WO2014180243A1 - Terminal mobile - Google Patents

Terminal mobile Download PDF

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Publication number
WO2014180243A1
WO2014180243A1 PCT/CN2014/075831 CN2014075831W WO2014180243A1 WO 2014180243 A1 WO2014180243 A1 WO 2014180243A1 CN 2014075831 W CN2014075831 W CN 2014075831W WO 2014180243 A1 WO2014180243 A1 WO 2014180243A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
processor
sensor
mobile terminal
alarm
Prior art date
Application number
PCT/CN2014/075831
Other languages
English (en)
Chinese (zh)
Inventor
马加加
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2014180243A1 publication Critical patent/WO2014180243A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion

Definitions

  • the utility model relates to a battery technology, in particular to a mobile terminal with a battery explosion-proof function.
  • Lithium-ion batteries have high energy density, high open circuit voltage, large output power, low self-discharge, and no memory effect. being widely used.
  • lithium since lithium is chemically active, it burns when combined with air, and therefore generates a large amount of heat and gas, which causes an explosion.
  • overcharge, over discharge, short circuit, and high temperature the electrolyte of the lithium battery will decompose to generate gas, which will cause an explosion.
  • the embodiment of the present invention provides a mobile terminal, which can timely perform security alarms in case of failure of battery safety protection measures to avoid accidents.
  • the embodiment of the present invention provides a mobile terminal, including:
  • the mobile terminal further includes: a processor and an alarm device;
  • the sensor is a sensor for sensing state information inside the battery;
  • the processor is a processor that drives the alarm device to perform an alarm when determining that an alarm is required according to state information inside the battery;
  • the processor is respectively connected to the sensor and the alarm device.
  • the senor comprises at least one of the following sensors: a temperature sensor; a pressure sensor;
  • the temperature sensor is a sensor that senses temperature information inside the battery;
  • the pressure sensor is a sensor that senses internal pressure information of the battery.
  • the processor is a processor that performs an alarm decision based on the temperature information and/or the pressure information.
  • the battery is further provided with a dedicated interface for reporting information sensed by the sensor.
  • the processor is a processor that acquires internal state information of the battery from the sensor through the dedicated interface.
  • the mobile terminal further includes a power management device
  • the power management device is respectively connected to the battery and the processor; and is a device for acquiring the internal state information of the battery through the dedicated interface.
  • the power management device is configured to acquire internal state information of the battery and report the internal state information to the processor.
  • the processor is a processor that performs an alarm determination according to internal state information of the battery and usage state information of the battery.
  • said alerting means comprises at least one of the following means: an electric motor; a speaker; a liquid crystal display (LCD, Liquid Crystal Display) 0
  • the mobile terminal provided by the embodiment of the present invention can timely perform a security warning to the user in the case that the battery safety protection measure fails, so that the mobile terminal device is in the process of using Safety, reduce accidents.
  • FIG. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a battery in an embodiment of the present invention.
  • FIG. 3 is a flow chart showing the implementation of the explosion-proof warning of the mobile terminal in the embodiment of the present invention. detailed description
  • the mobile terminal includes a battery, a processor, an alarm device, and a sensor disposed in the battery; the processor is respectively connected to the battery, the alarm device, and the sensor; The status information is determined by the processor according to the status information inside the battery, and when the alarm is required, the alarm device is driven to perform an alarm.
  • the factors that may explode the battery include:
  • Thermal shock that is, in the environment of more than 150 °C for a long time, short circuit caused by melting of the diaphragm, short circuit of positive and negative poles generates a large amount of heat to cause explosion;
  • Overcharge, overdischarge When overcharge or overdischarge reaches a certain level, the chemical structure of the battery will change, and the electrolyte will decompose to generate gas, which will explode when it reaches a certain level;
  • Short circuit Whether it is an external short circuit or an internal short circuit, the battery generates a large amount of heat and gas, which causes an explosion.
  • the battery explosion caused by all causes has the same characteristics, that is, high temperature and/or high pressure is generated in the battery. Therefore, detecting the temperature of the battery cells in the battery and the pressure of the gas can effectively determine whether the battery is about to explode.
  • the sensor disposed in the battery includes at least one of the following types of sensors: a temperature sensor; a pressure sensor to correspond to temperature information and pressure information (ie, gas pressure information) in the induction battery, according to the processor Temperature information and pressure inside the battery The information is sent to the alarm decision.
  • the temperature of the battery may be determined according to the shape and size of the battery, and the temperature sensor may be disposed at a higher temperature.
  • the temperature sensor may be attached to the outer wall of the battery inner cell;
  • the pressure sensor can be disposed in a portion of the battery that is sensitive to pressure changes; when gas is generated in the battery, pressure is generated between the battery cell and the outer casing of the battery, and accordingly, the pressure sensor can be disposed on the battery cell and Between the outer casings, for example, it can be attached to the outer wall of the battery cells.
  • the temperature sensor can use the thermistor, and the pressure sensor can use the varistor.
  • the types of the temperature sensor and the pressure sensor are not limited to the above, for example, the temperature sensor can also use the thermocouple sensor, the pressure sensor. It is also possible to use a capacitance type pressure sensor.
  • the battery is further provided with a dedicated interface for reporting information sensed by the sensor; the internal state information of the battery is obtained from the sensor by the processor through the dedicated interface;
  • the current or voltage may be used to generate an interrupt signal that the processor can recognize and respond to; taking the sensor as a thermistor as an example, since the resistance of the thermistor varies with temperature, correspondingly, When the thermistor and the voltage dividing resistor are applied with a constant voltage, the voltage between the thermal terminals changes with the internal temperature of the battery. Therefore, by detecting the voltage between the first end and the second end of the thermistor, The temperature information inside the battery can be determined, and correspondingly, the dedicated interface is an electrical interface for the mobile terminal to collect the voltage between the two ends of the thermistor.
  • a battery management device may be further disposed in the mobile terminal, and the battery management device is connected to the battery to obtain usage status information of the battery (for example, charging and discharging times information), and a battery management system (BMS) technology is adopted.
  • the battery is managed to supply power to the processor, sensor, and alarm device in the mobile terminal; the battery management device also Connected to the processor, using the BMS technology to obtain the usage status information of the battery, including reporting the number of times of charging and discharging of the battery to the processor;
  • the processor determines whether an alarm is needed according to the battery usage status information and the internal status information of the battery, and enters the alarm mode by the normal mode when the alarm is required, and drives the alarm device to perform an alarm; when it is determined that the alarm is released, the operation is restored.
  • the normal mode in addition, the battery management device can also detect the charging voltage and the charging current of the battery during charging of the battery, and protect the battery when the charging voltage and the charging current do not meet the charging standard.
  • the BMS technology can be used by the battery management device to manage the stored energy of the battery, and the voltage division process is performed to generate the working voltage required by the processor and the alarm device. Powering the processor and the alarm device;
  • the voltage dividing device provided by the related technology may be set inside the battery, and the voltage dividing device provides a corresponding working voltage for the processor and the alarm, which is not guaranteed
  • the working voltage is constant, and the voltage dividing device can also have a voltage stabilizing function.
  • the voltage dividing device described above is in the scope of the related art, and the implementation of the voltage dividing device will not be repeated here.
  • the number of times of charge and discharge is calculated based on the number of times the battery is fully charged, that is, when the amount of electricity reaches 100% during charging, it is considered that one charge is completed.
  • the battery management device can also use BMS technology to improve battery utilization, prevent overcharging and overdischarging of the battery, extend battery life, and monitor battery status.
  • the power management device can also obtain state information of the battery from the sensor through a dedicated interface, and report the internal state information of the battery to the processor; that is, the state information of the battery can be processed by the processor. It can be directly obtained through the above-mentioned dedicated interface, and can also be obtained indirectly by the processor from the power management device.
  • the battery management device can be operated on a CPU, a single chip microcomputer, a digital signal processor (DSP), or a Field Programmable Gate Array (FPGA).
  • the processor is respectively connected to the battery and the battery management device, according to the temperature information reported by the temperature sensor, the pressure information reported by the pressure sensor, and the battery usage status information reported by the battery management device (for example, the battery charger) The number of discharges is determined by an alarm; the output of the processor is also connected to the alarm device, and configured to drive the alarm device to issue an alarm when the received information meets a preset alarm opening criterion;
  • the processor determines, according to the received information, that the temperature in the battery is greater than a first preset threshold, and/or the gas pressure in the battery is greater than a second predetermined threshold, the processor generates a highest level of interruption to drive the alarm device to the user. An alarm is issued; or, when it is detected that the number of times the battery is charged and discharged exceeds a preset threshold, the processor generates the highest level of interruption to drive the alarm device to alert the user.
  • the processor may be a CPU, a DSP or an FPGA.
  • the alarm device uses at least one of the following devices: an electric motor; a speaker; an LCD.
  • the mobile terminal includes a battery 11, a processor 12, a battery management device 13, and an alarm device.
  • the alarm device includes: an electric motor 14, an LCD 15, and a speaker. 16; wherein, the structure of the battery 11 is as shown in FIG. 2, including a battery core 21, a housing 22, a temperature sensor 23, a pressure sensor 24, and a dedicated interface 25; a battery 11 for storing electrical energy for use by the mobile terminal;
  • the processor 12 is connected to the temperature sensor 23 in the battery 11 and the pressure sensor 24 via the dedicated interface 25 through the PCB, and the processor is also connected to the alarm device, that is, the electric motor 14, the LCD 15 and the speaker 16; According to the temperature information in the battery 11 sensed by the temperature sensor 23, and/or the pressure information in the battery 11 sensed by the pressure sensor 24, it is determined whether the alarm needs to be activated, and the alarm device is required to issue an alarm when the alarm is required to be activated;
  • the processor 12 determines that the temperature information sensed by the temperature sensor 23 is greater than the first preset threshold, or determines that the pressure in the battery 11 sensed by the pressure sensor 24 is greater than the second.
  • the threshold is preset, the highest level of interruption is generated, and the alarm device is driven to issue an alarm by using one or more of the following alarm modes: driving the electric motor 14 to vibrate; driving the speaker 16 to whistle; driving the LCD 15 to display the current state of the battery; Alert users to prompts.
  • the preset thresholds for temperature and pressure can be preset according to the user's explosion-proof requirements, such as the maximum temperature that the battery can withstand and the maximum pressure that the battery casing can withstand.
  • the processor 12 is further configured to acquire temperature information from the temperature sensor 23 and acquire pressure information from the pressure sensor 24 in accordance with a preset sampling period.
  • the battery management device 13 is connected to the battery 11 and connected to the processor 12, configured to acquire the use state information (charge and discharge times information) of the battery 11, and report the number of times of charge and discharge of the battery 11 to the processor 12;
  • the processor 11 is further configured to perform an alarm determination based on one or more of the usage status information of the battery 11, the temperature information in the battery 11, and the pressure information in the battery 11.
  • the processor 12 acquires the charge/discharge number information of the battery 11 from the battery management device 13, and determines whether the number of times of charge and discharge of the battery 11 exceeds a preset threshold according to the acquired charge/discharge number information of the battery 11; When the number of discharge times is thresholded, the alarm device is driven to alert the user, for example, driving the LCD 15 to display the current number of times the battery 11 is charged and discharged.
  • the threshold value of the number of times of charge and discharge of the battery 11 can be specified according to the material, use, and specification of the battery.
  • the battery management device 13 can also be configured to sense the charging voltage and the charging current of the battery 11 during charging, and to protect the battery 11 when the charging voltage and current do not meet the charging standard.
  • the number of times of charge and discharge is calculated based on the number of times the battery 11 is fully charged, that is, when the amount of electricity reaches 100% during charging, it is considered that one charge is completed.
  • the battery management device 13 can operate on a CPU, a microcontroller, a DSP or an FPGA.
  • An electric motor 14 coupled to the processor 12 and configured to receive a drive from the processor 12 After the command is turned on, the vibration function is turned on to alert the user;
  • the speaker 15, connected to the processor 12, is configured to, when receiving a drive command from the processor 12, turn on the whistle function to alert the user;
  • the LCD 16 coupled to the processor 12, is configured to display the current state of the battery 11 upon receipt of a drive command from the processor 12 to alert the user.
  • the battery core 21 shown in Fig. 2 is a component for storing electric energy in the battery 11, and the shape and material of the battery core 21 are designed according to the requirements of different terminals;
  • a housing 22 located outside the battery cell 21, for protecting components within the battery 11;
  • the temperature sensor 23 is configured to sense the temperature in the battery 11 and report the sensed temperature information through the dedicated interface 25;
  • the temperature sensor 23 may be a thermistor or other type of temperature sensor.
  • the temperature information sensed by the thermistor is in the form of a voltage signal, and the temperature sensor 23 may be based on
  • the design of the battery is set at a portion where the internal temperature of the battery is high, for example, it can be attached to the surface of the battery 21;
  • the pressure sensor 24 is configured to sense the gas pressure in the battery 11 and report the detected pressure information through the set dedicated interface 25;
  • the pressure sensor 24 may be a varistor or other type of pressure sensor.
  • the varistor takes the pressure information into a voltage signal form, and the pressure sensor 24 can be designed according to the battery 11 a portion of the battery 11 that is sensitive to pressure changes, for example, may be attached to the surface of the battery core 21;
  • temperature information sensed by the temperature sensor 23 and the pressure information sensed by the pressure sensor 24 can be directly reported to the processor 12 through the dedicated interface 25, or can be reported to the power management device 13 through the dedicated interface 25, and The processor 12 is reported by the power management device 13.
  • connections of the components of the mobile terminal shown in FIG. 1 are for power generation. Electrical connection of signal transmission; for example, a connection between the processor 12 and the battery 11 (essentially an electrical connection between the processor 11 and a dedicated interface 25 in the battery 11 for obtaining temperature information and pressure in the form of electrical signals information;
  • the battery management device 13 also has an electrical connection (not shown in Figure 1) with the processor 12, and the various alarm devices of Figure 1, to power the processor 12, temperature sensor 23, pressure sensor 24, and alarm device.
  • the temperature sensor 23 and the pressure sensor 24 are both located between the outer wall of the battery and the outer casing 22;
  • the battery 11 can also include a battery protection board, which is an integrated circuit board that protects the rechargeable battery, and protects the battery from being overcharged, over-discharged, over-current, short-circuited, and ultra-high temperature charged and discharged.
  • a battery protection board which is an integrated circuit board that protects the rechargeable battery, and protects the battery from being overcharged, over-discharged, over-current, short-circuited, and ultra-high temperature charged and discharged.
  • FIG. 3 is a flowchart of implementing the explosion-proof warning of the mobile terminal in the embodiment of the present invention. As shown in FIG. 3, the following steps are included:
  • Step 301 Obtain temperature information and pressure information in the battery.
  • the processor 12 obtains the temperature information of the battery sensed by the temperature sensor and the gas pressure information of the battery 11 sensed by the pressure sensor through the dedicated interface 25 according to the preset sampling period.
  • the sampling period can be set according to user needs.
  • Step 302 The processor 12 performs an alarm decision. If an alarm is required, step 303 is performed; otherwise, step 304 is performed.
  • the processor determines whether the temperature information and the pressure information are both greater than a preset threshold. If yes, step 303 is performed; otherwise, step 304 is performed.
  • the preset threshold of the temperature and the preset threshold of the pressure may be preset according to the explosion-proof requirement of the user, for example, the temperature threshold may be set according to the highest temperature that the battery 21 can withstand, according to the battery casing. 22 The maximum pressure that can be withstood sets the pressure threshold.
  • Step 303 The processor 12 generates the highest level interrupt driving alarm device to issue an alarm to the user; and returns to step 301 to continue to acquire the temperature information and the pressure information in the battery 11.
  • the alarm device driven is one or more of the electric motor 14, and the speaker 16, and the LCD 15.
  • Step 304 Obtain the charge/discharge number information of the battery 11 from the battery management device 13.
  • Step 305 It is determined whether the number of times of charging and discharging of the battery 11 exceeds a preset threshold. When the number of times of charging and discharging of the battery 11 exceeds a preset threshold, step 306 is performed; otherwise, step 301 is performed.
  • the threshold value of the number of times of charge and discharge of the battery 11 can be set according to factors such as the material, use, and specifications of the battery 11.
  • Step 306 The processor 12 generates the highest level interrupt to immediately drive the alarm device to alert the user; and returns to step 301 to continue detecting the temperature and pressure information in the battery 11.
  • the electric motor 14 and the electric motor 14 may not be driven.
  • the speaker 16 only needs to drive the LCD 15 to achieve a warning effect to the user.
  • the mobile terminal described in the embodiment of the present invention is based on a loophole in the current battery protection, and generates a temperature sensor for sensing the temperature of the battery and a pressure of the pressure inside the battery according to characteristics such as a gas generated before the explosion of the battery and an increase in temperature.
  • the sensor obtains the temperature information and the pressure information in the battery in real time, and determines whether the alarm needs to be activated.
  • the battery management device can be used to count the battery usage status information such as the number of times of charging and discharging the battery, in the process of charging.
  • Inductive battery charging voltage and current when the charging voltage and current do not meet the charging standard, the battery is charged and protected; when one or more of the following conditions are met: The internal pressure of the battery exceeds a preset threshold; The internal temperature of the battery Exceeding a preset threshold; electricity The number of times the battery charge and discharge exceeds the preset threshold; that is, the interrupt with the highest priority is generated, and at least one of the following methods is used to alarm: drive the electric motor to vibrate; drive the speaker to whistle, drive the LCD to display the current battery status, and promptly perform the user Alarm: When it is judged that the alarm is released according to the reported information, it returns to the normal mode.
  • the embodiment of the present invention provides a mobile terminal to monitor the state of the battery in real time; when the battery is in a dangerous situation, the actual situation of the battery can be reported to the user in time, so that the user is safer.
  • the embodiment of the present invention provides a detection scheme for the internal state information of the battery, but the communication protocol between the functional modules in the mobile terminal is not limited, and those skilled in the art should understand that according to the current communication method, the integrated integrated circuit ( I2C, Inter- Integrated Circuit) or Synchronous Serial Peripheral Interface (SPMI) bus can communicate with the battery management device.
  • the battery and processor can also use the battery interface (BIF, Battery Interface) protocol. Communicate.
  • a sensor is disposed in a battery of the mobile terminal to obtain internal battery state information such as temperature information and pressure information.
  • the processor determines that an alarm needs to be activated, the alarm device is driven to perform an alarm, and the battery safety protection measure may be invalid. In this case, the user is given a security alarm to make the mobile terminal device safer during use and reduce the occurrence of an accident.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un terminal mobile comprenant une batterie et un capteur disposé dans la batterie. Le terminal mobile comprend également un processeur et un dispositif d'alarme. Le capteur est un capteur permettant de détecter des informations d'état de l'intérieur de la batterie. Le processeur est un processeur permettant d'actionner le dispositif d'alarme pour faire sonner une alarme lorsqu'un besoin d'alarme est déterminé en fonction des informations d'état de l'intérieur de la batterie. Le processeur est connecté respectivement au capteur et au dispositif d'alarme.
PCT/CN2014/075831 2013-10-16 2014-04-21 Terminal mobile WO2014180243A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320639186.6U CN203537462U (zh) 2013-10-16 2013-10-16 一种移动终端
CN201320639186.6 2013-10-16

Publications (1)

Publication Number Publication Date
WO2014180243A1 true WO2014180243A1 (fr) 2014-11-13

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PCT/CN2014/075831 WO2014180243A1 (fr) 2013-10-16 2014-04-21 Terminal mobile

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WO (1) WO2014180243A1 (fr)

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CN105528561A (zh) * 2016-01-07 2016-04-27 张璐 一种手机与平板电脑的外力损坏保护系统

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CN203537462U (zh) * 2013-10-16 2014-04-09 中兴通讯股份有限公司 一种移动终端
CN104408884B (zh) * 2014-10-28 2017-07-14 宇龙计算机通信科技(深圳)有限公司 具有使用安全告警功能的终端及其告警方法
CN106307921A (zh) * 2015-06-17 2017-01-11 中兴通讯股份有限公司 一种实现终端保护的方法及保护壳
CN105070967B (zh) * 2015-08-17 2018-06-12 南宁迈世信息技术有限公司 蓄电池鼓包检测传感器
CN106443476A (zh) * 2016-10-31 2017-02-22 深圳众思科技有限公司 安全预警装置及电子设备
CN106356494A (zh) * 2016-11-22 2017-01-25 宇龙计算机通信科技(深圳)有限公司 一种电池、一种电池防爆方法及相关装置
CN106816929A (zh) * 2017-02-16 2017-06-09 上海与德通讯技术有限公司 电池、终端及电池保护方法
CN106960984A (zh) * 2017-02-16 2017-07-18 上海与德通讯技术有限公司 电池、终端及电池保护方法
CN106873781A (zh) * 2017-03-22 2017-06-20 信利光电股份有限公司 一种电子设备
CN107144393A (zh) * 2017-05-19 2017-09-08 信利光电股份有限公司 一种可穿戴设备的气压监测系统
DE102018210975B4 (de) * 2018-07-04 2021-02-04 Bayerische Motoren Werke Aktiengesellschaft Batteriemanagementsystem für eine Hochvoltbatterie eines Kraftfahrzeugs, Hochvoltbatterie sowie Kraftfahrzeug
CN109301310B (zh) * 2018-09-11 2020-09-01 深圳市思商科技有限公司 一种可拆卸圆柱锂离子电池及其封装方法
CN110649675B (zh) * 2019-09-26 2021-10-01 Oppo（重庆）智能科技有限公司 充电控制方法和装置、电子设备、计算机可读存储介质

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