A battery pack abnormality processing system and control method thereof

Abstract

The present application relates to the technical field of energy storage battery packs, and discloses a processing system based on battery pack anomalies and its control method. The system includes a battery storage cabinet, a control unit, a detection unit, and an anomaly processing unit, and the control unit is connected to the detection unit and the anomaly processing unit respectively; the battery storage cabinet includes a plurality of battery storage compartments, each of which stores an energy storage battery pack, and each energy storage battery pack is electrically connected to the control unit, and the bottom surface of the battery storage compartment is not perpendicular to the side surface of the battery storage cabinet; the detection unit and the anomaly processing unit are arranged in each of the battery storage compartments; each of the battery storage compartments is provided with an openable and closable door, and each of the openable and closable door is connected to the control unit. The present application can prevent the battery cells of the energy storage battery pack from being more seriously damaged, and at the same time avoid more serious safety risks of fire or even explosion.

Description

Technical Field

[0001] This application relates to the field of energy storage battery pack technology, and in particular to a battery pack anomaly handling system and control method. Background Technology

[0002] When battery cells leave the factory, their performance parameters can only be guaranteed to be basically consistent, not completely consistent. As the number of charge and discharge cycles increases, the differences in performance parameters will gradually increase, which can easily lead to dangerous situations such as temperature control imbalances. Although existing technologies use cooling methods such as air conditioning to control the temperature of battery cells, when the performance parameters of the cells differ too much, individual cells can easily overheat and catch fire during the charging and discharging process.

[0003] Due to the high energy density of certain battery cells, such as lithium-ion cells, and the difficulty in extinguishing fires after they catch fire, existing cooling technologies are simply insufficient to address the safety issues of high temperatures or even fires in battery packs once a fire occurs. In some enclosed storage cabinets, where pressure cannot be effectively released, there is even a risk of explosion under extreme conditions. Summary of the Invention

[0004] This application provides a battery pack anomaly handling system and control method to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0006] According to one aspect of the embodiments of this application, a battery pack anomaly handling system is provided, including a battery storage cabinet, a control unit, a detection unit, and an anomaly handling unit. The control unit is connected to the detection unit and the anomaly handling unit respectively. The battery storage cabinet includes multiple battery storage compartments, each of which stores an energy storage battery pack. Each energy storage battery pack is electrically connected to the control unit, and the bottom surface of each battery storage compartment is not perpendicular to the side surface of the battery storage cabinet. The detection unit and the anomaly handling unit are disposed in each of the battery storage compartments. Each battery storage compartment is provided with an openable and closable door, and each openable and closable door is connected to the control unit.

[0007] When the detection unit detects that any of the battery storage compartments is in a first preset abnormal state, the control unit controls the energy storage battery pack in the battery storage compartment in the first preset abnormal state to be powered off, and controls the abnormal processing unit to perform a first warning process.

[0008] When the detection unit detects that any of the battery storage compartments is in a second preset abnormal state, the control unit controls the openable and closable door of the battery storage compartment in the second preset abnormal state to open, and controls the abnormal handling unit to perform a second warning process to eject the energy storage battery pack in the battery storage compartment in the second preset abnormal state to the outside of the battery storage compartment.

[0009] In one embodiment of this application, based on the aforementioned scheme, the detection unit includes multiple temperature sensors and multiple smoke sensors, which are respectively disposed in each of the battery storage compartments; the temperature sensors and the smoke sensors are used to detect the temperature value and smoke concentration value in the battery storage compartment, respectively; the first preset abnormal state is used to characterize that the temperature value in the battery storage compartment is higher than a first preset temperature threshold and / or the smoke concentration value in the battery storage compartment is higher than a first preset concentration value.

[0010] In one embodiment of this application, based on the aforementioned scheme, the anomaly handling unit includes multiple elastic elements and multiple gas-liquid output devices; the multiple gas-liquid output devices are respectively disposed in each of the battery storage compartments, and each of the gas-liquid output devices is electrically connected to the control unit; the multiple elastic elements are respectively disposed in each of the battery storage compartments, and the elastic elements are used to provide thrust to the energy storage battery pack when the openable door is opened, so that the energy storage battery pack is ejected from the battery storage compartment.

[0011] In one embodiment of this application, based on the aforementioned scheme, the anomaly handling unit further includes multiple support beam devices, multiple locking mechanisms, and multiple pulley devices. Each battery storage compartment is provided with the support beam device, the locking mechanism, and the pulley device. The support beam device is located on the bottom surface of the battery storage compartment. The locking mechanism is vertically mounted on the support beam device and can move vertically within the support beam device. The locking mechanism is used to lock the energy storage battery pack when the battery storage compartment is in a normal state and to release the energy storage battery pack when the battery storage compartment is in a second preset abnormal state. The pulley device is embedded in the support beam device and abuts against the lower surface of the energy storage battery pack.

[0012] In one embodiment of this application, based on the aforementioned scheme, the second preset abnormal state is used to characterize that the temperature value inside the battery storage compartment is higher than a second preset temperature threshold and the smoke concentration value inside the battery storage compartment is higher than a second preset concentration value; when the battery storage compartment is in the second preset abnormal state, the control unit controls the locking mechanism to descend and controls the openable door to open to release the energy storage battery pack, and controls the elastic element to release so that the elastic element provides thrust, causing the energy storage battery pack to be ejected outside the battery storage compartment; wherein, the second preset temperature threshold is greater than the first preset temperature threshold, and the second preset concentration value is greater than the first preset concentration value.

[0013] In one embodiment of this application, based on the aforementioned scheme, the anomaly handling unit further includes an alarm, which is located on the outer top of the battery storage cabinet and electrically connected to the control unit; wherein, when the battery storage compartment is in the first preset abnormal state or the second preset abnormal state, the control unit controls the alarm to sound an alarm.

[0014] In one embodiment of this application, based on the aforementioned scheme, the first early warning process is that the control unit controls the gas-liquid output device in the battery storage compartment under the first preset abnormal state to output aerosol and / or perfluoroethyl ketone fire extinguishing agent, and controls the alarm to sound an alarm; the second early warning process is that the control unit controls the elastic element in the battery storage compartment under the second preset abnormal state to release and controls the alarm to sound an alarm, and controls the locking mechanism to descend to release the energy storage battery pack, so that the energy storage battery pack is ejected from the battery storage compartment under the thrust provided by the elastic element.

[0015] According to one aspect of the embodiments of this application, a control method for a battery pack anomaly-based processing system is provided, applied to the battery pack anomaly-based processing system described in the above embodiments, the method being executed in the control unit described in the above embodiments, the method comprising:

[0016] Acquire temperature and smoke concentration data collected by the detection unit;

[0017] Based on the temperature data and the smoke concentration data, determine whether any battery storage compartment in the battery storage cabinet is in a first preset abnormal state or a second preset abnormal state.

[0018] If the target battery storage compartment is in the first preset abnormal state, the power to the energy storage battery pack in the target battery storage compartment is cut off, and the abnormal handling unit is controlled to perform the first warning processing.

[0019] If the target battery storage compartment is in the second preset abnormal state, the openable and closable door of the target battery storage compartment is opened, and the abnormality handling unit is controlled to perform a second early warning process to eject the energy storage battery pack in the target battery storage compartment to the outside of the battery storage compartment.

[0020] In one embodiment of this application, based on the foregoing scheme, determining whether any battery storage compartment in the battery storage cabinet is in a first preset abnormal state or a second preset abnormal state based on the temperature data and the smoke concentration data includes:

[0021] The temperature values ​​of each battery storage compartment inside the battery storage cabinet are obtained based on the temperature data, and the smoke concentration values ​​of each battery storage compartment are obtained based on the smoke concentration data.

[0022] If any of the temperature values ​​is greater than the first preset temperature threshold and / or any of the smoke concentration values ​​is greater than the first preset concentration threshold, then the target battery storage compartment with the temperature value greater than the first preset temperature threshold is determined to be in the first preset abnormal state and / or the target battery storage compartment with the smoke concentration value greater than the first preset concentration threshold is determined to be in the first preset abnormal state.

[0023] If the temperature value of the target battery storage compartment is greater than the second preset temperature threshold and the smoke concentration value is greater than the second preset concentration threshold, then the target battery storage compartment is determined to be in the second preset abnormal state.

[0024] Wherein, the second preset temperature threshold is greater than the first preset temperature threshold, and the second preset concentration value is greater than the first preset concentration value.

[0025] In one embodiment of this application, based on the aforementioned scheme, the first early warning process is to control the gas-liquid output device in the target battery storage compartment under the first preset abnormal state to output aerosol and / or perfluoroethyl ketone fire extinguishing agent and perform an alarm operation; the second early warning process is to control the elastic element in the target battery storage compartment under the second preset abnormal state to release and perform an alarm operation, and control the locking mechanism to descend to release the energy storage battery pack, so that the energy storage battery pack is ejected from the battery storage compartment under the thrust provided by the elastic element.

[0026] The beneficial effects of this application are as follows: since the bottom surface of the battery storage compartment is not perpendicular to the side surface of the battery storage cabinet, it indicates that the energy storage battery pack in the battery storage compartment has a certain tilt angle when placed. When the openable door is opened, the gravity component due to the tilt angle can cause the energy storage battery pack in the battery storage compartment to slide out of the battery storage compartment. In this way, under the second preset abnormal state of high battery pack temperature and high smoke concentration, the energy storage battery pack in the battery storage compartment can be ejected out of the battery storage compartment, so as to perform a good pressure relief operation and prevent large-scale fire. At the same time, it avoids the serious damage to the battery cells of the energy storage battery pack caused by continuous high temperature or fire.

[0027] Furthermore, when the detection unit detects that any of the battery storage compartments is in a first preset abnormal state, the control unit can control the power supply to the energy storage battery pack in the battery storage compartment in the first preset abnormal state, and control the abnormality handling unit to perform a first warning process. That is to say, the first preset abnormal state is a situation where the temperature and smoke concentration are slightly abnormal. At this time, measures such as power supply and the first warning process can be used to suppress the situation, thereby determining whether the current first preset abnormal state can be effectively resolved. If the first preset abnormal state cannot be effectively resolved, the situation in the battery storage compartment has changed from the first preset abnormal state to a more serious second preset abnormal state. At this time, the energy storage battery pack in the battery storage compartment is ejected from the battery storage compartment to prevent the battery cells of the energy storage battery pack from being more seriously damaged, and at the same time, more serious safety risks of fire or even explosion can be avoided. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this application, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0029] Figure 1 This is an overall block diagram of a battery pack anomaly-based processing system according to an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the interior of a battery storage cabinet under a second preset abnormal state, as shown in an embodiment of this application.

[0031] Figure 3 This is a perspective view of an energy storage battery pack located inside a battery storage compartment, according to an embodiment of this application.

[0032] Figure 4This is a side view of the energy storage battery pack in contact with the locking mechanism according to an embodiment of this application;

[0033] Figure 5 This is a schematic diagram showing the opening and closing of the door of a single battery storage compartment according to an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the interior of a battery storage cabinet under normal conditions, according to an embodiment of this application.

[0035] Figure 7 This is a flowchart illustrating a control method for a battery pack anomaly handling system according to an embodiment of this application.

[0036] Figure Labels

[0037] 1. Battery storage cabinet; 2. Battery storage compartment; 3. Energy storage battery pack; 4. Openable and closable door; 5. Temperature sensor; 6. Smoke sensor; 7. Elastic element; 8. Gas-liquid output device; 9. Pulley device; 10. Locking mechanism; 11. Alarm; 12. Bolt; 13. Support beam device. Detailed Implementation

[0038] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0039] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0040] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. These functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller node devices.

[0041] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0042] It should be noted that "multiple" in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0043] The following is a detailed description of the battery pack anomaly handling system proposed in the embodiments of this application:

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is a diagram illustrating the overall framework of the battery pack anomaly handling system proposed in this application. Figure 2 This is a side view of the specific structure of the battery pack anomaly handling system proposed in this application. Figure 3 This is a three-dimensional schematic diagram of the energy storage battery pack 3 placed inside the battery storage cabinet 1.

[0045] According to one aspect of the embodiments of this application, a battery pack anomaly handling system is provided, including a battery storage cabinet 1, a control unit, a detection unit, and an anomaly handling unit. The control unit is connected to the detection unit and the anomaly handling unit respectively. The battery storage cabinet 1 includes a plurality of battery storage compartments 2, each battery storage compartment 2 storing an energy storage battery pack 3. Each energy storage battery pack 3 is electrically connected to the control unit, and the bottom surface of the battery storage compartment 2 is not perpendicular to the side surface of the battery storage cabinet 1. The detection unit and the anomaly handling unit are disposed in each of the battery storage compartments 2. Each battery storage compartment 2 is provided with an openable and closable door 4, and each openable and closable door 4 is connected to the control unit.

[0046] When the detection unit detects that any of the battery storage compartments 2 is in a first preset abnormal state, the control unit controls the energy storage battery pack 3 in the battery storage compartment 2 in the first preset abnormal state to be powered off, and controls the abnormal processing unit to perform a first warning process.

[0047] When the detection unit detects that any of the battery storage compartments 2 is in a second preset abnormal state, the control unit controls the openable and closable door 4 of the battery storage compartment 2 in the second preset abnormal state to open, and controls the abnormal handling unit to perform a second warning process to eject the energy storage battery pack 3 in the battery storage compartment 2 in the second preset abnormal state to the outside of the battery storage compartment 2.

[0048] Wherein, the first preset abnormal state is used to indicate that the temperature value inside the battery storage compartment 2 is higher than the first preset temperature threshold or the smoke concentration value inside the battery storage compartment 2 is higher than the first preset concentration value; the second preset abnormal state is used to indicate that the temperature value inside the battery storage compartment 2 is higher than the second preset temperature threshold and the smoke concentration value inside the battery storage compartment 2 is higher than the second preset concentration value.

[0049] Specifically, the first preset temperature threshold and the second preset temperature threshold can be set arbitrarily as needed, but the second preset temperature threshold must be greater than the first preset temperature threshold. For example, the second preset temperature threshold can be set to 100 degrees Celsius, and the first preset temperature threshold can be set to 70 degrees Celsius. Of course, 70 degrees Celsius and 100 degrees Celsius are merely exemplary values, and the specific values ​​of the first preset temperature threshold and the second preset temperature threshold are not limited in this application.

[0050] The fact that the bottom surface of the battery storage compartment 2 is not perpendicular to the side surface of the battery storage cabinet 1 indicates that the energy storage battery pack 3 inside the battery storage compartment 2 is placed at a certain tilt angle. When the openable door 4 is opened, the component of gravity due to the tilt angle can cause the energy storage battery pack 3 inside the battery storage compartment 2 to slide out of the battery storage compartment 2. In this way, under the second preset abnormal state of high battery pack temperature and high smoke concentration, the energy storage battery pack 3 inside the battery storage compartment 2 can be ejected out of the battery storage compartment 2 to perform a good pressure relief operation and prevent large-scale fire. At the same time, it avoids the serious damage to the battery cells of the energy storage battery pack 3 caused by continuous high temperature or fire.

[0051] Furthermore, when the detection unit detects that any of the battery storage compartments 2 is in a first preset abnormal state, the control unit can control the power supply to the energy storage battery pack 3 in the battery storage compartment 2 in the first preset abnormal state, and control the abnormality handling unit to perform a first warning process. That is to say, the first preset abnormal state is a situation where the temperature and smoke concentration are slightly abnormal. At this time, measures such as power supply and the first warning process can be used to suppress the situation, thereby determining whether the current first preset abnormal state can be effectively resolved. If the first preset abnormal state cannot be effectively resolved, the situation in the battery storage compartment 2 has changed from the first preset abnormal state to a more serious second preset abnormal state. At this time, the energy storage battery pack 3 in the battery storage compartment 2 is ejected from the battery storage compartment 2 to prevent the cells of the energy storage battery pack 3 from being more seriously damaged, and at the same time, the safety risks of more serious fire or even explosion can be avoided.

[0052] In one embodiment of this application, the detection unit includes a plurality of temperature sensors 5 and a plurality of smoke sensors 6, which are respectively disposed in each of the battery storage compartments 2; the temperature sensors 5 and the smoke sensors 6 are used to detect the temperature value and the smoke concentration value in the battery storage compartment 2, respectively; the first preset abnormal state is used to indicate that the temperature value in the battery storage compartment 2 is higher than a first preset temperature threshold and / or the smoke concentration value in the battery storage compartment 2 is higher than a first preset concentration value.

[0053] Specifically, each battery storage compartment 2 is equipped with a temperature sensor 5 and a smoke sensor 6. The temperature sensor 5 and smoke sensor 6 can be located on the top of the battery storage compartment 2 or on its side wall, such as... Figure 2 As shown, the temperature sensor 5 and the smoke sensor 6 are located on the top of the battery storage compartment 2 to prevent damage to the temperature sensor 5 and the smoke sensor 6 on the top of the battery storage compartment 2 in the event of a fire.

[0054] In one embodiment of this application, the abnormality handling unit includes a plurality of elastic elements 7 and a plurality of gas-liquid output devices 8; the plurality of gas-liquid output devices 8 are respectively disposed in each of the battery storage compartments 2, and each of the gas-liquid output devices 8 is electrically connected to the control unit; the plurality of elastic elements 7 are respectively disposed in each of the battery storage compartments 2, and the elastic elements 7 are used to provide a thrust to the energy storage battery pack 3 when the openable and closable door 4 is opened, so that the energy storage battery pack 3 is ejected from the battery storage compartment 2.

[0055] Specifically, when it is detected that the battery storage compartment 2 is in a first preset abnormal state due to a temperature value exceeding a first preset temperature threshold or a smoke concentration value exceeding a first preset concentration threshold, it indicates that the battery storage compartment 2 is in a first preset abnormal state. At this time, it can be handled by means of... Figure 2 The gas-liquid output device 8, also known as a gas-liquid delivery pipe, is installed on top of the battery storage compartment 2. It provides cooling or fire suppression by outputting aerosol and / or perfluoroethyl ketone (PFE) extinguishing agent. The gas-liquid output device 8 can place the container holding the aerosol or PFE extinguishing agent outside the battery storage cabinet 1, and extend into each battery storage compartment 2 through multiple gas-liquid delivery pipes.

[0056] It should be noted that, Figure 2 Although it only includes two battery storage compartments 2, this application does not limit the number of battery storage compartments 2. Figure 2 The two battery storage compartments 2 shown are merely an example quantity.

[0057] Furthermore, the elastic element 7 can be specifically a spring. However, when the temperature value inside the battery storage compartment 2 is less than the first preset temperature threshold and the smoke concentration value is less than the first preset concentration threshold, it indicates that the battery storage compartment 2 is in a normal state. At this time, the elastic element 7 (spring) is in a compressed state. When the openable and closable door 4 is opened, the elastic element 7 is released, that is, it is reset from the compressed state to the normal extended state. During this process, it will provide thrust to the energy storage battery pack 3, so that the energy storage battery pack 3 has both thrust and gravity component due to the tilted state. The double force support makes the energy storage battery pack 3 pop out of the battery storage compartment 2 more quickly.

[0058] In one embodiment of this application, the battery pack anomaly handling system further includes a buffer device disposed on the outside of the battery storage cabinet 1 and used to buffer the ejected energy storage battery pack 3 to prevent the energy storage battery pack 3 from being damaged after being ejected.

[0059] For example, the buffer device can be a sandpit. After being ejected, the energy storage battery pack 3 falls into the sandpit. Due to the buffering effect provided by the sandpit, the energy storage battery pack 3 can minimize the damage it suffers.

[0060] In one embodiment of this application, the anomaly handling unit further includes multiple support beam devices 13, multiple locking mechanisms 10, and multiple pulley devices 9. Each battery storage compartment 2 is provided with the support beam device 13, the locking mechanism 10, and the pulley device 9. The support beam device 13 is located on the bottom surface of the battery storage compartment 2. The locking mechanism 10 is vertically mounted on the support beam device 13 and can move vertically within the support beam device 13. The locking mechanism 10 is used to lock the energy storage battery pack 3 when the battery storage compartment 2 is in a normal state and to release the energy storage battery pack 3 when the battery storage compartment 2 is in the second preset abnormal state. The pulley device 9 is embedded in the support beam device 13 and abuts against the lower surface of the energy storage battery pack 3.

[0061] Specifically, refer to Figure 2 , Figure 3 and Figure 6 As shown, the locking mechanism 10 and the pulley device 9 are mounted on the support beam device 13 of the battery storage compartment 2. The locking mechanism 10 can be composed of multiple pins 12, each pin 12 being spaced apart and embedded in the support beam device 13, and each pin 12 being connected to a motor. The pulley device 9 can specifically be a bearing, with the lower half of each pulley device 9 embedded in the support beam device 13. The control unit can control the raising and lowering of each pin 12 by controlling the motor. Under normal conditions, such as Figure 3 As shown, each pin 12 is connected to the side shell of the energy storage battery pack 3 to lock the energy storage battery pack 3 in place and prevent the energy storage battery pack 3 from moving due to the pulleys and its own weight.

[0062] Specifically, it can be as follows Figure 4 as well as Figure 5 As shown, Figure 4 This is a side view of the energy storage battery pack 3 and the locking mechanism 10. Both sides of the energy storage battery pack 3 can abut against the locking mechanism 10. It should be noted that each battery storage compartment 2 is equipped with an openable and closable door 4. Figure 5 A schematic diagram showing the opening and closing of the closable door 4 of a single battery storage compartment 2.

[0063] When the battery storage compartment 2 is in the second preset abnormal state, the control unit controls the locking mechanism 10 to descend and controls the corresponding openable door 4 to open, so as to release the energy storage battery pack 3, and controls the elastic member 7 to release, so that the elastic member 7 provides a thrust, so that the energy storage battery pack 3 is ejected from the battery storage compartment 2; wherein, the second preset temperature threshold is greater than the first preset temperature threshold, and the second preset concentration value is greater than the first preset concentration value.

[0064] Specifically, when the battery storage compartment 2 is in the second preset abnormal state, the door 4 of the openable and closable door is opened. At this time, each pin 12 descends, and the energy storage battery pack 3, since it no longer has the locking position of the locking mechanism 10, will be ejected from the battery storage compartment 2 due to the pulley, its own weight, and the thrust provided by the elastic element 7.

[0065] In one embodiment of this application, the anomaly handling unit further includes an alarm 11, which is located on the top outer surface of the battery storage cabinet 1 and electrically connected to the control unit. When the battery storage compartment 2 is in the first preset abnormal state or the second preset abnormal state, the control unit controls the alarm 11 to sound an alarm. It should be noted that the location of the alarm 11 is not limited to the top outer surface of the battery storage cabinet 1; it can also be located on the outer side of the battery storage cabinet 1, the front door of the battery storage cabinet 1, or other locations. The front door of the battery storage cabinet can be a single door, since the closable door 4 of the battery storage compartment 2 is the rear door of the battery storage cabinet. By opening the front door of the battery storage cabinet 1, the ejected energy storage battery pack 3 can be reinstalled into the battery storage compartment 2 and re-locked by the locking mechanism 10.

[0066] Specifically, alarm 11 can be set with one or more, in Figure 2 As shown, the number of alarms 11 is set to one, and it is located on the outer top of the battery storage cabinet 1. An alarm will be triggered regardless of whether the battery storage compartment 2 is in the first preset abnormal state or the second preset abnormal state, so as to deal with the abnormal situation in a timely manner.

[0067] In one embodiment of this application, the second early warning process is that the control unit controls the release of the elastic element 7 in the battery storage compartment 2 which is in the second preset abnormal state and controls the alarm 11 to sound an alarm, and controls the locking mechanism 10 to descend to release the energy storage battery pack 3, so that the energy storage battery pack 3 is ejected from the battery storage compartment 2 under the thrust provided by the elastic element 7.

[0068] Specifically, the control unit can be an EMS (Energy Management System). The battery storage cabinet 1 serves as the carrier of the entire battery pack anomaly handling system. Inside, it also houses a fire suppression system (the aforementioned gas-liquid output device 8) and a thermal management system (air conditioning, etc.), which are not listed here. In case of an anomaly, the fire suppression system and thermal management system can extinguish the fire / cool the battery pack to prevent further escalation. If a more serious situation arises, the energy storage battery pack 3 can be ejected promptly to prevent further damage and mitigate the safety risks of escalating fire or even explosion. It should be noted that the energy storage battery pack 3 is connected to the control unit via an electrical interface, which is not illustrated in the accompanying drawings.

[0069] According to one aspect of the embodiments of this application, a control method for a battery pack anomaly-based processing system is provided, applied to the battery pack anomaly-based processing system described in the above embodiments, wherein the method is executed in the control unit described in the above embodiments. Figure 7 The flowchart below illustrates a control method for a battery pack anomaly-based handling system according to an embodiment of this application. The method includes at least steps S1 to S4, which are described in detail below:

[0070] In step S1, temperature data and smoke concentration data collected by the detection unit are acquired.

[0071] Specifically, temperature data and smoke concentration data can be obtained periodically by the temperature sensor and smoke sensor in the anomaly processing unit. The temperature data can be composed of the temperature values ​​of each battery storage compartment, and the smoke concentration data can be composed of the smoke concentration values ​​of each battery storage compartment.

[0072] In step S2, based on the temperature data and the smoke concentration data, it is determined whether any battery storage compartment in the battery storage cabinet is in a first preset abnormal state or a second preset abnormal state.

[0073] In one embodiment of this application, determining whether any battery storage compartment in the battery storage cabinet is in a first preset abnormal state or a second preset abnormal state based on the temperature data and the smoke concentration data includes:

[0074] The temperature values ​​of each battery storage compartment inside the battery storage cabinet are obtained based on the temperature data, and the smoke concentration values ​​of each battery storage compartment are obtained based on the smoke concentration data.

[0075] If any of the temperature values ​​is greater than the first preset temperature threshold and / or any of the smoke concentration values ​​is greater than the first preset concentration threshold, then the target battery storage compartment with the temperature value greater than the first preset temperature threshold is determined to be in the first preset abnormal state and / or the target battery storage compartment with the smoke concentration value greater than the first preset concentration threshold is determined to be in the first preset abnormal state.

[0076] If the temperature value of the target battery storage compartment is greater than the second preset temperature threshold and the smoke concentration value is greater than the second preset concentration threshold, then the target battery storage compartment is determined to be in the second preset abnormal state.

[0077] Wherein, the second preset temperature threshold is greater than the first preset temperature threshold, and the second preset concentration value is greater than the first preset concentration value.

[0078] Specifically, if the temperature value exceeds the first preset temperature threshold or the smoke concentration value exceeds the first preset concentration threshold, or if the temperature value exceeds the first preset temperature threshold and the smoke concentration value exceeds the first preset concentration threshold, the energy storage battery pack in the battery storage cabinet will stop working, reducing the input and output current of the energy storage battery pack to zero; releasing aerosol or perfluoroacetone fire extinguishing agent to cool / extinguish the energy storage battery pack; and controlling the alarm to sound.

[0079] If the temperature and smoke concentration continue to rise, and the temperature and smoke concentration of the target battery storage compartment exceed the second preset temperature threshold and the second preset concentration threshold, the closable door of the corresponding target battery storage compartment will automatically open, causing the energy storage battery pack to be ejected. It should be noted that the target battery storage compartment refers to a battery storage compartment that is in either the first or second preset abnormal state.

[0080] In step S3, if the target battery storage compartment is in the first preset abnormal state, the energy storage battery pack in the target battery storage compartment is powered off, and the abnormality handling unit is controlled to perform the first early warning processing.

[0081] Specifically, the first early warning process involves controlling the gas-liquid output device in the target battery storage compartment, which is in the first preset abnormal state, to output aerosol and / or perfluoroethyl ketone fire extinguishing agent and to trigger an alarm.

[0082] In step S4, if the target battery storage compartment is in the second preset abnormal state, the openable and closable door of the target battery storage compartment is opened, and the abnormality handling unit is controlled to perform the second early warning process to eject the energy storage battery pack in the target battery storage compartment to the outside of the battery storage compartment.

[0083] Specifically, the second early warning process involves controlling the release of the elastic element inside the target battery storage compartment under the second preset abnormal state and performing an alarm operation, and controlling the locking mechanism to descend to release the energy storage battery pack, so that the energy storage battery pack is ejected from the battery storage compartment under the thrust provided by the elastic element.

[0084] Among them, such as Figure 2 As shown, the angle formed between the bottom surface of the battery storage compartment and the right side surface of the battery storage cabinet is between 60° and 80°, which means the angle between the battery pack and the horizontal plane is between 10° and 30°, or the tilt angle of the battery pack is between 10° and 30°. The front end of the battery pack has plug-in interfaces for electrical and communication, which are fully compatible with the plug-in interfaces on the internal structural components of the battery storage cabinet, thus enabling electrical connection between the control unit and the battery pack. The battery storage cabinet contains multiple battery storage compartments arranged vertically, each equipped with an individual openable and closable door. Each door can be automatically opened by the control unit. Under normal circumstances, the openable and closable doors of the battery storage compartments are kept closed.

[0085] In summary, the fact that the bottom surface of the battery storage compartment is not perpendicular to the side surface of the battery storage cabinet indicates that the energy storage battery pack inside the battery storage compartment is placed at a certain tilt angle. When the closable door is opened, the component of gravity due to the tilt angle causes the energy storage battery pack inside the battery storage compartment to slide out of the battery storage compartment. This allows the energy storage battery pack inside the battery storage compartment to be ejected from the battery storage compartment under the second preset abnormal state of high battery pack temperature and high smoke concentration, thus performing a good pressure relief operation and preventing large-scale fires. At the same time, it avoids the serious damage to the battery cells of the energy storage battery pack caused by continuous high temperature or fire.

[0086] Furthermore, when the detection unit detects that any of the battery storage compartments is in a first preset abnormal state, the control unit can control the power supply to the energy storage battery pack in the battery storage compartment in the first preset abnormal state, and control the abnormality handling unit to perform a first warning process. That is to say, the first preset abnormal state is a situation where the temperature and smoke concentration are slightly abnormal. At this time, measures such as power supply and the first warning process can be used to suppress the situation, thereby determining whether the current first preset abnormal state can be effectively resolved. If the first preset abnormal state cannot be effectively resolved, the situation in the battery storage compartment has changed from the first preset abnormal state to a more serious second preset abnormal state. At this time, the energy storage battery pack in the battery storage compartment is ejected from the battery storage compartment to prevent the battery cells of the energy storage battery pack from being more seriously damaged, and at the same time, more serious safety risks of fire or even explosion can be avoided.

[0087] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of this application, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously in multiple modules.

[0088] It should be understood that this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A processing system based on battery pack anomalies, characterized in that, The system includes a battery storage cabinet, a control unit, a detection unit, and an anomaly handling unit. The control unit is connected to both the detection unit and the anomaly handling unit. The battery storage cabinet includes multiple battery storage compartments, each containing an energy storage battery pack. Each energy storage battery pack is electrically connected to the control unit, and the bottom surface of each battery storage compartment is not perpendicular to the side surface of the battery storage cabinet. The detection unit and the anomaly handling unit are located within each battery storage compartment. Each battery storage compartment is equipped with an openable and closable door, and each openable and closable door is connected to the control unit. When the detection unit detects that any of the battery storage compartments is in a first preset abnormal state, the control unit controls the energy storage battery pack in the battery storage compartment in the first preset abnormal state to be powered off, and controls the abnormal processing unit to perform a first warning process. When the detection unit detects that any of the battery storage compartments is in a second preset abnormal state, the control unit controls the openable and closable door of the battery storage compartment in the second preset abnormal state to open, and controls the abnormal handling unit to perform a second warning process to eject the energy storage battery pack in the battery storage compartment in the second preset abnormal state to the outside of the battery storage compartment. The abnormality handling unit includes an elastic element, a gas-liquid output device, a locking mechanism, and an alarm. The first early warning process is that the control unit controls the gas-liquid output device in the battery storage compartment, which is in the first preset abnormal state, to output aerosol and / or perfluoroethyl ketone fire extinguishing agent, and controls the alarm to sound an alarm. The second early warning process involves the control unit controlling the release of the elastic element in the battery storage compartment under the second preset abnormal state and controlling the alarm to sound an alarm, and controlling the locking mechanism to descend to release the energy storage battery pack, so that the energy storage battery pack is ejected from the battery storage compartment under the thrust provided by the elastic element.

2. The battery pack anomaly handling system according to claim 1, characterized in that, The detection unit includes multiple temperature sensors and multiple smoke sensors, which are respectively located in each of the battery storage compartments. The temperature sensors and smoke sensors are used to detect the temperature value and smoke concentration value in the battery storage compartment, respectively. The first preset abnormal state is used to indicate that the temperature value in the battery storage compartment is higher than a first preset temperature threshold and / or the smoke concentration value in the battery storage compartment is higher than a first preset concentration value.

3. The battery pack anomaly handling system according to claim 2, characterized in that, The number of elastic elements is multiple, and the number of gas-liquid output devices is multiple; the multiple gas-liquid output devices are respectively disposed in each of the battery storage compartments, and each of the gas-liquid output devices is electrically connected to the control unit; the multiple elastic elements are respectively disposed in each of the battery storage compartments, and the elastic elements are used to provide thrust to the energy storage battery pack when the openable door is opened, so that the energy storage battery pack is ejected from the battery storage compartment.

4. The battery pack anomaly handling system according to claim 3, characterized in that, The anomaly handling unit further includes multiple support beam devices and multiple pulley devices. There are multiple locking mechanisms. Each battery storage compartment is equipped with a support beam device, a locking mechanism, and a pulley device. The support beam device is located on the bottom surface of the battery storage compartment. The locking mechanism is vertically mounted on the support beam device and can move vertically within the support beam device. The locking mechanism is used to lock the energy storage battery pack when the battery storage compartment is in a normal state and to release the energy storage battery pack when the battery storage compartment is in a second preset abnormal state. The pulley device is embedded within the support beam device and abuts against the lower surface of the energy storage battery pack.

5. The battery pack anomaly handling system according to claim 4, characterized in that, The second preset abnormal state is used to characterize that the temperature value inside the battery storage compartment is higher than the second preset temperature threshold and the smoke concentration value inside the battery storage compartment is higher than the second preset concentration value; when the battery storage compartment is in the second preset abnormal state, the control unit controls the locking mechanism to descend and controls the openable door to open to release the energy storage battery pack, and controls the elastic element to release so that the elastic element provides thrust, causing the energy storage battery pack to be ejected from the battery storage compartment; wherein, the second preset temperature threshold is greater than the first preset temperature threshold, and the second preset concentration value is greater than the first preset concentration value.

6. The battery pack anomaly handling system according to claim 5, characterized in that, The alarm is located on the outer top of the battery storage cabinet and is electrically connected to the control unit; wherein, when the battery storage compartment is in the first preset abnormal state or the second preset abnormal state, the control unit controls the alarm to sound an alarm.

7. A control method for a battery pack anomaly handling system, characterized in that, Applied to the battery pack anomaly-based processing system according to any one of claims 1-6, the method is executed in the control unit according to any one of claims 1-6, the method comprising: Acquire temperature and smoke concentration data collected by the detection unit; Based on the temperature data and the smoke concentration data, determine whether any battery storage compartment in the battery storage cabinet is in a first preset abnormal state or a second preset abnormal state. If the target battery storage compartment is in the first preset abnormal state, the power to the energy storage battery pack in the target battery storage compartment is cut off, and the abnormal handling unit is controlled to perform the first warning processing. If the target battery storage compartment is in the second preset abnormal state, control the openable and closable door of the target battery storage compartment to open, and control the abnormal handling unit to perform the second early warning process to eject the energy storage battery pack in the target battery storage compartment to the outside of the battery storage compartment. The abnormality handling unit includes an elastic element, a gas-liquid output device, a locking mechanism, and an alarm. The first early warning process involves controlling the gas-liquid output device in the battery storage compartment, which is in the first preset abnormal state, to output aerosol and / or perfluoroethyl ketone fire extinguishing agent, and controlling the alarm to sound an alarm. The second early warning process involves controlling the release of the elastic element in the battery storage compartment when it is in the second preset abnormal state, controlling the alarm to sound, and controlling the locking mechanism to descend to release the energy storage battery pack, so that the energy storage battery pack is ejected from the battery storage compartment under the thrust provided by the elastic element.

8. The control method for the battery pack anomaly handling system according to claim 7, characterized in that, The step of determining whether any battery storage compartment in the battery storage cabinet is in a first preset abnormal state or a second preset abnormal state based on the temperature data and the smoke concentration data includes: The temperature values ​​of each battery storage compartment inside the battery storage cabinet are obtained based on the temperature data, and the smoke concentration values ​​of each battery storage compartment are obtained based on the smoke concentration data. If any of the temperature values ​​is greater than the first preset temperature threshold and / or any of the smoke concentration values ​​is greater than the first preset concentration threshold, then the target battery storage compartment with the temperature value greater than the first preset temperature threshold is determined to be in the first preset abnormal state and / or the target battery storage compartment with the smoke concentration value greater than the first preset concentration threshold is determined to be in the first preset abnormal state. If the temperature value of the target battery storage compartment is greater than the second preset temperature threshold and the smoke concentration value is greater than the second preset concentration threshold, then the target battery storage compartment is determined to be in the second preset abnormal state. Wherein, the second preset temperature threshold is greater than the first preset temperature threshold, and the second preset concentration value is greater than the first preset concentration value.

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