A gas source multifunctional energy storage battery cabinet

Abstract

The present invention relates to the technical field of battery packs, in particular to a gas-source multifunctional energy storage battery cabinet, comprising a device body and a cooling control module; the device body comprises a cabinet, a vortex tube, a gas source interface, a fire extinguishing agent storage tank, a heat exchanger and a battery pack storage box; the air inlet pipe of the vortex tube is connected to the gas source interface, the vortex tube comprises a cold outlet pipe and a hot outlet pipe, and the outlet of the cold outlet pipe is connected to a heat dissipation component; the hot outlet pipe is provided with two outlets, which are respectively connected to a first branch pipe and a second branch pipe, the first branch pipe is used to connect to the air inlet of the fire extinguishing agent storage tank, the outlet of the fire extinguishing agent storage tank is connected to a fire extinguishing component, the second branch pipe is used to connect to the heat exchanger, the first branch pipe and the second branch pipe are respectively provided with a first regulating valve and a second regulating valve, and the cooling control module is used to control the opening and closing of the first regulating valve and the second regulating valve according to the temperature data and flame data in the cabinet. The adoption of this scheme can efficiently dissipate heat and reduce the risk of fire.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to an air-source multifunctional energy storage battery cabinet. Background Art

[0002] As the core unit of the energy storage system, the energy storage battery cabinet plays a key role in the storage and release of electric energy in the power system. By balancing the relationship between power supply and demand, it effectively improves the reliability and stability of the energy system, reduces the probability of power grid disasters, and provides an important guarantee for the sustainability of power supply.

[0003] In the prior art, energy storage cabinets generally use modular battery packs as energy storage media. Among them, lithium-ion batteries have become the preferred battery type for energy storage systems due to their high operating voltage (usually 3.2-3.7V), high energy density (up to 150-250Wh / kg), long cycle life (2000-5000 times) and excellent volume energy density (400-700Wh / L). In specific implementations, multiple single cells are connected in series and parallel to form a battery module, and multiple modules are further combined to form a battery cluster, and finally a complete energy storage cabinet system is formed by integrating several battery clusters. When the energy storage cabinet system performs functions on power equipment or performs high-current fast charging, the energy storage battery and cables will generate heat. If the BMS system thermal management fails and the heat dissipation is poor, resulting in excessive temperature, it will cause battery performance degradation, thermal runaway, and even fire and explosion. Although existing energy storage cabinets are usually equipped with fire protection systems, such as total flooding gas fire extinguishing systems, gas fire extinguishing and sprinkler cooling systems, PACK-level fire extinguishing systems, electrochemical energy storage bin fire extinguishing systems, etc., the existing fire protection systems are independent systems that only take effect after the battery catches fire and lack timely intervention in the early stages.

[0004] Therefore, there is an urgent need to develop a gas-source multifunctional energy storage battery cabinet that can intervene in time in the early stages to ensure efficient heat dissipation of the battery pack, minimize the risk of fire, improve the safety and reliability of the system, and control the fire in a timely manner after the fire occurs, while preventing secondary damage to the battery pack caused by the fire-fighting operation. Summary of the invention

[0005] The present invention provides a gas-source multifunctional energy storage battery cabinet, which can intervene in time in the early stage to ensure efficient heat dissipation of the battery pack, minimize the risk of fire, improve the safety and reliability of the system, and control the fire in time after the fire occurs, while preventing secondary damage to the battery pack caused by the fire extinguishing operation.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] An air source multifunctional energy storage battery cabinet comprises a device body and a temperature reduction control module;

[0008] The device body includes a cabinet, a vortex tube, a gas source interface, a fire extinguishing agent storage tank, a heat exchanger and a battery storage box;

[0009] The battery storage boxes are stacked and placed in the cabinet to store the battery packs;

[0010] The air inlet pipe of the vortex tube is connected to the air source interface, the air source interface is used to connect the compressed air source, the vortex tube includes a cold air outlet pipe and a hot air outlet pipe, the air outlet of the cold air outlet pipe is connected to a heat dissipation component, and the cooling and heat dissipation end of the heat dissipation component is arranged in the cabinet and located above the battery storage box;

[0011] The hot air outlet pipe is provided with two air outlets, which are respectively connected with a first branch pipe and a second branch pipe, the first branch pipe is used to connect with the air inlet of the fire extinguishing agent storage tank, the fire extinguishing agent storage tank stores liquid perfluorohexanone, the air outlet of the fire extinguishing agent storage tank is connected with a fire extinguishing component, the fire extinguishing component is used to extinguish the fire of the battery storage box, the second branch pipe is used to connect with the heat exchanger, and the first branch pipe and the second branch pipe are respectively provided with a first regulating valve and a second regulating valve;

[0012] The temperature reduction control module is used to control the opening and closing of the first regulating valve and the second regulating valve according to the temperature data and flame data in the cabinet.

[0013] Furthermore, the heat dissipation component includes a first air supply pipe and a serpentine pipe, the first air supply pipe is connected to the cold air outlet pipe, the air outlet end of the first air supply pipe passes through the side wall of the cabinet, extends into the cabinet and is connected to the serpentine pipe, the serpentine pipe is arranged above the battery pack storage box, and the air outlet end of the serpentine pipe passes through the side wall of the cabinet and extends out of the cabinet.

[0014] Further, the fire extinguishing assembly includes a second gas delivery pipe, a gas distribution pipe, a gas distribution branch pipe, a spray pipe and a spray head;

[0015] The second gas supply pipe is connected with the gas outlet of the fire extinguishing agent storage tank, and the gas outlet of the second gas supply pipe is connected with the gas inlet of the gas distribution pipe, the gas distribution pipe is arranged on the outside of the cabinet, and the gas distribution pipe is arranged around the left, right and rear sides of the cabinet, and the inner wall of the gas distribution pipe is connected with a plurality of gas branch pipes in a circumferential array, and the plurality of gas branch pipes penetrate the side wall of the cabinet inwardly and extend into the cabinet, and the plurality of gas branch pipes are all connected with injection pipes, and the plurality of injection pipes are distributed in the cabinet in a vertical array along the positions of the plurality of gas branch pipes, and the inner wall of the injection pipe is connected with a plurality of nozzles in a vertical array, and the nozzles face the battery storage box.

[0016] Furthermore, the heat exchanger is also connected to a cold air delivery component, and the cold air delivery component includes a third air delivery pipe, a shunt pipe and a shunt branch pipe;

[0017] The air outlet of the second branch pipe is connected to the air inlet end of the heat exchanger, the air inlet of the third air supply pipe is connected to the air outlet of the heat exchanger, the air outlet of the third air supply pipe is connected to the air inlet of the diverter pipe, the diverter pipe is arranged at the rear bottom of the cabinet, the inner side of the diverter pipe is connected to several diverter branch pipes distributed in an array, and the inner ends of the several diverter branch pipes all pass through the rear wall of the cabinet and extend into the cabinet.

[0018] Further, the battery pack storage box includes a storage box body, three slide rails and a battery pack drawer;

[0019] The storage box body is a hollow structure with a placement cavity therein, a drawer opening is opened on the front side wall of the storage box body, the battery pack drawer is slidably fitted in the placement cavity of the storage box body through three-section slide rails, and a handle is fixedly connected to the front side wall of the battery pack drawer.

[0020] Furthermore, it also includes a heat dissipation mechanism, which includes a dustproof component and a pulley component;

[0021] The upper and lower end surfaces of the storage box body are both provided with installation openings, and the dustproof components are provided with two groups respectively located at the two installation openings of the storage box body;

[0022] An installation cavity is provided in the right side wall of the storage box body, the installation cavity is separated from the placement cavity, the pulley assembly is arranged in the installation cavity, and the two groups of dustproof assemblies are jointly controlled to be opened / closed through the pulley assembly.

[0023] Further, the dustproof assembly includes a dustproof sheet, a rotating shaft and a linkage rod;

[0024] The dust-proof sheets are provided in a plurality and are distributed in an array along the front-rear direction of the storage box body, and adjacent dust-proof sheets are fitted with gaps, and both ends of each dust-proof sheet are fixedly connected with a rotating shaft, and the rotating shaft at the left end of each dust-proof sheet is rotatably connected to the storage box body, and the outer end of the rotating shaft at the right end of each dust-proof sheet passes through the placement cavity of the storage box body and extends into the installation cavity and is connected with a linkage rod, and the rotating shaft is rotatably connected to the side wall between the placement cavity and the installation cavity, and the linkage rod is arranged perpendicular to the dust-proof sheet;

[0025] The pulley assembly includes a traction line and a fixed pulley;

[0026] The four corners of the top of the storage box body are all provided with limiting grooves, and the four corners of the bottom of the storage box body are provided with limiting posts corresponding to the limiting grooves, the limiting posts are clamped with the limiting grooves, and the bottom of the limiting posts can abut against the inner bottom wall of the limiting groove;

[0027] Several fixed pulleys are arranged in the installation cavity and are all located on the front side of the dustproof component. The several fixed pulleys are spaced apart in the up and down directions. The traction line is arranged in the installation cavity. The traction line is arranged between the linkage rod and the limiting groove of the head of the lower row and passes around the outer periphery of each fixed pulley. The opposite ends of each linkage rod of the upper and lower rows are fixedly connected to the traction line. One end of the traction line close to the limiting groove passes through the side wall between the installation cavity and the limiting groove, extends into the limiting groove, and is fixedly connected to the rear inner wall of the limiting groove.

[0028] Furthermore, a base is provided at the inner bottom of the cabinet, and four positioning grooves are provided on the base corresponding to four limiting columns at the bottom of the battery storage box, and the limiting columns are engaged with the positioning grooves.

[0029] The principles and advantages of the present invention are:

[0030] 1. Integrated cooling and fire extinguishing: The cabinet in this solution not only has a fire extinguishing function, but also integrates an efficient cooling mechanism. The cold airflow generated by the vortex tube directly acts on the top of the battery pack, and is evenly distributed using a serpentine tube to ensure that the battery pack can be effectively cooled during normal operation. The cooling control module controls the opening and closing of the first regulating valve and the second regulating valve according to the temperature data and flame data in the cabinet, so that the system can take measures in the early stage of the fire or even before the fire to prevent the fire from spreading, and timely intervention can be achieved in the early stage of the fire.

[0031] 2. High-efficiency thermal management: In addition to directly cooling the battery pack by generating cold air through the vortex tube, the design of the heat exchanger and cold air delivery components further enhances the heat dissipation capacity of the system. The air treated by the heat exchanger is reintroduced into the bottom of the cabinet and flows upward, forming natural convection and improving the overall heat dissipation efficiency. The hot air generated by the vortex tube can not only be used to heat the liquid perfluorohexanone stored in the fire extinguishing agent tank to vaporize the liquid perfluorohexanone, but can also enter the heat exchanger through the second branch pipe for secondary utilization, realizing effective energy recovery and reducing energy consumption costs.

[0032] 3. Intelligent monitoring and preventive intervention: The cooling control module controls the opening and closing of the first regulating valve and the second regulating valve according to the temperature data and flame data in the cabinet, providing all-round safety monitoring. Once an abnormal situation (such as temperature rise, flame) is detected, measures can be taken immediately to prevent the occurrence or spread of fire; the cooling control module automatically adjusts the working status of each component according to the collected data (such as starting the vortex tube, adjusting the opening and closing of the first regulating valve and the second regulating valve), realizing intelligent management, which not only improves the response speed, but also reduces the need for human intervention, and enhances the stability and reliability of the system.

[0033] 4. Multi-directional fire extinguishing coverage: The design of the gas distribution pipe and the injection pipe ensures that the perfluorohexanone gas can be evenly sprayed into the battery pack tank from multiple directions, forming a dense fire extinguishing agent spray, quickly suppressing the spread of fire and improving fire extinguishing efficiency. Compared with traditional single-point injection fire extinguishers, this design is better able to cope with complex battery pack layouts and the randomness of possible fire source locations; and perfluorohexanone, as an efficient and clean fire extinguishing agent, can not only quickly suppress the fire when it comes into contact with the flame, but also will not cause damage to electrical equipment, leave no residue, and will not affect the subsequent use of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a closed state of an air-source multifunctional energy storage battery cabinet embodiment 1 of the present invention.

[0035] Figure 2 This is a schematic diagram of the overall structure of an open state of an air-source multifunctional energy storage battery cabinet embodiment 1 of the present invention (first perspective).

[0036] Figure 3 This is a schematic diagram of the overall structure of an open state of an air-source multifunctional energy storage battery cabinet embodiment 1 of the present invention (second viewing angle).

[0037] Figure 4 This is a schematic diagram of the overall structure of an open state of an air-source multifunctional energy storage battery cabinet embodiment 1 of the present invention (third perspective).

[0038] Figure 5 This is a partial cross-sectional view of the cabinet body in Example 1 of an air-source multifunctional energy storage battery cabinet of the present invention.

[0039] Figure 6 This is a partial cross-sectional view of the battery pack storage box in Example 1 of an air-source multifunctional energy storage battery cabinet of the present invention (with the dustproof sheet closed).

[0040] Figure 7 This is a partial cross-sectional view of the battery pack storage box in Example 1 of an air-source multifunctional energy storage battery cabinet of the present invention (with the dustproof sheet opened).

[0041] Figure 8 This is a schematic diagram of the structure of the serpentine curved pipe in Example 2 of an air source multifunctional energy storage battery cabinet of the present invention. DETAILED DESCRIPTION

[0042] The following is further described in detail through specific implementation methods:

[0043] The symbols in the drawings of the specification include: device body 1, cabinet 11, air compressor 12, fire extinguishing agent storage tank 13, heat exchanger 14, base 15, positioning groove 16, vortex tube 2, cold outlet pipe 21, hot outlet pipe 22, first branch pipe 23, second branch pipe 24, battery storage box 3, storage box body 31, three-section slide rail 32, battery drawer 33, installation port 34, limit column 35, limit groove 36, placement cavity 37, installation cavity 38, heat dissipation Component 4, first gas pipe 41, serpentine pipe 42, straight pipe portion 421, U-shaped portion 422, exhaust pipe 423, air outlet 424, fire extinguishing component 5, second gas pipe 51, gas branch pipe 52, gas branch pipe 53, injection pipe 54, nozzle 55, cold air delivery component 6, third gas pipe 61, diversion pipe 62, diversion branch pipe 63, heat dissipation mechanism 7, dustproof sheet 71, rotating shaft 72, linkage rod 73, traction line 74, fixed pulley 75.

[0044] Embodiment 1:

[0045] This embodiment is basically as shown in the attached Figures 1 to 7 As shown:

[0046] An air-source multifunctional energy storage battery cabinet comprises an electrically connected device body 1 and a temperature reduction control module;

[0047] like Figures 1 to 4 As shown, the device body 1 includes a cabinet 11, an air source interface, an air compressor 12, a vortex tube 2, a fire extinguishing agent storage tank 13, a heat exchanger 14 and a battery storage box 3; the battery storage box 3 is stacked and placed in the cabinet 11 for storing the battery pack; a cabinet door is hinged on the front side wall of the cabinet 11, an air inlet is provided at the lower part of the cabinet 11, and an air outlet is provided at the upper part of the cabinet 11. In this embodiment, the positions of the air inlet and the air outlet of the cabinet 11 are also provided with an automatic opening and closing cover plate, which is used to open and close the air inlet and the air outlet, so as to facilitate closing the air inlet and the air outlet during fire extinguishing. Specifically, the cover plate is driven by an electric push rod. When the fire alarm system is activated, the electric push rod will automatically drive the cover plate to close the air inlet and the air outlet. In this embodiment, a pressure relief valve is also provided on the cabinet 11 to balance the pressure inside the cabinet to prevent the pressure rise caused by gas expansion during fire extinguishing.

[0048] The vortex tube 2 is installed on the outside of the cabinet 11, and the air inlet pipe of the vortex tube 2 is connected to the air source interface, and the air source interface is used to connect a compressed air source. In the present embodiment, the compressed air source is provided by the air compressor 12, and the air inlet pipe of the vortex tube 2 is connected to the air compressor 12 through the air source interface. The vortex tube 2 includes a cold air outlet pipe 21 and a hot air outlet pipe 22, and the air outlet of the cold air outlet pipe 21 is connected to a heat dissipation component 4, and the cooling and heat dissipation end of the heat dissipation component 4 is arranged in the cabinet 11 and above the battery storage box 3; in the present embodiment, the model of the vortex tube 2 is RTK-VT.

[0049] The hot air outlet pipe 22 is provided with two air outlets, which are respectively connected with a first branch pipe 23 and a second branch pipe 24, the first branch pipe 23 and the second branch pipe 24 are spaced apart from top to bottom, the first branch pipe 23 is used to connect with the air inlet of the fire extinguishing agent storage tank 13, and the fire extinguishing agent storage tank 13 stores liquid perfluorohexanone, the air outlet of the fire extinguishing agent storage tank 13 is connected with a fire extinguishing component 5, and the fire extinguishing component 5 is used to extinguish the battery storage box 3, the second branch pipe 24 is used to connect with the heat exchanger 14, and the first branch pipe 23 and the second branch pipe 24 are respectively provided with a first regulating valve and a second regulating valve; in this embodiment, the cold air outlet pipe 21 is provided with a third regulating valve.

[0050] It also includes a data acquisition module for collecting temperature data and flame data in the cabinet, and the data acquisition module includes a temperature acquisition module and a flame acquisition module; the temperature acquisition module is used to collect temperature data in the cabinet; the flame acquisition module is used to collect flame data in the cabinet.

[0051] The temperature reduction control module is used to control the opening and closing of the air compressor 12, the first regulating valve and the second regulating valve according to the temperature and flame in the cabinet 11. In this embodiment, the data acquisition module also includes a smoke acquisition module, which is used to collect smoke data in the cabinet 11. The smoke acquisition module detects the smoke data in the cabinet 11, and the temperature reduction control module controls the opening and closing of the air compressor 12, the first regulating valve and the second regulating valve according to the smoke situation in the cabinet 11. In this embodiment, the temperature acquisition module, the flame acquisition module and the smoke acquisition module are all arranged in the cabinet 11.

[0052] Specifically, when a fire is detected by the flame collection module, the system can open the first regulating valve, use the hot air flow generated by the vortex tube 2 to heat the liquid perfluorohexanone in the fire extinguishing agent storage tank 13, so that it can be quickly vaporized and sprayed into the battery pack storage box 3 through the fire extinguishing component 5. Perfluorohexanone, as a clean fire extinguishing agent, will not cause damage to electrical equipment and has no residue, ensuring the safety of the battery pack and the possibility of subsequent use. At the same time, the cold air flow generated by the vortex tube 2 can directly act on the inside of the cabinet 11, especially the area above the battery pack, which helps to reduce the temperature rise caused by the fire, thereby protecting the undamaged battery cells from high temperature and reducing the risk of fire spread. By reasonably allocating the heat and cold energy generated by the vortex tube 2, the system is more efficient in responding to emergencies. The energy at the hot end is used to accelerate the gasification process of perfluorohexanone, while the cold end directly participates in the emergency cooling on site, realizing the maximum utilization of energy.

[0053] When the temperature inside the cabinet 11 exceeds the preset temperature threshold but no fire occurs, the system can turn on the air compressor 12 and the second regulating valve. The vortex tube 2 is not only used to generate cold air flow and guide it to the heat dissipation component 4 for daily heat dissipation of the cabinet 11, but also can guide the hot air flow to the heat exchanger 14 through the second branch pipe 24, thereby realizing the secondary utilization of energy, improving the overall energy efficiency of the system, and reducing unnecessary energy waste.

[0054] like Figure 5 As shown, the heat dissipation assembly 4 includes a first air delivery pipe 41 and a serpentine curved pipe 42. The first air delivery pipe 41 is connected to the cold air outlet pipe 21. The outlet end of the first air delivery pipe 41 penetrates the side wall of the cabinet 11 and extends into the cabinet 11 and is connected to the serpentine curved pipe 42. The serpentine curved pipe 42 is arranged above the battery storage box 3. The outlet end of the serpentine curved pipe 42 penetrates the side wall of the cabinet 11 and extends out of the cabinet 11. In this embodiment, the serpentine curved pipe 42 is installed in the cabinet 11 through a support seat. There are several support seats. The upper ends of the several support seats are fixedly connected to the inner top wall of the cabinet 11, and the lower ends of the support seats are fixedly connected to the top of the serpentine curved pipe 42. The support seat is a hollow structure, so that the serpentine curved pipe 42 is installed above the battery storage box 3. Specifically, the serpentine curved pipe 42 covers the battery storage box 3. Through the serpentine curved pipe 42 of the heat dissipation component 4, the serpentine curved pipe 42 can be arranged in a long path within a limited space, without occupying too much extra space, while ensuring a sufficient cooling length, increasing the contact area and contact time between the cold air and the top of the cabinet, and improving the heat dissipation efficiency. The cold air can form a relatively uniform cold air covering layer above the battery pack storage box 3. The air outlet end of the serpentine curved pipe 42 passes through the side wall of the cabinet 11 and extends out of the cabinet 11, so that the gas after heat exchange can be effectively discharged, reducing the accumulation of condensed water in the cabinet 11 due to temperature difference, and protecting the battery pack from moisture.

[0055] like Figure 5As shown, the fire extinguishing assembly 5 includes a second gas supply pipe 51, a gas branch pipe 52, a gas branch pipe 53, a spray pipe 54, a nozzle 55 and a mounting frame; the second gas supply pipe 51 is connected to the gas outlet of the fire extinguishing agent storage tank 13, specifically, the gas outlet of the fire extinguishing agent storage tank 13 is arranged at the top, and a fourth regulating valve is arranged at the gas outlet of the perfluorohexanone, the gas outlet of the second gas supply pipe 51 is connected to the gas inlet of the gas branch pipe 52, and the gas branch pipe 52 is installed on the outer wall of the cabinet 11 through the mounting frame, and the gas branch pipe 52 is a "concave" structure, and the gas branch pipe 52 is arranged outside the left, right and rear sides of the cabinet 11, and the inner wall of the gas branch pipe 52 is There are several gas branch pipes 53 connected to the array. In the present embodiment, nine gas branch pipes 53 are arranged in an array and distributed on the left, right and rear sides of the cabinet 11. Several of the gas branch pipes 53 penetrate the side wall of the cabinet 11 inwardly and extend into the cabinet 11. Several of the gas branch pipes 53 are connected to injection pipes 54. Several of the injection pipes 54 are vertically arrayed in the cabinet 11 along the positions of the several gas branch pipes 53. In the present embodiment, nine injection pipes 54 are arranged in an array and distributed on the left inner side, right inner side and rear inner side of the cabinet 11. Several nozzles 55 are vertically arrayed on the inner wall of the injection pipe 54, and the nozzles 55 face the battery pack storage box 3. The gas distribution pipe 52 is arranged around the left, right and rear outer walls of the cabinet 11, ensuring that the perfluorohexanone gas can enter the cabinet 11 from multiple directions, so that the perfluorohexanone gas can fill the entire cabinet 11 faster, and achieve all-round coverage of the space around the battery storage box 3. By setting the injection pipe 54, the perfluorohexanone gas can be distributed to each injection pipe 54 in a more uniform manner, thereby achieving more effective fire extinguishing coverage. Through the nozzles 55 arranged in a vertical array on the injection pipe 54, perfluorohexanone can be quickly released when a fire occurs, forming a dense fire extinguishing agent spray, quickly suppressing the spread of fire, and improving fire extinguishing efficiency. The design of the gas distribution pipe 52 and the injection pipe 54 ensures that the perfluorohexanone gas can be evenly sprayed into the battery storage box from multiple directions, forming a dense fire extinguishing agent spray, quickly suppressing the spread of fire, and improving fire extinguishing efficiency.

[0056] like Figure 3 to Figure 4As shown, the heat exchanger 14 is also connected to a cold air delivery assembly 6, and the cold air delivery assembly 6 includes a third air delivery pipe 61, a shunt pipe 62, and a shunt branch pipe 63; the air outlet of the second branch pipe 24 is connected to the air inlet end of the heat exchanger 14, the air inlet of the third air delivery pipe 61 is connected to the air outlet of the heat exchanger 14, the air outlet of the third air delivery pipe 61 is connected to the air inlet of the shunt pipe 62, the shunt pipe 62 is arranged at the rear bottom of the cabinet 11, and the inner side of the shunt pipe 62 is connected to a plurality of array-distributed shunt branches 63, and the inner ends of the plurality of shunt branches 63 all penetrate the rear side wall of the cabinet 11 and extend into the cabinet 11. In this embodiment, the inner end of the shunt pipe 62 blows upward. The hot air output from the second branch pipe 24 of the vortex tube 2 is cooled by the heat exchanger 14 and then enters the shunt pipe 62 arranged at the bottom of the rear side of the cabinet 11 through the third air supply pipe 61, and then is evenly distributed to the inside of the cabinet 11 through several shunt branch pipes 63 distributed in an array. Through the coordinated use of the third air supply pipe 61, the shunt pipe 62 and the shunt branch pipe 63, a large amount of cold air is transported into the cabinet 11, which quickly reduces the operating temperature of the battery pack and drives the cold air at the lower air inlet of the cabinet 11 to enter the cabinet 11 faster and flow upward with natural convection, thereby more effectively taking away the heat generated by the battery pack during operation, thereby improving the heat dissipation efficiency of the entire battery pack.

[0057] like Figure 6 As shown, the battery storage box 3 includes a storage box body 31, three-section slide rails 32 and a battery drawer 33; the storage box body 31 is a cavity structure, and is provided with a placement cavity 37, a drawer opening is provided on the front side wall of the storage box body 31, the battery drawer 33 is slidably matched in the placement cavity 37 of the storage box body 31 through the three-section slide rails 32, and a handle is fixedly connected to the front side wall of the battery drawer 33. In this embodiment, array-distributed vents are provided on the left side wall, right side wall and rear side wall of the storage box body 31, so that the gasified perfluorohexanone can enter the storage box body 31 to extinguish the battery pack. In this embodiment, the battery pack drawer 33 includes a front plate and a mesh frame with an opening at the upper end, the mesh frame is fixedly connected to the rear side wall of the front plate, the handle is fixedly connected to the front side wall of the front plate, a plurality of transverse mesh plates and longitudinal mesh plates are arranged in the mesh frame, the transverse mesh plates and the longitudinal mesh plates are staggered to form a plurality of placement cavities 37 for placing batteries, and the three-section slide rail 32 is provided with two respectively arranged on the left and right side walls of the mesh frame, and the outer side wall of the three-section slide rail 32 is connected to the inner side wall of the storage box body 31. In addition, a lock buckle and a lock hole can be arranged on the front plate of the battery pack drawer 33 and the storage box body 31, which are used for opening and closing the battery pack drawer 33, so as to facilitate the maintenance of the battery. In this embodiment, there is a certain distance between the left and right side walls of the mesh frame of the battery pack drawer 33 and the inner side wall of the placement cavity 37. The design of the battery pack drawer and the slide rail makes it easy to install and disassemble the battery pack, convenient for daily inspection and maintenance, and improves the maintainability of the system.

[0058] like Figure 6 to Figure 7 As shown, it also includes a heat dissipation mechanism 7, which includes a dustproof component and a pulley component; the upper and lower end surfaces of the storage box body 31 are both provided with installation openings 34, and the dustproof component is provided with two groups of two installation openings 34 respectively located at the storage box body 31; the right side wall of the storage box body 31 is provided with an installation cavity 38, and the installation cavity 38 is spaced apart from the placement cavity 37. The pulley assembly is arranged in the installation cavity 38, and the two groups of dustproof components are jointly controlled to open / close through the pulley assembly.

[0059] The dustproof assembly includes a dustproof sheet 71, a rotating shaft 72 and a linkage rod 73; the dustproof sheets 71 are provided in plurality and are distributed in an array along the front and rear direction of the storage box body 31, and there is a gap between adjacent dustproof sheets 71. In this embodiment, the gap between adjacent dustproof sheets 71 can be used for the rotating shaft 72 to drive the dustproof sheets 71 to rotate, and both ends of each dustproof sheet 71 are fixedly connected to the rotating shaft 72. The rotating shaft 72 at the left end of each dustproof sheet 71 is rotatably connected to the storage box body 31, and the rotating shaft 72 at the right end of each dustproof sheet 71 is The outer end of 72 passes through the placement cavity 37 of the storage tank body 31, extends into the installation cavity 38 and is connected to a linkage rod 73, thereby forming an upper and lower row of linkage rods 73 in the installation cavity 38, and the rotating shaft 72 is rotatably connected to the side wall between the placement cavity 37 and the installation cavity 38, and the linkage rod 73 is arranged perpendicular to the dustproof sheet 71; in this embodiment, a vent is opened on the side wall between the installation cavity 38 and the placement cavity 37 corresponding to the vent, so as to facilitate the gasified perfluorohexanone to enter the storage tank body 31 to extinguish the battery pack.

[0060] The pulley assembly includes a traction line 74 and a fixed pulley 75; the four corners of the top of the storage box body 31 are all provided with limiting grooves 36, and the four corners of the bottom of the storage box body 31 are provided with limiting posts 35 corresponding to the limiting grooves 36, and the limiting posts 35 are engaged with the limiting grooves 36, and the bottom of the limiting posts 35 can abut against the inner bottom wall of the limiting grooves 36; several fixed pulleys 75 are arranged in the installation cavity 38, and are all located on the front side of the dustproof assembly, and several of the fixed pulleys 75 are spaced apart in the up and down directions, and the traction line 74 is arranged in the installation cavity 38, and the traction line 74 is arranged at the head of the lower row Between the linkage rod 73 and the limiting groove 36, specifically, the traction line 74 is arranged between the linkage rod 73 at the rear end of the lower row and the limiting groove 36, and is passed around the outer periphery of each fixed pulley 75, and the opposite ends of each linkage rod 73 in the upper and lower rows are fixedly connected to the traction line 74, that is, the inner ends of each linkage rod 73 in the upper and lower rows are fixedly connected to the traction line 74, and the end of the traction line 74 close to the limiting groove 36 passes through the side wall between the installation cavity 38 and the limiting groove 36, extends into the limiting groove 36, and is fixedly connected to the rear inner wall of the limiting groove 36, and the traction line 74 is slidably connected to the side wall between the limiting groove 36 and the installation cavity 38. In this embodiment, the limiting column 35 is detachably connected to the bottom of the storage box body 31, specifically, the limiting column 35 of the battery storage box 3 is threadedly connected to the bottom of the battery storage box 3, by threading the limiting column 35 to the bottom of the battery storage box 3. As Figure 7 As shown, when the battery storage boxes 3 are stacked and placed in the cabinet 11, the battery storage boxes 3 are overlapped in the cabinet 11 from bottom to top, and the adjacent battery storage boxes 3 are clamped by the limit posts 35 and the limit grooves 36. When the limit posts 35 extend into the limit grooves 36, the limit posts 35 abut against the traction wire 74 and drive the traction wire 74 to move downward until the bottom of the limit posts 35 abuts against the inner bottom wall of the limit grooves 36. During the movement of the traction wire 74, the traction wire 74 drives the linkage rod 73 to rotate, thereby driving The corresponding rotating shaft 72 rotates, and the rotating shaft 72 drives the dustproof sheet 71 to rotate, so that the installation openings 34 on the upper and lower end surfaces of the storage box body 31 are opened, which is convenient for the battery pack in the storage box body 31 to dissipate heat. For the top battery pack storage box 3, any limiting column 35 at the bottom of the storage box body 31 can be threadedly removed, and the limiting column 35 can be clamped into the limiting groove 36 connected to the traction line 74, so that the dustproof sheet 71 of the top battery pack storage box 3 can be opened, which is convenient for the top battery pack storage box 3 to dissipate heat.

[0061] When the battery storage box 3 is not placed in the cabinet 11 for use, when several battery storage boxes 3 are overlapped and placed for storage, the traction lines 74 in the battery storage boxes 3 are not affected by external forces by threading the limiting columns 35 corresponding to the limiting grooves 36 connected to the traction lines 74 of the battery storage boxes 3. The dustproof components are in a closed state when overlapped, thereby playing a dustproof role.

[0062] The bottom of the cabinet 11 is provided with a base 15, and four positioning grooves 16 are provided on the base 15 corresponding to the four limiting columns 35 at the bottom of the battery storage box 3, and the limiting columns 35 are engaged with the positioning grooves 16. When the battery storage boxes 3 are stacked and placed in the cabinet 11, one battery storage box 3 is first placed along the positioning groove 16 on the base 15, and the limiting columns 35 at the bottom of the battery storage box 3 are engaged with the positioning grooves 16, so as to position the battery storage box 3 in the cabinet 11, and then the battery storage boxes 3 are sequentially overlapped on the battery storage box 3, and the adjacent battery storage boxes 3 are engaged with each other through the limiting columns 35 and the limiting grooves 36.

[0063] The principles and advantages of the present invention are:

[0064] The temperature acquisition module is used to detect the status inside the cabinet. When the temperature inside the cabinet rises, the system can open the air compressor and the second regulating valve. The vortex tube is not only used to generate cold air flow and guide it to the heat dissipation component, but the cold air flow generated by the vortex tube acts directly on the top of the battery pack through the heat dissipation component, which can effectively take away heat, achieve rapid cooling, achieve efficient heat dissipation, reduce fire risks, improve the safety and reliability of the cabinet system, and can also guide the hot air flow to the heat exchanger through the second branch pipe to achieve secondary utilization of energy and improve the overall energy efficiency of the system.

[0065] When a fire is detected by the flame collection module, the system can turn on the air compressor and the first regulating valve, and use the hot air flow generated by the vortex tube to heat the liquid perfluorohexanone in the fire extinguishing agent tank, so that it can be quickly vaporized and sprayed into the battery pack tank through the fire extinguishing component. Perfluorohexanone, as a clean fire extinguishing agent, will not damage the battery pack and has no residue, ensuring the safety of the battery pack and the possibility of subsequent use. At the same time, the cold air flow generated by the vortex tube can directly act on the inside of the cabinet, especially the area above the battery pack, which helps to reduce the temperature rise caused by the fire, thereby protecting the undamaged battery cells from high temperature, and reducing the risk of fire spread, timely controlling the fire, and preventing the secondary damage of the fire extinguishing operation to the battery pack; by reasonably allocating the heat and cold energy generated by the vortex tube, the system is more efficient in responding to emergencies. The energy at the hot end is used to accelerate the gasification process of perfluorohexanone, while the cold end directly participates in the emergency cooling on site, realizing the maximum utilization of energy.

[0066] The battery cabinet is equipped with a temperature acquisition module, a flame acquisition module and a cooling control module, which can monitor the temperature changes in the cabinet in real time and automatically adjust the working status of the air compressor, the first regulating valve and the second regulating valve according to the preset conditions. This intelligent management method greatly improves the response speed and operation stability of the system and can intervene in the use of the cabinet in a timely manner.

[0067] Embodiment 2:

[0068] Embodiment 2 is basically as attached Figure 8 As shown:

[0069] The basic principle of Example 2 is the same as that of Example 1, with the difference that in Example 2, the serpentine curved pipe 42 includes a plurality of straight pipe portions 421, a U-shaped portion 422 and an exhaust pipe 423, adjacent straight pipe portions 421 are connected through the U-shaped portion 422, the diameter of the exhaust pipe 423 is smaller than the tube diameter of the straight pipe portion 421, and the exhaust pipes 423 are connected to a plurality of U-shaped portions 422, the exhaust pipes 423 are connected to the outer side wall of the U-shaped portion 422, the outer end of the exhaust pipe 423 passes through the side wall of the cabinet and extends out of the cabinet, and the cold air inlet is located at the left port of the serpentine curved pipe 42, wherein an inclined air supply port 424 is provided on the front side wall of the U-shaped portion 422, the air supply port 424 is inclined toward the exhaust pipe 423, and the inclined direction of the air supply port 424 extends to the inner port of the exhaust pipe 423. When cold air enters the serpentine tube from the left port of the serpentine curved tube 42 and is sent into the U-shaped portion 422 by the straight tube portion 421, a certain pressure difference will be formed in the U-shaped portion 422, prompting external hot air to enter the U-shaped portion 422 through the air supply port 424, and the hot air is directly discharged from the cabinet through the exhaust pipe 423, which not only increases the direct contact area between the cold and hot air, but also promotes the effective discharge of hot air, further enhancing the heat dissipation effect.

[0070] Embodiment 3:

[0071] The basic principle of embodiment 3 is the same as that of embodiment 1, except that embodiment 3 further includes a liquid volume prediction module, a liquid volume acquisition module, a liquid volume analysis module and an early warning module;

[0072] The liquid usage prediction module is used to calculate the predicted liquid usage required for the battery packs in the cabinet to ignite according to the total volume of the cabinet interior space, the number of battery packs in the cabinet, the distribution density of the battery packs in the cabinet, the temperature in the cabinet, the temperature of the environment in which the cabinet is located, the current oxygen content percentage in the cabinet, and the hot gas flow rate generated by the vortex tube.

[0073] The calculation formula for the predicted liquid volume is as follows:

[0074]

[0075] In the formula, is the total volume of the cabinet interior space, is the influence coefficient of battery pack quantity and density, is the number of battery packs in the cabinet, is the distribution density of the battery packs in the cabinet, is the temperature influence coefficient, is the temperature inside the cabinet, is the temperature of the environment where the cabinet is located, is the oxygen content influence coefficient, is the current oxygen content percentage in the cabinet, The minimum oxygen concentration required for the perfluorohexanone gas in the cabinet to suppress the flame. The maximum oxygen concentration that needs to be maintained in the cabinet to prevent the spread of fire. is the vortex tube hot gas flow influence coefficient, is the hot gas flow rate generated by the vortex tube, The conversion factor for converting gas volume to liquid volume;

[0076] The liquid volume acquisition module is used to obtain the current liquid volume in the fire extinguishing agent storage tank;

[0077] The liquid volume analysis module is used to analyze the ratio of the current liquid volume in the fire extinguishing agent storage tank to the predicted liquid volume, and generate a ratio result;

[0078] The warning module is used to generate a warning level according to the ratio result, and issue an alarm according to the generated warning level.

[0079] In this embodiment, the influence coefficient of the number and density of battery packs is 0.2, which is used to adjust the additional demand for perfluorohexanone liquid due to the increase in the number and density of battery packs; the temperature influence coefficient is 0.1, which is used to adjust the effect of temperature on the demand for perfluorohexanone liquid; the oxygen content influence coefficient is 0.5, which is used to adjust the effect of oxygen content on the demand for perfluorohexanone liquid; the minimum oxygen content percentage required for perfluorohexanone gas in the cabinet to suppress flames is 12%, which is used to indicate the minimum oxygen content percentage required in the cabinet to ensure that perfluorohexanone gas can effectively suppress flames. If the oxygen content percentage is lower than this, even if there is a fire source, It exists, or it may not be able to maintain combustion due to lack of sufficient oxygen; the maximum oxygen content percentage that needs to be maintained in the cabinet to avoid the spread of flames is 18%, which is used to indicate the maximum oxygen content percentage that must be maintained in the cabinet to avoid the rapid spread or re-ignition of the fire. If this oxygen content percentage is exceeded, the fire risk increases significantly, and more perfluorohexanone gas may be needed to control the fire; the vortex tube hot gas flow influence coefficient is 0.05, which is used to indicate the reduction ratio of the hot gas flow to the perfluorohexanone liquid demand; the conversion coefficient of gas volume to liquid volume is 0.001, which is used to indicate the amount of perfluorohexanone liquid corresponding to a unit volume of gas. In this scheme, the influence coefficient of the number and density of battery packs, the temperature influence coefficient, the oxygen content influence coefficient, the minimum oxygen content percentage required for the perfluorohexanone gas in the cabinet to suppress the flame, the maximum oxygen content percentage that needs to be maintained in the cabinet to avoid the spread of flames, the vortex tube hot gas flow influence coefficient, and the conversion coefficient of gas volume to liquid volume can more accurately predict the required perfluorohexanone liquid dosage, thereby improving the response efficiency of the system and the success rate of fire extinguishing.

[0080] In this embodiment, the current amount of liquid in the fire extinguishing agent storage tank is obtained through a liquid level sensor;

[0081] In this embodiment, the warning level includes a first-level emergency warning, a second-level emergency warning, and a third-level emergency warning; if the ratio of the ratio result is greater than 90% and less than 110%, the current warning level is determined to be a first-level emergency warning, wherein a 10% reserved ratio is reserved to prevent the ratio result generated by the analysis from being different from the actual situation;

[0082] If the ratio of the ratio result is greater than 60% and less than 90%, the current warning level is determined to be a level 2 emergency warning, wherein a 10% reserved ratio is reserved to prevent the ratio result generated by the analysis from being different from the actual situation;

[0083] If the ratio of the ratio result is less than 60%, the current warning level is determined to be a level 3 emergency warning, wherein a 10% reserved ratio is reserved to prevent the ratio result generated by the analysis from being different from the actual situation.

[0084] By introducing a liquid volume analysis module and refining early warning levels, this solution can take appropriate measures under different levels of urgency, thereby effectively managing and preventing potential risks and greatly reducing the risk of fire and the losses it causes.

[0085] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field know all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A gas source multifunctional energy storage battery cabinet, characterized in that: It includes a device body and a temperature reduction control module; The device body includes a cabinet, a vortex tube, a gas source interface, a fire extinguishing agent storage tank, a heat exchanger and a battery storage box; The battery storage boxes are stacked and placed in the cabinet to store the battery packs; The air inlet pipe of the vortex tube is connected to the air source interface, the air source interface is used to connect the compressed air source, the vortex tube includes a cold air outlet pipe and a hot air outlet pipe, the air outlet of the cold air outlet pipe is connected to a heat dissipation component, and the cooling and heat dissipation end of the heat dissipation component is arranged in the cabinet and located above the battery storage box; The hot air outlet pipe is provided with two air outlets, which are respectively connected with a first branch pipe and a second branch pipe, the first branch pipe is used to connect with the air inlet of the fire extinguishing agent storage tank, the fire extinguishing agent storage tank stores liquid perfluorohexanone, the air outlet of the fire extinguishing agent storage tank is connected with a fire extinguishing component, the fire extinguishing component is used to extinguish the fire of the battery storage box, the second branch pipe is used to connect with the heat exchanger, and the first branch pipe and the second branch pipe are respectively provided with a first regulating valve and a second regulating valve; The heat exchanger is also connected to a cold air delivery assembly, which includes a third air delivery pipe, a shunt pipe and a shunt branch pipe; The air outlet of the second branch pipe is connected to the air inlet of the heat exchanger, the air inlet of the third air supply pipe is connected to the air outlet of the heat exchanger, the air outlet of the third air supply pipe is connected to the air inlet of the shunt pipe, the shunt pipe is arranged at the rear bottom of the cabinet, the inner side of the shunt pipe is connected to a plurality of shunt branch pipes distributed in an array, and the inner ends of the plurality of shunt branch pipes all penetrate the rear side wall of the cabinet and extend into the cabinet; The temperature reduction control module is used to control the opening and closing of the first regulating valve and the second regulating valve according to the temperature data and flame data in the cabinet.

2. The air source multifunctional energy storage battery cabinet according to claim 1 is characterized in that: The heat dissipation component includes a first air supply pipe and a serpentine pipe, the first air supply pipe is connected to the cold air outlet pipe, the air outlet end of the first air supply pipe penetrates the side wall of the cabinet, extends into the cabinet and is connected to the serpentine pipe, the serpentine pipe is arranged above the battery storage box, and the air outlet end of the serpentine pipe penetrates the side wall of the cabinet and extends out of the cabinet.

3. The air source multifunctional energy storage battery cabinet according to claim 1 is characterized in that: The fire extinguishing assembly includes a second gas delivery pipe, a gas distribution pipe, a gas distribution branch pipe, a spray pipe and a spray head; The second gas supply pipe is connected with the gas outlet of the fire extinguishing agent storage tank, and the gas outlet of the second gas supply pipe is connected with the gas inlet of the gas distribution pipe, the gas distribution pipe is arranged on the outside of the cabinet, and the gas distribution pipe is arranged around the left, right and rear sides of the cabinet, and the inner wall of the gas distribution pipe is connected with a plurality of gas branch pipes in a circumferential array, and the plurality of gas branch pipes penetrate the side wall of the cabinet inwardly and extend into the cabinet, and the plurality of gas branch pipes are all connected with injection pipes, and the plurality of injection pipes are distributed in the cabinet in a vertical array along the positions of the plurality of gas branch pipes, and the inner wall of the injection pipe is connected with a plurality of nozzles in a vertical array, and the nozzles face the battery storage box.

4. The air source multifunctional energy storage battery cabinet according to claim 1 is characterized in that: The battery pack storage box includes a storage box body, three slide rails and a battery pack drawer; The storage box body is a hollow structure with a placement cavity therein, a drawer opening is opened on the front side wall of the storage box body, the battery pack drawer is slidably fitted in the placement cavity of the storage box body through three-section slide rails, and a handle is fixedly connected to the front side wall of the battery pack drawer.

5. The air source multifunctional energy storage battery cabinet according to claim 4 is characterized in that: Also included is a heat dissipation mechanism, the heat dissipation mechanism including a dustproof component and a pulley component; The upper and lower end surfaces of the storage box body are both provided with installation openings, and the dustproof components are provided with two groups respectively located at the two installation openings of the storage box body; An installation cavity is provided in the right side wall of the storage box body, the installation cavity is separated from the placement cavity, the pulley assembly is arranged in the installation cavity, and the two groups of dustproof assemblies are jointly controlled to be opened / closed through the pulley assembly.

6. The air source multifunctional energy storage battery cabinet according to claim 5 is characterized in that: The dustproof assembly comprises a dustproof sheet, a rotating shaft and a linkage rod; The dust-proof sheets are provided in a plurality and are distributed in an array along the front-rear direction of the storage box body, and adjacent dust-proof sheets are fitted with gaps, and both ends of each dust-proof sheet are fixedly connected with a rotating shaft, and the rotating shaft at the left end of each dust-proof sheet is rotatably connected to the storage box body, and the outer end of the rotating shaft at the right end of each dust-proof sheet passes through the placement cavity of the storage box body and extends into the installation cavity and is connected with a linkage rod, and the rotating shaft is rotatably connected to the side wall between the placement cavity and the installation cavity, and the linkage rod is arranged perpendicular to the dust-proof sheet; The pulley assembly includes a traction line and a fixed pulley; The four corners of the top of the storage box body are all provided with limiting grooves, and the four corners of the bottom of the storage box body are provided with limiting posts corresponding to the limiting grooves, the limiting posts are clamped with the limiting grooves, and the bottom of the limiting posts can abut against the inner bottom wall of the limiting groove; Several fixed pulleys are arranged in the installation cavity and are all located on the front side of the dustproof component. The several fixed pulleys are spaced apart in the up and down directions. The traction line is arranged in the installation cavity. The traction line is arranged between the linkage rod and the limiting groove of the head of the lower row and passes around the outer periphery of each fixed pulley. The opposite ends of each linkage rod of the upper and lower rows are fixedly connected to the traction line. One end of the traction line close to the limiting groove passes through the side wall between the installation cavity and the limiting groove, extends into the limiting groove, and is fixedly connected to the rear inner wall of the limiting groove.

7. The air source multifunctional energy storage battery cabinet according to claim 6 is characterized in that: The bottom of the cabinet is provided with a base, and the base is provided with four positioning grooves corresponding to four limiting columns at the bottom of the battery storage box, and the limiting columns are engaged with the positioning grooves.

Images