Energy storage device with fire extinguishing function

Abstract

The invention relates to the technical field of fire extinguishing of energy storage devices, in particular to an energy storage device with a fire extinguishing function, which comprises a cabinet body, a lining module, a cabinet door, a driving module and a fire extinguishing pool, after the fire-fighting monitoring module monitors a fire, the driving module drives the corresponding lining module to extend out of the energy storage unit cell, the bottom plate is turned over downwards, the bottom opening in the mold frame is opened, and the battery pack falls into the fire extinguishing pool from the bottom opening of the mold frame by means of the gravity of the battery pack. By improving the lining module for loading the battery pack, the falling of the battery pack can be completed without completely pushing the battery pack out of the energy storage device, so that the battery pack can be transferred into the fire extinguishing pool more quickly, the structure is simpler and more efficient, and the stability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting and fire extinguishing of energy storage devices, and in particular to an energy storage device with a fire extinguishing function. Background Art

[0002] An energy storage power station is a facility used to store electrical energy and release it when needed. It plays an important role in regulating electrical energy and improving power supply stability and reliability in the power system.

[0003] The chemical energy of batteries is used to store electrical energy. Common battery types include lithium-ion batteries, lead-acid batteries, and flow batteries. Lithium-ion battery energy storage power stations have the advantages of high energy density, long cycle life, and fast response speed, and are widely used; lead-acid battery energy storage power stations have relatively low costs, but limited energy density and cycle life; flow battery energy storage power stations have the characteristics of large capacity, high safety, and long cycle life, and are suitable for large-scale energy storage scenarios.

[0004] However, the batteries in the above energy storage power stations are prone to fire due to the following factors:

[0005] 1. Battery problems, such as battery thermal runaway, battery aging and battery quality problems;

[0006] 2. Electrical system failure, such as short circuit, overload, overcharge and over discharge;

[0007] 3. Thermal management system failure, such as poor heat dissipation and temperature sensor failure.

[0008] Existing energy storage power station fire extinguishing technologies such as gas fire extinguishing technology, water-based fire extinguishing technology, dry powder fire extinguishing technology and gel fire extinguishing technology are mostly used for fire extinguishing inside energy storage power stations. However, fire extinguishing inside energy storage power stations can easily lead to damage to the mechanical structure and circuit structure inside the energy storage power station, and even worse, damage to adjacent energy storage batteries.

[0009] A Chinese patent with patent application number 202211186816.9 discloses a supercharging energy storage power station bracket and fire protection system. The detection component installed on the support frame monitors the operation status of the battery pack in real time. When an abnormality is detected in the battery pack, the abnormal battery pack is quickly transferred out of the energy storage power station. The time from detecting the abnormality of the battery pack to transferring the battery pack to the water tank for fire extinguishing can reach 4s-7s, which can quickly isolate explosives and protect more normal battery packs.

[0010] Although the above technical solution claims that the battery pack can be transferred to the water reservoir within 4-7 seconds, the entire battery pack still needs to be completely pushed out of the energy storage power station before it can be dropped into the water reservoir for fire extinguishing and isolation, so as to achieve the purpose of quickly isolating the explosive. Therefore, there is an urgent need for a structure with faster transfer speed to realize the transfer of the battery pack. Summary of the invention

[0011] In response to the above problems, the present invention provides an energy storage device with a fire extinguishing function. By improving the lining module for loading the battery pack, the battery pack can be dropped without being completely pushed out of the energy storage device, thereby allowing the battery pack to be transferred to the fire extinguishing pool more quickly. The structure is simpler, more efficient and more stable.

[0012] To achieve the above object, the present invention provides the following technical solutions:

[0013] An energy storage device with fire extinguishing function, comprising:

[0014] Cabinet body, lining module, cabinet door, drive module and fire extinguishing pool;

[0015] The cabinet is a rectangular frame structure, and a plurality of energy storage cells are equidistantly arranged along the height direction of the cabinet, and a fire monitoring module is arranged in the energy storage cell;

[0016] The lining module is arranged in one-to-one correspondence with the energy storage cell, the lining module is loaded with a fixed battery pack, and the lining module includes a mold frame and a bottom plate, the mold frame is arranged in a rectangular parallelepiped, the bottom of the mold frame is arranged with an opening, and the bottom plate is swingably installed at the opening of the mold frame;

[0017] The cabinet door is arranged in one-to-one correspondence with the energy storage cells, the cabinet door rotates and swings, and the cabinet door seals the energy storage cells, and the cabinet door and the corresponding lining module are linked by a hinge group;

[0018] The driving modules drive the corresponding lining modules one by one to slide and telescope in the energy storage cells;

[0019] The fire extinguishing pool is arranged in front of the cabinet, and the fire extinguishing pool is loaded with fire extinguishing solution;

[0020] After the fire monitoring module detects a fire, the driving module drives the corresponding lining module to extend out from the energy storage cell, the bottom plate flips downward, opening the bottom opening on the mold frame, and the battery pack falls from the bottom opening of the mold frame into the fire extinguishing pool by its own gravity.

[0021] As an improvement, the energy storage cell is arranged in a square frame shape, a raised guide track is arranged at the bottom of the energy storage cell, and a charging connector is arranged at the back side of the energy storage cell.

[0022] As an improvement, the bottom plate is provided with a guide groove which cooperates with the guide rail.

[0023] As an improvement, the inner wall surface of the mold frame is provided with an elastic positioning piece for positioning the battery pack.

[0024] As an improvement, a spring sheet is provided at the rotational connection position between the cabinet door and the cabinet body.

[0025] As an improvement, the driving module includes a driver, a rotating shaft, a driving gear, a transmission gear, a lifting rod, a lifter and a rack;

[0026] The driver is installed on the cabinet, and the driver drives the rotating shaft to rotate;

[0027] The driving gears are arranged in one-to-one correspondence with the energy storage cells, the driving gears are all mounted on the rotating shaft, and the driving gears are all driven to rotate by the rotating shaft;

[0028] The transmission gears are arranged in one-to-one correspondence with the driving gears, and the transmission gears mesh with the corresponding driving gears to drive the corresponding liner modules to move telescopically;

[0029] The lifting rod is vertically arranged on the cabinet body, and the transmission gears are installed on the lifting rods. The transmission gears are rotatably arranged relative to the lifting rods. When the lifting rods are lifted and moved, the transmission gears are switched to mesh with the corresponding driving gears.

[0030] The lifter is installed at the bottom of the lifting rod, and the lifter drives the lifting rod to move up and down;

[0031] The rack is arranged in one-to-one correspondence with the transmission gear, and the rack is horizontally arranged on the side wall of the liner module adjacent to the transmission gear.

[0032] As an improvement, along the axial direction of the lifting rod from top to bottom, the spacing between adjacent transmission gears is arranged in an arithmetic progression, and the tolerance d of the arithmetic progression is the thickness of a group of transmission gears.

[0033] As an improvement, the hinge assembly includes a joint, a first connecting rod and a second connecting rod;

[0034] The joint is installed on the inner wall of the corresponding cabinet door;

[0035] The first connecting rod is hingedly connected to the joint;

[0036] The second connecting rod is connected to the corresponding liner module, and the sleeve ring of the second connecting rod is sleeved with the iron ring on the first connecting rod.

[0037] As an improvement, a fire extinguishing solvent supply system is provided in the fire extinguishing pool.

[0038] As an improvement, the fire monitoring module includes a sensor unit, a data processing unit, a communication unit and an alarm unit;

[0039] The sensor unit includes one or more of a temperature sensor, a smoke sensor or a gas sensor;

[0040] The data processing unit includes an analog-to-digital converter and a microcontroller, wherein the analog-to-digital converter is connected to the sensor unit via a signal line, the analog-to-digital converter is connected to the microcontroller via an SPI bus, and the microcontroller is connected to the communication unit via signal transmission;

[0041] The communication unit includes a wired communication module and a wireless communication module;

[0042] The alarm unit comprises an audible and visual alarm, and a control end of the audible and visual alarm is connected to an output pin of a microcontroller.

[0043] The beneficial effects of the present invention are:

[0044] (1) The present invention improves the inner liner module for loading the battery pack, so that the battery pack can be dropped without being completely pushed out of the energy storage device, thereby enabling the battery pack to be transferred to the fire extinguishing pool more quickly, and the structure is simpler, more efficient, and more stable;

[0045] (2) When the driving module is used to push the corresponding lining module out of the energy storage device, the corresponding cabinet door is opened synchronously by the hinge group, so that the lining module can be smoothly extended outward from the energy storage cell. The structure is simple and the reaction is fast, and the battery pack can be quickly output outward without hysteresis.

[0046] (3) The present invention achieves the purpose of driving the corresponding cabinet door and lining module to move by utilizing the lifting and switching of the transmission gear, and the lifting distance of the transmission gear is short, the response is fast, the switching is more sensitive, and the response action can be made quickly.

[0047] In summary, the present invention has the advantages of quick response, short battery pack evacuation time, simple structure, high stability, etc., and is particularly suitable for the technical field of battery pack external disposal fire extinguishing of energy storage devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the three-dimensional structure of the energy storage device of the present invention;

[0049] Figure 2 It is a three-dimensional structural schematic diagram of the cabinet of the present invention;

[0050] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0051] Figure 4 It is a schematic diagram of the three-dimensional structure of the battery pack of the present invention;

[0052] Figure 5 The three-dimensional structure of the liner module of the present invention is shown in FIG. Figure 1 ;

[0053] Figure 6 It is a schematic diagram of the three-dimensional structure of the mold frame of the present invention;

[0054] Figure 7 It is a schematic diagram of the side structure of the cabinet of the present invention;

[0055] Figure 8 This is a schematic diagram of the three-dimensional structure of the charging connector of the present invention;

[0056] Fig. 9 This is a schematic diagram of the three-dimensional structure of the drive module of the present invention;

[0057] Fig.10 The three-dimensional structure of the liner module of the present invention is shown in FIG. Figure 2 ;

[0058] Fig.11 The three-dimensional structure of the liner module of the present invention is shown in FIG. Figure 3 ;

[0059] Fig.12 It is a schematic diagram of the three-dimensional structure of the hinge assembly of the present invention;

[0060] Fig.13 for Fig.12 A magnified schematic diagram of the structure at C in the middle;

[0061] Fig.14 This is a schematic diagram of the three-dimensional structure of the hinge assembly of the cabinet door in the open state of the present invention;

[0062] Fig.15 for Fig.14 A magnified schematic diagram of the structure at B in the middle;

[0063] Fig.16 It is a schematic diagram of the connection structure of the fire monitoring module of the present invention. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0067] Embodiment 1:

[0068] like Figure 1-Figure 11 As shown, an energy storage device with fire extinguishing function comprises:

[0069] Cabinet body 1, lining module 2, cabinet door 3, drive module 4 and fire extinguishing pool 6;

[0070] The cabinet 1 is a rectangular parallelepiped frame structure, and a plurality of energy storage cells 11 are equidistantly arranged along the height direction of the cabinet 1, and a fire monitoring module 7 is arranged in the energy storage cell 11;

[0071] The lining module 2 is arranged in one-to-one correspondence with the energy storage cell 11, and the lining module 2 is loaded with a fixed battery pack 00, and the lining module 2 includes a mold frame 21 and a bottom plate 22, the mold frame 21 is arranged in a rectangular parallelepiped, the bottom of the mold frame 21 is arranged with an opening, and the bottom plate 22 is swingably installed at the opening of the mold frame 21;

[0072] The cabinet door 3 is arranged in one-to-one correspondence with the energy storage cell 11, the cabinet door 3 rotates and swings, and the cabinet door 3 seals the energy storage cell 11, and the cabinet door 3 and the corresponding lining module 2 are linked by a hinge group 5;

[0073] The driving modules 4 drive the corresponding lining modules 2 one by one to slide and telescope in the energy storage cells 11;

[0074] The fire extinguishing pool 6 is arranged in front of the cabinet 1, and the fire extinguishing pool 6 is loaded with a fire extinguishing solution;

[0075] After the fire monitoring module 7 detects a fire, the driving module 4 drives the corresponding lining module 2 to extend out from the energy storage cell 11, the bottom plate 22 flips downward to open the bottom opening on the mold frame 21, and the battery pack 00 falls from the bottom opening of the mold frame 21 into the fire extinguishing pool 6 by its own gravity.

[0076] The frame 1 of the present invention is a metal electrical cabinet. Along the height direction of the cabinet 1, 3-5 groups of energy storage cells 11 are arranged in sequence. In this embodiment, 4 groups of energy storage cells 11 are preferably arranged. A group of battery packs 00 are arranged inside each group of energy storage cells 11. The battery packs 00 are inserted into the energy storage cells 11 through the lining modules 2, and the lining modules 2 are slidably arranged relative to the energy storage cells 11, so that when the battery packs 00 need to be taken out or installed, the lining modules 2 extend directly from the energy storage cells 11.

[0077] It is worth emphasizing that when a fire occurs, the distance that the lining module 2 extends out of the energy storage cell 11 is slightly longer than the normal distance for taking and placing the battery pack. Therefore, when taking and placing the battery pack normally and when a fire occurs, throwing the battery pack out of the energy storage cell 11 forms two movement switching modes for the lining module 2. That is, only when the extension distance reaches a sufficient length, the bottom plate 22 of the lining module 2 will flip downward, opening the gap at the bottom of the mold frame 21, and the battery pack 00 positioned in the lining module 2 will fall downward by gravity, and this sufficient length is more than 1 / 2 of the length of the lining module 2.

[0078] It is further explained that in order to allow the battery pack 00 to fall more smoothly, a space is reserved at one end of the top of the mold frame 21 away from the top of the battery pack 00, so that the battery pack 00 can be flipped over and dropped smoothly, and the reserved space at the top of the mold frame 21 can be used as a heat exchange and heat dissipation area for the battery pack 00 during the charging and discharging process, for air circulation, so that the battery pack 00 can smoothly perform heat exchange and temperature control.

[0079] In addition, the energy storage cell 11 is arranged in a square frame shape, a raised guide track 111 is arranged at the bottom of the energy storage cell 11 , and a charging connector 112 is arranged at the back side of the energy storage cell 11 .

[0080] Correspondingly, the bottom plate 22 is provided with a guide groove 221 that cooperates with the guide rail 111 , and the back of the battery pack 00 is provided with positive and negative electrode connectors that are correspondingly connected to the charging connector 112 .

[0081] When the lining module 2 carries the battery pack 00 and moves outward, the cooperation between the guide groove 221 and the guide rail 111 makes the movement of the lining module 2 more guided and more stable. After the battery pack 00 is inserted into the energy storage cell 11 and is in place, the positive and negative terminals on the battery pack 00 will be interlaced and cooperated with the charging terminals 112 to realize the charging and discharging of the battery pack 00.

[0082] In order to ensure the stability of the battery pack 00 in the lining module 2, the inner wall of the mold frame 21 is provided with an elastic positioning piece 211 for positioning the battery pack 00. The elasticity of the elastic positioning piece 211 is utilized to clamp and position the battery pack 00 so that the battery pack 00 will not shake in the lining module 2.

[0083] A guide rod 20 is provided on the back of the liner module 2 , and the guide rod 20 ensures that the liner module 2 will not fall from the energy storage cell 11 after the mold frame 21 extends to a distance where the battery pack 00 is thrown out.

[0084] Preferably, a spring sheet 31 is provided at the rotational connection position between the cabinet door 3 and the cabinet body 1, so that when the corresponding lining module 2 moves outward from the energy storage cell 11, the cabinet door 3 will be opened first by the spring sheet 31, so that the lining module 2 can be smoothly output from the energy storage cell 11 to the outside.

[0085] like Fig. 9 As shown, as a preferred embodiment, the driving module 4 includes a driver 41, a rotating shaft 42, a driving gear 43, a transmission gear 44, a lifting rod 45, a lifter 46 and a rack 47;

[0086] The driver 41 is installed on the cabinet 1, and the driver 41 drives the rotating shaft 42 to rotate;

[0087] The driving gears 43 are arranged in one-to-one correspondence with the energy storage cells 11, and the driving gears 43 are all mounted on the rotating shaft 42, and the driving gears 43 are all driven to rotate by the rotating shaft 42;

[0088] The transmission gear 44 is arranged in one-to-one correspondence with the driving gear 43, and the transmission gear 44 is meshed with the corresponding driving gear 43 to drive the corresponding liner module 2 to move telescopically;

[0089] The lifting rod 45 is vertically arranged on the cabinet 1, and the transmission gears 44 are installed on the lifting rod 45. The transmission gears 44 are rotatably arranged relative to the lifting rod 45. The lifting rod 45 moves up and down, switching the transmission gears 44 to mesh with the corresponding driving gears 43;

[0090] The lifter 46 is installed at the bottom of the lift rod 45, and the lifter 46 drives the lift rod 45 to move up and down;

[0091] The rack 47 is arranged in a one-to-one correspondence with the transmission gear 44 , and the rack 47 is horizontally arranged on the side wall of the liner module 2 adjacent to the transmission gear 44 .

[0092] Furthermore, along the axial direction of the lifting rod 45 from top to bottom, the spacings between adjacent transmission gears 44 are arranged in an arithmetic progression, and the tolerance d of the arithmetic progression is the thickness of a group of transmission gears 44 .

[0093] The working process of the driving module 4 includes the following steps:

[0094] When the fire monitoring module detects that the corresponding battery pack 00 is abnormal and the battery pack 00 is about to catch fire or explode, the microcontroller in the energy storage device sends a control signal to the lifter 46. After receiving the control signal, the lifter 46 drives the lifting rod 45 to move up and down, so that the transmission gear 44 corresponding to the battery pack 00 is matched with the driving gear 43. Then the driver 41 receives the control signal sent by the microcontroller, so that the driving gear 43 rotates, and through the cooperation of the transmission gear 44 and the rack 47, the lining module 2 where the battery pack 00 is located is driven to move outward and extend out from the energy storage cell 11. When the extension length of the lining module 2 reaches the preset length, the bottom plate 22 at the bottom of the lining module 2 will flip down, so that the battery pack 00 falls downward and directly falls into the fire extinguishing pool 6, completing the fire extinguishing and explosion-proof treatment of the battery pack 00.

[0095] In this embodiment, the driver 41 is preferably a servo motor, and the lifter 46 is preferably an electric telescopic rod.

[0096] Furthermore, if Figure 12-Figure 15 As shown, in order to achieve a fast opening response of the cabinet door 3, the cabinet door 3 and the lining module 2 can be linked by setting the hinge group 5. Specifically, the hinge group 5 includes a joint 51, a first connecting rod 52 and a second connecting rod 53;

[0097] The connector 51 is installed on the inner wall of the corresponding cabinet door 3;

[0098] The first connecting rod 52 is hingedly connected to the joint 51;

[0099] The second connecting rod 53 is connected to the corresponding liner module 2 , and the sleeve ring 531 of the second connecting rod 53 is sleeved with the iron ring 521 on the first connecting rod 52 .

[0100] When the corresponding battery pack 00 needs to be thrown out so that the battery pack 00 can fall into the fire extinguishing pool 6, the cabinet door 3 needs to be opened before the lining module 2, and the cabinet door 3 is opened by relying on the hinge group 5 through the drive module 4. Specifically, when the drive module 4 drives the lining module 2 to move, the first connecting rod 52 and the second connecting rod 53, which were originally in a tensioned state, will relax, so that the cabinet door 3 can be automatically ejected and opened through the spring sheet 31, and when the lining module 2 is inserted into the arc, the cabinet door 3 can be in a closed state by tightening the hinge group 5.

[0101] In addition, a fire extinguishing solvent supply system is provided in the fire extinguishing pool 6, and the fire extinguishing solvent supply system consists of a circulation pipe and a circulation pump group. The circulation pipe is laid at the bottom of the fire extinguishing pool 6, and a circulation pump is provided on the circulation pipe. When the fire extinguishing solvent in the fire extinguishing pool 6 evaporates after long-term use, causing the liquid level to decrease, the fire extinguishing solvent supply system can replenish the corresponding fire extinguishing solvent. In the present application, the fire extinguishing solvent is preferably water.

[0102] Implementation 2:

[0103] The difference between Example 2 of the present invention and Example 1 described with reference to Example 1 is that:

[0104] like Fig.16 As shown, as a preferred embodiment, the fire monitoring module 7 for monitoring the fire condition inside the energy storage device includes a sensor unit 71, a data processing unit 72, a communication unit 73 and an alarm unit 74;

[0105] The sensor unit 71 includes one or more of a temperature sensor, a smoke sensor or a gas sensor;

[0106] The data processing unit 72 includes an analog-to-digital converter and a microcontroller, the analog-to-digital converter is connected to the sensor unit 71 via a signal line, the analog-to-digital converter is connected to the microcontroller via an SPI bus, and the microcontroller is connected to the communication unit 73 via signal transmission;

[0107] The communication unit 73 includes a wired communication module and a wireless communication module;

[0108] The alarm unit 74 includes an audible and visual alarm, and a control end of the audible and visual alarm is connected to an output pin of the microcontroller.

[0109] It should be noted that the monitoring process of the fire monitoring module 7 includes the following steps:

[0110] Step 1: Real-time monitoring:

[0111] Temperature monitoring: Thermistor temperature sensors distributed in key locations such as the inner wall of the energy storage cell and the heat dissipation duct work continuously, converting the sensed temperature changes into resistance value changes, and then outputting corresponding analog electrical signals. Due to their high sensitivity, they can quickly capture even the slightest temperature fluctuations of the battery pack and the surrounding environment;

[0112] Smoke monitoring, photoelectric smoke sensors installed on the top of energy storage cells and other areas prone to smoke accumulation, emit light at all times. Once smoke is generated, smoke particles will scatter light, causing the light intensity received by the photosensitive element to change, thereby generating a corresponding analog electrical signal output to detect the presence of smoke;

[0113] Gas monitoring and electrochemical gas sensors target harmful or flammable gases (such as hydrogen) that may be released by energy storage batteries. They detect current changes caused by electrochemical reactions between gases and electrodes, output analog electrical signals, and accurately determine gas concentrations.

[0114] Step 2: Data collection and preliminary processing:

[0115] Signal conversion: The analog signal output by the sensor is transmitted to the analog-to-digital converter (ADC). The ADC samples the analog signals from the temperature, smoke, and gas sensors at a set sampling frequency and converts them into digital signals to meet the processing requirements of the microcontroller (MCU). The high-precision ADC can effectively reduce data conversion errors and ensure data accuracy.

[0116] Data aggregation: The converted digital signal is quickly transmitted to the MCU through the SPI bus. As the core processing component, the MCU collects various sensor data from the ADC in an orderly manner with its multiple analog input channels. For example, the STM32 series microcontrollers, with their powerful computing power and rich peripheral resources, can efficiently cope with complex data collection tasks.

[0117] Step 3: Data analysis and judgment

[0118] Threshold comparison: The MCU conducts in-depth analysis of the received digital signal and compares the real-time collected data with the preset temperature, smoke concentration and gas concentration thresholds. For example, when the detected temperature exceeds the upper limit of the normal operating temperature range of the battery, or the smoke concentration or gas concentration reaches the dangerous warning value, the next processing flow is entered;

[0119] Abnormal judgment: The MCU makes a comprehensive judgment based on data from multiple sensors. If only a single sensor data is abnormal, it may be a sensor failure. The MCU will mark the fault and continue to monitor. If data from multiple sensors point to abnormalities at the same time, such as a sharp rise in temperature accompanied by an increase in smoke and combustible gas concentrations, the MCU determines that the energy storage battery has an abnormal condition.

[0120] Step 4: Communication and information transmission

[0121] Remote transmission: The data analyzed and processed by the MCU is transmitted to the RS485 communication module through the UART serial port with a specific communication protocol, and then sent to the monitoring host outside the cabinet. With the advantages of strong anti-interference ability and long transmission distance, the RS485 communication interface ensures stable data transmission in complex electromagnetic environments, making it easier for monitoring personnel to grasp the status of the energy storage cabinet in real time.

[0122] On-site interaction: At the same time, if on-site debugging and maintenance personnel need to obtain information, the MCU can interact with the Wi-Fi or Bluetooth module through the SPI or UART interface to achieve short-distance communication with mobile terminals (such as mobile phones and tablets), making it convenient for personnel to quickly view the fire monitoring information of the electrical cabinet.

[0123] Step 5: Alarm and fire execution

[0124] Alarm triggering: When the MCU determines that the energy storage battery is abnormal and reaches the alarm threshold, it immediately sends a control signal to the sound and light alarm through the output pin. After receiving the signal, the sound and light alarm quickly sends out a strong sound and light signal to remind surrounding personnel to pay attention to abnormal conditions in the energy storage cabinet.

[0125] Firefighting start: If the abnormal situation is serious and the conditions for firefighting are met, the MCU outputs a control signal to drive the driver 41 and the lifter 46 to start operation and throw the abnormal battery pack 00 out of the energy storage device.

[0126] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage device with fire extinguishing function, characterized in that: include: Cabinet body (1), lining module (2), cabinet door (3), drive module (4) and fire extinguishing pool (6); The cabinet (1) is a rectangular parallelepiped frame structure, and a plurality of groups of energy storage cells (11) are equidistantly arranged along the height direction of the cabinet (1), and a fire monitoring module (7) is arranged in the energy storage cells (11); The lining module (2) is arranged in one-to-one correspondence with the energy storage cell (11), the lining module (2) is loaded and fixed with the battery pack (00), and the lining module (2) comprises a mold frame (21) and a bottom plate (22), the mold frame (21) is arranged in a rectangular parallelepiped, the bottom of the mold frame (21) is arranged with an opening, and the bottom plate (22) is swingably mounted at the opening of the mold frame (21); The cabinet door (3) is arranged in one-to-one correspondence with the energy storage cells (11); the cabinet door (3) rotates and swings, and the cabinet door (3) seals the energy storage cells (11); the cabinet door (3) and the corresponding lining module (2) are linked via a hinge group (5); The driving modules (4) drive the corresponding lining modules (2) one by one to slide and telescope in the energy storage cells (11); The fire extinguishing pool (6) is arranged in front of the cabinet (1), and the fire extinguishing pool (6) is loaded with a fire extinguishing solution; After the fire monitoring module (7) detects a fire, the driving module (4) drives the corresponding lining module (2) to extend from the energy storage cell (11), the bottom plate (22) flips downward, opens the bottom opening on the mold frame (21), and the battery pack (00) falls from the bottom opening of the mold frame (21) into the fire extinguishing pool (6) by its own gravity.

2. The energy storage device with fire extinguishing function according to claim 1, characterized in that: The energy storage cell (11) is arranged in a square frame shape, a raised guide track (111) is arranged at the bottom of the energy storage cell (11), and a charging connector (112) is arranged at the back side of the energy storage cell (11).

3. The energy storage device with fire extinguishing function according to claim 2, characterized in that: The bottom plate (22) is provided with a guide groove (221) that cooperates with the guide track (111).

4. The energy storage device with fire extinguishing function according to claim 1, characterized in that: The inner wall surface of the mold frame (21) is provided with an elastic positioning piece (211) for positioning the battery pack (00).

5. The energy storage device with fire extinguishing function according to claim 1, characterized in that: A spring sheet (31) is provided at the rotation connection position between the cabinet door (3) and the cabinet body (1).

6. The energy storage device with fire extinguishing function according to claim 1, characterized in that: The driving module (4) comprises a driver (41), a rotating shaft (42), a driving gear (43), a transmission gear (44), a lifting rod (45), a lifter (46) and a rack (47); The driver (41) is installed on the cabinet (1), and the driver (41) drives the rotating shaft (42) to rotate; The driving gears (43) are arranged in one-to-one correspondence with the energy storage cells (11), the driving gears (43) are all mounted on the rotating shaft (42), and the driving gears (43) are all driven to rotate by the rotating shaft (42); The transmission gear (44) is arranged in one-to-one correspondence with the driving gear (43), and the transmission gear (44) is meshed with the corresponding driving gear (43) to drive the corresponding liner module (2) to telescopically move; The lifting rod (45) is vertically arranged on the cabinet (1), and the transmission gear (44) is installed on the lifting rod (45). The transmission gear (44) is rotatably arranged relative to the lifting rod (45). When the lifting rod (45) moves up and down, the transmission gear (44) is switched to mesh with the corresponding driving gear (43); The lifter (46) is installed at the bottom of the lift rod (45), and the lifter (46) drives the lift rod (45) to move up and down; The rack (47) is arranged in one-to-one correspondence with the transmission gear (44), and the rack (47) is horizontally arranged on the side wall of the liner module (2) adjacent to the transmission gear (44).

7. The energy storage device with fire extinguishing function according to claim 6, characterized in that: From top to bottom along the axial direction of the lifting rod (45), the spacing between adjacent transmission gears (44) is arranged in an arithmetic progression, and the tolerance d of the arithmetic progression is the thickness of a group of transmission gears (44).

8. The energy storage device with fire extinguishing function according to claim 1, characterized in that: The hinge assembly (5) comprises a joint (51), a first connecting rod (52) and a second connecting rod (53); The connector (51) is installed on the inner wall of the corresponding cabinet door (3); The first connecting rod (52) is hingedly connected to the joint (51); The second connecting rod (53) is connected to the corresponding lining module (2), and the sleeve ring (531) of the second connecting rod (53) is sleeved with the iron ring (521) on the first connecting rod (52).

9. The energy storage device with fire extinguishing function according to claim 1, characterized in that: A fire extinguishing solvent supply system is arranged in the fire extinguishing pool (6).

10. The energy storage device with fire extinguishing function according to claim 1, characterized in that: The fire monitoring module (7) comprises a sensor unit (71), a data processing unit (72), a communication unit (73) and an alarm unit (74); The sensor unit (71) includes one or more of a temperature sensor, a smoke sensor or a gas sensor; The data processing unit (72) comprises an analog-to-digital converter and a microcontroller, the analog-to-digital converter is connected to the sensor unit (71) via a signal line, the analog-to-digital converter is connected to the microcontroller via an SPI bus, and the microcontroller is connected to the communication unit (73) via signal transmission; The communication unit (73) comprises a wired communication module and a wireless communication module; The alarm unit (74) comprises an audible and visual alarm, the control end of which is connected to an output pin of a microcontroller.

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