Storage cabinet and energy storage device

Abstract

The application discloses a storage cabinet and an energy storage device, and relates to the technical field of fire fighting, wherein the storage cabinet comprises a cabinet body and at least one shell assembly, at least one first cavity is arranged in the cabinet body; the shell assembly is arranged in the first cavity, and the inside of the shell assembly is provided with a second cavity for mounting a battery structure; the first end of a first gas flow channel of the shell assembly is communicated with the first cavity, and the second end of the first gas flow channel is communicated with the outside of the cabinet body; a rotatable baffle structure is arranged in the first gas flow channel, and the baffle structure is used for shielding the first gas flow channel; the third end of a second gas flow channel is communicated with the first cavity, and the fourth end of the second gas flow channel is communicated with the inside of the shell assembly; the outer surface of a plugging piece is abutted against the inner wall surface of the second gas flow channel; the battery structure presses the first elastic piece to move the plugging piece towards the second end of the second gas flow channel and form a gap. The technical scheme provided by the application controls the oxygen concentration in the first cavity, so that the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and in particular to a storage cabinet and energy storage device. Background Technology

[0002] In recent years, lithium batteries have been widely used due to their high energy density, but they pose a risk of thermal runaway and fire during storage. Current technologies typically use sensors and fire sprinklers for fire control in lithium battery storage devices. However, the presence of lithium batteries and other flammable electronic components inside these devices results in low fire suppression efficiency. Summary of the Invention

[0003] The main objective of this invention is to provide a storage cabinet and energy storage device, addressing the problem of low fire extinguishing efficiency in existing lithium battery storage devices.

[0004] To achieve the above objectives, the present invention proposes a storage cabinet comprising a cabinet body and at least one shell assembly. The cabinet body contains at least one first cavity. The shell assembly is disposed within the first cavity, and a second cavity is located inside the shell assembly. The second cavity is used to mount a battery structure. The shell assembly has a first gas flow channel and a second gas flow channel. A first end of the first gas flow channel communicates with the first cavity, and a second end of the first gas flow channel communicates with the outside of the cabinet body. A rotatable baffle structure is provided within the first gas flow channel to block the first gas flow channel. A third end of the second gas flow channel communicates with the first cavity, and a fourth end of the second gas flow channel communicates with the inside of the shell assembly. A sealing member is provided within the second gas flow channel, and the outer surface of the sealing member abuts against the inner wall of the second gas flow channel. A first elastic member is connected to the side of the sealing member facing the fourth end of the second gas flow channel. The battery structure is used to press the first elastic member to move the sealing member toward the third end of the second gas flow channel, thus forming a gap between the outer surface of the sealing member and the inner wall of the second gas flow channel.

[0005] In one embodiment, the cross-sectional area of ​​the second gas flow channel gradually increases from the fourth end to the third end; and / or,

[0006] The second cavity has a mounting base on its inner wall, and the mounting base has a second gas flow channel. The first elastic member includes an arc-shaped part and an abutment part connected to each other. One end of the arc-shaped part is connected to the sealing member, and the inner arc side of the arc-shaped part faces the inner wall of the second cavity. The abutment part abuts against the inner wall of the second cavity. The battery structure is used to abut against the outer arc side of the arc-shaped part.

[0007] In one embodiment, the housing assembly includes a protective housing, the protective housing including a box body and a cabinet door, the box body having an opening, and the cabinet door being rotatably connected to the opening; a first gas flow channel passing through the cabinet door; and a second gas flow channel passing through the inner wall of the box body and the mounting base.

[0008] In one embodiment, a rolling element is provided at the opening of the box body, and the rolling element is rotatably connected to the inner wall of the box body; and / or,

[0009] The housing assembly further includes an ejection assembly, which includes a first guide rod, a second elastic element, and a movable element. The top and bottom walls of the housing are each provided with a mounting groove. The first guide rod is installed in the mounting groove. The second elastic element passes through the first guide rod. The movable element is movable along the first guide rod. One end of the second elastic element abuts against the inner wall of the mounting groove, and the other end abuts against the movable element. The movable element has an extension that extends towards the battery structure and abuts against the side of the battery structure.

[0010] In one embodiment, the system further includes a fire extinguishing assembly. The cabinet also includes a third cavity located at the top of the first cavity and communicating with it. The fire extinguishing assembly includes a storage tank, a piping assembly, and a spray assembly. The storage tank is located at the top of the cabinet, and the piping assembly is connected to both the storage tank and the spray assembly. The piping assembly is located within the third cavity, and the spray assembly is mounted on the inner wall of the housing assembly. The storage tank is used to store fire-retardant liquid.

[0011] In one embodiment, the jet assembly includes two auxiliary liquid tanks disposed opposite to each other on the inner wall of the housing assembly; the auxiliary liquid tanks are provided with a plurality of metal protrusion structures on the side facing the inner wall of the housing assembly.

[0012] In one embodiment, the lower wall of the cabinet is provided with two opposing air intake structures, and an air supply assembly is installed between the two air intake structures. The air intake end of the air supply assembly is connected to the air intake structure, and the air outlet end of the air supply assembly is connected to the second gas flow channel; and / or,

[0013] The auxiliary liquid tank is further provided with a metal frame on the side facing the inner wall of the housing assembly, and the metal frame is embedded in the wall of the auxiliary liquid tank.

[0014] In one embodiment, the air supply assembly includes a connecting pipe, a first pipe body, and at least two air inlet housings. One end of the air inlet housing is connected to the air inlet structure, and the other end of the air inlet housing is connected to the connecting pipe. A filter plate is provided at the end of the air inlet housing connected to the air inlet structure. A fan assembly is provided inside the air inlet housing. One end of the first pipe body is connected to the air inlet housing, and an air outlet is provided on the first pipe body. The air outlet is connected to the second gas flow channel.

[0015] In one embodiment, the air supply assembly further includes a second pipe, one end of which is connected to the connecting pipe, and the other end of which is connected to the liquid storage tank; and / or,

[0016] The connecting pipe has a first air inlet and a second air inlet at its two ends. The air supply assembly also includes a second guide rod, a third elastic element, a first plug and a second plug. The two ends of the second guide rod pass through the first air inlet and the second air inlet, respectively. The third elastic element is sleeved on the second guide rod, and the two ends of the third elastic element are connected to the first plug and the second plug, respectively. The first plug is used to block the first air inlet. The second plug is used to block the second air inlet.

[0017] The present invention also proposes an energy storage device, characterized in that it includes a storage cabinet as described above, and further includes a battery structure, wherein the battery structure is installed in the second cavity.

[0018] The technical solution of this invention involves setting a first gas flow channel on the housing assembly, and installing a rotatable baffle structure inside the first gas flow channel. The baffle structure can rotate outward from the first cavity. When air in the first cavity is discharged outward due to thermal convection, the airflow pushes the baffle structure open, allowing gas to continue to be discharged through the first gas flow channel, achieving normal ventilation and heat dissipation. Simultaneously, since the third end of the second gas flow channel is connected to the first cavity, and the fourth end of the second gas flow channel is connected to the interior of the housing assembly, a sealing element is provided inside the second gas flow channel. The sealing element is connected to a first elastic element. When the first elastic element is pressed by the battery structure, the elastic element pushes the sealing element to move towards the third end of the second gas flow channel, so that the outer surface of the sealing element forms a gap with the inner wall of the second gas flow channel, thereby opening the second gas flow channel and allowing air to enter the interior of the housing assembly through the second gas flow channel. When a fire occurs inside the storage cabinet, external air attempts to flow into the first cavity in the reverse direction. The airflow pushes the baffle structure to tightly adhere to the sides of the first gas flow channel, forming a sealed structure that prevents external oxygen from entering. This prevents external air from continuously replenishing oxygen through the first gas flow channel during a fire, inhibiting the spread of the fire and buying time for firefighting. Additionally, when a fire occurs inside the storage cabinet, the high temperature causes the first elastic element to undergo thermal deformation or fatigue failure. The elastic force of the first elastic element disappears, and the sealing element resets under the back pressure of the airflow, causing its outer surface to completely abut against the inner wall of the second gas flow channel, sealing the second gas flow channel and preventing gas from flowing into the interior of the housing assembly. Under normal conditions, the storage cabinet can maintain the continuity of the first and second gas flow channels to meet the heat dissipation requirements of the battery structure. Furthermore, in the event of a fire, it can automatically close the first and second gas flow channels, preventing them from becoming oxygen input channels. This reduces the oxygen concentration in the first cavity, causing the fire to weaken due to oxygen deficiency, thus improving firefighting efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a storage cabinet according to an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the internal structure of a storage cabinet according to an embodiment of the present invention;

[0022] Figure 3This is a schematic diagram of the structure of the housing assembly of an embodiment of the storage cabinet provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the protective housing of an embodiment of the storage cabinet provided by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the ejection assembly of a storage cabinet according to an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the mounting base, sealing member, and first elastic member of a storage cabinet according to an embodiment of the present invention;

[0026] Figure 7 This is a structural schematic diagram of the mounting base, sealing member, and first elastic member of an embodiment of the storage cabinet provided by the present invention.

[0027] Figure 8 This is a schematic diagram of the cabinet door structure of an embodiment of the storage cabinet provided by the present invention;

[0028] Figure 9 A schematic cross-sectional view of the cabinet door of an embodiment of the storage cabinet provided by the present invention;

[0029] Figure 10 A structural schematic diagram of the cabinet body from another perspective, representing an embodiment of the storage cabinet provided by the present invention;

[0030] Figure 11 A schematic diagram of the internal overall structure of a storage cabinet according to an embodiment of the present invention;

[0031] Figure 12 This is a schematic diagram of the structure of a fire extinguishing component in an embodiment of the storage cabinet provided by the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the auxiliary liquid tank in an embodiment of the storage cabinet provided by the present invention;

[0033] Figure 14 This is a schematic diagram of the air supply assembly of an embodiment of the storage cabinet provided by the present invention;

[0034] Figure 15 A schematic diagram of the internal structure of the air supply component of an embodiment of the storage cabinet provided by the present invention;

[0035] Figure 16 This is a schematic diagram of the connecting pipe and air inlet housing of an embodiment of the storage cabinet provided by the present invention.

[0036] Explanation of icon numbers:

[0037] 1. Cabinet body; 11. First cavity; 12. Third cavity; 13. Air intake structure; 2. Shell assembly; 21. Second cavity; 211. Mounting base; 22. First gas flow channel; 23. Second gas flow channel; 24. Baffle structure; 25. Sealing component; 26. First elastic component; 261. Arc-shaped part; 262. Abutting part; 27. Protective shell; 271. Box body; 2711. Rolling component; 2712. Mounting groove; 2713. Guide groove; 28. Cabinet door; 29. ​​Ejection assembly; 291. First guide rod; 292. Second elastic component; 293. 2931, Extension; 3, Fire extinguishing assembly; 31, Liquid storage tank; 32, Piping assembly; 321, Main pipe; 322, Branch pipe; 33, Spray assembly; 331, Auxiliary liquid tank; 332, Metal protrusion structure; 333, Metal frame; 4, Air supply assembly; 41, Connecting pipe; 411, First air inlet; 42, First pipe body; 421, Air outlet; 43, Air inlet shell; 44, Filter plate; 45, Fan assembly; 46, Second pipe body; 47, Second guide rod; 48, Third elastic element; 49, First plug; 40, Second plug.

[0038] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0042] In recent years, lithium batteries have been widely used due to their high energy density, but they pose a risk of thermal runaway and fire during storage. Current technologies typically use sensors and fire sprinklers for fire control in lithium battery storage devices. However, the presence of lithium batteries and other flammable electronic components inside these devices results in low fire suppression efficiency.

[0043] To address the aforementioned problems, this invention proposes a storage cabinet.

[0044] Please see Figures 1 to 16 In one embodiment of the present invention, the storage cabinet includes a cabinet body 1 and at least one housing assembly 2. The cabinet body 1 has at least one first cavity 11. The housing assembly 2 is disposed within the first cavity 11, and a second cavity 21 is provided inside the housing assembly 2. The second cavity 21 is used to install a battery structure. The housing assembly 2 has a first gas flow channel 22 and a second gas flow channel 23. The first end of the first gas flow channel 22 communicates with the first cavity 11, and the second end of the first gas flow channel 22 communicates with the outside of the cabinet body 1. A rotatable baffle structure 24 is provided inside the first gas flow channel 22 for shielding. The first gas flow channel 22; the third end of the second gas flow channel 23 is connected to the first cavity 11, and the fourth end of the second gas flow channel 23 is connected to the interior of the housing assembly 2; a sealing member 25 is provided in the second gas flow channel 23, and the outer surface of the sealing member 25 abuts against the inner wall surface of the second gas flow channel 23; a first elastic member 26 is connected to the side of the sealing member 25 facing the fourth end of the second gas flow channel 23; the battery structure is used to press the first elastic member 26 to move the sealing member 25 toward the third end of the second gas flow channel 23, so that a gap is formed between the outer surface of the sealing member 25 and the inner wall surface of the second gas flow channel 23.

[0045] In the above structure, a first gas flow channel 22 is provided on the housing assembly 2, and a rotatable baffle structure 24 is installed inside the first gas flow channel 22. The baffle structure 24 can rotate to the outside of the first cavity 11. When the air in the first cavity 11 is discharged outward due to thermal convection, the airflow pushes the baffle structure 24 to open, thereby allowing gas to continue to be discharged through the first gas flow channel 22, achieving normal ventilation and heat dissipation. At the same time, since the third end of the second gas flow channel 23 is connected to the first cavity 11 and the fourth end of the second gas flow channel 23 is connected to the interior of the housing assembly 2, a sealing member 25 is provided inside the second gas flow channel 23. The sealing member 25 is connected to the first elastic member 26. When the first elastic member 26 is pressed by the battery structure, the elastic member pushes the sealing member 25 to move towards the third end of the second gas flow channel 23, so that the outer surface of the sealing member 25 forms a gap with the inner wall of the second gas flow channel 23, thereby opening the second gas flow channel 23 and allowing air to enter the interior of the housing assembly 2 through the second gas flow channel 23. When a fire occurs inside the storage cabinet, external air attempts to flow into the first cavity 11 in the reverse direction. The airflow pushes the baffle structure 24 to tightly adhere to the sides of the first gas flow channel 22, forming a sealed structure that prevents external oxygen from entering. This prevents external air from continuously replenishing oxygen through the first gas flow channel 22 during a fire, thus suppressing the spread of the fire and buying time for firefighting. In addition, when a fire occurs inside the storage cabinet, the first elastic element 26 undergoes thermal deformation or fatigue failure under high temperature conditions. The elastic force of the first elastic element 26 disappears, and the sealing element 25 resets under the back pressure of the airflow, so that the outer surface of the sealing element 25 completely abuts against the inner wall of the second gas flow channel 23, sealing the second gas flow channel 23 and preventing gas from flowing into the interior of the housing assembly 2. Under normal conditions, the storage cabinet can keep the first gas flow channel 22 and the second gas flow channel 23 open to meet the heat dissipation requirements of the battery structure; and in the event of a fire, it can automatically close the first gas flow channel 22 and the second gas flow channel 23 to prevent the first gas flow channel 22 and the second gas flow channel 23 used for heat dissipation from becoming oxygen input channels, thereby reducing the oxygen concentration in the first cavity 11 and causing the fire to weaken due to lack of oxygen, thus improving the fire extinguishing efficiency.

[0046] In one embodiment, the cabinet 1 has a plurality of first cavities 11 arranged in an array. The storage cabinet includes a plurality of shell components 2, and each first cavity 11 is provided with a corresponding shell component 2. At least one battery structure is installed inside each shell component 2. In the above structure, the plurality of first cavities 11 arranged in an array can make full use of the space of the cabinet 1 to achieve high-density storage of battery structures, thereby maximizing the utilization of the internal space of the cabinet 1. Compared with scattered or irregular storage methods, this greatly improves the energy storage capacity per unit volume.

[0047] In one embodiment, the third end of the second gas flow channel 23 is close to the first cavity, and the fourth end is close to the interior of the housing assembly; the cross-sectional area of ​​the second gas flow channel 23 gradually increases from the fourth end to the third end. In the above structure, when the storage cabinet is in a normal ventilation and heat dissipation state, when external gas flows into the second gas flow channel 23, the airflow velocity increases as the cross-sectional area of ​​the flow channel gradually decreases (the narrower end of the second gas flow channel 23 faces the interior of the housing assembly 2), and the airflow pressure gradually increases, which can reduce airflow resistance and allow the airflow to enter the interior of the housing assembly 2 more quickly, improving ventilation efficiency. When the storage cabinet is in a fire, when the first elastic element 26 fails due to high temperature, the sealing element 25 loses the elastic force support of the first elastic element 26, and the pressure distribution characteristics in the second fluid flow channel (high pressure at the third end and low pressure at the fourth end) will cause the sealing element 25 to move towards the fourth end (the narrower end of the second gas flow channel 23). Because the contact area between the inner wall of the second gas flow channel 23 at the fourth end and the sealing member 25 is small, and the airflow velocity is higher and the pressure is lower at a narrower cross-section, the sealing member 25 can more easily adhere tightly to the inner wall of the second fluid flow channel under the action of pressure difference, forming a reliable seal. The cooperation between the second gas flow channel 23 and the sealing member 25, the first elastic member 26, and the cooperation between the first gas flow channel 22 and the baffle structure 24 complement each other, which can not only improve the daily heat dissipation efficiency, but also reduce the gas entering the housing assembly 2 in the event of a fire.

[0048] In one embodiment, a mounting base 211 is provided on the inner wall of the second cavity 21, and a second gas flow channel 23 is provided on the mounting base 211. The first elastic member 26 includes an arc-shaped portion 261 and an abutment portion 262 connected to each other. One end of the arc-shaped portion 261 is connected to the sealing member 25, and the inner arc side of the arc-shaped portion 261 faces the inner wall of the second cavity 21. The abutment portion 262 abuts against the inner wall of the second cavity 21. The battery structure is used to abut against the outer arc side of the arc-shaped portion 261.

[0049] In the above structure, the outer arc side of the arc-shaped portion 261 of the first elastic member 26 faces the interior of the second cavity 21, and one end of the second elastic member 292 is connected to the sealing member 25 to form an elastic support structure. When the battery structure presses against the outer arc side of the second elastic member 292, the arc-shaped portion 261 bends inward due to force, generating elastic deformation, causing the sealing member 25 to move towards the fourth end. The abutting portion 262 of the second elastic member 292 is used to abut against the inner wall of the second cavity 21, and the abutting portion 262 serves as the fulcrum for the deformation of the arc-shaped portion 261. In the normal installation state, when the battery structure is inserted into the second cavity 21, the side of the battery structure presses against the outer arc side of the arc-shaped portion 261, forcing the arc-shaped portion 261 to bend and deform, driving the sealing member 25 to move towards the third end of the second gas flow channel 23 (outer direction of the housing assembly 2), causing the sealing member 25 to separate from the inner wall of the second fluid flow channel, forming a ventilation gap. In a fire, the high temperature causes the arc-shaped portion 261 to thermally expand or fail due to fatigue, resulting in the loss of the elastic deformation capability of the second elastic element 292. Under the action of its own metallic memory or residual stress, the arc-shaped portion 261 restores its initial curvature, pulling the sealing element 25 back to the fourth end of the flow channel (inward direction of the housing assembly 2) until the outer surface of the sealing element 25 completely abuts against the inner wall of the second gas flow channel 23, sealing the second gas flow channel 23 (cutting off the air intake). It should be noted that the second elastic element 292 can be a spring.

[0050] In one embodiment, the housing assembly 2 includes a protective housing 27, which includes a box body 271 and a cabinet door 28. The box body 271 has an opening, and the cabinet door 28 is rotatably connected to the opening. A first gas flow channel 22 passes through the cabinet door 28, and a second gas flow channel 23 passes through the inner wall of the box body 271 and the mounting base 211.

[0051] In the above structure, the housing assembly 2 adopts a structure in which the box body 271 and the cabinet door 28 are rotatably connected, which facilitates the insertion and removal of the battery structure, ensuring both operational convenience and a certain degree of sealing of the housing assembly 2. When it is necessary to store or remove the battery, simply open or close the cabinet door 28; the operation is simple and efficient. The first gas flow channel 22 passes through the cabinet door 28, providing an exhaust channel for the air in the first cavity 11. Under normal circumstances, when the air in the first cavity 11 is discharged outward due to thermal convection and other reasons, the airflow can push the baffle structure 24 in the first gas flow channel 22 to open, achieving normal ventilation and heat dissipation. When external air attempts to flow in the opposite direction, the baffle structure 24 will tightly fit against the side of the flow channel, forming a seal, preventing external oxygen from entering, suppressing the spread of fire, and buying time for fire extinguishing. The second gas flow channel 23 penetrates the inner wall of the housing 271 and the mounting base 211. The second gas flow channel 23 cooperates with the battery structure, the sealing element 25, and the first elastic element 26. When the battery structure is installed in the second cavity 21 of the housing assembly 2, the battery presses against the first elastic element 26, causing the sealing element 25 to move in a specific direction towards the second gas flow channel 23, thus opening the second gas flow channel 23. External air can then enter the interior of the housing assembly 2 through the second gas flow channel 23, meeting the heat dissipation requirements of the battery structure. In the event of a fire, the high temperature causes the first elastic element 26 to fail, and the sealing element 25 resets to seal the second gas flow channel 23, preventing external air from entering and avoiding providing oxygen to the fire. The layout of the first gas flow channel 22 and the second gas flow channel 23 allows air in the first cavity 11 to be orderly discharged and entered, ensuring good heat dissipation of the battery structure under normal operating conditions, helping to maintain battery performance and stability, and extending battery life. In the event of a fire, the first gas flow channel 22 and the second gas flow channel 23 can respectively block the entry of external air into the first cavity 11 through the action of the baffle structure 24 and the sealing component 25, thereby rapidly reducing the oxygen concentration in the first cavity 11 and causing the fire to subside due to lack of oxygen, which greatly improves the fire extinguishing efficiency and safety of the storage cabinet.

[0052] In one embodiment, a rolling element 2711 is provided at the opening of the box body 271, and the rolling element 2711 is rotatably connected to the inner wall of the box body 271.

[0053] In the above structure, when the battery structure is placed into the housing 271, one side surface of the battery structure contacts the rolling element 2711. The rotation of the rolling element 2711 transforms the original sliding friction into rolling friction, significantly reducing the force required to push the battery into the housing 271. This allows operators to more easily complete the installation of the battery structure. Similarly, the rolling element 2711 plays a similar role when removing the battery, reducing operational difficulty and improving work efficiency.

[0054] In one embodiment, the housing assembly 2 further includes an ejection assembly 29, which includes a first guide rod 291, a second elastic member 292, and a movable member 293. The top and bottom walls of the housing 271 are each provided with a mounting groove 2712. The first guide rod 291 is installed in the mounting groove 2712. The second elastic member 292 passes through the first guide rod 291. The movable member 293 can move along the first guide rod 291. One end of the second elastic member 292 abuts against the inner wall of the mounting groove 2712, and the other end of the second elastic member 292 abuts against the movable member 293. The movable member 293 is provided with an extension 2931, which extends towards the battery structure and abuts against the side of the battery structure. The top and bottom walls of the housing 271 are each provided with a guide groove 2713. The extension 2931 extends from the guide groove 2713 into the second cavity 21 and can move along the guide groove 2713.

[0055] In the above structure, during the installation of the battery structure, as it is placed into the housing 271, the battery structure compresses the extension 2931 of the movable member 293. Since the movable member 293 can move along the first guide rod 291 and the second elastic member 292 is in a compressed state, the movable member 293 is subjected to the elastic force of the second elastic member 292, allowing it to flexibly adapt to the insertion of the battery structure. After the battery structure is installed in place, the second elastic member 292 continuously applies elastic force to the movable member 293, causing the extension 2931 of the movable member 293 to tightly abut against the side of the battery structure. It should be noted that a limiting groove can be provided on the bottom wall of the housing 271. When the battery structure is installed in place, it is located within the limiting groove, ensuring that the battery structure is fixed in position within the housing 271, providing a stable placement environment and ensuring the safety of battery structure storage. It should also be noted that ejection components 29 are provided on both the fixed wall and the bottom wall of the protective housing 27, thereby enhancing the structural stability of the entire storage cabinet.

[0056] In one embodiment, the system further includes a fire extinguishing component 3. The cabinet 1 also includes a third cavity 12, which is located on top of the first cavity 11 and is connected to the first cavity 11. The fire extinguishing component 3 includes a liquid storage tank 31, a pipeline assembly 32, and a spray assembly 33. The liquid storage tank 31 is located on top of the cabinet 1, and the pipeline assembly 32 is connected to both the liquid storage tank 31 and the spray assembly 33. The pipeline assembly 32 is located inside the third cavity 12, and the spray assembly 33 is installed on the inner wall of the housing assembly 2. The liquid storage tank 31 is used to store fire-retardant liquid.

[0057] In the above structure, the third chamber 12 is located on top of and connected to the first chamber 11. The liquid storage tank 31 is located on top of the cabinet 1. Utilizing gravity, the fire-retardant liquid inside the liquid storage tank 31 flows naturally downwards during fire extinguishing, achieving liquid delivery without the need for an additional power unit. The pipeline assembly 32 is located inside the third chamber 12, protecting it from external interference and facilitating connection with the liquid storage tank 31 and the spray assembly 33 to form a complete fire extinguishing liquid delivery system. The spray assembly 33 is installed on the inner wall of the shell assembly 2, enabling direct spraying of the fire-retardant liquid onto the area where the battery structure is located, ensuring the timeliness and effectiveness of fire extinguishing. When a fire occurs in the first chamber 11, the fire-retardant liquid in the liquid storage tank 31 flows to the spray assembly 33 through the pipeline assembly 32 under gravity. The spray assembly 33 evenly sprays the fire-retardant liquid into the interior of the shell assembly 2, covering the surface of the battery structure, thus extinguishing the fire and cooling it. The fire-retardant liquid can inhibit combustion reactions, lower temperatures, and prevent the spread of fire, thereby effectively controlling fires. The coordinated operation of the storage tank 31, piping assembly 32, and spray assembly 33 ensures that the fire-retardant liquid can evenly and sufficiently cover the battery structure inside each housing assembly 2. Furthermore, the fire-retardant liquid specifically uses a water-soluble flame retardant of model FR-101, and the cabinet 1 can be made of polyethylene.

[0058] In one embodiment, the jet assembly 33 includes two auxiliary liquid tanks 331 disposed opposite to each other on the inner wall of the housing assembly 2; the auxiliary liquid tanks 331 are provided with a plurality of metal protrusion structures 332 on the side facing the inner wall of the housing assembly 2; the pipeline assembly 32 includes a main pipe 321 and branch pipes 322, the main pipe 321 is connected to the liquid storage tank 31, and the branch pipes 322 are respectively connected to the main pipe 321 and the auxiliary liquid tanks 331 on both sides.

[0059] In the above structure, two auxiliary liquid tanks 331 are positioned opposite each other on the inner wall of the shell assembly 2, allowing for simultaneous spraying of fire-retardant liquid into the first cavity 11 from opposite sides. This ensures more comprehensive and uniform liquid coverage, effectively preventing fire extinguishing blind spots and ensuring that all parts of the battery structure are fully covered by the fire-retardant liquid. In the event of a fire, this allows for faster suppression of the fire, reduction of flame temperature, and prevention of fire spread. Compared to a single auxiliary liquid tank 331 design, the fire extinguishing efficiency is significantly improved. The main pipe 321 is directly connected to the storage tank 31, serving as the backbone of the entire pipeline system and efficiently transporting the fire-retardant liquid from the storage tank 31. The branch pipes 322 connect the main pipe 321 to the auxiliary liquid tanks 331 on both sides, ensuring a clear flow path for the fire-retardant liquid within the pipeline assembly 32. This avoids complex intersections and confusion, facilitating efficient pipe laying within limited space and simplifying the installation and maintenance of the pipeline assembly 32.

[0060] Furthermore, the metal protrusion structure 332 is located on the side of the auxiliary liquid tank 331 facing the inner wall of the housing assembly 2. In a high-temperature fire environment, the metal protrusion, due to its small volume and high thermal conductivity, will heat up before other parts of the auxiliary liquid tank 331. When the temperature reaches a certain level, the material of the auxiliary liquid tank 331 around the metal protrusion will melt first, forming small holes, thereby allowing the fire-retardant liquid in the auxiliary liquid tank 331 to be sprayed out more quickly. By adding the metal protrusion structure 332, the fire-retardant liquid can be released rapidly in the early stages of a fire, effectively controlling the development of the fire.

[0061] Among them, the metal bump structure 332 and the wall of the auxiliary liquid tank 331 are made of different materials. The melting point of the metal bump structure 332 is lower than that of the main material of the auxiliary liquid tank 331, and the bump melts first at high temperature.

[0062] In one embodiment, two air intake structures 13 are provided on the lower wall of the cabinet 1, and an air supply assembly 4 is installed between the two air intake structures 13. The air intake end of the air supply assembly 4 is connected to the air intake structure 13, and the air outlet end of the air supply assembly 4 is connected to the second gas flow channel 23.

[0063] In the above structure, the air intake structure 13, which is positioned opposite to the lower part of the cabinet 1, provides a stable air intake source for the air supply assembly 4. When the air supply assembly 4 is working, it draws in external air and outputs it through the air outlet. Since the air outlet is connected to the second gas flow channel 23, air can enter the interior of the housing assembly 2. At the same time, the hot air in the first cavity 11 is discharged through the first gas flow channel 22, thus forming a complete airflow circulation path, continuously introducing external cold air, carrying away the heat generated by the battery structure, thereby improving the overall heat dissipation efficiency, keeping the battery structure within a suitable operating temperature range, and helping to improve the performance and service life of the battery structure. It should be noted that the above-mentioned air intake structure 13 includes multiple air intake holes.

[0064] In one embodiment, the auxiliary liquid tank 331 is further provided with a metal frame 333 on the side facing the inner wall of the housing assembly 2, and the metal frame 333 is embedded in the wall of the auxiliary liquid tank 331.

[0065] In the aforementioned structure, the metal frame 333 is embedded in the wall of the auxiliary liquid tank 331, effectively enhancing the overall structural strength of the auxiliary liquid tank 331. Under normal conditions, it prevents the auxiliary liquid tank 331 from deforming due to external impact or compression, ensuring its stable installation on the inner wall of the shell assembly 2. In the event of a fire, because the metal frame 333 is embedded in the wall of the auxiliary liquid tank 331, under the high temperature environment of the fire, the melting of the metal frame 333 further expands the opening of the auxiliary liquid tank 331, allowing the fire-retardant liquid to flow out more smoothly. Because the metal frame 333 normally constrains the wall of the auxiliary liquid tank 331, this constraint disappears after melting, and the pressure inside the auxiliary liquid tank 331 can cause more fire-retardant liquid to be sprayed out, increasing the spray area and flow rate, more comprehensively covering the fire source, and improving fire extinguishing efficiency. In addition, the melting of the metal frame 333 works in conjunction with the metal protrusion structure 332 on the auxiliary liquid tank 331. The metal protrusions melt before the wall of the auxiliary liquid tank 331 to form small holes, allowing the fire-retardant liquid to begin spraying. As the fire develops, the metal frame 333 melts, further expanding the spray area. The two work together to ensure that the fire-retardant liquid can be continuously and efficiently sprayed into the fire area.

[0066] In one embodiment, the air supply assembly 4 includes a connecting pipe 41, a first pipe body 42, and at least two air inlet housings 43. One end of the air inlet housing 43 is connected to the air inlet structure 13, and the other end of the air inlet housing 43 is connected to the connecting pipe 41. A filter plate 44 is provided at the end of the air inlet housing 43 connected to the air inlet structure 13. A fan assembly 45 is provided inside the air inlet housing 43. One end of the first pipe body 42 is connected to the air inlet housing 43. An air outlet 421 is provided on the first pipe body 42, and the air outlet 421 is connected to the second gas flow channel 23.

[0067] In the above structure, one end of the air intake housing 43 is connected to the air intake structure 13, and the other end is connected to the connecting pipe 41. There are at least two air intake housings 43, and a filter plate 44 is provided at the end connected to the air intake structure 13. A fan assembly 45 is installed inside the air intake housing 43 to ensure a stable flow of air into the housing. The filter plate 44 effectively filters out dust and impurities from the air, preventing them from entering the storage cabinet and damaging the battery structure. The connecting pipe 41 connects at least two air intake housings 43, allowing the air drawn in by each housing to converge within the pipe, thus integrating the airflow and ensuring its uniformity and stability. One end of the first pipe 42 is connected to the air intake housing 43, and an air outlet 421 is provided on the first pipe 42, which is connected to the second gas flow channel 23. Through the first pipe 42, the converged air is transported to the second gas flow channel 23 and then enters the first cavity 11. When the fan assembly 45 is started, a negative pressure is formed in the intake housing 43, and outside air is drawn into the intake housing 43 through the intake structure 13. The filter plate 44 filters the intake air to ensure that the incoming air is clean; the integrated air enters the first pipe 42, and then enters the second gas flow channel 23 through the air outlet 421, and finally reaches the first cavity 11 to provide the airflow required for heat dissipation of the battery structure in the first cavity 11.

[0068] In one embodiment, the air supply assembly 4 further includes a second pipe body 46, one end of which is connected to the connecting pipe 41, and the other end of which is connected to the liquid storage tank 31. The two ends of the connecting pipe 41 are respectively provided with a first air inlet 411 and a second air inlet. The air supply assembly 4 further includes a second guide rod 47, a third elastic element 48, a first plug 49, and a second plug 40. The two ends of the second guide rod 47 pass through the first air inlet 411 and the second air inlet, respectively. The third elastic element 48 is sleeved on the second guide rod 47, and the two ends of the third elastic element 48 are respectively connected to the first plug 49 and the second plug 40. The first plug 49 is used to block the first air inlet 411, and the second plug 40 is used to block the second air inlet.

[0069] In the above structure, when the storage cabinet is in normal operation, the fan assembly 45 operates, drawing outside air into the intake housing 43. At this time, the pressure inside the intake housing 43 is relatively stable, and the third elastic element 48 is in a natural state or only slightly compressed. Under the action of elastic force, the first plug 49 and the second plug 40 seal the first air inlet 411 and the second air inlet, preventing air from entering the connecting pipe 41 through these two air inlets. Air mainly enters the second gas flow channel 23 through the air outlet 421 of the first pipe body 42 to dissipate heat for the battery structure inside the first cavity 11. When the storage cabinet is in a fire state and the air outlet 421 of the first pipe body 42 is blocked, the air inside the intake housing 43 cannot be discharged normally, causing the pressure to continuously increase. By utilizing the increased pressure within the air intake housing 43 to push the first plug 49 and the second plug 40, the first plug 49 and the second plug 40 overcome the elastic force of the third elastic element 48 and move away from the first air inlet 411 and the second air inlet respectively, thereby opening the first air inlet 411 and the second air inlet. Air then enters the connecting pipe 41 from the air intake housing 43, and then enters the liquid storage tank 31 through the second pipe body 46. As air continuously enters the liquid storage tank 31, the pressure inside the liquid storage tank 31 increases, causing the water-based fire retardant liquid in the liquid storage tank 31 to be sprayed more quickly through the pipe assembly 32 and the spray assembly 33 into the first cavity 11, achieving the purpose of fire extinguishing. The fire-retardant liquid inside the storage tank 31 flows through the first pipe 42 to the corresponding metal frame 333 until the water-based fire-retardant liquid inside the corresponding housing assembly 2 submerges the stored battery structure. As the amount of fire-retardant liquid increases, it flows out through the first gas channel 22. As the fire-retardant liquid continues to flow into the housing assembly 2, it carries away some of the heat inside the housing assembly 2. It should be noted that the third elastic element 48 can be a spring.

[0070] The technical solution of the present invention provides a first gas flow channel 22 on the housing assembly 2, and a rotatable baffle structure 24 is installed inside the first gas flow channel 22. The baffle structure 24 can rotate outward of the first cavity 11. When the air in the first cavity 11 is discharged outward due to thermal convection, the airflow pushes the baffle structure 24 to open, thereby allowing gas to continue to be discharged through the first gas flow channel 22, achieving normal ventilation and heat dissipation. At the same time, since the third end of the second gas flow channel 23 is connected to the first cavity 11 and the fourth end of the second gas flow channel 23 is connected to the interior of the housing assembly 2, a sealing member 25 is provided inside the second gas flow channel 23. The sealing member 25 is connected to the first elastic member 26. When the first elastic member 26 is pressed by the battery structure, the elastic member pushes the sealing member 25 to move towards the third end of the second gas flow channel 23, so that the outer surface of the sealing member 25 forms a gap with the inner wall of the second gas flow channel 23, thereby opening the second gas flow channel 23 and allowing air to enter the interior of the housing assembly 2 through the second gas flow channel 23. When a fire occurs inside the storage cabinet, external air attempts to flow into the first cavity 11 in the reverse direction. The airflow pushes the baffle structure 24 to tightly adhere to the sides of the first gas flow channel 22, forming a sealed structure that prevents external oxygen from entering. This prevents external air from continuously replenishing oxygen through the first gas flow channel 22 during a fire, thus suppressing the spread of the fire and buying time for firefighting. In addition, when a fire occurs inside the storage cabinet, the first elastic element 26 undergoes thermal deformation or fatigue failure under high temperature conditions. The elastic force of the first elastic element 26 disappears, and the sealing element 25 resets under the back pressure of the airflow, so that the outer surface of the sealing element 25 completely abuts against the inner wall of the second gas flow channel 23, sealing the second gas flow channel 23 and preventing gas from flowing into the interior of the housing assembly 2. Under normal conditions, the storage cabinet can keep the first gas flow channel 22 and the second gas flow channel 23 open to meet the heat dissipation requirements of the battery structure; and in the event of a fire, it can automatically close the first gas flow channel 22 and the second gas flow channel 23 to prevent the first gas flow channel 22 and the second gas flow channel 23 used for heat dissipation from becoming oxygen input channels, thereby reducing the oxygen concentration in the first cavity 11 and causing the fire to weaken due to lack of oxygen, thus improving the fire extinguishing efficiency.

[0071] The present invention also proposes an energy storage device, which includes a storage cabinet. The specific structure of the storage cabinet is as described in the above embodiments. Since this energy storage device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. It also includes a battery structure, which is installed inside the second cavity 21.

[0072] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A storage cabinet, characterized in that, include: The cabinet has at least one first cavity inside; At least one housing assembly is disposed within a first cavity, and a second cavity is provided inside the housing assembly; the second cavity is used to install a battery structure; the housing assembly is provided with a first gas flow channel and a second gas flow channel, a first end of the first gas flow channel communicating with the first cavity, and a second end of the first gas flow channel communicating with the outside of the housing; a rotatable baffle structure is provided inside the first gas flow channel, the baffle structure being used to block the first gas flow channel; a third end of the second gas flow channel communicating with the first cavity, and a fourth end of the second gas flow channel communicating with the inside of the housing assembly; a sealing element is provided inside the second gas flow channel, the sealing element... The outer surface of the sealing member abuts against the inner wall of the second gas flow channel; a first elastic element is connected to the side of the sealing member facing the fourth end of the second gas flow channel; the battery structure is used to press the first elastic element to move the sealing member toward the third end of the second gas flow channel, thus forming a gap between the outer surface of the sealing member and the inner wall of the second gas flow channel; in the event of a fire inside the storage cabinet, the first elastic element undergoes thermal deformation or fatigue failure, causing the elastic force of the first elastic element on the sealing member to disappear, and the sealing member resets under the back pressure of the airflow, thereby causing the outer surface of the sealing member to abut against the inner wall of the second gas flow channel and sealing the second gas flow channel.

2. The storage cabinet of claim 1, wherein, The cross-sectional area of ​​the second gas flow channel gradually increases from the fourth end to the third end; and / or, The second cavity has a mounting base on its inner wall, and the mounting base has a second gas flow channel. The first elastic member includes an arc-shaped part and an abutment part connected to each other. One end of the arc-shaped part is connected to the sealing member, and the inner arc side of the arc-shaped part faces the inner wall of the second cavity. The abutment part abuts against the inner wall of the second cavity. The battery structure is used to abut against the outer arc side of the arc-shaped part.

3. The storage cabinet of claim 2, wherein, The housing assembly includes a protective housing, which includes a box and a cabinet door. The box has an opening, and the cabinet door is rotatably connected to the opening. A first gas flow channel passes through the cabinet door, and a second gas flow channel passes through the inner wall of the box and the mounting base.

4. The storage cabinet of claim 3, wherein, The opening of the box is provided with a rolling element, which is rotatably connected to the inner wall of the box; and / or The housing assembly further includes an ejection assembly, which includes a first guide rod, a second elastic element, and a movable element. The top and bottom walls of the housing are each provided with a mounting groove. The first guide rod is installed in the mounting groove. The second elastic element passes through the first guide rod. The movable element is movable along the first guide rod. One end of the second elastic element abuts against the inner wall of the mounting groove, and the other end abuts against the movable element. The movable element has an extension that extends towards the battery structure and abuts against the side of the battery structure.

5. The storage cabinet of any one of claims 3 or 4, wherein, It also includes a fire extinguishing component. The cabinet further includes a third cavity, which is located on top of the first cavity and is connected to the first cavity. The fire extinguishing component includes a storage tank, a piping assembly, and a spray assembly. The storage tank is located on top of the cabinet, and the piping assembly is connected to both the storage tank and the spray assembly. The piping assembly is located inside the third cavity, and the spray assembly is installed on the inner wall of the housing assembly. The storage tank is used to store fire-retardant liquid.

6. The storage cabinet of claim 5, wherein, The jet assembly includes two auxiliary liquid tanks disposed opposite to each other on the inner wall of the housing assembly; the auxiliary liquid tanks are provided with a plurality of metal protrusion structures on the side facing the inner wall of the housing assembly.

7. The storage cabinet of claim 6, wherein, The lower wall of the cabinet is provided with two opposing air intake structures, and an air supply assembly is installed between the two air intake structures. The air intake end of the air supply assembly is connected to the air intake structure, and the air outlet end of the air supply assembly is connected to the second gas flow channel; and / or, The auxiliary liquid tank is further provided with a metal frame on the side facing the inner wall of the housing assembly, and the metal frame is embedded in the wall of the auxiliary liquid tank.

8. The storage cabinet of claim 7, wherein, The air supply assembly includes a connecting pipe, a first pipe body, and at least two air inlet housings. One end of the air inlet housing is connected to the air intake structure, and the other end of the air inlet housing is connected to the connecting pipe. A filter plate is provided at the end of the air inlet housing connected to the air intake structure. A fan assembly is provided inside the air inlet housing. One end of the first pipe body is connected to the air inlet housing. An air outlet is provided on the first pipe body, and the air outlet is connected to the second gas flow channel.

9. The storage cabinet of claim 8, wherein, The air supply assembly further includes a second pipe, one end of which is connected to the connecting pipe, and the other end of which is connected to the liquid storage tank; and / or The connecting pipe has a first air inlet and a second air inlet at its two ends. The air supply assembly also includes a second guide rod, a third elastic element, a first plug and a second plug. The two ends of the second guide rod pass through the first air inlet and the second air inlet, respectively. The third elastic element is sleeved on the second guide rod, and the two ends of the third elastic element are connected to the first plug and the second plug, respectively. The first plug is used to block the first air inlet. The second plug is used to block the second air inlet.

10. An energy storage device, characterized by, The storage cabinet, as described in any one of claims 1 to 9, further includes a battery structure installed within the second cavity.

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