Mobile power supply protection method and device and mobile power supply

Abstract

The invention provides a mobile power supply protection method and device and a mobile power supply. The protection method of the mobile power supply is applied to the mobile power supply, the mobile power supply comprises a first accommodating space and a second accommodating space which are mutually independent, the first accommodating space is a sealed space, an air pressure sensor is arranged in the first accommodating space, and a battery module is arranged in the second accommodating space. The mobile power supply protection method comprises the steps of detecting real-time air pressure of an environment where the mobile power supply is located based on an air pressure sensor; the real-time air pressure changes along with the altitude of the environment where the mobile power supply is located; and determining the environment category of the environment where the mobile power supply is located based on the change rate of the real-time air pressure, and cutting off a charging and discharging loop of the battery module under the condition that the environment category is the target environment category. According to the scheme, the aviation scene where the mobile power supply is located can be effectively identified, the charging and discharging loop of the mobile power supply is cut off in time, and the safety of an aircraft is improved.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of battery control technology, and in particular to a protection method, device, and power bank for a mobile power supply. Background Technology

[0002] Portable power banks, as portable energy storage devices, are widely used in powering various electronic devices. Their safety design typically includes conventional electrical protection mechanisms such as overcharge, over-discharge, and short-circuit protection, ensuring safe battery operation during daily use. However, under specific environmental conditions, such as during air travel, portable power banks may face unique risks different from those encountered on the ground.

[0003] In related technologies, power banks often use pressure switches or MEMS pressure sensors for industrial control or environmental monitoring, but they are not integrated with charging and discharging logic, making it difficult to identify potential safety hazards in high-altitude, low-pressure environments. Lithium-ion batteries experience accelerated electrolyte evaporation in low-pressure environments; continuous charging and discharging can lead to increased battery temperature, swelling, or even fire, causing serious safety problems. Summary of the Invention

[0004] This application provides a method, device, and power bank for protecting a power bank, which can effectively identify the aviation scenario in which the power bank is located, significantly reduce the false judgment rate, and improve the accuracy of safety protection.

[0005] The technical solution of this application embodiment is implemented as follows: In a first aspect, embodiments of this application provide a protection method for a portable power bank, applied to a portable power bank including a first containment space and a second containment space that are independent of each other. The first containment space is a sealed space and a pressure sensor is disposed in the first containment space. A battery module is disposed in the second containment space. The method includes: detecting the real-time air pressure of the environment in which the portable power bank is located based on the pressure sensor; the real-time air pressure changes with the altitude of the environment in which the portable power bank is located; determining the environmental category of the environment in which the portable power bank is located based on the rate of change of the real-time air pressure; and cutting off the charging and discharging circuit of the battery module when the environmental category is the target environmental category.

[0006] Based on the aforementioned technical methods, the first containment space for the pressure sensor and the second containment space for the battery module are independently configured to prevent temperature changes in the battery module from affecting the pressure sensor. The pressure sensor detects real-time air pressure and analyzes its rate of change to determine whether the power bank is in a high-altitude environment such as an aircraft. When characteristics matching the target environment category are detected, the charging and discharging circuit of the battery module is immediately cut off to avoid safety hazards such as electrolyte vaporization, battery swelling, or fire caused by low air pressure. Compared to existing methods that rely on a single air pressure threshold, this approach effectively distinguishes between real high-altitude environments and non-high-altitude scenarios such as elevators and mountains, significantly reducing the false positive rate and improving the accuracy of safety protection.

[0007] In some embodiments, the rate of change includes an ascent rate and a descent rate. Determining the environmental category of the environment in which the power bank is located based on the rate of change of real-time air pressure includes: determining the environmental category as a first target environmental category when the rate of increase of real-time air pressure is greater than a first preset rate and is maintained for a first preset time; the first target environmental category indicates that the power bank is in an aircraft during the ascent phase; and determining that the power bank is in a second target environmental category when the rate of decrease of real-time air pressure is greater than a second preset rate and is maintained for a second preset time; the second target environmental category indicates that the power bank is in an aircraft during the descent phase.

[0008] Based on the aforementioned technical methods, when determining the environmental category, not only are air pressure values ​​considered, but also the rates and durations of ascent and descent are introduced as auxiliary judgment conditions. This enables more accurate identification of typical air pressure change patterns during the aircraft's ascent or descent phases, thereby improving the ability to identify high-altitude environments. Compared to the traditional method that relies solely on fixed air pressure thresholds, this scheme effectively reduces false triggers in non-aviation scenarios and improves overall judgment accuracy.

[0009] In some embodiments, when the rate of change of real-time air pressure is less than a preset rate of change, the method further includes: when the real-time air pressure is less than the preset air pressure and remains so for a third preset time, determining that the mobile power supply is in a third target environment category; the third target environment category indicates that the mobile power supply is in an aircraft during a stable flight phase.

[0010] Based on the above technical means, even when the air pressure change rate is low, if the air pressure is below the set threshold for a long time, the aircraft can still be determined to be in a stable flight phase. The protection mechanism can be triggered in a timely manner under various flight conditions, thereby improving the accuracy of judgment.

[0011] In some embodiments, a temperature sensor is also provided in the second accommodating space, and the method further includes: detecting the real-time temperature of the battery module based on the temperature sensor; and cutting off the charging and discharging circuit of the battery module when the real-time temperature is greater than a preset temperature.

[0012] Based on the aforementioned technical methods, equipment safety can be further ensured by monitoring battery temperature under normal atmospheric pressure. When the battery temperature is too high, the charging and discharging circuit can be actively cut off even if the equipment has not entered a high-altitude environment, preventing safety issues caused by overheating.

[0013] In some embodiments, the power bank is further provided with an emergency button, and the method further includes: in the event that the charging and discharging circuit of the battery module is cut off, in response to a trigger event of the emergency button, turning on the charging and discharging circuit of the battery module.

[0014] Based on the aforementioned technical means, the emergency button can be designed to allow users to temporarily restore low-power power supply in emergency situations while meeting aviation safety requirements. This balances safety and practicality, and avoids affecting the user experience due to complete disabling.

[0015] In some embodiments, the power bank is further provided with a display module. When the environment category is the target environment category, the method further includes at least one of the following: displaying a prompt message based on the display module, the prompt message indicating that the power bank has entered a high-altitude mode and that the charging and discharging functions of the power bank are disabled; and sending a prompt message to an external device when the power bank is connected to an external device.

[0016] Based on the aforementioned technical means, the current status is fed back to the user through both hardware display and software push, enhancing the user's awareness of the device's operating status, reducing misoperation, and thus improving the user experience.

[0017] Secondly, embodiments of this application provide a protection device for a power bank, applied to a power bank. The power bank includes a first containment space and a second containment space that are independent of each other. The first containment space is a sealed space and a pressure sensor is disposed in the first containment space. The second containment space is disposed of a battery module. The device includes: a detection module, used to detect the real-time air pressure of the environment in which the power bank is located based on the pressure sensor; the real-time air pressure changes with the altitude of the environment in which the power bank is located; and a cut-off module, used to determine the environmental category of the environment in which the power bank is located based on the rate of change of the real-time air pressure, and cut off the charging and discharging circuit of the battery module when the environmental category is the target environmental category.

[0018] Thirdly, embodiments of this application provide a portable power bank, including a first and a second independent housing space. The first housing space is a sealed space and contains a pressure sensor. The second housing space contains a battery module and a control module. The control module is connected to the pressure sensor and the charging / discharging circuit of the battery module, respectively. The pressure sensor is used to detect the real-time air pressure of the environment in which the portable power bank is located. The real-time air pressure changes with the altitude of the environment in which the portable power bank is located. The control module is used to determine the environmental category of the environment in which the portable power bank is located based on the rate of change of the real-time air pressure, and to cut off the charging / discharging circuit of the battery module when the environmental category is the target environmental category. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first implementation process of a protection method for a mobile power bank provided in an embodiment of this application; Figure 2 This is a schematic diagram of a protection device based on a pneumatic switch provided in an embodiment of this application; Figure 3 This is a schematic diagram of a protection device based on a barometric pressure sensor provided in an embodiment of this application; Figure 4 This is a schematic diagram of the second implementation process of a protection method for a mobile power bank provided in an embodiment of this application; Figure 5 This is a schematic diagram of the composition structure of a protection device for a mobile power bank provided in an embodiment of this application; Figure 6 This is a schematic diagram of the hardware entity of a mobile power bank provided in an embodiment of this application; Figure 7 This is a schematic diagram of the hardware entity of a computer device provided in an embodiment of this application.

[0020] It should be noted that the terms "first" and "second" mentioned above are only used to distinguish between different options and do not represent the degree of superiority or inferiority of the options or their priority in the implementation process. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and embodiments. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the following description, references to "some embodiments" describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same or different subsets of all possible embodiments and may be combined with each other without conflict. The terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application.

[0024] Current power bank safety protection primarily focuses on routine electrical faults such as overcharging, over-discharging, and short circuits, lacking specific protection against the high-altitude, low-pressure environment of aviation scenarios. During aircraft cruise, cabin pressure is typically maintained at the equivalent pressure of an altitude of 2000-3000 meters (approximately 0.7-0.8 atm). Although lower than ground pressure, existing power bank protection circuits cannot recognize this pressure difference and may still charge and discharge normally. In low-pressure environments, lithium batteries experience accelerated electrolyte evaporation. Charging and discharging under these conditions further exacerbates electrolyte vaporization due to increased battery temperature, potentially leading to battery swelling, leakage, or even fire, posing a threat to the safety of aircraft passengers and equipment.

[0025] To address the aforementioned issues, this application provides a protection method for a portable power bank. This method uses a barometric pressure sensor to detect real-time air pressure and analyze its rate of change to determine whether the power bank is in a high-altitude environment, such as an aircraft. When characteristics matching the target environment category are detected, the charging and discharging circuit of the battery module is immediately cut off to prevent safety hazards such as electrolyte vaporization, battery swelling, or fire caused by low air pressure. Compared to existing methods that rely on a single air pressure threshold, this method effectively distinguishes between real high-altitude environments and non-high-altitude scenarios such as elevators and mountains, significantly reducing the false positive rate and improving the accuracy of safety protection.

[0026] Figure 1 This is a schematic diagram of the first implementation flow of a protection method for a portable power bank provided in this application embodiment. The method is applied to a portable power bank, which includes a first and a second independent receiving space. The first receiving space is a sealed space and contains a pressure sensor. The second receiving space contains a battery module, such as... Figure 1 As shown, the method includes the following steps S101 and S102, combining... Figure 1 The steps are explained below.

[0027] Step S101: Detect the real-time air pressure of the environment where the power bank is located based on the air pressure sensor; the real-time air pressure changes with the altitude of the environment where the power bank is located.

[0028] In some embodiments, a barometric pressure sensor is an electronic component used to detect changes in ambient air pressure, providing the power bank with air pressure information about its surroundings. The barometric pressure sensor can be a high-precision sensor to accurately identify changes in air pressure at high altitudes.

[0029] In some embodiments, the mobile unit is provided with a first accommodating space and a second accommodating space that are independent of each other; the air pressure sensor is integrated in the first accommodating space of the mobile power supply, and the first accommodating space is sealed with a silicone sealing ring to isolate the temperature interference that may be caused by the heat generated by the battery inside the device, thereby improving the detection accuracy.

[0030] In some embodiments, the air pressure of the environment around the power bank changes accordingly when the power bank is at different altitudes. For example, during the cruise phase of an aircraft, the cabin pressure is typically maintained at approximately 0.7-0.8 atm, which is equivalent to the air pressure level at an altitude of 2000-3000 meters. At this time, the air pressure sensor will detect the changes in real-time air pressure and use these changes as a basis for determining the current environmental category.

[0031] In some embodiments, the battery module is used to store electrical energy, and when the charging and discharging circuit of the battery module is open, it can supply power to external devices through the interface of the power bank, or connect to an external power source through the interface of the power bank to charge the power bank.

[0032] Step S102: Determine the environmental category of the mobile power supply based on the real-time air pressure change rate, and cut off the charging and discharging circuit of the battery module if the environmental category is the target environmental category.

[0033] In some embodiments, if the power bank is charged or discharged under low voltage conditions, the increased battery temperature will further exacerbate the vaporization of the electrolyte, which may lead to battery swelling, leakage, or even fire, thereby causing damage to surrounding objects. Especially in aviation scenarios, if the battery swells, leaks, or even catches fire, it will lead to personnel safety issues.

[0034] In response, this application embodiment collects the real-time air pressure of the environment where the power bank is located, determines the type of environment based on the rate of change of the real-time air pressure, and further determines whether to cut off the charging and discharging circuit of the battery module, thereby preventing the safety of objects or people in the surrounding environment.

[0035] In some embodiments, when the rate of change of real-time air pressure is not zero, the environmental category of the environment in which the power bank is located can be high mountains, high-rise elevators, cableways, gliders, aircraft, etc. Therefore, it is necessary to combine the characteristics of the rate of change of air pressure in each scenario to determine whether it is necessary to switch the charging and discharging circuit of the battery module.

[0036] In some embodiments, when the power bank is in a high-altitude environment, the altitude of the power bank changes slowly because people climb mountains at a slow pace. Therefore, if the rate of change in real-time air pressure is small, the environment category of the power bank can be determined to be high-altitude.

[0037] In some embodiments, when the power bank is in a high-rise elevator, cable car, gliding or other similar environment, the altitude of the power bank changes rapidly, resulting in a large rate of change in the detected real-time air pressure. However, this change can usually only be maintained for a short time. Therefore, the environment in which the power bank is located can be identified as a high-rise elevator, cable car, gliding or other similar environment.

[0038] In some embodiments, the target environment category can be that the power bank is inside an aircraft. If the power bank is inside an aircraft, the altitude change of the aircraft during ascent or descent is extremely rapid, much greater than the altitude change in scenarios such as high-rise elevators, cable cars, and gliding, and can be maintained for a relatively long time. Therefore, if a large rate of change in real-time air pressure is detected in the environment where the power bank is located, and this change is maintained for a certain period of time, it can be determined that the power bank is inside an aircraft, thereby cutting off the charging and discharging circuit of the battery module. This excludes short-term, non-continuous, slow pressure drop scenarios such as elevators and high mountains, thus significantly reducing the false positive rate and improving the accuracy of scene recognition.

[0039] For example, if the barometric pressure sensor detects that the air pressure drops by more than 20% within 3 minutes and the downward trend of the air pressure continues to be stable, it will determine that the target environment category has been entered, that is, it will determine that the power bank is in the aircraft and cut off the charging and discharging circuit of the battery module.

[0040] In some embodiments, when an aircraft is in a stable flight phase, the altitude change is minimal, and the rate of change in air pressure around the aircraft is also minimal. However, since the aircraft will only reach a stable flight phase after at least an ascent or descent phase, the air pressure around the aircraft is significantly lower than the standard ground pressure. Therefore, if the rate of change in real-time air pressure in the environment where the power bank is located is very small, and the real-time air pressure is lower than a preset air pressure and remains so for a certain period of time, it is determined that the power bank is in an aircraft in a stable flight phase, and the charging and discharging circuit of the battery module is disconnected.

[0041] In some embodiments, the charging / discharging circuit refers to the circuit path between the battery module in the power bank and external devices used for power transmission. Upon receiving real-time air pressure change rate data, logical judgment is performed to confirm whether the aviation mode conditions are met. When it is determined that the target environment category has been entered, a cut-off command is executed, immediately disconnecting the charging / discharging circuit, preventing the battery module from supplying power or receiving charging. Disconnecting the charging / discharging circuit prevents the battery from undergoing high-power charging and discharging in a high-altitude, low-pressure environment, thereby controlling the electrolyte evaporation rate and reducing the risk of battery swelling, leakage, or even fire. The process of disconnecting the charging / discharging circuit requires no user intervention, achieving automated protection and ensuring the safety of air transport.

[0042] In this embodiment, by independently setting up the first and second accommodating spaces and sealing the first accommodating space, the influence of the battery module's heat generation in the second accommodating space on the real-time air pressure collected by the air pressure sensor in the first accommodating space can be avoided, thereby improving the accuracy of the collected real-time air pressure. Combined with an air pressure change rate judgment mechanism, effective control of charging and discharging behavior in high-altitude environments is achieved. By accurately identifying that the power bank is in an aircraft scenario and cutting off the charging and discharging circuit of the battery module, the safety of the aircraft and its occupants is protected, improving the user experience.

[0043] In some embodiments, the rate of change includes the rate of increase and the rate of decrease. The determination of the environmental category of the environment in which the mobile power supply is located based on the rate of change of real-time air pressure in step S102 includes the following steps S1021 or S1022.

[0044] Step S1021: When the real-time air pressure rise rate is greater than the first preset rate and is maintained for the first preset time, the environment category is determined as the first target environment category; the first target environment category represents the aircraft in which the mobile power supply is in the rising phase.

[0045] In some embodiments, the rate of increase of real-time air pressure refers to the magnitude of the increase in air pressure value per unit time, usually expressed in Pa / s (Pa per second) or kPa / min (kilopascal per minute).

[0046] In some embodiments, the first preset rate is a calibrated rate of change in air pressure, used to determine whether the current air pressure change conforms to the characteristics of the aircraft's ascent phase. For example, during aircraft takeoff, the air pressure inside the aircraft cabin rises rapidly due to the increase in altitude. If the rate of increase in air pressure is detected to reach or exceed the set first preset rate, and continues to reach the set first preset time (e.g., 5 minutes), it can be determined that the power bank is in the aircraft's ascent phase.

[0047] In some embodiments, to reduce the probability of misjudgment caused by instantaneous air pressure fluctuations, the protection mechanism is only triggered when the air pressure continues to rise steadily. The first target environment category indicates that the power bank is in the aircraft's ascent phase. At this moment, the system should activate the high-altitude protection mode and suspend the charging and discharging operation of the power bank to ensure safety.

[0048] In some embodiments, the first preset time can be set to a relatively long time to avoid misjudgment caused by instantaneous air pressure fluctuations, and to avoid misjudging it as an elevator, cable car or other similar scenario.

[0049] In some embodiments, by combining the determination of both the rate of air pressure rise and the duration, this method can effectively distinguish between real aviation scenarios and non-aviation scenarios, significantly reduce the false positive rate, and improve the recognition accuracy.

[0050] Step S1022: If the rate of decrease of real-time air pressure is greater than the second preset rate and is maintained for the second preset time, determine that the mobile power supply is in the second target environment category; the second target environment category indicates that the mobile power supply is in the aircraft during the descent phase.

[0051] In some embodiments, the rate of decrease of real-time air pressure refers to the magnitude of the decrease in air pressure value per unit time.

[0052] In some embodiments, the second preset rate is a calibrated air pressure rate change value used to determine whether the current air pressure change conforms to the characteristics of the aircraft's descent phase. For example, during the aircraft's descent, the cabin air pressure gradually returns to ground level due to the decrease in altitude. If the real-time air pressure decrease rate is detected to be lower than the second preset rate, and this state lasts for a second preset time (e.g., 30 seconds), it can be determined that the power bank is in the aircraft's descent phase.

[0053] In some embodiments, the second preset time is also to reduce the probability of misjudgment caused by instantaneous air pressure fluctuations. The corresponding environmental judgment is only triggered when the air pressure continues to drop rapidly. The second target environment category represents that the power bank is in the aircraft descent phase. In this phase, it is also necessary to disconnect the charging and discharging circuit of the battery module to disable the charging and discharging function of the power bank.

[0054] In some embodiments, it is possible to accurately identify whether the power bank is in the ascent or descent phase of the aircraft, and to implement corresponding protective measures based on the determination result, thereby improving aircraft safety and enhancing the user experience.

[0055] In this embodiment, by introducing the rate and duration of air pressure change as the judgment criteria, instead of using a single air pressure threshold, the method of this embodiment can more accurately identify aviation scenarios and significantly reduce the false judgment rate. This achieves effective control over the charging and discharging behavior of lithium-ion batteries in high-altitude, low-pressure environments and improves the safety of mobile power supplies during air transport.

[0056] In some embodiments, when the rate of change of real-time air pressure is less than a preset rate of change, the above-mentioned determination of the environmental category of the environment where the power bank is located based on the rate of change of real-time air pressure further includes step S1023.

[0057] Step S1023: When the real-time air pressure is lower than the preset air pressure and is maintained for a third preset time, determine that the mobile power supply is in the third target environment category; the third target environment category indicates that the mobile power supply is in an aircraft in a stable flight phase.

[0058] In some embodiments, the third preset time refers to a time threshold used to confirm whether an aviation scenario has been entered, such as 3 minutes. If the air pressure remains below a preset range within the third preset time, the environment in which the device is located can be determined to be the cabin environment during the aircraft's cruise phase. The setting of the third preset time takes into account the time window required for the aircraft to reach its cruise altitude after takeoff, avoiding misjudgment of non-aviation scenarios caused by brief depressurization.

[0059] In some embodiments, when the rate of change of real-time air pressure is less than the preset rate of change, it indicates that the air pressure of the current environment where the power bank is located is close to stable and the altitude of the current environment is close to stable. Therefore, it is necessary to combine the real-time air pressure value to determine whether it is necessary to cut off the charging and discharging circuit of the battery module.

[0060] In some embodiments, a real-time air pressure lower than a preset air pressure indicates that the current ambient air pressure has dropped to near the level inside a high-altitude cabin (e.g., about 0.7-0.8 atm). It is necessary to determine whether the state of real-time air pressure being lower than the preset air pressure has lasted for a certain period of time, and to further determine the environmental category of the environment in which the power bank is located by combining historical air pressure data of the environment in which the power bank is located.

[0061] In the case where the real-time air pressure is lower than the preset air pressure and remains so for a third preset time, in order to avoid misjudgment in scenarios such as the power bank being located at a high altitude, it is also necessary to obtain the historical air pressure data of the environment where the power bank is located. If the historical air pressure data indicates that the rate of change of the historical air pressure of the environment where the power bank is located before the third preset time is greater than the first preset rate or the second preset rate, then the power bank is determined to be in the third target environment category.

[0062] In some embodiments, the third target environment category specifically refers to the internal environment of an aircraft where the power bank is located during a stable flight phase. By combining air pressure data with time conditions, it is possible to more accurately identify whether the device is in an aviation scenario and trigger corresponding charge and discharge protection mechanisms based on the assessment of the aviation scenario, thereby effectively preventing abnormal battery reactions under high air pressure.

[0063] In this embodiment, by introducing a judgment logic based on a third preset time and a third target environment category, it is possible to further verify whether the situation is a real aviation scenario, even if only low air pressure is detected. Introducing this judgment logic reduces the false alarm rate, thereby improving the reliability of safety control and ultimately enhancing users' sense of security during air transport.

[0064] In some embodiments, a temperature sensor is also provided in the second accommodating space, and the protection method for the mobile power supply further includes the following steps S103 and S104.

[0065] Step S103: Detect the real-time temperature of the battery module based on the temperature sensor.

[0066] In some embodiments, temperature sensors are used to monitor surface or internal temperature changes during battery module operation. Temperature sensors typically employ high-precision thermistors or digital temperature chips, providing continuous temperature data. The temperature sensors are usually installed close to the core area of ​​the battery module to accurately capture thermal changes. For example, in air transport scenarios, due to lower cabin pressure, the battery module's heat dissipation capacity decreases; failure to monitor temperature in a timely manner could lead to safety hazards.

[0067] In some embodiments, real-time temperature refers to the actual operating temperature of the battery module at the current moment. By continuously monitoring the real-time temperature, it is possible to dynamically determine whether the internal temperature of the battery module or the temperature of the surrounding environment is approaching or exceeding a set safety threshold, thereby taking corresponding protective measures. The frequency of real-time temperature acquisition is usually adjusted according to the application scenario; for example, a higher frequency can be set in high-risk environments.

[0068] Step S104: When the real-time temperature is higher than the preset temperature, disconnect the charging and discharging circuit of the battery module.

[0069] In some embodiments, the preset temperature is an upper limit value set in advance based on the characteristics of the battery module and the usage environment (such as aviation scenarios). When the real-time temperature is detected to exceed the preset temperature, an overheating risk is determined, and a protection mechanism is triggered.

[0070] In some embodiments, the setting of the preset temperature needs to take into account parameters such as the battery material's tolerance, environmental factors, and the device's heat dissipation capacity. For example, for lithium batteries, the common preset temperature range is between 0 and 50°C.

[0071] In some embodiments, disconnecting the charge / discharge circuit refers to automatically disconnecting the charging or discharging path of the battery module after detecting an abnormal temperature, preventing further energy input or output. Disconnecting the charge / discharge circuit is typically achieved through a relay or MOSFET switch, enabling switching to be completed within milliseconds. After disconnecting the charge / discharge circuit, the user can also be notified of the current status via LED indicators or pop-up windows, improving interactive transparency. The design of disconnecting the charge / discharge circuit ensures battery safety at high temperatures while avoiding over-protection issues caused by misoperation.

[0072] In some embodiments, by setting a temperature sensor in the second accommodating space, the operating temperature of the battery module can be monitored in real time, and the charging and discharging circuit can be cut off in time when the temperature is abnormal. This can effectively prevent safety hazards caused by overheating, thereby improving the overall safety and reliability of the power bank in special environments such as air transport.

[0073] In this embodiment, a temperature sensor enables real-time monitoring and rapid response to the battery module temperature. In practical implementation, the data collected by the temperature sensor is transmitted to the control module for analysis and processing in real time. Once the real-time temperature exceeds a preset temperature, a cutoff mechanism is immediately activated to block the current flow path, thereby preventing thermal runaway or other dangerous situations caused by overheating of the battery module. The entire process features fast response and precise control, making it suitable for applications with high safety requirements, such as aviation transportation.

[0074] In some embodiments, the power bank is also equipped with an emergency button, and the protection method of the power bank further includes the following step S105.

[0075] Step S105: When the charging and discharging circuit of the battery module is cut off, the charging and discharging circuit of the battery module is turned on in response to the trigger event of the emergency button.

[0076] In some embodiments, an emergency button is a physical button located on the casing of the power bank, typically on the side or bottom of the device, for quick activation by the user. The emergency button is connected to the control circuitry inside the power bank; when triggered, it sends a specific signal to the main control chip to activate the emergency bypass logic. Compared to conventional buttons, the design of the emergency button emphasizes durability, prevention of accidental activation, and ease of identification, for example, by using a recessed structure or special color markings.

[0077] In some embodiments, a trigger event refers to a user's action on the emergency button to activate the emergency discharge function. Trigger events can include long presses, double-clicks, swipes, etc. For example, a 5-second long press can be used as a trigger event for the emergency button, avoiding the risk of accidental activation while ensuring the user can reliably activate the emergency function when truly needed.

[0078] In some embodiments, the charging and discharging circuit of the battery module is the core circuit path for energy transfer in the power bank, including a charging input port, a battery module, a discharging output port, and related protection components. Under normal operating conditions, the charging and discharging circuit of the battery module is in a conductive state; however, in aviation mode, the charging and discharging circuit is disconnected via relays or MOSFETs to prevent potential safety risks arising from high-altitude air pressure environments. When an emergency bypass signal is detected, the charging and discharging circuit of the battery module is re-energized, but only a small current output of less than 5W is allowed to avoid interfering with the aircraft environment.

[0079] In some embodiments, the power bank entering aviation mode is characterized by the battery module's charging and discharging circuit being disconnected. Aviation mode refers to an operating mode that restricts the charging and discharging functions of the battery module when the power bank is detected to be entering a high-altitude, low-pressure environment. Real-time air pressure is detected by a barometric pressure sensor, and the decision to automatically disconnect the battery module's charging and discharging circuit is based on this real-time air pressure to prevent abnormal battery overheating or short circuits due to air pressure changes during flight, thereby ensuring aviation safety.

[0080] In some embodiments, when a user boards the plane with a power bank, the power bank enters airplane mode. The LED indicator on the power bank illuminates solid red, and a notification message is sent to the user's connected electronic device via USB, informing the user that the power bank's battery module charging and discharging functions are currently paused. If the user needs to power on their phone due to depleted battery, they can locate the emergency button on the power bank and press and hold it for 5 seconds to trigger the red emergency button event. This briefly deactivates the protection mechanism, allowing the power bank's battery module to partially discharge, providing only the low-power power required to power on the user's phone. After this process, the system automatically returns to airplane mode to prevent subsequent high-power operations.

[0081] In this embodiment, when the power bank detects a high-altitude, low-pressure environment and enters aviation mode, it automatically cuts off the charging and discharging circuit of the power bank's battery module, preventing normal charging and discharging operations. The user can activate the emergency bypass logic by pressing the emergency button and performing a specific trigger event (e.g., pressing and holding for 5 seconds). This allows the charging and discharging circuit of the power bank's battery module to be re-energized under limited conditions, permitting only low-power discharge. After the emergency operation is completed, aviation mode is automatically restored, maintaining a safe state. This process enables flexible emergency handling under aviation safety requirements, improving product usability and user experience.

[0082] In some embodiments, the power bank is further provided with a display module, and when the environment category is the target environment category, the protection method of the power bank further includes step S106 or step S107.

[0083] Step S106: Display a prompt message based on the display module. The prompt message indicates that the power bank has entered high-altitude mode and that the charging and discharging functions of the power bank are disabled.

[0084] In some embodiments, when the environment category is the target environment category, it indicates that the power bank is currently in the aircraft and the power bank's charging and discharging circuit is disconnected, that is, the power bank's charging and discharging function is disabled.

[0085] In some embodiments, a display module refers to a visual output component integrated into the power bank, such as an LED display, an OLED screen, or other types of display modules. The display module is used to communicate the current operating status of the power bank to the user.

[0086] In some embodiments, when a target environment category (such as a low-pressure environment in an aviation scenario) is detected, the display module will switch to a specific high-altitude mode display state, such as a constant red light or flashing at a specific frequency. A constant red light or flashing at a specific frequency indicates that the power bank has entered a protection state and the charging and discharging functions of the power bank have been disabled.

[0087] In some embodiments, the prompt message is information conveyed to the user through a display module to indicate the current safety protection status of the power bank. The prompt message may be text displayed on the display module, such as "Airplane mode detected, charging and discharging functions are disabled"; it may also be an icon representing an aircraft and an icon indicating that charging and discharging is disabled, displayed on the display module to indicate that the user has entered airplane mode. The prompt message may also include voice information to inform the user that they have entered high-altitude mode and that the power bank's charging and discharging functions are disabled.

[0088] In some embodiments, users can quickly identify whether the charging and discharging functions of a power bank are available without complicated settings or uncertain situations, which can effectively avoid erroneous operation and improve the safety of using the power bank.

[0089] Step S107: When the power bank is connected to an external device, send a prompt message to the external device.

[0090] In some embodiments, an external device refers to an electronic device connected to a power bank via a USB interface, a Type-C interface, or other data / power transmission methods, such as a smartphone, tablet, or laptop.

[0091] In some embodiments, when the power bank detects that it is inside an aircraft, it will proactively send a notification message to the connected external device via the USB communication protocol. The external device's operating system typically displays this notification message as a pop-up window, with an example message stating that the external device has entered high-altitude protection mode and has suspended charging and discharging functions.

[0092] In some embodiments, the software interaction mechanism not only enhances the user's awareness of the power bank's status but also allows the user to receive critical safety alerts through connected external devices even when the power bank itself does not have a direct display module. Furthermore, the protection automatically disengages once the air pressure returns to normal after the power bank is landed, and a notification is sent that the high-altitude protection has been deactivated, allowing normal charging and discharging. This further enhances the user experience.

[0093] In some embodiments, by integrating a display module into the power bank and providing a dual prompting mechanism in high-altitude mode, users' awareness of the power bank's status can be effectively improved, thereby avoiding improper operation due to misjudgment or unclear information. At the same time, by communicating with external devices, the coverage of prompting information is further expanded, enabling more users to understand changes in the power bank's behavior in a timely manner, thereby achieving higher security.

[0094] In this embodiment, the system first detects parameters such as ambient air pressure using sensors, and then determines whether the current environment belongs to the target environment category. Once it is confirmed that the current environment belongs to the target environment category, it enters high-altitude mode and sends a local prompt message to the user through the display module. If the power bank is connected to an external device at this time, the prompt message is further synchronized to the external device via the USB communication protocol, thereby constructing a dual-channel information feedback mechanism. The user can obtain the power bank's operating status in real time, thus improving the user experience.

[0095] The following describes an exemplary application of the mobile power bank protection method provided in this application in a real-world scenario.

[0096] Current power bank safety protection primarily focuses on routine electrical faults such as overcharging, over-discharging, and short circuits, without specifically addressing the high-altitude, low-pressure environment of aviation scenarios. During the cruise phase of an aircraft, the cabin pressure is typically maintained at the equivalent pressure of an altitude of 2000-3000 meters (approximately 0.7-0.8 atm). Although this is lower than ground pressure, existing power bank protection circuits cannot recognize this pressure difference and may still charge and discharge normally.

[0097] In low-pressure environments, the electrolyte in lithium-ion batteries evaporates at a faster rate. If charging or discharging is performed under these conditions, the increased battery temperature will further exacerbate electrolyte vaporization, potentially leading to battery swelling, leakage, or even fire, posing a threat to the safety of aircraft passengers and equipment. Current technologies primarily utilize pressure switches for pressure control in industrial equipment and micro-electro-mechanical systems (MEMS) pressure sensors for altitude detection or environmental monitoring. Neither of these technologies integrates with the charging and discharging control logic of portable power banks, thus failing to directly address the specific safety requirements in aviation scenarios.

[0098] Among mainstream passenger aircraft, the cabin pressure changes follow a consistent pattern across different aircraft types, dynamically adjusting with each flight phase and consistently exceeding the civil aviation minimum standard of 750 hPa. Specific phase data are as follows: 1. Ground and Takeoff Phase: On the ground, the cabin pressure is consistent with the outside pressure, approximately one standard atmosphere (1013 hPa). During takeoff and climb, the cabin pressure gradually decreases as the aircraft ascends. For narrow-body aircraft on short-to-medium-haul routes, the cabin altitude change rate during this phase is approximately +500 ft / min, resulting in a stable pressure decrease to prevent passenger discomfort. 2. Cruise Phase: During this phase, the cabin pressure remains stable. Large wide-body aircraft on medium-to-long-haul routes have a cabin pressure of approximately 843 hPa when cruising at 10,300 meters (34,000 feet); narrow-body aircraft on short-to-medium-haul routes typically maintain a cabin altitude of approximately 1,554 meters (5,104 feet) during normal cruise, corresponding to a pressure also above 800 hPa. Airbus aircraft upgraded with the CPCevo system can have an equivalent cabin altitude as low as approximately 1200 meters, resulting in higher air pressure and enhanced comfort. 3. Descent and Landing Phase: Cabin pressure gradually increases as the aircraft descends. For narrow-body aircraft on short-to-medium-haul routes, the cabin altitude descent rate is approximately -400 ft / min, with a gradual change to reduce ear pressure. Upon landing, the cabin pressure returns to approximately one atmosphere (1013 hPa), consistent with the ambient air pressure.

[0099] This application addresses the deficiency of existing power banks in lacking charging and discharging protection in high-altitude, low-pressure environments by providing a protection device and method based on air pressure sensing. By monitoring the ambient air pressure in real time, it automatically prohibits charging and discharging when it identifies the air pressure characteristics of aviation high altitudes, thus ensuring safe use in aviation scenarios.

[0100] In some embodiments, this application triggers a charge / discharge prohibition signal by air pressure sensing, which acts on the lithium protection circuit or main control circuit of the power bank. The air pressure sensing can be achieved by an air pressure switch or by a MEMS air pressure sensor.

[0101] Figure 2 This is a schematic diagram of a protection device based on a pneumatic switch provided in an embodiment of this application, including a pneumatic switch module 201, a signal triggering module 202, and a charge / discharge control module 203.

[0102] Among them, the air pressure switch module 201 adopts an absolute pressure type air pressure switch with a preset pressure threshold of 0.75 atm (corresponding to an altitude of about 2500 meters, matching the high air pressure range inside the passenger aircraft cabin) and a reset pressure of 0.8 atm. The switch has a built-in diaphragm-type sensing element. When the ambient air pressure is lower than 0.75 atm, the diaphragm deforms and drives the contacts to act, outputting a low-level trigger signal.

[0103] Among them, after receiving the trigger signal from the pneumatic switch, the signal trigger module 202 uses a transistor 8050 to convert the trigger signal into a 3.3V high-level signal. After level conversion, it generates a "prohibition signal" (such as a high-level active signal) that conforms to the lithium protection circuit / main control circuit interface standard.

[0104] The charging and discharging control module 203 is connected to the lithium protection chip (such as DW01) of the power bank or the main MCU. After receiving the "prohibition signal", it controls the MOS transistor in the charging and discharging circuit to turn off and cut off the charging and discharging path. When the air pressure rises to above 0.75atm, the air pressure switch is reset, the trigger signal disappears, and the charging and discharging circuit returns to normal.

[0105] Figure 3 This is a schematic diagram of a protection device based on a barometric pressure sensor provided in an embodiment of this application, including a MEMS barometric pressure sensing module 301, a main control MCU module 302, and a charge / discharge control module 303.

[0106] Among them, the MEMS barometric pressure sensing module 301 adopts a digital output MEMS barometric pressure sensor (such as BMP280) to collect ambient absolute barometric pressure data in real time. The sampling frequency is set to 1Hz, and the data is transmitted to the main control MCU module 302 through the I2C / SPI interface.

[0107] The main control MCU module 302 pre-stores the air pressure threshold (0.75 atm) and hysteresis logic (the prohibition is lifted when the pressure rises to 0.8 atm); after receiving the air pressure data, the MCU performs filtering processing, and when the sampling value is lower than 0.75 atm for 3 consecutive times, it is determined to be a high-altitude environment and generates a "charging and discharging prohibition command".

[0108] The charging and discharging control module 303 receives the prohibition command from the MCU and outputs a control signal to the lithium protection circuit or the charging and discharging MOS tube drive circuit to forcibly shut down the charging and discharging circuit. At the same time, it can link the indicator light of the power bank (such as a flashing red light) to indicate "high-altitude protection mode". When the air pressure rises to 0.8 atm and stabilizes for 5 seconds, the MCU cancels the prohibition command and the circuit is restored.

[0109] Figure 4 This is a schematic diagram of the second implementation process of a mobile power bank protection method provided in this application embodiment, which includes the following steps.

[0110] Step S401: Read the air pressure data in a loop.

[0111] In some embodiments, after configuring the sampling parameters of the barometric pressure sensor (e.g., BMP280) (including a sampling rate of 1Hz and oversampling ×4), the barometric pressure data is read cyclically.

[0112] Step S402: Determine whether the air pressure is less than or equal to 0.75 atm.

[0113] Step S403: Output a charge / discharge prohibition command and control the red light to flash.

[0114] Step S404: Determine whether the air pressure is greater than or equal to 0.8 atm.

[0115] Step S405: Output a charge / discharge recovery command and control the red light to turn off.

[0116] Step S406: Maintain the state of prohibition from charging and discharging.

[0117] In this embodiment, barometric pressure sensing is combined with mobile power bank charging and discharging control to accurately match the cabin pressure environment of a passenger aircraft at high altitudes, filling a safety protection gap in aviation scenarios. It employs purely mechanical triggering, requiring no power supply and exhibiting strong anti-interference capabilities; through multiple sampling filters and hysteresis logic, false triggering caused by airflow fluctuations is avoided.

[0118] Traditional barometric pressure protection systems are mostly based on a single threshold trigger, failing to consider the rate of barometric pressure change. This makes them prone to misjudgment in non-aviation scenarios such as elevators and high-altitude areas. Furthermore, they lack intuitive status indicators after triggering and do not have a reserved emergency discharge channel, failing to meet users' low-current power needs in emergency situations. In addition, barometric pressure sensors are susceptible to the heat dissipation of the internal battery, resulting in insufficient detection accuracy and difficulty in detecting subtle changes in air pressure at high altitudes.

[0119] In some embodiments, an auxiliary judgment mechanism for the rate of air pressure change is added to address the core characteristic of "rapid and stable decrease" in air pressure during aviation scenarios. Only when the power bank's built-in air pressure detection module detects a decrease in air pressure exceeding 20% ​​within 3 minutes, and this downward trend remains stable (excluding short-term, non-continuous slow pressure decrease scenarios such as elevators or high mountains), is a charging / discharging prohibition signal triggered. This design reduces the false judgment rate of the protection mechanism to below 1%, significantly improving the accuracy of scene recognition.

[0120] In some embodiments, after the aforementioned air pressure conditions trigger the protection, the power bank activates "aviation mode" and provides feedback to the user in two ways. The power bank's built-in LED indicator switches to the exclusive display state of "aviation mode" (e.g., a solid red light or flashing at a specific frequency) to intuitively indicate the current protection status.

[0121] In some embodiments, a pop-up notification is pushed to a connected external device (such as a mobile phone or tablet) via the device's USB interface. For example, the content is "The device has entered high-altitude protection mode and the charging and discharging function is suspended." When the device lands and the air pressure returns to the normal range, the system automatically deactivates the protection and pushes a pop-up notification to the user again, "High-altitude protection has been deactivated and the charging and discharging function can be used normally," thereby improving the user experience and information transparency.

[0122] In some embodiments, the emergency bypass design balances aviation safety regulations with users' emergency power needs. An "emergency discharge switch" is pre-installed inside the device. After triggering aviation mode protection, the user can temporarily release the charging / discharging restriction by pressing and holding this switch for 5 seconds. This bypass design only supports low-current discharge of <5W (such as for emergency powering on a mobile phone), avoiding the aviation safety risks associated with high-power discharge while addressing the user's core power needs in emergency scenarios.

[0123] In some embodiments, the anti-interference design of the pressure sensor improves the accuracy of high-altitude air pressure detection. The MEMS pressure sensor is designed with an independent cavity and isolation, integrating it into an independent cavity within the device housing. The cavity is sealed with a silicone sealing ring, effectively isolating the sensor from temperature fluctuations caused by internal battery heat dissipation. The detection accuracy of the pressure sensor is improved from ±10Pa to ±2Pa, enabling precise identification of subtle changes in high-altitude air pressure and providing reliable data support for triggering protection mechanisms.

[0124] In this embodiment, a rate judgment mechanism significantly reduces the false alarm rate in non-aviation scenarios, ensuring triggering only in real high-altitude environments. The combination of LED indicators and pop-up prompts allows users to clearly understand device status changes, avoiding operational confusion due to unclear status. The emergency bypass switch, while complying with safety regulations, meets users' emergency power needs, enhancing product practicality. The sensor's anti-interference design improves detection accuracy, providing a stable and accurate data foundation for the entire protection scheme.

[0125] Based on the foregoing embodiments, this application provides a protection device for a mobile power supply. The device includes various units and modules included in each unit, which can be implemented by a processor in a vehicle; of course, it can also be implemented by specific logic circuits. In the implementation process, the processor can be a central processing unit (CPU), a microprocessor unit (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA), etc.

[0126] Figure 5 This is a schematic diagram of the composition structure of a protection device for a power bank provided in an embodiment of this application. The protection device 500 for the power bank includes: a detection module 501 and a cut-off module 502, wherein: the detection module 501 is used to detect the real-time air pressure of the environment where the power bank is located based on a barometric pressure sensor; the real-time air pressure changes with the altitude of the environment where the power bank is located; the cut-off module 502 is used to determine the environmental category of the environment where the power bank is located based on the rate of change of the real-time air pressure, and cut off the charging and discharging circuit of the battery module when the environmental category is the target environmental category.

[0127] In some embodiments, the rate of change includes an ascent rate and a descent rate. The detection module 501 is further configured to determine the environment category as a first target environment category when the real-time air pressure ascent rate is greater than a first preset rate and is maintained for a first preset time; the first target environment category indicates that the mobile power supply is in an aircraft in the ascent phase; and to determine that the mobile power supply is in a second target environment category when the real-time air pressure descent rate is greater than a second preset rate and is maintained for a second preset time; the second target environment category indicates that the mobile power supply is in an aircraft in the descent phase.

[0128] In some embodiments, if the rate of change of real-time air pressure is less than a preset rate of change, the detection module 501 is further configured to determine that the mobile power supply is in a third target environment category if the real-time air pressure is less than the preset air pressure and remains so for a third preset time; the third target environment category indicates that the mobile power supply is in an aircraft during a stable flight phase.

[0129] In some embodiments, a temperature sensor is also provided in the second accommodating space, and the cut-off module 502 is also used to detect the real-time temperature of the battery module based on the temperature sensor; and to cut off the charging and discharging circuit of the battery module when the real-time temperature is greater than the preset temperature.

[0130] In some embodiments, the power bank is also provided with an emergency button, and the protection device 500 of the power bank also includes a conduction module ( Figure 5 (Not shown in the image), a conduction module is used to conduct the charging and discharging circuit of the battery module in response to a trigger event of the emergency button when the charging and discharging circuit of the battery module is cut off.

[0131] In some embodiments, the power bank is further provided with a display module, and when the environment category is the target environment category, the power bank's protection device 500 also includes a prompt module. Figure 5 (Not shown in the image) A prompting module is used to display prompt information based on the display module. The prompt information indicates that the power bank has entered high-altitude mode and that the charging and discharging functions of the power bank are disabled. When the power bank is connected to an external device, the prompt information is sent to the external device.

[0132] The descriptions of the apparatus embodiments above are similar to those of the method embodiments above, and have similar beneficial effects. In some embodiments, the functions or modules included in the apparatus provided in this application can be used to perform the methods described in the method embodiments above. For technical details not disclosed in the apparatus embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0133] It should be noted that, in the embodiments of this application, if the above methods are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, or the parts that contribute to related technologies, can be embodied in the form of software products. These software products are stored in a storage medium and include several instructions to cause a vehicle (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), magnetic disks, or optical disks. Thus, the embodiments of this application are not limited to any specific hardware, software, or firmware, or any combination of hardware, software, and firmware.

[0134] This application provides a computer device including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor executes the program, it implements some or all of the steps in the above-described method.

[0135] This application provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements some or all of the steps in the above-described method. The computer-readable storage medium can be transient or non-transient.

[0136] This application provides a computer program including computer-readable code. When the computer-readable code is run in a vehicle, the processor in the vehicle executes some or all of the steps in the above method. The vehicle also includes a central domain controller, a cockpit domain controller, and a battery, with the battery supplying power to the central domain controller via a hardware port.

[0137] This application provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program. When the computer program is read and executed by a computer, it implements some or all of the steps in the above-described method. This computer program product can be implemented specifically through hardware, software, or a combination thereof. In some embodiments, the computer program product is specifically embodied as a computer storage medium; in other embodiments, the computer program product is specifically embodied as a software product, such as a software development kit (SDK), etc.

[0138] It should be noted that the descriptions of the various embodiments above tend to emphasize the differences between them, while their similarities or commonalities can be referred to interchangeably. The descriptions of the above embodiments of the device, storage medium, computer program, and computer program product are similar to the descriptions of the above method embodiments and have similar beneficial effects. For technical details not disclosed in the embodiments of the device, storage medium, computer program, and computer program product of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0139] Figure 6 This is a schematic diagram of the hardware entity of a power bank provided in an embodiment of this application, such as... Figure 6 As shown, the hardware entity of the power bank 600 includes a first accommodating space 601 and a second accommodating space 602 that are independent of each other. The first accommodating space 601 is a sealed space and a pressure sensor 603 is disposed in the first accommodating space 601. The second accommodating space 602 is disposed in the battery module 604 and the control module 605. The control module 605 is connected to the charging and discharging circuits of the pressure sensor 603 and the battery module 604, respectively. The pressure sensor 603 is used to detect the real-time air pressure of the environment in which the power bank is located. The real-time air pressure changes with the altitude of the environment in which the power bank is located. The control module 605 is used to determine the environmental category of the environment in which the power bank is located based on the rate of change of the real-time air pressure, and cut off the charging and discharging circuit of the battery module when the environmental category is the target environmental category.

[0140] In some embodiments, a temperature sensor 606 is also provided in the second accommodating space 602. The temperature sensor 606 is connected to the control module 605. The temperature sensor 606 is used to detect the real-time temperature of the battery module. The control module 605 is also used to cut off the charging and discharging circuit of the battery module when the real-time temperature is greater than the preset temperature.

[0141] In some embodiments, the housing of the power bank 600 is also provided with an emergency button 607, which is connected to the control module 605. The control module 605 is also used to turn on the charging and discharging circuit of the battery module in response to a trigger event of the emergency button when the charging and discharging circuit of the battery module is cut off.

[0142] In some embodiments, the casing of the power bank 600 is also provided with a display module (not shown in the figure 6). When the environment category is the target environment category, the control module 605 is also used to display a prompt message based on the display module. The prompt message is used to indicate that the power bank has entered high-altitude mode and that the charging and discharging functions of the power bank are disabled. When the power bank is connected to an external device, the prompt message is sent to the external device.

[0143] Figure 7This application provides a hardware entity diagram of a computer device as an embodiment of the present application, such as... Figure 7 As shown, the hardware entity of the computer device 700 includes a processor 701 and a memory 702, wherein the memory 702 stores a computer program that can run on the processor 701, and the processor 701 executes the program to implement the steps in the method of any of the above embodiments.

[0144] The memory 702 stores computer programs that can run on the processor. The memory 702 is configured to store instructions and applications that can be executed by the processor 701. It can also cache data to be processed or already processed (e.g., image data, audio data, voice communication data and video communication data) in the processor 701 and various modules in the computer device 700. It can be implemented by flash memory or random access memory (RAM).

[0145] The processor 701 executes the steps of any of the methods described above when executing a program. The processor 701 typically controls the overall operation of the computer device 700.

[0146] This application provides a computer storage medium that stores one or more programs, which can be executed by one or more processors to implement the steps of the methods described in any of the above embodiments.

[0147] It should be noted that the descriptions of the storage medium and device embodiments above are similar to the descriptions of the method embodiments above, and have similar beneficial effects. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0148] The aforementioned processor can be at least one of the following: Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), Controller, Microcontroller, and Microprocessor. It is understood that other electronic devices can also implement the functions of the aforementioned processor, and this application does not specifically limit the specific implementation.

[0149] The aforementioned computer storage media / memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM), etc.; or it can be various terminals that include one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0150] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above steps / processes do not imply a sequential order of execution; the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above embodiments of this application are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0151] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0152] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0153] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0154] Furthermore, in the various embodiments of this application, all functional units can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in a combination of hardware and software functional units. Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), magnetic disks, or optical disks.

[0155] Alternatively, if the integrated units described above are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence or the part that contributes to related technologies, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a vehicle (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0156] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of this application are included within the scope of protection of this application.

Claims

1. A protection method for a portable power bank, characterized in that, The method is applied to a portable power bank, which includes a first and a second independent housing space. The first housing space is a sealed space and contains a pressure sensor. The second housing space contains a battery module. The real-time air pressure of the environment where the power bank is located is detected by the air pressure sensor; the real-time air pressure changes with the altitude of the environment where the power bank is located. The environmental category of the mobile power supply is determined based on the rate of change of the real-time air pressure, and the charging and discharging circuit of the battery module is cut off when the environmental category is the target environmental category.

2. The method according to claim 1, characterized in that, The rate of change includes an upward rate and a downward rate. Determining the environmental category of the mobile power supply's environment based on the rate of change of the real-time air pressure includes: If the rate of increase of the real-time air pressure is greater than a first preset rate and is maintained for a first preset time, the environmental category is determined to be a first target environmental category; the first target environmental category indicates that the mobile power supply is in the aircraft during the ascent phase. If the rate of decrease of the real-time air pressure is greater than a second preset rate and is maintained for a second preset time, the mobile power source is determined to be in a second target environment category; the second target environment category indicates that the mobile power source is in an aircraft during the descent phase.

3. The method according to claim 2, characterized in that, If the rate of change of the real-time air pressure is less than a preset rate of change, the method further includes: If the real-time air pressure is lower than the preset air pressure and remains so for a third preset time, the mobile power supply is determined to be in a third target environment category; the third target environment category indicates that the mobile power supply is in an aircraft during a stable flight phase.

4. The method according to claim 1, characterized in that, The second accommodating space is also equipped with a temperature sensor, and the method further includes: The real-time temperature of the battery module is detected based on the temperature sensor. If the real-time temperature is higher than the preset temperature, the charging and discharging circuit of the battery module is cut off.

5. The method according to any one of claims 1 to 4, characterized in that, The power bank also has an emergency button, and the method further includes: In the event that the charging and discharging circuit of the battery module is cut off, the charging and discharging circuit of the battery module is turned on in response to a trigger event of the emergency button.

6. The method according to any one of claims 1 to 4, characterized in that, The power bank also includes a display module. When the environment category is the target environment category, the method further includes at least one of the following: The display module displays a prompt message indicating that the power bank has entered high-altitude mode and that the power bank's charging and discharging functions are disabled. When the power bank is connected to an external device, the prompt message is sent to the external device.

7. A protection device for a portable power bank, characterized in that, An application in portable power banks, the portable power bank comprising a first and a second independent housing space, the first housing space being a sealed space and containing a pressure sensor, and the second housing space containing a battery module, the device comprising: The detection module is used to detect the real-time air pressure of the environment where the power bank is located based on the air pressure sensor; the real-time air pressure changes with the altitude of the environment where the power bank is located. The cut-off module is used to determine the environmental category of the environment in which the mobile power supply is located based on the rate of change of the real-time air pressure, and cut off the charging and discharging circuit of the battery module when the environmental category is the target environmental category.

8. A portable power bank, characterized in that, It includes a first and a second independent containing space. The first containing space is a sealed space and contains a pressure sensor. The second containing space contains a battery module and a control module. The control module is connected to the charging and discharging circuits of the pressure sensor and the battery module, respectively. The barometric pressure sensor is used to detect the real-time barometric pressure of the environment in which the power bank is located; the real-time barometric pressure changes with the altitude of the environment in which the power bank is located. The control module is used to determine the environmental category of the environment in which the mobile power supply is located based on the rate of change of the real-time air pressure, and to cut off the charging and discharging circuit of the battery module when the environmental category is the target environmental category.

9. The portable power bank according to claim 8, characterized in that, A temperature sensor is also installed in the second accommodating space, and the temperature sensor is connected to the control module. The temperature sensor is used to detect the real-time temperature of the battery module; The control module is also used to cut off the charging and discharging circuit of the battery module when the real-time temperature is greater than the preset temperature.

10. The portable power bank according to claim 8 or 9, characterized in that, An emergency button is also provided, which is connected to the control module. The control module is also used to, in response to a trigger event of the emergency button, turn on the charging and discharging circuit of the battery module when the charging and discharging circuit of the battery module is cut off.

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