Risk prevention and control methods and related devices for battery packs

Abstract

The present application discloses a risk prevention and control method for battery packs and related devices, the method comprising: obtaining the number of battery packs and the number of nozzle switches of a fire extinguishing assembly; determining the assembly number of target nozzle switches for a target battery pack according to the number of battery packs and the number of nozzle switches, the target battery pack being one of a plurality of battery packs, and the target nozzle switch being at least one of a plurality of nozzle switches; determining a plurality of fire risk values ​​corresponding to a plurality of position areas of a target battery pack; sorting the plurality of fire risk values ​​from high to low to obtain a fire risk sequence; determining an assembly strategy according to the fire risk sequence and the assembly quantity, the assembly strategy comprising the assembly position of the target battery pack for assembling the target nozzle switch. The present application is conducive to improving the prevention and control of fire risks, and improving the timeliness and accuracy of fire control.

Description

Technical Field

[0001] The present application relates to the technical field of battery energy storage systems, and in particular to a risk prevention and control method and related devices for battery packs. Background Art

[0002] In actual applications, energy storage containers are usually equipped with multiple racks, and each rack stores multiple battery packs for providing electrical energy. When a fire occurs in an energy storage container, the battery packs in the container will burn rapidly and produce toxic gases during combustion. There is also a risk of explosion, which poses a huge challenge to manual firefighting and rescue measures. At present, containers are usually equipped with fire-fighting equipment to automatically extinguish fires when fires occur in containers, reducing the risk of manual participation. However, existing fire-fighting equipment usually operates on the entire container and is unable to timely and accurately extinguish the fire at the location where the fire occurs, which makes it easy for the fire to spread and cause greater losses. Summary of the invention

[0003] The embodiments of the present application provide a risk prevention and control method and related devices for battery packs, in order to improve the prevention and control of fire risks and improve the timeliness and accuracy of fire control.

[0004] In a first aspect, an embodiment of the present application provides a risk prevention and control method for a battery pack, which is applied to an electronic device, and the method includes:

[0005] Obtain the number of battery packs and the number of nozzle switches of the fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with a plurality of the battery packs, the fire extinguishing assembly includes a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe includes a main pipe and a plurality of branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the plurality of branch pipes is connected to the main pipe; the nozzle switches are provided in plurality, the plurality of nozzle switches are respectively connected to one end of a branch pipe away from the main pipe, and are integrated into the battery pack, and the nozzle switch is activated when the real-time ambient temperature reaches a preset temperature to control the release of the fire extinguishing agent;

[0006] Determine the assembly quantity of the target nozzle switches to be assembled with the target battery pack according to the quantity of the battery packs and the quantity of the nozzle switches, the target battery pack is one of the plurality of battery packs, and the target nozzle switch is at least one of the plurality of nozzle switches;

[0007] Determining multiple fire risk values ​​corresponding to multiple location areas of the target battery pack;

[0008] Arrange the multiple fire risk values ​​in descending order to obtain a fire risk sequence;

[0009] An assembly strategy is determined according to the fire risk sequence and the assembly quantity, wherein the assembly strategy includes an assembly position of the target battery pack for assembling the target nozzle switch.

[0010] In a second aspect, an embodiment of the present application provides a risk prevention and control device for a battery pack, which is applied to an electronic device. The risk prevention and control device for a battery pack includes:

[0011] an acquisition unit, for acquiring the number of battery packs and the number of nozzle switches of the fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with a plurality of the battery packs, the fire extinguishing assembly comprises a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe comprises a main pipe and a plurality of branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the plurality of branch pipes is connected to the main pipe; a plurality of nozzle switches are provided, the plurality of nozzle switches are respectively connected to one end of a branch pipe away from the main pipe, and are integrated into the battery pack, and the nozzle switch is activated when the real-time ambient temperature reaches a preset temperature to control the release of the fire extinguishing agent;

[0012] A first determining unit is used to determine the assembly quantity of the target nozzle switches to be assembled with the target battery pack according to the quantity of the battery packs and the quantity of the nozzle switches, wherein the target battery pack is one of the plurality of battery packs, and the target nozzle switch is at least one of the plurality of nozzle switches;

[0013] A second determining unit, configured to determine a plurality of fire risk values ​​corresponding to a plurality of location areas of the target battery pack;

[0014] A sorting unit, used to sort the multiple fire risk values ​​from high to low to obtain a fire risk sequence;

[0015] A third determination unit is used to determine an assembly strategy according to the fire risk sequence and the assembly quantity, wherein the assembly strategy includes an assembly position of the target battery pack for assembling the target nozzle switch.

[0016] In a third aspect, an embodiment of the present application provides an electronic device, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the first aspect of the embodiment of the present application.

[0017] In a fourth aspect, an embodiment of the present application provides a computer storage medium that stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute some or all of the steps described in the first aspect of this embodiment.

[0018] It can be seen that in this embodiment, the electronic device obtains the number of battery packs and the number of nozzle switches of the fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with multiple battery packs, the fire extinguishing assembly includes a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe includes a main pipe and multiple branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the multiple branch pipes is connected to the main pipe; there are multiple nozzle switches, the multiple nozzle switches are respectively connected to one end of a branch pipe away from the main pipe, and are integrated in the battery pack, and the nozzle switch is turned on when the real-time ambient temperature reaches the preset temperature It is activated when the target battery pack is used to control the release of the fire extinguishing agent; then the assembly quantity of the target nozzle switch equipped with the target battery pack is determined according to the number of battery packs and the number of nozzle switches, the target battery pack is one of the multiple battery packs, and the target nozzle switch is at least one of the multiple nozzle switches; and multiple fire risk values ​​corresponding to multiple position areas of the target battery pack are determined; the multiple fire risk values ​​are sorted in order from high to low to obtain a fire risk sequence; thus, the assembly strategy is determined according to the fire risk sequence and the assembly quantity, and the assembly strategy includes the assembly position of the target battery pack for assembling the target nozzle switch. It can be seen that the present application is conducive to improving the intelligence and reliability of fire safety prevention and control of battery packs. By determining the assembly position of the nozzle switch assembled on a single battery pack according to the fire risk sequence and the assembly quantity, the correspondence between the installation position of the nozzle switch and the location of the fire can be improved, so as to control the fire in a timely and accurate manner, thereby improving the prevention and control of fire risks and reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the architecture of a master control system provided in an embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the architecture of an energy storage system provided in an embodiment of the present application;

[0022] Figure 3 It is a structural schematic diagram of an energy storage container provided in an embodiment of the present application;

[0023] Figure 4 is a structural schematic diagram of an energy storage device provided in an embodiment of the present application;

[0024] Figure 5 is a structural schematic diagram of another energy storage device provided in an embodiment of the present application;

[0025] Figure 6 is a schematic diagram of the structure of a battery pack provided in an embodiment of the present application;

[0026] Figure 7 is a schematic diagram of the structure of another battery pack provided in an embodiment of the present application;

[0027] Figure 8 is a cross-sectional schematic diagram of a nozzle switch provided in an embodiment of the present application;

[0028] Fig. 9 is a cross-sectional schematic diagram of another nozzle switch provided in an embodiment of the present application;

[0029] Fig.10 It is a flow chart of a risk prevention and control method for a battery pack provided in an embodiment of the present application;

[0030] Fig.11 is a composition example diagram of an electronic device provided in an embodiment of the present application;

[0031] Fig.12 This is a functional unit composition block diagram of a first risk prevention and control device for a battery pack provided in an embodiment of the present application;

[0032] Fig.13 It is a block diagram of the functional units of a second risk prevention and control device for a battery pack provided in an embodiment of the present application.

[0033] Description of Figure Numbers:

[0034] 1000, energy storage container; 100, fire extinguishing assembly; 10, fire extinguishing agent storage container; 20, guide pipe; 21, main pipe; 22, branch pipe; 30, nozzle switch; 31, nozzle body; 31a, release port; 31b, air guide channel; 32, sealing plug; 33, temperature sensing element; 34, electric control switch; 35, air pressure display element; 200, rack; 40, rack body; 50, battery pack; 60, integrated module; 300, box. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] The embodiments of the present application are described below with reference to the accompanying drawings.

[0039] The technical solution of the present application is applied to an electronic device, which may be a server or a local device. Among them, the server may be a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The server includes but is not limited to servers equipped with IOS systems, Android systems, Microsoft systems or other operating systems, which are not limited here. The local device may be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, a computing device or other processing device connected to a wireless modem, as well as various forms of user equipment (UE), mobile station (MS), terminal device (terminal device), etc. Exemplarily, the technical solution of the present application can be applied to the main control module of the energy storage container, or to the control module of the ventilation device.

[0040] In a specific implementation, the technical solution of the present application can be independently applied to electronic equipment, and management personnel can configure the electronic equipment according to the assembly strategy obtained by executing the following method to obtain the following energy storage container.

[0041] Alternatively, the technical solution of the present application can be applied to electronic devices other than energy storage systems, such as Figure 1The master control system 110 shown includes an electronic device and an energy storage system. The following method can be executed by the electronic device, and the execution result can be transmitted to the energy storage system so that the energy storage system can execute or monitor the execution result. Specifically, the electronic device can execute the following method to obtain an assembly strategy, and send the assembly strategy to the energy storage system, and the energy storage system forwards it to the management personnel to configure the following energy storage container.

[0042] Alternatively, the technical solution of the present application can be applied to an energy storage system, that is, the electronic device is a device in the energy storage system. Figure 2 The energy storage system 120 shown includes a configuration module and a control module. The configuration module is used to execute the following method, and the control module is used to control the energy storage system to execute operations such as power input, power output, and fire monitoring.

[0043] Specifically, see Figures 3 to 9 The energy storage container 1000 described above includes a box body 300 and an energy storage device. The energy storage device includes a rack 200 and a fire extinguishing assembly 100. The rack 200 includes a rack body 40 and a battery pack 50, and the rack body 40 is formed with multiple installation positions; the battery pack 50 is provided with multiple, and a single battery pack 50 is assembled at a single installation position; the nozzle switch 30 of the fire extinguishing assembly 100 is integrated into the battery pack 50 on the rack 200.

[0044] Specifically, see Figures 3 to 9 The present application provides a fire extinguishing assembly 100, which includes a fire extinguishing agent storage container 10, a guide pipe 20 and a nozzle switch 30. The guide pipe 20 includes a main pipe 21 and multiple branch pipes 22. One end of the main pipe 21 is connected to the fire extinguishing agent storage container 10, and one end of each of the multiple branch pipes 22 is connected to the main pipe 21; there are multiple nozzle switches 30, and the multiple nozzle switches 30 are respectively connected to one end of the branch pipe away from the main pipe 21, and are integrated into the battery pack 50 on the battery pack rack. The nozzle switch 30 is used to turn off or turn on the branch pipe 22 and the space inside the battery pack 50.

[0045] The fire extinguishing agent storage container 10 may be a fire extinguishing tank or other container that can store fire extinguishing agent.

[0046] The guide pipe 20 may be an integrated structure to reduce the possibility of fire extinguishing agent leakage. Alternatively, the guide pipe 20 may be formed by splicing a plurality of pipe bodies by plugging or threading to facilitate assembly of the guide pipe 20.

[0047] The main pipe 21 is a pipe that draws out the fire extinguishing agent from the fire extinguishing agent storage container 10 and is shared by a plurality of branch pipes 22 connected to the battery pack 50. The branch pipe 22 is a pipe that diverts the fire extinguishing agent drawn out from the main pipe 21 to the battery pack 50.

[0048] Specifically, the guide tube 20 can be a hose, which is conducive to improving the flexibility of the installation of the guide tube 20 and reducing the probability of damage to the guide tube 20. Exemplarily, when the guide tube 20 is a hose and the guide tube 20 is spliced ​​by multiple tubes, a joint can be provided at the end of a single tube to facilitate the assembly of two adjacent tubes.

[0049] Specifically, the guide pipe 20 is pressurized, that is, the air pressure in the space connecting the fire extinguishing agent storage container 10 and the guide pipe 20 is higher than the ambient air pressure, which is conducive to the smooth release of the fire extinguishing agent when the nozzle switch 30 connects the branch pipe 22 and the space in the battery pack 50.

[0050] The nozzle switch 30 may be a physical switch or an electric switch 34. Exemplarily, if the nozzle switch 30 is an electric switch 34, when no fire occurs in the battery pack 50, the nozzle switch 30 may be controlled to be turned off to block the connection between the space in the battery pack 50 and the branch pipe 22 connected to the battery pack 50. When a fire is detected in the battery pack 50, the control is activated, and the nozzle switch 30 is turned on to conduct the space in the battery pack 50 and the branch pipe 22 connected to the battery pack 50, so that the fire extinguishing agent can be sprayed into the battery pack 50 through the branch pipe 22 to extinguish the fire in the battery pack 50.

[0051] It can be seen that the fire extinguishing assembly 100 proposed by the present invention includes a fire extinguishing agent storage container 10, a guide pipe 20 and a nozzle switch 30. The guide pipe 20 includes a main pipe 21 and a plurality of branch pipes 22. One end of the main pipe 21 is connected to the fire extinguishing agent storage container 10, and one end of each of the plurality of branch pipes 22 is connected to the main pipe 21. There are a plurality of nozzle switches 30, and the plurality of nozzle switches 30 are respectively connected to one end of a branch pipe away from the main pipe 21 and integrated into the battery pack 50 on the battery pack rack. The nozzle switch 30 is used to shut off or connect the branch pipe 22 and the space inside the battery pack 50. It can be seen that when a fire occurs in a battery pack 50, the nozzle switch 30 integrated in the battery pack 50 can be activated to connect the guide pipe 20 and the space inside the battery pack 50, so that the fire extinguishing agent stored in the fire extinguishing agent storage container 10 is guided to the battery pack 50 through the guide pipe 20 to extinguish the fire of the battery pack 50. The present application guides the fire extinguishing agent in the same fire extinguishing agent storage container 10 to different battery packs 50 through the guide tube 20. Compared with configuring one fire extinguishing agent storage container 10 for a single battery pack 50, it can effectively save installation space, thereby expanding the energy storage capacity of the battery pack 50. At the same time, by integrating the nozzle switch 30 on the battery pack 50, when a single battery pack 50 catches fire, it can be activated in a timely and accurate manner to extinguish the fire, thereby improving the success rate of fire safety control.

[0052] See also Figure 8 or Fig. 9 In a possible example, the nozzle switch 30 includes a nozzle body 31, a sealing plug 32 and a temperature sensing component 33. The nozzle body 31 is connected to the branch pipe 22 and installed on the battery pack 50. The nozzle body 31 is provided with a release port 31a, and the release port 31a faces the inside of the battery pack 50 and communicates with the space inside the battery pack 50. The nozzle body 31 is formed with an air guide channel 31b connecting the release port 31a and the branch pipe 22; the sealing plug 32 is located in the air guide channel 31b and can move in the air guide channel 31b, and when moving, it shuts off or connects the air guide channel 31b and the release port 31a; the temperature sensing component 33 is located in the air guide channel 31b and abuts between the nozzle body 31 and the temperature sensing component 33.

[0053] The nozzle body 31 is embedded and installed on the box of the battery pack 50. The release port 31a of the nozzle body 31 is the fire extinguishing agent output port of the fire extinguishing assembly 100, and the release port 31a can connect the air channel 31b and the space in the battery pack 50 when the nozzle switch 30 conducts the air channel 31b and the release port 31a.

[0054] The sealing plug 32 is a piston, which can move in the air guiding channel 31b to open or close the air guiding channel 31b and the release port 31a.

[0055] The temperature sensing element 33 is a temperature sensing glass bulb, which can break when subjected to external stimulation (such as when the ambient temperature is higher than the temperature that the temperature sensing element 33 can withstand) to release the liquid in the glass bulb. The temperature that the temperature sensing element 33 can withstand refers to the temperature when a fire occurs.

[0056] Specifically, when the ambient temperature reaches the ignition temperature (i.e., the temperature at which a fire occurs), the temperature sensing element 33 will be affected by the temperature and rupture, thereby causing the liquid in the temperature sensing element 33 to be released, thereby causing the temperature sensing element 33 to deform, and the deformed temperature sensing element 33 will no longer abut against the nozzle body 31 and the sealing plug 32. Since the air pressure in the branch pipe 22 is greater than the air pressure in the battery pack 50, the sealing plug 32 will be affected by the air pressure and move in the air guide channel 31b after not being subject to the resistance of the abutment of the temperature sensing element 33, thereby connecting the air guide channel 31b and the release port 31a, thereby allowing the fire extinguishing agent to be sprayed from the release port 31a into the battery pack 50 to extinguish the fire in the battery pack 50.

[0057] It can be seen that in this example, by configuring the nozzle switch 30 to be activated by the linkage of the temperature sensing element 33 and the sealing plug 32, the nozzle switch 30 does not need to be electrically controlled, and the fire extinguishing can be activated by the physical structure. Compared with the time point of the electric control activation, the fire extinguishing time can be advanced, the fire extinguishing efficiency is improved, and the production cost can be reduced.

[0058] In a possible example, the battery pack 50 is provided with a mounting hole, the nozzle body 31 includes a mounting frame (not shown) and a mounting plate (not shown), the branch pipe 22 is connected to the mounting frame, the release port 31a and the air guide channel 31b are formed on the mounting frame, and the mounting frame is installed in the mounting hole; the mounting plate connects the battery pack 50 and the mounting frame.

[0059] The mounting hole is formed on the box of the battery pack 50 to accommodate the nozzle switch 30 .

[0060] The mounting frame is used to open or close the air guide channel 31 b and the release port 31 a. The mounting frame is located in the mounting hole to ensure the communication between the release port 31 a and the space inside the battery pack 50.

[0061] Specifically, the mounting frame and the mounting plate can be an integrated structure, and the mounting plate is bent and connected to the mounting frame to ensure the stability of the connection between the mounting frame and the mounting plate. The mounting plate and the battery pack 50 are provided with corresponding mounting holes, so that the mounting plate can be stably mounted on the box of the battery pack 50 through screws and other structures to ensure the stability of the connection between the mounting plate and the battery pack 50, prevent the nozzle switch 30 from being separated from the battery pack 50, and ensure the reliability of fire control. Alternatively, the mounting frame can be installed in the mounting hole through the mounting plate to improve the convenience of assembling the nozzle switch 30.

[0062] It can be seen that in this example, by configuring the nozzle body 31 to be a two-part structure of a mounting frame and a mounting plate, it is beneficial to improve the convenience of assembling the nozzle body 31 and the battery pack 50 while ensuring the structural stability of the nozzle body 31.

[0063] See also Fig. 9 In a possible example, the nozzle body 31 further includes an electric control switch 34, and the electric control switch 34 is used to activate the temperature sensing element 33 to open the air guide channel 31b.

[0064] The electric control switch 34 may be a motor. The motor includes a motor body and an ejector pin electrically connected to the energy storage system. The motor body is connected to the nozzle body 31. The ejector pin is connected to the motor body and is at least partially located in the air guide channel 31b. The motor body can drive the ejector pin to extend and retract, and stimulate and activate the temperature sensing element 33 when extending and retracting.

[0065] Specifically, the energy storage system can monitor the temperature or air pressure in the battery pack 50. When it is detected that the temperature in the battery pack 50 is higher than the preset temperature, or the air pressure in the battery pack 50 is higher than the preset air pressure, the energy storage system can control the electric control switch 34 to start, so that the motor body of the electric control switch 34 drives the ejector pin to extend and retract. The ejector pin can pierce the temperature sensing element 33 when extending and retracting to release the liquid in the temperature sensing element 33, thereby achieving the communication between the air guide channel 31b and the release port 31a.

[0066] It can be seen that in this example, by installing an electric control switch 34 on the nozzle body 31, the controllability of fire prevention and control can be improved. When the tolerable temperature critical value of the temperature sensing component 33 has not been reached but there is a need for use, the fire extinguishing agent can be assisted in releasing, thereby increasing the diversity of the use scenarios of the fire extinguishing assembly 100.

[0067] See also Fig. 9 In one possible example, the nozzle switch 30 is further provided with an air pressure display 35, which is used to detect the air pressure at the end where the nozzle switch 30 is connected to the branch pipe 22, that is, the air pressure in the branch pipe 22. The air pressure display 35 can be an air pressure detection device such as a barometer. In this example, by providing the air pressure display 35, the air pressure on one side of the guide pipe 20 can be detected, which is helpful for the management personnel to identify the fire extinguishing agent leakage at the guide pipe 20, the connection between the guide pipe 20 and the nozzle switch 30, or the connection between the guide pipe 20 and the fire extinguishing agent storage container 10.

[0068] See also Figure 6 or Figure 7In one possible example, a single battery pack 50 is integrated with a plurality of the nozzle switches 30. Specifically, one or more nozzle switches 30 may be integrated and assembled on a single battery pack 50 as required. In this example, by integrating and assembling a plurality of nozzle switches 30 on a single battery pack 50, targeted fire control can be achieved in different position areas of the battery pack 50, further improving the accuracy of fire prevention and control. At the same time, by integrating and assembling a plurality of nozzle switches 30 on a single battery pack 50, the unit release amount of fire extinguishing agent that can be released by a single battery pack 50 can also be increased, thereby improving the fire extinguishing effect and improving the reliability of fire control.

[0069] See also Figure 6 or Figure 7 In a possible example, the plurality of nozzle switches 30 are arranged at intervals on the circumferential side of the battery pack 50 .

[0070] In a specific implementation, a plurality of nozzle switches 30 may be evenly distributed on the circumferential side of the battery pack 50 to evenly release the fire extinguishing agent in all directions, so as to evenly prevent and control the fire in all directions and improve the reliability of prevention and control.

[0071] Alternatively, in a specific implementation, when a single battery pack 50 can be equipped with a large number of nozzle switches 30, for example, more than three, they can be concentrated in areas with a higher probability of fire, and dispersed in other locations. This ensures that all locations of the battery pack 50 can be effectively controlled, and when a fire occurs in an area with a higher probability of fire, the fire can be extinguished more quickly to prevent the fire from spreading.

[0072] It can be seen that in this example, by arranging multiple nozzle switches 30 at intervals on the circumferential side of the battery pack 50, targeted fire control can be achieved in different position areas of the battery pack 50 without affecting the placement of the battery pack 50. The accuracy of fire prevention and control is further improved. At the same time, by integrating multiple nozzle switches 30 in a single battery pack 50, the unit release amount of fire extinguishing agent that can be released by a single battery pack 50 can also be increased, thereby improving the fire extinguishing effect and improving the reliability of fire control.

[0073] In one possible example, the energy storage device further includes an integrated module, which is mounted on the top of the rack body, and the fire extinguishing agent storage container is located in the integrated module. In this example, by placing the integrated module 60 configured with the fire extinguishing agent storage container 10 on the top of the rack body 40, not only can the length of the guide pipe 20 be shortened and the fire extinguishing agent release efficiency be improved, but also the plane space for placing the fire extinguishing agent storage container 10 can be reduced, thereby improving space utilization. At the same time, placing the integrated module 60 on the top of the rack body 40 also reduces the release resistance when the fire extinguishing agent is released due to the influence of gravity, thereby further accelerating the release efficiency.

[0074] In a possible example, the integrated module 60 includes a display unit, and the display unit is used to display the air pressure data in the fire extinguishing agent storage container 10. In this example, by providing the display unit in the integrated module 60, it is helpful for the management personnel to identify the leakage of the fire extinguishing agent during the inspection, so as to carry out timely maintenance and repair, and ensure the reliability of fire prevention and control.

[0075] In a possible example, the integrated module 60 includes an information feedback unit, which is used to report the activation information of the fire extinguishing component 100. Specifically, the information feedback unit can be used to feedback the air pressure data in the fire extinguishing agent storage container 10, the activation information of the fire extinguishing component 100, etc., so as to monitor the situation of the energy storage device and ensure that the management personnel can know the abnormal situation (such as fire extinguishing agent leakage, fire, etc.) in time, so as to maintain and repair the energy storage device in time and ensure the reliability of power supply of the energy storage device.

[0076] See also Fig.10 , Fig.10 : is a flow chart of a risk prevention and control method for a battery pack provided in an embodiment of the present application. The risk prevention and control method for a battery pack can be used to configure the above-mentioned fire extinguishing component. The risk prevention and control method for a battery pack includes:

[0077] Step S101, obtaining the number of battery packs and the number of sprinkler switches of the fire extinguishing assembly.

[0078] Among them, the battery pack is equipped on a rack, and the rack is equipped with multiple battery packs. The fire extinguishing assembly includes a fire extinguishing agent storage container, a guide pipe and a nozzle switch. The guide pipe includes a main pipe and multiple branch pipes. One end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the multiple branch pipes is connected to the main pipe; there are multiple nozzle switches, and the multiple nozzle switches are respectively connected to one end of a branch pipe away from the main pipe, and are integrated into the battery pack. The nozzle switch is activated when the real-time ambient temperature reaches a preset temperature to control the release of the fire extinguishing agent.

[0079] Among them, the number of battery packs refers to the number of battery packs that need to be equipped with the sprinkler switch. It can be set specifically according to needs and is not further restricted here. Exemplarily, the number of battery packs may refer to the total number of battery packs assembled on a single rack body to improve the management of the configuration of the fire extinguishing component. Alternatively, the number of battery packs may refer to the number of partial battery packs assembled on a single rack body. Alternatively, the number of battery packs may refer to the number of all or part of the battery packs assembled on multiple different rack bodies.

[0080] The number of nozzle switches refers to the number of nozzle switches connected to a single fire extinguishing agent storage container. The number of nozzle switches is multiple to increase the number of battery packs that can be configured corresponding to a single fire extinguishing agent storage container, thereby saving installation space.

[0081] Specifically, the number of battery packs and the number of nozzle switches can be data manually input by the management personnel according to the requirements. The number of battery packs is less than or equal to the number of nozzle switches to ensure that all battery packs can be equipped with a corresponding number of nozzle switches.

[0082] Step S102, determining the assembly quantity of the target nozzle switches to be assembled with the target battery pack according to the quantity of the battery packs and the quantity of the nozzle switches.

[0083] Wherein, the target battery pack is one of the multiple battery packs, and the target nozzle switch is at least one of the multiple nozzle switches.

[0084] In a specific implementation, when determining the number of target nozzle switches to be assembled corresponding to the target battery pack, the number of battery packs and the number of nozzle switches can be compared first. If the number of battery packs is equal to the number of nozzle switches, one nozzle switch can be configured and installed for each battery pack, and the number of target nozzle switches assembled for the target battery pack is one. If the number of battery packs is greater than the number of nozzle switches, it can be determined whether the number of nozzle switches is an integer multiple of the number of battery packs, and if it is an integer multiple, the same number (i.e., an integer multiple) of nozzle switches are configured for all battery packs.

[0085] Alternatively, in a specific implementation, when the number of battery packs is greater than the number of nozzle switches; or, when the number of battery packs is greater than the number of nozzle switches, and the number of nozzle switches is not an integer multiple of the number of battery packs, the assembly quantity corresponding to the target battery pack can be determined according to the risk levels corresponding to different battery packs. At this time, the assembly quantity corresponding to each target battery pack is greater than or equal to one. Among them, the risk level corresponding to the battery pack is determined according to the maximum fire risk value among the fire risk values ​​corresponding to multiple position areas corresponding to the battery pack. The greater the maximum fire risk value corresponding to the battery pack, the greater the risk level corresponding to the battery pack.

[0086] Specifically, the number of nozzle switches and the number of battery packs are subtracted to obtain the quantity difference, and then the nozzle switches are configured for the battery pack again in turn according to the risk level corresponding to the battery pack. The number of nozzle switches configured this time can be determined according to the corresponding relationship between the risk level and the preset configuration number. In order to more accurately control the risk of the battery pack. Exemplarily, if the number of nozzle switches is 8 and the number of battery packs is 5, the number difference can be determined to be 3. Then the risk level corresponding to the battery pack can be determined, and then the nozzle switches are configured for the battery pack again in turn according to the risk level corresponding to the battery pack. If the battery pack with the highest preset risk level needs to be configured with 4 nozzle switches, the 3 unconfigured nozzle switches can be configured to the battery pack. Alternatively, if the battery pack with the highest preset risk level needs to be configured with 3 nozzle switches, 2 of the 3 unconfigured nozzle switches can be configured to the battery pack. The remaining 1 is configured to the battery pack corresponding to the lower risk level. Among them, the corresponding relationship between the risk level and the preset configuration number is pre-stored data.

[0087] Or, specifically, the quotient and remainder obtained by dividing the number of nozzle switches and the number of battery packs can be determined first, and the number of nozzle switches configured for each battery pack is greater than or equal to the value corresponding to the quotient. The remainder nozzle switches can be configured in the same manner as the difference in quantity described above, which will not be further described here.

[0088] Step S103, determining a plurality of fire risk values ​​corresponding to a plurality of location areas of the target battery pack.

[0089] Among them, the fire risk value is used to characterize the probability of fire occurring in the corresponding location area.

[0090] Among them, the location area is obtained by dividing the battery pack according to a preset area range size. The preset area range size can be set according to usage requirements or experience values, etc., and no further restrictions are made here.

[0091] Specifically, the fire risk value of different location areas is associated with the heat bearing threshold of the electronic device in the location area and the unit heat energy generated when the electronic device is in operation. The fire risk value can be determined based on the heat bearing threshold and the unit heat energy. The heat bearing threshold is the ignition point temperature of the electronic device.

[0092] Step S104: sort the multiple fire risk values ​​from high to low to obtain a fire risk sequence.

[0093] Arranging multiple fire risk values ​​into a fire risk sequence is beneficial to the management and use of multiple fire risk values, thereby improving the intelligence of electronic equipment in data processing and improving the orderliness and efficiency of electronic equipment in generating assembly strategies.

[0094] Step S105: determining an assembly strategy according to the fire risk sequence and the assembly quantity.

[0095] Wherein, the assembly strategy includes an assembly position of the target battery pack for assembling the target nozzle switch.

[0096] In actual applications, managers can produce and configure fire extinguishing components and battery packs according to the assembly strategy, so as to achieve fire risk prevention and control according to the information associated with the assembly strategy in actual applications. For example, when the temperature corresponding to the assembly position of the target sprinkler switch is higher than the temperature that the temperature sensing component of the target sprinkler switch can withstand (that is, when a fire occurs in the area where the assembly position is located), the temperature sensing component will rupture, so that the fire extinguishing agent is released to the assembly position through the target sprinkler switch to extinguish the fire.

[0097] It can be seen that in this embodiment, the electronic device obtains the number of battery packs and the number of nozzle switches of the fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with multiple battery packs, the fire extinguishing assembly includes a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe includes a main pipe and multiple branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the multiple branch pipes is connected to the main pipe; there are multiple nozzle switches, the multiple nozzle switches are respectively connected to one end of a branch pipe away from the main pipe, and are integrated in the battery pack, and the nozzle switch is turned on when the real-time ambient temperature reaches the preset temperature It is activated when the target battery pack is used to control the release of the fire extinguishing agent; then the assembly quantity of the target nozzle switch equipped with the target battery pack is determined according to the number of battery packs and the number of nozzle switches, the target battery pack is one of the multiple battery packs, and the target nozzle switch is at least one of the multiple nozzle switches; and multiple fire risk values ​​corresponding to multiple position areas of the target battery pack are determined; the multiple fire risk values ​​are sorted in order from high to low to obtain a fire risk sequence; thus, the assembly strategy is determined according to the fire risk sequence and the assembly quantity, and the assembly strategy includes the assembly position of the target battery pack for assembling the target nozzle switch. It can be seen that the present application is conducive to improving the intelligence and reliability of fire safety prevention and control of battery packs. By determining the assembly position of the nozzle switch assembled on a single battery pack according to the fire risk sequence and the assembly quantity, the correspondence between the installation position of the nozzle switch and the location of the fire can be improved, so as to control the fire in a timely and accurate manner, thereby improving the prevention and control of fire risks and reducing losses.

[0098] In one possible example, determining multiple fire risk values ​​corresponding to multiple location areas of the target battery pack includes: performing the following steps for each location area of ​​the multiple location areas: obtaining product attribute information and operation information of an electronic device assembled in a single location area, the product attribute information being used to indicate a heat-bearing threshold of the electronic device, and the operation information being used to indicate a unit heat energy generated by the electronic device per unit time; determining a first risk value of the electronic device based on the product attribute information; determining a second risk value of the electronic device based on the operation information; and determining the fire risk value corresponding to the location area based on the first risk value and the second risk value.

[0099] The heat-bearing threshold of the electronic device is determined by the material of the electronic device. The unit heat energy of the electronic device is determined by the operating power of the electronic device, and the operating power is configured by the energy storage system to control the operation of the electronic device.

[0100] Specifically, the smaller the heat-bearing threshold corresponding to the electronic device, the greater the risk of fire of the electronic device. Therefore, the smaller the heat-bearing threshold corresponding to the electronic device, the greater the first risk value corresponding to the electronic device. The larger the unit thermal energy corresponding to the electronic device, the greater the risk of fire of the electronic device. Therefore, the larger the unit thermal energy corresponding to the electronic device, the greater the second risk value corresponding to the electronic device.

[0101] In a specific implementation, the method for determining the fire risk value corresponding to the location area based on the first risk value and the second risk value is: summing the first risk value and the second risk value corresponding to the electronic device, so as to determine the sum of the first risk value and the second risk value corresponding to the electronic device as the fire risk value of the electronic device, so as to ensure the reliability of the determined fire risk value.

[0102] It can be seen that in this example, by determining the fire risk value corresponding to the location area based on the first risk value and the second risk value, the determined fire risk value used to characterize the probability of fire in the electronic device can be associated with the heat bearing threshold and unit thermal energy of the electronic device, thereby ensuring the reliability of the determined fire risk value.

[0103] In a possible example, determining the first risk value of the electronic device according to the product attribute information; determining the second risk value of the electronic device according to the operation information; includes: obtaining a first relationship correspondence table and a second relationship correspondence table; the first relationship correspondence table is used to characterize the association between the heat-bearing threshold and the first risk value, and the second relationship correspondence table is used to characterize the association between the unit thermal energy and the second risk value; querying the first relationship correspondence table according to the heat-bearing threshold to determine the first risk value; querying the second relationship correspondence table according to the unit thermal energy to determine the second risk value.

[0104] The first relationship correspondence table and the second relationship correspondence table are stored data.

[0105] Specifically, the first relationship correspondence table includes risk values ​​corresponding to different temperature ranges. For example, the first relationship correspondence table includes data such as the risk value corresponding to 0°C to 30°C is 5, the risk value corresponding to 30°C to 60°C is 4, and the risk value corresponding to 60°C to 90°C is 3. If the heat threshold corresponding to the electronic device is 45°C, then according to the heat threshold, the first risk value of the electronic device can be found to be 4 by querying the first relationship correspondence table. Similarly, the second relationship correspondence table includes risk values ​​corresponding to unit thermal energy ranges. The method of querying the second relationship correspondence table according to unit thermal energy refers to the above-mentioned first risk value determination method, which will not be further described here.

[0106] It can be seen that in this example, by querying the first relationship correspondence table according to the heat bearing threshold to determine the first risk value; and querying the second relationship correspondence table according to the unit thermal energy to determine the second risk value, the efficiency of the electronic device in determining the first risk value and the second risk value can be improved.

[0107] In a possible example, determining the assembly strategy based on the fire risk sequence and the assembly quantity includes: when it is determined that the assembly quantity is one, determining the position area corresponding to the fire risk value ranked most forward in the fire risk sequence as the assembly position; when it is determined that the assembly quantity is multiple, determining the assembly number of assembly positions according to the fire risk sequence.

[0108] Among them, one position area can be equipped with one nozzle switch, that is, one position area corresponds to one assembly position.

[0109] Specifically, when the number of nozzle switches installed corresponding to a battery pack is one, the nozzle switch is installed in the position area of ​​the battery pack where the fire risk value is closest (i.e., the fire risk value is the largest), that is, the nozzle switch is installed in the position area of ​​the battery pack where the probability of fire is the highest, which is beneficial to improving the accuracy of risk prevention and control of the battery pack.

[0110] Specifically, when the number of nozzle switches corresponding to the battery pack is multiple, the position area (i.e., the assembly position) for assembling the nozzle switch can be determined from all position areas of the battery pack according to the fire risk sequence, which can improve the accuracy of battery pack risk prevention and control while improving the effectiveness of battery pack risk prevention and control.

[0111] It can be seen that in this example, by determining different assembly positions according to the different numbers of nozzle switches corresponding to the battery pack, it is beneficial to improve the effect of the nozzle switch on fire risk prevention and control for the battery pack.

[0112] In a possible example, when it is determined that the assembly quantity is multiple, determining the assembly quantity and assembly positions according to the fire risk sequence includes: obtaining a first number of the fire risk values ​​ranked at the top in the fire risk sequence, the first number being the assembly quantity; determining the risk difference between two adjacent fire risk values ​​in the first number of the fire risk values; comparing each of the risk difference values ​​with a preset difference value; if all of the risk differences are less than or equal to the preset difference value, determining the position area corresponding to the first number of the fire risk values ​​ranked at the top in the fire risk sequence as the assembly position; if there is at least one risk difference value greater than the preset difference value, determining a second number of position areas ranked at the top and a third number of position areas adjacent to the position area as the assembly position, the sum of the second number and the third number being the assembly quantity, the second number being the number of all fire risk values ​​ranked before the smaller fire risk value among the two fire risk values ​​for obtaining a target risk difference, and the target risk difference value refers to the first risk difference value greater than the preset difference among the multiple risk differences obtained by subtracting in the sorting direction.

[0113] The risk difference is used to characterize the difference in probability of fire occurring in the location areas corresponding to two adjacent fire risk values. The preset difference can be set according to experience.

[0114] In a specific implementation, when it is determined that all risk differences are less than or equal to a preset difference, it indicates that the probability difference of fire occurrence in multiple position areas is small. At this time, the position areas corresponding to the first number of fire risk values ​​ranked at the top in the fire risk sequence can be determined as the assembly positions, and the first number of position areas with relatively high probability of fire occurrence in all position areas can be determined as the assembly positions. Exemplarily, if the first number is 5, the position areas corresponding to the 5 fire risk values ​​ranked up to 5 in the fire risk sequence are determined as the assembly positions.

[0115] In a specific implementation, when it is determined that there are risk differences that are greater than the preset difference, it indicates that there is a cliff-like difference in the probability of fire occurring in multiple location areas, that is, it indicates that the probability of fire occurring in some location areas among the multiple location areas is very high, and the probability of fire occurring in some location areas is very low. At this time, if only one risk difference is greater than the preset difference, the number of all fire risk values ​​that are ranked before the smaller of the two fire risk values ​​for obtaining the risk difference is determined as the second number. If at least two risk differences are greater than the preset difference, the first risk difference that is greater than the preset difference among the multiple risk differences obtained by subtracting in the sorting direction can be determined as the target risk difference, and the number of all fire risk values ​​that are ranked before the smaller of the two fire risk values ​​for obtaining the target risk difference is determined as the second number.

[0116] Specifically, after determining the second number, the second number and the first number can be compared. If the second number is greater than the first number, the position area corresponding to the first number of fire risk values ​​ranked higher in the fire risk sequence is determined as the assembly position of the battery pack. If the second number is less than the first number, the second number of position areas and the third number of position areas adjacent to the second number of position areas are determined as assembly positions, thereby increasing the amount of fire extinguishing agent released to the battery pack in the adjacent area and improving the fire extinguishing effect. Specifically, the method for determining the number of position areas in the third number of position areas that are adjacent to each position area in the second number of position areas can refer to the above-mentioned method for determining the assembly quantity corresponding to each battery pack, wherein the second number can be analogous to the above-mentioned number of battery packs, and the third number can be analogous to the above-mentioned number of nozzle switches, and the specific process will not be further described here.

[0117] Specifically, when determining the risk difference between two adjacent fire risk values ​​in the first number of fire risk values, the risk difference between all two adjacent fire risk values ​​can be obtained synchronously. Alternatively, the risk difference between two adjacent fire risk values ​​can be obtained in accordance with the sorting direction of the fire risk sequence, so as to reduce the data processing amount of the electronic device, reduce the operating pressure of the electronic device, and improve the accuracy of determining the second number.

[0118] It can be seen that in this example, due to the differences in temperature of different position areas corresponding to the battery pack, the assembly position of the battery pack can be designed with differentiated distribution. When all risk differences are less than or equal to the preset difference, the position areas corresponding to the first number of fire risk values ​​ranked in the fire risk sequence are determined as assembly positions; when there is at least one risk difference greater than the preset difference, the second number of position areas ranked in the front and the third number of position areas adjacent to the position area are determined as assembly positions, which is conducive to realizing differentiated risk prevention and control design for battery packs and improving the effect of the nozzle switch on fire risk prevention and control of battery packs.

[0119] In one possible example, determining the assembly strategy based on the fire risk sequence and the assembly quantity also includes: performing the following steps for each of the assembly positions: determining a heat-bearing threshold corresponding to the electronic device at the assembly position; determining a preset temperature of a nozzle switch assembled corresponding to the assembly position based on the heat-bearing threshold, so as to activate the nozzle switch assembled corresponding to the assembly position to control the release of the fire extinguishing agent when the real-time ambient temperature corresponding to the assembly position reaches a preset temperature, and the preset temperature is less than or equal to the heat-bearing threshold.

[0120] The preset temperature is used to characterize the temperature at which the sprinkler switch is activated to release the fire extinguishing agent. For example, the preset temperature can be used to characterize the maximum temperature that the temperature sensing element in the sprinkler switch can withstand.

[0121] In a specific implementation, the heat bearing threshold corresponding to each assembly position can be determined as the preset temperature corresponding to the assembly position, so that the nozzle switch can be immediately activated when a fire occurs at the assembly position to release the fire extinguishing agent to extinguish the fire, thereby improving the timeliness of fire risk prevention and control. Alternatively, a temperature lower than the preset difference value of the heat bearing threshold corresponding to each assembly position can be determined as the preset temperature corresponding to the assembly position, so that the preset temperature is less than the heat bearing threshold, so that the fire extinguishing agent is released to extinguish the fire and cool down when a fire is about to occur, thereby reducing the risk of damage to electronic devices. Among them, the preset difference value can be set according to demand or experience.

[0122] It can be seen that in this example, due to the differences in temperature of different position areas corresponding to the battery pack, the preset temperature of the sprinkler switch is designed differently for different assembly positions, which can respond to fires occurring in different assembly positions in a targeted manner and prevent and control them, thereby improving the targetedness and accuracy of fire risk prevention and control.

[0123] In one possible example, when it is determined that the assembly quantity is multiple, the determining of the assembly strategy based on the fire risk sequence and the assembly quantity also includes: determining other assembly positions within a first distance from the target assembly position; determining a second distance between the target assembly position and each of the other assembly positions; determining an activation temperature of a target nozzle switch of the assembly corresponding to the target assembly position based on the second distance and a heat-bearing threshold corresponding to the other assembly positions, so as to activate the target nozzle switch of the assembly corresponding to the target assembly position to control the release of the fire extinguishing agent when the real-time ambient temperature corresponding to the other assembly positions reaches the heat-bearing threshold and the real-time ambient temperature corresponding to the target assembly position reaches the activation temperature.

[0124] The target assembly position is any one of the multiple assembly positions of a single battery pack, and the activation temperature is less than or equal to the maximum temperature that the temperature sensing component of the nozzle switch assembled at the target assembly position can withstand.

[0125] In this example, the nozzle switch may be an electrically controlled switch. Alternatively, the nozzle switch may include two starting modes: self-sensing start of the temperature sensing element or electrically controlled start.

[0126] In a specific implementation, the assembly strategy determined by the electronic device may also include activation measures for the nozzle switch. Take a single battery pack as an example. When determining the activation measures for the nozzle switch assembled for a single battery pack. The following steps can be performed for the target assembly position: first, the assembly position whose distance from the target assembly position is less than or equal to the first distance is determined as the other assembly position. When the number of other assembly positions is greater than one, the second distance between each other assembly position and the target assembly position can be determined, so as to determine the activation temperature of the nozzle switch assembled at the target assembly position according to each other assembly position and the second distance corresponding to the target assembly position. In actual applications, if the real-time ambient temperature corresponding to the other assembly position reaches its corresponding heat bearing threshold, and the real-time ambient temperature corresponding to the target assembly position reaches the activation temperature corresponding to the other assembly position, the energy storage system can control the start of the nozzle switch to connect the air guide channel and the release port of the nozzle switch, thereby releasing the fire extinguishing agent to extinguish the battery pack.

[0127] Specifically, when determining the activation temperature corresponding to the target assembly position and a single other assembly position, the distance-temperature relationship table can be queried based on the second distance between the target assembly position and the other assembly position to obtain a preselected temperature associated with the second distance, and then the preselected temperature is compared with the maximum temperature that the temperature sensing component can withstand. If the preselected temperature is less than or equal to the maximum temperature that the temperature sensing component can withstand, the preselected temperature is determined as the activation temperature of the target assembly position corresponding to the other assembly position.

[0128] It can be seen that in this example, by determining other assembly positions within a first distance from the target assembly position; and then determining a second distance between the target assembly position and each of the other assembly positions; and determining the activation temperature of the target nozzle switch corresponding to the target assembly position according to the second distance corresponding to the other assembly positions and the heat-bearing threshold, when a fire occurs at a position of the battery pack, the nozzle switch corresponding to the position and the nozzle switch adjacent to the position can be enabled to extinguish the fire at the same time, so as to increase the unit dose of the fire extinguishing agent released for the fire, thereby improving the accuracy of fire risk prevention and control while improving the reliability of fire risk prevention and control.

[0129] The electronic device 70 in the present application may be structured as follows: Fig.11 As shown, the electronic device 70 may be an autonomous mobile device or a server, and the autonomous mobile device or the server is used to execute the above method. Specifically, the electronic device 70 may include a processor 710, a memory 720, a communication interface 730, and one or more programs 721, wherein the one or more programs 721 are stored in the above memory 720 and are configured to be executed by the above processor 710, and the one or more programs 721 include instructions for executing any step in the above method embodiment.

[0130] Among them, the communication interface 730 is used to support the communication between the electronic device 70 and other devices. The processor 710 can be, for example, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, units and circuits described in conjunction with the disclosure of the embodiments of the present application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0131] The memory 720 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the nonvolatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch Link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).

[0132] In a specific implementation, the processor 710 is used to execute any step in the above method embodiment, and when performing data transmission such as sending, the communication interface 730 can be selectively called to complete the corresponding operation.

[0133] It should be noted that the structural diagram of the above-mentioned electronic device 70 is only an example, and the specific components included may be more or less, and no sole limitation is made here.

[0134] The present application can divide the functional units of the electronic device according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0135] Fig.12 This is a functional unit block diagram of a first risk prevention and control device for a battery pack provided in an embodiment of the present application. The first risk prevention and control device 80 for a battery pack includes:

[0136] The acquisition unit 810 is used to acquire the number of battery packs and the number of nozzle switches of the fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with a plurality of the battery packs, the fire extinguishing assembly includes a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe includes a main pipe and a plurality of branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the plurality of branch pipes is connected to the main pipe; the nozzle switches are provided in plurality, the plurality of nozzle switches are respectively connected to one end of a branch pipe away from the main pipe, and are integrated into the battery pack, and the nozzle switch is activated when the real-time ambient temperature reaches a preset temperature to control the release of the fire extinguishing agent;

[0137] A first determining unit 820 is used to determine the assembly quantity of the target nozzle switches to be assembled with the target battery pack according to the quantity of the battery packs and the quantity of the nozzle switches, wherein the target battery pack is one of the plurality of battery packs, and the target nozzle switch is at least one of the plurality of nozzle switches;

[0138] A second determining unit 830, configured to determine a plurality of fire risk values ​​corresponding to a plurality of location areas of the target battery pack;

[0139] A sorting unit 840 is used to sort the multiple fire risk values ​​from high to low to obtain a fire risk sequence;

[0140] The third determining unit 850 is used to determine an assembly strategy according to the fire risk sequence and the assembly quantity, wherein the assembly strategy includes an assembly position of the target battery pack for assembling the target nozzle switch.

[0141] In one possible example, in terms of determining multiple fire risk values ​​corresponding to multiple position areas of the target battery pack, the second determination unit is specifically used to: perform the following steps for each of the multiple position areas: obtain product attribute information and operation information of an electronic device assembled in a single position area, the product attribute information being used to indicate a heat bearing threshold of the electronic device, and the operation information being used to indicate a unit heat energy generated by the electronic device per unit time; determine a first risk value of the electronic device based on the product attribute information; determine a second risk value of the electronic device based on the operation information; and determine the fire risk value corresponding to the position area based on the first risk value and the second risk value.

[0142] In one possible example, in determining the first risk value of the electronic device according to the product attribute information; and determining the second risk value of the electronic device according to the operation information; the second determination unit is specifically used to: obtain a first relationship correspondence table and a second relationship correspondence table; the first relationship correspondence table is used to characterize the association between the heat-bearing threshold and the first risk value, and the second relationship correspondence table is used to characterize the association between the unit thermal energy and the second risk value; query the first relationship correspondence table according to the heat-bearing threshold to determine the first risk value; query the second relationship correspondence table according to the unit thermal energy to determine the second risk value.

[0143] In one possible example, in terms of determining the assembly strategy based on the fire risk sequence and the assembly quantity, the third determination unit is specifically used to: when it is determined that the assembly quantity is one, determine the position area corresponding to the fire risk value ranked most forward in the fire risk sequence as the assembly position; when it is determined that the assembly quantity is multiple, determine the assembly number of assembly positions according to the fire risk sequence.

[0144] In one possible example, when it is determined that the assembly quantity is multiple, in terms of determining the assembly quantity and assembly positions according to the fire risk sequence, the second determination unit is specifically used to: obtain a first number of the fire risk values ​​ranked first in the fire risk sequence, the first number being the assembly quantity; determine the risk difference between two adjacent fire risk values ​​in the first number of the fire risk values; compare each of the risk differences with a preset difference; if all of the risk differences are less than or equal to the preset difference, then compare the first number of the fire risk values ​​ranked first in the fire risk sequence with the preset difference. The corresponding position area is determined as the assembly position; if there is at least one risk difference value greater than the preset difference value, a second number of position areas with a higher ranking and a third number of position areas adjacent to the position area are determined as the assembly positions, the sum of the second number and the third number is the assembly number, the second number is the number of all fire risk values ​​ranked before the smaller fire risk value among the two fire risk values ​​for obtaining the target risk difference, and the target risk difference value refers to the first risk difference value greater than the preset difference among the multiple risk difference values ​​obtained by subtracting in the sorting direction.

[0145] In one possible example, in terms of determining the assembly strategy based on the fire risk sequence and the assembly quantity, the second determination unit is specifically further used to: perform the following steps for each of the assembly positions: determine the heat-bearing threshold corresponding to the electronic device at the assembly position; determine the preset temperature of the nozzle switch assembled corresponding to the assembly position according to the heat-bearing threshold, so as to activate the nozzle switch assembled corresponding to the assembly position to control the release of the fire extinguishing agent when the real-time ambient temperature corresponding to the assembly position reaches the preset temperature, and the preset temperature is less than or equal to the heat-bearing threshold.

[0146] In one possible example, in terms of determining the assembly strategy according to the fire risk sequence and the assembly quantity, the second determination unit is further specifically used to: determine other assembly positions within a first distance from the target assembly position; determine a second distance between the target assembly position and each of the other assembly positions; determine an activation temperature of a target nozzle switch assembled corresponding to the target assembly position according to the second distance and a heat-bearing threshold corresponding to the other assembly positions, so as to activate the target nozzle switch assembled corresponding to the target assembly position to control the release of the fire extinguishing agent when the real-time ambient temperature corresponding to the other assembly positions reaches the heat-bearing threshold and the real-time ambient temperature corresponding to the target assembly position reaches the activation temperature.

[0147] In the case of using an integrated unit, the functional unit composition block diagram of the second risk prevention and control device for a battery pack provided in an embodiment of the present application is as follows: Fig.13 As shown. Fig.13 In the embodiment, the second risk prevention and control device 90 for battery packs includes: a processing module 920 and a communication module 910. The processing module 920 is used to control and manage the actions of the first risk prevention and control device for battery packs, for example, the steps performed by the acquisition unit 810, the first determination unit 820, the second determination unit 830, the sorting unit 840 and the third determination unit 850, and / or other processes for performing the technology described herein. The communication module 910 is used to support the interaction between the second risk prevention and control device 90 for battery packs and other devices. Fig.13 As shown, the second risk prevention and control device 90 for the battery pack may further include a storage module 930, and the storage module 930 is used to store the program code and data of the second risk prevention and control device 90 for the battery pack.

[0148] Among them, the processing module 920 can be a processor or a controller, for example, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the embodiments of the present application. The processor can also be a combination that implements a computing function, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 910 can be a transceiver, an RF circuit or a communication interface, etc. The storage module 930 can be a memory.

[0149] Among them, all relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here. The above first risk prevention and control device for battery packs or the second risk prevention and control device for battery packs can both execute the above Fig.10 The steps shown are performed by the electronic device in the risk prevention and control method for the battery pack.

[0150] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps of any method recorded in the above method embodiments, and the above computer includes a server.

[0151] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0152] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0153] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0154] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0155] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0156] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the above-mentioned methods of each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk, etc., and other media that can store program codes.

[0157] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the relevant hardware through a program, and the program may be stored in a computer-readable memory, which may include a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0158] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A risk prevention and control method for a battery pack, characterized in that: Applied to electronic equipment, the method comprises: Obtain the number of battery packs and the number of nozzle switches of the fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with a plurality of the battery packs, the fire extinguishing assembly includes a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe includes a main pipe and a plurality of branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the plurality of branch pipes is connected to the main pipe; the air pressure in the space connected to the fire extinguishing agent storage container and the guide pipe is higher than the ambient air pressure, a plurality of nozzle switches are provided, the plurality of nozzle switches are connected to the ends of the plurality of branch pipes away from the main pipe in a one-to-one correspondence, and are integrated into the battery pack, and the nozzle switch is activated when the real-time ambient temperature reaches a preset temperature to control the release of the fire extinguishing agent; Determine the assembly quantity of the target nozzle switch for the target battery pack according to the quantity of the battery packs and the quantity of the nozzle switches, wherein the target battery pack is one of the plurality of battery packs, and the target nozzle switches are a plurality; Determine a plurality of fire risk values ​​corresponding to a plurality of location areas of the target battery pack; wherein the fire risk values ​​of different location areas are associated with the heat bearing threshold of the electronic device in the location area and the unit heat energy generated when the electronic device is in operation; Arrange the multiple fire risk values ​​in descending order to obtain a fire risk sequence; Determine an assembly strategy according to the fire risk sequence and the assembly quantity, the assembly strategy including the assembly position of the target battery pack for assembling the target nozzle switch; the step of determining the assembly position includes: obtaining the first number of the fire risk values ​​ranked at the top in the fire risk sequence, the first number being the assembly quantity; determining the risk difference between two adjacent fire risk values ​​in the first number of the fire risk values; comparing each of the risk differences with a preset difference; if all of the risk differences are less than or equal to the preset difference, then arranging the first number of the fire risk values ​​ranked at the top in the fire risk sequence; comparing the first number of the fire risk values ​​ranked at the top with the preset difference ... The position area corresponding to the fire risk value is determined as the assembly position; if there is at least one risk difference value greater than the preset difference value, a second number of position areas with a higher ranking and a third number of position areas adjacent to the position area are determined as the assembly positions, the sum of the second number and the third number is the assembly number, the second number is the number of all fire risk values ​​ranked before the smaller fire risk value among the two fire risk values ​​for obtaining the target risk difference, and the target risk difference value refers to the first risk difference value greater than the preset difference among the multiple risk difference values ​​obtained by subtracting in the sorting direction.

2. The method according to claim 1, characterized in that The determining of multiple fire risk values ​​corresponding to multiple location areas of the target battery pack includes: For each location area in the plurality of location areas, the following steps are performed respectively: Acquire product attribute information and operation information of a single electronic device assembled in the location area, wherein the product attribute information is used to indicate a heat bearing threshold of the electronic device, and the operation information is used to indicate a unit heat energy generated by the electronic device per unit time; determining a first risk value of the electronic device according to the product attribute information; determining a second risk value of the electronic device according to the operation information; The fire risk value corresponding to the location area is determined according to the first risk value and the second risk value.

3. The method according to claim 2, characterized in that determining a first risk value of the electronic device according to the product attribute information; Determining a second risk value of the electronic device according to the operation information; comprising: Obtain a first relationship correspondence table and a second relationship correspondence table; the first relationship correspondence table is used to characterize the association between the heat bearing threshold and the first risk value, and the second relationship correspondence table is used to characterize the association between the unit thermal energy and the second risk value; According to the heat bearing threshold, query the first relationship correspondence table to determine the first risk value; The second relationship correspondence table is queried according to the unit thermal energy to determine the second risk value.

4. The method according to claim 1, characterized in that The determining of the assembly strategy according to the fire risk sequence and the assembly quantity includes: For each of the described assembly locations, perform the following steps: Determine a heat-bearing threshold corresponding to the electronic device at the assembly position; The preset temperature of the nozzle switch assembled at the assembly position is determined according to the heat-bearing threshold value, so that the nozzle switch assembled at the assembly position is activated to control the release of the fire extinguishing agent when the real-time ambient temperature corresponding to the assembly position reaches the preset temperature, and the preset temperature is less than or equal to the heat-bearing threshold value.

5. The method according to claim 1, characterized in that The determining of the assembly strategy according to the fire risk sequence and the assembly quantity further includes: Determining other assembly positions within a first distance from the target assembly position; determining a second distance between the target assembly position and each of the other assembly positions; The activation temperature of the target nozzle switch assembled corresponding to the target assembly position is determined according to the second distance and the heat-bearing threshold corresponding to the other assembly position, so that when the real-time ambient temperature corresponding to the other assembly position reaches the heat-bearing threshold and the real-time ambient temperature corresponding to the target assembly position reaches the activation temperature, the target nozzle switch assembled corresponding to the target assembly position is activated to control the release of the fire extinguishing agent.

6. A risk prevention and control device for a battery pack, characterized in that: Applied to electronic equipment, the risk prevention and control device for the battery pack includes: an acquisition unit, for acquiring the number of battery packs and the number of nozzle switches of a fire extinguishing assembly; wherein the battery pack is mounted on a rack, the rack is equipped with a plurality of the battery packs, the fire extinguishing assembly comprises a fire extinguishing agent storage container, a guide pipe and a nozzle switch, the guide pipe comprises a main pipe and a plurality of branch pipes, one end of the main pipe is connected to the fire extinguishing agent storage container, and one end of each of the plurality of branch pipes is connected to the main pipe; the air pressure in the space connected to the fire extinguishing agent storage container and the guide pipe is higher than the ambient air pressure, a plurality of nozzle switches are provided, the plurality of nozzle switches are connected to the ends of the plurality of branch pipes away from the main pipe in a one-to-one correspondence, and are integrated into the battery pack, and the nozzle switch is activated when the real-time ambient temperature reaches a preset temperature to control the release of the fire extinguishing agent; A first determining unit is used to determine the assembly quantity of the target nozzle switch to be assembled with the target battery pack according to the quantity of the battery packs and the quantity of the nozzle switches, wherein the target battery pack is one of the plurality of battery packs and the target nozzle switches are a plurality; A second determination unit is used to determine a plurality of fire risk values ​​corresponding to a plurality of location areas of the target battery pack; wherein the fire risk values ​​of different location areas are associated with the heat bearing threshold of the electronic device in the location area and the unit heat energy generated when the electronic device is in operation; A sorting unit, used to sort the multiple fire risk values ​​from high to low to obtain a fire risk sequence; The third determination unit is used to determine an assembly strategy according to the fire risk sequence and the assembly quantity, wherein the assembly strategy includes an assembly position of the target battery pack for assembling the target nozzle switch; the step of determining the assembly position includes: obtaining a first number of the fire risk values ​​ranked at the top in the fire risk sequence, wherein the first number is the assembly quantity; determining a risk difference between two adjacent fire risk values ​​in the first number of the fire risk values; comparing each of the risk differences with a preset difference; if all of the risk differences are less than or equal to the preset difference, then comparing the first number of the fire risk values ​​ranked at the top in the fire risk sequence with the preset difference; The position areas corresponding to a number of fire risk values ​​are determined as assembly positions; if there is at least one risk difference value greater than the preset difference value, a second number of position areas with a higher ranking and a third number of position areas adjacent to the position area are determined as the assembly positions, the sum of the second number and the third number is the assembly number, the second number is the number of all fire risk values ​​ranked before the smaller fire risk value among the two fire risk values ​​for obtaining the target risk difference, and the target risk difference value refers to the first risk difference value greater than the preset difference among the multiple risk difference values ​​obtained by subtracting in the sorting direction.

7. An electronic device, characterized in that: The method comprises a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: A computer program for electronic data exchange is stored, wherein the computer program enables a computer to execute the steps in the method according to any one of claims 1 to 5.

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