Grading fire extinguishing device and energy storage cabinet

Abstract

The utility model discloses a grading fire extinguishing device and an energy storage cabinet, and relates to the technical field of grading fire extinguishing devices, the grading fire extinguishing device comprises a fire extinguishing box and a controller, the controller is located at the top of the fire extinguishing box, the top of the fire extinguishing box is provided with an adjusting fire extinguishing assembly, and the bottom of the fire extinguishing box is provided with a detection early warning assembly. The fire extinguishing adjusting assembly is arranged to be matched with the detection early warning assembly and the dry powder fire extinguisher for detection and graded fire extinguishing, and the problems that an existing energy storage cabinet is not provided with a graded fire extinguishing structure in use, and fire extinguishing equipment often excessively sprays a fire extinguishing agent when a fire breaks out due to the fact that the fire extinguishing intensity cannot be accurately controlled are solved. The problems that the energy storage cabinet is damaged secondarily, normal operation of the energy storage cabinet is affected, the using effect of the energy storage cabinet is greatly reduced, and the using effect of the energy storage cabinet is reduced are solved, and the graded fire extinguishing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of graded fire extinguishing devices, specifically to graded fire extinguishing devices and energy storage cabinets. Background Technology

[0002] A graded fire suppression system is an intelligent fire-fighting device that automatically adjusts its fire suppression strategy by monitoring the development stage of a fire in real time. It precisely matches the appropriate extinguishing agent and spray intensity to achieve efficient fire suppression and reduce secondary damage to equipment or the environment.

[0003] An energy storage cabinet is an integrated energy storage device, mainly used to store electrical energy (such as lithium batteries, lead-acid batteries, etc.). It is usually equipped with a battery management system (BMS), thermal management system, fire protection devices and structural protection components to achieve efficient storage, release and safe management of electrical energy.

[0004] For example, a liquid-cooled energy storage battery cabinet with publication number CN222637549U includes a cabinet body, a heat dissipation component, and a placement component. Multiple sets of slide rails are evenly distributed inside the cabinet body. The placement component includes a placement plate and a connecting plate. This invention, by setting up the placement component, allows the placement plate to slide along the slide rails into the cabinet body. Two sets of locking blocks are then pressed inwards, causing a compression spring to deform. The two sets of locking blocks slide inwards, lifting the connecting plate so that one side of it is tightly against one side of the slide rail. Then, the locking blocks are released, the compression spring returns to its original deformation, and the two sets of locking blocks respectively engage with the locking grooves on both sides of the slide rail, thereby fixing the placement plate and preventing it from sliding within the slide rail, thus avoiding damage to the energy storage battery. The heat dissipation component ensures effective heat dissipation for the energy storage battery within the cabinet during use and also dissipates heat from the surface of the cabinet, improving overall heat dissipation efficiency.

[0005] Based on the search of patent numbers, and combined with the shortcomings of existing technologies, the following findings were made;

[0006] Existing energy storage cabinets lack a graded fire suppression system. In the event of a fire, the inability to precisely control the fire suppression intensity often leads to excessive spraying of extinguishing agents, causing secondary damage to the energy storage cabinets. This not only affects the normal operation of the energy storage cabinets but also significantly reduces their effectiveness. Utility Model Content

[0007] To address the problems mentioned in the background section, the present invention aims to provide a graded fire extinguishing device and an energy storage cabinet, which possesses the advantages of graded fire extinguishing. This solves the problem that existing energy storage cabinets lack a graded fire extinguishing structure, and in the event of a fire, due to the inability to accurately control the fire extinguishing intensity, the fire extinguishing equipment often over-sprays extinguishing agents, causing secondary damage to the energy storage cabinet. This not only affects the normal operation of the energy storage cabinet but also significantly reduces its effectiveness.

[0008] To achieve the above objectives, this utility model proposes a graded fire extinguishing device, including a fire extinguishing box and a controller. The controller is located on the top of the fire extinguishing box, and an adjustable fire extinguishing component is installed on the top of the fire extinguishing box. A detection and early warning component is installed on the bottom of the fire extinguishing box, and a number of dry powder fire extinguishers are installed on the bottom of the inner wall of the fire extinguishing box, with the number of dry powder fire extinguishers arranged at equal intervals.

[0009] In a preferred embodiment of this invention, the adjustable fire extinguishing assembly includes a connecting ring, a speed reducer is provided on the top of the connecting ring, and a motor is installed on the top of the speed reducer.

[0010] In a preferred embodiment of this invention, the detection and early warning component includes a temperature sensor, a smoke sensor installed at the bottom of the fire extinguishing box, a gas sensor installed at the bottom of the fire extinguishing box, a flame sensor installed at the bottom of the fire extinguishing box, and the controller is electrically connected to the temperature sensor, smoke sensor, gas sensor, and flame sensor via wires. An alarm is installed at the top of the fire extinguishing box, and the alarm is electrically connected to the controller via wires.

[0011] As a preferred embodiment of this utility model, an insulation box is installed on the outside of the motor, and a movable groove is provided at the bottom of the insulation box, with the surface of the connecting ring located inside the movable groove.

[0012] As a preferred embodiment of this utility model, a heat insulation ring is installed on the outer side of the connecting ring, a heat insulation box is provided on the outer side of the controller, and the controller is located inside the heat insulation box.

[0013] As a preferred embodiment of this invention, the fire extinguishing box is equipped with a heptafluoropropane fire extinguisher, and a plurality of heptafluoropropane fire extinguishers are provided, which are arranged at equal intervals.

[0014] As a preferred embodiment of this invention, a connecting frame is installed at the bottom of the fire extinguishing box, and a centralized fan is installed on the inner side of the connecting frame. The centralized fan is located at the bottom of the gas sensor.

[0015] Another aspect of this utility model proposes an energy storage cabinet, including an energy storage cabinet body, wherein a fireproof and flame-retardant component is installed inside the energy storage cabinet body, and a ventilation and heat dissipation component is provided on the outer side of the top of the energy storage cabinet body.

[0016] As a preferred embodiment of this utility model, the fireproof and flame-retardant component includes a flame-retardant plate, a fireproof plate is installed on the outside of the energy storage cabinet body, and a protective plate is installed on the outside of the fireproof plate.

[0017] As a preferred embodiment of the present invention, the ventilation and heat dissipation component includes a connecting groove, a cooling fan is installed inside the connecting groove, and a dust filter is installed on the top of the cooling fan.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model solves the problem of existing energy storage cabinets lacking a graded fire suppression structure. In the event of a fire, due to the inability to accurately control the fire suppression intensity, the fire suppression equipment often over-sprays the extinguishing agent, causing secondary damage to the energy storage cabinet. This not only affects the normal operation of the energy storage cabinet but also significantly reduces its effectiveness. The present invention achieves the effect of graded fire suppression.

[0020] 2. This utility model, by setting an adjustable fire extinguishing component, allows for flexible adjustment of the fire extinguishing direction of the dry powder fire extinguisher through the fire extinguishing box. When the fire is in different areas or at different stages of development, it can be operated precisely according to actual needs to accurately strike the fire source. This flexible control function enhances the targeting of fire extinguishing, improves fire extinguishing efficiency, and provides more reliable fire safety protection. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Fire extinguishing box; 2. Energy storage cabinet body; 3. Controller; 4. Adjustable fire extinguishing components; 41. Connecting ring; 42. Reducer; 44. Motor; 5. Detection and early warning components; 51. Temperature sensor; 52. Smoke sensor; 53. Flame sensor; 54. Warning device; 55. Gas sensor; 6. Insulation box; 7. Moving trough; 8. Insulation ring; 9. Insulation box; 10. Heptafluoropropane fire extinguisher; 11. Connecting frame; 12. Central fan; 14. Fireproof and flame-retardant components; 141. Flame-retardant board; 142. Fireproof board; 143. Protective board; 15. Ventilation and heat dissipation components; 151. Connecting trough; 152. Cooling fan; 153. Dust filter; 16. Dry powder fire extinguisher. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 3 As shown, this utility model proposes a graded fire extinguishing device, including a fire extinguishing box 1 and a controller 3. The controller 3 is located on the top of the fire extinguishing box 1. An adjustable fire extinguishing component 4 is installed on the top of the fire extinguishing box 1. A detection and early warning component 5 is installed on the bottom of the fire extinguishing box 1. A number of dry powder fire extinguishers 16 are installed on the bottom of the inner wall of the fire extinguishing box 1. The number of dry powder fire extinguishers 16 are arranged at equal intervals.

[0027] refer to Figure 3 The fire extinguishing assembly 4 includes a connecting ring 41, a reducer 42 is provided on the top of the connecting ring 41, and a motor 44 is installed on the top of the reducer 42.

[0028] As a technical optimization of this utility model, by setting an adjustable fire extinguishing component 4, the motor 44 can be started during use, causing the output end of the motor 44 to drive the reducer 42 to rotate. The rotation of the reducer 42 can drive the connecting ring 41 to rotate. The rotation of the connecting ring 41 can flexibly adjust the extinguishing direction of the dry powder fire extinguisher 16 through the fire extinguishing box 1. When the fire is in different areas or at different stages of development, it can be operated precisely according to actual needs. In the early stage of the fire, the fire source may only be concentrated in a certain corner. At this time, the motor 44 drives the reducer 42, which drives the connecting ring 41, the fire extinguishing box 1 and the dry powder fire extinguisher 16 to rotate. The controller 3 can then activate only one or two dry powder fire extinguishers 16 near the fire source, accurately hitting the fire source and avoiding unnecessary spraying of extinguishing agent to other unaffected areas. This saves extinguishing agent and reduces overall damage. This flexible control function enhances the targeting of fire extinguishing, improves fire extinguishing efficiency, and provides more reliable fire safety protection.

[0029] refer to Figure 3The detection and early warning component 5 includes a temperature sensor 51, a smoke sensor 52 installed at the bottom of the fire extinguishing box 1, a gas sensor 55 installed at the bottom of the fire extinguishing box 1, and a flame sensor 53 installed at the bottom of the fire extinguishing box 1. The controller 3 is electrically connected to the temperature sensor 51, the smoke sensor 52, the gas sensor 55, and the flame sensor 53 via wires. An alarm 54 is installed on the top of the fire extinguishing box 1 and is electrically connected to the controller 3 via wires. The temperature sensor 51 is a DS18B20 model, the smoke sensor 52 is an MQ-2 model, the flame sensor 53 is a JFC-YW51 model, the gas sensor 55 is an MQ-7 model, and the controller 3 is an STM32F103 microcontroller.

[0030] As a technical optimization of this utility model, by setting up the detection and early warning component 5, the temperature sensor 51 can sensitively sense temperature changes and detect abnormal temperature rises caused by battery failure or other reasons in advance; the smoke sensor 52 can detect extremely fine smoke particles in the early stage of a fire and issue an early warning signal; the gas sensor 55 can detect harmful gases produced by the fire, such as carbon monoxide, to help determine the occurrence and development of the fire; and the flame sensor 53 can respond quickly when the fire develops into an open flame stage. These sensors work together to detect fire hazards in a timely manner and issue early warnings, buying valuable time for graded fire fighting and allowing firefighting operations to be effectively carried out in the early stage of a fire, greatly reducing the serious damage caused by the fire. To mitigate the risk of fire, the DS18B20 temperature sensor 51 employs a single-bus communication protocol. It senses temperature changes through its internal temperature-sensitive element and outputs the temperature value as a digital signal, allowing direct data transmission with the controller 3. It can monitor the internal temperature in real time, and upon abnormal temperature rise, transmits the temperature data to the controller 3, providing a basis for fire early warning. The DS18B20 temperature sensor 51 features small size, low power consumption, and strong anti-interference capabilities, making it suitable for use in environments with high stability requirements, such as energy storage cabinets. The MQ-2 smoke sensor 52 has high sensitivity to smoke and is widely used in fire alarm applications. It utilizes the adsorption and chemical reaction of smoke by semiconductor gas-sensitive materials to guide... The resistance value of the sensor changes, and the smoke concentration is determined by detecting this change. When the smoke concentration exceeds a set threshold, a signal is sent to controller 3, indicating a potential fire risk. The MQ-7 gas sensor 55 is mainly used to detect harmful gases such as carbon monoxide. In fire monitoring, it can effectively detect carbon monoxide gas produced by a fire. Based on the semiconductor gas-sensitive effect, when carbon monoxide gas is adsorbed on the sensor surface, its internal electron mobility changes, thus changing the sensor's resistance value. By measuring the change in resistance value, the concentration of carbon monoxide can be determined, assisting in judging the occurrence and development of a fire. The JFC-YW51 flame sensor 53 can quickly respond to the infrared light emitted by a flame and... Visible light, with its high sensitivity, senses specific wavelengths of light from flames. When a flame is detected, the photodiode inside the sensor generates a current change. After circuit processing, the signal is output to controller 3, indicating that the fire has progressed to the open flame stage. The STM32F103 controller 3, a series of microcontrollers, features abundant peripheral resources, high processing speed, and low power consumption. It is suitable for controlling various sensors and actuators. As the core control component of the entire graded fire suppression system, it receives signals from various sensors, analyzes and processes these signals, and determines the fire's severity and development stage based on preset algorithms and logic. This allows it to control the equipment's operation, achieving graded fire suppression and early warning functions.

[0031] refer to Figure 2An insulation box 6 is installed on the outside of the motor 44. A movable groove 7 is opened at the bottom of the insulation box 6, and the surface of the connecting ring 41 is located inside the movable groove 7.

[0032] As a technical optimization of this utility model, by setting up an insulation box 6 and a moving groove 7, the insulation box 6 can effectively isolate the heat generated by the motor 44 during operation, preventing it from being transferred into the fire extinguishing box 1, thus avoiding thermal interference to the fire extinguishing equipment and sensors inside the fire extinguishing box 1, affecting their normal performance and service life. The moving groove 7 provides a stable track for the rotation of the connecting ring 41, ensuring the stability of the connecting ring 41 during rotation, and also reducing the impact of external heat on the connecting ring 41 and related transmission components. The cooperation between the insulation box 6 and the moving groove 7 protects the normal operation of the motor 44 and transmission components, enabling the fire extinguishing device to work stably in harsh environments such as high temperatures.

[0033] refer to Figure 3 A heat insulation ring 8 is installed on the outside of the connecting ring 41, and a heat insulation box 9 is provided on the outside of the controller 3. The controller 3 is located inside the heat insulation box 9.

[0034] As a technical optimization of this utility model, by setting up a heat insulation ring 8 and a heat insulation box 9, the heat insulation ring 8 can further block heat from being transferred from the connecting ring 41 to the motor 44 and the reducer 42, while the heat insulation box 9 tightly wraps the controller 3 to form heat insulation protection. As the core control component of the entire graded fire extinguishing device, the controller 3 is relatively sensitive to temperature changes. Overheating may cause it to malfunction or control errors. The setting of the heat insulation ring 8 and the heat insulation box 9 effectively protects the controller 3, ensuring that it can operate stably in complex fire environments, accurately receive sensor signals and issue control commands, ensure the normal operation of the graded fire extinguishing device, and thus improve fire safety performance.

[0035] refer to Figure 3 The fire extinguishing box 1 is equipped with several heptafluoropropane fire extinguishers 10, which are arranged at equal intervals.

[0036] As a technical optimization of this utility model, a heptafluoropropane fire extinguisher 10 is installed. Heptafluoropropane extinguishing agent has the advantages of high fire extinguishing efficiency, no residue, and non-conductivity. When the fire develops to a certain extent and the dry powder fire extinguisher 16 can no longer completely control the fire, the heptafluoropropane fire extinguisher 10 is activated, which can quickly and evenly spray the extinguishing agent to effectively extinguish the fire. Especially for some precision equipment areas that are difficult to cover with dry powder, heptafluoropropane can play a better role. It can not only extinguish fires efficiently, but also reduce damage to electronic equipment and avoid problems such as short circuits caused by extinguishing agent residue. It further improves the effect of graded fire extinguishing and ensures the safety of internal equipment.

[0037] refer to Figure 3 A connecting frame 11 is installed at the bottom of the fire extinguishing box 1, and a centralized fan 12 is installed on the inner side of the connecting frame 11. The centralized fan 12 is located at the bottom of the gas sensor 55.

[0038] As a technical optimization of this utility model, by setting up a connecting frame 11 and a centralized fan 12, with the centralized fan 12 located at the bottom of the gas sensor 55 and continuously running, air circulation is promoted. This helps the gas sensor 55, temperature sensor 51, and smoke sensor 52 to detect harmful gases, temperatures, and smoke generated by a fire more quickly and accurately, thereby improving monitoring sensitivity and response speed.

[0039] like Figures 1 to 3 As shown, another aspect of this utility model proposes an energy storage cabinet, including an energy storage cabinet body 2. A fire-retardant component 14 is installed inside the energy storage cabinet body 2, and a ventilation and heat dissipation component 15 is provided on the outer side of the top of the energy storage cabinet body 2.

[0040] refer to Figure 2 The fireproof and flame-retardant component 14 includes a flame-retardant plate 141, a fireproof plate 142 is installed on the outside of the energy storage cabinet body 2, and a protective plate 143 is installed on the outside of the fireproof plate 142.

[0041] As a technical optimization of this utility model, by setting fire-retardant components 14, flame-retardant plates 141 and fireproof plates 142 can effectively prevent the spread of fire inside the energy storage cabinet body 2 and slow down the development of the fire. Protective plates 143 further enhance the structural strength of the energy storage cabinet body 2 and prevent external fire from directly impacting and damaging the energy storage cabinet body 2. When a fire occurs, the fire-retardant components 14 can protect the batteries and other equipment inside the energy storage cabinet body 2 for a certain period of time, buy time for fire fighting and personnel rescue, reduce the losses caused by the fire, ensure the safety of the energy storage cabinet body 2, and improve the overall reliability of the energy storage system.

[0042] refer to Figure 2 The ventilation and heat dissipation assembly 15 includes a connecting groove 151, a cooling fan 152 is installed inside the connecting groove 151, and a dust filter 153 is installed on the top of the cooling fan 152.

[0043] As a technical optimization of this utility model, by setting up a ventilation and heat dissipation component 15, a cooling fan 152 and a dust filter 153 cooperate with each other. The cooling fan 152 works continuously to dissipate heat from the energy storage cabinet body 2, reduce the temperature inside the cabinet, and prevent battery failure or fire caused by excessive temperature. The dust filter 153 can prevent external dust and other impurities from entering the energy storage cabinet body 2, keep the internal environment clean, and reduce the risk of electrical failure caused by dust accumulation. Good ventilation and heat dissipation conditions help maintain the normal operation of the equipment inside the energy storage cabinet body 2, extend the service life of the equipment, and also create a stable working environment for the graded fire extinguishing device, thereby improving the safety and stability of the entire energy storage system.

[0044] The working principle and usage process of this utility model are as follows: During use, the temperature sensor 51, smoke sensor 52, gas sensor 55, and flame sensor 53 continuously monitor the internal environment of the energy storage cabinet body 2. The temperature sensor 51 monitors the temperature inside the energy storage cabinet body 2 in real time. Once the temperature rises abnormally, such as reaching the preset primary warning temperature value, it will immediately transmit the temperature data to the controller 3 via a wire. The smoke sensor 52 continuously detects the smoke concentration in the air. When the smoke concentration exceeds the set threshold, it also transmits a signal to the controller 3. The gas sensor 55 monitors harmful gases produced by a fire, such as carbon monoxide. When the carbon monoxide concentration reaches a certain level, it will detect the gas concentration. A fixed value is also sent to the controller 3. Once the flame sensor 53 detects an open flame, it will quickly transmit the signal to the controller 3. When the controller 3 receives the abnormal signal from the sensor, it will judge the level and development stage of the fire based on the information fed back by different sensor combinations. If only the temperature sensor 51 emits an abnormal signal, it may be judged as the initial stage of the fire. If the temperature, smoke and gas sensors 55 all emit abnormal signals, it may be the development stage of the fire. If the flame sensor 53 detects an open flame, it indicates that the fire is already quite serious. At the same time, the controller 3 will control the alarm 54 on the top of the energy storage cabinet 2 to sound an alarm to remind relevant personnel to pay attention. If the fire is determined to be in its initial stage, such as an abnormal temperature rise occurring only in a corner of the energy storage cabinet 2 without any open flame, the controller 3 sends a command to the motor 44. The motor 44 starts operating, and its output drives the reducer 42 to rotate. The rotation of the reducer 42 causes the connecting ring 41 to rotate, which in turn drives the fire extinguishing box 1 and the dry powder fire extinguishers 16 to rotate. This adjusts one or two dry powder fire extinguishers 16 near the fire source to a suitable angle, and then activates these extinguishers for localized fire suppression, precisely targeting the fire source and avoiding unnecessary spraying of extinguishing agent to other unaffected areas. This conserves extinguishing agent and reduces damage to the overall energy storage cabinet 2. If the dry powder fire extinguisher 16 cannot completely control the fire as it develops, the controller 3 will activate the heptafluoropropane fire extinguisher 10 when certain conditions are met. The spray end of the heptafluoropropane fire extinguisher 10 is located inside the energy storage cabinet body 2. After activation, it can quickly and evenly spray the extinguishing agent inside the energy storage cabinet body 2. Utilizing the high extinguishing efficiency, no residue, and non-conductive properties of heptafluoropropane, it can effectively extinguish the fire. Especially in areas of precision equipment that are difficult to cover with dry powder, heptafluoropropane can play a better role, reducing damage to electronic equipment inside the energy storage cabinet body 2 and avoiding problems such as short circuits caused by extinguishing agent residue. This achieves the effect of graded fire suppression and enhances the usability of the energy storage cabinet body 2.

[0045] In summary, this graded fire extinguishing device, through the combination of the adjusting fire extinguishing component 4, the detection and early warning component 5, and the dry powder fire extinguisher 16, achieves graded fire extinguishing. This solves the problem that existing energy storage cabinets lack a graded fire extinguishing structure, and in the event of a fire, due to the inability to accurately control the fire extinguishing intensity, the fire extinguishing equipment often over-sprays the extinguishing agent, causing secondary damage to the energy storage cabinet. This not only affects the normal operation of the energy storage cabinet but also significantly reduces its effectiveness.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hierarchical fire extinguishing apparatus comprising a fire extinguishing tank (1) and a controller (3), characterized in that: The controller (3) is located at the top of the fire extinguishing box (1), the top of the fire extinguishing box (1) is provided with an adjusting fire extinguishing assembly (4), the bottom of the fire extinguishing box (1) is provided with a detection early warning assembly (5), the bottom of the inner wall of the fire extinguishing box (1) is provided with a dry powder fire extinguisher (16), the dry powder fire extinguisher (16) is provided with a plurality of dry powder fire extinguishers (16), and the plurality of dry powder fire extinguishers (16) are arranged at equal distances.

2. The staged fire suppression device of claim 1, wherein: The adjusting fire extinguishing assembly (4) comprises a connecting ring (41), and the top of the connecting ring (41) is provided with a speed reducer (42).

3. The staged fire suppression device of claim 1, wherein: The detection early warning assembly (5) comprises a temperature sensor (51), a smoke sensor (52) mounted at the bottom of the fire extinguishing box (1), a gas sensor (55) mounted at the bottom of the fire extinguishing box (1), a flame sensor (53) mounted at the bottom of the fire extinguishing box (1), and the controller (3) is electrically connected with the temperature sensor (51), the smoke sensor (52), the gas sensor (55) and the flame sensor (53) through wires, and the top of the fire extinguishing box (1) is provided with a warning device (54) electrically connected with the controller (3) through wires.

4. The staged fire suppression device of claim 2, wherein: The outer side of the motor (44) is provided with a temperature insulation box (6), the bottom of the temperature insulation box (6) is provided with a moving groove (7), and the surface of the connecting ring (41) is located in the moving groove (7).

5. The staged fire suppression device of claim 2, wherein: The outer side of the connecting ring (41) is provided with a temperature insulation ring (8), the outer side of the controller (3) is provided with a temperature insulation box (9), and the controller (3) is located in the temperature insulation box (9).

6. The staged fire suppression device of claim 1, wherein: The inside of the fire extinguishing box (1) is provided with a heptafluoropropane fire extinguisher (10), the heptafluoropropane fire extinguisher (10) is provided with a plurality of heptafluoropropane fire extinguishers (10), and the plurality of heptafluoropropane fire extinguishers (10) are arranged at equal distances.

7. The staged fire suppression device of claim 3, wherein: The bottom of the fire extinguishing box (1) is provided with a connecting frame (11), the inner side of the connecting frame (11) is provided with a concentrated fan (12), and the concentrated fan (12) is located at the bottom of the gas sensor (55).

8. An energy storage cabinet characterized by, The hierarchical fire extinguishing device and the energy storage cabinet body (2) of any one of claims 1-7 are included. The inside of the energy storage cabinet body (2) is provided with a fireproof and flame-retardant assembly (14), and the outside of the top of the energy storage cabinet body (2) is provided with a ventilation and heat dissipation assembly (15).

9. An energy storage cabinet according to claim 8, characterised in that: The fireproof and flame-retardant assembly (14) comprises a flame-retardant plate (141), the outside of the energy storage cabinet body (2) is provided with a fireproof plate (142), and the outside of the fireproof plate (142) is provided with a protective plate (143).

10. An energy storage cabinet according to claim 8, characterized in that: The ventilation and heat dissipation assembly (15) comprises a connecting groove (151), the inside of the connecting groove (151) is provided with a heat dissipation fan (152), and the top of the heat dissipation fan (152) is provided with a dustproof filter screen (153).

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