Energy storage system

Abstract

The utility model discloses an energy storage system, and the system comprises an energy storage box which is provided with a first cavity and a second cavity, the first cavity is used for arranging an energy storage part, and the first cavity and the second cavity are communicated through a communication port; the air cooler is arranged in the second cavity, the air cooler is provided with an air exhaust mechanism, and the air exhaust mechanism can exhaust air in the second cavity; and the cover plate assembly is mounted on the energy storage box and is used for shielding the communication port so as to selectively communicate the first cavity with the second cavity. When the cover plate assembly is opened, the first cavity communicates with the second cavity, and harmful gas and smoke in the first cavity can enter the second cavity from the first cavity through the communicating opening and are exhausted to the outer side of the energy storage box under the action of the exhaust structure, so that heat is prevented from being accumulated in the energy storage box, and the risk of fire occurrence is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage devices, and more particularly to an energy storage system. Background Art

[0002] Currently, the energy storage system stores electrical energy through batteries. During the operation of the energy storage system, there are potential fire risks, such as battery failures, overcharging / discharging, short circuits, etc. Since energy storage systems are usually arranged in large concentrations, if a fire occurs, the fire is likely to spread rapidly.

[0003] In related technologies, a fire-fighting exhaust system is set in the energy storage system to improve the safety of the energy storage system. However, if the fire-fighting exhaust system fails, it cannot meet the exhaust air volume requirements of the energy storage system in the thermal runaway state. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present application is to provide an energy storage system with good explosion-proof performance and high safety.

[0005] The energy storage system according to an embodiment of the present application includes: an energy storage box having a first chamber and a second chamber, the first chamber being used for arranging energy storage elements, and the first chamber and the second chamber being connected through a communication port; an air cooler provided in the second chamber, and the air cooler having an exhaust mechanism for exhausting the gas in the second chamber; and a cover plate assembly installed on the energy storage box and used for covering the communication port to selectively connect the first chamber and the second chamber.

[0006] In the present application, when the cover plate assembly is opened, the first chamber is connected to the second chamber, and the harmful gases and smoke in the first chamber can enter the second chamber from the first chamber through the communication port and be exhausted to the outside of the energy storage box under the action of the exhaust structure, so as to prevent heat from accumulating in the energy storage box and reduce the risk of fire occurrence.

[0007] In some embodiments of the present application, the cover plate assembly includes: a cover plate that can cover the communication port; a driving part installed on the energy storage box and connected to the cover plate, and the driving part is used to drive the cover plate to open or close the communication port.

[0008] In some embodiments of the present application, the energy storage box is further provided with an annular boss that surrounds the communication port in the circumferential direction, and the cover plate can be covered on the annular boss to close the communication port.

[0009] In some embodiments of the present application, a seal is provided on a side of the annular boss opposite to the cover plate, and the seal is adapted to form a seal between the cover plate and the annular boss when the cover plate is in the closed position.

[0010] In some embodiments of the present application, the cover plate is formed with a first insertion groove that opens towards the annular boss, and at least a part of the annular boss is in insertion fit with the first insertion groove; and / or, the annular boss is formed with a second insertion groove that opens towards the cover plate, and the cover plate is in insertion fit with the second insertion groove.

[0011] In some embodiments of the present application, the driving part includes a first driving assembly, the first driving assembly is connected to the cover plate, and is used to drive the cover plate to translate in a first direction away from the communication port.

[0012] In some embodiments of the present application, the driving part further includes a second driving assembly, the second driving assembly is fixed to the energy storage box, and is connected to the first driving assembly, the second driving assembly is used to drive the first driving assembly to translate in a second direction, and the first direction and the second direction are perpendicularly arranged.

[0013] In some embodiments of the present application, the driving part includes: a first driving seat, the first driving seat is fixed to the energy storage box, and the first driving seat can be used to adsorb the cover plate and hold the cover plate in the closed position of closing the communication port; an elastic member, the elastic member is elastically supported between the first driving seat and the cover plate, and the elastic member stores energy when the cover plate is in the closed position, and has a movement tendency to drive the cover plate to open.

[0014] In some embodiments of the present application, the cover plate is provided with a threaded hole, the driving part includes a second driving seat, the second driving seat is fixed to the energy storage box, the second driving seat is provided with a driving screw, the driving screw is in threaded fit with the threaded hole, and the axial direction of the driving screw is parallel to the opening direction of the communication port.

[0015] In some embodiments of the present application, the driving part includes: a third driving seat, the third driving seat is fixed to the energy storage box; a driving rod, the driving rod is telescopically arranged in the third driving seat in a first direction, and one end of the driving rod is connected to the cover plate.

[0016] In some embodiments of the present application, the second cavity is provided at the top of the first cavity.

[0017] In some embodiments of the present application, the exhaust mechanism is configured as a fan assembly. The fan assembly is disposed in the energy storage box, and the air inlet of the fan assembly is communicated with the second chamber, and the air outlet of the fan assembly is communicated with the outside of the energy storage box.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic structural diagram of an energy storage system according to an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 1 ;

[0022] Figure 3 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 2 ;

[0023] Figure 4 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 3 ;

[0024] Figure 5 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 4 ;

[0025] Figure 6 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 5 ;

[0026] Figure 7 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 6 ;

[0027] Figure 8 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 7 ;

[0028] Figure 9 is a schematic diagram of the cooperation between a cover plate assembly and an energy storage box according to an embodiment of the present application Figure 8 ;

[0029] Figure 10Schematic diagram of the cooperation between the cover plate assembly and the energy storage box according to an embodiment of the present application Figure 9 ;

[0030] Figure 11 Cross-sectional schematic diagram of the cover plate assembly and the annular boss according to an embodiment of the present application

[0031] Reference numerals:

[0032] Energy storage system 100;

[0033] Energy storage box 1; first chamber 101; second chamber 102; communication port 103; annular boss 11; second insertion slot 111; second annular protrusion 112; third annular protrusion 113; seal 12; partition structure 13;

[0034] Air cooler 2; exhaust mechanism 21;

[0035] Cover plate 31; first insertion slot 311; cover plate body 312; first annular protrusion 313; flanging 314; driving part 32; first driving assembly 321; first push rod 3211; first fixing seat 3212; second driving assembly 322; second push rod 3221; second fixing seat 3222; first driving seat 323; elastic member 324; second driving seat 325; driving screw 326; third driving seat 327; driving rod 328. Detailed implementation manners

[0036] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0038] Next, refer to Figures 1 - 11 Describe the energy storage system 100 according to an embodiment of the present application. The energy storage system 100 has an energy storage function and is applied to technical fields such as new energy power generation and power grid energy storage.

[0039] The energy storage system 100 according to the present application includes: an energy storage box 1, an air cooler 2, and a cover plate assembly.

[0040] The energy storage box 1 has a first cavity 101 and a second cavity 102. The first cavity 101 is used for arranging energy storage elements. The first cavity 101 and the second cavity 102 are communicated through a communication port 103. The air cooler 2 is arranged in the second cavity 102, and the air cooler 2 has an exhaust mechanism 21. The exhaust mechanism 21 can discharge the gas in the second cavity 102. The cover plate assembly is installed on the energy storage box 1 and is used to block the communication port 103 to selectively communicate the first cavity 101 and the second cavity 102.

[0041] Among them, the energy storage element can be constructed as an energy storage device such as a battery to store electric energy through the energy storage element, so that the energy storage element has a charge and discharge function. At the same time, the energy storage element is arranged in the first cavity 101 to store the energy storage element through the first cavity 101.

[0042] Furthermore, the air cooler 2 is arranged in the second cavity 102, and the air cooler 2 can realize the heat exchange function of the energy storage system 100. For example, the temperature of the energy storage element can be reduced through the air cooler 2 to prevent the environmental temperature in the energy storage element or the first cavity 101 from being too high.

[0043] It can be understood that the air cooler 2 has a heat exchanger and an exhaust mechanism 21. The heat exchanger can be used to exchange heat with the energy storage element in the energy storage system 100, and the air flow rate at the heat exchanger can be increased through the exhaust mechanism 21 to improve the heat exchange efficiency of the air cooler 2. Among them, the exhaust mechanism 21 can discharge the gas in the second cavity 102 to discharge the heated air out of the energy storage box 1 and realize the heat exchange function between the air cooler 2 and the outside world.

[0044] Combined Figure 2 and Figure 3 , the first cavity 101 and the second cavity 102 can be separated and formed by a partition structure 13. The communication port 103 for communicating the first cavity 101 and the second cavity 102 can be formed on the partition structure 13, and the cover plate assembly is arranged at the communication port 103. The communication port 103 is opened or closed through the cover plate assembly to selectively communicate the first cavity 101 and the second cavity 102.

[0045] It should be noted that currently, the energy storage system 100 stores electric energy through batteries. During the operation of the energy storage system 100, there are potential fire risks, such as battery failures, overcharging and discharging, short circuits, etc. Since the energy storage systems 100 are usually arranged in large quantities and concentratedly, if a fire occurs, the fire is likely to spread quickly. In the related art, a fire exhaust system is set in the energy storage system 100 to improve the safety of the energy storage system 100. However, if the fire exhaust system fails, the air exhaust volume requirement of the energy storage system 100 in the thermal runaway state cannot be met.

[0046] It is understandable that the thermal runaway of the energy storage system 100 mainly occurs at the energy storage components. When the energy storage components are in a state of thermal runaway, harmful gases, smoke, etc. will be generated. In this application, when the cover assembly is opened, the first chamber 101 communicates with the second chamber 102. The harmful gases and smoke in the first chamber 101 can enter the second chamber 102 from the first chamber 101 through the communication port 103 and are discharged to the outside of the energy storage box 1 under the action of the exhaust structure, so as to prevent heat from accumulating in the energy storage box 1 and reduce the risk of fire occurrence.

[0047] Specifically, when combustible gas is generated in the energy storage box 1, the cover assembly can be controlled to open to communicate the first chamber 101 and the second chamber 102, and the gas in the energy storage box 1 is discharged through the exhaust mechanism 21. Thus, the concentration of combustible gas in the container can be reduced, and the harmful gases and smoke generated by combustion in the energy storage box 1 can also be discharged through the exhaust mechanism 21 to keep the ventilation in the energy storage system 100 good, so as to reduce the risk of further expansion of the fire (such as problems like deflagration). That is to say, in the energy storage system 100 of this application, the exhaust mechanism 21 of the air cooler 2 can be used to discharge the gas in the energy storage box 1. Even if the fire exhaust system in the energy storage system 100 fails, the exhaust demand of the energy storage system 100 can be met. When the fire exhaust system does not fail, the exhaust air volume of the energy storage system 100 can be further increased through the exhaust mechanism 21 to improve the exhaust effect of the energy storage system 100.

[0048] It should be noted that the air volume of the exhaust mechanism 21 in the air cooler 2 can generally reach more than 10000 m 3 / h, which can meet the use requirements as the fire exhaust mechanism of the energy storage system 100 and can quickly reduce the concentration of combustible gas in the energy storage box 1. At the same time, if deflagration occurs in the energy storage system 100, the communication port 103 can be used as a deflagration vent to reduce the harm caused by the explosion at the energy storage box 1.

[0049] Furthermore, in the first chamber 101, structures such as batteries, liquid cooling pipelines, and mounting brackets can be provided. And when combustible gas is generated in the energy storage system 100, the combustible gas will first enter the first chamber 101. When the first chamber 101 and the second chamber 102 are communicated through the communication port 103 and the exhaust mechanism 21 works, the air in the first chamber 101 can be sucked to the communication port 103 and further discharged to the outside of the energy storage box 1.

[0050] Combined with Figure 2 、 Figure 3 and Figure 4As shown, in some embodiments of the present application, the cover plate assembly includes: a cover plate 31 and a driving portion 32. The cover plate 31 can block the communication port 103. The driving portion 32 is installed on the energy storage box 1, and the driving portion 32 is connected to the cover plate 31, and the driving portion 32 is used to drive the cover plate 31 to open or close the communication port 103.

[0051] Thus, through the cooperation of the driving portion 32 and the cover plate 31, it is possible to actively drive the cover plate 31 to open or close, so as to actively open the cover plate 31 at the initial stage of thermal runaway of the energy storage system 100, improve the exhaust effect of the energy storage system 100, quickly discharge the gas (flammable gas, smoke, harmful gas, etc.) in the energy storage box 1, and reduce the risk of fire occurrence.

[0052] As Figure 3 and Figure 4 shown, in a further embodiment of the present application, the energy storage box 1 is further provided with an annular boss 11. The annular boss 11 is arranged around the communication port 103 in the circumferential direction, and the cover plate 31 can be covered on the annular boss 11 to close the communication port 103.

[0053] Combined with Figure 2 and Figure 3 shown, when the cover plate 31 is covered on the annular boss 11, it can block the communication port 103 to close the communication port 103. Among them, the annular boss 11 is arranged around the communication port 103 in the circumferential direction. Through the annular boss 11, the structural strength at the communication port 103 can be improved to prevent deformation at the communication port 103 caused by the pressing of the cover plate 31. It can be understood that the second cavity 102 is communicated with the outside of the energy storage box 1. Therefore, there is a risk that pollutants (such as rainwater, dust, etc.) outside the energy storage box 1 enter the energy storage box 1. Thus, when it is not necessary to discharge the gas in the first cavity 101 through the exhaust mechanism 21, the communication port 103 can be blocked by the cover plate 31 to prevent pollutants in the second cavity 102 from further entering the first cavity 101 through the communication port 103, playing a good protective role for the equipment in the first cavity 101.

[0054] As Figure 11 shown, in some embodiments of the present application, a sealing member 12 is provided on the side of the annular boss 11 opposite to the cover plate 31. The sealing member 12 can form a seal between the cover plate 31 and the annular boss 11 when the cover plate 31 is in the closed position, so as to improve the sealing effect at the communication port 103 and prevent pollutants in the second cavity 102 from entering the first cavity 101.

[0055] In a specific embodiment of the present application, the sealing member 12 is configured as a sealing ring, and the shape of the sealing ring is adapted to the shape of the annular boss 11. When the cover plate 31 is covered on the annular boss 11, the sealing ring can be clamped between the cover plate 31 and the annular boss 11, thereby improving the sealing reliability between the cover plate 31 and the annular boss 11.

[0056] It should be noted that the seal 12 can be constructed as a rubber part, a silicone rubber part, etc., that is, the material of the seal 12 includes but is not limited to materials such as nitrile rubber, fluororubber, silicone rubber, and natural rubber.

[0057] As Figure 11 shown, in some embodiments of the present application, the cover plate 31 is formed with a first insertion slot 311 that opens to one side of the annular boss 11, and at least a part of the annular boss 11 is inserted and matched with the first insertion slot 311, so that the cover plate 31 can be inserted and fixed with the annular boss 11. It can be understood that the fitting method of inserting the annular boss 11 into the first insertion slot 311 can form a labyrinth structure between the annular boss 11 and the cover plate 31, thereby increasing the difficulty for pollutants outside the cover plate 31 to enter the communication port 103 through the gap between the cover plate 31 and the annular boss 11, and improving the protection effect of the cover plate 31 on the communication port 103.

[0058] As Figure 11 shown, in some other embodiments of the present application, the annular boss 11 is formed with a second insertion slot 111 that opens to one side of the cover plate 31, and the cover plate 31 is inserted and matched with the second insertion slot 111. Thereby, the cover plate 31 can be positioned and matched with the annular boss 11, improving the fitting reliability between the cover plate 31 and the annular boss 11, and a labyrinth structure can be formed between the cover plate 31 and the annular boss 11 to improve the sealing effect between the cover plate 31 and the annular boss 11 and prevent rainwater from entering when the cover plate 31 is in the closed state.

[0059] Referring to Figure 11 , a second insertion slot 111 can be formed on the annular boss 11 while the first insertion slot 311 is formed on the cover plate 31, so as to further increase the complexity of the labyrinth structure formed between the cover plate 31 and the annular boss 11, and further improve the protection effect of the cover plate 31 on the communication port 103.

[0060] As Figure 11 shown, in some embodiments, the cover plate 31 includes a cover plate main body 312, the cover plate main body 312 is disposed opposite to the communication port 103 and is used to block the communication port 103. Among them, a first annular protrusion 313 is provided on the cover plate main body 312, the first annular protrusion 313 protrudes from the surface of the cover plate main body 312 opposite to the communication port 103 toward the side of the annular boss 11, and the first annular protrusion 313 can be inserted and matched with the second insertion slot 111.

[0061] Further, the cover plate main body 312 is further provided with a flanging 314 which extends from the edge of the cover plate main body 312 towards the side of the annular boss 11. When the cover plate 31 and the annular protrusion are covered and matched, the flanging 314 is covered on the circumferential outer side of the annular boss 11 to improve the matching reliability between the cover plate 31 and the annular boss 11. Among them, the flanging 314 and the first annular protrusion 313 are arranged at intervals and define the above-mentioned first insertion slot 311.

[0062] In some embodiments, the annular boss 11 is provided with a second annular protrusion 112 and a third annular protrusion 113. The third annular protrusion 113 is arranged around the second annular protrusion 112, and the above-mentioned second insertion slot 111 is formed between the second annular protrusion 112 and the third annular protrusion 113. The first annular protrusion 313 can be inserted and matched with the second insertion slot 111, and the third annular protrusion 113 is inserted and matched with the first insertion slot 311. Thus, by staggering the first annular protrusion 313, the second annular protrusion 112, the third annular protrusion 113 and the flanging 314, the cover plate 31 and the annular protrusion are buckled and matched, and a labyrinth structure is formed between the cover plate 31 and the annular protrusion, increasing the difficulty for pollutants to enter the communication port 103 through the gap between the cover plate 31 and the annular protrusion and improving the sealing effect between the cover plate 31 and the annular protrusion.

[0063] As Figure 2 shown, in some embodiments of the present application, the driving part 32 includes: a first driving component 321 and a second driving component 322.

[0064] Further combined with Figure 3 and Figure 4 , the first driving component 321 is connected to the cover plate 31 and is used to drive the cover plate 31 to translate in a first direction away from the communication port 103. The second driving component 322 is fixed to the energy storage box 1 and is connected to the first driving component 321. The second driving component 322 is used to drive the first driving component 321 to translate in a second direction, and the first direction and the second direction are perpendicular to each other. Thus, the cover plate 31 is adjusted to a position suitable for avoiding the communication port 103 through the driving actions in two directions to ensure the communication effect between the first cavity 101 and the second cavity 102.

[0065] Therefore, first, the first driving component 321 drives the cover plate 31 to move away from the communication port 103 to separate the cover plate 31 from the annular boss 11, and further, the second driving component 322 drives the cover plate 31 to translate to adjust the cover plate 31 to a position suitable for avoiding the communication port 103. By reducing the overlapping area between the communication port 103 and the cover plate 31 in the first direction, the communication port 103 is fully exposed.

[0066] Refer to Figure 3, the first driving component 321 includes a first push rod 3211 and a first fixing seat 3212. The first push rod 3211 is telescopically arranged at the first fixing seat 3212 along a first direction, and one end of the first push rod 3211 is connected to the cover plate 31. When the first push rod 3211 applies a driving force along the first direction to the cover plate 31 away from the communication port 103, the cover plate 31 can open the communication port 103, and the cover plate 31 and the communication port 103 are oppositely arranged in the first direction.

[0067] Referring to Figure 3 and Figure 4 , the second driving component 322 includes a second push rod 3221 and a second fixing seat 3222. The second push rod 3221 is telescopically arranged at the second fixing seat 3222 along a second direction, and one end of the second push rod 3221 is connected to the first fixing seat 3212 to drive the first fixing seat 3212 to move along the second direction through the second push rod 3221. When the second push rod 3221 applies a driving force along the second direction to the first fixing seat 3212, the first fixing seat 3212 can drive the cover plate 31 to move synchronously to reduce the corresponding area between the cover plate 31 and the communication port 103 in the first direction, fully expose the communication port 103, ensure the communication effect between the first chamber 101 and the second chamber 102, and facilitate the gas in the first chamber 101 to flow into the second chamber 102 through the communication port 103.

[0068] As Figure 5 and Figure 6 shown, in some embodiments of the present application, the driving part 32 includes: a first driving seat 323 and an elastic member 324.

[0069] The first driving seat 323 is fixed on the energy storage box 1, and the first driving seat 323 can be adsorbed and cooperated with the cover plate 31 to hold the cover plate 31 at the closed position of closing the communication port 103. The elastic member 324 is elastically supported between the first driving seat 323 and the cover plate 31, and the elastic member 324 is in an energy storage state when the cover plate 31 is in the closed position, so that the elastic member 324 has a movement tendency to drive the cover plate 31 to open. When the adsorption force applied by the first driving seat 323 to the cover plate 31 decreases, the elastic member 324 can drive the cover plate 31 away from the communication port 103, thereby opening the communication port 103.

[0070] Among them, the position of the first driving seat 323 is fixed, and the first driving seat 323 is provided with an adsorption part, which can adsorb and fix the cover plate 31 at the closed position. At the same time, since the elastic member 324 is in an energy storage state between the cover plate 31 and the first driving seat 323, the cover plate 31 has a tendency to move away from the communication port 103. When the adsorption part does not generate an adsorption force or the adsorption force is less than the driving force exerted by the elastic member 324 on the cover plate 31, the cover plate 31 opens the communication port 103 to communicate the first chamber 101 and the second chamber 102 through the communication port 103.

[0071] In some embodiments of the present application, the adsorption part is configured as an electromagnet. Correspondingly, at least part of the cover plate 31 can be made of a magnetic adsorption material (such as iron, cobalt, nickel, etc.). When the electromagnet is in an energized state, it can generate a magnetic force to cooperate with the cover plate 31 through the adsorption part to hold the cover plate 31 in the closed position.

[0072] As Figure 7 and Figure 8 shown, in some embodiments of the present application, the cover plate 31 is provided with a threaded hole, and the driving part 32 includes a second driving seat 325. The second driving seat 325 is fixed on the energy storage box 1 (such as the partition structure 13 described above), and the second driving seat 325 is provided with a driving screw 326. The driving screw 326 is in threaded cooperation with the threaded hole, and the axial direction of the driving screw 326 is parallel to the opening direction of the communication port 103. When the driving rod 328 rotates, it can drive the cover plate 31 to move away from the communication port 103 to open the communication port 103.

[0073] Referring to Figure 7 and Figure 8 shown, a driving motor is provided at the second driving seat 325, and the driving motor is power-connected to the driving screw 326. The driving motor can drive the driving screw 326 to rotate around its central axis to open or close the communication port 103 through the threaded cooperation between the driving screw 326 and the cover plate 31.

[0074] In a further embodiment of the present application, there are two second driving seats 325. The two second driving parts 32 are respectively arranged on both sides of the annular protrusion and are respectively in threaded cooperation with the cover plate 31 to prevent the cover plate 31 from rotating through the threaded cooperation between the two driving screws 326 and the cover plate 31, and improve the stability and reliability of the driving action of the cover plate 31.

[0075] As Figure 9 and Figure 10 shown, in some embodiments of the present application, the driving part 32 includes a third driving seat 327 and a driving rod 328.

[0076] Referring to Figure 9 and Figure 10, the third driving seat 327 is fixed on the energy storage tank 1. The driving rod 328 is telescopically arranged in the third driving seat 327 along the first direction, and one end of the driving rod 328 is connected to the cover plate 31. When the driving rod 328 extends out of the third driving seat 327, it can support the cover plate 31 to drive the cover plate 31 to move away from the side of the communication port 103, thereby opening the communication port 103 and connecting the first chamber 101 and the second chamber 102.

[0077] Referring to Figure 9 and Figure 10 , the third driving seat 327 can be fixed on the partition structure 13, and the third driving seat 327 is arranged in the first chamber 101 to reduce the space occupied by the third driving seat 327 in the second chamber 102 and reduce the number of components in the second chamber 102. Wherein, the driving rod 328 can pass through the partition structure 13 and be fixedly connected to the cover plate 31.

[0078] It should be noted that the arrangement position of the driving part 32 in the energy storage system 100 is not specifically limited and can be designed according to the arrangement position of the cover plate 31. Referring to Figures 2 - 10 , both the cover plate 31 and the annular protrusion can be arranged in the second chamber 102, so that the cover plate 31 can move away from the side of the first chamber 101, reducing the difficulty of opening the cover plate �. It can be understood that if the pressure in the first chamber 101 is relatively high, it is difficult for the cover plate 31 to move towards the side of the first chamber 101 to open the communication port 103, which is not convenient for driving the cover plate 31 to open the communication port 103.

[0079] Furthermore, referring to Figure 5 and Figure 6 , the first driving seat 323 is arranged in the first chamber 101 body, and the elastic member 324 can drive the cover plate 31 to move towards the upper side of the exhaust mechanism 21; referring to Figure 7 and Figure 8 , the second driving seat 325 is arranged on the partition structure 13, and the second driving seat 325 is arranged in the second chamber 102.

[0080] As Figure 1 shown, in some embodiments of the present application, the second chamber 102 is arranged on the top of the first chamber 101, so that the air cooler 2 can be arranged in the upper area of the energy storage tank 1, and the exhaust mechanism 21 can exhaust the gas upward.

[0081] It can be understood that the second chamber 102 is used to arrange the air cooler 2. Arranging the second chamber 102 on the top of the first chamber 101 can reduce the limitation of the exhaust mechanism 21 by the space size of the energy storage tank 1, and is convenient for setting the corresponding number of exhaust mechanisms 21 according to the exhaust requirements of the energy storage system 100.

[0082] It should be noted that in the related art, due to space size limitations, the size of the fan in the fire exhaust system of the energy storage system 100 is small, so a large number of fans need to be set. If some fans fail, the exhaust requirement of the energy storage system 100 cannot be met.

[0083] In the present application, the exhaust mechanism 21 in the air cooler 2 discharges combustible gases, harmful gases, etc. in the energy storage box 1 in the thermal runaway state, and the exhaust mechanism 21 of the air cooler 2 is arranged at the top position of the energy storage box 1, with little limitation by space size, which can ensure the exhaust effect of the gas in the energy storage box 1.

[0084] In some embodiments of the present application, the exhaust mechanism 21 is configured as a fan assembly. The fan assembly is provided in the energy storage box 1, and the air inlet of the fan assembly is communicated with the second chamber 102, and the air outlet of the fan assembly is communicated with the outside of the energy storage box 1, so that the gas in the second chamber 102 can be discharged through the fan assembly.

[0085] It can be understood that when the fan assembly operates, suction can be generated in the second chamber 102 to draw the gas (such as combustible gas, harmful gas, smoke, etc.) in the first chamber 101 through the communication port 103 into the second chamber 102, and further convey it to the outside of the energy storage box 1 to realize the gas discharge function.

[0086] Among them, the wind wheel in the fan assembly can be configured as an impeller, but is not limited to an impeller, and can also be a centrifugal wind wheel, a cross-flow wind wheel, etc.

[0087] In a further embodiment of the present application, multiple groups of fan assemblies are provided on the energy storage box 1 to further improve the exhaust capacity of the energy storage system 100.

[0088] In some preferred embodiments, the cover plate 31 is arranged at a position opposite to the air inlet of the fan assembly, so that the fan assembly can quickly discharge the gas flowing from the first chamber 101 into the second chamber 102 through the communication port 103.

[0089] Among them, multiple groups of cover plate assemblies can be provided in the energy storage box 1, and the driving actions of the multiple groups of cover plate assemblies are independent of each other and can be controlled separately to open the corresponding number of communication ports 103 according to the exhaust requirement. And even if some cover plate assemblies fail, the communication between the first chamber 101 and the second chamber 102 can be realized by opening the other cover plates 31 that do not fail, ensuring the operation reliability of the energy storage system 100.

[0090] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0091] In the description of the present application, the meaning of "multiple" is two or more.

[0092] In the description of the present application, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween.

[0093] In the description of the present application, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature.

[0094] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0095] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage system, characterized in that, Comprising: An energy storage box (1), the energy storage box (1) having a first chamber (101) and a second chamber (102), the first chamber (101) for arranging energy storage elements, and the first chamber (101) and the second chamber (102) being communicated through a communication port (103); An air cooler (2), the air cooler (2) being provided in the second chamber (102), and the air cooler (2) having an exhaust mechanism (21), the exhaust mechanism (21) being capable of exhausting the gas in the second chamber (102); A cover plate assembly, the cover plate assembly being installed on the energy storage box (1) and used for blocking the communication port (103) to selectively communicate the first chamber (101) and the second chamber (102).

2. The energy storage system according to claim 1, wherein The cover plate assembly includes: A cover plate (31), the cover plate (31) being capable of blocking the communication port (103); A driving part (32), the driving part (32) being installed on the energy storage box (1) and connected to the cover plate (31), the driving part (32) being used for driving the cover plate (31) to open or close the communication port (103).

3. The energy storage system according to claim 2, wherein The energy storage box (1) is further provided with an annular boss (11), the annular boss (11) being arranged around the communication port (103) in the circumferential direction, and the cover plate (31) being capable of covering the annular boss (11) and closing the communication port (103).

4. The energy storage system according to claim 3, characterized in that, A sealing member (12) is provided on one side of the annular boss (11) opposite to the cover plate (31), and the sealing member (12) is adapted to form a seal between the cover plate (31) and the annular boss (11) when the cover plate (31) is in the closed position.

5. The energy storage system according to claim 3, wherein The cover plate (31) is formed with a first insertion groove (311) opening towards the annular boss (11), and at least part of the annular boss (11) is in insertion fit with the first insertion groove (311); And / or, the annular boss (11) is formed with a second insertion groove (111) opening towards the cover plate (31), and the cover plate (31) is in insertion fit with the second insertion groove (111).

6. The energy storage system according to claim 2, wherein The driving part (32) includes a first driving assembly (321), the first driving assembly (321) being connected to the cover plate (31) and used for driving the cover plate (31) to translate in a first direction away from the communication port (103) side.

7. The energy storage system according to claim 6, characterized in that, The driving part (32) further includes a second driving assembly (322), the second driving assembly (322) being fixed to the energy storage box (1) and connected to the first driving assembly (321), the second driving assembly (322) being used for driving the first driving assembly (321) to translate in a second direction, and the first direction and the second direction being perpendicular to each other.

8. The energy storage system according to claim 2, wherein The driving part (32) includes: A first driving seat (323), the first driving seat (323) being fixed to the energy storage box (1), and the first driving seat (323) being capable of adsorbing the cover plate (31) and holding the cover plate (31) in the closed position of closing the communication port (103); An elastic member (324), the elastic member (324) is elastically supported between the first driving seat (323) and the cover plate (31), and the elastic member (324) stores energy when the cover plate (31) is in the closed position and has a tendency to drive the cover plate (31) to open.

9. The energy storage system according to claim 2, characterized in that, The cover plate (31) is provided with a threaded hole, the driving part (32) includes a second driving seat (325), the second driving seat (325) is fixed to the energy storage box (1), the second driving seat (325) is provided with a driving screw rod (326), the driving screw rod (326) is in threaded cooperation with the threaded hole, and the axial direction of the driving screw rod (326) is parallel to the opening direction of the communication port (103).

10. The energy storage system according to claim 2, wherein The driving part (32) includes: A third driving seat (327), the third driving seat (327) is fixed to the energy storage box (1); A driving rod (328), the driving rod (328) is telescopically arranged in the third driving seat (327) along a first direction, and one end of the driving rod (328) is connected to the cover plate (31).

11. The energy storage system according to claim 1, wherein The second cavity (102) is arranged at the top of the first cavity (101).

12. The energy storage system according to claim 1, characterized in that, The exhaust mechanism (21) is configured as a fan assembly, the fan assembly is arranged in the energy storage box (1), the air inlet of the fan assembly is communicated with the second cavity (102), and the air outlet of the fan assembly is communicated with the outside of the energy storage box (1).

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