Energy storage battery thermal runaway multi-parameter coupling early warning and fire extinguishing function energy storage cabinet

Abstract

The application discloses a kind of energy storage battery thermal runaway multi-parameter coupling early warning and fire extinguishing function energy storage cabinet, belongs to energy storage battery cabinet technical field, present and propose the following scheme, it includes energy storage mechanism, the energy storage mechanism is provided with fire extinguishing mechanism, the energy storage mechanism includes battery box, the battery box is provided with multiple partition components, the inner shell of the partition component is provided with electric core, the fire extinguishing mechanism includes fire extinguishing component and multiple fire extinguishing starting components;The application is through the heat dissipation hole of partition component and rectangular hole keeps corresponding, meets battery normal heat dissipation demand, avoids heat accumulation and temperature rise, when the heat of certain electric core in inner shell is abnormally increased, by thermal expansion and contraction principle, make fire extinguishing starting component drive inner shell to move, ensure that rectangular hole is staggered and closes inner shell, so that abnormal high temperature electric core and the rest normal electric core can be quickly physically isolated, effectively block high temperature heat conduction, diffusion to periphery normal electric core, realize the purpose of fault independent isolation, hidden danger individual control.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery cabinet technology, and in particular to an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing functions for thermal runaway of energy storage batteries. Background Technology

[0002] As the core carrier for the integrated layout and safe operation of energy storage battery clusters, the energy storage cabinet is the most significant safety hazard during the operation of the energy storage system due to battery thermal runaway. Overheating of a single cell can easily trigger a chain reaction of thermal runaway in adjacent cells through heat conduction and convection, causing major safety accidents such as fires and explosions. Conventional energy storage cabinets often employ fixed partitions or open ventilation structures, which cannot simultaneously achieve both normal ventilation and high-temperature isolation. Under normal operating conditions, the ventilation and heat dissipation effect is limited, and when a single cell experiences abnormally high temperatures, it cannot quickly achieve independent isolation. The high-temperature heat can easily spread to surrounding cells, triggering a chain reaction of thermal runaway risks. At the same time, traditional fire extinguishing structures are mostly single-point spraying or centralized spraying methods, resulting in poor uniformity of fire extinguishing and cooling. Incomplete local cooling can easily lead to cell reignition. Furthermore, during the fire extinguishing process, the fire extinguishing agent lacks a targeted sealed protection structure, and a large amount of fire extinguishing agent leaks and spreads, which can easily cause corrosion and wetting damage to other battery modules that are operating normally. Moreover, the lack of automatic start-stop control logic for the fire extinguishing agent level can easily lead to problems such as excessive fire extinguishing agent spraying, resource waste, and excessive liquid accumulation inside the cabinet. It is impossible to achieve integrated safety protection of zoned heat insulation, precise and uniform fire extinguishing, leakage prevention, and reignition prevention, which is insufficient to meet the protection requirements for the high-safety operation of energy storage battery clusters.

[0003] To address the above problems, this invention proposes an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing functions for thermal runaway of energy storage batteries. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of conventional energy storage cabinets, which often employ fixed partitions or open ventilation structures, making it difficult to simultaneously achieve normal ventilation and high-temperature isolation. Furthermore, they cannot quickly achieve independent isolation when a single battery cell experiences abnormally high temperatures. Additionally, traditional fire extinguishing structures often employ single-point spraying or centralized spraying methods, resulting in poor uniformity of fire extinguishing and cooling. During fire extinguishing, the fire extinguishing agent lacks a targeted, sealed protective structure, leading to significant leakage and diffusion, which can easily cause corrosion and wetting damage to other normally functioning battery modules. Moreover, the lack of automatic start / stop control logic for the fire extinguishing agent level makes it prone to problems such as excessive fire extinguishing agent spraying, resource waste, and excessive liquid accumulation within the cabinet. Therefore, this invention proposes an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing functions for thermal runaway of energy storage batteries.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery includes an energy storage mechanism, wherein a fire extinguishing mechanism is provided in the energy storage mechanism; The energy storage mechanism includes a battery box, which contains multiple partition components, and the inner shell of each partition component contains battery cells. The fire extinguishing mechanism includes a fire extinguishing component and multiple fire extinguishing activation components. The multiple fire extinguishing components are arranged in the partition component and are also connected to the battery cell. One side of the fire extinguishing component is connected to two diversion components. The diversion components extend into the battery box and are connected to the partition component. Each gear of the diversion component meshes with the toothed plate of multiple liquid level linkage activation components.

[0006] Preferably, the battery box has a cable outlet on one side, a handle on the battery box, and a burst valve on the top of the battery box.

[0007] Preferably, the fire extinguishing assembly includes a fire extinguishing box filled with fire extinguishing agent, the fire extinguishing box being fixedly connected to a mounting plate, and the mounting plate being fixed to the battery box by bolts.

[0008] Preferably, the fire extinguishing box is connected to two control valves, and the fire extinguishing box is provided with a gas valve and an injection end.

[0009] Preferably, the diversion assembly includes a main pipe, which is connected to a control valve via a connector. The main pipe is connected to multiple branch pipes, each branch pipe is equipped with a valve, one end of which is fixedly fitted with a gear. Each branch pipe is connected to a flexible hose.

[0010] Preferably, the separating component includes an outer shell, a crossbeam mounted on the top of the outer shell, multiple compartments on the outer shell, and an inner shell disposed in each of the multiple compartments. The inner shell is provided with an inner cavity, which is in communication with a hose.

[0011] Preferably, both the outer shell and the inner shell have a plurality of rectangular holes on their outer surfaces, and the inner shell has a plurality of sets of heat dissipation holes on its cavity wall. The heat dissipation holes and the rectangular holes are connected to the inner cavity, and each set of heat dissipation holes corresponds to a plurality of rectangular holes, and the number of heat dissipation holes in each set is a plurality.

[0012] Preferably, the liquid level linkage start-up control component includes a mounting sleeve, which is fixedly connected to the inner wall of the inner shell. A movable rod is threaded through the mounting sleeve, and a second spring is fixedly connected between the top end of the movable rod and the mounting sleeve. A conical head is fixedly connected to the bottom end of the movable rod, and a float plate is fixedly connected below the conical head.

[0013] Preferably, a sliding rod is also provided on the mounting sleeve, a toothed plate is fixedly connected to the top of the sliding rod, a first spring is fixedly connected between the top of the sliding rod and the mounting sleeve, a pin opening is provided below the sliding rod, a locking pin is engaged in the pin opening, the locking pin is fixedly connected to the ring frame, and a protrusion is fixedly connected to one side of the ring frame, the protrusion can be moved by the pressure of the conical head; The mounting sleeve is fixedly connected to a fastener, and the fastener is fixedly connected to a first elastic structure, which is fixedly connected to the ring frame.

[0014] Preferably, the fire extinguishing activation assembly includes a heat-conducting shell and two second elastic structures. The heat-conducting shell is fixedly connected to the battery cell. The heat-conducting shell is connected to the outer cylinder through a pipe. A piston rod is provided in the outer cylinder. The piston rod extends out of the outer cylinder and is fixedly connected to a triangular plate. The triangular plate is fixedly connected to the inner wall of the inner shell. Both ends of the second elastic structure are fixedly connected with hinges. Two of the hinges are hinged to two brackets respectively via pins. The two brackets are fixedly connected to the heat-conducting shell. The other two hinges are hinged to both sides of the double-headed hinge frame respectively via pins. The double-headed hinge frame is fixedly connected to the triangular plate.

[0015] Compared with the prior art, the present invention provides an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage batteries, which has the following beneficial effects: 1. This energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery meets the normal heat dissipation requirements of the battery by keeping the heat dissipation holes of the partition component and the rectangular holes in correspondence, thus avoiding heat accumulation and temperature rise. When a cell inside the inner shell experiences an abnormal increase in temperature, the fire extinguishing activation component moves the inner shell through the principle of thermal expansion and contraction, ensuring that the rectangular holes are staggered and the inner shell is closed. This allows for rapid physical isolation of the abnormally high-temperature cell from the other normal cells, effectively blocking the conduction and diffusion of high-temperature heat to the surrounding normal cells, and achieving the purpose of independent fault isolation and separate control of hidden dangers.

[0016] 2. This energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage batteries can open the diversion component by linking the liquid level control component when the inner shell rises, so that the fire extinguishing component delivers the fire extinguishing agent into the inner shell, making the battery cell completely immersed in the fire extinguishing agent. This can achieve targeted fire extinguishing for individual battery cells, while greatly suppressing the accumulation of residual heat and reducing the risk of battery cell reignition. Moreover, the liquid level control component follows the rise of the fire extinguishing agent level, and can close the diversion component according to the height of the fire extinguishing agent level, avoiding excessive fire extinguishing agent spraying and resource waste.

[0017] 3. This energy storage cabinet, featuring multi-parameter coupling early warning and fire extinguishing functions for thermal runaway, ensures stable heat dissipation of the cells under normal conditions through adjustable partition components, preventing passive heat accumulation and reducing the probability of thermal runaway at the source. When cell overheating occurs, the fire extinguishing activation component uses the principle of thermal expansion and contraction to control the partition components to close, blocking heat spread and forming an independent, sealed fire extinguishing chamber to prevent extinguishing agent leakage. This allows fire extinguishing operations to be carried out independently on the faulty cell. Furthermore, when the partition components are closed and adjusted, the liquid level linkage activation component can be linked to automatically open the diversion component. This device releases extinguishing agent into the inner shell of the fire extinguishing assembly, thereby immersing the battery cell in the extinguishing agent to suppress reignition. The device employs physical isolation first, followed by immersion in extinguishing agent, preventing a single battery cell failure from conducting heat to adjacent cells, fundamentally blocking the thermal runaway chain reaction. Moreover, even if the battery cell experiences severe thermal runaway or even valve discharge, the high-temperature gas and electrolyte are confined within the inner cavity and will not spread to other battery cells. Furthermore, it uses a mechanical linkage fire extinguishing method, which does not rely on the electronic control system, and can still operate reliably in extreme scenarios where battery cell thermal runaway leads to power outage. Attached Figure Description

[0018] Figure 1 This is a perspective view of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery, as proposed in this invention. Figure 2 This is a perspective view of the battery box of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage batteries, as proposed in this invention. Figure 3 This is a three-dimensional cross-sectional view of the battery box of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage batteries, as proposed in this invention. Figure 4 This is a perspective view of the partition component of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery, as proposed in this invention. Figure 5 This is a perspective view of the outer shell of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery, as proposed in this invention. Figure 6 This is a perspective view of the inner shell of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery, as proposed in this invention. Figure 7 This is a three-dimensional cross-sectional view of the outer shell of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery, as proposed in this invention. Figure 8 This is a perspective view of a liquid level linkage start-up control component for an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing functions for thermal runaway of an energy storage battery, as proposed in this invention. Figure 9 In this invention Figure 8 Enlarged view of point A; Figure 10 This is a perspective view of the mounting sleeve for an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery, as proposed in this invention. Figure 11 This is a three-dimensional view of the fire extinguishing activation component and battery cell of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery proposed in this invention. Figure 12 This is a cross-sectional perspective view of the fire extinguishing activation component of an energy storage cabinet with multi-parameter coupling early warning and fire extinguishing functions for thermal runaway of an energy storage battery, as proposed in this invention.

[0019] In the diagram: 100, Energy storage mechanism; 101, Battery box; 102, Handle; 103, Cable outlet; 104, Burst valve; 105, Crossbeam; 106, Separator assembly; 1061, Outer shell; 1062, Rectangular hole; 1063, Inner shell; 1064, Heat dissipation hole; 1065, Inner cavity; 107, Battery cell; 200, Fire extinguishing mechanism; 201, Fire extinguishing assembly; 2011, Fire extinguishing box; 2012, Injection end; 2013, Gas valve; 2014, Control valve; 202, Mounting plate; 203, Diverter assembly; 2031, Main pipe; 2032, Branch pipe; 2033, Valve; 2034, Gear; 2035, Hose; 204. Liquid level linkage start-up control assembly; 2041, toothed plate; 2042, slide bar; 2043, first spring; 2044, mounting sleeve; 2045, second spring; 2046, movable rod; 2047, conical head; 2048, fixing part; 2049, float plate; 20410, first elastic structure; 20411, locking pin; 20412, protrusion; 20413, ring frame; 20414, pin hole; 205, fire extinguishing start-up assembly; 2051, heat-conducting shell; 2052, triangular plate; 2053, outer cylinder; 2054, piston rod; 2055, bracket; 2056, hinge; 2057, second elastic structure; 2058, double-headed hinge frame. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1: Refer to Figures 1-8 and Figures 11-12 A multi-parameter coupled early warning and fire extinguishing function for thermal runaway of energy storage battery includes an energy storage mechanism 100, and a fire extinguishing mechanism 200 is provided in the energy storage mechanism 100. The energy storage mechanism 100 includes a battery box 101, with a cable outlet 103 on one side and a handle 102 on the battery box 101. A burst valve 104 is located above the battery box 101. Multiple partition components 106 are provided inside the battery box 101. Each partition component 106 includes an outer shell 1061, a crossbeam 105 mounted on top of the outer shell 1061, and multiple compartments on the outer shell 1061. An inner shell 1063 is provided within each compartment. The heat insulation and flame retardancy of the outer shell 1061 and inner shell 1063 improve heat insulation and reduce fire spread. An inner cavity 1065 is provided within the inner shell 1063. The cavity 1065 is connected to the hose 2035. The outer shell 1061 and the inner shell 1063 are provided with a number of rectangular holes 1062. The cavity wall of the inner shell 1063 is provided with a number of heat dissipation holes 1064. The heat dissipation holes 1064 and the rectangular holes 1062 are connected to the inner cavity 1065. Each group of heat dissipation holes 1064 corresponds to a number of rectangular holes 1062. There are multiple heat dissipation holes 1064 in each group. The inner shell 1063 of the partition component 106 is provided with a battery cell 107. The thermal runaway multi-parameter coupling early warning proposed in this device is achieved by combining and judging multiple signals such as temperature, gas, voltage, and acoustic fingerprint using an algorithm. The fire extinguishing mechanism 200 includes a fire extinguishing component 201 and multiple fire extinguishing activation components 205. Each fire extinguishing activation component 205 includes a heat-conducting shell 2051 and two second elastic structures 2057. The heat-conducting shell 2051 is fixedly connected to the battery cell 107 and is connected to the outer cylinder 2053 via a pipe. A piston rod 2054 is provided in the outer cylinder 2053, extending out of the outer cylinder 2053 and fixedly connected to a triangular plate 2052. The triangular plate 2052 is fixedly connected to the inner wall of the inner shell 1063. Hinges 2056 are fixedly connected to both ends of each second elastic structure 2057. Both the second elastic structure 2057 and the first elastic structure 20410 include a telescopic rod and a spring. The second elastic structure 2057 is steerable, allowing the inner shell 1063 to smoothly ascend. When the second elastic structure 2057 moves downward and passes the minimum retraction stroke, the second elastic structure 2057 can elastically reset, thereby maintaining the stability of the inner shell 1063. Two hinges 2056 are hinged to two supports 2055 respectively by pins. The two supports 2055 are fixedly connected to the heat-conducting shell 2051. The other two hinges 2056 are hinged to both sides of the double-headed hinge frame 2058 respectively by pins. The double-headed hinge frame 2058 is fixedly connected to the triangular plate 2052. Multiple fire extinguishing components 201 are arranged in the partition assembly 106, and the fire extinguishing components 201 are also connected to the battery cell 107. One side of the fire extinguishing component 201 is connected to two diversion components 203. The diversion components 203 extend into the battery box 101 and are connected to the partition assembly 106.

[0023] In this embodiment: the heat dissipation holes 1064 and rectangular holes 1062 of the separator component 106 are kept in correspondence to meet the normal heat dissipation requirements of the battery and avoid heat accumulation and temperature rise. When a certain cell 107 inside the inner shell 1063 experiences an abnormal increase in heat, the gas inside the heat-conducting shell 2051 expands due to the principle of thermal expansion and contraction, which drives the piston rod 2054 to move. The piston rod 2054 drives the triangular plate 2052 to move, so that the inner shell 1063 and the rectangular hole 1062 of the outer shell 1061 are misaligned, ensuring the sealing of the inner shell 1063. This allows the abnormally high temperature cell 107 to be quickly and physically isolated from the other normal cells 107, effectively blocking the conduction and diffusion of high temperature heat to the surrounding normal cells 107, and achieving the purpose of independent fault isolation and separate control of hidden dangers.

[0024] Example 2: Refer to Figures 8-10An energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery includes a fire extinguishing component 201. The fire extinguishing component 201 includes a fire extinguishing box 2011, which is filled with fire extinguishing agent. The fire extinguishing box 2011 is fixedly connected to a mounting plate 202, which is fixed to a battery box 101 by bolts. The fire extinguishing box 2011 is connected to two control valves 2014. The mounting plate 202 is fixed to the battery box 101 by bolts, which facilitates subsequent disassembly. During disassembly, the control valves 2014 can be operated to close, preventing the fire extinguishing agent from leaking out after disassembly. The fire extinguishing box 2011 is provided with a gas valve 2013 and an injection end 2012. The fire extinguishing agent can be injected into the fire extinguishing box 2011 through the injection end 2012, and the injection end 2012 can be provided with a sealing head for sealing to prevent the fire extinguishing agent from leaking out. The diversion assembly 203 includes a main pipe 2031, which is connected to a control valve 2014 via a connector. The connection between the main pipe 2031 and the control valve 2014 is detachable, allowing for easy disassembly of the fire extinguishing assembly 201. The main pipe 2031 is connected to multiple branch pipes 2032, each of which is equipped with a valve 2033. A gear 2034 is fixedly installed at one end of the valve 2033. The branch pipes 2032 are connected to a hose 2035. Each gear 2034 of the diversion assembly 203 meshes with the toothed plates 2041 of multiple liquid level linkage start-up and control assemblies 204. The liquid level linkage start-up control component 204 includes a mounting sleeve 2044, which is fixedly connected to the inner wall of the inner shell 1063. A movable rod 2046 passes through the mounting sleeve 2044. A second spring 2045 is fixedly connected between the top end of the movable rod 2046 and the mounting sleeve 2044. A conical head 2047 is fixedly connected to the bottom end of the movable rod 2046. A float plate 2049 is fixedly connected below the conical head 2047. One side of the float plate 2049 is concave, thereby allowing... To prevent obstruction of the downward movement of the sliding rod 2042 and ensure smooth downward movement of the Akasaka, the mounting sleeve 2044 also has the sliding rod 2042 mounted on it. A toothed plate 2041 is fixedly connected to the top of the sliding rod 2042. A first spring 2043 is fixedly connected between the top of the sliding rod 2042 and the mounting sleeve 2044. The first spring 2043 is pre-stretched and stores elastic potential energy before installation. When the locking pin 20411 disengages from the pin socket 20414, the first spring 2043 drives the sliding rod 2042. The reset mechanism allows the gear plate 2041 and gear 2034 to drive and close the flow divider assembly 203. A pin opening 20414 is provided below the slide rod 2042, and a locking pin 20411 engages within the pin opening 20414. By engaging the locking pin 20411 into the pin opening 20414, the position of the slide rod 2042 can be fixed, preventing the first spring 2043 from resetting. The locking pin 20411 is fixedly connected to the ring frame 20413, and a protrusion 204 is fixedly connected to one side of the ring frame 20413. 12. The protrusion 20412 can be moved by the pressure of the conical head 2047. A fixing member 2048 is fixedly connected to the mounting sleeve 2044. A first elastic structure 20410 is fixedly connected to the fixing member 2048. The first elastic structure 20410 can maintain the position of the ring frame 20413, prevent the locking pin 20411 from disengaging from the pin hole 20414, and ensure the stable positioning of the slide rod 2042. The first elastic structure 20410 is fixedly connected to the ring frame 20413.

[0025] In this embodiment: the rise of the inner shell 1063 can drive the liquid level linkage control component 204 to move, causing the toothed plate 2041 and gear 2034 to open the branch pipe 2032, allowing the fire extinguishing component 201 to deliver the fire extinguishing agent into the inner shell 1063, so that the battery cell 107 is completely immersed in the fire extinguishing agent, thereby achieving targeted fire extinguishing for a single battery cell 107, while greatly suppressing the accumulation of residual heat and reducing the risk of reignition of the battery cell 107. Moreover, after the fire extinguishing agent liquid level rises to a certain height, the float 2049 rises with the liquid level and drives the conical head 2047 to move. The inclined surface of the conical head 2047 squeezes the protrusion 20412, causing the ring frame 20413 to drive the locking pin 20411 to disengage from the pin 20414. At this time, the first spring 2043 drives the slide rod 2042 to move downward, so that the toothed plate 2041 and gear 2034 can close the diversion component 203, avoiding excessive spraying of fire extinguishing agent and waste of resources.

[0026] Example 3: Reference Figures 1-5and Figure 8 A multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery includes an energy storage mechanism 100, which includes a battery box 101. The battery box 101 is provided with a plurality of partition components 106, and the inner shell 1063 of the partition component 106 is provided with a battery cell 107. The fire extinguishing mechanism 200 includes a fire extinguishing component 201 and multiple fire extinguishing activation components 205. The multiple fire extinguishing components 201 are disposed in the partition component 106, and the fire extinguishing components 201 are also connected to the battery cell 107. One side of the fire extinguishing component 201 is connected to two diversion components 203. The diversion components 203 extend into the battery box 101 and are connected to the partition component 106. Each gear 2034 of the diversion component 203 meshes with the toothed plate 2041 of multiple liquid level linkage activation components 204.

[0027] In this embodiment: by setting an adjustable partition component 106, the battery cell 107 can be stably cooled under normal conditions, avoiding passive heat accumulation and reducing the probability of thermal runaway from the source. When the battery cell 107 overheats abnormally, the fire extinguishing activation component 205 uses the principle of thermal expansion and contraction to control the partition component 106 to close, on the one hand blocking the spread of heat, and on the other hand forming an independent and sealed fire extinguishing chamber to prevent the fire extinguishing agent from leaking out, so that the fire extinguishing operation is carried out independently only for the faulty battery cell 107. When the partition component 106 is closed and adjusted, the liquid level linkage activation component 204 can be linked to automatically open the diversion component 203, so that the fire extinguishing component 201 releases... The extinguishing agent is released into the inner shell 1063, thereby immersing the battery cell 107 in the extinguishing agent to suppress reignition. This device uses physical isolation first and extinguishing agent immersion second, so that a single battery cell 107 failure does not have the condition to conduct heat to adjacent battery cells 107, fundamentally blocking the thermal runaway chain reaction. Moreover, even if the battery cell 107 experiences severe thermal runaway or even valve discharge, the high-temperature gas and electrolyte are confined in the inner cavity 1065 and will not spread to other battery cells 107. Secondly, it adopts a mechanical linkage fire extinguishing method, which does not rely on the electronic control system and can still operate reliably in extreme scenarios where the battery cell 107 thermal runaway causes a power outage.

[0028] Working Principle: During fire extinguishing operations, the battery cell 107 heats the internal gas through the heat-conducting shell 2051. The gas's thermal expansion and contraction control the movement of the piston rod 2054. The piston rod 2054 moves the triangular plate 2052 and the inner shell 1063. The second elastic structure 2057 of the triangular plate 2052 rotates upwards. After the second elastic structure 2057 passes its minimum shortened stroke, it automatically rotates upwards and supports the position of the inner shell 1063, causing the rectangular hole 1062 of the inner shell 1063 to be misaligned with the rectangular hole 1062 of the outer shell 1061, maintaining the airtightness of the inner shell 1063. Simultaneously, the upward movement of the inner shell 1063 moves the liquid level linkage control component 204, causing the toothed plate 2041 to drive the gear 2034. The gear 2034 then drives the valve 2033 to open the branch pipe 2. 032, at this time, the extinguishing agent can enter the hose 2035 through the main pipe 2031 and the branch pipe 2032, and be discharged into the inner cavity 1065. Then, it flows into the inner shell 1063 through the heat dissipation hole 1064, so that the battery cell 107 is immersed in the extinguishing agent. When the liquid level of the extinguishing agent rises to a certain height, the float 2049 rises with the liquid level. The float 2049 drives the conical head 2047 to move. The inclined surface of the conical head 2047 squeezes the protrusion 20412. The protrusion 20412 drives the ring frame 20413 to move. The ring frame 20413 drives the locking pin 20411 to disengage from the pin hole 20414. At this time, the first spring 2043 drives the slide rod 2042 to return downward. The slide rod 2042 drives the toothed plate 2041 downward to drive the gear 2034, so that the valve 2033 closes the branch pipe 2032, thereby stopping the output of the extinguishing agent and preventing the extinguishing agent from overflowing.

[0029] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage batteries, comprising an energy storage mechanism (100), characterized in that, The energy storage mechanism (100) is equipped with a fire extinguishing mechanism (200); The energy storage mechanism (100) includes a battery box (101), in which a plurality of partition components (106) are provided, and battery cells (107) are provided in the inner shell (1063) of the partition components (106). The fire extinguishing mechanism (200) includes a fire extinguishing component (201) and multiple fire extinguishing activation components (205). The multiple fire extinguishing components (201) are disposed in the partition component (106), and the fire extinguishing components (201) are also connected to the battery cell (107). One side of the fire extinguishing component (201) is connected to two diversion components (203). The diversion components (203) extend into the battery box (101) and are connected to the partition component (106). Each gear (2034) of the diversion component (203) meshes with the toothed plate (2041) of multiple liquid level linkage activation components (204).

2. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 1, characterized in that, A cable outlet (103) is provided on one side of the battery box (101), a handle (102) is also provided on the battery box (101), and a burst valve (104) is provided on the top of the battery box (101).

3. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 2, characterized in that, The fire extinguishing assembly (201) includes a fire extinguishing box (2011), which is filled with fire extinguishing agent. The fire extinguishing box (2011) is fixedly connected to the mounting plate (202), which is fixed to the battery box (101) by bolts.

4. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 3, characterized in that, The fire extinguishing box (2011) is connected to two control valves (2014), and the fire extinguishing box (2011) is equipped with a gas valve (2013) and an injection end (2012).

5. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 4, characterized in that, The diversion assembly (203) includes a main pipe (2031), which is connected to a control valve (2014) via a connector. The main pipe (2031) is connected to multiple branch pipes (2032), and each branch pipe (2032) is equipped with a valve (2033). A gear (2034) is fixedly installed at one end of the valve (2033), and the branch pipe (2032) is connected to a hose (2035).

6. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 5, characterized in that, The partition assembly (106) includes a housing (1061), a crossbeam (105) is mounted on the top of the housing (1061), the housing (1061) is provided with multiple compartments, and an inner shell (1063) is provided in the multiple compartments. An inner cavity (1065) is provided in the inner shell (1063), and the inner cavity (1065) is connected to a hose (2035).

7. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 6, characterized in that, The outer shell (1061) and the inner shell (1063) are provided with a number of rectangular holes (1062) on their outer surfaces. The inner shell (1063) has multiple sets of heat dissipation holes (1064) on its cavity wall. The heat dissipation holes (1064) and the rectangular holes (1062) are connected to the inner cavity (1065). Each set of heat dissipation holes (1064) corresponds to multiple rectangular holes (1062), and there are multiple sets of heat dissipation holes (1064).

8. The energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of energy storage battery according to claim 6, characterized in that, The liquid level linkage start-up control component (204) includes a mounting sleeve (2044), which is fixedly connected to the inner wall of the inner shell (1063). A movable rod (2046) is provided on the mounting sleeve (2044). A second spring (2045) is fixedly connected between the top end of the movable rod (2046) and the mounting sleeve (2044). A conical head (2047) is fixedly connected to the bottom end of the movable rod (2046), and a float plate (2049) is fixedly connected below the conical head (2047).

9. An energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery according to claim 8, characterized in that, The mounting sleeve (2044) is also provided with a sliding rod (2042). A toothed plate (2041) is fixedly connected to the top of the sliding rod (2042). A first spring (2043) is fixedly connected between the top of the sliding rod (2042) and the mounting sleeve (2044). A pin opening (20414) is provided below the sliding rod (2042). A locking pin (20411) is engaged in the pin opening (20414). The locking pin (20411) is fixedly connected to the ring frame (20413). A protrusion (20412) is fixedly connected to one side of the ring frame (20413). The protrusion (20412) can be moved by the pressure of the conical head (2047). A fastener (2048) is fixedly connected to the mounting sleeve (2044), and a first elastic structure (20410) is fixedly connected to the fastener (2048). The first elastic structure (20410) is fixedly connected to the ring frame (20413).

10. An energy storage cabinet with multi-parameter coupling early warning and fire extinguishing function for thermal runaway of an energy storage battery according to claim 6, characterized in that, The fire extinguishing activation assembly (205) includes a heat-conducting shell (2051) and two second elastic structures (2057). The heat-conducting shell (2051) is fixedly connected to the battery cell (107). The heat-conducting shell (2051) is connected to the outer cylinder (2053) through a pipe. The outer cylinder (2053) is provided with a piston rod (2054). The piston rod (2054) extends out of the outer cylinder (2053) and is fixedly connected to a triangular plate (2052). The triangular plate (2052) is fixedly connected to the inner wall of the inner shell (1063). The second elastic structure (2057) has hinges (2056) fixedly connected to both ends. Two of the hinges (2056) are hinged to two brackets (2055) respectively by pins. The two brackets (2055) are fixedly connected to the heat-conducting shell (2051). The other two hinges (2056) are hinged to both sides of the double-headed hinge frame (2058) respectively by pins. The double-headed hinge frame (2058) is fixedly connected to the triangular plate (2052).

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