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WO2019037109A1 - 终端设备、适配器、电池安全监控方法和监控系统 - Google Patents

终端设备、适配器、电池安全监控方法和监控系统 Download PDF

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Publication number
WO2019037109A1
WO2019037109A1 PCT/CN2017/099125 CN2017099125W WO2019037109A1 WO 2019037109 A1 WO2019037109 A1 WO 2019037109A1 CN 2017099125 W CN2017099125 W CN 2017099125W WO 2019037109 A1 WO2019037109 A1 WO 2019037109A1
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WO
WIPO (PCT)
Prior art keywords
battery
terminal device
charging
duration
safety monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/099125
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English (en)
French (fr)
Inventor
陈伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Yun Zhong Fei Network Technology Co Ltd
Original Assignee
Shenzhen Yun Zhong Fei Network Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Yun Zhong Fei Network Technology Co Ltd filed Critical Shenzhen Yun Zhong Fei Network Technology Co Ltd
Priority to PCT/CN2017/099125 priority Critical patent/WO2019037109A1/zh
Priority to CN201780035697.8A priority patent/CN109952515A/zh
Priority to EP17913116.4A priority patent/EP3480611B1/en
Priority to US16/226,393 priority patent/US11768244B2/en
Publication of WO2019037109A1 publication Critical patent/WO2019037109A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G01R31/387—Determining ampere-hour charge capacity or SoC
    • G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H02J7/60—
    • H02J7/80—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to the field of terminal equipment technologies, and in particular, to a battery safety monitoring method, a battery safety monitoring system, and a terminal device having the battery safety monitoring system, and an adapter having the battery safety monitoring system.
  • the battery is the source of power for the terminal device, and provides long-term stable power supply for the terminal device such as the mobile phone.
  • the earliest batteries used in mobile terminals are nickel-chromium batteries and nickel-hydrogen batteries, but with the increase of the screen of mobile terminals and the enhancement of functions, the capacity of nickel-chromium batteries and nickel-hydrogen batteries cannot meet the energy demand, and lithium-ion batteries Because of its many advantages, such as high energy density, it can be made lighter and larger in capacity, faster in charge and discharge, and has no memory effect and environmental elements compared with nickel-chromium or nickel-hydrogen batteries. The damage is also minimal, so it has gradually replaced the traditional nickel-chromium battery and nickel-hydrogen battery.
  • the present invention aims to solve at least one of the technical problems in the above-mentioned techniques to some extent.
  • the first object of the present invention is to provide a battery safety monitoring method for judging whether there is an abnormality in the battery by monitoring the duration of the constant voltage charging phase during battery charging, so as to promptly remind and send repairs, thereby avoiding A safety hazard caused by abnormal battery.
  • a second object of the present invention is to provide a non-transitory computer readable storage medium.
  • a third object of the present invention is to provide a battery safety monitoring system.
  • a fourth object of the present invention is to provide a terminal device.
  • a fifth object of the invention is to propose an adapter.
  • a battery safety monitoring method includes the following steps: obtaining a duration of a constant voltage charging phase when a terminal device is charged; and determining whether the duration is greater than or equal to a preset time. If the duration is greater than or equal to the preset time, it is determined that the battery of the terminal device is abnormal.
  • the battery safety monitoring method of the embodiment of the present invention it is determined whether the battery of the terminal device is abnormal by obtaining the duration of the constant voltage charging phase when the terminal device is charged, that is, when the battery is damaged, the battery may occur internally. Short circuit, due to the existence of internal short circuit, there is always leakage current in the damaged battery, so during the charging process of the terminal device, due to the small charging current in the constant voltage charging phase, the charging duration of the damaged battery during the constant voltage charging phase It will increase significantly.
  • the invention can accurately monitor whether the battery is abnormal due to the damage of the battery during the constant voltage charging phase, and can promptly remind and repair when the battery is abnormal. The safety hazard caused by abnormal battery can greatly improve the safety of the terminal equipment.
  • the battery safety monitoring method according to the above embodiment of the present invention may further have the following additional technical features:
  • the terminal device is charged by an adapter, and the terminal device communicates with the adapter, wherein the adapter acquires the duration and determines the duration according to the duration
  • the battery abnormality information is sent to the terminal device, so that the terminal device sends a reminder message that the battery is abnormal.
  • the terminal device acquires the duration, and determines, according to the duration, a reminder message that the battery is abnormal when the battery is abnormal.
  • fault level division is further performed according to the duration, and a corresponding function of the terminal device is restricted according to the fault level.
  • the terminal device supports a first charging mode and a second charging mode, wherein a charging speed of the first charging mode is greater than a charging speed of the second charging mode, wherein, when the terminal device When charging in the first charging mode, the preset time is greater than or equal to 3 minutes; when the terminal device is charging in the second charging mode, the preset time is greater than or equal to 20 minutes.
  • the duration is acquired when the terminal device is in a low power consumption state.
  • a second aspect of the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the battery safety monitoring method described above.
  • the battery by performing the battery safety monitoring method described above, the battery can be accurately monitored by monitoring the duration of the battery during the charging process of the constant voltage during the charging process of the terminal device. Whether there is an abnormality due to damage, when the battery is abnormal, it can be promptly reminded and sent for repair, to avoid the safety hazard caused by abnormal battery, and the safety of the terminal device can be greatly improved.
  • a third aspect of the present invention provides a battery safety monitoring system, including: an obtaining module, configured to acquire a duration of a constant voltage charging phase when the terminal device is charged; and a determining module, configured to determine the Whether the duration is greater than or equal to the preset time; the security monitoring module is configured to determine that the battery of the terminal device is abnormal when the duration is greater than or equal to the preset time.
  • the acquisition module acquires the duration of the constant voltage charging phase when the terminal device is charged, and determines whether the duration is greater than or equal to the preset time by the determination module, and during the duration When the interval is greater than or equal to the preset time, the safety monitoring module determines that the battery of the terminal device is abnormal. That is to say, when the battery is damaged, a short circuit occurs inside the battery. Due to the existence of the internal short circuit, the damaged battery always has leakage current, so that the terminal is present at the terminal.
  • the present invention can monitor the duration of the battery in the constant voltage charging phase. Accurately monitor whether the battery is abnormal due to damage. When the battery is abnormal, it can be promptly reminded and sent for repair, to avoid the safety hazard caused by abnormal battery, and the safety of the terminal device can be greatly improved.
  • the battery safety monitoring system according to the above embodiment of the present invention may further have the following additional technical features:
  • the terminal device when the battery is abnormal, the terminal device also sends a reminder message that the battery is abnormal.
  • the security monitoring module when there is an abnormality in the battery, the security monitoring module further performs fault level division according to the duration, and limits a corresponding function of the terminal device according to the fault level.
  • the terminal device supports a first charging mode and a second charging mode, wherein a charging speed of the first charging mode is greater than a charging speed of the second charging mode, wherein, when the terminal device When charging in the first charging mode, the preset time is greater than or equal to 3 minutes; when the terminal device is charging in the second charging mode, the preset time is greater than or equal to 20 minutes.
  • the acquisition module acquires the duration when the terminal device is in a low power consumption state.
  • a fourth aspect of the present invention provides a terminal device including the above battery safety monitoring system.
  • the terminal device of the embodiment of the present invention through the battery safety monitoring system described above, it is possible to accurately monitor whether the battery is damaged due to the duration of the constant voltage charging phase during the charging process of the terminal device. Abnormal, when the battery is abnormal, it can be promptly reminded and sent for repair, to avoid the safety hazard caused by abnormal battery, which can greatly improve the safety of use.
  • an embodiment of the fifth aspect of the present invention provides an adapter that communicates with the terminal device, the adapter including the battery safety monitoring system described above.
  • the adapter of the embodiment of the present invention through the battery safety monitoring system described above, it is possible to accurately monitor whether the battery is abnormal due to damage during the charging process of the terminal device by monitoring the duration of the battery during the constant voltage charging phase.
  • timely reminding and repairing can be realized to avoid the safety hazard caused by the abnormal battery, and the safety of the terminal device can be greatly improved.
  • FIG. 1 is a flow chart of a battery safety monitoring method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram showing a voltage variation curve and a current curve of a normal battery and an abnormal battery in a constant voltage charging phase according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of reminder information of a mobile terminal according to an embodiment of the present invention.
  • FIG. 4 is a block schematic diagram of a battery safety monitoring system in accordance with an embodiment of the present invention.
  • FIG. 5 is a block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 6 is a block schematic diagram of an adapter in accordance with an embodiment of the present invention.
  • the battery safety monitoring system Before describing the battery safety monitoring method, the battery safety monitoring system, the terminal device having the battery safety monitoring system, and the adapter having the battery safety monitoring system, the battery structure and the presence in the terminal device are described. Security risks.
  • lithium-ion batteries are mainly composed of a battery cell and a battery protection system.
  • the battery cell is called the "heart" of a lithium-ion battery, and contains a positive and negative electrode material, an electrolyte, a separator, and a casing, and the battery is external. Protection System.
  • the positive electrode material of the battery cell is a lithium molecule material such as lithium manganate or lithium cobalt oxide, which determines the energy of the battery, and the negative electrode material is graphite.
  • the separator is placed between the positive and negative electrodes of the battery. Generally speaking, the separator is like a kind of paper, which is folded in a small battery box. The separator is filled with positive and negative materials and electrolyte.
  • the external electric field activates the lithium molecules in the positive electrode material to the negative electrode and stores them in the voids of the graphite carbon structure. The more lithium molecules are driven, the more energy is stored.
  • the lithium ions in the negative electrode are driven to the positive electrode. Lithium ions become lithium molecules in the original cathode material, so that the battery is charged and discharged.
  • the separator is mainly used to completely separate the positive and negative materials of the cell. Once the positive and negative electrodes are in direct contact, the internal short circuit of the battery will occur, which brings certain safety hazards, so the separator should not be too thin. Too thin can easily cause damage to the separator.
  • manufacturers are beginning to look for batteries with higher energy density. For example, by filling more positive and negative materials to increase the energy density of the battery, but in the same volume, the more positive and negative materials are filled, the separator becomes thinner and thinner, and the battery is damaged by external impact or the like. It is easy to cause damage to the separator and it is likely to cause a short circuit.
  • lithium ions may accumulate in the positive and negative electrodes, and when it accumulates, it will produce a crystal branch like the crystal we see a lot of things, and the crystal branch will slowly It becomes longer, and in this process, it is also possible to pierce the separator to cause an internal short circuit of the battery.
  • the so-called fast charge is the process of fast charging the secondary rechargeable battery.
  • the charging process of the battery may include one or more of a trickle charging phase, a constant current charging phase, and a constant voltage charging phase.
  • the current feedback loop can be utilized such that the current entering the battery during the trickle charge phase meets the expected charge current of the battery (eg, the first charge current), for example, when the voltage is below 3.0V, 100mA is used.
  • the charging current precharges the battery.
  • the current feedback loop can be utilized such that the current entering the battery during the constant current charging phase satisfies the magnitude of the charging current expected by the battery (eg, the second charging current, which can be greater than the first charging current), such as
  • the charging current can vary from 0.1 C to several C, where C refers to the battery capacity.
  • standard charging corresponding to the second charging mode
  • fast charging corresponding to the first charging mode
  • Charging is completed in a short time.
  • the voltage feedback loop can be used to make the voltage applied to both ends of the battery during the constant voltage charging phase satisfy the expected charging voltage of the battery, for example, when the battery voltage is equal to 4.2V, enter the constant voltage charging phase, this stage
  • the charging voltage is constant at 4.2V.
  • the charging current will become smaller and smaller.
  • the charging current is less than 100mA, the battery can be judged to be full.
  • the charging current in the constant current charging phase, since the charging current is relatively large, for example, the charging current can be 0.2C to 0.8C, and some can even reach 1C, and the charging process of the battery is an electrochemical reaction process, which is inevitably accompanied by heat.
  • the isolation film is damaged and the internal short circuit of the battery is present, it is easy to generate more heat, the electrolyte is vaporized, and the internal pressure of the battery is increased. Large, when the air pressure reaches a certain level, the strength of the outer casing can not withstand, the outer casing will crack, causing an explosion, and a battery fire will occur when an open flame is encountered.
  • the inventors of the present application have demonstrated that an internal short circuit occurs inside a battery when the battery is subjected to external mechanical damage (for example, crush damage, drop damage, puncture, etc.) based on continuous research and experiments on the battery over the years. Due to the occurrence of internal short circuit, the damaged battery has a certain leakage current during the charging process. Since the charging current in the constant voltage charging phase is small, the charging time of the damaged battery is significantly increased during the constant voltage charging phase.
  • this application proposes an effective safety monitoring method for the abnormality of the battery.
  • terminal device used in the embodiments of the present invention may include, but is not limited to, being configured to be connected via a wire line (such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital Cable, direct cable connection, and/or another data connection/network) and/or via (eg for cellular networks, wireless local area networks (WLANs), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcasts
  • a wire line such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital Cable, direct cable connection, and/or another data connection/network
  • WLANs wireless local area networks
  • digital television networks such as DVB-H networks
  • satellite networks satellite networks
  • AM-FM broadcasts A means for receiving/transmitting a communication signal by a transmitter, and/or a wireless interface of another communication terminal.
  • a terminal configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal”, and/or a “mobile terminal.”
  • mobile terminals include, but are not limited to, satellite or cellular telephones; personal communication system (PCS) terminals that can combine cellular radiotelephone with data processing, fax, and data communication capabilities; can include radiotelephone, pager, Internet/internet access , a web browser, a memo pad, a calendar, and/or a PDA of a global positioning system (GPS) receiver; and conventional laptop and/or palm-sized receivers or other electronic devices including radiotelephone transceivers.
  • PCS personal communication system
  • GPS global positioning system
  • the battery safety monitoring method of the embodiment of the present invention may include the following steps:
  • a trickle charging phase During the charging process of the terminal device, a trickle charging phase, a constant current charging phase, and a constant voltage charging phase are generally included.
  • the voltage feedback loop in the constant voltage charging phase, can be used to make the voltage applied to the two ends of the battery during the constant voltage charging phase satisfy the expected charging voltage of the battery, for example, as shown in FIG. 2, when the battery voltage is equal to 4.35V, Entering the constant voltage charging phase, the charging voltage at this stage is constant at 4.35V.
  • the charging current When the battery is gradually full, the charging current will become smaller and smaller.
  • the preset off charging current for example, 100mA, the battery can be judged to be full.
  • the constant voltage charging phase if there is an abnormality in the battery due to damage, a local internal short circuit will occur inside the battery. Due to the occurrence of internal short circuit, the damaged battery has a certain leakage current in the constant voltage charging phase, and due to the constant voltage charging phase. The charging current is small, so in the constant voltage charging phase, the charging time of the damaged battery will increase significantly, as shown in Figure 2.
  • S2 Determine whether the duration is greater than or equal to the preset time.
  • the battery safety monitoring method of the embodiment of the present invention during the charging process of the terminal device, by monitoring the duration of the battery in the constant voltage charging phase, it is determined whether the battery has its own current consumption due to an internal short circuit, so that the battery can be accurately identified. Is there any abnormality in the battery?
  • the terminal device supports a first charging mode and a second charging mode, wherein a charging speed of the first charging mode is greater than a charging speed of the second charging mode, wherein, when the terminal device When charging in the first charging mode, the preset time is greater than or equal to 3 minutes, for example, may be 8-10 minutes; when the terminal device is charging in the second charging mode, the preset time It is 20 minutes or more, and may be, for example, 30 minutes to 120 minutes.
  • the duration of the constant voltage charging phase may be different, so that the preset time set for the identification of the abnormal battery is also different.
  • the charging speed of the first charging mode is greater than the charging speed of the second charging mode (eg, the charging current of the first charging mode is greater than the charging current of the second charging mode).
  • the second charging mode can be understood as a charging mode with a rated output voltage of 5V and a rated output current of 2.5A or less.
  • D+ and D- in the adapter output port data line can be short-circuited. .
  • the adapter can communicate with the terminal by using D+ and D- in the data line to realize data exchange, that is, the adapter and the terminal can mutually send a fast charging command: the adapter sends a fast charging inquiry command to the terminal, and receives the data.
  • the adapter After the fast charging response command to the terminal, according to the response command of the terminal, the adapter acquires the state information of the terminal, and turns on the first charging mode, and the charging current in the first charging mode can be greater than 2.5A, for example, can reach 4.5A, or even Bigger.
  • the second charging mode is not specifically limited in the embodiment of the present invention, as long as the adapter supports two charging modes, wherein the charging speed (or current) of one charging mode is greater than the charging speed of the other charging mode, the charging speed is slow.
  • the charging mode can be understood as the second charging mode.
  • the charging power in the first charging mode may be greater than or equal to 15 W with respect to the charging power.
  • the duration is acquired when the terminal device is in a low power consumption state. That is to say, when the terminal device is in a low power consumption state, the terminal device consumes a small current and does not interfere with the short circuit leakage current of the abnormal battery, thereby improving the detection accuracy.
  • the low power consumption state may include a black screen standby state, a shutdown state, ie, the battery is in a light load or no load condition.
  • the battery is in no-load condition, which means that the battery is not currently discharged, and there is no external current consumption of the battery (excluding the current consumption caused by the internal short circuit of the battery), for example, the terminal device is in the off state.
  • the battery is in light load condition, which means that the current current consumption of the battery is about 5mA-6mA, and the battery consumes a small amount of current, such as the terminal device is in standby state or the system load is small.
  • the black screen standby state means that the display screen of the terminal device is off, and the background is All applications are closed, leaving only the applications associated with the present invention are turned on. That is to say, when the battery is safely monitored, the terminal device is in a state of almost no power consumption, so that the duration of the acquisition is more accurate, and the display or application power consumption can be avoided, resulting in inaccurate detection. problem.
  • the adapter (such as a charger) converts the AC power provided by the AC power source, for example, 220V AC, and then charges the battery in the terminal device.
  • the terminal device includes a charge management module, such as a charging IC in the mobile terminal, for managing the charging voltage and/or charging current of the battery during charging of the battery.
  • the charge management module has the function of a voltage feedback module and/or has the function of a current feedback module to enable management of the charging voltage and/or charging current of the battery.
  • the terminal device can also communicate with the adapter, and can send the information of the battery to the adapter, and manage the charging voltage and/or the charging current of the battery through the adapter.
  • the battery in the process of charging the battery, the battery can be trickle-charged, and then the battery is subjected to constant current charging and constant voltage charging, wherein when the charging voltage reaches 4.35 V, the constant voltage charging phase is entered.
  • the charging voltage In the constant voltage charging phase, the charging voltage is constant at 4.35V.
  • the charging current When the battery is gradually full, the charging current will become smaller and smaller.
  • the charging current is less than the preset off charging current, for example, 100mA, it can be judged that the battery is full and the battery is entered. The duration of the constant voltage charging phase.
  • the damaged battery has a certain short-circuit self-consumption current, so the duration of the battery entering the constant voltage charging phase will become longer, so that the length of the judgment can be recognized by the length of time. Is there any abnormality in the battery?
  • the detection accuracy can be improved by reducing the preset off charging current. That is, the closer the preset off charging current is to the short circuit leakage current inside the battery, the easier it is to identify whether the battery is damaged. There is an abnormality.
  • the operation of performing monitoring may be performed by the terminal device side or by the adapter side.
  • the adapter when the battery is abnormally monitored by the adapter, the adapter further transmits information to the terminal device by communicating with the terminal device, and the terminal device performs a reminder, or the adapter itself may also provide a reminder, or The terminal device and the adapter simultaneously reminded.
  • the terminal device is charged by an adapter, and the terminal device communicates with the adapter, wherein the adapter acquires the duration, and determines that the battery is abnormal according to the duration Sending battery abnormality information to the terminal device to send reminder information that the battery is abnormal by the terminal device.
  • the terminal device acquires the duration, and determines, according to the duration, a reminder message that the battery is abnormal when the battery is abnormal.
  • the user when it is detected that the battery is abnormal, the user needs to be reminded.
  • you can pass the reminder message "Battery safety message: Dear customer, your battery is currently in an abnormal state due to damage, for your safe use, please go to *** customer service
  • the outlet performs inspection and maintenance, thank you!” Remind the user; as another example, when the user is reminded by the reminder information shown in FIG. 3, the user can also be reminded by flashing the indicator light on the mobile terminal.
  • a faster frequency control indicator emits a red flash; as yet another example, the user can also be alerted by a voice announcement function in the terminal device.
  • fault level division is further performed according to the duration, and a corresponding function of the terminal device is restricted according to the fault level.
  • the internal short circuit of the battery caused by the damage of the battery is different, the degree of damage is different, the degree of internal short circuit is also different, and the current consumption of the corresponding self short circuit is also different.
  • the more serious the damage the more serious the internal short circuit, and the larger the current consumption of the corresponding self-short circuit, so that the duration of the constant voltage charging phase is longer. Therefore, the fault level can be divided according to the length of the duration.
  • the corresponding fault level is general grade, comparative severity grade, severity grade, complete fault grade, and thus can be based on fault.
  • the level limits the corresponding functions of the terminal device.
  • the abnormal battery may be fault-divided by an adapter, and then the fault level information is transmitted to the terminal device to limit the corresponding function of the terminal device.
  • the faulty battery can also be classified by fault level by the terminal device, and then some functions are limited according to the fault level.
  • the smaller the power consumption of the application in the terminal device the smaller the amount of heat generated when the battery is used, for example, only the chat tool is turned on and the video chat is not performed, and the battery power consumption is small.
  • the battery generates less heat, and the battery is less likely to be dangerous.
  • the application consumes a large amount of power, such as watching videos, playing games, etc.
  • the battery consumes a large amount of power, and the battery generates a large amount of heat. It is prone to security incidents.
  • the fault level is a general level, the use of video software, game software, applications, etc., which consumes a large amount of power, is prohibited; if the fault level is a relatively serious level and a severity level, At this time, the entire system is directly prohibited from starting to prevent a safety accident, and the display of the terminal device displays “The battery has a safety hazard, and the system is prohibited from starting. Please go to the customer service outlet of *** for inspection and maintenance, thank you for your cooperation!”, To remind the user; if the fault level is the full fault level, the battery is disabled at this time, the system is shut down, and it cannot be started.
  • the battery safety monitoring method of the embodiment of the present invention it is determined whether there is an abnormality in the battery of the terminal device by acquiring the duration of the constant voltage charging phase when the terminal device is charged, that is, when the battery is damaged, a short circuit occurs inside the battery due to In the presence of an internal short circuit, there is always a leakage current in the damaged battery, so that during the charging process of the terminal device, since the charging current in the constant voltage charging phase is small, the charging duration of the damaged battery is significant during the constant voltage charging phase.
  • the invention can accurately monitor whether the battery is abnormal due to damage by monitoring the duration of the battery during the constant voltage charging phase, and can promptly perform reminding and repairing when the battery is abnormal, to avoid abnormal battery
  • the resulting safety hazard can greatly improve the safety of the terminal equipment.
  • embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the battery safety monitoring method described above.
  • the battery by performing the battery safety monitoring method described above, the battery can be accurately monitored by monitoring the duration of the battery during the charging process of the constant voltage during the charging process of the terminal device. Whether there is an abnormality due to damage, when the battery is abnormal, it can be promptly reminded and sent for repair, to avoid the safety hazard caused by abnormal battery, and the safety of the terminal device can be greatly improved.
  • the battery safety monitoring system 100 of the embodiment of the present invention includes: an acquisition module 110, a determination module 120, and a security monitoring module 130.
  • the obtaining module 110 is configured to obtain a duration of the constant voltage charging phase when the terminal device is charged.
  • a trickle charging phase During the charging process of the terminal device, a trickle charging phase, a constant current charging phase, and a constant voltage charging phase are generally included.
  • the voltage feedback loop in the constant voltage charging phase, can be used to make the voltage applied to the two ends of the battery during the constant voltage charging phase satisfy the expected charging voltage of the battery, for example, as shown in FIG. 2, when the battery voltage is equal to 4.35V, Entering the constant voltage charging phase, the charging voltage at this stage is constant at 4.35V.
  • the charging current When the battery is gradually full, the charging current will become smaller and smaller.
  • the preset off charging current for example, 100mA, the battery can be judged to be full.
  • the constant voltage charging phase if there is an abnormality in the battery due to damage, a local internal short circuit will occur inside the battery. Due to the occurrence of internal short circuit, the damaged battery has a certain leakage current in the constant voltage charging phase, and due to the constant voltage charging phase. The charging current is small, so in the constant voltage charging phase, the charging time of the damaged battery will increase significantly, as shown in Figure 2.
  • the determining module 120 is configured to determine whether the duration is greater than or equal to a preset time.
  • the security monitoring module 130 is configured to determine that the battery of the terminal device is abnormal when the duration is greater than or equal to a preset time.
  • the battery safety monitoring system of the embodiment of the present invention during the charging process of the terminal device, by monitoring the duration of the battery in the constant voltage charging phase, it is determined whether the battery has its own current consumption due to an internal short circuit, so that the battery can be accurately identified. Is there any abnormality in the battery?
  • the terminal device supports a first charging mode and a second charging mode, wherein a charging speed of the first charging mode is greater than a charging speed of the second charging mode, wherein, when the terminal device When charging in the first charging mode, the preset time is greater than or equal to 3 minutes, for example, may be 8-10 minutes; when the terminal device is charging in the second charging mode, the preset time It is 20 minutes or more, and may be, for example, 30 minutes to 120 minutes.
  • the acquisition module 110 acquires the duration when the terminal device is in a low power consumption state. That is to say, when the terminal device is in a low power consumption state, the terminal device consumes a small current and does not interfere with the short circuit leakage current of the abnormal battery, thereby improving the detection accuracy.
  • the low power consumption state may include a black screen standby state, a shutdown state, ie, the battery is in a light load or no load condition.
  • the battery is in no-load condition, which means that the battery is not currently discharged, and there is no external current consumption of the battery (excluding the current consumption caused by the internal short circuit of the battery), for example, the terminal device is in the off state.
  • the battery is in light load condition, which means that the current current consumption of the battery is about 5mA-6mA, and the battery consumes a small amount of current, such as the terminal device is in standby state or the system load is small.
  • the black screen standby state means that the display screen of the terminal device is in the off state, and all applications in the background are closed, and only the application related to the present invention is kept in the open state. That is to say, when the battery is safely monitored, the terminal device is in a state of almost no power consumption, so that the duration of the acquisition is more accurate, and the display or application power consumption can be avoided, resulting in inaccurate detection. problem.
  • the adapter (such as a charger) converts the AC power provided by the AC power source, for example, 220V AC, and then charges the battery in the terminal device.
  • the terminal device includes a charge management module, such as a charging IC in the mobile terminal, for managing the charging voltage and/or charging current of the battery during charging of the battery.
  • the charge management module has the function of a voltage feedback module and/or has the function of a current feedback module to enable management of the charging voltage and/or charging current of the battery.
  • the terminal device can also communicate with the adapter, and can send the information of the battery to the adapter, and manage the charging voltage and/or the charging current of the battery through the adapter.
  • the battery in the process of charging the battery, the battery can be trickle-charged, and then the battery is subjected to constant current charging and constant voltage charging, wherein when the charging voltage reaches 4.35 V, the constant voltage charging phase is entered.
  • the charging voltage In the constant voltage charging phase, the charging voltage is constant at 4.35V.
  • the charging current When the battery is gradually full, the charging current will become smaller and smaller.
  • the charging current is less than the preset off charging current, for example, 100mA, it can be judged that the battery is full and the battery is entered.
  • Constant voltage charging phase Continued time.
  • the damaged battery has a certain short-circuit self-consumption current, so the duration of the battery entering the constant voltage charging phase will become longer, so that the length of the judgment can be recognized by the length of time. Is there any abnormality in the battery?
  • the detection accuracy can be improved by reducing the preset off charging current. That is, the closer the preset off charging current is to the short circuit leakage current inside the battery, the easier it is to identify whether the battery is damaged. There is an abnormality.
  • the operation of performing monitoring may be performed by the terminal device side or by the adapter side.
  • the adapter when the battery is abnormally monitored by the adapter, the adapter further transmits information to the terminal device by communicating with the terminal device, and the terminal device performs a reminder, or the adapter itself may also provide a reminder, or The terminal device and the adapter simultaneously reminded.
  • the terminal device when the terminal device monitors whether the battery is abnormal, the terminal device further transmits information to the adapter by communicating with the adapter to transmit the battery abnormality, and the terminal device itself can also provide a reminder. Or, the terminal device and the adapter simultaneously remind.
  • the terminal device when there is an abnormality in the battery, the terminal device also issues a reminder message that the battery is abnormal.
  • the terminal device can send a reminder message "Battery Security Message: Dear Customer, your battery is currently in an abnormal state due to damage. For your safe use, please go to ** *Customer service outlets for inspection and maintenance, thank you! Remind the user; as another example, when the user is reminded by the reminder information shown in Figure 3, the user can also flash the light on the mobile terminal to the user. Remind, for example, that the indicator light flashes red at a faster frequency; as another example, the user can be alerted by the voice announcement function in the terminal device.
  • the security monitoring module 130 when there is an abnormality in the battery, the security monitoring module 130 further performs fault level division according to the duration, and limits a corresponding function of the terminal device according to the fault level.
  • the security monitoring module 130 can perform fault level division according to the length of the duration.
  • the corresponding fault level is general grade, comparative severity grade, severity grade, complete fault grade, and thus can be based on fault.
  • the level limits the corresponding functions of the terminal device.
  • the abnormal battery may be fault-divided by the adapter side, and then the fault level information is transmitted to the terminal device to limit the corresponding function of the terminal device.
  • the faulty battery can also be classified by fault level by the terminal device side, and then some functions are restricted according to the fault level.
  • the smaller the power consumption of the application in the terminal device the smaller the amount of heat generated when the battery is used, for example, only the chat tool is turned on and the video chat is not performed, and the battery power consumption is small.
  • the battery generates less heat, and the battery is less likely to be dangerous.
  • the application consumes a large amount of power, such as watching videos, playing games, etc.
  • the battery consumes a large amount of power, and the battery generates a large amount of heat. It is prone to security incidents.
  • the fault level is a general level, the use of video software, game software, applications, etc., which consumes a large amount of power, is prohibited; if the fault level is a relatively serious level and a severity level, At this time, the entire system is directly prohibited from starting to prevent a safety accident, and the display of the terminal device displays “The battery has a safety hazard, and the system is prohibited from starting. Please go to the customer service outlet of *** for inspection and maintenance, thank you for your cooperation!”, To remind the user; if the fault level is the full fault level, the battery is disabled at this time, the system is shut down, and it cannot be started.
  • the acquisition module acquires the duration of the constant voltage charging phase when the terminal device is charged, and determines whether the duration is greater than or equal to the preset time by the determination module, and the duration is greater than or equal to the preset.
  • the time safety monitoring module determines that the battery of the terminal device is abnormal. That is to say, when the battery is damaged, a short circuit occurs inside the battery. Due to the existence of the internal short circuit, the damaged battery always has a leakage current, so that during the charging process of the terminal device, Since the charging current in the constant voltage charging phase is small, the charging duration of the damaged battery is significantly increased during the constant voltage charging phase, and the present invention can accurately monitor the battery by monitoring the duration of the battery during the constant voltage charging phase. Whether there is an abnormality due to damage, when the battery is abnormal, it can be promptly reminded and sent for repair, to avoid the safety hazard caused by abnormal battery, and the safety of the terminal device can be greatly improved.
  • an embodiment of the present invention also provides a terminal device 10 including the battery safety monitoring system 100 described above.
  • the battery device can be charged in the terminal device through the battery safety monitoring system described above.
  • the battery safety monitoring system described above.
  • the first embodiment of the present invention provides an adapter 20 for communicating with the terminal device 10, and the adapter 20 includes the battery safety monitoring system 100 described above.
  • the adapter of the embodiment of the present invention through the battery safety monitoring system described above, it is possible to accurately monitor whether the battery is abnormal due to damage during the charging process of the terminal device by monitoring the duration of the battery during the constant voltage charging phase.
  • timely reminding and repairing can be realized to avoid the safety hazard caused by the abnormal battery, and the safety of the terminal device can be greatly improved.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

一种电池安全监控方法，包括以下步骤：获取终端设备充电时在恒压充电阶段的持续时间（S1）；判断所述持续时间是否大于等于预设时间（S2）；如果所述持续时间大于等于预设时间，则判断所述终端设备的电池存在异常（S3）。该电池安全监控方法，通过监控电池在恒压充电阶段的持续时间来判断电池是否存在异常，以便及时提醒和送修，从而避免因电池异常导致的安全隐患。还公开了一种电池安全监控系统、一种终端设备和一种适配器。

Description

终端设备、适配器、电池安全监控方法和监控系统 技术领域
本发明涉及终端设备技术领域，特别涉及一种电池安全监控方法、一种电池安全监控系统以及一种具有该电池安全监控系统的终端设备、一种具有该电池安全监控系统的适配器。
背景技术
电池是终端设备的动力之源，为终端设备例如手机提供长时间稳定供电。最早用于移动终端的电池为镍铬电池和镍氢电池，但是随着移动终端屏幕的增大、功能的增强等，镍铬电池和镍氢电池的容量已经无法满足能量需求，而锂离子电池由于具有较多的优点，例如，能量密度高，所以能够做的比较轻巧且容量比较大，充放电比较快，并且与镍铬、镍氢电池相比，不具有记忆效应，且对环境的元素损害也是最小的，所以逐渐取代了传统的镍铬电池和镍氢电池。
虽然锂离子电池的出现有效解决了电池容量的问题，但是也存在安全性的问题，例如，当锂离子电池受损引起短路时，导致电芯内部产生热，当该热量产生过快时，很可能出现电池起火、炸裂的情况，因此，需要对电池进行安全监测，以防止事故发生。
发明内容
本发明旨在至少在一定程度上解决上述技术中的技术问题之一。为此，本发明的第一个目的在于提出一种电池安全监控方法，通过监控电池充电过程中在恒压充电阶段的持续时间来判断电池是否存在异常，以便及时提醒和送修，从而避免因电池异常导致的安全隐患。
本发明的第二个目的在于提出一种非临时性计算机可读存储介质。
本发明的第三个目的在于提出一种电池安全监控系统。
本发明的第四个目的在于提出一种终端设备。
本发明的第五个目的在于提出一种适配器。
为达到上述目的，本发明第一方面实施例提出的一种电池安全监控方法，包括以下步骤：获取终端设备充电时在恒压充电阶段的持续时间；判断所述持续时间是否大于等于预设时间；如果所述持续时间大于等于预设时间，则判断所述终端设备的电池存在异常。
根据本发明实施例的电池安全监控方法，通过获取终端设备充电时在恒压充电阶段的持续时间来判断终端设备的电池是否存在异常，即言，电池受到损伤时，电池内部会发生 短路，由于内短路的存在，受损电池一直存在着漏电流，这样在终端设备充电过程中，由于恒压充电阶段的充电电流较小，因此在恒压充电阶段，受损电池的充电持续时间就会显著增加，本发明通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
另外，根据本发明上述实施例提出的电池安全监控方法还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述终端设备通过适配器进行充电，所述终端设备与所述适配器之间进行通信，其中，所述适配器获取所述持续时间，并根据所述持续时间判断所述电池存在异常时向所述终端设备发送电池异常信息，以通过所述终端设备发出电池存在异常的提醒信息。
根据本发明的一个实施例，所述终端设备获取所述持续时间，并根据所述持续时间判断所述电池存在异常时发出电池存在异常的提醒信息。
根据本发明的一个实施例，当所述电池存在异常时，还根据所述持续时间进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
根据本发明的一个实施例，所述终端设备支持第一充电模式和第二充电模式，所述第一充电模式的充电速度大于所述第二充电模式的充电速度，其中，当所述终端设备以所述第一充电模式进行充电时，所述预设时间大于等于3分钟；当所述终端设备以所述第二充电模式进行充电时，所述预设时间大于等于20分钟。
根据本发明的一个实施例，当所述终端设备处于低功耗状态时，获取所述持续时间。
为达到上述目的，本发明第二方面实施例提出了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的电池安全监控方法。
根据本发明实施例的非临时性计算机可读存储介质，通过执行上述的电池安全监控方法，在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
为达到上述目的，本发明第三方面实施例提出了一种电池安全监控系统，包括：获取模块，用于获取终端设备充电时在恒压充电阶段的持续时间；判断模块，用于判断所述持续时间是否大于等于预设时间；安全监控模块，用于在所述持续时间大于等于预设时间时判断所述终端设备的电池存在异常。
根据本发明实施例的电池安全监控系统，通过获取模块获取终端设备充电时在恒压充电阶段的持续时间，并通过判断模块判断持续时间是否大于等于预设时间，以及在持续时 间大于等于预设时间时安全监控模块判断终端设备的电池存在异常，即言，电池受到损伤时，电池内部会发生短路，由于内短路的存在，受损电池一直存在着漏电流，这样在终端设备充电过程中，由于恒压充电阶段的充电电流较小，因此在恒压充电阶段，受损电池的充电持续时间就会显著增加，本发明通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
另外，根据本发明上述实施例提出的电池安全监控系统还可以具有如下附加的技术特征：
根据本发明的一个实施例，当所述电池存在异常时，还通过所述终端设备发出电池存在异常的提醒信息。
根据本发明的一个实施例，当所述电池存在异常时，所述安全监控模块还根据所述持续时间进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
根据本发明的一个实施例，所述终端设备支持第一充电模式和第二充电模式，所述第一充电模式的充电速度大于所述第二充电模式的充电速度，其中，当所述终端设备以所述第一充电模式进行充电时，所述预设时间大于等于3分钟；当所述终端设备以所述第二充电模式进行充电时，所述预设时间大于等于20分钟。
根据本发明的一个实施例，当所述终端设备处于低功耗状态时，所述获取模块获取所述持续时间。
为达到上述目的，本发明第四方面实施例提出了一种终端设备，其包括上述的电池安全监控系统。
根据本发明实施例的终端设备，通过上述的电池安全监控系统，能够在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高使用安全性。
为达到上述目的，本发明第五方面实施例提出了一种适配器，所述适配器与所述终端设备之间进行通信，所述适配器包括上述的电池安全监控系统。
根据本发明实施例的适配器，通过上述的电池安全监控系统，能够在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
附图说明
图1为根据本发明实施例的电池安全监控方法的流程图；
图2为根据本发明一个实施例的正常电池与异常电池在恒压充电阶段电压变化曲线和电流变化曲线对比示意图；
图3为根据本发明一个实施例的移动终端的提醒信息的示意图；
图4为根据本发明实施例的电池安全监控系统的方框示意图；
图5为根据本发明实施例的终端设备的方框示意图；
图6为根据本发明实施例的适配器的方框示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在描述本发明实施例提出的电池安全监控方法、电池安全监控系统以及具有该电池安全监控系统的终端设备、具有该电池安全监控系统的适配器之前，先来描述一下终端设备中的电池结构以及存在的安全隐患。
举例来说，锂离子电池主要由电芯和电池保护系统组成，其中，电芯被称为锂离子电池的“心脏”，含有正负极材料、电解液、隔离膜以及外壳，外面是电池的保护系统。电芯的正极材料为锰酸锂、钴酸锂等锂分子的材料，决定着电池的能量，负极材料为石墨。隔离膜设置在电池的正负极之间，通俗来讲，隔离膜就像一种纸，不断折叠在小小的电池盒内，隔离膜里充满了正负极材料和电解液，充电时，外部电场把正极材料里面的锂分子激活赶到负极，存储在石墨碳结构的空隙里，驱赶的锂分子越多，存储的能量就越大；放电时，把负极里的锂离子赶到正极，锂离子又变成了原有正极材料里的锂分子，如此循环往复，实现电池的充放电。
其中，隔离膜主要是用于把电芯的正负极材料完全区隔开来，一旦正负极直接接触，就会发生电池内部短路，从而带来一定的安全隐患，因此隔离膜不能太薄，太薄很容易导致隔离膜损坏。但是，随着消费者对终端设备的更高要求，例如，要求移动终端轻薄、屏幕大以及续航能力强，使得生产厂商开始寻求能量密度更高的电池。例如，通过填充更多的正负极材料来提高电池的能量密度，但是在相同体积下，填充的正负极材料越多，隔离膜就会越来越薄，而电池受到外部撞击等损伤时就很容易导致隔离膜损坏，很可能引起短路。
作为一种示例，当电池受到外界机械损伤例如挤压损伤、跌落损伤、刺破损伤时，由于隔离膜很薄，很容易导致隔离膜损坏而引起正负极间的短路，即所谓的电池内部发生短 路。一旦电池受到过损伤，由于内短路的出现，受损电池将一直存在着漏电流。
其中，电池在受到外界机械损伤时，大多都是轻微损伤，这样引起内部短路的电池一般很难识别出来，对外表现的还是正常电池，但这种因受损而存在内部电路的电池又会带来一定的安全隐患。
作为又一种示例，在电池充放电过程中，锂离子可能在正负极产生堆积，产生堆积的时候，它会像我们看到很多东西生成晶体一样，产生一种晶枝，该晶枝会慢慢变长，在这个过程中，也可能刺穿隔离膜导致电池内部短路发生。
一旦短路存在，在电池使用过程中，电芯内部将会产生大量的热，该热量会使电芯内部的电解液产生气化，当热量产生过快时，气化过程就会很快，电芯内部气压就会增大，当气压达到一定程度时，外壳的强度承受不了，外壳就会崩裂，引起爆炸，当遇到明火时还会发生电池起火。
另外，除了能量密度越来越高，使得隔离膜越来越薄，导致隔离膜易损坏，进而导致安全事故发生之外，快充也是电池存在安全隐患的主要原因之一。
所谓快充，顾名思义，就是对二次可充放电池的快速充电的过程。举例来说，电池的充电过程可包括涓流充电阶段、恒流充电阶段和恒压充电阶段中的一个或者多个。在涓流充电阶段，可利用电流反馈环使得在涓流充电阶段进入到电池的电流满足电池所预期的充电电流大小(譬如第一充电电流)，例如，当电压低于3.0V时，采用100mA的充电电流对电池进行预充电。在恒流充电阶段，可利用电流反馈环使得在恒流充电阶段进入电池的电流满足电池所预期的充电电流大小(譬如第二充电电流，该第二充电电流可大于第一充电电流)，例如，根据不同的电池该充电电流可以从0.1C到几C不等，其中C是指电池容量。通常在这个阶段，标准充电(对应第二充电模式)是采用0.1C的充电电流进行充电，而快速充电(对应第一充电模式)就是指在这个阶段用大于0.1C的电流进行充电，以在短时间内完成充电。在恒压充电阶段，可利用电压反馈环使得在恒压充电阶段加载到电池两端的电压满足电池所预期的充电电压大小，例如，当电池电压等于4.2V时，进入恒压充电阶段，这个阶段的充电电压恒定为4.2V，当电池逐渐充满时，充电电流会越来越小，当充电电流小于100mA时，即可判断电池充满。
其中，在恒流充电阶段，由于充电电流比较大，如充电电流可以为0.2C～0.8C，有的甚至可达到1C，并且电池的充电过程是一个电化学反应的过程，必然伴随着热量的产生，并且充电电流越大，短时间内产生的热量越多，当隔离膜出现损伤而造成电池局部内短路存在时，很容易产生更多的热量，电解液发生气化，电芯内部气压增大，当气压达到一定程度时，外壳的强度承受不了，外壳就会崩裂，引起爆炸，当遇到明火时还会发生电池起火。
也就是说，一旦电池存在内部短路的现象，就说明电池是存在异常的，此时电池也就 存在一定的安全隐患，在使用过程中就可能引起安全事故发生。
本申请的发明人基于多年来对电池的不断研究和实验，证明当电池受到外界机械损伤(例如挤压损伤、跌落损伤、刺破等)时，电池内部会发生内短路。由于内短路的出现，受损电池在充电过程中同时存在一定的漏电流，由于恒压充电阶段的充电电流较小，因此，在恒压充电阶段，受损电池的充电时间会显著增加。
正是基于此发现以及大量实验验证，为了能够有效监测电池是否因受到损伤而存在异常，防止电池存在安全隐患，进而防止安全事故发生，本申请针对电池是否存在异常提出了有效的安全监控方法。
下面参照附图来描述根据本发明实施例提出的电池安全监控方法、电池安全监控系统以及终端设备、适配器。
需要说明的是，本发明实施例中所使用到的“终端设备”可包括，但不限于被设置成经由有线线路连接(如经由公共交换电话网络(PSTN)、数字用户线路(DSL)、数字电缆、直接电缆连接，以及/或另一数据连接/网络)和/或经由(例如，针对蜂窝网络、无线局域网(WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器，以及/或另一通信终端的)无线接口接收/发送通信信号的装置。被设置成通过无线接口通信的终端可以被称为“无线通信终端”、“无线终端”以及/或“移动终端”。移动终端的示例包括，但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。
图1为根据本发明实施例的电池安全监控方法的流程图。如图1所示，本发明实施例的电池安全监控方法可包括以下步骤：
S1，获取终端设备充电时在恒压充电阶段的持续时间。
在终端设备的充电过程中，一般包括涓流充电阶段、恒流充电阶段和恒压充电阶段。其中，在恒压充电阶段，可利用电压反馈环使得在恒压充电阶段加载到电池两端的电压满足电池所预期的充电电压大小，例如，如图2所示，当电池电压等于4.35V时，进入恒压充电阶段，这个阶段的充电电压恒定为4.35V，当电池逐渐充满时，充电电流会越来越小，当充电电流小于预设的截止充电电流例如100mA时，即可判断电池充满。
在恒压充电阶段，如果电池因受损存在异常时，电池内部会产生局部内短路，由于内短路的出现，受损电池在恒压充电阶段同时存在一定的漏电流，并且由于恒压充电阶段的充电电流较小，因此，在恒压充电阶段，受损电池的充电时间会显著增加，具体如图2所示。
S2，判断持续时间是否大于等于预设时间。
S3，如果持续时间大于等于预设时间，则判断终端设备的电池存在异常。
因此，本发明实施例的电池安全监控方法，在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间来判断电池是否因内部短路而存在自身耗电流，从而可以精确识别到电池是否存在异常。
根据本发明的一个实施例，所述终端设备支持第一充电模式和第二充电模式，所述第一充电模式的充电速度大于所述第二充电模式的充电速度，其中，当所述终端设备以所述第一充电模式进行充电时，所述预设时间大于等于3分钟，例如可以是8-10分钟；当所述终端设备以所述第二充电模式进行充电时，所述预设时间大于等于20分钟，例如可以是30分钟-120分钟。
也就是说，在终端设备以不同充电模式进行充电时，在恒压充电阶段的持续时间可以不同，从而针对异常电池进行识别而设置的预设时间也不同。具体地，第一充电模式的充电速度大于第二充电模式的充电速度(例如，第一充电模式的充电电流大于第二充电模式的充电电流)。一般而言，第二充电模式可以理解为额定输出电压为5V，额定输出电流小于等于2.5A的充电模式，此外，在第二充电模式下，适配器输出端口数据线中的D+和D-可以短路。而第一充电模式下适配器可以利用数据线中的D+和D-与终端进行通信以实现数据交换，即适配器与终端之间可相互发送快速充电指令：适配器向终端发送快速充电询问指令，在接收到终端的快速充电应答指令后，根据终端的应答指令，适配器获取到终端的状态信息，开启第一充电模式，第一充电模式下的充电电流可以大于2.5A，例如，可以达到4.5A，甚至更大。但本发明实施例对第二充电模式不作具体限定，只要适配器支持两种充电模式，其中一种充电模式的充电速度(或电流)大于另一种充电模式的充电速度，则充电速度较慢的充电模式就可以理解为第二充电模式。相对充电功率而言，第一充电模式下的充电功率可大于等于15W。
根据本发明的一个实施例，当所述终端设备处于低功耗状态时，获取所述持续时间。即言，在终端设备处于低功耗状态时，终端设备耗电流很小，不会对异常电池的短路漏电流造成干扰，从而可以提高检测准确性。
在本发明的实施例中，低功耗状态可包括黑屏待机状态、关机状态，即电池处于轻载或空载状况。其中，电池处于空载状况，是指电池当前没有放电，没有电池外部耗电流(不包括电池内部短路引起的自身耗电流)，例如终端设备处于关机状态。电池处于轻载状况，是指电池当前耗电流大概在5mA-6mA左右，电池耗电流很小，例如终端设备处于待机状态、或者系统负载很小的状态。
进一步需要说明的是，黑屏待机状态是指终端设备的显示屏处于熄灭状态，并且后台 所有应用程序均关闭，仅保留与本发明相关的应用程序处于开启状态。也就是说，在对电池进行安全监控时，让终端设备处于一种几乎无功耗的状态下，这样获取的持续时间更为准确，可以避免显示屏或者应用程序耗电而导致检测不准确的问题。
通常交流电源供电时，大多数设备都无法直接使用交流电工作，而是通过适配器(如充电器)对交流电源提供的交流电例如220V的交流电进行转换后，再给终端设备中的电池充电。
作为一种示例，终端设备包括充电管理模块，例如移动终端中的充电IC，在电池的充电过程中，用于对电池的充电电压和/或充电电流进行管理。该充电管理模块具有电压反馈模块的功能，和/或，具有电流反馈模块的功能，以实现对电池的充电电压和/或充电电流的管理。同时终端设备还可与适配器进行通信，可将电池的信息发送给适配器，通过适配器对电池的充电电压和/或充电电流进行管理。
例如，在对电池充电的过程中，开始可对电池进行涓流充电，然后再对电池进行恒流充电和恒压充电，其中，当充电电压达到如4.35V时，进入恒压充电阶段。在恒压充电阶段，充电电压恒定为4.35V，当电池逐渐充满时，充电电流会越来越小，当充电电流小于预设的截止充电电流例如100mA时，即可判断电池充满，获取电池进入恒压充电阶段的持续时间。
其中，如果电池受到损伤而存在异常，受损电池由于自身存在一定的短路自耗电流，因此，电池进入恒压充电阶段的持续时间会变长，这样通过判断持续时间的长短就可以识别到电池是否存在异常。
在本发明的实施例中，可通过减小预设的截止充电电流来提高检测准确性，即言，预设的截止充电电流越接近电池内部的短路漏电流，越容易识别出电池是否因损伤而存在异常。
可以理解的是，执行监控的操作可以是由终端设备侧完成，也可以是由适配器侧完成。其中，通过适配器对电池是否异常进行监控时，适配器还通过与终端设备进行通信以将监控到电池异常的信息发送给终端设备，由终端设备进行提醒，或者，适配器本身也可以进行提醒，又或者，终端设备和适配器同时进行提醒。
作为一个示例，所述终端设备通过适配器进行充电，所述终端设备与所述适配器之间进行通信，其中，所述适配器获取所述持续时间，并根据所述持续时间判断所述电池存在异常时向所述终端设备发送电池异常信息，以通过所述终端设备发出电池存在异常的提醒信息。
作为另一个示例，所述终端设备获取所述持续时间，并根据所述持续时间判断所述电池存在异常时发出电池存在异常的提醒信息。
举例来说，当监测到电池当前存在异常时，需要对用户进行提醒。作为一种示例，如图3所示，可通过提醒信息“电池安全消息：尊敬的客户，目前您的电池由于受损而处于异常状态，为了您的安全使用，请您到***的客服网点进行检测维修，谢谢！”对用户进行提醒；作为又一种示例，在通过图3所示的提醒信息对用户进行提醒时，还可通过移动终端上的指示灯闪烁来对用户进行提醒，例如，以较快的频率控制指示灯发出红光闪烁；作为又一种示例，还可以通过终端设备中的语音播报功能对用户进行提醒。
一般情况下，当用户看到上述提醒信息时，会及时到相应客服网点进行检测维修，但是也有些用户在看到该消息时，并不清楚问题的严重性，所以很可能将该消息进行忽略，并继续正常使用，所以此时可对用户进行多次提醒，例如，可以对用户进行至少三次提醒。而如果多次提醒后用户仍未进行处理，此时可限制终端设备的某些功能。
根据本发明的一个实施例，当所述电池存在异常时，还根据所述持续时间进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
可以理解的是，电池因受损而出现的电池内部局部短路，损伤程度不同，内部短路的程度也不一样，对应的自身短路耗电流也不相同。一般，损伤程度越严重，内部短路的程度越严重，对应的自身短路耗电流也就越大，从而在恒压充电阶段的持续时间就越长。因此，可根据所述持续时间的长短进行故障等级划分。
例如，可根据电池受损程度划分为一般受损、比较严重受损、严重受损、电池失效，其对应的故障等级为一般等级、比较严重等级、严重等级、完全故障等级，进而可根据故障等级对终端设备的相应功能进行限制。
在本发明的一个实施例中，可以通过适配器来对异常电池进行故障等级划分，然后将故障等级信息发送给终端设备，以对终端设备的相应功能进行限制。
在本发明的另一个实施例中，也可以通过终端设备来对异常电池进行故障等级划分，然后根据故障等级限制一些功能。
举例而言，通常情况下，终端设备中的应用程序的耗电量越小，在电池使用时，发热量就会小，例如仅开启聊天工具且未进行视频聊天，此时电池耗电量小，电池发热量少，电池发生危险的可能性相对较小，而当应用程序的耗电量比较大时，例如观看视频、玩游戏等，此时电池耗电量大，电池发热量大，很容易发生安全事故，因此，当判断电池存在异常时，如果故障等级为一般等级，禁止耗电量大的视频软件、游戏软件、应用程序等的使用；如果故障等级为比较严重等级和严重等级，此时直接禁止整个系统启动，以防止发生安全事故，并在终端设备的显示屏上显示“电池存在安全隐患，禁止系统启动，请到***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒；如果故障等级为完全故障等级，此时电池失效，系统关机，并无法启动。
另外，由于电池充电过程中也会产生热，尤其是在快充的状态下，短时间内产生的热量更多，因此在判断电池存在异常时，还禁止对电池进行快速充电，严重的情况下禁止用户对电池充电，以防止发生安全事故，并在终端设备的显示屏上显示“由于电池受损，因此禁止对电池进行充电，还请***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒。
根据本发明实施例的电池安全监控方法，通过获取终端设备充电时在恒压充电阶段的持续时间来判断终端设备的电池是否存在异常，即言，电池受到损伤时，电池内部会发生短路，由于内短路的存在，受损电池一直存在着漏电流，这样在终端设备充电过程中，由于恒压充电阶段的充电电流较小，因此在恒压充电阶段，受损电池的充电持续时间就会显著增加，本发明通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
另外，本发明的实施例还提出了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的电池安全监控方法。
根据本发明实施例的非临时性计算机可读存储介质，通过执行上述的电池安全监控方法，在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
图4为根据本发明实施例的电池安全监控系统的方框示意图。如图4所示，本发明实施例的电池安全监控系统100包括：获取模块110、判断模块120和安全监控模块130。
获取模块110用于获取终端设备充电时在恒压充电阶段的持续时间。
在终端设备的充电过程中，一般包括涓流充电阶段、恒流充电阶段和恒压充电阶段。其中，在恒压充电阶段，可利用电压反馈环使得在恒压充电阶段加载到电池两端的电压满足电池所预期的充电电压大小，例如，如图2所示，当电池电压等于4.35V时，进入恒压充电阶段，这个阶段的充电电压恒定为4.35V，当电池逐渐充满时，充电电流会越来越小，当充电电流小于预设的截止充电电流例如100mA时，即可判断电池充满。
在恒压充电阶段，如果电池因受损存在异常时，电池内部会产生局部内短路，由于内短路的出现，受损电池在恒压充电阶段同时存在一定的漏电流，并且由于恒压充电阶段的充电电流较小，因此，在恒压充电阶段，受损电池的充电时间会显著增加，具体如图2所示。
判断模块120用于判断所述持续时间是否大于等于预设时间。安全监控模块130用于在所述持续时间大于等于预设时间时判断所述终端设备的电池存在异常。
因此，本发明实施例的电池安全监控系统，在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间来判断电池是否因内部短路而存在自身耗电流，从而可以精确识别到电池是否存在异常。
根据本发明的一个实施例，所述终端设备支持第一充电模式和第二充电模式，所述第一充电模式的充电速度大于所述第二充电模式的充电速度，其中，当所述终端设备以所述第一充电模式进行充电时，所述预设时间大于等于3分钟，例如可以是8-10分钟；当所述终端设备以所述第二充电模式进行充电时，所述预设时间大于等于20分钟，例如可以是30分钟-120分钟。
根据本发明的一个实施例，当所述终端设备处于低功耗状态时，获取模块110获取所述持续时间。即言，在终端设备处于低功耗状态时，终端设备耗电流很小，不会对异常电池的短路漏电流造成干扰，从而可以提高检测准确性。
在本发明的实施例中，低功耗状态可包括黑屏待机状态、关机状态，即电池处于轻载或空载状况。其中，电池处于空载状况，是指电池当前没有放电，没有电池外部耗电流(不包括电池内部短路引起的自身耗电流)，例如终端设备处于关机状态。电池处于轻载状况，是指电池当前耗电流大概在5mA-6mA左右，电池耗电流很小，例如终端设备处于待机状态、或者系统负载很小的状态。
进一步需要说明的是，黑屏待机状态是指终端设备的显示屏处于熄灭状态，并且后台所有应用程序均关闭，仅保留与本发明相关的应用程序处于开启状态。也就是说，在对电池进行安全监控时，让终端设备处于一种几乎无功耗的状态下，这样获取的持续时间更为准确，可以避免显示屏或者应用程序耗电而导致检测不准确的问题。
通常交流电源供电时，大多数设备都无法直接使用交流电工作，而是通过适配器(如充电器)对交流电源提供的交流电例如220V的交流电进行转换后，再给终端设备中的电池充电。
作为一种示例，终端设备包括充电管理模块，例如移动终端中的充电IC，在电池的充电过程中，用于对电池的充电电压和/或充电电流进行管理。该充电管理模块具有电压反馈模块的功能，和/或，具有电流反馈模块的功能，以实现对电池的充电电压和/或充电电流的管理。同时终端设备还可与适配器进行通信，可将电池的信息发送给适配器，通过适配器对电池的充电电压和/或充电电流进行管理。
例如，在对电池充电的过程中，开始可对电池进行涓流充电，然后再对电池进行恒流充电和恒压充电，其中，当充电电压达到如4.35V时，进入恒压充电阶段。在恒压充电阶段，充电电压恒定为4.35V，当电池逐渐充满时，充电电流会越来越小，当充电电流小于预设的截止充电电流例如100mA时，即可判断电池充满，获取电池进入恒压充电阶段的持 续时间。
其中，如果电池受到损伤而存在异常，受损电池由于自身存在一定的短路自耗电流，因此，电池进入恒压充电阶段的持续时间会变长，这样通过判断持续时间的长短就可以识别到电池是否存在异常。
在本发明的实施例中，可通过减小预设的截止充电电流来提高检测准确性，即言，预设的截止充电电流越接近电池内部的短路漏电流，越容易识别出电池是否因损伤而存在异常。
可以理解的是，执行监控的操作可以是由终端设备侧完成，也可以是由适配器侧完成。其中，通过适配器对电池是否异常进行监控时，适配器还通过与终端设备进行通信以将监控到电池异常的信息发送给终端设备，由终端设备进行提醒，或者，适配器本身也可以进行提醒，又或者，终端设备和适配器同时进行提醒。
作为一个示例，通过终端设备对电池是否异常进行监控时，终端设备还通过与适配器进行通信以将监控到电池异常的信息发送给适配器，由适配器进行提醒，或者，终端设备本身也可以进行提醒，又或者，终端设备和适配器同时进行提醒。
根据本发明的一个实施例，当电池存在异常时，还通过所述终端设备发出电池存在异常的提醒信息。
举例来说，当监测到电池当前存在异常时，需要对用户进行提醒。作为一种示例，如图3所示，可通过终端设备发出提醒信息“电池安全消息：尊敬的客户，目前您的电池由于受损而处于异常状态，为了您的安全使用，请您到***的客服网点进行检测维修，谢谢！”对用户进行提醒；作为又一种示例，在通过图3所示的提醒信息对用户进行提醒时，还可通过移动终端上的指示灯闪烁来对用户进行提醒，例如，以较快的频率控制指示灯发出红光闪烁；作为又一种示例，还可以通过终端设备中的语音播报功能对用户进行提醒。
一般情况下，当用户看到上述提醒信息时，会及时到相应客服网点进行检测维修，但是也有些用户在看到该消息时，并不清楚问题的严重性，所以很可能将该消息进行忽略，并继续正常使用，所以此时可对用户进行多次提醒，例如，可以对用户进行至少三次提醒。而如果多次提醒后用户仍未进行处理，此时可限制终端设备的某些功能。
根据本发明的一个实施例，当所述电池存在异常时，安全监控模块130还根据所述持续时间进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
可以理解的是，电池因受损而出现的电池内部局部短路，损伤程度不同，内部短路的程度也不一样，对应的自身短路耗电流也不相同。一般，损伤程度越严重，内部短路的程度越严重，对应的自身短路耗电流也就越大，从而在恒压充电阶段的持续时间越长。因此，安全监控模块130可根据所述持续时间的长短进行故障等级划分。
例如，可根据电池受损程度划分为一般受损、比较严重受损、严重受损、电池失效，其对应的故障等级为一般等级、比较严重等级、严重等级、完全故障等级，进而可根据故障等级对终端设备的相应功能进行限制。
在本发明的一个实施例中，可以通过适配器侧来对异常电池进行故障等级划分，然后将故障等级信息发送给终端设备，以对终端设备的相应功能进行限制。
在本发明的另一个实施例中，也可以通过终端设备侧来对异常电池进行故障等级划分，然后根据故障等级限制一些功能。
举例而言，通常情况下，终端设备中的应用程序的耗电量越小，在电池使用时，发热量就会小，例如仅开启聊天工具且未进行视频聊天，此时电池耗电量小，电池发热量少，电池发生危险的可能性相对较小，而当应用程序的耗电量比较大时，例如观看视频、玩游戏等，此时电池耗电量大，电池发热量大，很容易发生安全事故，因此，当判断电池存在异常时，如果故障等级为一般等级，禁止耗电量大的视频软件、游戏软件、应用程序等的使用；如果故障等级为比较严重等级和严重等级，此时直接禁止整个系统启动，以防止发生安全事故，并在终端设备的显示屏上显示“电池存在安全隐患，禁止系统启动，请到***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒；如果故障等级为完全故障等级，此时电池失效，系统关机，并无法启动。
另外，由于电池充电过程中也会产生热，尤其是在快充的状态下，短时间内产生的热量更多，因此在判断电池存在异常时，还禁止对电池进行快速充电，严重的情况下禁止用户对电池充电，以防止发生安全事故，并在终端设备的显示屏上显示“由于电池受损，因此禁止对电池进行充电，还请***的客服网点进行检测维修，谢谢配合！”，以对用户进行提醒。
根据本发明实施例的电池安全监控系统，通过获取模块获取终端设备充电时在恒压充电阶段的持续时间，并通过判断模块判断持续时间是否大于等于预设时间，以及在持续时间大于等于预设时间时安全监控模块判断终端设备的电池存在异常，即言，电池受到损伤时，电池内部会发生短路，由于内短路的存在，受损电池一直存在着漏电流，这样在终端设备充电过程中，由于恒压充电阶段的充电电流较小，因此在恒压充电阶段，受损电池的充电持续时间就会显著增加，本发明通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
如图5所示，本发明的实施例还提出了一种终端设备10，其包括上述的电池安全监控系统100。
根据本发明实施例的终端设备，通过上述的电池安全监控系统，能够在终端设备的充 电过程中，通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高使用安全性。
如图6所示，本发明第实施例提出了一种适配器20，适配器20与终端设备10之间进行通信，适配器20包括上述的电池安全监控系统100。
根据本发明实施例的适配器，通过上述的电池安全监控系统，能够在终端设备的充电过程中，通过监控电池在恒压充电阶段的持续时间就能准确地监测到电池是否因受损而存在异常，在监测到电池存在异常时可实现及时进行提醒和送修，避免因电池异常导致的安全隐患，可大大提高终端设备使用时的安全性。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述 不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例 进行变化、修改、替换和变型。

Claims (14)

  1. 一种电池安全监控方法，其特征在于，包括以下步骤：
    获取终端设备充电时在恒压充电阶段的持续时间；
    判断所述持续时间是否大于等于预设时间；
    如果所述持续时间大于等于预设时间，则判断所述终端设备的电池存在异常。
  2. 如权利要求1所述的电池安全监控方法，其特征在于，所述终端设备通过适配器进行充电，所述终端设备与所述适配器之间进行通信，其中，所述适配器获取所述持续时间，并根据所述持续时间判断所述电池存在异常时向所述终端设备发送电池异常信息，以通过所述终端设备发出电池存在异常的提醒信息。
  3. 如权利要求1所述的电池安全监控方法，其特征在于，所述终端设备获取所述持续时间，并根据所述持续时间判断所述电池存在异常时发出电池存在异常的提醒信息。
  4. 如权利要求1-3中任一项所述的电池安全监控方法，其特征在于，当所述电池存在异常时，还根据所述持续时间进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
  5. 如权利要求1所述的电池安全监控方法，其特征在于，所述终端设备支持第一充电模式和第二充电模式，所述第一充电模式的充电速度大于所述第二充电模式的充电速度，其中，
    当所述终端设备以所述第一充电模式进行充电时，所述预设时间大于等于3分钟；
    当所述终端设备以所述第二充电模式进行充电时，所述预设时间大于等于20分钟。
  6. 如权利要求1所述的电池安全监控方法，其特征在于，当所述终端设备处于低功耗状态时，获取所述持续时间。
  7. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1-6中任一项所述的电池安全监控方法。
  8. 一种电池安全监控系统，其特征在于，包括：
    获取模块，用于获取终端设备充电时在恒压充电阶段的持续时间；
    判断模块，用于判断所述持续时间是否大于等于预设时间；
    安全监控模块，用于在所述持续时间大于等于预设时间时判断所述终端设备的电池存在异常。
  9. 如权利要求8所述的电池安全监控系统，其特征在于，当所述电池存在异常时，还通过所述终端设备发出电池存在异常的提醒信息。
  10. 如权利要求8或9所述的电池安全监控系统，其特征在于，当所述电池存在异常 时，所述安全监控模块还根据所述持续时间进行故障等级划分，并根据所述故障等级对所述终端设备的相应功能进行限制。
  11. 如权利要求8所述的电池安全监控系统，其特征在于，所述终端设备支持第一充电模式和第二充电模式，所述第一充电模式的充电速度大于所述第二充电模式的充电速度，其中，
    当所述终端设备以所述第一充电模式进行充电时，所述预设时间大于等于3分钟；
    当所述终端设备以所述第二充电模式进行充电时，所述预设时间大于等于20分钟。
  12. 如权利要求8所述的电池安全监控系统，其特征在于，当所述终端设备处于低功耗状态时，所述获取模块获取所述持续时间。
  13. 一种终端设备，其特征在于，包括如权利要求8-12中任一项所述的电池安全监控系统。
  14. 一种适配器，其特征在于，所述适配器与所述终端设备之间进行通信，所述适配器包括如权利要求8-12中任一项所述的电池安全监控系统。
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