Thermal runaway management system, computing device cluster and data center

Abstract

The invention provides a thermal runaway management system, a computing equipment cluster and a data center, the thermal runaway management system is arranged in the computing equipment cluster, the computing equipment cluster comprises at least one cabinet, each cabinet is internally provided with at least one energy storage device, each energy storage device is provided with at least one energy storage unit, and the energy storage units are connected with the computing equipment cluster. The thermal runaway management system comprises a storage device, a transmission assembly and a control assembly, and a cooling medium is stored in the storage device; the transmission assembly comprises a main pipeline, the main pipeline is connected with the storage device, at least one main connecting pipeline is connected to the main pipeline, at least one sub-connecting pipeline is connected to each main connecting pipeline, and the sub-connecting pipelines are connected with the energy storage unit; the control assembly is arranged on the transmission assembly, and at least part of the control assembly is arranged in the energy storage unit, so that when the environment temperature of the energy storage unit is larger than or equal to the thermal runaway temperature of the energy storage unit, the cooling medium enters the energy storage unit through the transmission assembly.

Description

[0001] This application claims the priority of a Chinese patent application titled "A Thermal Runaway Handling Device for Energy Storage Systems" with an application number of 2023116160457 and filed with the Chinese Patent Office on November 29, 2023. The entire content thereof is incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of data centers, and particularly to a thermal runaway management system, a computing device cluster, and a data center. Background Art

[0003] With the development of network and communication technologies, a large number of computing device clusters are concentrated in the data center computer room. The devices in the computing device cluster include physical servers, virtual machines, or distributed computing nodes, etc. Some energy storage units such as batteries are usually set in the data center computer room as backup power supplies for the devices in the data center computer room. During the use of the battery, factors such as overcharging or extrusion are likely to cause the battery temperature to rise sharply, reaching the thermal runaway temperature of the battery, thereby triggering thermal runaway, resulting in fire or even explosion, greatly reducing the use safety of the data center.

[0004] Once thermal runaway occurs in the data center, the prior art usually uses a fire extinguishing medium to cool the data center from the outside. However, the external cooling method can only extinguish the open fire generated by the thermal runaway of the data center, and cannot effectively control the thermal runaway of the internal battery of the data center and the spread of the internal battery runaway. Summary of the Invention

[0005] In view of this, this application provides a thermal runaway management system, a computing device cluster, and a data center, which can control the temperature in the data center in the early stage or the early and middle stages of the occurrence of thermal runaway in the data center, prevent or slow down the occurrence of thermal runaway, and then block the spread of thermal runaway, minimizing the asset loss of the data center.

[0006] In a first aspect, an embodiment of this application provides a thermal runaway management system. The thermal runaway management system is set in a computing device cluster. The computing device cluster includes at least one cabinet, and at least one energy storage device is set in each cabinet. Each energy storage device includes at least one energy storage unit. The thermal runaway management system includes:

[0007] A storage device, in which a cooling medium is stored;

[0008] A transmission component, the transmission component includes a main pipeline, the main pipeline is connected to the storage device, at least one main connection pipeline is connected to the main pipeline, the main connection pipelines correspond to the energy storage devices one by one, at least one sub-connection pipeline is connected to each main connection pipeline, the sub-connection pipelines correspond to the energy storage units one by one, and the sub-connection pipelines are connected to the energy storage units;

[0009] A control component, the control component is disposed on the transmission component, and at least part of the control component is disposed inside the energy storage unit, so that when the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, the cooling medium enters the energy storage unit through the transmission component.

[0010] In the above solution, the thermal runaway management system of the present application is mainly disposed in a computing device cluster, and can be used to prevent or handle the risk of thermal runaway of energy storage units in the computing device cluster, and further avoid the spread of runaway of energy storage units. Specifically, the transmission component of the present application is directly connected to each energy storage unit. By disposing at least part of the control component inside the energy storage unit to detect the ambient temperature of the energy storage unit, and by disposing the control component on the transmission component, when the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, the cooling medium enters the energy storage unit through the transmission component, and the cooling medium exchanges heat with the heat generated inside the energy storage unit to achieve the thermal runaway treatment of the energy storage unit, thereby reducing the temperature of the energy storage unit, avoiding the risk of thermal runaway of the energy storage unit, reducing the risk of fire or even explosion of the energy storage unit, further avoiding the thermal runaway of the energy storage unit from spreading to the surrounding energy storage units and cabinets, effectively blocking the spread of thermal runaway, and reducing the thermal runaway risk of the computing device cluster. It can be understood that the thermal runaway of the energy storage unit refers to the phenomenon that the temperature inside the energy storage unit rises sharply due to the out-of-control chemical reaction, and the thermal runaway temperature of the energy storage unit refers to the critical temperature at which the energy storage unit is about to undergo thermal runaway. When the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, it indicates that the energy storage unit is about to undergo thermal runaway. In the thermal runaway management system of the present application, the control component can be used to detect the ambient temperature inside the energy storage unit and control the cooling medium to enter the energy storage unit through the transmission component. It can be processed in time at the initial stage or when reigniting again when any energy storage unit undergoes thermal runaway, effectively suppressing the thermal runaway and the spread of thermal runaway of the energy storage unit, extinguishing the fire in time, and improving the use safety of the computing device cluster.

[0011] In some possible implementation manners, when the ambient temperature of the energy storage unit is less than the thermal runaway temperature of the energy storage unit, the control component makes the transmission component in a non-conductive state;

[0012] When the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, the control component makes the transmission component in a conducting state.

[0013] In the above solution, by setting the control component to detect the ambient temperature of the energy storage unit and to adjust the state of the transmission component, the transmission component is made to be in a conducting state or a non-conducting state. When the ambient temperature of the energy storage unit detected by the control component is less than the thermal runaway temperature of the energy storage unit, it indicates that the energy storage unit is in a normal state and thermal runaway will not occur. Then the control component is in a non-conducting state, and the cooling medium in the storage device cannot be connected to the inside of the energy storage unit through the transmission component. When the ambient temperature detected by the control component is greater than or equal to the thermal runaway temperature of the energy storage unit, it indicates that the energy storage unit has a risk of thermal runaway or has already experienced thermal runaway. Then the control component is in a conducting state, and the cooling medium in the storage device can be connected to the inside of the energy storage unit through the transmission component and exchange heat with the heat generated inside the energy storage unit, thereby reducing the temperature of the energy storage unit, avoiding the risk of thermal runaway of the energy storage unit, reducing the risk of the energy storage unit catching fire or even exploding, and further preventing the thermal runaway of the energy storage unit from spreading to the surrounding energy storage units and cabinets, effectively blocking the spread of thermal runaway and reducing the risk of thermal runaway.

[0014] In some possible implementation manners, the control component includes a fire detection tube and a container valve. The container valve is arranged on the sub-connection pipeline. One end of the fire detection tube is connected to the container valve, and the other end of the fire detection tube is arranged inside the energy storage unit.

[0015] In the above solution, the present application combines the container valve and the fire detection tube as the control component. The fire detection tube is provided with materials for fire detection, which can expand and burst when heated at a certain temperature. The bursting temperature of the fire detection tube in the present application is set as the thermal runaway temperature of the energy storage unit. The container valve is installed on the sub-connection pipeline as a valve for controlling the conduction or non-conduction of the sub-connection pipeline. The container valve is in a closed state under a constant pressure, then the sub-connection pipeline is in a non-conducting state. When the container valve is under a certain pressure condition, the container valve opens, then the sub-connection pipeline is in a conducting state. During the initial working process of the thermal runaway management system, the ambient temperature of the energy storage unit is relatively low, and the ambient temperature is less than the thermal runaway temperature of the energy storage unit. In this state, the fire detection tube is in a normal unburst state, and the container valve is under a constant pressure and the container valve is in a closed state; if the fire detection tube bursts, it indicates that the energy storage unit has a risk of thermal runaway. At this time, the pressure inside the fire detection tube suddenly drops, and the pressure at one end of the container valve close to the fire detection tube also drops, and the container valve opens, making the sub-connection pipeline in a conducting state, and the cooling medium in the storage device can pass through the transmission component and then into the inside of the energy storage unit to achieve thermal runaway treatment. In some embodiments, the thermal runaway temperature of the energy storage unit is set to 70 °C.

[0016] In some possible embodiments, the energy storage unit includes at least one battery cell group, the battery cell group includes at least one battery cell, and the fire detection tube is disposed on the surface of at least one of the battery cells.

[0017] In the above solution, the fire detection tube is disposed on the surface of the battery cells inside the energy storage unit, so that the fire detection tube can directly detect the temperature of the battery cells and obtain more accurate thermal runaway information, which is beneficial to quickly transporting the cooling medium to the inside of the energy storage unit corresponding to the battery cell with thermal runaway, realizing rapid thermal runaway processing. The battery cell is the smallest independently usable unit in the energy storage system, and it is usually arranged regularly in rows and columns inside the energy storage unit. Preferably, the fire detection tubes surround each battery cell group in sequence and are arranged around the surfaces of all battery cell modules of the battery cell group to monitor the temperatures of all battery cells in the energy storage unit.

[0018] In some possible embodiments, the sub-connection pipeline includes a connected first pipeline and a second pipeline, the first pipeline is disposed outside the energy storage unit, and the second pipeline is disposed inside the energy storage unit.

[0019] In the above solution, the sub-connection pipeline of the present application includes two parts of pipelines, one part of the pipeline is disposed outside the energy storage unit, and one part of the pipeline is disposed inside the energy storage unit. In this way, the cooling medium can be directly transported to the inside of the energy storage unit to achieve heat exchange, improving the processing efficiency of thermal runaway. Preferably, since the control component makes the sub-connection pipeline in a conducting state or a non-conducting state, in this solution, the control component can make the first pipeline and the second pipeline in a connected state or a disconnected state. When the first pipeline and the second pipeline are in a connected state, the sub-connection pipeline is in a conducting state. When the first pipeline and the second pipeline are in a disconnected state, the sub-connection pipeline is in a non-conducting state. The cooling medium can be transmitted to the main pipeline, the main connection pipeline and the first pipeline of the transmission component in the initial state. If the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, the control component makes the first pipeline and the second pipeline communicate, that is, the sub-connection pipeline is in a conducting state, and the cooling medium in the first pipeline can quickly reach the inside of the energy storage unit through the second pipeline, realizing the thermal runaway processing inside the energy storage unit. In this way, when thermal runaway occurs in the energy storage unit, the transmission distance and transmission time of the cooling medium can be shortened, greatly improving the thermal runaway processing efficiency of the energy storage unit.

[0020] In some possible embodiments, the control component includes a temperature sensing element, and the temperature sensing element is disposed inside the second pipeline;

[0021] When the ambient temperature of the energy storage unit is less than the thermal runaway temperature of the energy storage unit, the temperature sensing element blocks the inside of the second pipeline to make the second pipeline in a non-conducting state;

[0022] When the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, the temperature sensing element changes, causing the second pipeline to be in a conducting state.

[0023] In the above solution, the temperature sensing element is used as the control component and is arranged in the second pipeline inside the energy storage unit. The temperature sensing element can not only be used as the detection element for the internal temperature of the energy storage unit, but also as the control element for whether the sub-connection pipeline is conducting. In this way, when the thermal runaway management system starts to work initially, the ambient temperature of the energy storage unit is lower than the thermal runaway temperature of the energy storage unit, and the cooling medium can be pre-transferred to the main pipeline, main connection pipeline, first pipeline and the second pipeline connected to the first pipeline of the transmission component, that is, the cooling medium enters the inside of the energy storage unit before thermal runaway occurs. The presence of the temperature sensing element prevents the cooling medium from flowing out through the transmission component. If the ambient temperature of the energy storage unit is greater than or equal to the thermal runaway temperature of the energy storage unit, the temperature sensing element changes, causing the second pipeline to be in a conducting state, then the cooling medium can flow out from the second pipeline and exchange heat with the inside of the energy storage unit to achieve thermal runaway treatment. The present application further shortens the transmission distance and transmission time of the cooling medium by setting the temperature sensing element, greatly improving the thermal runaway treatment efficiency of the energy storage unit.

[0024] In some possible implementation manners, the temperature sensing element includes a temperature sensing glass bulb and / or a shape memory alloy.

[0025] In the above solution, the temperature sensing glass bulb is sensitive to temperature and can burst after being irradiated by high temperature, thereby realizing the conducting or non-conducting state of the sub-connection pipeline, and realizing the temperature detection of the energy storage unit and controlling whether the cooling medium enters the inside of the energy storage unit. The temperature sensing glass bulb can be customized with any temperature and diameter, so it can be applied to pipelines with different functions and diameters, improving the application scenarios of the temperature sensing element. The shape memory alloy is sensitive to temperature and can produce reversible deformation at different temperatures, thereby making the sub-connection pipeline in a conducting or non-conducting state, realizing the temperature detection of the energy storage unit and controlling whether the cooling medium enters the inside of the energy storage unit. The shape memory alloy can be customized with any shape and deformation temperature, improving the application scenarios of the temperature sensing element.

[0026] In some possible implementation manners, the thermal runaway management system further includes a joint, the joint is arranged on the energy storage unit, and the sub-connection pipeline is detachably connected to the energy storage unit through the joint.

[0027] In the above solution, by setting the joint, the sub-connection pipeline and the energy storage unit can be detachably connected, which is convenient for later maintenance and management.

[0028] In some possible embodiments, the thermal runaway management system further includes a control module and a first regulating valve. The control module is respectively connected to the control component and the first regulating valve, and the first regulating valve is disposed on at least one of the main pipeline, the main connection pipeline, and the sub-connection pipeline.

[0029] In the above solution, the present application sets a control module and a first regulating valve in the thermal runaway management system. The first regulating valve can be, for example, a flow regulating valve. The control module controls the opening degree of the first regulating valve according to the change of the control component, so as to adjust the flow rate of the cooling medium delivered into the energy storage unit, and avoid the abuse of the cooling medium resulting in untimely thermal runaway suppression or waste of the cooling medium. Since the transmission components in the thermal runaway management system of the present application are distributed in a distributed manner and the storage device stores the cooling medium centrally, by disposing the first regulating valve on at least one of the main pipeline, the main connection pipeline, and the sub-connection pipeline, the flow control of different pipelines of the transmission components is realized, so that a relatively small amount of cooling medium stored in the storage device can achieve the thermal runaway suppression of the entire computing device cluster.

[0030] In some possible embodiments, the thermal runaway management system further includes a temperature sensing module for detecting the ambient temperature in any one of the energy storage units, and the temperature sensing module is connected to the control module.

[0031] In the above solution, the present application sets a temperature sensing module in the thermal runaway management system. The temperature sensing module is used to accurately detect the temperature in the energy storage unit. The control module can adjust the flow rate of the cooling medium delivered into the energy storage unit according to the temperature detected by the temperature sensing module, improve the accuracy of thermal runaway suppression, and at the same time avoid the abuse of the cooling medium resulting in untimely thermal runaway suppression or waste of the cooling medium.

[0032] In some possible embodiments, the storage device includes a liquid storage device, the cooling medium is disposed in the liquid storage device, and the liquid storage device is communicated with the main pipeline.

[0033] In the above solution, the present application realizes the storage of the cooling medium by setting a liquid storage device. The cooling medium is centrally pooled, and the amount of cooling medium required to cope with the thermal runaway of 1 to 2 energy storage units can be stored, which can maximize the reduction of the storage demand for the cooling medium.

[0034] In some possible embodiments, the storage device further includes a gas storage device. The gas storage device and the liquid storage device are connected by a pipeline, a second regulating valve is disposed on the pipeline, the gas storage device has a first pressure, the liquid storage device has a second pressure, and the first pressure is greater than the second pressure.

[0035] In the above solution, a gas storage device is provided to supply driving force for transporting the cooling medium in the liquid storage device to the transmission component. Specifically, the gas storage device has a first pressure, and the liquid storage device has a second pressure. The first pressure is greater than the second pressure, and the pressure difference between the first pressure and the second pressure enables the cooling medium in the liquid storage device to be actively transported into the transmission component. In some embodiments, the gas storage device has pressure while the liquid storage device has no pressure. In other embodiments, both the gas storage device and the liquid storage device have pressure, and the pressure in the gas storage device is greater than the pressure in the liquid storage device.

[0036] In some possible implementation manners, a liquid delivery device is provided on the main pipeline, and the liquid delivery device is used to extract the cooling medium in the storage device.

[0037] In the above solution, the liquid delivery device can actively extract the cooling medium in the liquid storage device to realize the transmission of the cooling medium to the transmission component. In some embodiments, the liquid delivery device is a liquid delivery pump.

[0038] In a second aspect, an embodiment of the present application provides a computing device cluster, which includes at least one cabinet. At least one energy storage device is provided in each cabinet, and at least one energy storage unit is included in each energy storage device. The thermal runaway management system described in the first aspect is provided in the computing device cluster.

[0039] In the above solution, when the thermal runaway management system of the present application is applied to the computing device cluster, it can be timely processed at the initial stage or when reigniting occurs when any energy storage unit has a thermal runaway, so that the temperature of the energy storage units in the computing device cluster can be continuously controlled at a relatively low level, suppressing open flames and thermal abuse, effectively suppressing the occurrence and spread of thermal runaway in the computing device cluster, and improving the security of the computing device cluster.

[0040] In a third aspect, an embodiment of the present application provides a data center, which includes at least one computing device cluster. The computing device cluster includes at least one cabinet. At least one energy storage device is provided in each cabinet, and at least one energy storage unit is included in each energy storage device. The thermal runaway management system described in the first aspect is provided in the computing device cluster.

[0041] In the above solution, when the data center of the present application applies the thermal runaway management system described in the first aspect, it can be timely processed at the initial stage or when reigniting occurs when any energy storage unit has a thermal runaway, so that the temperature of the energy storage units in the data center can be continuously controlled at a relatively low level, suppressing open flames and thermal abuse, effectively suppressing the occurrence and spread of thermal runaway in the data center, and improving the security of the data center. Description of the Drawings

[0042] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0043] Figure 1 It is a schematic structural diagram of a data center provided by an embodiment of the present application;

[0044] Figure 2 It is a schematic structural diagram of a computing device cluster provided by an embodiment of the present application;

[0045] Figure 3 It is a schematic structural diagram of a thermal runaway management system provided in a computing device cluster by an embodiment of the present application;

[0046] Figure 4 It is a schematic structural diagram of the interior of an energy storage unit provided by an embodiment of the present application;

[0047] Figure 5 It is a schematic structural diagram of a liquid storage device provided by an embodiment of the present application;

[0048] Figure 6 It is a schematic structural diagram of a thermal management system including a control module provided by an embodiment of the present application;

[0049] Figure 7 It is a schematic structural diagram of another liquid storage device provided by an embodiment of the present application;

[0050] Figure 8 It is a schematic structural diagram of a sub-connection pipeline provided by an embodiment of the present application;

[0051] Figure 9 It is a schematic structural diagram of another sub-connection pipeline provided by an embodiment of the present application;

[0052] Figure 10 It is a schematic structural diagram of a second pipeline provided by an embodiment of the present application;

[0053] Figure 11 It is a schematic structural diagram of a control component including a fire detection tube and a container valve provided by an embodiment of the present application;

[0054] Figure 12 It is a schematic diagram of thermal runaway processing through a control component and a control module provided by an embodiment of the present application;

[0055] Figure 13 It is a schematic structural diagram of a control component including a heat-sensitive glass bulb provided by an embodiment of the present application;

[0056] Figure 14 Another structural schematic diagram of the control component provided by the embodiment of the present application, including a heat-sensitive glass bulb;

[0057] Figure 15 A structural schematic diagram of the cooperative action of the heat-sensitive glass bulb and the control module provided by the embodiment of the present application;

[0058] Figure 16 A structural schematic diagram of the control component provided by the embodiment of the present application, including a shape memory alloy;

[0059] Figure 17 A structural schematic diagram of the cooperative action of the shape memory alloy and the control module provided by the embodiment of the present application;

[0060] Figure 18 A structural schematic diagram of the thermal runaway management system provided by the embodiment of the present application, including a temperature sensing module;

[0061] Figure 19 A structural schematic diagram of the first regulating valve in a non-operating state provided by the embodiment of the present application;

[0062] Figure 20 A structural schematic diagram of the first regulating valve in an operating state provided by the embodiment of the present application.

[0063] In the drawings:

[0064] 10 - Data center;

[0065] 1 - Computing device cluster;

[0066] 11 - Cabinet;

[0067] 12 - Energy storage device;

[0068] 13 - Energy storage unit;

[0069] 131 - Battery cell group; 131a - Battery cell;

[0070] 2 - Storage device;

[0071] 21 - Liquid storage device;

[0072] 22 - Gas storage device;

[0073] 23 - Pipeline;

[0074] 24 - Second regulating valve;

[0075] 25 - Liquid delivery device;

[0076] 26 - First pressure detection device;

[0077] 27 - Second pressure detection device;

[0078] 3 - Transmission component;

[0079] 31 - Main pipeline;

[0080] 32 - Main connection pipeline;

[0081] 33 - Sub - connection pipeline;

[0082] 331 - First pipeline;

[0083] 332 - Second pipeline; 3321 - Second pipeline body; 3322 - Second sub - pipeline;

[0084] 34 - Connector;

[0085] 4 - Control component;

[0086] 41 - Fire detection tube;

[0087] 42 - Container valve;

[0088] 43 - Heat - sensitive glass bulb;

[0089] 44 - Shape memory alloy;

[0090] 5 - Control module;

[0091] 6 - First regulating valve;

[0092] 7 - Bypass valve;

[0093] 8 - Bypass pipeline;

[0094] 9 - Temperature sensing module. Detailed implementation manners

[0095] For a better understanding of the technical solutions of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0096] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0097] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0098] It should be understood that the term "and / or" used herein is merely a description of the associated relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0099] The following briefly explains the concepts involved in the embodiments of the present application:

[0100] A data center refers to a facility specifically used for storing, processing, and distributing a large amount of data. It is usually composed of multiple servers, storage systems, network devices, and other related components that work together to support an organization's data storage, management, and computing needs. A data center can be a physical room, building, or facility, etc.

[0101] A computing device cluster generally refers to a group of interconnected computing devices that work together as a single system to perform complex computing tasks. The devices in the cluster may be physical servers, virtual machines, or distributed computing nodes, which are usually set up inside a data center.

[0102] An energy storage device refers to a complete energy storage system, which includes energy storage units and related control, management, protection, and interface devices. The purpose of the energy storage device is to store electrical energy or other forms of energy for release and use when needed.

[0103] An energy storage unit is the smallest independently usable module that constitutes an energy storage device, and it is usually set in the energy storage device. An energy storage unit is usually a battery pack composed of a certain number of battery cells or modules or cores, as well as a directly connected Battery Management System (BMS) and Power Conditioning System (PCS). The energy storage unit can operate independently or be combined into a larger energy storage system through parallel or series connection.

[0104] A core is the most basic component in a battery system, usually referring to a single electrochemical device responsible for storing and releasing electrical energy.

[0105] A core group is composed of multiple cores and is used to provide higher voltage and capacity. A core group usually consists of several cores, connectors, a Battery Management System (BMS), and a housing, etc.

[0106] A cooling medium refers to a substance used to transfer heat from one substance to another (usually from a device or system to other devices, systems, or the surrounding environment). In the fields of engineering and technology, the cooling medium can be a gas, liquid, or solid, which helps control the temperature by absorbing and carrying heat, thereby protecting the device from overheating damage and ensuring its normal operation.

[0107] A fire detection tube is a device used to automatically detect a fire source and activate a fire extinguishing device. It usually includes a flexible tube made of a non-metallic synthetic material and a semi-soft polymer material for fire detection disposed within the flexible tube. The semi-soft polymer material includes, but is not limited to, polytetrafluoroethylene (PTFE), nylon, polyimide (PI), silicone rubber, etc. The semi-soft polymer material can expand and burst when heated. A container valve is a valve used to control the flow of gas or liquid, which can be installed on a delivery pipeline or a storage container to achieve the flow control of gas or liquid. The container valve is usually used in conjunction with the fire detection tube. When the fire detection tube is heated to the operating temperature due to a fire or other factors, it will soften and burst at the hottest part. The bursting of the fire detection tube causes the pressure inside the tube to drop, and this pressure change triggers the connected container valve to open.

[0108] A heat-sensitive glass bulb is a glass bulb internally storing a special expansion liquid sensitive to heat. The special expansion liquid is a high-expansion-rate liquid that boils at a low temperature, such as esters, alcohols, and ethers can be selected. The material of the glass bulb can be, for example, borosilicate glass, and the heat-sensitive glass bulb bursts when it reaches a certain set temperature. As the temperature near the heat-sensitive glass bulb rises, the special expansion liquid inside the glass bulb expands due to heat and the pressure increases. When the temperature of the special expansion liquid reaches the set temperature, the heat-sensitive glass bulb bursts.

[0109] Shape Memory Alloys (SMA) is a special alloy material that has a unique physical property - the shape memory effect. This effect enables the alloy to return to its original shape when it reaches a specific temperature.

[0110] Internet service providers, enterprise platforms, research institutions, etc. all have a large number of computing requirements. A job platform that bears requirements such as storage, computing, and networking is called a data center. Figure 1 The structural schematic diagram of the data center is shown. Please refer to Figure 1 , within the data center 10, multiple computing device clusters 1 are provided to store, process, and distribute a large amount of data information. Figure 2 The structural schematic diagram of the computing device cluster 1 is shown. Usually, a backup power supply needs to be set in the computing device cluster 1. The backup power supply can provide electrical energy for the computing device cluster within the data center in the event of a power outage of the commercial power. It can be understood thatFigure 2 Only a part related to the backup power supply in the computing device cluster is shown.

[0111] Please continue to refer to Figure 2 As shown, the computing device cluster 1 includes at least one cabinet 11. At least one energy storage device 12 is arranged in each cabinet 11, and at least one energy storage unit 13 is arranged in each energy storage device 12. The energy storage unit 13 may include at least one element such as a battery or an inductor that can store electrical energy. During the use of the computing device cluster 1, due to its own factors or external factors, the energy storage unit 13 in the computing device cluster 1 may undergo thermal runaway after reaching a certain temperature. The energy storage unit 13 will quickly release energy within a short period of time. For example, when a lithium battery undergoes an external short circuit, the battery will quickly heat up at a power of several kilowatts, reach the thermal runaway trigger temperature within dozens of seconds, and then continue the rapid energy release process, resulting in the possibility of the battery exhausting gas, catching fire or even exploding. If thermal runaway is not suppressed, the high temperature, open fire, etc. generated by the battery will spread inside or between the cabinets 11, thereby triggering thermal runaway of more energy storage units 13, leading to thermal runaway of the entire data center 10. Since the energy storage unit 13 is arranged inside the computing device cluster 1 and further inside the cabinet 11, simply performing sprinkler fire protection treatment from outside the data center 10, outside the computing device cluster 1 or outside the cabinet 11, the working medium of the sprinkler only contacts the surface of the cabinet 11 for heat exchange and blocks oxygen, only playing a certain role in extinguishing open fire, and cannot effectively make the working medium of the sprinkler contact the energy storage unit 13, and cannot suppress thermal runaway from the root cause. Moreover, once thermal runaway occurs inside the computing device cluster 1, the temperature will quickly rise in a short period of time, resulting in a very large local instantaneous power, and it is very likely to catch fire directly within a few seconds. The thermal runaway spreads rapidly, resulting in a further increase in the difficulty of thermal runaway treatment, thereby causing serious fires in the computing device cluster 1 or even the data center 10.

[0112] In view of this, an embodiment of the present application provides a thermal runaway management system, which is used to be arranged inside the data center 10 and further in the computing device cluster 1 of the data center 10. This thermal runaway management system can directly act on the energy storage unit 13 inside the computing device cluster 1, can quickly identify the thermal runaway occurrence site in the early stage of thermal runaway, and further take suppression measures in the early stage or the early and middle stages of thermal runaway occurrence, prevent or slow down the occurrence of thermal runaway, and then block the spread of thermal runaway, improve the use safety of the computing device cluster 1 and the data center 10, and minimize the asset losses of the computing device cluster 1 and the data center 10.

[0113] The following will specifically describe the thermal runaway management system provided by the embodiment of the present application with reference to the specific drawings.

[0114] Figure 3The structural schematic diagram of setting a thermal runaway management system in the computing device cluster provided by the embodiment of the present application is shown. Please refer to Figure 3 , the thermal runaway management system includes a storage device 2, a transmission component 3, and a control component 4. Among them, the storage device 2 is connected to the transmission component 3, the control component 4 is arranged on the transmission component 3, and at least part of the control component 4 is arranged inside the energy storage unit 13. The storage device 2 stores a cooling medium (the cooling medium is not shown in Figure 2 ), the transmission component 3 is used to transport the cooling medium in the storage device 2, at least part of the control component 4 is arranged inside the energy storage unit 13 to detect the ambient temperature inside the energy storage unit 13, the control component 4 is arranged on the transmission component 3, and controls whether the cooling medium can enter the inside of the energy storage unit 13 through the transmission component 3, so that when the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the cooling medium enters the inside of the energy storage unit 13 through the transmission component 3, realizing the thermal runaway treatment of the energy storage unit 13 by the cooling medium. The present application can control whether the cooling medium enters the inside of the energy storage unit 13 through the transmission component 3 and the control component 4 according to the ambient temperature of the energy storage unit 13, and can effectively suppress thermal runaway and thermal runaway propagation in the early stage or the early and middle stages of thermal runaway, improving the use safety of the computing device cluster 1 and the data center 10.

[0115] In the present application, the thermal runaway temperature of the energy storage unit 13 is set to the self-heating starting temperature of the energy storage unit 13. In the early stage of thermal runaway, as the thermal runaway temperature rises and reaches the self-heating starting temperature, from this temperature, the active substances inside the energy storage unit 13 begin to have obvious exothermic reactions. In this stage, various reactions occur overlapped and last for a long time. By setting the thermal runaway temperature of the energy storage unit 13 to the self-heating starting temperature of the energy storage unit 13, the present application can perform thermal runaway treatment in the early stage of thermal runaway, and at the same time can provide enough time for the cooling medium of the thermal runaway management system to be transported to the energy storage unit 13, reducing the spread of thermal runaway. Optionally, the thermal runaway temperature of the energy storage unit 13 is set to 70 °C. Of course, the thermal runaway threshold temperatures of energy storage units 13 of different models or materials are different, and those skilled in the art can set the thermal runaway temperature according to a specific energy storage unit 13, and the present application does not limit this here.

[0116] In the present application, the ambient temperature of the energy storage unit 13 refers to the temperature of the energy storage unit 13 itself during operation or the ambient air temperature where the energy storage unit 13 is located.

[0117] In some embodiments, Figure 4 The structural schematic diagram inside the energy storage unit is shown. Please refer to Figure 4, at least one battery cell group 131 is arranged in each energy storage unit 13, and each battery cell group 131 includes at least one battery cell 131a. The cooling medium can be directly transported to the battery cell 131a through the transmission component 3 to realize the thermal runaway treatment of the battery cell 131a, which can fundamentally solve the thermal runaway problem of the energy storage unit 13 and reduce the spread of thermal runaway at the same time. It can be understood that in the computing device cluster 1, the battery cell 131a is the smallest unit for storing electrical energy and supplying power.

[0118] In some embodiments, Figure 5 The structural schematic diagram of a liquid storage device is shown. Please refer to Figure 5 , the storage device 2 includes a liquid storage device 21 and a cooling medium stored in the liquid storage device 21. The cooling medium refers to a substance that can transfer heat with the heat generated by the energy storage unit 13 to lower the temperature of the energy storage unit 13. In this application, the cooling medium can be, for example, perfluoromethylcyclohexanone, hydrofluoroether, hydrocarbon oil, silicone oil, fluorinated hydrocarbon and other substances.

[0119] In some embodiments, the transmission methods of the cooling medium in the liquid storage device 21 to the transmission component 3 include the following two:

[0120] In some embodiments, please continue to refer to Figure 5 , a liquid delivery device 25 is arranged on the transmission component 3. The liquid delivery device 25 generates negative pressure by mechanical or electric power, so that the cooling medium in the liquid storage device 21 enters the transmission component 3 under the action of negative pressure to realize the delivery of the cooling medium. In some embodiments, the liquid delivery device 25 includes a liquid delivery pump.

[0121] Optionally, the thermal runaway management system further includes a control module 5. Figure 6 The structural schematic diagram of the thermal management system including the control module is shown. Please refer to Figure 6 , the control module 5 is respectively connected to the control component 4 and the liquid delivery device 25. When the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the control component 4 controls the cooling medium to enter the energy storage unit 13 through the transmission component 3 to realize the treatment of thermal runaway. At the same time, the control module 5 controls the opening and opening degree of the liquid delivery device 25, so as to control the transmission flow rate of the cooling medium.

[0122] In some other embodiments, Figure 7 The structural schematic diagram of another liquid storage device is shown. Please refer to Figure 7, the storage device 2 further includes a gas storage device 22 with a certain pressure inside. The liquid storage device 21 and the gas storage device 22 are connected through a pipeline 23, and the pressure inside the liquid storage device 21 is less than the pressure inside the gas storage device 22. In this way, the gas storage device 22 can deliver a certain pressure to the liquid storage device 21 to provide power for the cooling medium in the liquid storage device 21 to enter the transmission component 3. Specifically, a second regulating valve 24 is provided on the pipeline 23. The second regulating valve 24 can be, for example, a pressure reducing valve. By adjusting the opening degree of the pressure reducing valve, the pressure delivered by the gas storage device 22 to the liquid storage device 21 can be adjusted, and further the flow rate of the cooling medium delivered from the liquid storage device 21 to the transmission component 3 can be adjusted.

[0123] Optionally, please continue to refer to Figure 7 , a first pressure detection device 26 and a second pressure detection device 27 are also provided on the pipeline 23. The first pressure detection device 26 is used to detect the pressure inside the liquid storage device 21, and the second pressure detection device 27 is used to detect the pressure inside the gas storage device 22. The pressure inside the liquid storage device 21 can be accurately regulated through the combination of the second regulating valve 24, the first pressure detection device 26, and the second pressure detection device 27.

[0124] In this embodiment, a certain pressure is always maintained in the liquid storage device 21, so there is always a certain pressure difference between the liquid storage device 21 and the transmission component 3, enabling the cooling medium in the liquid storage device 21 to be automatically transmitted into the main pipeline 31. That is, when the computing device cluster 1 is not undergoing heat treatment, there can also be a certain amount of cooling medium in the transmission component 3. In this way, when the computing device cluster 1 experiences a thermal runaway, the distance and time for transmitting the cooling medium from the liquid storage device 21 to the transmission component 3 are saved, greatly improving the efficiency of thermal runaway handling.

[0125] Optionally, the gas storage device 22 stores a gas with a certain pressure, such as an inert gas. The inert gas can be, for example, nitrogen. Exemplarily, the volume of the gas storage device 22 is 40L, and 0.95 kg of nitrogen is stored in the gas storage device 22. By measuring the pressure P1 inside the gas storage device 22 with the second pressure detection device 27 as 2 MPa, and by adjusting the opening degree of the pressure reducing valve, the pressure P2 measured by the first pressure detection device 26 is 0.1 MPa. Then, the pressure delivered by the gas storage device 22 to the liquid storage device 21 is 0.1 MPa, that is, the pressure inside the liquid storage device 21 is 0.1 MPa. At this time, the pressure inside the gas storage device 22 changes to 1.2 MPa. The present application can adjust the opening degree of the pressure reducing valve according to the required pressure inside the liquid storage device 21, and further adjust the transmission flow rate of the cooling medium in the liquid storage device 21 to the transmission component.

[0126] Please continue to refer to Figure 3, the transmission component 3 includes a main pipeline 31, a main connection pipeline 32, and a sub-connection pipeline 33. The number of main pipelines 31 is one. The main pipeline 31 is connected to the storage device 2, so that the cooling medium in the storage device 2 can enter the main pipeline 31 as needed. At least one main connection pipeline 32 is connected to the main pipeline 31. The main connection pipelines 32 correspond to the energy storage devices 12 one by one, that is, at least one main connection pipeline 32 is connected to one side of the main pipeline 31 to form a primary transmission hierarchical distribution. At least one sub-connection pipeline 33 is connected to each main connection pipeline 32. The sub-connection pipelines 33 correspond to the energy storage units 13 one by one, and the sub-connection pipelines 33 are internally connected to the energy storage units 13. The connection pipeline assembly 32 includes at least one main connection pipeline 321. The at least one main connection pipeline 321 is respectively connected to the main pipeline 31. The number of main connection pipelines 321 corresponds to the number of energy storage devices 12. The installation positions of the main connection pipelines 321 correspond to the positions of the energy storage devices 12 one by one to form a secondary transmission hierarchical distribution. By setting the transmission component 3 in this application, the cooling medium can be brought into contact with each energy storage unit 13 in the computing device cluster 1. When the environmental temperature detected by the control component 4 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, it indicates that the energy storage unit 13 is about to experience thermal runaway or has already experienced thermal runaway. The cooling medium in the storage device 13 can exchange heat with the inside of the energy storage unit 13 through the transmission component 3 to directly implement thermal runaway treatment for the energy storage unit 13. Moreover, in this application, the cooling medium in the storage device 2 is directly transported to the corresponding energy storage unit 13, realizing the centralized pooling of the cooling medium, which can accurately respond to the local thermal runaway of the computing device cluster 1 and avoid the problem of resource waste caused by large-area spraying of the cooling medium on the computing device cluster 1.

[0127] In this application, the pipeline flow rate of the main pipeline 31 is greater than that of the main connection pipeline 32, and the pipeline flow rate of the main connection pipeline 32 is greater than that of the sub-connection pipeline 33. There is no limit to the pipeline flow rates of the main pipeline 31, the main connection pipeline 32, and the sub-connection pipeline 33 in this application, as long as it is ensured that there is sufficient flow rate in the sub-connection pipeline 33 to achieve the purpose of thermal runaway treatment.

[0128] Optionally, Figure 8 A schematic structural diagram of a sub-connection pipeline is shown. Please refer to Figure 8 , the sub-connection pipeline 33 is arranged outside the energy storage unit 13. One end of the sub-connection pipeline 33 is connected to the energy storage unit 13, so that the cooling medium in the sub-connection pipeline 33 can be directly transported to the inside of the energy storage unit 13 to come into contact with the battery cell 131a for heat exchange.

[0129] Optionally, please continue to refer to Figure 8, the thermal management system further includes a connector 34 provided on the energy storage unit 13. The connector 34 is used to detachably connect the sub-connection pipeline 33 and the energy storage unit 13. Exemplarily, the sub-connection pipeline 33 and the energy storage unit 13 are threadedly connected through the connector 34. Preferably, one end of the sub-connection pipeline 33 is provided with a connector that is used in cooperation with the connector 34. Through the cooperation of the connector 34 and the connector, the sub-connection pipeline 33 and the energy storage unit 13 are detachably connected, which is convenient for later maintenance management and can also improve the sealing performance at the connection between the sub-connection pipeline 33 and the energy storage unit 13.

[0130] Optionally, Figure 9 The structural schematic diagram of another sub-connection pipeline is shown. Please refer to Figure 9 , the sub-connection pipeline 33 includes a connected first pipeline 331 and a second pipeline 332. The first pipeline 331 is arranged outside the energy storage unit 13, and the second pipeline 332 is arranged inside the energy storage unit 13. The second pipeline 332 is in contact with any one of the battery cell groups 131. The number of the second pipelines 332 includes a plurality, and the plurality of second pipelines 332 are all connected to the first pipeline 331.

[0131] In some embodiments, when the energy storage unit 13 does not undergo thermal runaway, the cooling medium can be stored in the liquid storage device 21 and is distributed in the main pipeline 31, the main connection pipeline 32 and the first pipeline 331, and can also be distributed in some of the second pipelines 332, but will not flow out from the second pipelines 332. When any one of the battery cells 131a in the energy storage unit 13 undergoes thermal runaway, the cooling medium in the liquid storage device 21 flows out from the second pipeline 332 and is transported to the surface of the battery cell 131a that undergoes thermal runaway for heat exchange, thereby realizing the treatment of thermal runaway. In this application, through the arrangement of the first pipeline 331 and the second pipeline 332, the treatment position of thermal runaway is made more precise, and the treatment can be carried out in the early stage of thermal runaway of the energy storage unit 13, reducing the spread of thermal runaway inside the energy storage unit 13, further reducing the spread of thermal runaway between energy storage units 13, reducing the occurrence of open flames, and improving the thermal runaway treatment efficiency.

[0132] Optionally, Figure 10 The structural schematic diagram of a second pipeline is shown. Please refer to Figure 10, the second pipeline 332 includes a second pipeline body 3321 and at least one second sub-pipeline 3322. The second pipeline body 3321 corresponds one-to-one with the position and quantity of the battery cell group 131. The quantity of the second sub-pipelines 3322 is the same as the quantity of the battery cells 131a in the battery cell group 131 and corresponds one-to-one in position. In this way, the second pipeline 332 can be accurately corresponded with each battery cell 131a. When any battery cell 131a in the energy storage unit 13 has a thermal runaway, the cooling medium in the liquid storage device 21 can enter the second sub-pipeline 3322 in contact with the thermally runaway battery cell 131a through the first pipeline 331 and the second pipeline body 3321. The cooling medium in the second sub-pipeline 3322 flows through the surface of the battery cell 131a, and efficiently takes away the heat of the battery cell 131a through the boiling heat transfer process, achieving the purpose of controlling the temperature of the battery cell 131a and fundamentally solving the occurrence of thermal runaway of the battery cell 131a. In this application, through the setting of the second sub-pipeline 3322, the treatment position of thermal runaway is further refined, and it can be processed at the early stage of thermal runaway of the battery cell 131a, and the thermally runaway battery cell 131a can be processed in a short time, reducing the heat transfer from the thermally runaway battery cell 131a to other battery cell modules, reducing the occurrence of open flames, and improving the efficiency of thermal runaway treatment.

[0133] In this application, the control component 4 controls the state of the transmission component 3, so that the transmission component 3 is in a conducting state or a non-conducting state. When the ambient temperature of the energy storage unit 13 is less than the thermal runaway temperature of the energy storage unit 13, the control component 4 makes the transmission component 3 in a non-conducting state. In this state, the cooling medium cannot enter the interior of the energy storage unit 13 through the transmission component 3. When the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the control component 4 makes the transmission component 3 in a conducting state. In this state, the cooling medium can enter the interior of the energy storage unit 13 through the transmission component 3 to achieve thermal runaway management.

[0134] If the transmission component 3 is in a conducting state, the main pipeline 31, the main connecting pipeline 32 and the sub-connecting pipeline 33 can all allow the cooling medium to flow through. If the transmission component 3 is in a non-conducting state, at least one of the main pipeline 31, the main connecting pipeline 32 and the sub-connecting pipeline 33 cannot allow the cooling medium to flow through. Preferably, in order to improve the delivery efficiency of the cooling medium to the energy storage unit 13, when the transmission component 3 is in a non-conducting state, the main pipeline 31 and the main connecting pipeline 32 can allow the cooling medium to flow through, and the sub-connecting pipeline 33 cannot allow the cooling medium to flow through.

[0135] Taking the case where when the transmission component 3 is in a non-conducting state, the main pipeline 31 and the main connecting pipeline 32 can allow the cooling medium to flow through, and the sub-connecting pipeline 33 cannot allow the cooling medium to flow through as an example, the adjustment of the state of the transmission component 3 by the control component 4 is introduced.

[0136] In some embodiments, the control component 4 includes a fire detection tube 41 and a container valve 42. Figure 11 The structural schematic diagram of a control component 4 is shown. Please refer to Figure 11 , one end of the fire detection tube 41 is connected to the container valve 42, and the container valve 42 is arranged on the sub-connection pipeline 33. Preferably, the container valve 42 is arranged on the second pipeline 332. Further preferably, the container valve 42 is located on the second sub-pipeline 3322 ( Figure 11 only the structural schematic diagram of the container valve 42 arranged on the sub-connection pipeline 33 is shown), to achieve the conduction state or non-conduction state of the sub-connection pipeline 33. The other end of the fire detection tube 41 is inside the energy storage unit 13, and is used to detect the ambient temperature inside the energy storage unit 13.

[0137] Optionally, the fire detection tube 41 is made of a semi-soft polymer material for fire detection, which can expand and burst when heated. The container valve 42 is a kind of valve. In its initial working state, the container valve 42 includes upper and lower parts, and the upper and lower parts are in a pressure balance state. A sealing structure and a rubber gasket are arranged inside the valve body of the container valve 42 to isolate the upper and lower parts, thereby blocking the outlet of the container valve 42. When the fire detection tube 41 is heated and bursts, the pressure inside the fire detection tube 41 suddenly drops, and the pressure at one end of the container valve 42 close to the fire detection tube 41 also drops. Thus, the pressure between the upper and lower parts inside the valve body of the container valve 42 is unbalanced, and the pressure of the lower part is greater than that of the upper part. The resulting pressure difference pushes the sealing structure and the rubber gasket open, realizing the conduction of the container valve. The fire detection tube 41 and the container valve 42 are components that those skilled in the art can obtain through commercial channels. The specific structures of the fire detection tube 41 and the container valve 42 are not elaborated herein. It can be understood that the fire detection tube 41 is flexible and is not affected by any position, and can extend into the interior of the energy storage unit 13.

[0138] Install the combined component of the above-mentioned fire detection tube 41 and container valve 42 on the thermal runaway management system of the present application. When thermal runaway does not occur (the ambient temperature of the energy storage unit 13 is less than the thermal runaway temperature of the energy storage unit 13), the pressure inside the container valve 42 is in a balanced state. The presence of the container valve 42 makes the sub-connection pipeline 33 in a non-conduction state, that is, the transmission component 3 is in a non-conduction state. At this time, the cooling medium cannot enter the interior of the energy storage unit 13, that is, thermal runaway management is not required in this state. Figure 11The dashed line shown indicates that the cooling medium may or may not enter the interior of the energy storage unit 13. When the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the fire detection tube 41 bursts, resulting in a sudden drop in the pressure inside the fire detection tube 41. The container valve 42 is activated, causing the sub-connection pipeline 33 to be in a conducting state, that is, the transmission assembly 3 is in a conducting state. The cooling medium is transported to the interior of the energy storage unit 13 through the transmission assembly 3, and the thermal runaway of the energy storage unit 13 is processed. In this embodiment, the fire detection tube 41 is used to detect the ambient temperature of the energy storage unit 13, and the container valve is used to control whether the transmission assembly 3 is conducting.

[0139] Optionally, when the storage device 2 adopts a combination of a liquid storage device 21 and a gas storage device 22, the presence of the gas storage device 22 can keep a certain pressure in the liquid storage device 21. When the liquid storage device 21 is connected to the transmission assembly 3, there will be a certain pressure difference in the area of the main pipeline 31 of the transmission assembly 3 close to the liquid storage device 21, causing the cooling medium in the liquid storage device 21 to enter the main pipeline 31. That is, when no thermal runaway occurs, the cooling medium is distributed inside the main pipeline 31, the main connection pipeline 32, and some of the sub-connection pipelines 33 of the transmission assembly 3. In this embodiment, since the cooling medium is distributed inside the transmission assembly 3 when no thermal runaway occurs, in this way, the distance and time for the cooling medium to be transported into the energy storage unit 13 can be shortened, and the transportation efficiency of the cooling medium can be greatly improved. When the energy storage unit 13 has a thermal runaway, the sub-connection pipeline 33 is made to be in a conducting state through the control assembly 4, and the cooling medium can come into contact with the energy storage unit 13 in time and undergo heat exchange, greatly improving the thermal runaway suppression efficiency. Optionally, the fire detection tube 41 can be arranged around the surfaces of all the battery cells 131a inside the energy storage unit 13, that is, the fire detection tube 41 can be used to detect the temperatures of all the battery cells 131a inside the energy storage unit 13, thereby improving the accuracy of judging whether the battery cells 131a have a thermal runaway.

[0140] Optionally, when the fire detection tube 41 and the container valve 42 are used as the control assembly 4, the control module 5 may not be provided, and the temperature detection and the transmission control of the cooling medium are realized only through the fire detection tube 41 and the container valve 42.

[0141] Optionally, the transmission flow rate of the cooling medium in the storage device 2 to the energy storage unit 13 can also be controlled through the control module 5. When the control module 5 is provided, a first regulating valve 6 can be provided on the transmission assembly 3, and the first regulating valve 6 can be installed on at least one of the main pipeline 31, the main connection pipeline 32, and the sub-connection pipeline 33. Figure 12 The schematic diagram of the thermal runaway treatment through a control assembly and a control module is shown. Please refer to Figure 12, the first regulating valve 6 is installed on the main pipeline 31, and the fire detection tube 41 and the first regulating valve 6 are respectively connected to the control module 5. When thermal runaway does not occur, the pressure in the container valve 42 is in a balanced state. The container valve 42 makes the sub-connection pipeline 33 in a non-conductive state, and the first regulating valve 6 is in a closed or open state. In this state, the cooling medium cannot enter the interior of the energy storage unit 13 through the transmission assembly 3. It can be understood that when the temperature of the energy storage unit 13 is lower than the thermal runaway temperature, the first regulating valve 6 can also be in an open state. At this time, the opening degree of the first regulating valve 6 should be controlled to be small to ensure that there is a certain amount of cooling medium in the transmission assembly 3. When the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the fire detection tube 41 bursts, and the container valve 42 is activated, making the sub-connection pipeline 33 in a conductive state. At the same time as the fire detection tube 41 bursts, the control module 5 monitors the bursting of the fire detection tube 41, and the control module 5 adjusts the opening degree of the first regulating valve 6 so that the cooling medium is delivered to the energy storage unit 13 at an appropriate flow rate to achieve the suppression of thermal runaway of the energy storage unit 13.

[0142] Optionally, when setting the control module 5 in the thermal runaway management system, a liquid delivery device 25 can also be provided on the main pipeline 31 to provide the power for the delivery of the cooling medium. When using the liquid delivery device 25, the liquid delivery device 25 is connected to the control module 5, and the opening and closing and the opening degree of the liquid delivery device 25 are controlled through the control module 5.

[0143] In some embodiments, the control assembly 4 includes a temperature sensing element. The temperature sensing element refers to a device sensitive to temperature. The temperature sensing element is arranged in the sub-connection pipeline 33 and is located inside the energy storage unit 13. Preferably, the temperature sensing element is arranged in the second pipeline 332. Further preferably, the temperature sensing element is arranged in the second sub-pipeline 3322 to realize the temperature detection inside the energy storage unit 13 and control the cooling medium to perform thermal runaway treatment on the inside of the energy storage unit 13.

[0144] In some embodiments, the temperature sensing element is a temperature sensing glass bulb 43. The temperature sensing glass bulb 43 is arranged in the second sub-pipeline 3322 to be close to the battery cell 131a to improve the accuracy of thermal runaway monitoring of the energy storage unit 13.

[0145] The temperature sensing glass bulb is a glass bulb internally storing a special expansion liquid sensitive to heat. The special expansion liquid is a high expansion rate liquid that boils at a low temperature. For example, esters, alcohols, and ethers can be selected. The material of the glass bulb can be, for example, high borosilicate glass, and the temperature sensing glass bulb bursts when it reaches a certain set temperature. As the temperature near the temperature sensing glass bulb rises, the special expansion liquid inside the glass bulb expands due to heat and the pressure increases. When the temperature of the special expansion liquid reaches the set temperature, the temperature sensing glass bulb bursts.

[0146] Optionally, the set temperature of the temperature-sensitive glass bulb 43 is the thermal runaway temperature of the battery cell 131a. Hereinafter, taking the temperature-sensitive element being disposed in the second sub-pipeline 3322 as an example for illustration.

[0147] Figure 13 A schematic diagram of a state of the temperature-sensitive glass bulb 43 is shown. Please refer to Figure 13 , when the temperature of the battery cell 131a is less than the thermal runaway temperature, the temperature-sensitive glass bulb 43 disposed in the second sub-pipeline 3322 closes the second sub-pipeline 3322, that is, the sub-connection pipeline 33 is in a non-conductive state, and the cooling medium cannot enter the interior of the energy storage unit 13 through the second sub-pipeline 3322. Figure 14 Another schematic diagram of a state of the temperature-sensitive glass bulb is shown. Please refer to Figure 14 , when the temperature of the battery cell 131a is greater than or equal to the thermal runaway temperature, the temperature-sensitive glass bulb 43 bursts, and the second sub-pipeline 3322 is in a communicating state, that is, the sub-connection pipeline 33 is in a conductive state, and the cooling medium can enter the interior of the energy storage unit 13 through the second sub-pipeline 3322, thereby realizing the heat exchange between the cooling medium and the energy storage unit 13. It can be understood that Figure 13 and Figure 14 the arrow directions shown in are the transmission directions of the cooling medium.

[0148] When using the temperature-sensitive glass bulb 43 as the temperature-sensitive element, the control module 5 may not be provided, and the temperature detection and the conveying control of the cooling medium are realized only through the temperature-sensitive glass bulb 43.

[0149] Optionally, the transmission flow rate of the cooling medium to the energy storage unit 13 can also be controlled by additionally providing the control module 5. When the control module 5 is provided, a first regulating valve 6 can be provided on the transmission assembly 3, and the first regulating valve 6 can be installed on at least one of the main pipeline 31, the connection pipeline 32, and the sub-connection pipeline 33. Figure 15 A schematic diagram of the cooperative action of the temperature-sensitive glass bulb and the control module is shown. Please refer to Figure 15 , the first regulating valve 6 is installed on the main pipeline 31, the control module 5 is respectively connected to the temperature-sensitive glass bulb 43 and the first regulating valve 6, and a sensor is provided in the control module 5 to detect the state of the temperature-sensitive glass bulb 43. The sensor can be, for example, an image sensor and an optical fiber sensor, etc. When thermal runaway does not occur, the presence of the temperature-sensitive glass bulb 43 makes the sub-connection pipeline 33 in a non-conductive state, and the first regulating valve 6 is in a closed or open state. When the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the temperature-sensitive glass bulb 43 bursts, making the sub-connection pipeline 33 in a conductive state. At the same time as the temperature-sensitive glass bulb 43 bursts, the control module 5 monitors that the temperature-sensitive glass bulb 43 bursts, and the control module 5 adjusts the opening degree of the first regulating valve 6 so that the cooling medium is conveyed into the energy storage unit 13 at an appropriate flow rate, realizing the suppression of thermal runaway of the energy storage unit 13.

[0150] In some other embodiments, the temperature sensing element may also be a shape memory alloy 44. The shape memory alloy 44 is a material composed of two or more metal elements that has a shape memory effect (SME) through thermoelastic and martensitic phase transformations and their inversions. It can deform under heat or external force and can return to its original shape under certain temperature conditions, and it can have a recovery function of millions of times.

[0151] Figure 16 A structural schematic diagram of a shape memory alloy is shown. Please refer to Figure 16 , the shape memory alloy 44 is set in the form of a valve-like shape, and the deformation temperature of the shape memory alloy is set as the thermal runaway temperature of the energy storage unit 13. Here, taking the shape memory alloy 44 set on the second sub-pipeline 3322 as an example for illustration.

[0152] When the temperature of any battery cell 131a in the energy storage unit 13 is lower than the thermal runaway temperature, the shape memory alloy 44 blocks the second sub-pipeline 332 so that the second sub-pipeline 3322 is in a non-conductive state. When the temperature of any battery cell 131a is greater than or equal to the thermal runaway temperature, the shape memory alloy 44 deforms and shrinks, making the second sub-pipeline 3322 in a conductive state. The cooling medium passes through the second sub-pipeline 3322 to contact the battery cells 131a inside the energy storage unit 13, thereby realizing the heat exchange between the cooling medium and the energy storage unit 13 and reducing the temperature of the energy storage unit 13. When the temperature of the energy storage unit 13 cools down again to be lower than the thermal runaway temperature, the shape memory alloy 44 returns to its initial shape, making the second sub-pipeline 3322 in a non-conductive state and blocking the heat exchange between the cooling medium and the energy storage unit 13. In this application, the shape memory alloy can achieve thousands or even tens of thousands of transitions between the conductive state and the non-conductive state of the second sub-pipeline 3322, without generating any consumables, which can save the use of the cooling medium and can also extend the service life of the thermal runaway management system.

[0153] Optionally, when using the shape memory alloy 44 as the control component 4, the control module 5 may not be set, and the temperature detection and the transmission control of the cooling medium are only realized through the shape memory alloy 44.

[0154] Optionally, the transmission flow rate of the cooling medium to the energy storage unit 13 can also be controlled by additionally setting the control module 5. When the control module 5 is set, a first regulating valve 6 can be set on the transmission component 3, and the first regulating valve 6 can be installed on at least one of the main pipeline 31, the connecting pipeline 32, and the sub-connecting pipeline 33. Figure 17 A structural schematic diagram of the synergistic action of the shape memory alloy and the control module is shown. Please refer to Figure 17, the first regulating valve 6 is installed on the first pipeline 331, and the control module 5 is respectively connected to the shape memory alloy 44 and the first regulating valve 6. By setting sensors in the control module 5 to detect the state of the shape memory alloy 44, the sensors can be, for example, image sensors and fiber optic sensors, etc. When thermal runaway does not occur, the presence of the shape memory alloy 44 makes the sub-connection pipeline 33 in a non-conductive state, and the first regulating valve 6 is in a closed or open state. When the ambient temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature of the energy storage unit 13, the shape memory alloy 44 deforms to make the sub-connection pipeline 33 in a conductive state. At the same time, the control module 5 monitors the change of the shape memory alloy 44, and the control module 5 adjusts the opening degree of the first regulating valve 6 so that the cooling medium is transported into the energy storage unit 13 at an appropriate flow rate to achieve the suppression of thermal runaway of the energy storage unit 13.

[0155] Optionally, the thermal runaway management system further includes a temperature sensing module 9. The temperature sensing module 9 can be used in combination with the control component 4 and the control module 5, or can be used alone in combination with the control module 5. Taking the case where the temperature sensing module 9 is used in combination with the control component 4 and the control module 5 as an example, Figure 18 shows a schematic diagram of the thermal runaway management system including the temperature sensing module. Please refer to Figure 18 , the temperature sensing module 9 is arranged inside the energy storage unit 13, and a first regulating valve 6 is also arranged on the transmission component 3. The temperature sensing module 45 and the first regulating valve 6 are both connected to the control module 5. The temperature sensing module 9 detects the temperature of the energy storage unit 13 and transmits the detected real-time temperature information to the control module 5. The control module 5 is used to monitor the state of the control component 4, and the control module 5 is also used to receive the temperature information transmitted by the temperature sensing module 9. When the temperature of the energy storage unit 13 is less than the thermal runaway temperature, the first regulating valve 6 is closed or open. In this state, the cooling medium cannot enter the interior of the energy storage unit 13 through the transmission component 3. When the temperature of the energy storage unit 13 is greater than or equal to the thermal runaway temperature, the control component 4 makes the sub-connection pipeline 33 in a conductive state. At the same time, the control component 4 changes, and at this time, the entire transmission component 3 is in a conductive state. The control module 5 adjusts the opening degree of the first regulating valve 6 according to the temperature information transmitted by the temperature sensing module 9 to achieve the flow regulation of the cooling medium in the transmission component 3.

[0156] Optionally, the temperature sensing module 9 can be, for example, a temperature sensor.

[0157] Optionally, a bypass valve 7 is also arranged on one side of the first regulating valve 6. The first regulating valve 6 and the bypass valve 7 are arranged on the same pipeline, that is, the first regulating valve 6 and the bypass valve 7 can be arranged on at least one of the main pipeline 31, the main connection pipeline 321, and the sub-connection pipeline 33. A bypass pipeline 8 is also arranged on the transmission component 3, and the bypass valve 7 is arranged on the bypass pipeline 8 to balance the pressure of the pipeline of the transmission component 3.

[0158] Please continue to refer to Figure 18 The control module 5 is used to control the opening and closing of the first regulating valve 6. The control module 5 can control the opening and closing of the first regulating valve 6 by controlling the change of the control component 4. The control component 4 can be at least one of a fire detection tube 41 and a container valve 42, a heat-sensitive glass bulb 43 and a shape memory alloy 44.

[0159] During the actual application process, the temperature sensing module 9 detects the ambient temperature inside the energy storage unit 13 in real time. Figure 19 shows a schematic structural diagram when the first regulating valve is in a non-operating state, as Figure 19 shown, the first regulating valve 6 and the bypass valve 7 are installed on the main pipeline 31. When the energy storage unit 13 does not undergo thermal runaway, the bypass valve 7 is in an open state all the time, and the first regulating valve 6 is in a closed state all the time. Figure 20 shows a schematic structural diagram when the first regulating valve is in an operating state, as Figure 20 shown, when the temperature inside the energy storage unit 13 rises and reaches the thermal runaway temperature, the control module 5 calculates the flow rate of the cooling medium required inside the energy storage unit 13 according to the temperature detected by the temperature sensing module 9. The control module 5 controls the bypass valve 7 to close and the first regulating valve 6 to open, and the control module 5 adjusts the opening degree of the first regulating valve 6 according to the flow rate of the cooling medium required by the energy storage unit 13. If the first regulating valve 6 fails or the signal transmitted by the temperature sensing module 9 to the control module 5 is blocked, the cooling medium can be transmitted to the inside of the energy storage unit 13 through the normally open bypass pipeline 8. At this time, the flow rate of the cooling medium transmitted to the energy storage unit 13 cannot be quantitatively adjusted according to the actual situation, and the transmission component 3 will supply according to the maximum demand flow rate.

[0160] In summary, the present application can realize the detection of the temperature of the energy storage unit 13 and the delivery of the cooling medium to the inside of the energy storage unit 13 (passive trigger) by only setting the control component 4, and can also realize the detection of the temperature of the energy storage unit 13 and the delivery of the cooling medium to the inside of the energy storage unit 13 (a combination of active trigger and passive trigger) by setting the control component 4 and the control module 5. Moreover, the present application uses the storage device 2 to centrally store the cooling medium and distributes the cooling medium to the energy storage unit 13 through the transmission component 3, which can minimize the storage demand of the cooling medium. The storage capacity of the cooling medium in the storage device 2 of the present application can correspond to the amount required for 1 to 2 energy storage devices 12 to undergo thermal runaway. At the same time, the transmission component 3 is arranged in a distributed manner, so that the cooling medium can be accurately delivered to the abnormal module position of the energy storage unit 3, and the problem of preventing and dealing with thermal runaway of the computing device cluster 1 can be solved point by point.

[0161] An embodiment of the present application further provides a computing device cluster, and the computing device includes the aforementioned thermal runaway management system. The device chassis includes: a bus, a processor, a memory, and a communication interface. The processor, the memory, and the communication interface communicate with each other through the bus. The computing device can be a server or a terminal device. It should be understood that the present application does not limit the number of processors and memories in the computing device.

[0162] The bus can be a peripheral component interconnect (PCI) bus, an extended industry standard architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, etc. The bus can include a path for transmitting information between various components of the computing device (for example, the memory, the processor, the communication interface).

[0163] The processor can include any one or more of processors such as a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP).

[0164] The memory can include a volatile memory, such as a random access memory (RAM). The memory can also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid state drive (SSD).

[0165] The communication interface uses a transceiver module such as, but not limited to, a network interface card or a transceiver to implement communication between the computing device and other devices or a communication network.

[0166] The computing device can be a product type such as a computer or a server, and is particularly suitable for data center servers with high power, high integration, and ultra-large scale. Based on the operating mechanism of the phase change immersion liquid cooling system, it can meet the internal space expansion ability under the corresponding refrigeration cycle, and at the same time provide the working medium circulation condensation function and the refrigeration working medium supply function, providing technical guarantee for the reliable application of the phase change immersion liquid cooling in the heat dissipation treatment of corresponding devices.

[0167] The embodiment of the present application further provides a data center, in which the foregoing computing device cluster is arranged, and the computing device includes the foregoing thermal runaway management system. The data center further includes a building for accommodating the computing device cluster, and a power supply and distribution system, a refrigeration system, a security system, a management system, and network devices arranged inside the building. Data is transmitted between the above systems and devices through the network devices.

[0168] The building can be facilities such as a computer room, a container, a commercial building, and an underground space, etc., to ensure the efficient and stable operation of the data center.

[0169] The power supply and distribution system includes devices such as an Uninterruptible Power Supply (UPS), a generator set, and a power distribution cabinet, etc., for ensuring the stable power supply of the data center.

[0170] The refrigeration system can include an air-cooled air-conditioning system. The air-cooled air-conditioning system realizes the overall refrigeration in the data center through the interconnection of an air-cooled unit, indoor terminal equipment (fan coil units), an expansion tank, a refrigeration pipeline, a chilled water pump, a gate valve assembly, and a pressure gauge. The refrigeration system also includes a liquid-cooled system. The liquid-cooled system can use liquid as a cooling medium, which can refer to the internal setting in the internal systems, servers, etc. of the data center to achieve precise refrigeration.

[0171] The security system includes but is not limited to a fire protection system, a monitoring system, an access control system, etc., to ensure the physical security and data security of the data center.

[0172] The management system can be a Data Center Infrastructure Management (DCIM) system, including monitoring, managing, and optimizing the physical facilities, network, storage, servers, power, and cooling systems, etc. of the data center. The data center infrastructure management system can help data center administrators better understand the performance and status of the data center, thereby improving the reliability and efficiency of the data center. The network devices can be switches, routers, optical fibers, etc., mainly used for data transmission between servers inside the data center and data transmission between servers and other external devices (such as clients).

[0173] The data center can centrally store, manage, process, and distribute data, and is particularly suitable for large-scale and function-integrated data centralized management. By setting a thermal runaway management system inside the data center in this application, the thermal runaway risk of the data center can be effectively managed, ensuring the security and reliability of the data center, while improving energy efficiency and reducing operating costs.

[0174] For the same or similar parts among the various embodiments in this specification, reference can be made to each other. In particular, for the apparatus embodiments and terminal embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and reference can be made to the descriptions in the method embodiments for the relevant parts.

Claims

1. A thermal runaway management system, the thermal runaway management system being arranged in a computing device cluster (1), the computing device cluster (1) comprising at least one cabinet (11), each of the cabinets (11) being provided with at least one energy storage device (12), each of the energy storage devices (12) comprising at least one energy storage unit (13), characterized in that: The thermal runaway management system comprises: A storage device (2), wherein a cooling medium is stored in the storage device (2); A transmission component (3), the transmission component (3) comprising a main pipeline (31), the main pipeline (31) being connected to the storage device (2), the main pipeline (31) being connected to at least one main connecting pipeline (32), the main connecting pipelines (32) corresponding one-to-one with the energy storage device (12), each main connecting pipeline (32) being connected to at least one sub-connecting pipeline (33), the sub-connecting pipelines (33) corresponding one-to-one with the energy storage unit (13), and the sub-connecting pipelines (33) being connected to the energy storage unit (13); A control component (4), wherein the control component (4) is arranged on the transmission component (3), and the control component (4) is at least partially arranged inside the energy storage unit (13), so that when the ambient temperature of the energy storage unit (13) is greater than or equal to the thermal runaway temperature of the energy storage unit (13), the cooling medium enters the energy storage unit (13) through the transmission component (3).

2. The thermal runaway management system according to claim 1, characterized in that: When the ambient temperature of the energy storage unit (13) is lower than the thermal runaway temperature of the energy storage unit (13), the control component (4) causes the transmission component (3) to be in a non-conducting state; When the ambient temperature of the energy storage unit (13) is greater than or equal to the thermal runaway temperature of the energy storage unit (13), the control component (4) causes the transmission component (3) to be in a conducting state.

3. The thermal runaway management system according to claim 1, characterized in that: The control component (4) comprises a fire detection tube (41) and a container valve (42), wherein the container valve (42) is arranged on the sub-connecting pipeline (33), one end of the fire detection tube (41) is connected to the container valve (42), and the other end of the fire detection tube (41) is arranged inside the energy storage unit (13).

4. The thermal runaway management system according to claim 3, characterized in that: The energy storage unit (13) comprises at least one battery cell group (131), the battery cell group (131) comprises at least one battery cell (131a), and the fire detection tube (41) is arranged on the surface of at least one battery cell (131a).

5. The thermal runaway management system according to any one of claims 1 to 4, characterized in that: The sub-connecting pipeline (33) comprises a first pipeline (331) and a second pipeline (332) which are connected to each other; the first pipeline (331) is arranged outside the energy storage unit (13), and the second pipeline (332) is arranged inside the energy storage unit (13).

6. The thermal runaway management system according to claim 5, characterized in that: The control component (4) comprises a temperature sensing element, and the temperature sensing element is arranged inside the second pipeline (332); When the ambient temperature of the energy storage unit (13) is lower than the thermal runaway temperature of the energy storage unit (13), the temperature sensing element is sealed inside the second pipeline (332) so that the second pipeline (332) is in a non-conducting state; When the ambient temperature of the energy storage unit (13) is greater than or equal to the thermal runaway temperature of the energy storage unit (13), the temperature sensing element changes so that the second pipeline (332) is in a conducting state.

7. The thermal runaway management system according to claim 6, characterized in that: The temperature sensing element comprises a temperature sensing glass ball (43) and / or a shape memory alloy (44).

8. The thermal runaway management system according to any one of claims 1 to 7, characterized in that: The thermal runaway management system further comprises a joint (34), wherein the joint (34) is arranged on the energy storage unit (13), and the sub-connecting pipeline (33) and the energy storage unit (13) are detachably connected via the joint (34).

9. The thermal runaway management system according to any one of claims 1 to 8, characterized in that: The thermal runaway management system further comprises a control module (5) and a first regulating valve (6), wherein the control module (5) is connected to the control component (4) and the first regulating valve (6) respectively, and the first regulating valve (6) is arranged on at least one of the main pipeline (31), the main connecting pipeline (32) and the sub-connecting pipeline (33).

10. The thermal runaway management system according to claim 9, characterized in that: The thermal runaway management system further comprises a temperature sensing module (9), wherein the temperature sensing module (9) is arranged inside any one of the energy storage units (13), and the temperature sensing module (9) is connected to the control module (5).

11. The thermal runaway management system according to any one of claims 1 to 10, characterized in that: The storage device (2) comprises a liquid storage device (21), the cooling medium is arranged in the liquid storage device (21), and the liquid storage device (21) is connected to the main pipeline (31).

12. The thermal runaway management system according to claim 11, characterized in that: The storage device (2) further comprises an air storage device (22), wherein the air storage device (22) and the liquid storage device (21) are connected via a pipeline (23), wherein a second regulating valve (24) is provided on the pipeline (23), wherein a first pressure is present in the air storage device (22), and a second pressure is present in the liquid storage device (21), wherein the first pressure is greater than the second pressure.

13. The thermal runaway management system according to claim 11, characterized in that: The main pipe (31) is provided with a liquid delivery device (25), and the liquid delivery device (25) is used to extract the cooling medium in the storage device (2).

14. A computing device cluster, characterized in that: The computing device cluster includes at least one cabinet (11), each of the cabinets (11) is provided with at least one energy storage device (12), each of the energy storage devices (12) includes at least one energy storage unit (13), and the computing device cluster is provided with a thermal runaway management system according to any one of claims 1 to 13.

15. A data center, characterized in that: The data center comprises at least one computing device cluster (1), the computing device cluster (1) comprises at least one cabinet (11), each of the cabinets (11) is provided with at least one energy storage device (12), each of the energy storage devices (12) comprises at least one energy storage unit (13), and the computing device cluster (1) is provided with a thermal runaway management system according to any one of claims 1 to 13.

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