Photovoltaic energy storage device

Abstract

The present invention relates to the technical field of energy storage equipment, and specifically to a photovoltaic energy storage equipment, comprising an energy storage cabinet, a mercury piston drive assembly, a coolant spray assembly, a force amplification assembly and a limit assembly, wherein the mercury piston drive assembly comprises a piston part and a drive part, wherein the piston part is installed close to a heat source, and the drive part is connected to an air guide plate, and the movement of the drive part is realized by the piston part, so that a plurality of the air guide plates are synchronously deflected. The present invention arranges a mercury piston drive assembly, utilizes that the volume of mercury changes significantly with temperature, and can adaptively adjust the opening of the vent according to the temperature change inside the energy storage cabinet, thereby effectively adjusting the ventilation volume inside the energy storage cabinet, ensuring that the electrical equipment operates stably under a suitable temperature environment, improving the overall safety and reliability of the energy storage cabinet, and reducing the risk of equipment failure caused by excessive temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to a photovoltaic energy storage equipment. Background Art

[0002] Photovoltaic energy storage equipment, as the name implies, is a device that stores electrical energy converted from solar energy. This type of equipment is mainly used to solve the problem of unstable solar power generation, that is, to store excess electricity when there is sufficient sunshine, and to release the stored electricity for use at night or in bad weather.

[0003] At present, common photovoltaic energy storage equipment exists in the form of photovoltaic energy storage cabinets, which have a wide range of application scenarios and can be placed in both indoor and outdoor environments. Inside the photovoltaic energy storage cabinet, key electrical equipment such as energy storage batteries, controllers and inverters are integrated. These devices will generate heat during operation. In order to ensure its stable operation and extend its service life, heat dissipation has become a key issue. Therefore, most photovoltaic energy storage cabinets are equipped with vents on the cabinet to promote air circulation and take away internal heat. However, the current method of adjusting the opening of the vents has certain disadvantages. Usually, electric or pneumatic equipment is used to adjust the opening of the vents. This adjustment method requires additional electricity or compressed air and other energy in actual operation. Especially in some photovoltaic energy storage systems with extremely high energy efficiency requirements, this undoubtedly increases the overall energy consumption of the system and reduces the effective utilization rate of energy, which is not conducive to the energy-saving development of photovoltaic energy storage equipment and the control of long-term operating costs. For this reason, we propose a photovoltaic energy storage device. Summary of the invention

[0004] In order to solve the above technical problems, the embodiment of the present application provides a photovoltaic energy storage device, including an energy storage cabinet, both sides of the energy storage cabinet are provided with vents, an air guide frame is installed in the vent, and a plurality of rotatable air guide plates are vertically equidistantly arranged in the air guide frame, and also includes:

[0005] A mercury piston drive assembly, the mercury piston drive assembly comprising a piston part and a drive part, the piston part is installed close to the heat source, the drive part is connected to the air guide plate, the drive part is moved by the piston part, so that a plurality of the air guide plates are deflected synchronously, and when a fire occurs inside the energy storage cabinet, the piston part can expand and break, and at this time the drive part drives the air guide plate to close the vent by gravity;

[0006] A coolant spraying assembly, wherein the coolant spraying assembly is arranged on the energy storage cabinet, and the coolant outlet of the coolant spraying assembly faces the inner port of the vent;

[0007] A force amplification component, the force amplification component is arranged between the coolant spraying component and the mercury piston driving component, and after the mercury piston driving component realizes the maximum air guide of the air guide plate, the coolant spraying component is started by the force amplification component to spray the coolant;

[0008] The limit assembly is used to limit the air guide plate from being compressed and rotating outward after a fire occurs inside the energy storage cabinet and the piston part expands and breaks.

[0009] In some embodiments, the piston portion includes a cylinder with mercury inside, the cylinder is vertically installed, and a piston is provided inside the cylinder, and the end of the piston is connected to a guide rod, and the guide rod passes through the top of the cylinder.

[0010] In some embodiments, the driving part includes a rack and multiple gears, each air guide plate corresponds to a gear, and the gear is installed at the end of the air guide plate hinge shaft, the rack is vertically fixed to the top of the guide rod, and the rack is meshed and connected to the gear.

[0011] In some embodiments, the coolant spray assembly includes a coolant storage tank vertically installed on the rear side of the energy storage cabinet and filled with liquid nitrogen, a push spray button is provided on the top of the coolant storage tank, and a nozzle is connected to the upper end of the coolant storage tank, and an atomizing nozzle is installed on the end of the nozzle.

[0012] In some embodiments, the force amplification component includes a lever bar, a second connecting bar and a push rod, the second connecting bar is connected to the outer wall of the air guide frame, and the second connecting bar is located on the side close to the coolant storage tank, the upper end surface of the second connecting bar and the end away from the air guide frame are vertically connected to the third connecting bar, the lever bar is laterally hinged to the top of the third connecting bar, and the push rod is connected to the top of the rack.

[0013] In some embodiments, the bar is divided into two parts at its hinge, and the section close to the push button is shorter than the section close to the push rod.

[0014] In some embodiments, a stop block is fixed to the lower end surface of the longer portion of the lever near the end, and the lower end surface of the stop block is provided with an embedding groove that is not less than the diameter of the push rod.

[0015] In some embodiments, the limiting assembly includes a protrusion and a first connecting strip, the protrusion is fixed to the upper end of the inner port of the air guide frame, and a through groove is opened on the protrusion, one end of the first connecting strip is connected to the outer wall of the push rod, and the lower end surface of the first connecting strip and one end away from the push rod is connected to the limiting strip, and the limiting strip passes through the through groove.

[0016] In some embodiments, the length of the limit strip is greater than half of the width of the air guide plate and less than the width of the air guide plate, and when the air guide plate allows the vent to guide air at the maximum, the bottom end of the limit strip is not lower than the lower end surface of the protrusion.

[0017] In some embodiments, a filter is detachably mounted at an outer port of the air guide frame.

[0018] The present invention has at least the following beneficial effects:

[0019] 1. Adaptive adjustment: By setting up a mercury piston drive assembly, the volume of mercury will change significantly with temperature changes. The opening of the vents can be adaptively adjusted according to the temperature changes inside the energy storage cabinet, thereby effectively adjusting the ventilation volume inside the energy storage cabinet, ensuring that the electrical equipment operates stably under a suitable temperature environment, improving the overall safety and reliability of the energy storage cabinet, reducing the risk of equipment failure caused by excessive temperature, and extending the service life of electrical equipment.

[0020] 2. Simple and compact structure, energy saving and consumption reduction: The mercury piston drive assembly is used to achieve adaptive adjustment, and there is no need to use electric or pneumatic means to adjust the vent opening, which effectively saves energy. The mercury piston drive assembly itself has a relatively simple structure and occupies a small space, which is convenient for layout and installation in the limited space of the energy storage cabinet, which is conducive to the optimization design of the overall structure of the energy storage system.

[0021] 3. Efficient heat dissipation and emergency cooling guarantee: By setting up a coolant spray component and a force amplification component, after the temperature inside the energy storage cabinet gradually rises to the maximum opening of the vent, as the temperature continues to rise, the volume of mercury continues to expand due to heat, and the push rod pushes the long section of the bar hinged to the top of the third connecting bar. According to the principle of leverage, when the end of the other downward-moving bar presses down and presses the spray button, liquid nitrogen is sprayed to the inner port of the vent in an atomized form. With the help of the airflow power generated by the ventilation system, the low-temperature liquid nitrogen droplets can be quickly and evenly dispersed to various areas inside the energy storage cabinet, thereby efficiently taking away the heat and achieving rapid cooling of the internal environment of the energy storage cabinet.

[0022] 4. Enhance the effect of anaerobic fire extinguishing: When the rack moves downward, the limit strip passing through the slot can be attached to the surface of the air guide plate, forming an effective blocking obstacle, so that the air guide plate will not deflect, thereby effectively ensuring the sealing of the energy storage cabinet during the anaerobic fire extinguishing process, providing a solid and reliable guarantee for successful fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the internal structure of the energy storage cabinet of the present invention;

[0024] Figure 2It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the appearance structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the mercury piston drive assembly, the coolant spray assembly, the limit assembly and the force amplification assembly of the present invention in a combined state;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure from another perspective;

[0028] Figure 6 It is a cross-sectional structural schematic diagram of the piston part of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the present invention in which the air guide frame and the limit assembly are combined;

[0030] Figure 8 It is a structural schematic diagram of the air guide frame of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the coolant spraying assembly and the force amplification assembly of the present invention in a combined state;

[0032] Fig.10 It is a schematic diagram of the structure of the first connecting strip and the push rod in the connected state of the present invention.

[0033] In the figure: 1-energy storage cabinet; 2-ventilation port; 3-air guide frame; 4-air guide plate;

[0034] 5- mercury piston drive assembly; 51- piston part; 511- cylinder; 512- guide rod; 513- piston; 52- drive part; 521- rack; 522- gear;

[0035] 6-coolant spray assembly; 61-coolant storage tank; 62-press spray button; 63-spray pipe; 64-atomizing nozzle;

[0036] 7-limiting assembly; 71-bump; 711-through slot; 72-limiting strip; 73-first connecting strip;

[0037] 8-Filter;

[0038] 9-force amplification component; 91-bar; 92-second connecting bar; 93-push rod; 94-third connecting bar; 95-block. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figure 1-Figure 10 As shown, the present invention provides a technical solution: a photovoltaic energy storage device, including an energy storage cabinet 1, a door body is installed on the front side of the energy storage cabinet 1, a visual window can be installed on the door body, the visual window has good light transmittance and visibility, the internal situation of the energy storage cabinet 1 can be clearly observed through the visual window, and energy storage batteries, controllers and inverters are arranged inside the energy storage cabinet 1, the function of the inverter is to convert direct current into alternating current for use in households, businesses or power grids, vents 2 are opened on both sides of the energy storage cabinet 1, an air guide frame 3 is installed in the vent 2, and a plurality of rotatable air guide plates 4 are vertically equidistantly arranged in the air guide frame 3, and the opening of the vent 2 can be adjusted by adjusting the inclination angle of the air guide plate 4.

[0041] In addition, the photovoltaic energy storage device also includes a mercury piston drive assembly 5, a coolant spray assembly 6, a limit assembly 7 and a force amplification assembly 9. The mercury piston drive assembly 5 includes a piston part 51 and a drive part 52. The piston part 51 is installed close to the heat source. Preferably, each vent 2 corresponds to a mercury piston drive assembly 5. The drive part 52 is connected to the air guide plate 4. The piston part 51 is used to realize the movement of the drive part 52, so that the multiple air guide plates 4 are synchronously deflected, thereby realizing the adjustment of the opening of the vent 2. When the ends of the multiple air guide plates 4 are overlapped, this When the air vent 2 is in a blocked state, and when the air guide plates 4 are arranged in parallel up and down, the air vent 2 will reach its maximum opening, and the maximum degree of ventilation can be achieved at this time. The air can flow smoothly through the air vent 2, effectively enhancing the ventilation effect, so that the air in the space can be quickly updated and circulated to maintain the internal temperature of the energy storage cabinet 1. When a fire occurs inside the energy storage cabinet 1, the piston part 51 can expand and break. At this time, the driving part 52 relies on gravity to drive the air guide plates 4 to close the air vent 2 to prevent the outside air from continuing to enter, so as to achieve anaerobic extinguishing. Fire, greatly improves the efficiency and success rate of fire extinguishing, reduces the losses and hazards caused by fire, and provides strong technical support and safeguard measures for protecting the safety of life and property. The coolant spraying assembly 6 is arranged on the energy storage cabinet 1, and the coolant outlet of the coolant spraying assembly 6 faces the inner port of the vent 2. The force amplification assembly 9 is arranged between the coolant spraying assembly 6 and the mercury piston driving assembly 5. After the mercury piston driving assembly 5 realizes the maximum air guide of the air guide plate 4, if the internal temperature of the energy storage cabinet 1 continues to rise, the coolant spraying is started through the force amplification assembly 9. Component 6 sprays coolant, and limit component 7 is used to limit the air guide plate 4 from being pressed and rotating outward after a fire occurs inside the energy storage cabinet 1 and the piston part 51 expands and breaks, so as to ensure the sealing effect. A sealing gasket can be arranged on the edge of the air guide plate 4, and the sealing gasket can tightly fill the tiny gap between the air guide plates 4 to effectively prevent air leakage, thereby creating more reliable conditions for achieving anaerobic fire extinguishing, and further enhancing the automatic fire extinguishing capability of the entire energy storage device. Such a sealing gasket can be made of rubber or silicone material with good elasticity and wear resistance.

[0042] Among them, see Figure 6 As shown, the piston part 51 includes a cylinder 511 with mercury inside. The cylinder 511 is installed vertically, and a piston 513 is provided inside the cylinder 511. The end of the piston 513 is connected to a guide rod 512, and the guide rod 512 passes through the top of the cylinder 511.

[0043] See also Figure 4-Figure 5As shown, the driving part 52 includes a rack 521 and a plurality of gears 522, each air guide plate 4 corresponds to a gear 522, and the gear 522 is installed at the end of the hinge shaft of the air guide plate 4, the rack 521 is vertically fixed to the top of the guide rod 512, and the rack 521 is meshed and connected to the gear 522. Inside the energy storage cabinet 1, the electrical equipment will generate heat during continuous operation, which will cause the temperature inside the cabinet to gradually increase. At this time, the mercury inside the cylinder 511 begins to expand due to the effect of heat. This expansion phenomenon will generate an upward thrust, which acts on the piston 513, so that the piston 513 moves upward along the inner wall of the cylinder 511, and the guide rod 512 closely connected to the piston 513 will also move with the activity. The plug 513 moves upward synchronously, so the upward movement of the guide rod 512 can push the rack 521 to move upward. When the rack 521 moves upward, the meshing gear 522 will rotate, thereby finally realizing the automatic adjustment of the inclination angle of the air guide plate 4. As the inclination angle of the air guide plate 4 changes, the opening of the vent 2 will also change accordingly, thereby realizing the adaptive adjustment of the opening of the vent 2, and then effectively adjusting the ventilation volume inside the energy storage cabinet 1, ensuring that the electrical equipment operates stably under a suitable temperature environment, improving the overall safety and reliability of the energy storage cabinet 1, reducing the risk of equipment failure caused by excessive temperature, extending the service life of the electrical equipment, and ensuring the continuous and efficient operation of the energy storage system.

[0044] When the internal temperature decreases, the mercury expansion volume inside the cylinder 511 decreases, and the piston 513 can be automatically retracted to achieve automatic adjustment of the vent 2.

[0045] See also Figure 4-Figure 5 as well as Fig. 9 As shown, the coolant spray assembly 6 includes a coolant storage tank 61 vertically installed on the rear side of the energy storage cabinet 1. The coolant storage tank 61 is filled with liquid nitrogen. A press spray button 62 is provided on the top of the coolant storage tank 61, and a nozzle 63 is connected to the upper end of the coolant storage tank 61. An atomizing nozzle 64 is installed at the end of the nozzle 63. The coolant storage tank 61, the nozzle 63 and the atomizing nozzle 64 are made of materials that can withstand low temperatures, and the coolant storage tank 61 can withstand high pressure.

[0046] See also Figure 4-Figure 5 as well as Fig. 9As shown, the force amplification component 9 includes a lever 91, a second connecting bar 92 and a push rod 93, the second connecting bar 92 is connected to the outer wall of the air guide frame 3, and the second connecting bar 92 is located on the side close to the coolant storage tank 61, and the upper end surface of the second connecting bar 92 and the end away from the air guide frame 3 are vertically connected to the third connecting bar 94, the lever 91 is laterally hinged to the top of the third connecting bar 94, and the push rod 93 is connected to the top of the rack 521, wherein the lever 91 is divided into two parts at its hinge, a section close to the press spray button 62 is shorter than a section close to the push rod 93, and a stop block 95 is fixed near the end of the lower end surface of the longer part of the lever 91, and the lower end surface of the stop block 95 is provided with an embedding groove that is not less than the diameter of the push rod 93.

[0047] Through the above, after the temperature inside the energy storage cabinet 1 gradually rises to the maximum opening of the vent 2 (when the vent 2 is at its maximum opening, the top of the push rod 93 is in good contact with the top surface of the groove on the stop block 95), as the temperature continues to rise, the mercury inside the cylinder 511 is heated and vaporized, and the volume continues to expand. This expansion force will forcefully push the rack 521 connected thereto to continue to move upward. In this process, the push rod 93 will be pushed upward, and then push the long section of the bar 91 hinged to the top of the third connecting bar 94. According to the lever principle, the other end of the bar 91 will move downward accordingly, and this downwardly moved end is just in a corresponding position with the press spray button 62. When the downwardly moved bar 91 1 When the spray button 62 is pressed accurately at the end, the valve of the coolant storage tank 61 is smoothly opened. Under the action of the pressure difference, the liquid nitrogen stored in the tank quickly flows to the atomizing nozzle 64 through the nozzle 63 and is sprayed to the inner port of the vent 2 in the form of atomization. At this time, with the help of the airflow power generated by the ventilation system, the low-temperature liquid nitrogen droplets can be quickly and evenly dispersed to various areas inside the energy storage cabinet 1, especially directly acting on the heat source. The liquid nitrogen will absorb a lot of heat during the gasification process, thereby efficiently taking away the heat, realizing the rapid cooling of the internal environment of the energy storage cabinet 1, effectively ensuring the stable operation of the energy storage equipment under a suitable temperature environment, and avoiding various safety hazards and performance losses caused by high temperature.

[0048] The coolant spraying assembly 6 may be provided at both vents 2, preferably at the air inlet.

[0049] See also Figure 4-Figure 5 as well as Figure 7-Figure 8 As shown, the limiting assembly 7 includes a protrusion 71 and a first connecting strip 73. The protrusion 71 is fixed to the upper end of the inner port of the air guide frame 3, and a through groove 711 is opened on the protrusion 71. One end of the first connecting strip 73 is connected to the outer wall of the push rod 93, and the lower end surface of the first connecting strip 73 and one end away from the push rod 93 is connected to the limiting strip 72, and the limiting strip 72 passes through the through groove 711.

[0050] The length of the limit strip 72 is greater than half of the width of the air guide plate 4 and less than the width of the air guide plate 4 , and when the air guide plate 4 allows the vent 2 to guide air at maximum, the bottom end of the limit strip 72 is not lower than the lower end surface of the protrusion 71 .

[0051] As described above, if an accidental fire occurs inside the energy storage cabinet 1, the temperature will rise sharply. In this case, the above-mentioned cooling method is difficult to cope with such an emergency situation. As the fire spreads, the high temperature will cause the mercury inside the cylinder 511 to expand rapidly. When the temperature exceeds the bearing limit of the cylinder 511, the cylinder 511 will break. The rack 521, which previously relied on the upward thrust generated by the expansion of mercury inside the cylinder 511 to maintain its position, will now move downward rapidly under the action of gravity due to the loss of this upward supporting force. The air guide plate 4 connected thereto will also rotate accordingly until the ends of the air guide plates 4 fit together, thereby tightly sealing the vents. In this way, the outside air can no longer enter the energy storage cabinet 1. When the original air inside the cabinet is gradually exhausted during the combustion process, the oxygen supply is no longer available, and the effect of anaerobic fire extinguishing can be achieved, effectively curbing the further development of the fire.

[0052] It is worth noting that, in the process of the rack 521 moving downward, the limit strip 72 passing through the through groove 711 will also move downward synchronously, and the limit strip 72 can be close to the surface of the air guide plate 4 to form an effective blocking obstacle. The cleverness of this design lies in that when the remaining oxygen inside the sealed energy storage cabinet 1 participates in the combustion and produces a large amount of gas, even if the gas produces an impact force on the hinged air guide plate 4, the air guide plate 4 will not deflect, thereby effectively ensuring the sealing of the energy storage cabinet 1 during the anaerobic fire extinguishing process, providing a solid and reliable guarantee for successful fire extinguishing, and minimizing the damage and threat caused by the fire to the energy storage cabinet and the surrounding environment.

[0053] Example 2: Please refer to Figure 1 and Figure 3 As shown, this embodiment is extended on the basis of embodiment 1: a filter screen 8 is detachably installed at the outer port of the air guide frame 3, and the filter screen 8 can effectively intercept dust, impurities and various tiny particles in the air. A guide fan can be installed inside the air guide frame 3 and on the inner side of the filter screen 8.

[0054] Among them, since the filter screen 8 adopts a detachable installation method, when the filter screen 8 needs to be cleaned or replaced after long-term use, the staff can easily remove it, perform corresponding maintenance operations, and then easily install it back in place, ensuring that the entire ventilation and filtration system continues to function effectively, and the filter screen 8 can be installed in a detachable manner such as bolts and snaps.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A photovoltaic energy storage device, comprising an energy storage cabinet (1), wherein both sides of the energy storage cabinet (1) are provided with ventilation holes (2), an air guide frame (3) is installed in the ventilation hole (2), and a plurality of rotatable air guide plates (4) are vertically equidistantly arranged in the air guide frame (3), characterized in that: Also included are: A mercury piston drive assembly (5), the mercury piston drive assembly (5) comprising a piston part (51) and a drive part (52), the piston part (51) being installed close to a heat source, the drive part (52) being connected to an air guide plate (4), the drive part (52) being moved by the piston part (51) so that a plurality of air guide plates (4) are deflected synchronously, and when a fire occurs inside the energy storage cabinet (1), the piston part (51) can expand and break, and at this time the drive part (52) drives the air guide plate (4) by gravity to close the vent (2); A coolant spraying assembly (6), wherein the coolant spraying assembly (6) is arranged on the energy storage cabinet (1), and the coolant outlet of the coolant spraying assembly (6) faces the inner port of the vent (2); A force amplifying component (9), the force amplifying component (9) being arranged between the coolant spraying component (6) and the mercury piston driving component (5), and after the mercury piston driving component (5) achieves maximum air flow through the air guide plate (4), the coolant spraying component (6) is started to spray the coolant through the force amplifying component (9); A limit assembly (7) is used to limit the air guide plate (4) from being compressed and rotating outward after a fire occurs inside the energy storage cabinet (1) and the piston part (51) expands and breaks.

2. The photovoltaic energy storage device according to claim 1, characterized in that: The piston part (51) comprises a cylinder (511) with mercury inside. The cylinder (511) is installed vertically, and a piston (513) is arranged inside the cylinder (511). The end of the piston (513) is connected to a guide rod (512), and the guide rod (512) passes through the top end of the cylinder (511).

3. The photovoltaic energy storage device according to claim 2, characterized in that: The driving part (52) comprises a rack (521) and a plurality of gears (522), each of the air guide plates (4) corresponds to a gear (522), and the gear (522) is mounted on the end of the hinge shaft of the air guide plate (4), the rack (521) is vertically fixed to the top of the guide rod (512), and the rack (521) is meshedly connected to the gear (522).

4. The photovoltaic energy storage device according to claim 3, characterized in that: The coolant spraying assembly (6) comprises a coolant storage tank (61) vertically mounted on the rear side of the energy storage cabinet (1) and containing liquid nitrogen, a push-button (62) being provided at the top of the coolant storage tank (61), and a spray pipe (63) being connected to the upper end of the coolant storage tank (61), and an atomizing nozzle (64) being installed at the end of the spray pipe (63).

5. The photovoltaic energy storage device according to claim 4, characterized in that: The force amplification component (9) includes a lever (91), a second connecting bar (92) and a push rod (93), wherein the second connecting bar (92) is connected to the outer wall of the air guide frame (3), and the second connecting bar (92) is located on a side close to the coolant storage tank (61), and the upper end surface of the second connecting bar (92) and one end away from the air guide frame (3) is vertically connected to a third connecting bar (94), the lever (91) is laterally hinged to the top end of the third connecting bar (94), and the push rod (93) is connected to the top end of the rack (521).

6. The photovoltaic energy storage device according to claim 5, characterized in that: The bar (91) is divided into two parts at its hinge, and a section close to the spray button (62) is shorter than a section close to the push rod (93).

7. The photovoltaic energy storage device according to claim 6, characterized in that: A stopper (95) is fixed to the lower end surface of the longer portion of the lever (91) near the end, and a groove not less than the diameter of the push rod (93) is formed on the lower end surface of the stopper (95).

8. The photovoltaic energy storage device according to claim 5, characterized in that: The limiting assembly (7) comprises a protrusion (71) and a first connecting strip (73); the protrusion (71) is fixed to the upper end of the inner port of the air guide frame (3); and a through slot (711) is provided on the protrusion (71); one end of the first connecting strip (73) is connected to the outer wall of the push rod (93); the lower end surface of the first connecting strip (73) and one end away from the push rod (93) is connected to the limiting strip (72); and the limiting strip (72) passes through the through slot (711).

9. The photovoltaic energy storage device according to claim 8, characterized in that: The length dimension of the limit strip (72) is greater than half of the width dimension of the wind guide plate (4) and less than the width dimension of the wind guide plate (4), and when the wind guide plate (4) allows the vent (2) to guide air at maximum, the bottom end of the limit strip (72) is not lower than the lower end surface of the protrusion (71).

10. The photovoltaic energy storage device according to claim 1, characterized in that: A filter screen (8) is detachably mounted at the outer port of the air guide frame (3).

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