energy storage batteries are a key component of photovoltaic power generation systems. Their main function is to store the electrical energy generated by photovoltaic panels and release it during periods of insufficient sunlight or peak electricity demand to meet the load's electricity needs, improve the stability and reliability of photovoltaic power generation systems, and achieve self-consumption of electricity and surplus energy storage. Since photovoltaic systems are often installed in areas with high solar radiation intensity, and energy storage batteries cannot be directly exposed to such environments, they need to be protected. Conventional wind-cooling protection is not effective enough and cannot meet the heat dissipation requirements under high temperature and direct sunlight.

[0003] To address the aforementioned issues, Chinese invention patent CN119742498A discloses a protective device for photovoltaic energy storage batteries. It includes: a housing; a fan rotatably connected to the housing; a circulation pipe fixedly connected to the housing, with a spiral region on the circulation pipe; a rotating rod rotatably connected to the housing, with a connecting rope wound around the rotating rod; a liquid storage tank fixedly connected to the connecting rope, both the liquid storage tank and the circulation pipe being filled with a heat exchange medium, the liquid storage tank being in communication with the circulation pipe, and the liquid storage tank being located deep underground for heat exchange of the heat exchange medium within the liquid storage tank; and a power mechanism disposed within the housing.

[0004] It is understood that the technical solution of the above invention mainly absorbs underground cold sources through an underground storage tank, thereby transferring the cold source to the circulation pipe inside the shell to achieve the purpose of cooling the area inside the shell, thus ensuring the working temperature of the energy storage battery and extending the battery life. However, although the use of underground cold sources can effectively improve the heat dissipation effect, in practical applications, on the one hand, all the heat in the device enters the underground soil along with the return flow of the coolant, which may lead to a relatively fast rise in soil temperature, affecting the continuous cooling and protection effect to a certain extent. On the other hand, it is impossible to effectively utilize wind power. Although there are some protective devices that combine wind power generation technology, they are simply adding a wind power generation structure to the top of the device, which increases the production cost of the device and the functional integration effect is not good. In view of this, this application is made. Summary of the Invention

[0005] To overcome the technical defects of existing technologies, this invention provides a protective device for photovoltaic energy storage batteries, which has comprehensive protective effects and high energy utilization efficiency.

[0006] The technical solution adopted in this invention includes a protective base, a circulating pump installed at the bottom of the protective base, and a heat exchange tank placed underground. The pump's pumping end is connected to the heat exchange tank via an extraction pipe. The top of the protective base is equipped with several electrically driven telescopic conduits arranged in pairs. The inner telescopic conduits are connected to the pump's outlet, and the outer telescopic conduits are connected to the heat exchange tank via a return pipe. The heat exchange tank stores sufficient coolant. The top of the protective base is detachably secured by several mounting brackets. The device is equipped with a top cover, the bottom of which is fixedly fitted with a battery storage frame for storing photovoltaic energy storage batteries. Annular grooves are formed on the side of the top cover facing the protective base. A rotatable protective frame is slidably installed between the upper and lower annular grooves. Together with the protective base, the rotatable protective frame, and the top cover, a highly sealed battery storage space is formed. In actual use, the top cover is not initially connected to the protective base. First, the energy storage batteries are placed in the battery storage frame, then the rotatable protective frame is installed onto the protective base, and then the top cover is installed onto the rotatable protective frame. Finally, the battery is assembled... The mounting bracket secures the top cover to the protective base, allowing the rotatable protective frame to rotate between the top cover and the protective base. Several staggered heat dissipation racks for heat dissipation and wind power generation are evenly arrayed in a circular pattern on the side wall of the rotatable protective frame. These staggered heat dissipation racks are located at the inner and outer ends of the rotatable protective frame and are respectively connected to two telescopic conduits. This allows the coolant in the heat exchange tank to sequentially pass through the extraction pipe, the circulation pump, the inner telescopic conduit, the staggered heat dissipation racks, and the outer telescopic conduit, before returning to the heat exchanger through the return pipe. Inside the tank, the photovoltaic energy storage battery is placed in the battery storage frame. After the circulation pump is turned on, the coolant in the heat exchange tank is drawn in through the extraction pipe, and then transported to the staggered heat dissipation rack through the telescopic conduit. The heat is absorbed by the side of the staggered heat dissipation rack located inside the rotatable protective frame, and then the heat is discharged once through the side of the staggered heat dissipation rack located outside the rotatable protective frame to achieve initial cooling. Then the coolant is returned to the heat exchange tank through the return pipe for deep cooling. The re-cooled coolant is then drawn out by the circulation pump, thus forming a circulating cooling and protection structure.

[0007] A gear ring is provided on the top outer side of the rotatable protective frame, and a power generation component that meshes with the gear ring is fixedly installed at the bottom of the top cover for generating electricity when the rotatable protective frame rotates. When the telescopic conduit extends, the coolant in the heat exchange tank can be continuously fed into the staggered heat dissipation frame for heat removal. When the telescopic conduit retracts, the circulation pump shuts down simultaneously, so that the staggered heat dissipation frame and the rotatable protective frame are not restricted from rotation. At this time, the staggered heat dissipation frame can be driven to rotate by wind force for power generation by the power generation component. In addition to the initial surface heat dissipation of the coolant and the reduction of heat entering the soil, the structure design of the staggered heat dissipation frame can also be freed from the restriction of the telescopic conduit for wind power generation, reusing wind power. When used in conjunction with photovoltaic structures, it can further improve energy utilization. Moreover, the use of wind power does not conflict with the cooling and protection function of the battery. When the wind force is strong, the external ambient temperature is usually not too high, and due to the fast air flow speed, heat will not accumulate around the device. Combined with the thermally conductive materials of the rotatable protective frame and the staggered heat dissipation frame, a certain heat dissipation effect can still be maintained.

[0008] Preferably, the staggered heat dissipation frame consists of a hollow heat-conducting plate embedded in the rotatable protective frame and a plurality of arc-shaped heat dissipation fins arranged in an alternating manner on the side wall of the heat-conducting plate located outside the rotatable protective frame. The arc-shaped heat dissipation fins are used to dissipate heat while increasing the airflow area. The bottom of the heat-conducting plate located on the inner and outer sides of the rotatable protective frame is respectively connected to two telescopic conduits to form a coolant flow pipeline from the inside to the outside of the rotatable protective frame.

[0009] Preferably, the heat-conducting plate is provided with a hydraulic telescopic rod and an elastic retractable rod made of heat-conducting material on the side wall inside the rotatable protective frame. The hydraulic telescopic rod is connected to the inner cavity of the heat-conducting plate. The telescopic end of the elastic retractable rod is fixedly connected to the telescopic end of the hydraulic telescopic rod through an L-shaped support rod. The extension and retraction of the hydraulic telescopic rod is controlled by the hydraulic pressure of the coolant and the retraction force of the elastic retractable rod. When the hydraulic pressure of the coolant is greater than the retraction force of the elastic retractable rod, the hydraulic telescopic rod can extend to contact the battery in the battery storage frame. When the hydraulic pressure of the coolant is less than the retraction force of the elastic retractable rod, the hydraulic telescopic rod retracts and separates from the battery in the battery storage frame. The arc surfaces of the various arc-shaped heat sinks of the staggered heat sink are staggered, which effectively increases the heat dissipation area. Under the premise of fixed heat dissipation area, the expansion of the heat dissipation area can improve the heat dissipation effect to a certain extent, thereby helping to better reduce the heat carried by the coolant during the return flow.

[0010] Preferably, electrically controlled valves are provided in both the connection port between the heat-conducting plate and the telescopic conduit and in the telescopic conduit itself to prevent coolant leakage after the telescopic conduit is separated from the heat-conducting plate.

[0011] Preferably, a plurality of slidable wind baffles are slidably disposed between the protective base and the top cover. When the slidable wind baffles are separated, they are used to blow air onto the staggered heat dissipation frame. When the slidable wind baffles are combined, they can form a wind barrier on one side of the rotatable protective frame to prevent the staggered heat dissipation frame from being affected by wind on both sides at the same time and thus preventing the rotatable protective frame from rotating.

[0012] Preferably, the sliding wind baffle includes an arc-shaped baffle and two limiting slides at the upper and lower ends of the arc-shaped baffle. The arc-shaped baffle is slidably disposed in the top cover and the protective base respectively through the two limiting slides. Several blowers are provided in the arc-shaped baffle with the blowing direction facing the staggered heat dissipation frame. The blowers blow air to the staggered heat dissipation frame to dissipate heat and improve the heat dissipation efficiency.

[0013] Preferably, a fitting frame that can fit against the outer wall of the top cover is fixedly provided on one side of the top of the arc-shaped baffle. The fitting frame has an electromagnet built in it, and a magnetic component that can be attracted and fixed to the electromagnet is provided on the outer wall of the top cover. In actual use, each arc-shaped baffle is moved to a designated position according to the wind direction, and then the electromagnet is turned on to fix the fitting frame to the outer wall of the top cover, thereby fixing the entire sliding wind baffle.

[0014] Preferably, magnetic elements are provided on both the left and right side walls of the arc-shaped baffle for merging and connecting the various sliding wind baffles.

[0015] Preferably, the power generation component includes a generator fixed to the bottom of the top cover, a gear mounting shell provided at the bottom of the generator housing, and a drive gear disposed in the gear mounting shell. The shaft of the generator is fixedly connected to the drive gear, and the drive gear is meshed with a gear ring. When the rotatable protective frame rotates, the gear ring rotates synchronously to drive the drive gear to rotate, thereby realizing the power generation function using the generator.

[0016] Preferably, a dustproof ring is provided on the outer side of the top cover to shield the area above the gear ring.

[0017] The beneficial effects of this invention are: 1. This device uses a heat exchange tank to sequentially pass the coolant through an extraction pipe, a circulation pump, an inner telescopic conduit, a staggered heat dissipation frame, and an outer telescopic conduit before returning it to the heat exchange tank via a return pipe, forming a cooling path and achieving a good cooling and protection structure. Furthermore, the rotatable protective frame, combined with the staggered heat dissipation frame design, allows the coolant to dissipate heat at the ground surface first, preventing excessive heat from entering the ground and reducing the rate of soil temperature rise. Simultaneously, it can also be used with power generation components to generate wind power when there is strong wind. The wind power generation function does not conflict with the cooling and protection function, achieving an optimal multi-functional combination. This ensures the protective effect while improving the utilization rate of natural energy, demonstrating significant practical application value.

[0018] 2. In this device, the arc-shaped heat sinks of the staggered heat sink frame are distributed in an alternating manner, which not only increases the heat dissipation area and improves the heat dissipation effect to a certain extent, thus helping to better reduce the heat carried by the coolant during recirculation, but also allows for better airflow through the arc structure. Because the arc-shaped heat sinks are distributed in an alternating manner, the staggered heat sink frame can always keep the concave arc surface of some arc-shaped heat sinks facing the wind direction, regardless of which direction the wind is facing, thereby ensuring sufficient airflow and improving the efficiency of wind power generation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from a downward viewing angle; Figure 3 This is an exploded structural diagram of the protective base, top cover, and rotatable protective frame of the present invention; Figure 4 This is a schematic diagram of the protective base, top cover, and rotatable protective frame of the present invention from a bottom-view angle. Figure 5 This is a schematic diagram of the connection structure between the power generation component and the rotatable protective frame in this invention; Figure 6 This is a schematic diagram of the connection structure between the staggered heat sink and the telescopic conduit in this invention; Figure 7 This is a schematic diagram of the staggered heat sink structure in this invention; Figure 8 This is a schematic diagram of the sliding wind baffle plate in this invention; Figure 9 This is a schematic diagram showing the dispersed state of each sliding wind baffle plate in the present invention; Figure 10 This is a schematic diagram of the structure of the present invention with the sliding wind baffles combined.

[0020] Explanation of reference numerals in the attached drawings: 1. Protective base; 2. Top cover; 201. Battery storage frame; 3. Rotatable protective frame; 301. Gear ring; 4. Assembly frame; 5. Staggered heat dissipation frame; 501. Heat conduction plate; 502. Arc-shaped heat sink; 503. Hydraulic telescopic rod; 504. Elastic retractable rod; 6. Power generation component; 601. Generator; 602. Gear mounting shell; 603. Drive gear; 7. Telescopic duct; 8. Sliding wind baffle; 801. Arc-shaped baffle; 802. Blower fan; 803. Limiting slide; 804. Fitting frame; 9. Circulation pump; 10. Extraction pipe; 11. Heat exchange tank; 12. Return pipe; 13. Dustproof ring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-10As shown, this embodiment provides a protective device for photovoltaic energy storage batteries, including a protective base 1, a circulation pump 9 installed at the bottom of the protective base 1, and a heat exchange tank 11 placed underground. In practical applications, a deep pit is dug below the device, and the heat exchange tank 11 is placed underground, using the underground soil as a cooling source. The pumping end of the circulation pump 9 is connected to the heat exchange tank 11 through an extraction pipe 10. The top of the protective base 1 is provided with several electrically driven telescopic conduits 7 arranged in pairs. The telescopic conduits 7 located on the inner side are connected to the outlet end of the circulation pump 9, and the telescopic conduits 7 located on the outer side are connected to the return end of the circulation pump 9. The flow pipe 12 is connected to the heat exchange tank 11, which stores a sufficient amount of coolant. The coolant is drawn by the circulation pump 9, and efficient heat absorption protection is achieved through the circulation pipeline to prevent the environment around the photovoltaic energy storage battery stored in the device from overheating and causing it to malfunction, thus ensuring a better temperature protection effect. The top of the protective base 1 is detachably mounted with a top cover 2 by several assembly frames 4. The bottom of the top cover 2 is fixedly equipped with a battery storage frame 201 for storing photovoltaic energy storage batteries. The side of the top cover 2 facing the protective base 1 is provided with annular sliding grooves, and the upper and lower annular sliding grooves slide together. Equipped with a rotatable protective frame 3, the battery storage space is formed with a strong seal by the cooperation of the protective base 1, the rotatable protective frame 3, and the top cover 2. In actual use, the top cover 2 is not initially connected to the protective base 1. First, the energy storage battery is placed inside the battery storage frame 201, then the rotatable protective frame 3 is installed on the protective base 1, and then the top cover 2 is installed on the rotatable protective frame 3. Finally, the top cover 2 and the protective base 1 are fixed together by the assembly frame 4, allowing the rotatable protective frame 3 to rotate between the top cover 2 and the protective base 1. To reduce rotational resistance, the rotatable protective frame 3 can be rotated during actual application. A resistance-reducing structure is added at the connection between the protective frame 3 and the top cover 2 and the protective base 1, such as adding lubricating oil or adding a ball bearing structure. Several staggered heat dissipation racks 5 for heat conduction and wind power generation are evenly arranged in a circular array on the side wall of the rotatable protective frame 3. The staggered heat dissipation racks 5 are located at the inner and outer ends of the rotatable protective frame 3 and are respectively connected to two telescopic conduits 7, so that the coolant in the heat exchange tank 11 passes through the extraction pipe 10, the circulation pump 9, the telescopic conduit 7 located on the inner side, the staggered heat dissipation racks 5, and the telescopic conduit 7 located on the outer side, and then returns to the heat exchange tank 11 through the return pipe 12. In actual use, the photovoltaic energy storage battery is placed in the battery storage frame 201. After the circulation pump 9 is turned on, the coolant in the heat exchange tank 11 is drawn in through the extraction pipe 10 and then transported to the staggered heat dissipation rack 5 through the telescopic conduit 7. The heat is absorbed by the side of the staggered heat dissipation rack 5 located inside the rotatable protective frame 3, and then the heat is discharged once through the side of the staggered heat dissipation rack 5 located outside the rotatable protective frame 3 to achieve initial cooling. Then the coolant is returned to the heat exchange tank 11 through the return pipe 12 for deep cooling. The re-cooled coolant is then drawn out by the circulation pump 9, thus forming a circulating cooling and protection structure.

[0022] A gear ring 301 is provided on the top outer side of the rotatable protective frame 3. A power generation component 6 that meshes with the gear ring 301 is fixedly installed on the bottom of the top cover 2 for generating electricity when the rotatable protective frame 3 rotates. A dustproof ring 13 is provided on the outer side of the top cover 2 to shield the area above the gear ring 301. When the telescopic duct 7 extends, the coolant in the heat exchange tank 11 can be continuously fed into the staggered heat sink 5 for heat dissipation. When the telescopic duct 7 retracts, the circulation pump 9 is closed synchronously, so that the staggered heat sink 5 and the rotatable protective frame 3 are not restricted from rotation. At this time, the staggered heat sink 5 can drive the rotatable protective frame 3 to rotate under the wind force for generating electricity with the power generation component 6.

[0023] In actual use, the staggered heat sink 5, besides serving as a preliminary surface cooling system for the coolant and reducing heat loss into the soil, can also be used for wind power generation, freed from the limitations of the telescopic duct 7. Specifically, when the external wind is strong (wind detection can be achieved through wind sensors, and an additional intelligent controller can be added to intelligently adjust the usage mode according to the wind strength), the telescopic duct 7 is retracted, allowing the staggered heat sink 5 to move freely under wind conditions. This, in turn, rotates the rotatable protective frame 3, generating electricity using the power generation component 6 above, thus reusing wind power. Combined with a photovoltaic structure, this further improves energy efficiency. Furthermore, the utilization of wind power does not conflict with the battery's cooling and protection functions. Under strong winds, the external ambient temperature... The temperature is usually not too high, and due to the fast airflow, heat will not accumulate around the device. Combined with the thermally conductive materials of the rotatable protective frame 3 and the staggered heat dissipation rack 5, a certain heat dissipation effect can still be maintained. Compared with existing photovoltaic energy storage battery protection devices, this device, through the structural design of the rotatable protective frame 3 and the staggered heat dissipation rack 5, can promote the cooling liquid to dissipate heat on the ground surface first, preventing the cooling liquid from carrying too much heat into the ground and reducing the rate of temperature rise of the underground soil. On the other hand, when the external wind force is strong, it can also be used with the power generation component 6 to generate wind power. The function of wind power generation and the function of cooling protection do not conflict, achieving a better multi-functional combination. While ensuring the protection effect, it improves the utilization rate of natural energy and has better practical application value.

[0024] Specifically, such as Figure 7 As shown, the staggered heat sink 5 consists of a hollow heat-conducting plate 501 embedded in the rotatable protective frame 3 and several arc-shaped heat sinks 502 with their arc surfaces facing each other on the side wall of the heat-conducting plate 501 located outside the rotatable protective frame 3. The arc-shaped heat sinks 502 are used to dissipate heat while increasing the airflow area. The bottom of the heat-conducting plate 501 located on the inner and outer sides of the rotatable protective frame 3 is connected to two telescopic conduits 7 respectively, forming a coolant flow pipeline from the inside to the outside of the rotatable protective frame 3.

[0025] A heat-conducting plate 501 is located on the inner side wall of the rotatable protective frame 3, where a hydraulic telescopic rod 503 and an elastic retractable rod 504 made of heat-conducting material are installed. The hydraulic telescopic rod 503 is connected to the inner cavity of the heat-conducting plate 501. The telescopic end of the elastic retractable rod 504 is fixedly connected to the telescopic end of the hydraulic telescopic rod 503 via an L-shaped support rod. The extension and retraction of the hydraulic telescopic rod 503 are controlled by the hydraulic pressure of the coolant and the retraction force of the elastic retractable rod 504. When the hydraulic pressure of the coolant is greater than the retraction force of the elastic retractable rod 504, the hydraulic telescopic rod 503 can extend and contact the battery inside the battery storage frame 201. When the hydraulic pressure of the coolant is less than the retraction force of the elastic retractable rod 504, the hydraulic telescopic rod 503 retracts and separates from the battery inside the battery storage frame 201. This staggered arrangement... The arc-shaped heat sinks 502 of the heat sink bracket 5 are arranged in an alternating pattern. This design effectively increases the heat dissipation area. Under the premise of a fixed heat dissipation area, the expansion of the heat dissipation area can improve the heat dissipation effect to a certain extent, thereby helping to better reduce the heat carried by the coolant during the return flow. On the other hand, the arc-shaped structure design helps to better receive airflow. The wind resistance on the concave arc surface of the back side is slightly smaller, while the wind resistance on the front side is larger due to the concave area. However, because the arc-shaped heat sinks 502 are arranged in an alternating pattern, the alternating heat sink bracket 5 can always keep the concave arc surface of some arc-shaped heat sinks 502 facing the wind direction, regardless of which direction the wind is facing, thereby ensuring sufficient wind reception and improving the efficiency of wind power generation.

[0026] Electrically controlled valves are installed in the connection port between the heat-conducting plate 501 and the telescopic conduit 7, as well as inside the telescopic conduit 7, to prevent coolant leakage after the telescopic conduit 7 is separated from the heat-conducting plate 501. In actual use, in order to improve the intelligent alignment of the telescopic conduit 7 and the heat-conducting plate 501, a vision camera can be installed on the side of the telescopic conduit 7 to identify whether the two are aligned. After alignment, they can be docked. Alternatively, alignment can be controlled manually.

[0027] Specifically, such as Figure 8 As shown, several collapsible sliding wind baffles 8 are slidably arranged between the protective base 1 and the top cover 2. When the sliding wind baffles 8 are separated, they are used to blow air onto the staggered heat dissipation frame 5. When the sliding wind baffles 8 are collapsing, they can form a wind barrier on one side of the rotatable protective frame 3, preventing the staggered heat dissipation frame 5 from being blown by wind on both sides at the same time and thus preventing the rotatable protective frame 3 from rotating. When the wind force is small and the underground cold source is used as the main cooling and protection means, each sliding wind baffle 8 remains separated, forming a... Figure 9 In this state, air is forced from all directions toward the staggered heat dissipation rack 5 in the central area to promote heat dissipation. When the airflow is strong, the individual sliding baffles 8 can be combined to form a... Figure 10In this state, the sliding wind baffle 8 is adjusted to a position where the arc surface faces perpendicular to the wind direction, so that half of the staggered heat dissipation rack 5 is located inside the sliding wind baffle 8 and is not affected by the wind, while the other half is exposed to the outside and can be effectively blown by the wind, thereby driving the rotatable protective frame 3 to rotate, and realizing the power generation function using the power generation component 6.

[0028] The sliding baffle 8 includes an arc-shaped baffle 801 and two limiting slides 803 at the upper and lower ends of the arc-shaped baffle 801. The arc-shaped baffle 801 is slidably disposed in the top cover 2 and the protective base 1 respectively by the two limiting slides 803. Several blowers 802 with the blowing direction facing the staggered heat dissipation frame 5 are provided in the arc-shaped baffle 801. The blowers 802 blow air to the staggered heat dissipation frame 5 to improve heat dissipation efficiency. A fixed part on the top side of the arc-shaped baffle 801 is fixed to the top cover 2. The outer wall is fitted with a frame 804, which has an electromagnet built in it. The outer wall of the top cover 2 is provided with a magnetic component that can be attracted and fixed to the electromagnet. In actual use, each arc-shaped baffle 801 is moved to a designated position according to the wind direction. Then, the electromagnet is turned on to fix the frame 804 to the outer wall of the top cover 2, thereby fixing the entire sliding wind baffle 8. Magnetic components are provided on both the left and right side walls of the arc-shaped baffle 8 for connecting and merging the various sliding wind baffles 8.

[0029] Specifically, such as Figure 5 As shown, the power generation component 6 includes a generator 601 fixed to the bottom of the top cover 2, a gear mounting shell 602 provided at the bottom of the generator 601 housing, and a drive gear 603 provided in the gear mounting shell 602. The shaft of the generator 601 is fixedly connected to the drive gear 603, and the drive gear 603 is meshed with the gear ring 301. When the rotatable protective frame 3 rotates, the gear ring 301 rotates synchronously to drive the drive gear 603 to rotate, thereby realizing the power generation function using the generator 601.

[0030] The foregoing has shown and described the basic principles, main features and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from the spirit and scope of this invention. All such changes and modifications fall within the scope of this invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A protection device for photovoltaic energy storage battery, comprising a protection base (1), a circulating pump (9) arranged at the bottom of the protection base (1), and a heat exchange tank (11) arranged underground, the water suction end of the circulating pump (9) is communicated with the heat exchange tank (11) through a suction pipe (10), and the top of the protection base (1) is provided with a plurality of electrically driven telescopic pipes (7) arranged in pairs as a group, the inner telescopic pipe (7) is communicated with the water outlet end of the circulating pump (9), and the outer telescopic pipe (7) is communicated with the heat exchange tank (11) through a return pipe (12), characterized in that: The top of the protection base (1) is detachably mounted with a top cover (2) through several assembling frames (4), the bottom of the top cover (2) is fixedly provided with a battery storage frame (201) for photovoltaic energy storage battery, the side of the top cover (2) facing the protection base (1) is provided with an annular sliding groove, a rotatable protection frame (3) is slidably installed between the upper and lower annular sliding grooves, a plurality of staggered heat dissipation frames (5) for heat dissipation and wind power generation are uniformly arranged on the side wall of the rotatable protection frame (3) in a circumferential direction, the staggered heat dissipation frames (5) at the inner and outer ends of the rotatable protection frame (3) are communicated with two telescopic pipes (7) respectively, so that the cooling liquid in the heat exchange tank (11) passes through the extraction pipe (10), the circulating pump (9), the telescopic pipe (7) at the inner side, the staggered heat dissipation frame (5), the telescopic pipe (7) at the outer side in sequence and then returns to the heat exchange tank (11) through the return pipe (12); ​ The top outer side of the rotatable protection frame (3) is provided with a gear ring (301), the bottom of the top cover (2) is fixedly installed with a power generation assembly (6) engaged with the gear ring (301) for power generation when the rotatable protection frame (3) rotates, when the telescopic pipe (7) is extended, the cooling liquid in the heat exchange tank (11) can continuously flow into the staggered heat dissipation frame (5) for heat dissipation, when the telescopic pipe (7) is retracted, the circulating pump (9) is synchronously closed, so that the rotation of the staggered heat dissipation frame (5) and the rotatable protection frame (3) is not limited, at this time, the wind force borne by the staggered heat dissipation frame (5) can drive the rotatable protection frame (3) to rotate for power generation of the power generation assembly (6).

2. The protective device for photovoltaic energy storage cells according to claim 1, characterized in that: The staggered heat dissipation frame (5) is composed of a hollow heat conduction plate (501) embedded in the rotatable protection frame (3) and a plurality of arc-shaped heat dissipation fins (502) staggered arranged on the side wall of the heat conduction plate (501) at the outer side of the rotatable protection frame (3), the arc-shaped heat dissipation fins (502) are used for heat dissipation and increasing wind receiving area, the bottoms of the heat conduction plates (501) at the inner and outer sides of the rotatable protection frame (3) are communicated with two telescopic pipes (7) respectively, forming a cooling liquid flow pipeline from the inside of the rotatable protection frame (3) to the outside.

3. The protective device for photovoltaic energy storage cells according to claim 2, characterized in that: The heat-conducting plate (501) is provided with a hydraulic telescopic rod (503) and an elastic telescopic rod (504) made of heat-conductive material on the side wall inside the rotatable protection frame (3), the hydraulic telescopic rod (503) is in communication with the inner cavity of the heat-conducting plate (501), the telescopic end of the elastic telescopic rod (504) is fixedly connected with the telescopic end of the hydraulic telescopic rod (503) through an L-shaped support rod, the hydraulic telescopic rod (503) realizes telescopic control through the hydraulic pressure of the cooling liquid and the contraction force of the elastic telescopic rod (504), when the hydraulic pressure of the cooling liquid is greater than the contraction force of the elastic telescopic rod (504), the hydraulic telescopic rod (503) can be extended to contact the battery in the battery storage frame (201), when the hydraulic pressure of the cooling liquid is less than the contraction force of the elastic telescopic rod (504), the hydraulic telescopic rod (503) is retracted to separate from the battery in the battery storage frame (201).

4. The protective device for photovoltaic energy storage cells according to claim 3, characterized in that: The connecting port of the heat-conducting plate (501) and the telescopic conduit (7) and the telescopic conduit (7) are both provided with electrically controlled valves for preventing the cooling liquid from leaking after the telescopic conduit (7) and the heat-conducting plate (501) are separated.

5. The protective device for photovoltaic energy storage cells according to claim 1, characterized in that: A plurality of slidable wind-blocking plates (8) are further slidably arranged between the protection base (1) and the top cover (2), the slidable wind-blocking plates (8) are used to blow air to the staggered heat-dissipating frame (5) when separated, and the slidable wind-blocking plates (8) can form a wind-blocking barrier on one side of the rotatable protection frame (3) after being combined, preventing the staggered heat-dissipating frame (5) from being unable to drive the rotatable protection frame (3) to rotate due to wind on both sides at the same time.

6. The protective device for photovoltaic energy storage cells according to claim 5, characterized in that: The slidable wind-blocking plate (8) comprises an arc-shaped baffle (801) and two limiting sliding sheets (803) arranged at the upper and lower ends of the arc-shaped baffle (801), the arc-shaped baffle (801) is slidably arranged in the top cover (2) and the protection base (1) through the two limiting sliding sheets (803), and a plurality of air-blowing fans (802) are arranged in the arc-shaped baffle (801) and face the staggered heat-dissipating frame (5).

7. The protective device for photovoltaic energy storage cells according to claim 6, characterized in that: A matching frame (804) is fixedly arranged on one side of the top of the arc-shaped baffle (801) and can be attached to the outer wall of the top cover (2), an electromagnet is arranged in the matching frame (804), and a magnetic member is arranged on the outer wall of the top cover (2) and can be fixedly attached to the electromagnet.

8. The protective device for photovoltaic energy storage cells according to claim 7, characterized in that: Magnetic members are arranged on the left and right side walls of the arc-shaped baffle (801) and are used for combined connection of the slidable wind-blocking plates (8).

9. The protective device for photovoltaic energy storage cells according to claim 1, characterized in that: The power generation assembly (6) comprises a generator (601) fixed to the bottom of the top cover (2), a gear mounting shell (602) arranged at the bottom of the generator (601) shell, and a drive gear (603) arranged in the gear mounting shell (602), the shaft part of the generator (601) is fixedly connected with the drive gear (603), and the drive gear (603) is meshingly connected with the gear ring (301).

10. The protective device for photovoltaic energy storage cells according to claim 1, characterized in that: A dustproof ring (13) is arranged on the outer side of the top cover (2) and blocks the area above the gear ring (301).

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