Lithium battery storage cabinet integrating anti-explosion and automatic fire extinguishing functions

Abstract

The lithium battery storage cabinet integrating the anti-explosion and automatic fire extinguishing functions comprises a storage cabinet body, an opening of the storage cabinet body is upward, the storage cabinet body is arranged in a double-layer mode, moving wheels are arranged at the four corners of the lower end of the storage cabinet body, and a sealing upper cover is rotationally connected to the right side of the upper end of the storage cabinet body. A fire extinguishing box is fixedly connected to the outer side of the front end of the storage cabinet body, a fixed insertion barrel is fixedly connected to the center of the front end of the storage cabinet body, a water-based pressure storage type fire extinguishing main machine is inserted into the upper end of the fixed insertion barrel, a conveying pipeline extends into the storage cabinet, and the tail end of the pipeline is connected with a spray head with an automatic temperature sensing starting function. Explosion-proof and automatic fire extinguishing functions are integrated in one storage cabinet body, spontaneous combustion and explosion possibly occurring in the lithium battery storage and transportation process are effectively dealt with, the safety performance is improved, a water-based fire extinguishing host and a temperature sensing self-starting closed nozzle are arranged, the high-temperature environment can be automatically detected and responded, a fire extinguishing agent is accurately sprayed, and the fire extinguishing efficiency and the response speed are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to lithium battery storage, and particularly relates to a lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions. Background Art

[0002] With the widespread adoption of new energy lithium batteries over the past few years, they have become increasingly common in a variety of applications, including electric vehicles, electric bicycles, power tools, forklifts, and factory electrical equipment. This widespread use of lithium batteries has inevitably led to the elimination of a large and dispersed collection of used lithium battery cells, modules, and even packs during maintenance and equipment decommissioning. Used lithium batteries generally exhibit poor performance and are no longer suitable for use. They also suffer from poor chemical stability. Furthermore, when removed from equipment, their monitoring functions are deactivated, preventing them from providing timely warnings of danger. Furthermore, lithium batteries continue to undergo chemical reactions during storage. If a lithium battery experiences thermal runaway and spontaneous combustion, it can inevitably cause widespread spontaneous combustion of used lithium battery modules and packs, potentially causing fires. Used lithium batteries are typically found in large concentrations in locations such as electric bicycle repair shops, lithium battery manufacturers' nationwide after-sales service stations, electric vehicle repair shops, factory maintenance warehouses, and transport vehicles. Since these lithium batteries are scattered throughout the streets and alleys of the city, once a fire occurs, it is very likely to cause a sudden fire. Since the rescue department lacks corresponding data and preventive measures, it is very likely that the fire will expand and cause large-scale fire accidents.

[0003] Under this situation, the society urgently needs a device, an explosion-proof fire extinguishing cabinet specifically for storing lithium batteries. When a lithium battery spontaneously combusts, the explosion of the lithium battery will not injure surrounding personnel and materials. When the lithium battery explodes and spontaneously combusts, the fire extinguisher designed by this patent automatically detects the fire and automatically sprays a high-efficiency fire extinguishing agent developed for lithium battery fires to put out the fire in the cabinet in time, preventing the fire from spreading outside this patented product and preventing the occurrence of large-scale fires.

[0004] Comparable products on the market generally lack explosion-proof features and rely on smoke and temperature sensors, along with control circuits to activate the fire extinguishing system. Fire extinguishing devices without explosion-proof features offer no protection against battery shock waves, and spontaneous combustion and explosion can also spread the fire. Circuit-controlled fire extinguishing systems are expensive to manufacture and maintain, slow to activate, and require a power source, making them susceptible to failure due to power outages.

[0005] This patented product allows for the safe and isolated storage of waste lithium batteries and other potentially flammable materials, such as waste lithium batteries, and can contain unpredictable spontaneous combustion fires within this patented cabinet. This patented product design offers explosion-proof capabilities for lithium batteries, a cost-effective fire detection method, and rapid fire extinguishing capabilities, making it highly valuable for both promotion and dissemination. Utility Model Content

[0006] The purpose of the present utility model is to provide a lithium battery storage cabinet integrating explosion-proof and automatic fire extinguishing functions, so as to solve the problems in the above-mentioned background technology that waste lithium batteries are prone to spontaneous combustion during storage and transportation, and cannot be isolated after spontaneous combustion, which is likely to cause fire and pose a potential safety hazard.

[0007] To achieve the above object, the present utility model provides the following technical solution: a lithium battery storage cabinet integrating explosion-proof and automatic fire extinguishing functions, including a storage cabinet body. The storage cabinet body has an upward opening and is arranged in a double-layer structure. Moving wheels are provided at the four corners of the lower end of the storage cabinet body. A sealing upper cover is rotatably connected to the upper right side of the storage cabinet body. A fire extinguishing box is fixedly connected to the outer side of the front end of the storage cabinet body. A fixed insertion cylinder is fixedly connected to the center of the front end of the storage cabinet body. A water-based fire extinguishing main unit is inserted into the upper end inside the fixed insertion cylinder. A fire extinguishing agent delivery pipeline is communicated with the upper right side of the water-based fire extinguishing main unit, and the rear end of the fire extinguishing agent delivery pipeline penetrates through the inside of the right side of the storage cabinet body. A pressure relief pipe is provided at the lower left corner of the front end of the storage cabinet body, and the pressure relief pipe is communicated with the inside of the storage cabinet body and is located below the fire extinguishing box.

[0008] Preferably, a temperature-sensitive self-activation closed sprinkler is communicated with the lower side of the rear end of the fire extinguishing agent delivery pipeline. A pressure monitoring sensor is provided on the upper end of the water-based fire extinguishing main unit. An audible and visual alarm is provided on the upper left side of the fire extinguishing box, and the pressure monitoring sensor is connected to the audible and visual alarm through a wire harness.

[0009] Preferably, a telescopic sliding groove is formed inside the rear side of the cylindrical inner wall of the pressure relief pipe, and the telescopic sliding groove is communicated with the outside of the pressure relief pipe through a plurality of flow discharge ports. A plugging sliding head is slidably connected inside the pressure relief pipe.

[0010] Preferably, a limiting ring is fixedly connected to the cylindrical outer wall of the plugging sliding head and is clamped inside the telescopic sliding groove through the limiting ring, and the limiting ring is slidably connected inside the telescopic sliding groove.

[0011] Preferably, a plugging spring is arranged inside the front end of the plugging sliding head and is elastically connected inside the pressure relief pipe through the plugging spring.

[0012] Preferably, a pressure relief window in the shape of a "convex" is vertically penetrated inside the sealing upper cover. A blocking plate is clamped inside the upper end of the pressure relief window. Limiting sliding rods are fixedly connected to the four corners of the lower end of the blocking plate.

[0013] Preferably, limiting pipe columns are provided at the four corners of the lower end of the sealing upper cover. The four limiting sliding rods penetrate through the inside of the sealing upper cover and are respectively slidably connected inside the four limiting pipe columns. A plurality of limiting pieces are fixedly connected to the cylindrical outer walls of the four limiting pipe columns.

[0014] Preferably, the plurality of the limiting pieces are distributed in multiple layers from top to bottom, and the plurality of limiting pieces on the uppermost side are respectively in close contact with the inner wall of the upper end of the limiting pipe column.

[0015] Compared with the prior art, the utility model provides a lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions, and has the following beneficial effects:

[0016] 1. Integrated explosion-proof and automatic fire extinguishing system: The conveying pipeline extends into the interior of the storage cabinet, and the end of the pipeline is connected to a sprinkler head started by automatic temperature sensing, integrating the explosion-proof and automatic fire extinguishing functions in a storage cabinet body, effectively coping with spontaneous combustion and explosion that may occur during the storage and transportation of lithium batteries, and improving the safety performance.

[0017] 2. Water-based fire extinguishing device and temperature-sensing self-starting sprinkler head: Equipped with a water-based fire extinguishing main engine and a temperature-sensing self-starting closed sprinkler head, it can automatically detect and respond to high-temperature environments, accurately spray fire extinguishing agents, and improve the fire extinguishing efficiency and response speed.

[0018] 3. Pressure monitoring and alarm system: Using pressure monitoring sensors to monitor the pressure changes in the cabinet in real time, and sending out alarms in time through sound and light alarms to enhance the early warning ability.

[0019] 4. Intelligent pressure relief mechanism: The pressure relief pipe and pressure relief window are designed to automatically adjust the pressure and prevent explosion. The plugging sliding head and plugging spring inside the pressure relief pipe ensure safe pressure relief, while the sealing baffle and limiting piece structure of the pressure relief window can respond to impacts of different intensities in a stepped manner to achieve intelligent pressure relief.

[0020] 5. Multiple safety protections: Combining the sealed upper cover and internal structure design to ensure that in case of a fire, the fire source can be effectively isolated and the spread of the fire can be avoided.

[0021] 6. Modular and movable design: The double-layer setting of the storage cabinet body and the bottom moving wheels facilitate flexible movement and efficient layout, while ensuring the structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structure schematic diagram of the lithium battery storage cabinet of the utility model.

[0023] Figure 2 It is a connection structure schematic diagram of the water-based fire extinguishing main engine of the utility model.

[0024] Figure 3 It is a three-dimensional sectional structure schematic diagram of the lithium battery storage cabinet of the utility model.

[0025] Figure 4 It is of the utility model Figure 3 Enlarged schematic diagram at A in

[0026] Figure 5 It is of the utility modelFigure 3 Enlarged schematic view at position B in the middle.

[0027] In the figure: 1. Storage cabinet body; 2. Moving wheels; 3. Sealing upper cover; 4. Fire extinguishing box; 5. Fixed insertion cylinder; 6. Water-based fire extinguishing main machine; 7. Fire extinguishing agent delivery pipeline; 8. Pressure relief pipe; 9. Heat-sensitive self-activation closed sprinkler head; 10. Pressure monitoring sensor; 11. Acousto-optic alarm; 12. Telescopic chute; 13. Plugging slider; 14. Limiting ring; 15. Plugging spring; 16. Pressure relief window; 17. Blocking plate; 18. Limiting slide bar; 19. Limiting pipe column; 20. Limiting piece. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention provides as Figures 1-5A lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions is shown, including a storage cabinet body 1. The storage cabinet body 1 has an upward opening and is arranged in a double layer. At the four corners of the lower end of the storage cabinet body 1, moving wheels 2 are provided for pushing and moving. On the right side of the upper end of the storage cabinet body 1, a sealed upper cover 3 is rotatably connected. On the outer side of the front end of the storage cabinet body 1, a fire extinguishing box 4 is fixedly connected. At the center of the front end of the storage cabinet body 1, a fixed insertion cylinder 5 is fixedly connected. Inside the upper end of the fixed insertion cylinder 5, a water-based fire extinguishing main unit 6 is inserted. On the right side of the upper end of the water-based fire extinguishing main unit 6, a fire extinguishing agent delivery pipeline 7 is communicated, and the rear end of the fire extinguishing agent delivery pipeline 7 penetrates through the inside of the right side of the storage cabinet body 1. At the lower left corner of the front end of the storage cabinet body 1, a pressure relief pipe 8 is provided, and the pressure relief pipe 8 is communicated with the inside of the storage cabinet body 1 and is located below the fire extinguishing box 4. The stability of waste lithium batteries is poor, and they are prone to spontaneous combustion during storage and transportation, posing a safety hazard. By using a storage box to store and transport waste lithium batteries, the spontaneous combustion of lithium batteries can be effectively dealt with, reducing the safety hazard of waste lithium batteries. The waste lithium batteries are placed inside the storage cabinet body 1, and the upper end of the storage cabinet body 1 is blocked by the sealed upper cover 3, so that the waste lithium batteries are in a sealed environment. At the same time, a water-based fire extinguishing main unit 6 is provided at the front end of the storage cabinet body 1, and the water-based fire extinguishing main unit 6 is placed through the fixed insertion cylinder 5. The water-based fire extinguishing main unit 6 is protected by the fire extinguishing box 4, and the water-based fire extinguishing main unit 6 can be connected to the inside of the storage cabinet body 1 through the fire extinguishing agent delivery pipeline 7, so that the storage cabinet body 1 can protect the waste lithium batteries. When the waste lithium batteries catch fire spontaneously, the inside of the storage cabinet body | can be extinguished through the water-based fire extinguishing main unit 6 and the fire extinguishing agent delivery pipeline 7, and the burning lithium batteries can be isolated by the storage cabinet body 1 and the sealed upper cover 3 to prevent the spread of fire, thereby improving the storage and transportation safety of waste lithium batteries and reducing the safety hazard of waste lithium batteries.

[0030] Preferably, a heat-sensitive self-activating closed sprinkler 9 is connected to the lower side of the rear end of the fire extinguishing agent delivery pipeline 7. A pressure monitoring sensor 10 is arranged at the upper end of the water-based fire extinguishing main unit 6. An audible and visual alarm 11 is arranged at the upper side of the left end of the fire extinguishing box 4. And the pressure monitoring sensor 10 is connected to the audible and visual alarm 11 through a wire harness. When a waste lithium battery catches fire spontaneously, the heat-sensitive self-activating closed sprinkler 9 can be automatically opened at high temperature, so that the fire extinguishing agent inside the water-based fire extinguishing main unit 6 can be introduced into the pressure relief pipe 8 through the fire extinguishing agent delivery pipeline 7 and sprayed into the storage cabinet 1 through the pressure relief pipe 8, thereby extinguishing the fire inside the storage cabinet 1. And when the fire inside the storage cabinet 1 intensifies, the temperature inside the storage cabinet 1 will bake the fire extinguishing agent delivery pipeline 7, and the fire extinguishing agent delivery pipeline 7 will burst at the position with the highest internal fire extinguishing agent pressure and the highest temperature, so that the fire extinguishing agent can be sprayed through the burst to the position with the highest temperature inside the storage cabinet 1, further extinguishing the fire inside the storage cabinet 1. At the same time, the pressure monitoring sensor 10 can detect the pressure change inside the water-based fire extinguishing main unit 6 and convert the pressure change of the water-based fire extinguishing main unit 6 into an electrical signal and transmit it to the audible and visual alarm 11, so that the audible and visual alarm 11 emits an alarm sound and alarm light.

[0031] Preferably, a telescopic chute 12 is arranged inside the rear side of the cylindrical inner wall of the pressure relief pipe 8, and the telescopic chute 12 is communicated with the outside of the pressure relief pipe 8 through a plurality of drainage ports. A plugging slider 13 is slidably connected inside the pressure relief pipe 8. A limiting ring 14 is fixedly connected to the cylindrical outer wall of the plugging slider 13 and is clamped inside the telescopic chute 12 through the limiting ring 14, and the limiting ring 14 is slidably connected inside the telescopic chute 12. A plugging spring 15 is arranged inside the front end of the plugging slider 13 and is elastically connected inside the pressure relief pipe 8 through the plugging spring 15. After the waste lithium battery inside the storage cabinet 1 catches fire spontaneously, the fire extinguishing agent delivery pipeline 7 and the pressure relief pipe 8 spray the fire extinguishing agent into the storage cabinet 1, so that the air pressure inside the storage cabinet 1 increases, and it is very likely that the storage cabinet 1 will burst, resulting in a greater accident. At this time, the storage cabinet 1 can relieve the internal pressure through the pressure relief pipe 8. When the air pressure inside the storage cabinet 1 increases, the gas pushes the plugging slider 13 inside the pressure relief pipe 8 forward and makes the rear end of the plugging slider 13 completely slide into the telescopic chute 12, so that the storage cabinet 1 can be communicated with the outside through the pressure relief pipe 8 and the telescopic chute 12, and the gas can be exported through the pressure relief pipe 8 and the telescopic chute 12, thereby relieving the internal pressure of the storage cabinet 1 and ensuring the structural stability of the storage cabinet 1 to prevent bursting.

[0032] Preferably, a "convex" shaped pressure relief window 16 is passed through the upper and lower parts of the sealing upper cover 3, and a sealing baffle 17 is clamped inside the upper end of the pressure relief window 16. The four corners of the lower end of the sealing baffle 17 are fixedly connected to the limiting sliding rods 18, and the four corners of the lower end of the sealing upper cover 3 are provided with limiting tube columns 19. The four limiting sliding rods 18 pass through the interior of the sealing upper cover 3 and are slidably connected to the inside of the four limiting tube columns 19 respectively. A plurality of limiting plates 20 are fixedly connected to the cylindrical outer walls of the four limiting tube columns 19. The plurality of limiting plates 20 are distributed in multiple layers from top to bottom, and the plurality of limiting plates 20 on the upper side are tightly fitted with the inner walls of the upper ends of the limiting tube columns 19 respectively. When the used lithium batteries in the storage cabinet 1 explode due to spontaneous combustion, the air pressure inside the storage cabinet 1 will suddenly increase, and it cannot be quickly discharged from the pressure relief pipe 8 and the telescopic slide 12. At this time, the storage cabinet 1 can quickly discharge the interior through the pressure relief window 16. The pressure relief window 16 is opened and the storage cabinet 1 is connected to the outside through the pressure relief window 16, thereby preventing the storage cabinet 1 from bursting.

[0033] Preferably, since the plurality of limiting plates 20 are distributed in multiple layers, the plurality of limiting plates 20 can be broken in stages according to the impact force generated by explosions of different degrees, which can not only adaptively control the opening degree of the upper end of the pressure relief window 16, but also buffer the impact force. At the same time, the sealing plate 17 will not be separated from the sealing upper cover 3 under the connection between the limiting slide rod 18 and the limiting tube column 19, so that the pressure relief window 16 can not only quickly relieve pressure inside the storage cabinet 1, but also prevent fragments generated by the explosion of waste lithium batteries from bursting out from the pressure relief window 16. After the storage cabinet 1 is quickly depressurized, the sealing plate 17 can be stuck into the pressure relief window 16 again under the action of gravity, ensuring that the lithium battery is isolated and preventing the fire from spreading.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions, characterized in that, It includes a storage cabinet body (1), the storage cabinet body (1) has an upward opening and is arranged in a double layer. Moving wheels (2) are provided at the four corners of the lower end of the storage cabinet body (1). A sealed upper cover (3) is rotatably connected to the upper right side of the storage cabinet body (1). A fire extinguishing box (4) is fixedly connected to the outer side of the front end of the storage cabinet body (1). A fixed insertion cylinder (5) is fixedly connected to the center of the front end of the storage cabinet body (1). A water-based fire extinguishing main machine (6) is inserted into the upper end inside the fixed insertion cylinder (5). A fire extinguishing agent delivery pipeline (7) is communicated with the upper right side of the water-based fire extinguishing main machine (6), and the rear end of the fire extinguishing agent delivery pipeline (7) penetrates through the inside of the right side of the storage cabinet body (1). A pressure relief pipe (8) is provided at the lower left corner of the front end of the storage cabinet body (1), and the pressure relief pipe (8) is communicated with the inside of the storage cabinet body (1) and is located below the fire extinguishing box (4).

2. The lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions according to claim 1, characterized in that: A heat-sensitive self-activation closed sprinkler head (9) is communicated with the lower side of the rear end of the fire extinguishing agent delivery pipeline (7). A pressure monitoring sensor (10) is arranged on the upper end of the water-based fire extinguishing main machine (6). An audible and visual alarm (11) is arranged on the upper left side of the fire extinguishing box (4), and the pressure monitoring sensor (10) is connected to the audible and visual alarm (11) through a wire harness.

3. The lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions according to claim 2, characterized in that: A telescopic chute (12) is opened inside the rear side of the cylindrical inner wall of the pressure relief pipe (8), and the telescopic chute (12) is communicated with the outside of the pressure relief pipe (8) through a plurality of flow discharge ports. A plugging slider (13) is slidably connected inside the pressure relief pipe (8).

4. The lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions according to claim 3, characterized in that: A limiting ring (14) is fixedly connected to the cylindrical outer wall of the plugging slider (13), and is clamped inside the telescopic chute (12) through the limiting ring (14), and the limiting ring (14) is slidably connected inside the telescopic chute (12).

5. A lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions according to claim 4, characterized in that: A plugging spring (15) is arranged inside the front end of the plugging slider (13), and is elastically connected inside the pressure relief pipe (8) through the plugging spring (15).

6. The lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions according to claim 1, wherein: A pressure relief window (16) in a "convex" shape penetrates through the upper and lower parts inside the sealed upper cover (3). A blocking plate (17) is clamped inside the upper end of the pressure relief window (16). Limiting slide rods (18) are fixedly connected to the four corners of the lower end of the blocking plate (17).

7. The lithium battery storage cabinet with explosion-proof and automatic fire extinguishing functions according to claim 6, wherein: Limiting pipe columns (19) are arranged at the four corners of the lower end of the sealed upper cover (3). The four limiting slide rods (18) penetrate through the inside of the sealed upper cover (3) and are respectively slidably connected inside the four limiting pipe columns (19). A plurality of limiting pieces (20) are fixedly connected to the cylindrical outer walls of the four limiting pipe columns (19).

8. The explosion-proof and automatic fire extinguishing function lithium battery storage cabinet according to claim 7, characterized in that: The plurality of limiting pieces (20) are distributed in multiple layers from top to bottom, and the plurality of limiting pieces (20) on the uppermost side are respectively in close fit with the inner walls of the upper ends of the limiting pipe columns (19).

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