Fire-fighting processing method, electronic device, storage medium and program product

Abstract

The invention discloses a fire-fighting processing method, an electronic device, a storage medium and a program product. The method is applied to the energy storage device, the energy storage device comprises a battery pack, and the method comprises the steps that first state information and second state information are acquired, the first state information is used for representing the thermal runaway degree of the energy storage device, and the second state information is used for representing the thermal runaway degree of the battery pack; and generating a fire-fighting strategy according to the first state information and the second state information, wherein the fire-fighting strategy is used for indicating the energy storage device to carry out fire fighting on the interior of the energy storage device and the interior of the battery pack.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and more specifically, to a fire protection method, an electronic device, a storage medium and a program product. Background Art

[0002] With the adjustment of the global energy structure and the emergence of new energy sources, electrochemical energy storage systems are widely used in the power grid generation, transmission and user sides for peak shaving, peak and frequency regulation, voltage support and line congestion relief. The energy storage system is composed of multiple battery cells connected in series and parallel. The system has large capacity and high energy. Once a failure occurs, it may cause an uncontrollable fire accident. Usually, a detection sensor is set in the energy storage system to judge whether the energy storage system has thermal runaway based on the detected parameters, but the accuracy is low. Summary of the invention

[0003] An object of the present invention is to provide a new technical solution for dealing with thermal runaway of an energy storage device.

[0004] According to a first aspect of the present invention, a fire fighting method is provided.

[0005] The method is applied to an energy storage device, the energy storage device comprising a cabinet and at least one battery pack arranged in the cabinet, and the method comprises:

[0006] Acquire first state information and second state information, wherein the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack;

[0007] A fire fighting strategy is generated according to the first status information and the second status information, wherein the fire fighting strategy is used to instruct the energy storage device to carry out fire fighting inside the energy storage device and inside the battery pack.

[0008] Optionally, the first state information includes smoke concentration information of the energy storage device and volatile organic compound (VOC) concentration information of the energy storage device;

[0009] The generating a fire fighting strategy according to the first state information and the second state information comprises:

[0010] When it is determined that a first preset condition is met according to the smoke concentration information of the energy storage device and the VOC concentration information of the energy storage device, a first fire fighting strategy is executed.

[0011] Optionally, the first preset condition includes:

[0012] The smoke concentration of the energy storage device is greater than a first concentration value, and the VOC concentration of the energy storage device is greater than the second concentration value.

[0013] Optionally, the first preset condition further includes at least one of the following:

[0014] The change rate of the smoke concentration of the energy storage device is greater than the first change rate, and the change rate of the VOC concentration of the energy storage device is greater than the second change rate.

[0015] The present invention can detect thermal runaway in the early stage by comprehensively considering the smoke concentration and VOC concentration of the energy storage device, thereby realizing early warning of thermal runaway. Furthermore, by adding the judgment condition of the rate of change of the smoke concentration of the energy storage device and the judgment condition of the rate of change of the VOC concentration of the energy storage device to the first preset condition, the degree of thermal runaway of the energy storage device can be judged more accurately.

[0016] Optionally, the first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and carbon monoxide CO concentration information of the energy storage device;

[0017] The generating a fire fighting strategy according to the first state information and the second state information comprises:

[0018] When it is determined that the second preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device, a second fire fighting strategy is executed.

[0019] Optionally, the second preset condition includes:

[0020] The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than a second concentration value, and the CO concentration of the energy storage device is greater than a third concentration value.

[0021] Optionally, the second preset condition further includes at least one of the following:

[0022] The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0023] Optionally, the second preset condition also includes at least one of the following: the rate of change of the smoke concentration of the energy storage device is greater than the first rate of change, the rate of change of the VOC concentration of the energy storage device is greater than the second rate of change, the rate of change of the CO concentration of the energy storage device is greater than the third rate of change, the temperature of the energy storage device is greater than the first temperature value, the temperature of the battery pack is greater than the second temperature value, and the voltage of the battery pack is less than the first voltage value.

[0024] The present invention can timely judge whether the thermal runaway situation has become worse by integrating the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device, so as to deal with the thermal runaway as soon as possible and reduce losses. Furthermore, the change rate of the smoke concentration of the energy storage device, the change rate of the VOC concentration of the energy storage device, and the change rate of the CO concentration of the energy storage device can be superimposed for judgment to improve the accuracy of the judgment result.

[0025] Optionally, the first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, CO concentration information of the energy storage device, and temperature information of the energy storage device;

[0026] The generating a fire fighting strategy according to the first state information and the second state information comprises:

[0027] When it is determined that a third preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, and the temperature information of the energy storage device, a third fire fighting strategy is executed.

[0028] Optionally, the third preset condition includes:

[0029] The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, and the temperature of the energy storage device is greater than a first temperature value.

[0030] Optionally, the third preset condition further includes at least one of the following:

[0031] The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0032] The present invention can timely judge whether the thermal runaway situation has become worse by integrating the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the temperature information of the energy storage device, so as to deal with the thermal runaway as soon as possible and reduce losses. Furthermore, the change rate of the smoke concentration of the energy storage device, the change rate of the VOC concentration of the energy storage device, and the change rate of the CO concentration of the energy storage device can be superimposed for judgment to improve the accuracy of the judgment result.

[0033] Optionally, the first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and CO concentration information of the energy storage device, and the second state information includes voltage information of the battery pack;

[0034] The generating a fire fighting strategy according to the first state information and the second state information comprises:

[0035] When it is determined that the fourth preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the voltage information of the battery pack, a third fire fighting strategy is executed.

[0036] Optionally, the fourth preset condition includes:

[0037] The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, and the voltage of the battery pack is less than a first voltage value.

[0038] Optionally, the fourth preset condition further includes at least one of the following:

[0039] The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0040] The present invention improves the accuracy of the thermal runaway degree judgment result by comprehensively considering the state information of the energy storage device and the voltage information of the battery pack. Furthermore, the change rate of the smoke concentration of the energy storage device, the change rate of the VOC concentration of the energy storage device, and the change rate of the CO concentration of the energy storage device can be superimposed for judgment to improve the accuracy of the judgment result.

[0041] Optionally, the first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and CO concentration information of the energy storage device, and the second state information includes temperature information of the battery pack;

[0042] The generating a fire fighting strategy according to the first state information and the second state information comprises:

[0043] When it is determined that the fifth preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the temperature information of the battery pack, a third fire fighting strategy is executed.

[0044] Optionally, the fifth preset condition includes:

[0045] The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, and the temperature of the battery pack is greater than a second temperature value.

[0046] Optionally, the fifth preset condition further includes at least one of the following:

[0047] The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0048] The present invention improves the accuracy of the thermal runaway degree judgment result by comprehensively considering the state information of the energy storage device and the temperature information of the battery pack. Furthermore, the change rate of the smoke concentration of the energy storage device, the change rate of the VOC concentration of the energy storage device, and the change rate of the CO concentration of the energy storage device can be superimposed for judgment to improve the accuracy of the judgment result.

[0049] Optionally, the first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and CO concentration information of the energy storage device, and the second state information includes temperature information of the battery pack, voltage information of the battery pack, and temperature information of the energy storage compartment;

[0050] The generating a fire fighting strategy according to the first state information and the second state information comprises:

[0051] When it is determined that the sixth preset condition is met based on the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, the temperature information of the battery pack, the voltage information of the battery pack, and the temperature information of the energy storage compartment, the third fire fighting strategy is executed.

[0052] Optionally, the sixth preset condition includes:

[0053] The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, the temperature of the energy storage device is greater than a first temperature value, the temperature of the battery pack is greater than a second temperature value, and the voltage of the battery pack is less than a first voltage value.

[0054] Optionally, the sixth preset condition also includes:

[0055] The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0056] Optionally, executing the first firefighting strategy includes:

[0057] Instruct the energy storage device to shut down, and / or instruct an alarm of the energy storage device to sound an alarm.

[0058] The present invention prevents the energy storage device from running in a thermal runaway environment by shutting down the energy storage device, thereby reducing the damage caused by thermal runaway to the energy storage device. In addition, the alarm of the energy storage device can be used to promptly notify the staff to take corresponding measures, thereby reducing losses.

[0059] Optionally, executing the second fire fighting strategy includes:

[0060] Instruct the energy storage device to power off, instruct the alarm of the energy storage device to sound an alarm, and / or instruct the fire-fighting device of the energy storage device to perform fire extinguishing.

[0061] The present invention prevents the energy storage device from operating in a thermal runaway environment by cutting off the power supply of the energy storage device, thereby reducing the damage of thermal runaway to the energy storage device. In addition, the fire extinguishing device is used to extinguish the fire, thereby eliminating the thermal runaway in time and reducing the loss.

[0062] Optionally, executing the third firefighting strategy includes:

[0063] Instruct other energy storage devices near the energy storage device to shut down, instruct the alarm of the energy storage device to sound an alarm, and instruct the external fire-fighting device of the energy storage device to perform fire-fighting actions.

[0064] The present invention reduces the impact of thermal runaway on other energy storage devices by shutting down other energy storage devices near the energy storage device that has thermal runaway. The alarm of the energy storage device is also set to sound an alarm to notify the staff to evacuate as soon as possible to ensure personal safety. The external fire-fighting device is instructed to perform fire-fighting actions to quickly eliminate thermal runaway.

[0065] According to a second aspect of the present invention, there is provided a fire fighting device, comprising:

[0066] a receiving unit, configured to obtain first state information and second state information, wherein the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack;

[0067] A processing unit is used to generate a fire fighting strategy according to the first state information and the second state information, wherein the fire fighting strategy is used to instruct the energy storage device to perform fire fighting inside the energy storage device and inside the battery pack.

[0068] According to a third aspect of the present invention, there is provided an electronic device comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the fire treatment method as described in the first aspect of the present invention are implemented.

[0069] Optionally, the electronic device is a fire controller arranged in the energy storage device.

[0070] According to a fourth aspect of the present invention, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the fire treatment method as described in the first aspect of the present invention are implemented.

[0071] According to a fifth aspect of the present invention, there is provided a computer program product, comprising a computer program / instruction, which, when executed by a processor, implements the fire fighting method as described in the first aspect of the present invention.

[0072] According to a sixth aspect of the present invention, there is provided an energy storage device, comprising a sensor, a controller and a battery pack;

[0073] The sensor is used to detect first state information and second state information, the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack;

[0074] The controller is used to generate a fire fighting strategy according to the first status information and the second status information, and the fire fighting strategy is used to instruct the energy storage device to carry out fire fighting on the energy storage device and the battery pack.

[0075] According to one embodiment of the present invention, the present invention obtains status information of an energy storage device and status information of a battery pack, and generates a fire strategy based on the status information of the energy storage device and the status information of the battery pack to improve the accuracy of the alarm and avoid false alarms.

[0076] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0078] Figure 1 It is a flow chart of the fire fighting method in the embodiment of the present application.

[0079] Figure 2 It is a schematic diagram of the first preset condition in the embodiment of the present application.

[0080] Figure 3 It is a schematic diagram of the second preset condition in the embodiment of the present application.

[0081] Figure 4 It is another schematic diagram of the second preset condition in the embodiment of the present application.

[0082] Figure 5 It is a schematic diagram of the third preset condition in the embodiment of the present application.

[0083] Figure 6 It is another schematic diagram of the third preset condition in the embodiment of the present application.

[0084] Figure 7 It is a schematic diagram of the fourth preset condition in the embodiment of the present application.

[0085] Figure 8 It is another schematic diagram of the fourth preset condition in the embodiment of the present application.

[0086] Fig. 9 It is a schematic diagram of the fifth preset condition in the embodiment of the present application.

[0087] Fig.10 It is another schematic diagram of the fifth preset condition in the embodiment of the present application.

[0088] Fig.11 It is a schematic diagram of the sixth preset condition in the embodiment of the present application.

[0089] Fig.12 It is another schematic diagram of the sixth preset condition in the embodiment of the present application.

[0090] Fig.13 It is a schematic diagram of a fire treatment device in an embodiment of the present application.

[0091] Fig.14 is a schematic diagram of an electronic device in an embodiment of the present application. DETAILED DESCRIPTION

[0092] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0093] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0094] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0095] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0096] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0097] like Figure 1 As shown, this embodiment introduces a fire treatment method, which is applied to an energy storage device, wherein the energy storage device includes a cabinet and at least one battery pack arranged in the cabinet. An energy storage device is a device for storing electrical energy or other energy sources. The energy storage device may be an energy storage cabin, an energy storage cabinet, an energy storage container and other equipment. The energy storage device may be a container-type energy storage product, an industrial and commercial energy storage product, or a home storage product. No specific limitation is made here. At least one battery pack is arranged in the cabinet of the energy storage device, and the battery pack serves as a power storage unit of the energy storage device. Only one battery pack or multiple battery packs may be arranged in the cabinet of the energy storage device. The number of battery packs in the cabinet of the energy storage device may be determined according to the function of the energy storage device. For example, the energy storage device is used as a backup power source for some industrial equipment and requires a larger capacity. In this case, multiple battery packs may be arranged in the cabinet of the energy storage device. For another example, the energy storage device is used for personal home use and does not require a larger capacity, so only one battery pack may be arranged.

[0098] First, specific scenarios in which the energy storage device provided in this application may be deployed are introduced.

[0099] In the embodiments of the present application, the energy storage device can be applied to the user side. For example, by installing an energy storage device in a hospital, using photovoltaic and energy storage devices, 100% clean energy can be used in the hospital area, thereby improving the image of the hospital. For another example, a large electricity user can save electricity bills by installing an energy storage device at home.

[0100] It can also be applied to the power generation side. For example, when large-scale new energy is connected to the grid, the use of electrochemical energy storage devices can support the stable operation of the power grid.

[0101] It can also be applied to the power grid side. For example, when a power outage occurs in the power grid, the energy storage device provides emergency power to users, avoiding power outages during fault repair and ensuring power supply reliability.

[0102] In the embodiments of the present application, the energy storage device can be applied to the scenarios mentioned in the above embodiments, and can also be applied to other scenarios. The embodiments of the present application do not specifically limit the specific application scenarios.

[0103] The fire protection method provided by the present application is introduced below in conjunction with the accompanying drawings.

[0104] like Figure 1 The fire protection method provided in this application includes steps 1100-1200.

[0105] Step 1100: Obtain first state information and second state information.

[0106] In an embodiment of the present application, the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack. In the energy storage system, the degree of thermal runaway can be divided into situations such as not out of control but about to be out of control, already out of control, etc. according to the severity. For example, the current of the battery suddenly begins to increase rapidly, indicating that the battery currently has a high risk of thermal runaway but has not yet lost control. For example, a short circuit failure occurs in the battery, indicating that the battery has lost control at this time. For example, the battery pack swells, indicating that the battery currently has a risk of thermal runaway. For example, the total battery capacity of the energy storage device suddenly begins to decrease, indicating that the energy storage device has a risk of thermal runaway but has not yet lost control. For example, a large amount of flammable gas emerges from the energy storage device, indicating that the energy storage device has lost control. As the degree of thermal runaway continues to develop, the large amount of heat generated inside the battery will intensify the reaction process, thereby causing system failure in the field of energy storage technology, and even causing serious consequences such as explosions and fires. In the embodiments of the present disclosure, when the degree of thermal runaway of the energy storage device or battery pack is not out of control but is about to be out of control, or has already been out of control, a fire protection strategy is provided to reduce the risk of thermal runaway of the energy storage device or battery pack and improve the safety of the energy storage device or battery pack.

[0107] Optionally, thermal runaway of a battery pack may be caused by a battery pack failure, such as a rupture of the diaphragm between the battery anode and the electrolyte. This will cause the battery temperature to rise, resulting in a chain reaction, releasing more energy, and causing the electrolyte in the battery to decompose into flammable gases. Thermal runaway of a battery pack may also be caused by other reasons, such as an internal short circuit in the battery pack, which may also cause thermal runaway of the battery pack. In addition, thermal runaway of a battery pack may also be caused by other reasons, which are not specifically limited here.

[0108] In the embodiments of the present application, the thermal runaway of the energy storage cabin may be caused by the thermal runaway of the battery pack. If the battery pack is in thermal runaway, phenomena such as temperature rise, fire, and smoke generation may occur, causing the temperature of the energy storage cabin to rise, and then causing thermal runaway of the energy storage cabin. The thermal runaway of the energy storage cabin may also be caused by other electrical equipment in the energy storage cabin, such as a short circuit in the power supply system of the energy storage cabin, causing the power supply system to catch fire, and then causing thermal runaway of the energy storage cabin. In addition, the thermal runaway of the energy storage device may also be due to other reasons, which are not specifically limited here.

[0109] When the battery pack experiences thermal runaway, smoke will be generated inside the battery pack. The smoke contains flammable gases, such as volatile organic compounds (VOC), hydrogen H2, carbon monoxide CO, etc. The temperature of the battery pack and the energy storage device will also rise. At the same time, the air pressure inside the battery pack increases, which impacts the pressure relief valve of the battery pack, causing the pressure relief valve to loosen or even be completely opened, and the smoke is discharged from the battery pack into the energy storage device cabinet.

[0110] A sensor is provided in the energy storage device, which can be used to detect the first state information. The sensor is arranged outside the battery pack in the cabinet. For example, a combustible gas sensor, a smoke sensor, a temperature sensor, etc. The combustible gas sensor can detect the concentration of combustible gas in the energy storage device, the smoke sensor can detect the concentration of smoke in the energy storage device, and the temperature sensor can detect the temperature in the energy storage device. For example, the sensor for detecting the first state information can be arranged on the top of the energy storage device. In the event of thermal runaway, the smoke and combustible gas in the energy storage device will spread upward. Setting the sensor on the top of the energy storage device can detect the smoke and combustible gas in the energy storage device in time.

[0111] The battery pack is also equipped with sensors that can be used to detect the concentration of combustible gas in the battery pack, the gas pressure of the battery pack, and the temperature of the battery pack. When the battery pack experiences thermal runaway, a large amount of combustible gas and smoke will first be generated inside the battery pack, and the combustible gas and smoke will open the pressure relief valve. The sensor for the second state information is set inside the battery pack. There are battery cells in the battery pack, and the second state information can be the temperature information of the battery cells. The sensor for detecting the temperature information of the battery cells can be set on the surface of the battery cells.

[0112] The first state information or the second state information may be a specific value or a flag. For example, the first state information may be the concentration value of the combustible gas in the energy storage device, or the concentration of the smoke, or the temperature value, etc. The first state information may also be a flag generated when the concentration of the combustible gas in the energy storage device exceeds a preset concentration value, or a flag generated when the concentration of the smoke exceeds a preset concentration value, etc.

[0113] For another example, the second state information of the battery pack may be the concentration value of the combustible gas in the battery pack, such as 300ppm, or the air pressure value of the battery pack, such as 100kPa, or the temperature value of the battery pack, such as 50°C. The second state information of the battery pack may also be a flag indicating when the concentration of the combustible gas in the battery pack exceeds a preset concentration, or a flag indicating when the air pressure of the battery pack exceeds a preset air pressure, or a flag indicating when the temperature of the battery pack exceeds a preset temperature. For example, when the second state information is 001, it indicates that the concentration of the combustible gas in the battery pack exceeds the preset concentration. For another example, when the second state information is 010, it indicates that the air pressure of the battery pack exceeds the preset air pressure. For another example, when the second state information is 100, it indicates that the temperature of the battery pack exceeds the preset temperature.

[0114] In the embodiment of the present application, the second status information of each battery pack may be obtained, or the second status information of some battery packs may be obtained.

[0115] Step 1200: Generate a firefighting strategy according to the first status information and the second status information, wherein the firefighting strategy is used to instruct the energy storage device to perform firefighting inside the energy storage device and inside the battery pack.

[0116] The fire fighting strategy is generated by integrating the state information of the energy storage device and the state information of the battery pack. A plurality of fire fighting strategies and the judgment conditions corresponding to each fire fighting strategy can be preset, and the fire fighting strategy is determined according to whether the first state information and the second state information meet the judgment conditions.

[0117] Firefighting strategies can include various measures such as alarm, exhaust ventilation, and fire extinguishing. For example, alarm bells and sound and light alarms can be set in the energy storage device, and alarms can be sent out through alarm bells or sound and light alarms to remind staff to handle the situation in a timely manner. Alarm bells and sound and light alarms can also be set outside the energy storage device to alert people outside the energy storage device. In addition, firefighting strategies can also be other measures, which are not limited here.

[0118] An exhaust ventilation device may also be installed in the energy storage device, and the energy storage device may be vented by opening the exhaust ventilation device. The smoke and combustible gas in the energy storage device may be discharged by exhaust, and the temperature of the energy storage device and the battery pack may also be reduced. The fire may also be extinguished by spraying a fire extinguishing agent, such as by setting up multiple nozzles in the energy storage device and spraying the fire extinguishing agent through the nozzles.

[0119] This embodiment obtains various status information of the energy storage device and various status information of the battery pack, and determines the alarm level according to the various status information of the energy storage device and various status information of the battery pack, thereby improving the accuracy of the alarm and avoiding false alarms.

[0120] In this embodiment, Figure 2As shown, the first state information includes the smoke concentration information of the energy storage device and the VOC concentration information of the energy storage device, and step 1200 includes: executing a first fire fighting strategy when it is determined that a first preset condition is met based on the smoke concentration information of the energy storage device and the VOC concentration information of the energy storage device.

[0121] In the early stage of thermal runaway, the temperature of the battery pack increases and the voltage of the battery pack decreases, which will first generate VOC gas and smoke. After thermal runaway occurs, the gas in the battery cell will open the pressure relief valve, causing the pressure relief valve to loosen. The VOC gas and smoke in the battery pack will rush out of the battery pack, causing the smoke concentration and VOC concentration of the energy storage device to increase.

[0122] The concentration information in this embodiment can be a specific concentration value, or a flag indicating that the concentration value exceeds a preset value. For example, the smoke concentration information can be 100ppm, or a percentage value can be used to represent the concentration, such as 10%. For another example, the smoke concentration information can also be a binary number 0001, which means that the smoke concentration exceeds 100ppm.

[0123] The concentration information may also be a concentration change rate. The concentration information may also be a flag indicating that the concentration change rate exceeds a certain preset change rate.

[0124] In this application, multiple alarm levels are preset. For example, the alarm levels include level 1, level 2, and level 3. The higher the alarm level, the more serious the thermal runaway of the energy storage device. When the first preset condition is met, the alarm level is determined to be level 1.

[0125] like Figure 2 As shown, the conditions in the solid-line box in the figure are mandatory conditions, and the conditions in the dotted-line box in the figure are optional conditions. In one embodiment, the first preset condition includes that the smoke concentration of the energy storage device is greater than the first concentration value, and the VOC concentration of the energy storage device is greater than the second concentration value.

[0126] The degree of thermal runaway of the energy storage device can be reflected by the smoke concentration and VOC concentration of the energy storage device. The more severe the thermal runaway, the higher the smoke concentration and VOC concentration. When the smoke concentration of the energy storage device is large and the VOC concentration of the energy storage device is large, the thermal runaway of the energy storage device needs to be processed. For example, the first concentration value can be 25%, and the second concentration value can also be 25%. In this case, the first firefighting strategy is executed to prevent the degree of thermal runaway of the energy storage device from further deteriorating by generating the first firefighting strategy. In addition, the first concentration value and the second concentration value can also be set to other values, which are not limited here.

[0127] like Figure 2As shown, in another embodiment, the first preset condition also includes at least one of the following: the change rate of the smoke concentration of the energy storage device is greater than the first change rate, and the change rate of the VOC concentration of the energy storage device is greater than the second change rate.

[0128] In this embodiment, the smoke concentration information of the energy storage device includes the smoke concentration and the rate of change of the smoke concentration, and the VOC concentration information of the energy storage device includes the VOC concentration and the rate of change of the VOC concentration. The rate of change of the smoke concentration and the rate of change of the VOC concentration can reflect the changing trend of the thermal runaway, and the rate of change indicates the rate of change. If the thermal runaway is weakening, the smoke and combustible gas generated per unit time will decrease, that is, the rate of change of the smoke concentration and the rate of change of the combustible gas concentration will decrease. If the thermal runaway is becoming more serious, the smoke and combustible gas generated per unit time will increase, that is, the rate of change of the smoke concentration and the rate of change of the combustible gas concentration will increase. Figure 2 As shown, when determining whether the first preset condition is met based on the smoke concentration information and the VOC concentration information of the energy storage device, the change rate of the smoke concentration and the change rate of the VOC concentration are used, which can more accurately judge the degree of thermal runaway of the energy storage device.

[0129] The first fire fighting strategy may include: instructing the energy storage device to shut down, and / or instructing an alarm of the energy storage device to sound an alarm.

[0130] Shutting down the energy storage device can reduce the impact of thermal runaway on the energy storage device and reduce property losses. By sending an alarm through an alarm, the staff can be notified to evacuate in time to ensure personal safety. For example, the alarm is an alarm light. When the alarm level is level one, the alarm light flashes to warn. In addition, the alarm can also be other devices, which are not limited here.

[0131] When the first fire fighting strategy is generated, the operation panel of the energy storage device may be instructed to display the first alarm information, or the first alarm information may be sent to the control terminal of the energy storage device.

[0132] The first warning information may be a first-level warning information to prompt the staff to handle it as soon as possible, for example, it may be some pop-up messages or warning icons.

[0133] In the embodiment of the present application, the operation panel can be deployed at the location of the energy storage device. The control terminal is a device that can control the energy storage device. For example, the control terminal can be a user's mobile phone. The control terminal can also be a device that only receives information. In addition, the control terminal can also be other devices, which are not specifically limited here.

[0134] In this embodiment, Figure 3 and Figure 4As shown, the first state information includes the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device, and step 1200 includes: generating a second fire fighting strategy when it is determined that the second preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device.

[0135] As the degree of thermal runaway intensifies, CO gas will be further generated. The second preset condition is the condition for the second-level alarm of the energy storage device. When judging whether the second preset condition is met, CO concentration information is added to the judgment condition for the first-level alarm. The smoke concentration information, VOC concentration information and CO concentration information are used to comprehensively judge whether the energy storage device has a second-level alarm.

[0136] like Figure 3 and Figure 4 As shown, the conditions in the solid-line box in the figure are mandatory conditions, and the conditions in the dotted-line box in the figure are optional conditions. In one embodiment, the second preset condition includes that the smoke concentration of the energy storage device is greater than the first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, and the CO concentration of the energy storage device is greater than the third concentration value.

[0137] Under the condition of the first-level alarm, if it is further detected that the CO concentration is greater than the third concentration value, then a second-level alarm is issued. For example, the third concentration value can be 25%. In addition, the third concentration value can also be set to other values, which are not specifically limited here.

[0138] like Figure 3 and Figure 4 As shown, in another embodiment, the second preset condition also includes at least one of the following: the change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0139] In another embodiment, the second preset condition also includes at least one of the following: the rate of change of the smoke concentration of the energy storage device is greater than the first rate of change, the rate of change of the VOC concentration of the energy storage device is greater than the second rate of change, the rate of change of the CO concentration of the energy storage device is greater than the third rate of change, the temperature of the energy storage device is greater than the first temperature value, the temperature of the battery pack is greater than the second temperature value, and the voltage of the battery pack is less than the first voltage value.

[0140] When determining whether a level 2 alarm has occurred, the rate of change of smoke concentration and the rate of change of combustible gas concentration may also be included in the determination, so that a level 2 alarm can be determined more accurately.

[0141] The second fire fighting strategy may include: instructing the energy storage device to perform fire extinguishing after power is cut off, and / or instructing an alarm of the energy storage device to sound an alarm.

[0142] When the alarm level reaches level 2, it means that the thermal runaway is serious. At this time, the power supply of the energy storage device is cut off first, and then the fire-fighting device in the energy storage device is controlled to extinguish the fire. For example, a sprinkler is installed in the energy storage device, and the fire extinguishing agent is sprayed through the sprinkler to extinguish the fire. By cutting off the power supply of the energy storage device, the short circuit of the energy storage device caused by the fire extinguishing agent during the fire extinguishing process can be avoided, thereby improving safety.

[0143] The second level alarm is more serious than the first level alarm, and different alarms can be used for alarm. For example, if the first alarm is an alarm light, when the alarm level is level 1, the alarm light flashes for alarm. For example, if the alarm is a siren or an audible and visual alarm, when the alarm level is level 2, both sound and light are used for alarm. Users can know the degree of thermal runaway based on the alarm situation.

[0144] When the second fire fighting strategy is generated, the operation panel of the energy storage device may be instructed to display a second alarm message, or the second alarm message may be sent to the control terminal of the energy storage device. The second alarm message may be a secondary alarm message, for example, an alarm message reminding staff to stay away from the energy storage device. The second alarm message may be an audible alarm message.

[0145] like Figure 4 As shown, this embodiment can be implemented together with the embodiment corresponding to the first fire protection strategy described above. Figure 3 As shown, this embodiment can also be decoupled and implemented separately.

[0146] In this embodiment, Figure 5 and Figure 6 As shown, the first state information includes the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the temperature information of the energy storage device, and step 1200 includes: generating a third fire fighting strategy when it is determined that the third preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the temperature information of the energy storage device.

[0147] Since the temperature of smoke and combustible gas is relatively high, the temperature of the energy storage device will rise under the action of smoke and combustible gas. On the other hand, due to the large volume of the energy storage device, when there is less smoke and combustible gas in the energy storage device, the impact on the temperature of the energy storage device is small, and the increase in the temperature of the energy storage device is low. Only when there is a lot of smoke and combustible gas in the energy storage device will the temperature of the energy storage device increase significantly. The third preset condition is the judgment condition for the third level alarm of the energy storage device. When the third preset condition is met, the energy storage device will sound a third level alarm. Figure 2 As shown, when judging the third-level alarm, the accuracy of the judgment can be improved by adding the temperature of the energy storage device as a factor.

[0148] like Figure 5 and Figure 6 As shown, the conditions in the solid-line box in the figure are mandatory conditions, and the conditions in the dotted-line box in the figure are optional conditions. In one embodiment, the third preset condition includes that the smoke concentration of the energy storage device is greater than the first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than the third concentration value, and the temperature of the energy storage device is greater than the first temperature value.

[0149] For example, the first temperature value may be 75° C. In addition, the first temperature value may also be set to other values, which are not specifically limited here.

[0150] like Figure 5 and Figure 6 As shown, in another embodiment, the third preset condition also includes at least one of the following: the change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0151] The third firefighting strategy may include: instructing other energy storage devices near the energy storage device to shut down, instructing a third alarm of the energy storage device to sound an alarm, and instructing an external firefighting device of the energy storage device to perform a firefighting action.

[0152] Energy storage devices are usually not installed separately, but are installed together with multiple other energy storage devices. When the alarm level reaches level three, it means that the thermal runaway situation is very serious and may affect other nearby energy storage devices. If other nearby energy storage devices are still in operation, they may be affected by the energy storage device with thermal runaway, which may cause more serious situations and increase property losses. In order to reduce losses, when a level three alarm occurs, a shutdown command is sent to other nearby energy storage devices, and other nearby energy storage devices stop working after receiving the shutdown command. In addition, when a level three alarm occurs, using only the fire-fighting device of the energy storage device may not completely solve the problem of thermal runaway. At this time, a fire-fighting command can be sent to an external fire-fighting device to extinguish the fire through the external fire-fighting device to completely solve the temperature of thermal runaway. The external fire-fighting device can be the fire center in the area.

[0153] When the third fire fighting strategy is generated, the operation panel of the energy storage device may be instructed to display the third alarm information, or the third alarm information may be sent to the control terminal of the energy storage device.

[0154] like Figure 6 As shown, this embodiment can be implemented together with the embodiment corresponding to the first fire fighting strategy and the embodiment corresponding to the second fire fighting strategy. Figure 5 As shown, this embodiment can also be implemented separately in a decoupled manner.

[0155] In this embodiment, Figure 7 and Figure 8 As shown, the first state information includes the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device, and the second state information includes the voltage information of the battery pack. Step 1200 includes: generating a third fire protection strategy when it is determined that the fourth preset condition is met based on the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, and the voltage information of the battery pack.

[0156] The fourth preset condition is also the judgment condition corresponding to the third level alarm. When the fourth preset condition is met, the third level alarm is triggered. In the event of thermal runaway, the voltage of the battery pack will decrease. Figure 3 As shown, whether a level 3 alarm is triggered can be determined based on the smoke concentration, VOC concentration, CO concentration of the energy storage device and the voltage of the battery pack. The voltage of the battery pack can be detected by a voltage detection module, such as a voltage detection module in a battery management system (BMS).

[0157] like Figure 7 and Figure 8As shown, the conditions in the solid-line box in the figure are mandatory conditions, and the conditions in the dotted-line box in the figure are optional conditions. In one embodiment, the fourth preset condition includes that the smoke concentration of the energy storage device is greater than the first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than the third concentration value, and the voltage of the battery pack is less than the first voltage value.

[0158] The battery pack contains battery cells, the voltage of the battery pack may also be the voltage of the battery cells, and the first voltage value may be 1.5 V. The first voltage value may be set according to specific parameters of the battery pack, and is not limited here.

[0159] like Figure 7 and Figure 8 As shown, in another embodiment, the fourth preset condition also includes at least one of the following: the change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0160] like Figure 8 As shown, this embodiment can be implemented together with the embodiment corresponding to the first fire fighting strategy and the embodiment corresponding to the second fire fighting strategy. Figure 7 As shown, this embodiment can also be implemented separately in a decoupled manner.

[0161] In this embodiment, Fig. 9 and Fig.10 As shown, the first state information includes the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device, and the second state information includes the temperature information of the battery pack. Step 1200 includes: generating a third fire protection strategy when it is determined that the fifth preset condition is met based on the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, and the temperature information of the battery pack.

[0162] The fifth preset condition is also the judgment condition corresponding to the third level alarm. When the fifth preset condition is met, the third level alarm is triggered. In the event of thermal runaway, the temperature of the battery pack will rise. Figure 4 As shown, whether a third-level alarm is issued can be comprehensively judged based on the smoke concentration, VOC concentration, CO concentration of the energy storage device and the temperature of the battery pack.

[0163] like Fig. 9 and Fig.10As shown, the conditions in the solid-line box in the figure are mandatory conditions, and the conditions in the dotted-line box in the figure are optional conditions. In one embodiment, the fifth preset condition includes that the smoke concentration of the energy storage device is greater than the first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than the third concentration value, and the temperature of the battery pack is greater than the second temperature value.

[0164] The temperature of the battery pack may also be the temperature of the battery cells in the battery pack. For example, the second temperature value may be 100° C. The second temperature value may be set according to actual parameters of the battery pack and is not limited here.

[0165] like Fig. 9 and Fig.10 As shown, in another embodiment, the fifth preset condition also includes at least one of the following: the change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0166] like Fig.10 As shown, this embodiment can be implemented together with the embodiment corresponding to the first fire fighting strategy and the embodiment corresponding to the second fire fighting strategy. Fig. 9 As shown, this embodiment can also be implemented separately in a decoupled manner.

[0167] In this embodiment, Fig.11 and Fig.12 As shown, the first state information includes the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device; the second state information includes the temperature information of the battery pack, the voltage information of the battery pack, and the temperature information of the energy storage compartment; step 1200 includes: generating a third firefighting strategy when it is determined that the sixth preset condition is met based on the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, the temperature information of the battery pack, the voltage information of the battery pack, and the temperature information of the energy storage compartment.

[0168] The sixth preset condition is also the judgment condition corresponding to the third-level alarm. When the sixth preset condition is met, the third-level alarm is triggered. In the event of thermal runaway, the voltage of the battery pack will decrease, the temperature of the battery pack will increase, and the temperature of the energy storage device will also increase. Figure 5 As shown, whether a level 3 alarm is triggered can be comprehensively judged based on the smoke concentration, VOC concentration, CO concentration, battery pack voltage, battery pack temperature, and energy storage device temperature of the energy storage device. The more parameters in the judgment condition, the more accurate the judgment result of the alarm level.

[0169] like Fig.11and Fig.12 As shown, the conditions in the solid-line box in the figure are mandatory conditions, and the conditions in the dotted-line box in the figure are optional conditions. In one embodiment, the sixth preset condition includes that the smoke concentration of the energy storage device is greater than the first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than the third concentration value, the temperature of the energy storage device is greater than the first temperature value, the temperature of the battery pack is greater than the second temperature value, and the voltage of the battery pack is less than the first voltage value.

[0170] like Fig.11 and Fig.12 As shown, in another embodiment, the sixth preset condition also includes: the change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

[0171] like Fig.12 As shown, this embodiment can be implemented together with the embodiment corresponding to the first fire fighting strategy and the embodiment corresponding to the second fire fighting strategy. Fig.11 As shown, this embodiment can also be implemented separately in a decoupled manner.

[0172] In this embodiment, the energy storage device further includes an exhaust channel, and the exhaust channel is provided with an exhaust valve and an exhaust fan. The method further includes step 1300: when the alarm level is level one, opening the exhaust valve and the exhaust fan.

[0173] A plurality of exhaust channels may be provided in the energy storage device, and the number of exhaust channels may be determined according to the volume of the energy storage device. The larger the volume of the energy storage device, the greater the number of exhaust channels. An exhaust valve and an exhaust fan are provided in the exhaust channel, and the exhaust fan can exhaust only when the exhaust valve is opened. The exhaust fan can exhaust air into the energy storage device or to the outside of the energy storage device. After opening the exhaust valve and the exhaust fan, the gas inside the energy storage device is allowed to circulate with the gas outside the energy storage device, and the smoke and combustible gas inside the energy storage device are discharged to the outside of the energy storage device.

[0174] In this embodiment, step 1300 includes steps 1310-1330.

[0175] Step 1310: When the alarm level is level one, the state of the exhaust valve is obtained every first preset time period.

[0176] Step 1320: When the exhaust valve is in a closed state, the control power supply supplies power to the exhaust valve and then sends an opening command to the exhaust valve. When the opening state signal of the exhaust valve is received or after a second preset time period of sending an opening command to the exhaust valve, the power supply to the exhaust valve is disconnected, and the second preset time period is less than the first preset time period.

[0177] Step 1330: When receiving the opening state signal of the exhaust valve, turn on the exhaust fan.

[0178] The exhaust valve includes an open state and a closed state. In order to ensure that the gas in the energy storage device is discharged smoothly, the exhaust valve needs to be in an open state. The exhaust valve in this embodiment is an electronic valve, and the exhaust valve is opened by powering on the exhaust valve.

[0179] If the exhaust valve is in the closed state, then the exhaust valve is powered on. For example, a switch device is provided between the exhaust valve and the power supply. When the energy storage device is working normally, the switch device is in the disconnected state, the power supply does not power on the exhaust valve, and the exhaust valve is closed to ensure the sealing of the energy storage device. When an alarm occurs, the switch device is closed, the power supply powers on the exhaust valve, and the exhaust valve is opened. After the exhaust valve is opened, an open state signal is returned, and the open state signal is used to indicate that the exhaust valve has been opened. After the exhaust valve is opened, the power supply of the exhaust valve is disconnected, and the exhaust fan is turned on.

[0180] After the exhaust valve is powered on, the exhaust valve may fail to open. If the exhaust valve is powered on all the time, the exhaust valve will be damaged. In this embodiment, the energy storage device is set in an outdoor scene, and staff do not often check the status of the energy storage device. The life of the exhaust valve is more important in this scenario. If the exhaust valve has a short life, staff often need to replace it. In order to avoid damage to the exhaust valve and increase the service life of the exhaust valve, if the exhaust valve has not opened after the second preset time, stop powering the exhaust valve.

[0181] This embodiment stops powering the exhaust valve after the exhaust valve is opened or after a second preset time period of sending an opening command to the exhaust valve, thereby avoiding the exhaust valve being in a powered-on state all the time and improving the service life of the exhaust valve.

[0182] In this embodiment, after step 1300, the method further includes steps 1340-1350.

[0183] Step 1340: After the alarm is eliminated, receive a command from the user to close the exhaust.

[0184] Step 1350: In response to the exhaust closing instruction, control the exhaust valve and the exhaust fan to close.

[0185] The exhaust valve and exhaust fan are configured to not be closed automatically. After the exhaust valve and exhaust fan are opened, the exhaust fan will continue to exhaust. The staff needs to manually close the exhaust valve and exhaust fan. After the alarm is eliminated, the staff manually inputs the exhaust closing command. Figure 4 As shown, the staff can remotely input the exhaust closing command. The staff can also input the exhaust closing command through the controller of the energy storage device. There is a human-machine interaction interface on the controller of the energy storage device, and the staff can input the exhaust closing command on the human-machine interaction interface.

[0186] In this embodiment, a plurality of detection modules are provided in the energy storage device. If only one detection module is provided, when the detection module makes a false detection, a false alarm will be caused. In this embodiment, by providing a plurality of detection modules, each detection module can detect the first state information and the second state information. The plurality of detection modules are mutually redundant to improve the accuracy of the detection result, avoid the failure of a single detection, and reduce false alarms. For example, if there are four detection modules, if only one detection module detects state information that meets the alarm condition, and the state information detected by the other three detection modules does not meet the alarm condition, then the alarm is not triggered. If the state information detected by two or more detection modules meets the alarm condition, then the alarm is triggered.

[0187] like Fig.13 As shown, this embodiment introduces a fire treatment device 1300, including:

[0188] A receiving unit 1301 is used to obtain first state information and second state information, wherein the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack;

[0189] The processing unit 1302 is used to generate a fire fighting strategy according to the first state information and the second state information, wherein the fire fighting strategy is used to instruct the energy storage device to perform fire fighting on the energy storage device and the battery pack.

[0190] like Fig.14 As shown, this embodiment introduces an electronic device 1400, including a processor 1401 and a memory 1402, wherein the memory 1402 stores programs or instructions that can be executed on the processor 1401, and when the program or instructions are executed by the processor 1401, the steps of the fire treatment method described in any embodiment of the present invention are implemented.

[0191] The electronic device may be a fire controller disposed in the energy storage device. The fire controller may be a controller specially disposed in the energy storage device for fire control. The fire controller may also reuse an existing controller in the energy storage device.

[0192] This embodiment introduces a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the fire treatment method described in any embodiment of the present invention are implemented.

[0193] This embodiment introduces a computer program product, including a computer program / instruction. When the computer program / instruction processor is executed, the fire protection method as described in any embodiment of the present invention is implemented.

[0194] This embodiment introduces an energy storage device, including a sensor, a controller and a battery pack;

[0195] The sensor is used to detect first state information and second state information, the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack;

[0196] The controller is used to generate a fire fighting strategy according to the first state information and the second state information, and the fire fighting strategy is used to instruct the energy storage device to carry out fire fighting inside the energy storage device and inside the battery pack.

[0197] In this embodiment, the energy storage device further includes an exhaust fan and a waterproof cover. The exhaust fan is arranged on the top of the energy storage device, and the waterproof cover is arranged above the exhaust fan. One side of the waterproof cover is open and the top of the waterproof cover is closed.

[0198] In the case of thermal runaway, the smoke and flammable gas inside the energy storage device will move to the top of the energy storage device. Setting the exhaust fan on the top of the energy storage device can improve the exhaust efficiency and discharge the flammable gas and smoke in the energy storage device in a shorter time. At the same time, in order to prevent rainwater from flowing into the energy storage device through the exhaust fan, a waterproof cover is provided above the exhaust fan. The waterproof cover is placed above the exhaust fan, and the top of the waterproof cover is closed to block rainwater. One side of the waterproof cover is open for exhaust.

[0199] The present invention may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present invention.

[0200] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0201] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0202] The computer program instructions for performing the operation of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present invention.

[0203] Various aspects of the present invention are described herein with reference to the flow charts and / or block diagrams of the methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each box of the flow chart and / or block diagram and the combination of each box in the flow chart and / or block diagram can be implemented by computer-readable program instructions.

[0204] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0205] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0206] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a part of a module, a program segment or an instruction, and a part of the module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0207] Embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A fire fighting method, characterized in that: The method is applied to an energy storage device, the energy storage device comprising a cabinet and at least one battery pack arranged in the cabinet, and the method comprises: Acquire first state information and second state information, wherein the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack; A fire fighting strategy is generated according to the first status information and the second status information, wherein the fire fighting strategy is used to instruct the energy storage device to carry out fire fighting inside the energy storage device and inside the battery pack.

2. The method according to claim 1, characterized in that The first state information includes smoke concentration information of the energy storage device and volatile organic compound (VOC) concentration information of the energy storage device; The generating a fire fighting strategy according to the first state information and the second state information comprises: When it is determined that a first preset condition is met according to the smoke concentration information of the energy storage device and the VOC concentration information of the energy storage device, a first fire fighting strategy is generated.

3. The method according to claim 2, characterized in that The first preset condition includes: The smoke concentration of the energy storage device is greater than a first concentration value, and the VOC concentration of the energy storage device is greater than the second concentration value.

4. The method according to claim 3, characterized in that The first preset condition also includes at least one of the following: The change rate of the smoke concentration of the energy storage device is greater than the first change rate, and the change rate of the VOC concentration of the energy storage device is greater than the second change rate.

5. The method according to any one of claims 1 to 4, characterized in that: The first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and carbon monoxide (CO) concentration information of the energy storage device; The generating a fire fighting strategy according to the first state information and the second state information comprises: When it is determined that the second preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, and the CO concentration information of the energy storage device, a second fire fighting strategy is generated.

6. The method according to claim 5, characterized in that The second preset condition includes: The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than a second concentration value, and the CO concentration of the energy storage device is greater than a third concentration value.

7. The method according to claim 6, characterized in that The second preset condition also includes at least one of the following: The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

8. The method according to any one of claims 1 to 7, characterized in that: The first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, CO concentration information of the energy storage device, and temperature information of the energy storage device; The generating a fire fighting strategy according to the first state information and the second state information comprises: When it is determined that a third preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, and the temperature information of the energy storage device, a third firefighting strategy is generated.

9. The method according to claim 8, characterized in that The third preset condition includes: The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, and the temperature of the energy storage device is greater than a first temperature value.

10. The method according to claim 9, characterized in that The third preset condition also includes at least one of the following: The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

11. The method according to any one of claims 1 to 7, characterized in that: The first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and CO concentration information of the energy storage device, and the second state information includes voltage information of the battery pack; The generating a fire fighting strategy according to the first state information and the second state information comprises: When it is determined that the fourth preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the voltage information of the battery pack, a third fire fighting strategy is generated.

12. The method according to claim 11, characterized in that The fourth preset condition includes: The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, and the voltage of the battery pack is less than a first voltage value.

13. The method according to claim 12, characterized in that The fourth preset condition also includes at least one of the following: The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

14. The method according to any one of claims 1 to 7, characterized in that: The first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and CO concentration information of the energy storage device, and the second state information includes temperature information of the battery pack; The generating a fire fighting strategy according to the first state information and the second state information comprises: When it is determined that the fifth preset condition is met according to the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device and the temperature information of the battery pack, a third fire fighting strategy is generated.

15. The method according to claim 14, characterized in that The fifth preset condition includes: The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, and the temperature of the battery pack is greater than a second temperature value.

16. The method according to claim 15, characterized in that The fifth preset condition also includes at least one of the following: The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

17. The method according to any one of claims 1 to 7, characterized in that: The first state information includes smoke concentration information of the energy storage device, VOC concentration information of the energy storage device, and CO concentration information of the energy storage device; the second state information includes temperature information of the battery pack, voltage information of the battery pack, and temperature information of the energy storage compartment; The generating a fire fighting strategy according to the first state information and the second state information comprises: When it is determined that the sixth preset condition is met based on the smoke concentration information of the energy storage device, the VOC concentration information of the energy storage device, the CO concentration information of the energy storage device, the temperature information of the battery pack, the voltage information of the battery pack, and the temperature information of the energy storage compartment, a third fire fighting strategy is generated.

18. The method according to claim 17, characterized in that The sixth preset condition includes: The smoke concentration of the energy storage device is greater than a first concentration value, the VOC concentration of the energy storage device is greater than the second concentration value, the CO concentration of the energy storage device is greater than a third concentration value, the temperature of the energy storage device is greater than a first temperature value, the temperature of the battery pack is greater than a second temperature value, and the voltage of the battery pack is less than a first voltage value.

19. The method according to claim 18, characterized in that The sixth preset condition also includes: The change rate of the smoke concentration of the energy storage device is greater than the first change rate, the change rate of the VOC concentration of the energy storage device is greater than the second change rate, and the change rate of the CO concentration of the energy storage device is greater than the third change rate.

20. The method according to any one of claims 2 to 4, characterized in that: The generating of the first fire fighting strategy comprises: Instruct the energy storage device to shut down, and / or instruct an alarm of the energy storage device to sound an alarm.

21. The method according to any one of claims 5 to 7, characterized in that: The generating of the second fire fighting strategy comprises: Instruct the energy storage device to power off, instruct the alarm of the energy storage device to sound an alarm, and / or instruct the fire-fighting device of the energy storage device to perform fire extinguishing.

22. The method according to any one of claims 8 to 19, characterized in that: The generating of the third fire fighting strategy comprises: Instruct other energy storage devices near the energy storage device to shut down, instruct the alarm of the energy storage device to sound an alarm, and instruct the external fire-fighting device of the energy storage device to perform fire-fighting actions.

23. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the fire treatment method according to any one of claims 1 to 22 are implemented.

24. The electronic device according to claim 23, characterized in that: The electronic device is a fire controller arranged in the energy storage device.

25. A readable storage medium, characterized in that: The readable storage medium stores programs or instructions, and when the programs or instructions are executed by the processor, the steps of the fire treatment method according to any one of claims 1 to 22 are implemented.

26. A computer program product, characterized in that It comprises a computer program / instruction, and when the computer program / instruction processor is executed, it implements the fire handling method as described in any one of claims 1 to 22.

27. An energy storage device, characterized in that: Includes sensor, controller and battery pack; The sensor is used to detect first state information and second state information, the first state information is used to indicate the degree of thermal runaway of the energy storage device, and the second state information is used to indicate the degree of thermal runaway of the battery pack; The controller is used to generate a fire fighting strategy according to the first state information and the second state information, and the fire fighting strategy is used to instruct the energy storage device to carry out fire fighting inside the energy storage device and inside the battery pack.

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