Battery explosion-proof valve opening control method, device, equipment and computer storage medium

Abstract

This application discloses a method, device, equipment, and computer storage medium for controlling the opening of a battery explosion-proof valve, relating to the field of battery explosion-proof valve technology. It is applied to a battery explosion-proof valve opening control device, which includes an environmental data acquisition unit and an opening control module. The device acquires environmental change data collected by the environmental data acquisition unit, including internal temperature change data and opening judgment data of the battery explosion-proof valve. Based on the temperature change data and opening judgment data, an opening control mode is determined, and based on the opening control mode and opening judgment data, an opening control command is determined. This command is then used to control the opening of the opening control module, improving the effectiveness of the battery explosion-proof valve opening control.

Description

Technical Field

[0001] This application relates to the field of battery explosion-proof valve technology, and in particular to a battery explosion-proof valve opening control method, device, equipment, and computer storage medium. Background Technology

[0002] As battery explosion-proof valves are used more and more frequently, users are also putting forward higher requirements for the way the opening of battery explosion-proof valves is controlled.

[0003] Traditional battery explosion-proof valves control their opening size mechanically by adjusting internal pressure. This means the opening size is entirely passively driven by pressure. This method has significant drawbacks, as it relies solely on pressure for control. Consequently, the valve's opening control is ineffective when pressure is insufficient or excessive, resulting in poor overall control.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this application is to provide a method, device, equipment, and computer storage medium for controlling the opening of a battery explosion-proof valve, aiming to solve the technical problem of poor control effect of the opening of the battery explosion-proof valve.

[0006] To achieve the above objectives, this application proposes a battery explosion-proof valve opening control method. This method is applied to a battery explosion-proof valve opening control device, which includes an environmental data acquisition unit and an opening control module. The battery explosion-proof valve opening control method includes: The environmental change data collected by the environmental collector is obtained, wherein the environmental change data includes temperature change data and opening determination data inside the battery explosion-proof valve; An opening control mode is determined based on the temperature change data and the opening judgment data, and an opening control command is determined based on the opening control mode and the opening judgment data, so as to perform opening control on the opening control module based on the opening control command.

[0007] In one embodiment, the step of determining the opening control mode based on the temperature change data and the opening determination data includes: When the temperature change value in the temperature change data is greater than a first preset value, and the opening judgment data meets the preset change conditions, the opening control mode is determined to be the first opening control mode that increases the opening. When the temperature change value in the temperature change data is less than or equal to the first preset value, and the opening judgment data does not meet the preset change condition, the opening control mode is determined to be the second opening control mode that reduces the opening. When the temperature change value in the temperature change data is less than or equal to the first preset value and the opening judgment data meets the preset change condition, or when the temperature change value in the temperature change data is greater than the first preset value and the opening judgment data does not meet the preset change condition, the opening control mode is determined to be the third opening control mode that maintains the opening.

[0008] In one embodiment, the opening determination data includes pressure change rate, gas generation rate, and battery usage status. Prior to the step of determining the opening control mode based on the temperature change data and the opening determination data, the following steps are included: Determine the aging state and actual power supply state of the battery in its usage state, and determine the pressure change value and rate change value corresponding to the aging state and actual power supply state in a preset usage cycle change table; When the pressure change rate is greater than the pressure change value, or the gas generation rate is greater than the rate change value, the opening judgment data is determined to meet the preset change condition. When the rate of pressure change is less than or equal to the pressure change value, and the rate of gas generation is less than or equal to the rate change value, it is determined that the opening judgment data does not meet the preset change condition.

[0009] In one embodiment, the opening control module includes a pressure relief port and a sealing plate arranged in a scale-like layer on the pressure relief port. The sealing plates are telescopically connected by a movable pull shaft. When the opening control mode is a first opening control mode, the step of determining the opening control command based on the opening control mode and the opening judgment data includes: Determine the pressure value at the pressure relief port of the opening judgment data, and the gas generation rate in the opening judgment data; When the pressure value at the vent is greater than the second preset value, or the gas generation rate is greater than the first preset rate, the opening control command is determined to control the movable pull shaft to open the sealing plate in sequence; When the pressure value at the vent is less than or equal to a second preset value, and the gas generation rate is less than or equal to a first preset rate, the opening control command is determined to control the movable pull shaft to open the next sealing plate.

[0010] In one embodiment, after the step of determining the opening control command based on the opening control mode and the opening judgment data, the method includes: When the opening control command is to control the movable pull shaft to open the sealing plate in sequence, the opening judgment data is detected in real time to see if the improvement conditions are met. When the opening judgment data does not meet the improvement conditions, the movable pull shaft is controlled to maintain the current control state. The improvement conditions include the vent pressure value being less than or equal to a second preset value, or the gas generation rate being less than or equal to a first preset rate. When the opening control command is to control the movable pull shaft to open the next sealing plate, the vent pressure value and gas generation rate after a preset running time are obtained. Based on the vent pressure value and gas generation rate after the preset running time, the step of determining the opening control command according to the opening control mode and the opening judgment data is executed.

[0011] In one embodiment, when the opening control mode is a second opening control mode, the step of determining the opening control command based on the opening control mode and the opening judgment data includes: When the battery usage status in the opening judgment data is reduced output status, and the gas generation rate is less than or equal to the first preset rate, the opening control command is determined to control the movable pull shaft to sequentially close the sealing plate; When the battery usage status in the opening determination data is an increased output status, or when the gas generation rate is greater than the first preset rate, the opening control command is determined to control the movable pull shaft to a holding state.

[0012] In one embodiment, when the opening control mode is a first opening control mode that increases the opening, after the step of determining the opening control mode based on the temperature change data and the opening judgment data, the method includes: When the temperature change value in the temperature change data is greater than a third preset value, or when the opening judgment data meets the preset opening conditions, the opening control command is determined to control the movable pull shaft to open all the sealing plates. The third preset value is greater than the first preset value, and the preset opening conditions include at least one of the following: the pressure change rate in the opening judgment data is greater than a preset maximum pressure rate, the gas generation rate in the opening judgment data is greater than a preset maximum generation rate, and the battery usage state in the opening judgment data meets a preset maximum usage state.

[0013] Furthermore, to achieve the above objectives, this application also proposes a battery explosion-proof valve opening control device, which includes a battery explosion-proof valve opening controller, an environmental collector, and an opening control module. The battery explosion-proof valve opening controller is connected to the environmental collector and the opening control module. The battery explosion-proof valve opening controller includes: The information acquisition module is used to acquire environmental change data collected by the environmental collector, wherein the environmental change data includes temperature change data and opening judgment data inside the battery explosion-proof valve; An opening control module is used to determine an opening control mode based on the temperature change data and the opening judgment data, and to determine an opening control command based on the opening control mode and the opening judgment data, so as to perform opening control on the opening control module based on the opening control command.

[0014] In addition, to achieve the above objectives, this application also proposes a battery explosion-proof valve opening control device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the battery explosion-proof valve opening control method described above.

[0015] In addition, to achieve the above objectives, this application also proposes a computer storage medium storing a computer program, which, when executed by a processor, implements the steps of the battery explosion-proof valve opening control method described above.

[0016] This application provides a battery explosion-proof valve opening control method, applied to a battery explosion-proof valve opening control device. The battery explosion-proof valve opening control device includes an environmental data acquisition unit and an opening control module. The method acquires environmental change data collected by the environmental data acquisition unit, including internal temperature change data and opening judgment data of the battery explosion-proof valve. An opening control mode is determined based on the temperature change data and the opening judgment data, and an opening control command is determined based on the opening control mode and the opening judgment data. The opening control module is then opened based on the opening control command. This battery explosion-proof valve opening control method determines different opening control modes for controlling the battery explosion-proof valve by using internal temperature change data and opening judgment data. Then, an opening control command is determined based on the different modes and the opening judgment data. The opening control module is then opened based on this command. This method combines temperature and opening judgment data for opening control, avoiding the problem of passively controlling the opening solely through pressure values ​​(which fails to achieve good control results when pressure is insufficient or excessive). Therefore, by combining temperature and opening judgment data for opening control, the effectiveness of battery explosion-proof valve opening control is improved. Attached Figure Description

[0017] Figure 1 This is a flowchart illustrating the first embodiment of the battery explosion-proof valve opening control method of this application; Figure 2 This is a schematic diagram illustrating an implementation process of the battery explosion-proof valve opening control method of this application; Figure 3 This is an equivalent control diagram of the battery explosion-proof valve of this application; Figure 4 This is a schematic diagram of the battery explosion-proof valve opening control device of this application; Figure 5 This is a schematic diagram of the hardware operating environment involved in the device in this application.

[0018] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0020] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The common method for controlling the opening of a battery explosion-proof valve is to mechanically control the opening size based on the internal pressure. In this case, the opening size is entirely passively driven by pressure. The explosion-proof valve essentially acts as a pressure-driven baffle, with the opening size determined by the pressure. However, this approach has drawbacks. If the opening pressure is set too high (meaning the baffle requires a large pressure to open), a large internal pressure may be needed to achieve internal pressure relief. Conversely, if the opening pressure is set too low (meaning the baffle requires a small pressure to open), a small internal pressure may be needed to achieve internal pressure relief. For example, vibrations might cause accidental opening. Therefore, controlling the opening solely by pressure will result in poor control of the battery explosion-proof valve's opening.

[0022] Therefore, based on the shortcomings of the above-mentioned battery explosion-proof valve opening control schemes, this application proposes a battery explosion-proof valve opening control method. The solution of this application embodiment is: to determine different opening control modes for controlling the battery explosion-proof valve by using internal temperature change data and opening judgment data; then, to determine opening control commands based on different modes and opening judgment data; and to implement opening control module opening control based on these commands. In other words, it is necessary to combine temperature and opening judgment data for opening control, thus avoiding the problem of passively controlling the opening solely through pressure values ​​(which fails to achieve good control effects when pressure is insufficient or excessive). Therefore, by combining temperature and opening judgment data for opening control, the effectiveness of battery explosion-proof valve opening control can be improved.

[0023] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a device capable of performing the above functions, such as a battery explosion-proof valve opening control device. The following description uses a battery explosion-proof valve opening control device as an example to illustrate this embodiment and the subsequent embodiments.

[0024] Based on this, the embodiments of this application provide a method for controlling the opening of a battery explosion-proof valve, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the battery explosion-proof valve opening control method of this application.

[0025] Reference Figure 1 This application provides a method for controlling the opening of a battery explosion-proof valve. This method is applied to a battery explosion-proof valve opening control device, which includes an environmental data acquisition unit and an opening control module. The method for controlling the opening of the battery explosion-proof valve includes: Step S10: Obtain environmental change data collected by the environmental collector, including temperature change data inside the battery explosion-proof valve and opening determination data. In this embodiment, the battery explosion-proof valve opening control method is applied to the battery explosion-proof valve opening control device. The battery explosion-proof valve opening control device includes an environmental collector and an opening control module. The environmental collector can be various sensors that collect internal information from the battery explosion-proof valve. Its setting position can be adaptively set according to the actual situation. For example, it can be directly set on the pressure relief port or related internal components, such as directly set on the battery. Of course, it can also be set in other positions, which are not limited here. The opening control module refers to the structural design of the entire pressure relief port. It can be a scale-like opening structure, which can realize the sequential opening control to ensure the intelligence of the entire control. Furthermore, during the entire opening control process, it is necessary to acquire environmental change data collected by the environmental acquisition device. This environmental change data includes temperature change data inside the battery explosion-proof valve and opening judgment data. Temperature change data refers to the temperature changes inside the explosion-proof valve, such as continuous temperature rise or stable temperature within a certain range. Opening judgment data refers to the basis for the opening control module to make an opening judgment, which includes at least internal pressure changes and gas generation rate. Thus, opening control can be performed based on temperature changes and opening control criteria to avoid the defects of pneumatic mechanical control and ensure the effectiveness of battery explosion-proof valve opening control.

[0026] Step S20: Determine the opening control mode based on temperature change data and opening judgment data, and determine the opening control command based on the opening control mode and opening judgment data, so as to perform opening control on the opening control module based on the opening control command.

[0027] In this embodiment, after determining the temperature change data and opening judgment data inside the battery explosion-proof valve, the opening control mode is determined based on these data. The opening control mode refers to the mode in which the opening control module is controlled, such as further opening, closing, or maintaining the opening control module. Then, based on the opening judgment data under different opening control modes, the opening control command is determined. This allows for the determination of the commands to control the opening module under different modes. Prioritizing the determination of the opening control mode ensures the accuracy of subsequent pre-control; that is, the opening control mode can be used to determine the impact of temperature, thereby determining the subsequent control commands. Finally, the temperature change data and opening judgment data can be combined for overall control to ensure the effectiveness of the battery explosion-proof valve's opening control.

[0028] In one embodiment, reference is made to Figure 2 , Figure 2 This is a schematic diagram illustrating an implementation process of the battery explosion-proof valve opening control method of this application. By acquiring environmental changes (temperature change data and opening judgment data) of the battery explosion-proof valve, the control mode for the battery explosion-proof valve can be determined based on the temperature change data and opening judgment data. This includes control modes for reducing the opening, maintaining the opening, and increasing the opening. In the pressure-reducing opening control mode, the opening is reduced by a movable lever, which is a lever used by the opening control module to control the opening size. In the maintaining opening control mode, the movable lever is maintained. In the increasing opening control mode, the opening is increased by the movable lever. Considering the feedback control effect of temperature change data and opening judgment data, the opening control can be combined with these data to improve the effectiveness of the battery explosion-proof valve opening control.

[0029] In this embodiment, a battery explosion-proof valve opening control method is provided, applied to a battery explosion-proof valve opening control device. The battery explosion-proof valve opening control device includes an environmental data collector and an opening control module. The method acquires environmental change data collected by the environmental data collector, including internal temperature change data and opening judgment data of the battery explosion-proof valve. An opening control mode is determined based on the temperature change data and the opening judgment data, and an opening control command is determined based on the opening control mode and the opening judgment data. The opening control module is then opened based on the opening control command. This battery explosion-proof valve opening control method determines different opening control modes for controlling the battery explosion-proof valve by using internal temperature change data and opening judgment data. Then, an opening control command is determined based on the different modes and the opening judgment data. The opening control module is then opened based on this command. This method combines temperature and opening judgment data for opening control, avoiding the problem of passively controlling the opening solely through pressure values ​​(which fails to achieve good control results when pressure is insufficient or excessive). Therefore, by combining temperature and opening judgment data for opening control, the effectiveness of battery explosion-proof valve opening control is improved.

[0030] Furthermore, based on the first embodiment of this application described above, a second embodiment of the battery explosion-proof valve opening control method of this application is proposed. In this embodiment, step S20, the step of determining the opening control mode based on temperature change data and opening judgment data, includes: Step S201: When the temperature change value in the temperature change data is greater than the first preset value, and the opening judgment data meets the preset change conditions, the opening control mode is determined to be the first opening control mode of increasing the opening. Step S202: When the temperature change value in the temperature change data is less than or equal to the first preset value, and the opening judgment data does not meet the preset change conditions, the opening control mode is determined to be the second opening control mode of reducing the opening. In step S203, if the temperature change value in the temperature change data is less than or equal to the first preset value and the opening judgment data meets the preset change condition, or if the temperature change value in the temperature change data is greater than the first preset value and the opening judgment data does not meet the preset change condition, the opening control mode is determined to be the third opening control mode of maintaining the opening.

[0031] In this embodiment, determining the opening control mode mainly considers the temperature conditions within the temperature change data and the internal changes in the opening judgment data. The relationship between these two factors is then used to determine the control mode required at that time. For example, when the temperature change value in the temperature change data is greater than a first preset value, and the opening judgment data meets a preset change condition, the opening control mode is determined to be the first opening control mode, which increases the opening. This is because excessively high temperatures, coupled with the already met opening judgment conditions, could lead to a continuous increase in internal pressure or other factors. Entering the first opening control mode increases the opening to avoid drastic damage to internal instruments. The preset change condition refers to the opening judgment data meeting the conditions for increasing the opening, such as increased pressure or increased gas generation rate. In another embodiment, when the temperature change value in the temperature change data is less than or equal to a first preset value, and the opening judgment data does not meet the preset change condition, the opening control mode is determined to be the second opening control mode, which decreases the opening. This is because the release pressure from the previous opening causes a decrease in temperature and related pressure and gas generation rate, thus entering the second opening control mode decreases the opening. Another approach is to determine the opening control mode as the third opening control mode, which maintains the opening, when the temperature change value in the temperature change data is less than or equal to the first preset value and the opening judgment data meets the preset change conditions, or when the temperature change value in the temperature change data is greater than the first preset value and the opening judgment data does not meet the preset change conditions. That is, if one of the two conditions is met and the other is not, then the third opening control mode can be entered. Furthermore, based on the judgment of different opening control modes, subsequent control can be carried out in the corresponding opening control mode to ensure the intelligence and control effect of the entire battery explosion-proof valve opening control.

[0032] For example, in the third opening control mode, it is necessary to monitor temperature change data and opening judgment data in real time to determine when to enter the first or second opening control mode. In this case, the first preset value can be set to a certain value at room temperature to ensure that the entire control does not continuously remain in the third opening control mode, thus ensuring the accuracy of the entire opening control. Alternatively, the preset change condition can be set to an easily triggered condition to ensure that the corresponding opening control mode can be quickly activated subsequently, thereby ensuring the accuracy and effectiveness of subsequent opening control.

[0033] In one embodiment, the opening determination data includes pressure change rate, gas generation rate, and battery usage status. Before the step of determining the opening control mode based on temperature change data and opening determination data, the following steps are included: Step S2001: Determine the aging state and actual power supply state in the battery usage state, and determine the pressure change value and rate change value corresponding to the aging state and actual power supply state in the preset usage cycle change table. Step S2002: When the pressure change rate is greater than the pressure change value, or the gas generation rate is greater than the rate change value, determine that the opening judgment data meets the preset change conditions. Step S2003: When the pressure change rate is less than or equal to the pressure change value and the gas generation rate is less than or equal to the rate change value, it is determined that the opening judgment data does not meet the preset change conditions.

[0034] In this embodiment, determining whether the opening judgment data meets the preset change conditions is mainly based on the pressure change rate, gas generation rate, and battery usage status. The pressure change rate refers to the rate of pressure change inside the explosion-proof valve, such as an increase at rate A. The gas generation rate refers to the rate of gas generation inside the explosion-proof valve, such as an increase at rate B. The battery usage status refers to the current usage state of the internal battery, which can be an increase in power output, a decrease in power output, or a decrease in overall output efficiency while power output remains constant. The opening control mode can then be determined based on these three factors. Priority is given to determining the aging state and actual power supply state within the battery usage status, and the corresponding pressure change value and rate change value are determined in the preset usage cycle change table. This determines the battery's operating time, which in turn determines the aging state corresponding to the current operating time. For example, if the battery operating time is T, the battery aging state is 15%. This aging state can be determined based on the actual battery properties. The actual power supply state refers to the battery's actual output demand, such as a change in charge from S1 to S2. This can be determined in the preset usage cycle change table. Determine the pressure and rate of change values ​​corresponding to the aging state and the actual power supply state. The preset usage cycle change table refers to defining the internal pressure change value and gas generation rate of the battery under different aging states and actual power supply states. For example, if the aging state is 85% remaining and the actual power supply state is S2, then the pressure change value should be increased by Y compared to the normal state, and the rate of change value should be increased by V compared to the normal state, which can be determined in the preset usage cycle change table. Of course, the pressure and rate of change values ​​can also be defined as a specific numerical range, instead of needing to determine the pressure and rate of change values ​​under normal conditions in advance.Furthermore, after determining the pressure change value and the rate change value, the pressure change rate and gas generation rate are judged based on these values ​​to determine whether the preset change conditions are met. That is, if the pressure change rate is greater than the pressure change value, or the gas generation rate is greater than the rate change value, the opening judgment data is determined to meet the preset change conditions. In other words, if the pressure change rate is less than or equal to the pressure change value, and the gas generation rate is less than or equal to the rate change value, the opening judgment data is determined not to meet the preset change conditions. In this case, the opening judgment data is determined to meet the preset change conditions by using the pressure change rate, gas generation rate, and battery status. This allows for advance control based on information inside the explosion-proof valve to ensure the accuracy of subsequent explosion-proof valve opening control. At the same time, the pressure change rate, gas generation rate, and battery status can show the environmental changes inside the explosion-proof valve over a period of time. Using these environmental changes as the basis for opening control ensures the effectiveness of subsequent opening control and the overall explosion-proof valve control.

[0035] Furthermore, based on the first and / or second embodiments of this application described above, a third embodiment of the battery explosion-proof valve opening control method of this application is proposed. In this embodiment, step S20, the opening control module includes a pressure relief port and a sealing plate arranged in a scale-like stack on the pressure relief port. The sealing plates are connected by a movable pull shaft for telescopic extension. When the opening control mode is the first opening control mode, the step of determining the opening control command based on the opening control mode and the opening judgment data includes: Step S211: Determine the pressure value at the pressure relief port in the opening judgment data, and the gas generation rate in the opening judgment data; Step S212: When the vent pressure value is greater than the second preset value, or the gas generation rate is greater than the first preset rate, determine that the opening control command is to control the movable pull shaft to open the sealing plate in sequence. In step S213, when the vent pressure value is less than or equal to the second preset value and the gas generation rate is less than or equal to the first preset rate, the opening control command is determined to control the movable pull shaft to open the next sealing plate.

[0036] In this embodiment, the opening control module includes a pressure relief port and a sealing plate arranged in a scale-like layer on the pressure relief port. The sealing plates are connected by a movable pull shaft for telescopic movement. For example, refer to Figure 3 , Figure 3This is an equivalent control diagram of the battery explosion-proof valve of this application. a represents the state where the entire opening control module completely closes the pressure relief port under normal conditions. When control is required, the sealing plate can be pushed outward based on the telescopic control of the telescopic component in the movable pull rod, thereby realizing the first layer of opening (as shown in b). Of course, based on this method, the second, third, or even other layers can also be opened. Of course, the figure only shows a planar schematic diagram. At this time, the pressure relief port can be a circular or square design, that is, the entire design is equivalent to a scale-like stacked setting. At this point, the opening control command can be determined based on the opening control mode and opening judgment data. This is achieved by determining the vent pressure value at the vent and the gas generation rate within the vent judgment data. The vent pressure value refers to the pressure value collected at the vent, and the gas generation rate refers to the rate of CO and other gases produced during battery operation. A concentration sensor can be used to collect the concentration to determine the rate at this time. Since the battery may be in an open state, the determined rate is the difference between the exhaust rate and the gas generation rate. Furthermore, when the vent pressure value is greater than a second preset value, or the gas generation rate is greater than a first preset rate, the opening control command is determined to control the movable pull shaft to sequentially open the sealing plates. Figure 3 The design sequentially opens each layer of sealing plates, gradually increasing the opening size to ensure timely removal of internally generated gas and reduce its impact on the battery. A pressure value greater than a second preset value indicates that the pressure at the vent is greater than the discharge pressure, necessitating an increase in opening size. In another embodiment, when the vent pressure is less than or equal to the second preset value (which can be designed to be different values ​​depending on the actual situation, for example, R when opening one layer of sealing plates, R+2 when opening two layers, and so on), and the gas generation rate is less than or equal to the first preset rate, the opening control command is set to control the movable pull shaft to open the next sealing plate. This means there is no direct need for the exhaust effect to offset the gas generation effect, but because the temperature is high, to avoid drastic pressure changes caused by temperature fluctuations, the next sealing plate (the next layer) can be opened directly, thus ensuring the overall opening control effect and the overall pressure relief effect of the explosion-proof valve.

[0037] For example, the sealing plates arranged in a scale-like layer on the entire pressure relief port are connected by a movable pull shaft, which can realize layered pressure relief while reducing the difficulty of control. For example, the angle value required for control by angle alone would be relatively high, while layered control only requires the opening and closing of each layer of sealing plates, which can greatly reduce the difficulty of control and feedback control. At the same time, it can also ensure that the pressure relief effect adapts to the needs to ensure the intelligence of the entire pressure relief.

[0038] Furthermore, after determining the opening control command based on the opening control mode and opening judgment data, the steps include: Step S214: When the opening control command is to control the movable pull shaft to open the sealing plate in sequence, the opening judgment data is detected in real time to see if the improvement conditions are met. When the opening judgment data meets the improvement conditions, the movable pull shaft is controlled to maintain the current control state. The improvement conditions include that the vent pressure value is less than or equal to the second preset value and the gas generation rate is less than or equal to the first preset rate. Step S215: When the opening control command is to control the movable pull shaft to open the next sealing plate, obtain the vent pressure value and gas generation rate after a preset running time, and based on the vent pressure value and gas generation rate after the preset running time, execute the step of determining the opening control command according to the opening control mode and opening judgment data.

[0039] In this embodiment, after generating the opening control command, the sealing plates arranged in a scale-like stack are controlled. However, to avoid continuous control, i.e., continuous opening causing the opening to continuously increase when there is no pressure relief demand, the situation under different opening control commands is controlled. For example, when the opening control command is to control the movable pull shaft to open the sealing plates sequentially, the opening judgment data is detected in real time to see if the improvement conditions are met. If the opening judgment data meets the improvement conditions, the movable pull shaft is controlled to maintain the current control state. The improvement conditions include that the relief pressure value is less than or equal to a second preset value and the gas generation rate is less than or equal to a first preset rate. That is, since opening the sealing plates sequentially can make the overall pressure relief rate greater than the pressure generation rate, the current state can be maintained, i.e., the current sealing plate is kept open or closed. Furthermore, because the process of determining the opening control mode based on temperature change data and opening judgment data in real time, and determining the opening control command based on the opening control mode and opening judgment data, can ensure the intelligence of the entire explosion-proof valve opening control. This ensures that while maintaining normal pressure relief control, it does not over-relieve pressure (directly using the largest opening for pressure relief, which not only makes control more complex, but also causes foreign objects to enter or reduces the service life of the entire opening control module due to excessive opening), thus ensuring the effectiveness of the entire pressure relief control. In another embodiment, when the opening control command is to control the movable pull shaft to open the next sealing plate, the vent pressure value and gas generation rate after a preset running time are obtained. Based on the vent pressure value and gas generation rate after the preset running time, the step of determining the opening control command according to the opening control mode and opening judgment data is executed. That is, at this time, the sealing plates are not opened directly in sequence, but the vent pressure value and gas generation rate after the preset running time are obtained, for example, the vent pressure value and gas generation rate after 3 seconds are obtained, to determine whether the situation of step S212 or step S213 can be performed, and then control can be performed. Of course, at this time, the step of determining the opening control mode according to the temperature change data and opening judgment data, and determining the opening control command according to the opening control mode and opening judgment data can continue to be executed. That is, the judgment mode has the highest priority, and feedback judgment can be performed based on the vent pressure value and gas generation rate to ensure the accuracy of the entire pressure relief process control.

[0040] Furthermore, based on the first, second, and / or third embodiments of this application described above, a fourth embodiment of the battery explosion-proof valve opening control method of this application is proposed. In this embodiment, step S20, the step of determining the opening control command based on the opening control mode and opening judgment data when the opening control mode is the second opening control mode, includes: Step a: When the battery usage status in the opening judgment data is reduced output status and the gas generation rate is less than or equal to the first preset rate, the opening control command is determined to control the movable pull shaft to close the sealing plate in sequence. Step b: When the battery usage status in the opening judgment data is in the increased output state, or the gas generation rate is greater than the first preset rate, determine the opening control command to control the active pull shaft to the holding state.

[0041] In this embodiment, when determining the opening control command, assuming the second opening control mode is in effect, it is necessary to combine the internal battery usage status and gas generation rate for determination. That is, when the battery usage status in the opening judgment data is a reduced output state, and the gas generation rate is less than or equal to the first preset rate, the opening control command is determined to control the movable pull shaft to sequentially close the sealing plates. In other words, at this time, the battery is reducing output, and the gas generation rate is also less than a certain value. Based on this situation, the sealing plates will be closed sequentially. Of course, the relevant judgment data involving the battery can be adjusted according to the battery aging condition. For example, if the battery usage status is a reduced output state, the battery output voltage can be directly determined. Of course, its output power can also be determined, but the power is related to aging and the specific power supply equipment required. Therefore, aging can be combined to ensure the accuracy of determining the battery usage status as a reduced output state. Furthermore, after determining that the opening control command is to control the movable pull shaft to sequentially close the sealing plates, it will continue to close one layer of sealing plates and detect the battery usage status and gas generation rate at this time. It will then determine whether the battery usage status in the opening judgment data is in a reduced output state and the gas generation rate is less than or equal to a first preset rate. If so, the next layer of sealing plates will continue to close; otherwise, the current state of all sealing plates will be maintained. In another embodiment, when the battery usage status in the opening judgment data is in an increased output state, or the gas generation rate is greater than the first preset rate, the opening control command is determined to control the movable pull shaft to maintain the state. That is, if either of these conditions is met and the opening cannot be reduced, the current state of all sealing plates will be maintained. An increased output state refers to an increase in the battery's output voltage, for example, if the battery needs to supply power to more devices. The current state can be determined based on the output voltage value. Furthermore, a comprehensive judgment can be made by combining the battery status and the gas generation situation to ensure the accuracy of the sealing plate closing control, thereby ensuring the overall pressure relief effect.

[0042] In another embodiment, when the opening control mode is a first opening control mode that increases the opening, after the step of determining the opening control mode based on temperature change data and opening judgment data, the following steps are included: Step c: When the temperature change value in the temperature change data is greater than the third preset value, or when the opening judgment data meets the preset opening conditions, determine the opening control command to control the movable pull shaft to open all the sealing plates. The third preset value is greater than the first preset value. The preset opening conditions include at least one of the following: the pressure change rate in the opening judgment data is greater than the preset maximum pressure rate, the gas generation rate in the opening judgment data is greater than the preset maximum generation rate, and the battery usage state in the opening judgment data meets the preset maximum usage state.

[0043] In this embodiment, in addition to control based on different opening control modes, judgment is also made based on temperature change data. Specifically, when the temperature change value in the temperature change data is greater than a third preset value, or the opening judgment data meets preset opening conditions, the opening control command is determined to control the movable pull shaft to open all sealing plates. The third preset value is greater than the first preset value, which can be set to an infinitely high temperature value requiring heat dissipation. In this case, the preset opening conditions include at least one of the following: the pressure change rate in the opening judgment data is greater than a preset maximum pressure rate; the gas generation rate in the opening judgment data is greater than a preset maximum generation rate; and the battery usage state in the opening judgment data meets a preset maximum usage state. That is, when the temperature is too high, as long as one of the opening judgment data conditions is met, all sealing plates can be opened directly to achieve rapid pressure relief, thereby improving the pressure relief control effect when the temperature is too high.

[0044] For example, the movable pull shaft can also be set to open or close based on a control signal. Of course, it can also be opened directly based on external force. That is, in some cases, when the pressure value is too high, the movable pull shaft can be mechanically opened to relieve pressure. Of course, this pressure value is much greater than the various pressure thresholds set in the above embodiments. Therefore, emergency pressure relief control can be realized based on the design of the entire opening control module.

[0045] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the battery explosion-proof valve opening control method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0046] This application also provides a battery explosion-proof valve opening control device, which includes a battery explosion-proof valve opening controller, an environmental data collector, and an opening control module. The battery explosion-proof valve opening controller is connected to the environmental data collector and the opening control module. Please refer to [reference needed]. Figure 4 The battery explosion-proof valve opening controller includes: The information acquisition module 10 is used to acquire environmental change data collected by the environmental collector, including temperature change data and opening judgment data inside the battery explosion-proof valve. The opening control module 20 is used to determine the opening control mode based on temperature change data and opening judgment data, and to determine the opening control command based on the opening control mode and opening judgment data, so as to perform opening control on the opening control module based on the opening control command.

[0047] The battery explosion-proof valve opening control device provided in this application, employing the battery explosion-proof valve opening control method in the above embodiments, can solve the technical problem of poor control effect of battery explosion-proof valve opening. Compared with the prior art, the beneficial effects of the battery explosion-proof valve opening control device provided in this application are the same as the beneficial effects of the battery explosion-proof valve opening control method provided in the above embodiments, and other technical features in the battery explosion-proof valve opening control device are the same as the features disclosed in the methods of the above embodiments, and will not be repeated here.

[0048] This application provides a battery explosion-proof valve opening control device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the battery explosion-proof valve opening control method in the above embodiment 1.

[0049] The following is for reference. Figure 5 The diagram illustrates a structural schematic suitable for implementing a battery explosion-proof valve opening control device according to embodiments of this application. The battery explosion-proof valve opening control device in embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The battery explosion-proof valve opening control device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0050] like Figure 5As shown, the battery explosion-proof valve opening control device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the battery explosion-proof valve opening control device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following devices can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the battery explosion-proof valve opening control device to communicate wirelessly or wiredly with other devices to exchange data. Although a battery explosion-proof valve opening control device with various devices is shown in the figure, it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed alternatively.

[0051] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0052] The battery explosion-proof valve opening control device provided in this application, employing the battery explosion-proof valve opening control method in the above embodiments, can solve the technical problem of poor control effect of battery explosion-proof valve opening. Compared with the prior art, the beneficial effects of the battery explosion-proof valve opening control device provided in this application are the same as the beneficial effects of the battery explosion-proof valve opening control method provided in the above embodiments, and other technical features in this battery explosion-proof valve opening control device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0053] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0054] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0055] This application provides a computer storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, which are used to execute the battery explosion-proof valve opening control method in the above embodiments.

[0056] The computer storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor devices, apparatuses, or components, or any combination thereof. More specific examples of computer storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution apparatus, device, or device. The program code contained on the computer storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0057] The aforementioned computer storage medium may be included in the battery explosion-proof valve opening control device; or it may exist independently and not be assembled into the battery explosion-proof valve opening control device.

[0058] The aforementioned computer storage medium carries one or more programs. When these programs are executed by the battery explosion-proof valve opening control device, the battery explosion-proof valve opening control device: Acquire environmental change data collected by the environmental data acquisition device, including temperature change data and opening determination data inside the battery explosion-proof valve; The opening control mode is determined based on temperature change data and opening judgment data, and the opening control command is determined based on the opening control mode and opening judgment data, so as to control the opening of the opening control module based on the opening control command.

[0059] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0060] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using dedicated hardware-based apparatus to perform the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0061] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0062] The computer storage medium provided in this application stores computer-readable program instructions (i.e., a computer program) for executing the above-described battery explosion-proof valve opening control method, which can solve the technical problem of poor battery explosion-proof valve opening control effect. Compared with the prior art, the beneficial effects of the computer storage medium provided in this application are the same as the beneficial effects of the battery explosion-proof valve opening control method provided in the above embodiments, and will not be repeated here.

[0063] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the battery explosion-proof valve opening control method described above.

[0064] The computer program product provided in this application can solve the technical problem of poor control effect of battery explosion-proof valve opening. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the battery explosion-proof valve opening control method provided in the above embodiments, and will not be repeated here.

[0065] The above are only some embodiments of this application and do not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for controlling the opening of a battery explosion-proof valve, characterized in that, The battery explosion-proof valve opening control method is applied to a battery explosion-proof valve opening control device, which includes an environmental data collector and an opening control module. The battery explosion-proof valve opening control method includes: The environmental change data collected by the environmental collector is obtained, wherein the environmental change data includes temperature change data and opening determination data inside the battery explosion-proof valve; An opening control mode is determined based on the temperature change data and the opening judgment data, and an opening control command is determined based on the opening control mode and the opening judgment data, so as to perform opening control on the opening control module based on the opening control command.

2. The battery explosion-proof valve opening control method as described in claim 1, characterized in that, The step of determining the opening control mode based on the temperature change data and the opening determination data includes: When the temperature change value in the temperature change data is greater than a first preset value, and the opening judgment data meets the preset change conditions, the opening control mode is determined to be the first opening control mode that increases the opening. When the temperature change value in the temperature change data is less than or equal to the first preset value, and the opening judgment data does not meet the preset change condition, the opening control mode is determined to be the second opening control mode that reduces the opening. When the temperature change value in the temperature change data is less than or equal to the first preset value and the opening judgment data meets the preset change condition, or when the temperature change value in the temperature change data is greater than the first preset value and the opening judgment data does not meet the preset change condition, the opening control mode is determined to be the third opening control mode that maintains the opening.

3. The battery explosion-proof valve opening control method as described in claim 2, characterized in that, The opening determination data includes pressure change rate, gas generation rate, and battery usage status. Prior to the step of determining the opening control mode based on the temperature change data and the opening determination data, the following steps are included: Determine the aging state and actual power supply state of the battery in its usage state, and determine the pressure change value and rate change value corresponding to the aging state and actual power supply state in a preset usage cycle change table; When the pressure change rate is greater than the pressure change value, or the gas generation rate is greater than the rate change value, the opening judgment data is determined to meet the preset change condition. When the rate of pressure change is less than or equal to the pressure change value, and the rate of gas generation is less than or equal to the rate change value, it is determined that the opening judgment data does not meet the preset change condition.

4. The battery explosion-proof valve opening control method as described in claim 2, characterized in that, The opening control module includes a pressure relief port and a sealing plate arranged in a scale-like layer on the pressure relief port. The sealing plates are connected telescopically by a movable pull shaft. When the opening control mode is the first opening control mode, the step of determining the opening control command based on the opening control mode and the opening judgment data includes: Determine the pressure value at the pressure relief port of the opening judgment data, and the gas generation rate in the opening judgment data; When the pressure value at the vent is greater than the second preset value, or the gas generation rate is greater than the first preset rate, the opening control command is determined to control the movable pull shaft to open the sealing plate in sequence; When the pressure value at the vent is less than or equal to a second preset value, and the gas generation rate is less than or equal to a first preset rate, the opening control command is determined to control the movable pull shaft to open the next sealing plate.

5. The battery explosion-proof valve opening control method as described in claim 4, characterized in that, After the step of determining the opening control command based on the opening control mode and the opening judgment data, the following steps are included: When the opening control command is to control the movable pull shaft to open the sealing plate in sequence, the opening judgment data is detected in real time to see if the improvement conditions are met. When the opening judgment data does not meet the improvement conditions, the movable pull shaft is controlled to maintain the current control state. The improvement conditions include the vent pressure value being less than or equal to a second preset value and the gas generation rate being less than or equal to a first preset rate. When the opening control command is to control the movable pull shaft to open the next sealing plate, the vent pressure value and gas generation rate after a preset running time are obtained. Based on the vent pressure value and gas generation rate after the preset running time, the step of determining the opening control command according to the opening control mode and the opening judgment data is executed.

6. The battery explosion-proof valve opening control method as described in claim 4, characterized in that, When the opening control mode is the second opening control mode, the step of determining the opening control command based on the opening control mode and the opening judgment data includes: When the battery usage status in the opening judgment data is reduced output status, and the gas generation rate is less than or equal to the first preset rate, the opening control command is determined to control the movable pull shaft to sequentially close the sealing plate; When the battery usage status in the opening determination data is an increased output status, or when the gas generation rate is greater than the first preset rate, the opening control command is determined to control the movable pull shaft to a holding state.

7. The battery explosion-proof valve opening control method according to any one of claims 2 to 6, characterized in that, When the opening control mode is the first opening control mode that increases the opening, after the step of determining the opening control mode based on the temperature change data and the opening judgment data, the following steps are included: When the temperature change value in the temperature change data is greater than a third preset value, or when the opening judgment data meets the preset opening conditions, the opening control command is determined to control the movable pull shaft to open all the sealing plates. The third preset value is greater than the first preset value, and the preset opening conditions include at least one of the following: the pressure change rate in the opening judgment data is greater than a preset maximum pressure rate, the gas generation rate in the opening judgment data is greater than a preset maximum generation rate, and the battery usage state in the opening judgment data meets a preset maximum usage state.

8. A battery explosion-proof valve opening control device, characterized in that, The battery explosion-proof valve opening control device includes a battery explosion-proof valve opening controller, an environmental collector, and an opening control module. The battery explosion-proof valve opening controller is connected to the environmental collector and the opening control module. The battery explosion-proof valve opening controller includes: The information acquisition module is used to acquire environmental change data collected by the environmental collector, wherein the environmental change data includes temperature change data and opening judgment data inside the battery explosion-proof valve; An opening control module is used to determine an opening control mode based on the temperature change data and the opening judgment data, and to determine an opening control command based on the opening control mode and the opening judgment data, so as to perform opening control on the opening control module based on the opening control command.

9. A battery explosion-proof valve opening control device, characterized in that, The battery explosion-proof valve opening control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the battery explosion-proof valve opening control method as described in any one of claims 1 to 7.

10. A computer storage medium, characterized in that, The computer storage medium stores a computer program, which, when executed by a processor, implements the steps of the battery explosion-proof valve opening control method as described in any one of claims 1 to 7.

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