Outdoor energy storage device for photovoltaic power station

Abstract

The invention discloses an outdoor energy storage device for a photovoltaic power station, which relates to the technical field of outdoor energy storage devices and comprises an outdoor power supply and an overload protection mechanism which is arranged on one side of the inner wall of the outdoor power supply and is used for providing a protection function for equipment when the internal temperature of the equipment is too high. The outdoor energy storage device for the photovoltaic power station further comprises a rainwater triggering mechanism which is arranged at the top of the overload protection mechanism and used for automatically triggering the overload protection mechanism to provide protection for equipment in rainy days. Through an overload protection mechanism and a rainwater triggering mechanism, the equipment can be prevented from being damaged due to overhigh internal temperature and wet water inflow in rainy days during outdoor operation, so that the safety performance of the equipment is improved, the equipment can better adapt to the temperature change of the external environment, the service life of the equipment is further prolonged, and the practicability is high. And the stability and the universality of the equipment are improved, and potential safety hazards are reduced for users and nearby people.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor energy storage devices, and in particular to an outdoor energy storage device for photovoltaic power stations. Background Art

[0002] An outdoor energy storage device used in a photovoltaic power station is a portable device that integrates solar power generation and energy storage. It converts sunlight into electricity through solar panels and stores it in batteries, meeting outdoor power needs. Combining the dual features of mobile charging and solar energy replenishment, it is particularly suitable for scenarios without a fixed power source, such as camping, hiking, and field work. By combining portable energy storage with renewable energy, users can still obtain stable power even when off the grid. It is both a convenient tool for outdoor life and an energy guarantee for emergency situations.

[0003] For example, publication number CN117080608A discloses an outdoor energy storage device suitable for low-temperature environments, including a shell and a battery and an inverter arranged in the shell, characterized in that: an inner cavity is provided in the shell, and a heat-insulating layer is provided in the inner cavity to divide the inner cavity into a battery compartment and an inverter compartment, the bottom opening of the inner cavity is closed by a base that can conduct heat, the inverter is installed in the inverter compartment and is in contact with the base through a heat sink, the battery compartment is equipped with batteries, and phase-change heat-dissipating materials are filled between the batteries, between the batteries and the shell, and between the batteries and the base, and the base is in contact with the phase-change heat-dissipating material to achieve heat conduction. This structure ensures that the outdoor energy storage device can be used in low-temperature environments, solving the pain points of using the outdoor energy storage device in low-temperature environments such as overnight stays in high-altitude mountainous areas and high-altitude snow-capped mountains.

[0004] 1. During actual use, outdoor energy storage devices experience fluctuating outdoor temperatures, particularly in summer, which can reach over 40°C. This causes the internal batteries and power conversion modules to generate significant heat during sustained high-power discharge or prolonged solar charging. If heat dissipation is not promptly managed, internal temperatures can exceed 60°C. Existing overload protection for most outdoor power supplies focuses primarily on conventional electrical faults such as overvoltage, overcurrent, and short circuits, lacking effective mechanisms to address overload risks in high-temperature environments. When the internal temperature of the device is excessively high, the chemical activity of the energy storage batteries deteriorates, easily leading to thermal runaway. The performance of the power conversion components can also significantly degrade, causing circuit parameter deviations and even device burnout. A high-temperature overload not only significantly shortens the lifespan of the outdoor power supply but can also cause safety hazards such as battery bulging and fire, posing a serious threat to user safety and property. Furthermore, traditional heat dissipation methods, which primarily rely on air cooling, are limited in effectiveness in extremely high temperatures and cannot quickly reduce the internal temperature, making it difficult to fundamentally prevent high-temperature overloads.

[0005] 2. The outdoor environment is often subject to change, especially when the device is operating outdoors in the rain. This can cause the device to be exposed to rainwater. Even if current devices have a certain degree of waterproofing, they are still difficult to withstand in practice due to prolonged rainfall, heavy rain, or accidental immersion. Rainwater seeping into the power supply can cause circuit shorts, component corrosion, and ultimately device failure. Rainwater can contact the metal traces on the circuit board, damaging the insulation layer and causing short circuits between traces, rendering the power supply inoperative. Rainwater intrusion into areas like the battery connector and charging port can accelerate oxidation of the metal contacts, shortening battery life and potentially causing serious safety hazards such as leakage and fire.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the existing outdoor energy storage device of photovoltaic power station. Summary of the Invention

[0007] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too simple, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide an outdoor energy storage device for photovoltaic power stations to solve the problem raised in the above background technology that the equipment is easily damaged when the outdoor temperature is high or on rainy days.

[0008] To achieve the above objectives, the present invention provides the following technical solutions: an outdoor energy storage device for a photovoltaic power station, comprising an outdoor power supply, an overload protection mechanism disposed on an inner wall of the outdoor power supply for protecting the device when the internal temperature of the device is too high, and a rain triggering mechanism disposed on top of the overload protection mechanism for automatically triggering the overload protection mechanism to protect the device when it rains. The overload protection mechanism includes an outer shell mounted on the top of the inner wall of the outdoor power supply, an inner shell is provided on the inner wall of the outer shell, a limit clamping rod is installed on the top of the inner shell, a connecting block is provided at one end of the limit clamping rod, and a trigger ball is movably provided on the inner wall of the connecting block; The rainwater triggering mechanism includes a pressure block movably mounted on the top of the trigger ball, an offset connecting rod movably mounted on the outer wall of the pressure block, one end of the offset connecting rod is connected to a movable connecting rod, and the outer wall of the movable connecting rod is provided with a connecting slot.

[0009] Preferably, the outer wall of the trigger ball is connected to a reset rod, a push switch is provided at the bottom of the inner wall of the outer shell, a battery is provided at the bottom of the push switch, a heat dissipation port is provided on one side of the outer shell, and an air outlet is connected to the outside of the heat dissipation port.

[0010] Preferably, one end of the pressing block is connected to a telescopic rod, a spring is arranged around the outer wall of the telescopic rod, one end of the telescopic rod is connected to a receiving bin, a water pipe is installed on the top of the receiving bin, one end of the water pipe is provided with a water collecting tray, a drain pipe is provided on one side of the outer wall of the receiving bin, and a connecting telescopic rod is installed on the outer wall of the water pipe; When the temperature of the battery pack inside the energy storage device is ≥55℃, it is considered to be too high, and when the temperature is ≥65℃, it is a dangerous critical value, which may cause thermal runaway of the battery, smoking, and fire, and the power must be cut off and the device must be shut down immediately.

[0011] Preferably, the limiting clamping rods are movably connected via a rotating shaft, the limiting clamping rods are made of metal, and the connecting blocks are connected to both ends of the limiting clamping rods; The limit clamp rod is made of copper and will produce thermal expansion effect due to high temperature, thereby making the inner diameter of the limit clamp rod larger. The inner diameter of the limit clamp rod will increase because the copper ring is a structure composed of countless concentric thin sheets. When heated, each thin sheet will expand due to the increase in atomic distance, and each layer of thin sheets will grow outward, just like the annual rings of trees will become wider every year. For the inner circle of the copper ring, it will also expand outward due to the expansion of atoms, so the inner diameter of the entire copper ring will naturally increase. In other words, the copper ring expands as a whole when heated, rather than just the outer circle, so the inner diameter will also increase with the overall expansion, rather than decrease.

[0012] Preferably, the three-dimensional view of the connecting block is a cuboid, and the material of the connecting block is an elastic material; The connecting block is made of silicone rubber, which has excellent high and low temperature resistance. The operating temperature range can reach -60℃-250℃. It can still maintain good elasticity and flexibility in high temperature environment, so that the connecting block has the function of deformation and reset.

[0013] Preferably, the outer wall of the movable connecting rod is connected to the outer wall of the limiting clamp rod, and the movable connecting rod is adapted to the connecting sliding groove.

[0014] Preferably, one end of the offset connecting rod is movably connected to the outer wall of the pressing block, and the other end of the offset connecting rod is movably connected to one end of the movable connecting rod.

[0015] Preferably, outer walls of the outer shell and the inner shell are both provided with sliding grooves, and the diameters of the sliding grooves of the outer shell and the inner shell are adapted to the diameter of the reset rod.

[0016] The push switch is aligned with the bottom of the trigger ball, and the push switch is electrically connected to the battery through an electrical signal.

[0017] Slide blocks and sliding grooves are provided on both sides of the receiving bin and are adapted to each other, and the bottom of the outer wall of the receiving bin is connected to one end of the telescopic rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes an overload protection mechanism to prevent damage to the device caused by internal overheating when the device is running outdoors. When the temperature inside the device is too high, the limit clamp rod expands due to heat, causing the inner diameter to enlarge. After the trigger ball disengages from the limit, the switch is pressed to cut off the power supply of the battery. After the temperature drops, the trigger ball is reset by pulling the reset rod to restart the device, thereby avoiding the possible failure of electronic components inside the device due to high temperature, resulting in power-off delays, and also avoiding the risk of damage or even explosion caused by overheating of the device, thereby improving the safety performance of the device, being able to better adapt to changes in the temperature of the external environment, further increasing the life of the device, and also improving the stability and versatility of the device, and reducing safety hazards for users and nearby people.

[0019] 2. The present invention utilizes an overload protection mechanism and a rain trigger mechanism to enable the device to automatically cut off the power supply on rainy days to prevent damage to the device. Water entering the device on rainy days may cause a circuit short circuit, indirectly leading to local overheating of the battery and triggering thermal runaway. The rain trigger mechanism and the overload protection mechanism enable the device to automatically cut off the power supply on rainy days, thereby preventing the device from short circuiting and overheating during operation on rainy days, further improving the versatility and applicability of the device, increasing the service life of the device, and reducing maintenance and manufacturing costs for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0021] Figure 2 This is a schematic diagram of the installation position structure of the overload protection mechanism of the present invention.

[0022] Figure 3 This is a schematic diagram of the position structure of the overload protection mechanism and the rain triggering mechanism of the present invention.

[0023] Figure 4 It is a schematic diagram of the connection structure between the overload protection mechanism and the rain triggering mechanism of the present invention.

[0024] Figure 5 Schematic diagram of the structure of the overload protection mechanism of the present invention; Figure 6 This is a schematic diagram of the position structure of the air outlet pipe and the trigger ball of the present invention; Figure 7 This is a schematic structural diagram of the trigger ball and the limiting clamping rod of the present invention; Figure 8It is a structural schematic diagram of the limiting clamp rod and the heating block of the present invention; Figure 9 This is a schematic structural diagram of the rainwater triggering mechanism of the present invention; Figure 10 This is a schematic structural diagram of the offset connecting rod and the movable connecting rod of the present invention; Figure 11 This is a bottom view of the structure of the offset connecting rod, the movable connecting rod and the connecting chute of the present invention; Figure 12 It is a structural schematic diagram of the movable connecting rod, connecting slide groove and limiting clamping rod of the present invention; Figure 13 This is a schematic diagram of the connection structure between the push switch and the battery of the present invention; Figure 14 For the present invention Figure 2 A is a schematic diagram of the partially enlarged structure of the marked area; Figure 15 This is a schematic structural diagram of the heat dissipation port and the air outlet pipe of the present invention; Figure 16 It is a schematic diagram of the connection structure between the heating block and the reset rod of the present invention.

[0025] In the figure: 1. Outdoor power supply; 2. Overload protection mechanism; 201. Outer shell; 202. Inner shell; 203. Limit clamp rod; 204. Connecting block; 205. Trigger ball; 206. Reset rod; 207. Press switch; 208. Battery; 209. Heat dissipation vent; 210. Air outlet duct; 3. Rainwater triggering mechanism; 301. Pressing block; 302. Offset connecting rod; 303. Movable connecting rod; 304. Connecting slide; 305. Telescopic rod; 306. Spring; 307. Receiving compartment; 308. Water pipe; 309. Water collecting tray; 310. Drain pipe; 311. Connecting telescopic rod. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 16 The present invention provides a technical solution: an outdoor energy storage device for a photovoltaic power station, comprising an outdoor power supply 1, an overload protection mechanism 2 provided on one side of an inner wall of the outdoor power supply 1 for providing protection for the device when the internal temperature of the device is too high, and a rain triggering mechanism 3 provided on the top of the overload protection mechanism 2 for automatically triggering the overload protection mechanism 2 to provide protection for the device when it rains; The overload protection mechanism 2 includes an outer shell 201 mounted on the top of the inner wall of the outdoor power supply 1. The inner wall of the outer shell 201 is provided with an inner shell 202. A limit clamping rod 203 is installed on the top of the inner shell 202. A connecting block 204 is provided at one end of the limit clamping rod 203. A trigger ball 205 is movably provided on the inner wall of the connecting block 204. The rainwater triggering mechanism 3 includes a pressure block 301 movably mounted on the top of the trigger ball 205 , an offset link 302 is movably mounted on the outer wall of the pressure block 301 , one end of the offset link 302 is connected to a movable link 303 , and a connecting slot 304 is provided on the outer wall of the movable link 303 .

[0028] As this embodiment, hot weather will cause the internal temperature of the outdoor power supply 1 to become higher, thereby causing the temperature of the wind blown out from the heat dissipation port 209 to become higher, and the high-temperature wind is discharged into the outer wall of the limit clamp rod 203 through the air outlet pipe 210. The limit clamp rod 203 will expand when heated, causing the inner diameter of the limit clamp rod 203 to increase. When the inner diameter of the limit clamp rod 203 increases, the connecting block 204 will be slightly stretched, and without the limitation of the limit clamp rod 203, the trigger ball 205 will fall off to the inner wall of the inner shell 202 (the diameter of the limit clamp rod 203 in the initial state is slightly smaller than the diameter of the trigger ball 205, so that the trigger ball 205 will be stuck on the outer wall of the limit clamp rod 203 and will not move).

[0029] The outer wall of the trigger ball 205 is connected to a reset rod 206, a push switch 207 is provided at the bottom of the inner wall of the outer shell 201, a battery 208 is provided at the bottom of the push switch 207, a heat dissipation port 209 is provided on one side of the outer shell 201, and an air outlet duct 210 is connected to the outside of the heat dissipation port 209.

[0030] As this embodiment, the inner wall of the inner shell 202 slides downward and presses the push switch 207. After being pressed, the push switch 207 will send an electrical signal to the battery 208 to stop the battery 208, thereby stopping the operation of the outdoor power supply 1. After the temperature of the outdoor power supply 1 returns to normal, the user only needs to hold one end of the reset rod 206 from the outer wall of the outdoor power supply 1 and pull it upward, and drive the trigger ball 205 to move through the reset rod 206. When the trigger ball 205 moves to the limit clamp rod 203, the trigger ball 205 will squeeze the limit clamp rod 203 to open the limit clamp rod 203. When the limit clamp rod 203 opens, the connecting block 204 will also stretch slightly. After that, after dragging the trigger ball 205 to its original position, the connecting block 204 will reset and drive the limit clamp rod 203 to reset and re-lock the trigger ball 205 (the user can reset the trigger ball 205 by holding the reset rod 206 after the device is powered off, thereby restarting the device).

[0031] One end of the pressing block 301 is connected to a telescopic rod 305, and a spring 306 is arranged around the outer wall of the telescopic rod 305. One end of the telescopic rod 305 is connected to a receiving bin 307, and a water pipe 308 is installed on the top of the receiving bin 307. A water collecting tray 309 is provided at one end of the water pipe 308. A drain pipe 310 is provided on one side of the outer wall of the receiving bin 307, and a connecting telescopic rod 311 is installed on the outer wall of the water pipe 308.

[0032] As in this embodiment, the amount of rainwater received in the receiving chamber 307 gradually increases, which causes the weight of the receiving chamber 307 to increase. The increased pressure of the receiving chamber 307 will compress the telescopic rod 305 and the spring 306 to contract and drive the pressure block 301 to move downward. When the pressure block 301 moves downward, it will drive the offset link 302 to rotate. When the offset link 302 rotates, one end of the offset link 302 will drive the movable link 303 to slide to one side. When the movable link 303 slides, due to the contact between the movable link 303 and the limit When the clamp rod 203 is connected, it will drive the limit clamp rod 203 to rotate slightly, so that the inner diameter of the limit clamp rod 203 becomes larger (the rainwater is used to change the weight of the receiving bin 307, so that the receiving bin 307 can drive the limit clamp rod 203 to move through the telescopic rod 305 and spring 306, the pressure block 301 and the offset link 302, and the movable link 303, thereby increasing the inner diameter of the limit clamp rod 203, causing the trigger ball 205 to fall onto the press switch 207 and stop the equipment from running).

[0033] The limiting clamping rods 203 are all movably connected through a rotating shaft. The limiting clamping rods 203 are made of metal. The connecting blocks 204 are connected to both ends of the limiting clamping rods 203.

[0034] As this embodiment, when the movable link 303 slides, since the movable link 303 is connected to the limit clamp rod 203, it will drive the limit clamp rod 203 to rotate slightly, so that the inner diameter of the limit clamp rod 203 becomes larger. While the limit clamp rod 203 rotates, the connecting block 204 will also be slightly stretched. At this time, the trigger ball 205 will continue to fall as described above, causing the battery 208 to stop running.

[0035] The three-dimensional view of the connection block 204 is a cuboid, and the material of the connection block 204 is elastic material.

[0036] In this embodiment, the connecting block 204 is made of silicone rubber, which has excellent high and low temperature resistance and an operating temperature range of -60°C to 250°C. It can still maintain good elasticity and flexibility in a high temperature environment, so that the connecting block 204 has the function of deformation and reset (the special material of the connecting block 204 makes the limit clamp rod 203 movable, but the material characteristics of the connecting block 204 make the limit clamp rod 203 not move under normal conditions).

[0037] The outer wall of the movable connecting rod 303 is connected to the outer wall of the limiting clamping rod 203 , and the movable connecting rod 303 is adapted to the connecting sliding groove 304 .

[0038] As this embodiment, when the movable link 303 slides, since the movable link 303 is connected to the limit clamp rod 203, it will drive the limit clamp rod 203 to rotate slightly, so that the inner diameter of the limit clamp rod 203 becomes larger. While the limit clamp rod 203 rotates, the connecting block 204 will also be slightly stretched. At this time, the trigger ball 205 will continue to fall as described above, causing the battery 208 to stop running.

[0039] One end of the offset link 302 is movably connected to the outer wall of the pressing block 301 , and the other end of the offset link 302 is movably connected to one end of the movable link 303 .

[0040] In this embodiment, the increased pressure of the weight of the receiving chamber 307 will compress the telescopic rod 305 and the spring 306 to contract and drive the pressure block 301 to move downward. When the pressure block 301 moves downward, it will drive the offset link 302 to rotate, and when the offset link 302 rotates, one end of the offset link 302 will drive the movable link 303 to slide to one side.

[0041] The outer walls of the outer shell 201 and the inner shell 202 are both provided with sliding grooves, and the diameters of the sliding grooves of the outer shell 201 and the inner shell 202 are adapted to the diameter of the reset rod 206 .

[0042] As this embodiment, the trigger ball 205 is driven to move by the reset rod 206. When the trigger ball 205 moves to the limit clamp rod 203, the trigger ball 205 will squeeze the limit clamp rod 203 to open the limit clamp rod 203. When the limit clamp rod 203 opens, the connecting block 204 will also stretch slightly. After that, after the trigger ball 205 is dragged to its original position, the connecting block 204 will reset, thereby driving the limit clamp rod 203 to reset and re-jaw the trigger ball 205.

[0043] The push switch 207 is aligned with the bottom of the trigger ball 205 , and the push switch 207 is electrically connected to the battery 208 through an electrical signal.

[0044] In this embodiment, the trigger ball 205 will fall off to the inner wall of the inner shell 202, slide downward through the inner wall of the inner shell 202 and press the push switch 207. After being pressed, the push switch 207 will send an electrical signal to the battery 208 to stop the battery 208, thereby stopping the outdoor power supply 1 from running.

[0045] Sliders and sliding grooves are provided on both sides of the receiving bin 307 and are adapted to each other, and the bottom of the outer wall of the receiving bin 307 is connected to one end of the telescopic rod 305 .

[0046] As this embodiment, the water collecting tray 309 will discharge the rainwater into the inner wall of the receiving chamber 307 through the water pipe 308. As the amount of rainwater received inside the receiving chamber 307 gradually increases, the weight of the receiving chamber 307 will also increase. The increased weight of the receiving chamber 307 will compress the telescopic rod 305 and the spring 306 to contract and drive the pressure block 301 to move downward.

[0047] Working principle: When using the outdoor energy storage device of this photovoltaic power station, first, when the outdoor power supply 1 is in daily operation, if it encounters hot weather, the internal temperature of the outdoor power supply 1 will become higher, thereby making the temperature of the wind blown out from the heat dissipation port 209 higher, and the high-temperature wind is discharged into the outer wall of the limit clamp rod 203 through the air outlet pipe 210. The limit clamp rod 203 will expand when heated, causing the inner diameter of the limit clamp rod 203 to increase. When the inner diameter of the limit clamp rod 203 increases, the connecting block 204 will be slightly stretched, and without the limit of the limit clamp rod 203, the trigger ball 205 will fall off to the inner wall of the inner shell 202, slide downward through the inner wall of the inner shell 202 and press the press switch 207, pressing the switch When the switch 207 is pressed, it sends an electrical signal to the battery 208 to stop the battery 208, thereby stopping the operation of the outdoor power supply 1. After the temperature of the outdoor power supply 1 returns to normal, the user only needs to hold one end of the reset rod 206 from the outer wall of the outdoor power supply 1 and pull it upwards, so that the reset rod 206 drives the trigger ball 205 to move. When the trigger ball 205 moves to the limit clamping rod 203, the trigger ball 205 squeezes the limit clamping rod 203 to open the limit clamping rod 203. When the limit clamping rod 203 opens, the connecting block 204 will also extend slightly. After that, when the trigger ball 205 is dragged to its original position, the connecting block 204 will reset, thereby driving the limit clamping rod 203 to reset and re-lock the trigger ball 205. Finally, when it rains, the rainwater will be caught by the water collecting pan 309, and the water collecting pan 309 will discharge the rainwater into the inner wall of the receiving chamber 307 through the water pipe 308. As the rainwater received in the receiving chamber 307 gradually increases, the weight of the receiving chamber 307 will also increase, and the increased pressure of the receiving chamber 307 will compress the telescopic rod 305 and the spring 306 to contract and drive the pressure block 301 to move downward. When the pressure block 301 moves downward, it will drive the offset link 302 to rotate, and when the offset link 302 rotates, one end of the offset link 302 will drive the movable link 303 to slide to one side. When the movable link 303 slides, the movable link 303 and the spring 306 will contract. When the limit clamp rod 203 is connected, the limit clamp rod 203 will be driven to rotate slightly, so that the inner diameter of the limit clamp rod 203 becomes larger. When the limit clamp rod 203 rotates, the connecting block 204 will also be slightly stretched. At this time, the trigger ball 205 will continue to fall as described above, causing the battery 208 to stop running. After that, the user continues to hold the reset rod 206 and pull it upward to reset the trigger ball 205, and then opens one end of the drain pipe 310 to drain the rainwater inside the receiving chamber 307. After the weight of the receiving chamber 307 is restored, the telescopic rod 305 and the spring 306 will drive the pressure block 301 to reset, thereby resetting the movable connecting rod 303.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An outdoor energy storage device for a photovoltaic power station, comprising an outdoor power supply (1), an overload protection mechanism (2) provided on one side of the inner wall of the outdoor power supply (1) for providing protection for the device when the internal temperature of the device is too high, and characterized in that: It also includes a rain triggering mechanism (3) disposed on the top of the overload protection mechanism (2) for automatically triggering the overload protection mechanism (2) to provide protection for the device when it rains; The overload protection mechanism (2) comprises an outer shell (201) mounted on the top of the inner wall of the outdoor power supply (1); an inner shell (202) is provided on the inner wall of the outer shell (201); a limit clamping rod (203) is installed on the top of the inner shell (202); a connecting block (204) is provided at one end of the limit clamping rod (203); and a trigger ball (205) is movably provided on the inner wall of the connecting block (204); The rainwater triggering mechanism (3) comprises a pressing block (301) movably mounted on the top of the triggering ball (205); an offset connecting rod (302) is movably mounted on the outer wall of the pressing block (301); one end of the offset connecting rod (302) is connected to a movable connecting rod (303); and a connecting chute (304) is provided on the outer wall of the movable connecting rod (303).

2. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The outer wall of the trigger ball (205) is connected to a reset rod (206), the bottom of the inner wall of the outer shell (201) is provided with a push switch (207), the bottom of the push switch (207) is provided with a battery (208), and a heat dissipation port (209) is provided on one side of the outer shell (201), and the outside of the heat dissipation port (209) is connected to an air outlet pipe (210).

3. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: One end of the pressing block (301) is connected to a telescopic rod (305), an outer wall of the telescopic rod (305) is surrounded by a spring (306), one end of the telescopic rod (305) is connected to a receiving bin (307), a water pipe (308) is installed on the top of the receiving bin (307), one end of the water pipe (308) is provided with a water collecting tray (309), a drain pipe (310) is provided on one side of the outer wall of the receiving bin (307), and a connecting telescopic rod (311) is installed on the outer wall of the water pipe (308).

4. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The limiting clamping rods (203) are all movably connected via a rotating shaft. The limiting clamping rods (203) are made of metal. The connecting blocks (204) are all connected to both ends of the limiting clamping rods (203).

5. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The three-dimensional view of the connecting block (204) is a cuboid, and the material of the connecting block (204) is an elastic material.

6. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The outer wall of the movable connecting rod (303) is connected to the outer wall of the limiting clamping rod (203), and the movable connecting rod (303) is adapted to the connecting sliding groove (304).

7. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: One end of the offset connecting rod (302) is movably connected to the outer wall of the pressing block (301), and the other end of the offset connecting rod (302) is movably connected to one end of the movable connecting rod (303).

8. The outdoor energy storage device for a photovoltaic power station according to claim 2, characterized in that: The outer walls of the outer shell (201) and the inner shell (202) are both provided with sliding grooves, and the diameters of the sliding grooves of the outer shell (201) and the inner shell (202) are adapted to the diameter of the reset rod (206).

9. The outdoor energy storage device for a photovoltaic power station according to claim 2, characterized in that: The push switch (207) is aligned with the bottom of the trigger ball (205), and the push switch (207) is electrically connected to the battery (208) through an electrical signal.

10. The outdoor energy storage device for a photovoltaic power station according to claim 3, characterized in that: Slide blocks and sliding grooves are provided on both sides of the receiving bin (307) and are adapted to each other. The bottom of the outer wall of the receiving bin (307) is connected to one end of the telescopic rod (305).

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