Outdoor photovoltaic energy storage device and energy storage system

Abstract

The application relates to the technical field of photovoltaic energy storage equipment, in particular to an outdoor photovoltaic energy storage equipment and an energy storage system, which comprises a cooling cavity formed in the side of an energy storage cabinet, a circulating water pump arranged at the bottom of a supporting base, a supporting plate arranged on the outer side of the energy storage cabinet, a positioning groove formed on the surface of a liquid storage tank, a main controller arranged in a protection door, the main controller being electrically connected with the circulating water pump and an electric push rod, and a temperature sensor and a water level sensor arranged on the inner side of a sealing baffle; the energy storage battery can be placed in the energy storage cabinet for protection; when the surface temperature of the energy storage cabinet is too high, the cooling liquid can be first pumped into the cooling cavity formed in the side of the energy storage cabinet through the main controller in cooperation with the circulating water pump; on one hand, the cooling cavity formed in the side of the energy storage cabinet can be used to reduce the heat transfer; on the other hand, the temperature of the surface of the energy storage cabinet can be further reduced by injecting the cooling liquid into the cooling cavity, so that the protection of the energy storage battery is improved, and the temperature in the energy storage cabinet is prevented from being too high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic energy storage equipment, in particular to an outdoor photovoltaic energy storage equipment and energy storage system. BACKGROUND

[0002] Photovoltaic energy storage, also known as solar photovoltaic energy storage system, is a kind of energy utilization mode combining solar photovoltaic power generation and energy storage technology. It converts solar energy into electric energy through photovoltaic cell panel, and stores the electric energy in energy storage equipment (such as battery pack) for power supply when needed. The energy storage battery is generally installed in a container-like energy storage cabinet, and is generally placed outdoors for energy storage work.

[0003] In the prior art, the shell of the energy storage cabinet is generally made of single-layer metal material, which makes the use environment of the energy storage battery easily affected by the external temperature. Photovoltaic energy storage is generally installed outdoors where the lighting time is long. Therefore, if it is subjected to sunlight for a long time and the external temperature rises, the temperature in the energy storage cabinet will be high for a long time, and the energy storage battery itself will also generate a large amount of heat during use. Therefore, the superposition of multiple heat makes it impossible to guarantee the use environment of the energy storage battery, which easily causes the energy storage battery to be unable to use or even cause fire and explosion, and there is a safety hazard. Therefore, the present application provides an outdoor photovoltaic energy storage equipment and energy storage system to solve the above technical problems. SUMMARY

[0004] The purpose of the present application is to provide an outdoor photovoltaic energy storage equipment and energy storage system to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: an outdoor photovoltaic energy storage equipment, comprising: an energy storage cabinet, a support seat is arranged on the inner side of the energy storage cabinet, an energy storage battery is arranged on the surface of the support seat, a cooling cavity is formed on the side of the energy storage cabinet, a circulating water pump is arranged at the bottom of the support seat, and a support plate is arranged on the outer side of the energy storage cabinet;

[0006] a liquid storage tank, a positioning groove is formed on the surface of the liquid storage tank;

[0007] an electric push rod, a bottom plate is arranged on the lifting end of the electric push rod, and a first sealing plate is arranged on the surface of the bottom plate;

[0008] a protective door, a main controller is arranged in the protective door, and the main controller is electrically connected with the circulating water pump and the electric push rod;

[0009] a sealing baffle, a temperature sensor and a water level sensor are arranged on the inner side of the sealing baffle.

[0010] Preferably, the energy storage cabinet surface is provided with a mounting bracket, the mounting bracket surface is provided with a photovoltaic panel, the photovoltaic panel is electrically connected with the main controller, the electric push rod and the circulating water pump, the supporting plate is fixedly connected to the outer side of the energy storage cabinet, the energy storage cabinet side is provided with a storage groove, the second sealing plate is connected to the side of the storage groove through a hinge, the auxiliary photovoltaic panel is placed in the storage groove, and a drain is formed in the surface of the storage groove.

[0011] Preferably, the electric push rod is fixedly connected to the bottom of the supporting seat, the energy storage battery is installed on the surface of the supporting seat, the supporting seat is provided with a protective frame, the protective frame is in the shape of an L-shaped plate, the input end of the circulating water pump is provided with a water pipe, one end of the water pipe is inserted into the liquid storage tank, the output end of the circulating water pump is provided with a water delivery pipe, one end of the water delivery pipe is inserted into the cooling cavity, the cooling cavity is provided with a positioning frame, and the water delivery pipe is fixedly connected to the positioning frame.

[0012] Preferably, the protective door seals and covers the side of the cooling cavity, the temperature sensor and the water level sensor are electrically connected with the main controller, the bottom of the cooling cavity is provided with a water outlet, the side of the cooling cavity is provided with a positioning clamping groove, the cooling cavity is provided with a fixing seat, and the temperature sensor and the water level sensor are fixedly connected to the side of the protective door.

[0013] Preferably, the fixing seat is provided with a moving groove on the side, the moving groove is provided with a guide rod on the end face, the guide rod is provided with a limiting spring and a positioning rod, one end of the positioning rod is inserted into the positioning clamping groove, the end face of the positioning rod is provided with a moving hole, the positioning rod is slidably connected with the guide rod through the moving hole, one end of the limiting spring is fixedly connected to the end face of the positioning rod, and the other end of the limiting spring is fixedly connected to the end face of the moving groove.

[0014] Preferably, the bottom of the supporting plate is provided with a positioning block, the positioning block is in the shape of a square plate, the positioning block is inserted into the positioning groove, the liquid storage tank is buried in the ground, and the lifting end of the electric push rod is inserted into the liquid storage tank.

[0015] Preferably, the inner side of the fixing seat is provided with a traction plate, the traction plate is in the shape of an L-shaped plate, the fixing seat is provided with two groups of traction plates, the two groups of traction plates are symmetrically distributed about the center line of the long side of the fixing seat, the two groups of traction plates are respectively provided with a first cleaning plate and a second cleaning plate, the side of the first cleaning plate and the second cleaning plate is provided with a rubber pad, and the rubber pad is in contact with the side of the cooling cavity.

[0016] Preferably, the bottom plate is fixedly connected to the lifting end of the electric push rod, the bottom plate is in the shape of a square plate, the first sealing plate is fixedly connected to the surface of the bottom plate, the first sealing plate is in the shape of a square plate, and the first sealing plate is inserted into the water outlet.

[0017] Preferably, the first sealing plate side is provided with a metal gasket, the metal gasket has elasticity, one end of the metal gasket is fixedly connected to the side of the first sealing plate, the first sealing plate side is provided with a placing groove, the end surface of the placing groove is provided with a positioning spring, one end of the positioning spring is fixedly connected to the end surface of the placing groove, the other end of the positioning spring is fixedly connected to the inner side of the metal gasket, the metal gasket is in a square plate structure, and the metal gasket is provided with a plurality of groups.

[0018] An energy storage system comprising the outdoor photovoltaic energy storage device.

[0019] Compared with the prior art, the outdoor photovoltaic energy storage device has the beneficial effects that:

[0020] The outdoor photovoltaic energy storage device and the energy storage system can place the energy storage battery in the energy storage cabinet for protection, when the surface temperature of the energy storage cabinet is too high, the cooling liquid can be pumped into the cooling cavity on the side of the energy storage cabinet through the main controller and the circulating water pump, on one hand, the cooling cavity on the side of the energy storage cabinet can reduce the heat transfer, and on the other hand, the cooling liquid in the cooling cavity can further reduce the temperature of the surface of the energy storage cabinet, thereby improving the protection of the energy storage battery and avoiding the high temperature in the energy storage cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Schematic view of the device bottom liquid storage tank buried in the soil;

[0022] Figure 2 Schematic view of the device;

[0023] Figure 3 Schematic view of the device after the liquid storage tank is removed;

[0024] Figure 4 Schematic view of the device after the section is inclined;

[0025] Figure 5 Schematic view of the device; Figure 4 Schematic view of the device;

[0026] Figure 6 Schematic view of the device;

[0027] Figure 7 Schematic view of the device;

[0028] Figure 8 Schematic view of the device;

[0029] Figure 9 Schematic view of the device; Figure 8 Schematic view of the device;

[0030] Figure 10 Structure diagram of the sealing baffle structure of the present application;

[0031] Figure 11 Structure diagram of the first sealing plate structure of the present application;

[0032] Figure 12 Local sectional view of the first sealing plate structure of the present application;

[0033] Figure 13 Structure diagram of the energy storage cabinet when tilted of the present application;

[0034] Figure 14 Structure diagram of Figure 13 Enlarged structure diagram at C;

[0035] Figure 15 Side view of the energy storage cabinet of the present application;

[0036] Figure 16 Sectional view of the present application;

[0037] Figure 17 Structure diagram of Figure 16 Enlarged structure diagram at D;

[0038] Figure 18 Structure diagram of the traction plate of the present application.

[0039] In the figure: 1, energy storage cabinet; 2, support seat; 3, energy storage battery; 4, cooling cavity; 5, circulating water pump; 6, electric push rod; 7, support plate; 8, liquid storage tank; 9, positioning groove; 10, bottom plate; 11, first sealing plate; 12, protective door; 13, main controller; 14, sealing baffle; 15, temperature sensor; 16, water level sensor; 17, mounting bracket; 18, photovoltaic panel; 19, protective frame; 20, water pipe; 21, water delivery pipe; 22, positioning bracket; 23, water outlet; 24, positioning clamping groove; 25, fixing seat; 26, traction plate; 27, first cleaning plate; 28, second cleaning plate; 29, rubber pad; 30, moving groove; 31, guide rod; 32, limiting spring; 33, positioning rod; 34, moving hole; 35, positioning block; 36, metal gasket; 37, placing groove; 38, positioning spring; 39, storage groove; 40, hinge; 41, second sealing plate; 42, auxiliary photovoltaic panel; 43, water outlet. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme of the present application, and the advantages are clearer, more complete, and more clearly understood, the embodiments of the present application are further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all embodiments, and are used to explain the embodiments of the present application, and are not used to limit the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0041] Embodiment one: please refer to Figures 1-15 The present application provides a technical scheme: an outdoor photovoltaic energy storage device, comprising: an energy storage cabinet 1, the inner side of the energy storage cabinet 1 is provided with a support seat 2, the surface of the support seat 2 is provided with an energy storage battery 3, the side of the energy storage cabinet 1 is provided with a cooling cavity 4, the bottom of the support seat 2 is provided with a circulating water pump 5, the outer side of the energy storage cabinet 1 is provided with a support plate 7; a liquid storage tank 8, the surface of the liquid storage tank 8 is provided with a positioning groove 9; an electric push rod 6, the lifting end of the electric push rod 6 is provided with a bottom plate 10, the surface of the bottom plate 10 is provided with a first sealing plate 11; a protective door 12, the inside of the protective door 12 is provided with a main controller 13, the main controller 13 is electrically connected with the circulating water pump 5 and the electric push rod 6; a sealing baffle 14, the inner side of the sealing baffle 14 is provided with a temperature sensor 15 and a water level sensor 16;

[0042] When in use, the energy storage battery 3 can be placed inside the energy storage cabinet 1 for protection, when the surface temperature of the energy storage cabinet 1 is too high, first, the main controller 13 can cooperate with the circulating water pump 5 to draw the cooling liquid into the cooling cavity 4 opened on the side of the energy storage cabinet 1, on the one hand, the cooling cavity 4 opened on the side of the energy storage cabinet 1 can be used to reduce the transmission of heat, on the other hand, the temperature of the surface of the energy storage cabinet 1 can be further reduced by injecting cooling liquid into the cooling cavity 4, thereby improving the protection of the energy storage battery 3 and avoiding the temperature inside the energy storage cabinet 1 being too high.

[0043] In addition, in order to facilitate the maintenance of the equipment, a storage groove 39 is opened on the side of the energy storage cabinet 1, the second sealing plate 41 is connected to the storage groove 39 by means of a hinge 40, the auxiliary photovoltaic panel 42 is placed in the storage groove 39, and a drain 43 is opened on the surface of the storage groove 39;

[0044] When the outdoor photovoltaic panel 18 is damaged, the first sealing plate 11 can be rotated in cooperation with the hinge 40 to make the second sealing plate 41 lose the sealing of the storage groove 39, then the auxiliary photovoltaic panel 42 can be taken out from the storage groove 39, and the damaged photovoltaic panel 18 can be replaced to facilitate the normal operation of the energy storage cabinet 1, the second sealing plate 41 is fixed by means of a lock, and the setting of the drain 43 avoids the problem of water accumulation in the storage groove 39 affecting the storage of the auxiliary photovoltaic panel 42.

[0045] The embodiment two is based on the embodiment one, and the cooling cavity 4 is arranged for conveniently cooling the energy storage cabinet 1, the electric push rod 6 is fixedly connected to the bottom of the support base 2, the energy storage battery 3 is installed on the surface of the support base 2, the support base 2 is provided with the protection frame 19, the protection frame 19 is in the shape of an L-shaped plate structure, the input end of the circulating water pump 5 is provided with the water pipe 20, one end of the water pipe 20 is inserted into the liquid storage tank 8, the output end of the circulating water pump 5 is provided with the water delivery pipe 21, one end of the water delivery pipe 21 is inserted into the cooling cavity 4, the cooling cavity 4 is provided with the positioning frame 22, the water delivery pipe 21 is fixedly connected to the positioning frame 22, the protection door 12 seals and covers the side of the cooling cavity 4, the temperature sensor 15 and the water level sensor 16 are electrically connected to the main controller 13, the bottom of the cooling cavity 4 is provided with the water outlet 23, the side of the cooling cavity 4 is provided with the positioning clamping groove 24, the cooling cavity 4 is provided with the fixing seat 25, the temperature sensor 15 and the water level sensor 16 are fixedly connected to the side of the protection door 12, the surface of the energy storage cabinet 1 is provided with the mounting frame 17, the surface of the mounting frame 17 is provided with the photovoltaic panel 18, the photovoltaic panel 18 is electrically connected to the main controller 13, the electric push rod 6 and the circulating water pump 5, the support plate 7 is fixedly connected to the outer side of the energy storage cabinet 1, the bottom of the support plate 7 is provided with the positioning block 35, the positioning block 35 is in the shape of a square plate structure, the positioning block 35 is inserted into the positioning groove 9, the liquid storage tank 8 is buried in the ground, the lifting end of the electric push rod 6 is inserted into the liquid storage tank 8;

[0046] In use, first, the liquid storage tank 8 is buried in the ground, then the positioning block 35 arranged at the bottom of the support plate 7 is inserted into the positioning groove 9 and fixed by the positioning bolt, then the energy storage battery 3 arranged in the energy storage cabinet 1 can be used to store the electric energy converted by the photovoltaic panel, when the temperature of the energy storage cabinet 1 is too high due to long-time sunlight, the main controller 13 starts the circulating water pump 5 to input the cooling liquid in the liquid storage tank 8 into the cooling cavity 4 through the cooperation of the water pipe 20 and the water delivery pipe 21 when the temperature sensor 15 senses that the temperature is too high, the water level sensor 16 stops the circulating water pump 5 from running when the cooling liquid in the cooling cavity 4 reaches a certain height, so that the problem of the internal temperature of the energy storage cabinet 1 can be solved by injecting the cooling liquid, and the temperature of the energy storage cabinet 1 is prevented from being too high, when the air temperature decreases at night, the main controller 13 controls the electric push rod 6 to make the first sealing plate 11 separate from the water outlet 23, so that the cooling liquid can be re-injected into the liquid storage tank 8, because the liquid storage tank 8 is buried in the ground, the temperature of the cooling liquid can be reduced by the low temperature in the ground, so that the photovoltaic panel 18 can be used conveniently in the daytime, and the main controller 13, the circulating water pump 5 and the electric push rod 6 can be powered by the photovoltaic panel 18.

[0047] To facilitate the cleaning of dirt adhering to the side wall of the cooling cavity 4, a first cleaning plate 27 and a second cleaning plate 28 are provided. A traction plate 26 is provided on the inner side of the fixing base 25. The traction plate 26 has an overall "L" shaped plate structure. There are two sets of traction plates 26. The two sets of traction plates 26 are symmetrically distributed about the center line of the long side of the side of the fixing base 25. The two sets of traction plates 26 are respectively provided with the first cleaning plate 27 and the second cleaning plate 28. Rubber pads 29 are provided on the sides of the first cleaning plate 27 and the second cleaning plate 28. The rubber pads 29 are in contact with the side of the cooling cavity 4.

[0048] When it is necessary to clean the side wall of the cooling cavity 4, the first cleaning plate 27 and the second cleaning plate 28 can be moved by pulling the fixed seat 25 and using the two sets of traction plates 26. The fixed seat 25, together with the two sets of traction plates 26, can easily support the first cleaning plate 27 and the second cleaning plate 28, so that the rubber pads 29 set on the side of the first cleaning plate 27 and the second cleaning plate 28 can contact the side wall of the cooling cavity 4. After the first cleaning plate 27 and the second cleaning plate 28 are in contact, they are the same as the outer contour of the cooling cavity 4. Therefore, when the first cleaning plate 27 and the second cleaning plate 28 are pulled out, the dirt attached to the side wall of the cooling cavity 4 can be scraped off by the rubber pads 29.

[0049] Example 3: Based on Example 2, in order to facilitate the fixing of the first cleaning plate 27 and the second cleaning plate 28, a positioning rod 33 is provided. A moving groove 30 is provided on the side of the fixing base 25. A guide rod 31 is provided on the end face of the moving groove 30. A limiting spring 32 and a positioning rod 33 are sleeved on the surface of the guide rod 31. One end of the positioning rod 33 is inserted into the positioning slot 24. A moving hole 34 is provided on the end face of the positioning rod 33. The positioning rod 33 is slidably connected to the guide rod 31 through the moving hole 34. One end of the limiting spring 32 is fixedly connected to the end face of the positioning rod 33, and the other end of the limiting spring 32 is fixedly connected to the end face of the moving groove 30.

[0050] When it is necessary to fix the first cleaning plate 27 and the second cleaning plate 28 during use, first pull the positioning rod 33 to compress the limiting spring 32, and then insert the first cleaning plate 27 and the second cleaning plate 28 into the cooling cavity 4. This will release the positioning rod 33, allowing it to reset using the elastic force of the limiting spring 32. One end of the positioning rod 33 will then be inserted into the positioning slot 24, thus fixing the first cleaning plate 27 and the second cleaning plate 28. The guide rod 31 is designed to prevent the positioning rod 33 from shifting and to guide the displacement of the guide rod 31.

[0051] To facilitate sealing of the outlet 23, a first sealing plate 11 is provided. The base plate 10 is fixedly connected to the lifting end of the electric push rod 6. The base plate 10 has a square plate structure. The first sealing plate 11 is fixedly connected to the surface of the base plate 10. The first sealing plate 11 has a square plate structure and is inserted into the outlet 23. A metal gasket 36 is provided on the side of the first sealing plate 11. The metal gasket 36 is elastic. One end of the metal gasket 36 is fixedly connected to the side of the first sealing plate 11. A placement groove 37 is opened on the side of the first sealing plate 11. A positioning spring 38 is provided on the end face of the placement groove 37. One end of the positioning spring 38 is fixedly connected to the end face of the placement groove 37, and the other end of the positioning spring 38 is fixedly connected to the inner side of the metal gasket 36. The metal gasket 36 has a square plate structure and multiple sets of metal gaskets 36 are provided. Multiple sets of metal gaskets 36 are arranged around the first sealing plate 11.

[0052] When it is necessary to seal the outlet 23, the electric push rod 6 can be activated to move the first sealing plate 11 upward in conjunction with the base plate 10, so that the first sealing plate 11 can be inserted into the outlet 23. After the first sealing plate 11 is inserted into the outlet 23, it can squeeze the metal gasket 36, thereby increasing the sealing effect of the first sealing plate 11 on the outlet 23. The elasticity of the positioning spring 38 prevents the metal gasket 36 from sticking tightly to the side of the first sealing plate 11 after being squeezed for a long time. When the first sealing plate 11 is pulled out from the outlet 23, the elasticity of the positioning spring 38 can be used to make the metal gasket 36 spring up, so that the metal gasket 36 is always in close contact with the side of the outlet 23.

[0053] In actual use, the energy storage battery 3 can be placed inside the energy storage cabinet 1 for protection. When the surface temperature of the energy storage cabinet 1 is too high, the main controller 13, in conjunction with the circulating water pump 5, can first pump coolant into the cooling chamber 4 opened on the side of the energy storage cabinet 1. On the one hand, the cooling chamber 4 opened on the side of the energy storage cabinet 1 can reduce heat transfer; on the other hand, injecting coolant into the cooling chamber 4 can further reduce the surface temperature of the energy storage cabinet 1, thereby improving the protection of the energy storage battery 3 and preventing the internal temperature of the energy storage cabinet 1 from becoming too high. When it is necessary to cool the side of the cooling chamber 4... When cleaning the wall, the first cleaning plate 27 and the second cleaning plate 28 can be moved by pulling the fixed seat 25 and using the two sets of traction plates 26. The fixed seat 25, together with the two sets of traction plates 26, can easily support the first cleaning plate 27 and the second cleaning plate 28, so that the rubber pads 29 set on the sides of the first cleaning plate 27 and the second cleaning plate 28 can contact the side wall of the cooling cavity 4. Thus, when the first cleaning plate 27 and the second cleaning plate 28 are pulled out, the dirt attached to the side wall of the cooling cavity 4 can be scraped off using the rubber pads 29.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor photovoltaic energy storage device, comprising: The utility model provides an energy storage cabinet (1), and the inner side of energy storage cabinet (1) is provided with support seat (2), and the surface of support seat (2) is provided with energy storage battery (3), it is characterized by: the side of energy storage cabinet (1) is provided with cooling cavity (4), and the bottom of support seat (2) is provided with circulating water pump (5), and the outer side of energy storage cabinet (1) is provided with support plate (7); The surface of the liquid storage tank (8) is provided with a positioning groove (9), and the liquid storage tank (8) is embedded in the ground. The lifting end of the electric push rod (6) is provided with a bottom plate (10), and the surface of the bottom plate (10) is provided with a first sealing plate (11). The protective door (12) is provided with a main controller (13) inside, and the main controller (13) is electrically connected with the circulating water pump (5) and the electric push rod (6). The inner side of the sealing baffle (14) is provided with a temperature sensor (15) and a water level sensor (16). The protective door (12) seals and covers the side of the cooling cavity (4), the temperature sensor (15) and the water level sensor (16) are electrically connected with the main controller (13), the bottom of the cooling cavity (4) is provided with a water outlet (23), the side of the cooling cavity (4) is provided with a positioning clamping groove (24), the cooling cavity (4) is provided with a fixing seat (25), the temperature sensor (15) and the water level sensor (16) are fixedly connected to the side of the protective door (12); The side of the fixing seat (25) is provided with a moving groove (30), the end surface of the moving groove (30) is provided with a guide rod (31), the surface of the guide rod (31) is sleeved with a limiting spring (32) and a positioning rod (33), one end of the positioning rod (33) is inserted into the positioning clamping groove (24), the end surface of the positioning rod (33) is provided with a moving hole (34), the positioning rod (33) is slidably connected with the guide rod (31) through the moving hole (34), one end of the limiting spring (32) is fixedly connected to the end surface of the positioning rod (33), and the other end of the limiting spring (32) is fixedly connected to the end surface of the moving groove (30).

2. An outdoor photovoltaic energy storage device according to claim 1, characterized in that: The surface of the energy storage cabinet (1) is provided with a mounting bracket (17), the surface of the mounting bracket (17) is provided with a photovoltaic panel (18), the photovoltaic panel (18) is electrically connected with the main controller (13), the electric push rod (6) and the circulating water pump (5), the support plate (7) is fixedly connected to the outer side of the energy storage cabinet (1), the side of the energy storage cabinet (1) is provided with a storage groove (39), the second sealing plate (41) is connected to the side of the storage groove (39) through a hinge (40), the auxiliary photovoltaic panel (42) is placed in the storage groove (39), and the surface of the storage groove (39) is provided with a drain (43).

3. The outdoor photovoltaic energy storage device of claim 1, wherein: The electric push rod (6) is fixedly connected at the bottom of the support base (2), the energy storage battery (3) is installed on the surface of the support base (2), the bottom of the support base (2) is provided with a protection frame (19), the protection frame (19) is in the form of an L-shaped plate structure, the input end of the circulating water pump (5) is sleeved with a water pipe (20), one end of the water pipe (20) is inserted into the liquid storage tank (8), the output end of the circulating water pump (5) is provided with a water delivery pipe (21), one end of the water delivery pipe (21) is inserted into the cooling cavity (4), the cooling cavity (4) is provided with a positioning frame (22), and the water delivery pipe (21) is fixedly connected in the positioning frame (22).

4. The outdoor photovoltaic energy storage device of claim 1, wherein: The bottom of the support plate (7) is provided with a positioning block (35) in the form of a square plate structure, the positioning block (35) is inserted into the positioning groove (9), and the lifting end of the electric push rod (6) is inserted into the liquid storage tank (8).

5. The outdoor photovoltaic energy storage device of claim 1, wherein: The inner side of the fixed seat (25) is provided with a traction plate (26), the traction plate (26) is in the form of an L-shaped plate structure, the traction plate (26) is provided with two groups, the two groups of traction plates (26) are symmetrically distributed about the center line of the long side of the fixed seat (25), the two groups of traction plates (26) are respectively provided with a first cleaning plate (27) and a second cleaning plate (28), the side surfaces of the first cleaning plate (27) and the second cleaning plate (28) are provided with rubber pads (29), and the rubber pads (29) are in contact with the side surfaces of the cooling cavity (4).

6. The outdoor photovoltaic energy storage device of claim 1, wherein: The bottom plate (10) is fixedly connected to the lifting end of the electric push rod (6), the bottom plate (10) is in the form of a square plate structure, the first sealing plate (11) is fixedly connected to the surface of the bottom plate (10), the first sealing plate (11) is in the form of a square plate structure, and the first sealing plate (11) is inserted into the water outlet (23).

7. The outdoor photovoltaic energy storage device of claim 1, wherein: The side surface of the first sealing plate (11) is provided with a metal gasket (36), the metal gasket (36) has elasticity, one end of the metal gasket (36) is fixedly connected to the side surface of the first sealing plate (11), the side surface of the first sealing plate (11) is provided with a placing groove (37), the end surface of the placing groove (37) is provided with a positioning spring (38), one end of the positioning spring (38) is fixedly connected to the end surface of the placing groove (37), the other end of the positioning spring (38) is fixedly connected to the inner side of the metal gasket (36), the metal gasket (36) is in the form of a square plate structure, and a plurality of metal gaskets (36) are arranged around the first sealing plate (11).

8. An energy storage system characterized by: The outdoor photovoltaic energy storage equipment comprises the outdoor photovoltaic energy storage equipment according to any one of claims 1-7.

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