WO2015113345A1 - 快速充电方法和系统 - Google Patents

快速充电方法和系统 Download PDF

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Publication number
WO2015113345A1
WO2015113345A1 PCT/CN2014/077490 CN2014077490W WO2015113345A1 WO 2015113345 A1 WO2015113345 A1 WO 2015113345A1 CN 2014077490 W CN2014077490 W CN 2014077490W WO 2015113345 A1 WO2015113345 A1 WO 2015113345A1
Authority
WO
WIPO (PCT)
Prior art keywords
charging
controller
current
circuit
command
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/CN2014/077490
Other languages
English (en)
French (fr)
Inventor
张加亮
吴克伟
张俊
彭良才
廖福椿
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.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp 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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to DK14880476.8T priority Critical patent/DK3101751T3/en
Priority to US15/115,000 priority patent/US9935479B2/en
Priority to PL18172892T priority patent/PL3379690T3/pl
Priority to ES14880476.8T priority patent/ES2694140T3/es
Priority to PL14880476T priority patent/PL3101751T3/pl
Priority to EP14880476.8A priority patent/EP3101751B1/en
Priority to EP18172892.4A priority patent/EP3379690B1/en
Publication of WO2015113345A1 publication Critical patent/WO2015113345A1/zh
Anticipated expiration legal-status Critical
Priority to US15/895,127 priority patent/US10148113B2/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/44—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data between battery management systems and power sources
    • 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
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/485—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/865—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/92—Regulation of charging or discharging current or voltage with prioritisation of loads or sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/42—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data with electronic devices having internal batteries, e.g. mobile phones
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
    • H02J7/61—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements against overcharge
    • 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 invention belongs to the field of mobile terminals, and in particular relates to a fast charging method and system.
  • the Internet and mobile communication networks have provided a huge number of functional applications.
  • the user can not only use the mobile terminal for traditional applications, for example, using a smart phone to answer or make a call; at the same time, the user can also use the mobile terminal to perform web browsing, image transmission, games, and the like.
  • the mobile terminal needs to be charged frequently; and as the user demands the charging speed, the mobile terminal does not monitor the charging current and can accept charging of a large current (for example, the charging current is 2 amps ( A)).
  • a lot of charging adapters have been born, through which the charging of the current can be constantly performed with a large current; although the charging time is reduced to some extent, the constant current charging of a large current is easy to bring safety.
  • Hidden dangers such as: when the battery is about to be full, or before using the charging adapter to charge the battery is still sufficient, then if the charging adapter is still forced to charge a large current, it is easy to cause overcharge of the battery.
  • the control of large current charging and the control of the charging current are not easy to cause overcharging of the battery.
  • the fast charging method provided by the present invention is applicable to a charging system including a charging adapter and a mobile terminal, and the fast charging method includes:
  • the second controller sends a fast charge request to the first controller, the charging adapter includes the second controller, and the mobile terminal includes the first controller;
  • the first controller is responsive to the fast charge request of the second controller, and feeds back a fast charge command to the second controller;
  • the second controller sends a notification request for acquiring a voltage value of the battery cell to the first controller, where the mobile terminal includes the battery cell;
  • the first controller in response to the notification request, acquires a voltage value of the battery cell through a cell connector, and transmits the acquired voltage value of the battery cell to the second controller, the moving The terminal includes the battery connector;
  • the second controller searches for a current adjustment command matching the threshold segment in which the voltage value of the battery cell is located from the threshold segment table, and sends the current adjustment command to the adjustment circuit, where the charging adapter includes the adjustment circuit
  • the threshold segment table records: one or more threshold segments, and a current adjustment command having a mapping relationship with the threshold segment;
  • the adjustment circuit performs current adjustment according to the current adjustment command, and outputs a current adjusted power signal.
  • the present invention provides a fast charging system including: a charging adapter including a second controller and an adjustment circuit, and a mobile terminal including a battery connector, a first controller, and a battery;
  • the second controller is configured to send a fast charge request to the first controller, and is further configured to send, to the first controller, a notification request for acquiring a voltage value of the battery core, and is also used for a threshold segment
  • a current adjustment command matching the threshold segment in which the voltage value of the battery cell is matched is found in the table, and the current adjustment command is sent to the adjustment circuit, and the charging adapter includes the adjustment circuit, and the threshold segment table records: One or more threshold segments, and current adjustment commands having a mapping relationship with the threshold segments;
  • the first controller is configured to respond to the fast charge request of the second controller, and feed back a fast charge command to the second controller, and is further configured to connect through a battery core in response to the notification request Obtaining a voltage value of the battery cell, and transmitting the obtained voltage value of the battery cell to the second controller;
  • the adjusting circuit is configured to perform current adjustment according to the current adjustment command, and output a current adjusted power signal.
  • the second controller of the charging adapter when the charging adapter can support fast charging, the second controller of the charging adapter sends a fast charging request to the first controller of the mobile terminal, asking whether the mobile terminal can accept fast charging; if the mobile terminal accepts fast charging, The feedback allows the fast charge command to the second controller; further, the charging adapter quickly charges the battery of the mobile terminal, and at the same time, the first controller requests the voltage value of the battery core from the second controller, and A current adjustment command is generated according to the voltage value of the battery cell and the threshold segment table, and the adjustment circuit is controlled to perform current adjustment, and the adjustment circuit outputs a power supply line number having a current value specified by the current adjustment command. The charging adapter outputs the power cord number to charge the battery. In this way, before the charging adapter quickly charges the battery of the mobile terminal, the charging adapter can inquire whether the mobile terminal can accept the fast charging and charge, and control the charging current when charging the battery core, thereby effectively avoiding overcharging of the battery core. .
  • FIG. 1 is a first flow chart of a fast charging method according to an embodiment of the present invention
  • step S6 is a specific flowchart of step S6 in the fast charging method according to an embodiment of the present invention
  • FIG. 3 is a third flowchart of a fast charging method according to an embodiment of the present invention.
  • FIG. 4 is a first system architecture diagram of a fast charging system according to an embodiment of the present invention.
  • FIG. 5 is a second system architecture diagram of a fast charging system according to an embodiment of the present invention.
  • FIG. 6 is a third system architecture diagram of a fast charging system according to an embodiment of the present invention.
  • FIG. 7 is a fourth system architecture diagram of a fast charging system according to an embodiment of the present invention.
  • the “first charging interface”, the “first power supply line”, the “first ground line”, and the “first controller” in the “first controller” are all referred to.
  • the “second charging interface”, the “second power supply line”, the “second ground line”, and the “second” in the “second controller” are also all referred to.
  • the charging adapter in the embodiment of the present invention includes: a power adapter, a charger, A terminal that can output a power signal to charge a battery cell (a battery cell of a mobile terminal) such as an IPAD or a smartphone.
  • the charging adapter charges the battery cell of the mobile terminal
  • a second controller to the charging adapter
  • adding the first controller to the mobile terminal passing the first controller Communicating with the second controller for fast charging coordination using the charging adapter (eg, the second controller inquiring whether the first controller needs to quickly charge the battery of the mobile terminal), and for the entire charging process
  • the adjustment of the charging current effectively avoids overcharging of the battery and enables safe and fast charging.
  • FIG. 1 shows a first specific process of the fast charging method provided by the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the fast charging method provided by the embodiment of the present invention is applicable to a charging system including a charging adapter and a mobile terminal, and the fast charging method includes:
  • the second controller sends a fast charge request to the first controller
  • the charging adapter includes the second controller
  • the mobile terminal includes the first controller
  • the first controller responds to the fast charge request of the second controller, and feeds back a fast charge command to the second controller;
  • the second controller sends a notification request for acquiring a voltage value of the battery core to the first controller, where the mobile terminal includes the battery core;
  • the first controller in response to the notification request, acquires a voltage value of the battery cell through a cell connector, and sends the obtained voltage value of the battery cell to the second controller.
  • the mobile terminal includes the battery connector;
  • the second controller searches for a current adjustment command that matches a threshold segment where the voltage value of the battery cell is located from the threshold segment table, and sends the current adjustment command to the adjustment circuit, where the charging adapter includes the Adjusting a circuit, the threshold segment table is recorded with: one or more threshold segments, and a current adjustment command having a mapping relationship with the threshold segment;
  • the adjustment circuit performs current adjustment according to the current adjustment command, and outputs a current adjusted power signal.
  • the charging adapter for charging the battery cell of the mobile terminal is an existing ordinary charging adapter
  • the ordinary charger does not have the second controller, and thus does not go to the first control. Ask if you need a fast charge request for fast charging. Therefore, after the charging controller provided by the embodiment of the present invention adds the second controller, the mobile terminal provided at the same time can monitor the entire real-time through the communication between the first controller and the second controller after adding the first controller. Charging process.
  • the charging adapter has a large current output capability
  • communication between the first controller and the second controller is performed through steps S1 and S2, specifically, the second controller sends a fast charge request to the first controller.
  • the first controller is inquired by the fast charge request: whether the charging adapter is accepted to perform large current charging on the battery of the mobile terminal. If the battery of the mobile terminal can be charged with a large current, the first controller feeds back the allowable fast charge command to the second controller, and the second controller also determines that the mobile phone can be moved when receiving the allowable fast charge command.
  • the battery cells of the terminal are charged at a high current.
  • the second controller sends a notification request to the first controller, by which the first controller is queried for the voltage value of the battery cell.
  • the cell connector is connected to the cell, and the voltage value of the cell is obtained in real time, and the obtained voltage value of the cell is sent to the first controller in real time.
  • the first controller receives the notification request, in response to the notification request, the acquired voltage value of the battery cell is transmitted to the second controller.
  • the charging adapter can perform large current charging on the battery of the mobile terminal.
  • the second controller adjusts the current of the output power signal according to the voltage value of the battery core received in real time and according to the threshold segment table. The value is the current value of the power signal that flows into the cell.
  • a threshold segment table is stored in the second controller, and the threshold segment table can be preset according to corresponding control requirements for charging time and charging current required for charging the cell.
  • the threshold segment table is downloaded to the second controller.
  • the threshold segment table describes one or more threshold segments, and each threshold segment (which is a numerical interval) has an upper limit value and a lower limit value of a voltage value.
  • the threshold segment table also records one or more current adjustment commands, wherein each current adjustment command has a corresponding threshold segment.
  • the charging adapter when the detected voltage value of the battery cell is in the range of 0V to 4.3V, the charging adapter outputs a power signal of 4A to charge the battery cell; when the detected voltage value of the battery cell In the range of 4.3V to 4.32V, the charging adapter outputs the power signal of 3A to charge the battery; when the detected voltage of the battery is in the range of 4.32V to 4.35V, the charging adapter outputs the power of 2A.
  • the signal charges the cell; when the detected voltage of the cell exceeds 4.35V, the charging adapter outputs only a few hundred milliamps of power to charge the cell.
  • the voltage of the battery cell can be monitored in real time, and when the voltage of the battery core is low, the charging adapter outputs a large current (charging current of 3A and above) to the battery core, and charges the battery core with a large current;
  • the voltage of the cell reaches the shutdown voltage threshold (ie, the cell is fully charged), the charging adapter outputs a small current to the cell, and charges the cell with a small current (a few hundred milliamps of charging current); not only prevents the cell from being charged Overcharge also shortens the charging time.
  • the voltage threshold segments consisting of all of the threshold segments recited in the threshold segment table are numerically continuous. In this way, it is possible to ensure that a corresponding current adjustment command can be found for each of the detected voltage values (voltage values of the cells).
  • the second controller sends a current adjustment command matching the other threshold segment to the adjustment circuit.
  • the adjustment circuit When receiving the current adjustment command, the adjustment circuit adjusts the power signal output from the charging adapter, and the current value of the power signal output by the adjustment is the current value specified by the current adjustment command.
  • the charging circuit (including the charging circuit inside the mobile terminal and the charging circuit in the charging adapter) introduces impedances other than the charging circuit such as internal resistance, parasitic resistance, and coupling resistance, these introductions
  • the impedance will divide part of the current (this part of the current will not enter the cell of the mobile terminal); therefore, in order to ensure that the current value directly flowing into the cell can reach the preset current value, it is necessary to consider part of the current divided by the introduced impedance.
  • the current value specified by the current adjustment command is greater than the current value of the power signal entering the cell; preferably, the current value specified by the current adjustment command is set to directly flow into the cell.
  • the sum of the preset current value and the current value of the partial current divided by the introduced impedance For example, if the current value of the power signal that is expected to enter the cell is 3.2A, and the current value of the partial current divided by the introduced impedance is 0.8A, the current value specified by the current adjustment command (ie, output from the charging adapter) The current value of the power signal is set to 4A.
  • FIG. 2 shows a specific process of step S6 in the fast charging method according to the embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the adjusting circuit in order to ensure that the power signal output from the adjustment circuit is a large current (having the current value specified by the current adjustment command), it is necessary to monitor in real time whether the power signal output from the charging adapter is the current adjustment.
  • the adjusting circuit includes a current detecting circuit;
  • the step of adjusting the current according to the current adjustment command, and outputting the current adjusted power signal specifically includes:
  • the current detecting circuit detects a current value of the power signal output by the adjusting circuit, and sends the detected current value to the second controller;
  • the second controller calculates a difference between the detected current value and a current value specified by the current adjustment instruction. If the calculated absolute value of the difference is greater than the difference threshold, then the adjustment circuit is Send a calibration command;
  • the adjustment circuit calibrates the power signal according to the current difference specified by the calibration instruction, and outputs a calibrated power signal.
  • the current value of the calibrated power signal is: a current value specified by the current adjustment command.
  • the adjustment circuit has a current detecting circuit; the current detecting circuit can detect the current value of the power signal output by the adjusting circuit (ie, the current value of the power signal output from the charging adapter) in real time.
  • the current detecting circuit has a current detecting resistor, and the current value of the power signal output by the adjusting circuit is detected in real time through the current detecting resistor, and the current value is converted into a voltage value, and the voltage value is sent to the second control.
  • the second controller further determines the detected current value of the power signal output by the adjusting circuit according to the received voltage value and the resistance value of the current detecting resistor.
  • the second controller calculates a difference between the detected current value and the current value specified by the current adjustment command, calculates an absolute value of the difference, and determines whether the absolute value is greater than a difference threshold, if the absolute If the value is greater than the difference threshold, the calibration command is fed back to the adjustment circuit to adjust the current value of the output power signal according to the calibration command.
  • the difference threshold may be adjusted in advance according to the actual working environment of the adjustment circuit.
  • the adjustment circuit receives the calibration command, the current value of the power signal representing the output of the adjustment circuit deviates greatly from the current value specified by the current adjustment command, and the adjustment circuit is required to perform current adjustment again, specifically, according to The current difference specified by the calibration command is used for current adjustment, and the current value of the power signal outputted by the adjustment circuit is ensured in real time as the current value specified by the current adjustment command.
  • the adjustment circuit further includes a voltage current adjustment circuit, and the voltage current adjustment circuit performs rectification and filtering on the commercial power to obtain an original power supply signal.
  • the adjustment circuit determines a voltage adjustment instruction according to the current difference specified by the calibration instruction, and the voltage adjustment instruction is Sending to the voltage and current adjustment circuit; the voltage current adjustment circuit performs voltage adjustment according to the voltage adjustment command, and outputs a voltage-adjusted power supply signal; since the voltage-adjusted power supply signal flows through the current-sense resistor, the current-sense resistor can be re- It is detected whether the current value of the voltage-adjusted power signal is the current value specified by the current adjustment command.
  • the adjustment circuit stops determining the voltage adjustment command according to the received calibration command and stops The determined voltage adjustment command is sent to the voltage current adjustment circuit, and the voltage current adjustment circuit stops performing voltage adjustment.
  • the second control generates a calibration command according to the feedback current value and sends the calibration command to the adjustment circuit, and the adjustment circuit determines the voltage adjustment command according to the calibration command and sends the voltage adjustment command to the voltage current adjustment circuit, and the voltage current adjustment circuit according to the The voltage adjustment command performs voltage adjustment and outputs a voltage-adjusted power signal; then, the current-sense resistor can continue to detect whether the current value of the voltage-adjusted power signal is the current value specified by the current adjustment command.
  • FIG. 3 shows a second specific flow of the fast charging method provided by the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the fast charging method further includes:
  • the charging adapter sends a power signal to the first charging interface of the mobile terminal through the second charging interface, and charges the battery core of the mobile terminal by the charging adapter, wherein the first charging interface
  • the first power line is connected to the second power line of the second charging interface
  • the first ground line of the first charging interface is connected to the second ground line of the second charging interface
  • the first power line is P
  • the first ground line is Q
  • P is greater than or equal to 2
  • Q is greater than or equal to 2.
  • the existing MICRO USB interface (including the charging adapter MICRO) USB plug, also includes the MICRO of the mobile terminal
  • the USB socket has only one power line and one ground line, so that the charging circuit can only be formed through the power line and the ground line, and the charging current is usually only a few hundred milliamperes, and usually does not exceed 3A.
  • the present embodiment provides a first charging interface capable of supporting large current charging (charging current of 3A and above). Since the first charging interface has at least two first power lines and at least two first ground lines, the mobile terminal can support large current charging through the first charging interface.
  • the charging adapter plugged into the first charging interface is an existing charging adapter (for example: using MICRO) USB interface charging adapter), still able to perform normal charging (will be MICRO
  • the only power and ground lines of the USB interface are connected to a first power line of the first charging interface and a first ground line, and only the power line and the ground line are used to charge the battery.
  • the second power line is P, and the second ground line is Q;
  • the P first power lines in the first charging interface are correspondingly connected to the P second power lines in the second charging interface, and the Q first ground lines and the first The Q second ground lines in the two charging interfaces are correspondingly connected.
  • the first charging interface and the second charging interface after plugging can support large current charging (charging current of 3A or more).
  • the charging adapter can output a large current power signal (for example, a power signal of 4A) when the voltage value of the battery cell is small (for example, the voltage value of the battery core is lower than 4.3 V), and perform a large current on the battery of the mobile terminal. Charging.
  • the power cable and the ground wire of the USB interface are all made of metal copper foil with a conductivity of less than 20%, and the first power cable and the first ground wire and the second charging interface included in the first charging interface provided in this embodiment are provided.
  • the included second power line and the second ground line are all made of phosphor bronze C7025 with a conductivity of 50%, thereby adopting at least two charging circuits (including: at least two first power lines, at least two)
  • the charging current can be further increased in the case where the first ground line, the at least two second power lines, and the at least two second ground lines perform charging of the cells of the mobile terminal.
  • the first power supply line and the first ground line included in the first charging interface and the second power line and the second ground line included in the second charging interface are both electrically conductive. Made of chrome bronze C18400, which further increases the charging current.
  • the mobile terminal further includes a switching circuit, and the turning on or off of the switching circuit is specified by the first controller.
  • the embodiment further adds a switch circuit to the mobile terminal; when the second charging interface is plugged into the first charging interface, not only can the charging already existed by the mobile terminal
  • the circuit charges the battery core
  • the first controller controls the conduction of the switch circuit, and the charging adapter charges the battery core through the existing charging circuit, and can also charge the battery core through the turned-on switching circuit.
  • the fast charging method further includes:
  • the first controller sends a conduction command to the switch circuit
  • the switching circuit when receiving the conduction command, turns on a charging circuit that the charging adapter charges the battery cell through the switching circuit.
  • the battery can be charged by the existing charging circuit of the mobile terminal.
  • the battery can also be charged by the switch circuit to achieve high current charging of the battery core.
  • the first controller feeds back a fast charge command to the second controller, and has notified the second controller that the battery can be charged with a large current. At the same time, the first controller also sends a turn-on command to the switch circuit.
  • the switch circuit When the switching circuit receives the conduction command, the switch circuit is turned on; further, the charging adapter can charge the battery cell of the mobile terminal through the charging circuit that the mobile terminal already has, and can also pass through the conductive device.
  • the switching circuit charges the battery cells.
  • the fast charging method further includes:
  • the switch circuit when receiving the disconnection command, disconnects a charging circuit that the charging adapter charges the battery cell through the switch circuit.
  • the cell connector obtains the voltage value of the cell in real time and transmits the voltage value of the cell to the first controller.
  • the first controller determines in real time whether the obtained voltage value of the battery cell is greater than a shutdown voltage threshold; if the obtained voltage value of the battery cell is greater than a shutdown voltage threshold The first controller sends a disconnection command to the switch circuit.
  • the switch circuit is turned off when the switch circuit receives the open command.
  • the charging adapter can only charge the battery cells of the mobile terminal through the charging circuit that the mobile terminal already has, and cannot charge the battery cells through the disconnected switching circuit.
  • the second controller when the obtained voltage value of the battery cell is greater than a shutdown voltage threshold, the second controller also sends a current adjustment command to the adjustment circuit, and the current adjustment command specifies a small current output by the adjustment circuit (for example: a few hundred milliamps) of power signals.
  • the first controller may be a controller that the mobile terminal now has.
  • the mobile terminal not only has a third controller for processing an application (the third controller is configured for the existing mobile terminal), but also has a first controller, through the first The controller controls the switching circuit and controls charging of the cells of the mobile terminal.
  • the first controller forwards the voltage value of the battery cell received in real time to the third controller, and the third controller determines whether the acquired voltage value of the battery cell is greater than a shutdown voltage threshold; The voltage value of the battery cell is greater than the shutdown voltage threshold, and the third controller sends a first disconnection command to the first controller; and further, the first controller sends a disconnection command to the switch circuit.
  • the third controller directly sends a disconnection command to the switch circuit.
  • the switch circuit when receiving the disconnection command, disconnects a charging circuit that the charging adapter charges the battery cell through the switch circuit.
  • the mobile terminal has a charging circuit for charging.
  • the embodiment further adds a switching circuit to the mobile terminal; and when the second charging interface is plugged into the first charging interface, not only can the charging terminal have a charging circuit for charging
  • the first controller can also control the conduction of the switch circuit, and the charging adapter can charge the battery cell through the turned-on switching circuit while charging the battery cell through the existing charging current.
  • the battery connector is further configured to generate a positive contact signal when detecting whether the positive electrode of the battery is in contact, generate a negative contact signal when detecting whether the negative electrode of the battery is in contact, generate a temperature signal when detecting the temperature of the battery, and contact the positive electrode.
  • a signal, the negative contact signal, and the temperature signal are sent to the first controller.
  • the first controller forwards the positive contact signal, the negative contact signal, and the temperature signal to a third controller.
  • the third controller determines, according to the received positive contact signal, whether the charging circuit of the mobile terminal and the positive charging contact point of the switching circuit are in good contact with the positive electrode of the battery, and is determined to be the mobile terminal according to the received negative contact signal. Whether the negative charging contact point of the charging circuit and the switching circuit is in good contact with the negative electrode of the battery, and determining whether the temperature of the battery exceeds a temperature threshold according to the temperature signal.
  • the third controller is configured to determine that the positive charging contact point does not well contact the cell positive electrode according to the received positive electrode contact signal, or if the negative charging contact point is not in good contact according to the received negative contact signal
  • the battery core is negative, or if it is determined according to the temperature signal that the voltage of the battery cell has exceeded a temperature threshold, a first disconnection command is sent to the first controller. Further, the first controller sends a disconnection command to the switch circuit, and the switch circuit is turned off to stop the electric adapter from charging the battery cell through the switch circuit.
  • FIG. 4 shows a first system architecture of the fast charging system according to the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the fast charging system includes: a charging adapter 2 including a second controller 21 and an adjusting circuit 22, and a mobile terminal including a battery connector, a first controller 11, and a battery core 1;
  • the second controller 21 is configured to send a fast charge request to the first controller 11, and is further configured to send, to the first controller 11, a notification request for acquiring a voltage value of the battery core, and is further used for Finding, by the threshold segment table, a current adjustment command that matches a threshold segment in which the voltage value of the battery cell is located, and transmitting the current adjustment command to the adjustment circuit 22, the charging adapter 2 including the adjustment circuit 22,
  • the threshold segment table records: one or more threshold segments, and a current adjustment command having a mapping relationship with the threshold segment;
  • the first controller 11 is configured to respond to the fast charge request of the second controller 21, and feed back a fast charge command to the second controller 21, and is further configured to respond to the notification request, by
  • the battery connector acquires a voltage value of the battery cell, and sends the obtained voltage value of the battery cell to the second controller twenty one;
  • the adjusting circuit 22 is configured to perform current adjustment according to the current adjustment command, and output a current adjusted power signal.
  • FIG. 5 shows a second system architecture of the fast charging system according to the embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the adjustment circuit 22 includes a current detection circuit 221;
  • the current detecting circuit 221 is configured to detect a current value of the power signal output by the adjusting circuit 22, and send the detected current value to the second controller 21;
  • the second controller 21 is further configured to calculate a difference between the detected current value and a current value specified by the current adjustment instruction, and if the calculated absolute value of the difference is greater than a difference threshold, then The adjustment circuit 22 sends a calibration instruction;
  • the adjusting circuit 22 is further configured to calibrate the power signal according to the current difference specified by the calibration instruction, and output a calibrated power signal, wherein the current value of the calibrated power signal is: the current specified by the current adjustment command value.
  • FIG. 6 shows a third system architecture of the fast charging system according to the embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the charging adapter 2 further includes a second charging interface 23, the mobile terminal 1 further includes a first charging interface 12;
  • the charging adapter 2 is further configured to send a power signal to the first charging interface 12 through the second charging interface 23, and charge the battery core of the mobile terminal 1 by the charging adapter 2, where
  • the first power line of the first charging interface 12 is connected to the second power line of the second charging interface 23, the first ground of the first charging interface 12 and the second ground of the second charging interface 23
  • the first power line is P
  • the first ground line is Q
  • P is greater than or equal to 2
  • Q is greater than or equal to 2.
  • the second power line is P, and the second ground line is Q;
  • the P first power lines in the first charging interface 12 are correspondingly connected to the P second power lines in the second charging interface 23, and the Q first ground lines in the first charging interface 12 are The Q second ground lines in the second charging interface 23 are correspondingly connected.
  • FIG. 7 shows a fourth system architecture of the fast charging system according to the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the mobile terminal 1 further includes a switch circuit 13;
  • the first controller 11 is further configured to send a turn-on command to the switch circuit 13, and is further configured to determine whether the acquired voltage value of the battery cell is greater than a turn-off voltage threshold, if the obtained power is Sending a disconnection command to the switch circuit 13 when the voltage value of the core is greater than the turn-off voltage threshold;
  • the switching circuit 13 is configured to, when receiving the conduction command, turn on a charging circuit that charges the charging core by the charging adapter 2 through the switching circuit 13, and is further configured to receive the disconnection When the command is turned on, the charging circuit that the charging adapter 2 charges the battery cell through the switching circuit 13 is turned off.

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Abstract

适用于移动终端领域的充电方法和系统，其中，第二控制器（21）向第一控制器（11）发送快充请求（S1）；第一控制器反馈允许快充指令至第二控制器（S2）；第二控制器向第一控制器发送获取电芯的电压值的告知请求（S3）；第一控制器通过电芯连接器获取电芯的电压值，并将获取到的电芯的电压值发送至第二控制器（S4）；第二控制器从阈值段表中査找出与电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路（22）发送电流调整指令（S5）；调整电路根据电流调整指令进行电流调整，输出电流调整后的电源信号（S6）。这样，在移动终端（1）的电芯进行快充之前，询问移动终端是否接受快充；在充电过程中对充电电流进行控制，有效地避免了电芯过充。

Description

快速充电方法和系统 技术领域
本发明属于移动终端领域，尤其涉及快速充电方法和系统。
 背景技术
随着时代的进步，互联网和移动通信网提供了海量的功能应用。用户不但可以使用移动终端进行传统应用，例如：使用智能手机接听或拨打电话；同时，用户不但可以还可以使用移动终端进行网页浏览、图片传输，游戏等。
伴随着移动终端的使用频率增加，移动终端需要经常充电；另随着用户对充电速度的要求，不乏移动终端没有对充电电流进行监控，能够接受较大电流的充电（例如充电电流为2安培（A））。与此同时，也诞生了不少充电适配器，通过该充电适配器能够恒定地进行较大电流的充电；虽然在一定程度上减少了充电时间，但是，较大电流的恒流充电也容易带来安全隐患，具体如：在电芯即将充满时，或者在使用该充电适配器充电之前电芯的电量还比较充足，这时如果仍强行使用充电适配器进行较大电流的充电，容易造成电芯过充。
 技术问题
本发明的目的在于提供一种快速充电方法和充电装置，以解决现有技术提供给充电适配器使用恒定的、单一的较大充电电流对移动终端的电芯进行强行充电，没有是否能够对电芯进行较大电流充电的控制，以及没有对充电电流进行控制，容易造成电芯过充的问题。
 技术解决方案
一方面，本发明提供的快速充电方法适用于包括充电适配器和移动终端的充电系统，所述快速充电方法包括：
第二控制器向第一控制器发送快充请求，所述充电适配器包括所述第二控制器，所述移动终端包括所述第一控制器；
所述第一控制器响应所述第二控制器的所述快充请求，并反馈允许快充指令至所述第二控制器；
所述第二控制器向所述第一控制器发送获取电芯的电压值的告知请求，所述移动终端包括所述电芯；
所述第一控制器响应所述告知请求，通过电芯连接器获取所述电芯的电压值，并将获取到的所述电芯的电压值发送至所述第二控制器，所述移动终端包括所述电芯连接器；
所述第二控制器从阈值段表中查找出与所述电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路发送所述电流调整指令，所述充电适配器包括所述调整电路，所述阈值段表记载有：一个或多个阈值段，和与阈值段具有映射关系的电流调整指令；
所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号。
一方面，本发明提供的快速充电系统，所述快速充电系统包括：包括第二控制器和调整电路的充电适配器，和包括电芯连接器、第一控制器以及电芯的移动终端；
所述第二控制器，用于向所述第一控制器发送快充请求，还用于向所述第一控制器发送获取所述电芯的电压值的告知请求，还用于从阈值段表中查找出与所述电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路发送所述电流调整指令，所述充电适配器包括所述调整电路，所述阈值段表记载有：一个或多个阈值段，和与阈值段具有映射关系的电流调整指令；
所述第一控制器，用于响应所述第二控制器的所述快充请求，并反馈允许快充指令至所述第二控制器，还用于响应所述告知请求，通过电芯连接器获取所述电芯的电压值，并将获取到的所述电芯的电压值发送至所述第二控制器；
所述调整电路，用于根据所述电流调整指令进行电流调整，输出电流调整后的电源信号。
 有益效果
本发明的有益效果：当充电适配器能够支持快速充电时，充电适配器的第二控制器向移动终端第一控制器发送快充请求，询问移动终端是否可以接受快充；如果移动终端接受快充，会反馈允许快充指令至所述第二控制器；进而，充电适配器对移动终端的电芯进行快速充电，于此同时，第一控制器会向第二控制器索取电芯的电压值，并根据该电芯的电压值和阈值段表生成电流调整指令，以控制调整电路进行电流调整，进而调整电路输出具有所述电流调整指令指定的电流值的电源线号。充电适配器输出该电源线号以对电芯充电。这样，充电适配器在对移动终端的电芯进行快速充电之前，会询问移动终端是否能够接受快充充电，并在在对电芯进行充电时对充电电流进行控制，有效地避免了电芯过充。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的快速充电方法的第一种流程图；
图2是本发明实施例提供的快速充电方法中步骤S6的具体流程图；
图3是本发明实施例提供的快速充电方法的第三种流程图；
图4是本发明实施例提供的快速充电系统的第一种系统架构图；
图5是本发明实施例提供的快速充电系统的第二种系统架构图；
图6是本发明实施例提供的快速充电系统的第三种系统架构图；
图7是本发明实施例提供的快速充电系统的第四种系统架构图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。为了说明本发明所述的技术方案，下面通过具体实施例来进行说明。
在本发明实施例中，“第一充电接口”、“第一电源线”、“第一地线”以及“第一控制器”中的“第一”均为代指。“第二充电接口”、“第二电源线”、“第二地线”以及“第二控制器”中的“第二”也均为代指。
需要说明的是，本发明实施例中的充电适配器包括：电源适配器、充电器、 IPAD、智能手机等能够输出电源信号以对电芯（移动终端的电芯）进行充电的终端。
在本发明实施例中，当充电适配器对移动终端的电芯进行充电时，通过在充电适配器中添置第二控制器，和在所述移动终端添置所述第一控制器，通过第一控制器与第二控制器的通信，针对是否需要使用充电适配器进行快速充电协调（例如：第二控制器询问第一控制器是否需要对移动终端的电芯进行快速充电），以及针对整个充电过程中进行充电电流的调整，有效地避免了电芯过充的同时，还能够进行安全的快速充电。
图1示出了本发明实施例提供的快速充电方法的第一种具体流程，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
本发明实施例提供的快速充电方法，适用于包括充电适配器和移动终端的充电系统，所述快速充电方法包括：
S1，第二控制器向第一控制器发送快充请求，所述充电适配器包括所述第二控制器，所述移动终端包括所述第一控制器；
S2，所述第一控制器响应所述第二控制器的所述快充请求，并反馈允许快充指令至所述第二控制器；
S3，所述第二控制器向所述第一控制器发送获取电芯的电压值的告知请求，所述移动终端包括所述电芯；
S4，所述第一控制器响应所述告知请求，通过电芯连接器获取所述电芯的电压值，并将获取到的所述电芯的电压值发送至所述第二控制器，所述移动终端包括所述电芯连接器；
S5，所述第二控制器从阈值段表中查找出与所述电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路发送所述电流调整指令，所述充电适配器包括所述调整电路，所述阈值段表记载有：一个或多个阈值段，和与阈值段具有映射关系的电流调整指令；
S6，所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号。
具体地在本实施例中，如果用于对移动终端的电芯进行充电的充电适配器为现有的普通充电适配器，则该普通充电器不具有第二控制器，进而也不会向第一控制器询问是否需要进行快速充电的快充请求。因此，本发明实施例提供的充电适配器在添加第二控制器之后，同时提供的移动终端在添加第一控制器之后，能够通过第一控制器和第二控制器之间的通信，实时监控整个充电过程。
进而，如果该充电适配器具有大电流的输出能力，通过步骤S1和步骤S2进行第一控制器和第二控制器之间的通信，具体地，第二控制器向第一控制器发送快充请求，通过该快充请求询问第一控制器：是否接受充电适配器对移动终端的电芯进行大电流充电。如果可以对移动终端的电芯进行大电流充电，第一控制器会向第二控制器反馈允许快充指令，则第二控制器在接收到该允许快充指令时也会判定为可以对移动终端的电芯进行大电流充电。
进而，第二控制器向第一控制器发送告知请求，通过该告知请求向第一控制器询问电芯的电压值。在整个充电过程中，与电芯连接电芯连接器都会实时获取所述电芯的电压值，并将获取到的电芯的电压值实时发送至第一控制器。一旦第一控制器接收到该告知请求，响应该告知请求，将获取到的所述电芯的电压值发送给第二控制器。
需说明的是，在通常情况下，可以选用能够支持大电流（3A及以上的充电电流）的电子元器件和/或选用能够支持大电流的充电电路（包括充电适配器的充电电路（如：滤波整流电路和电压电流调整电路），和移动终端中的充电电路），能够实现对电芯进行大电流充电。但是，使用恒定的大电流对移动终端的电芯进行充电，由于在充电回路（包括移动终端内部的充电电路和充电适配器中的充电电路）上均会引入内阻、寄生电阻以及耦合电阻等除充电电路以外阻抗，当使用大电流充电时，会产生更大的热功耗（即产生大量的热量）。
进而在本实施例中，当移动终端的第一充电接口与充电适配器的第二充电接口插接后，经过步骤S1和步骤S2之后，充电适配器可对移动终端的电芯进行大电流充电。为了实现减少充电时间，为了减少热功耗，还为了对电芯进行过充保护，第二控制器根据实时接收到的电芯的电压值，以及根据阈值段表，调整输出的电源信号的电流值，即调整流入电芯的电源信号的电流值。
值得说明的是，在第二控制器中存储有阈值段表，该阈值段表可根据对电芯充电所需的充电时间和充电电流而进行的相应控制需求而预先设定。优选的是，该阈值段表由具有编辑能力的终端编辑后该阈值段表之后，下载该阈值段表至第二控制器。
另外，该阈值段表记载有一个或多个阈值段，每个阈值段（为一个数值区间）均具有一个电压值的上限值和下限值。与此同时，该阈值段表还记载有一个或多个电流调整指令，其中，每个电流调整指令都有对应的一个阈值段。在本发明一具体实施例中，检测到的电芯的电压值在0V至4.3V的区间范围内时，充电适配器输出4A的电源信号以对电芯充电；当检测到的电芯的电压值在4.3V至4.32V的区间范围内，充电适配器输出3A的电源信号以对电芯充电；当检测到的电芯的电压值在4.32V至4.35V的区间范围内，充电适配器输出2A的电源信号以对电芯充电；当检测到的电芯的电压值超过4.35V时，充电适配器仅输出几百毫安的电源信号以对电芯充电。这样，可以通过实时监控电芯的电压，在所述电芯的电压较低时，充电适配器向该电芯输出大电流（3A及以上的充电电流），对电芯进行大电流充电；进而当电芯的电压达到关断电压阈值（即电芯快充满），充电适配器向该电芯输出小电流，对电芯进行小电流（几百毫安的充电电流）充电；不但防止了对电芯的过充，还减短了充电时间。优选的是，由该阈值段表中记载的所有阈值段组成的电压阈值段在数值上是连续的。这样，能够保证针对检测到的每个电压值（电芯的电压值），都能够找到对应的电流调整指令。
进而，如果持续接收到的所述电芯的电压值从一个阈值段跳到另一阈值段时，第二控制器会向调整电路发送与该另一阈值段匹配的电流调整指令。
调整电路在接收到电流调整指令时，调整从充电适配器输出的电源信号，该调整输出的电源信号的电流值为所述电流调整指令指定的电流值。
在本发明另一实施例中，由于在充电回路（包括移动终端内部的充电电路和充电适配器中的充电电路）上均会引入内阻、寄生电阻以及耦合电阻等除充电电路以外阻抗，这些引入的阻抗会分去部分电流（这部分电流不会进入移动终端的电芯）；因此，为了保证直接流入电芯的电流值能够达到预设的电流值，需要考虑引入的阻抗分去的部分电流，进而设定的所述电流调整指令指定的电流值均会大于进入电芯的电源信号的电流值；优选的是，设定的所述电流调整指令指定的电流值为：直接流入电芯的预设的电流值和引入的阻抗分去的部分电流的电流值之和。例如：如果期望进入电芯的电源信号的电流值为3.2A，引入的阻抗分去的部分电流的电流值为0.8A时，将所述电流调整指令指定的电流值（即从充电适配器输出的电源信号的电流值）设置为4A。
图2示出了本发明实施例提供的快速充电方法中步骤S6的具体流程，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，为了保证从调整电路输出的电源信号为大电流（具有所述电流调整指令指定的电流值），需要实时监测从充电适配器输出的电源信号是否为所述电流调整指令指定的电流值；进而，所述调整电路包括电流检测电路；
与此同时，所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号的步骤，具体包括：
S61，所述电流检测电路检测所述调整电路输出的电源信号的电流值，并向所述第二控制器发送检测到的电流值；
S62，所述第二控制器计算所述检测到的电流值与所述电流调整指令指定的电流值的差值，如果计算出的差值的绝对值大于差值阈值，则向所述调整电路发送校准指令；
S63，所述调整电路根据所述校准指令指定的电流差值校准电源信号，输出校准后的电源信号，所述校准后的电源信号的电流值为：所述电流调整指令指定的电流值。
在本实施例中，调整电路具有电流检测电路；可通过该电流检测电路会实时检测所述调整电路输出的电源信号的电流值（即从充电适配器输出的电源信号的电流值）。优选的是，电流检测电路具有一检流电阻，通过该检流电阻实时检测所述调整电路输出的电源信号的电流值并将该电流值转换为电压值，将该电压值发送至第二控制器；进而第二控制器再根据接收到的电压值和该检流电阻的电阻值确定出检测到的所述调整电路输出的电源信号的电流值。
继而，第二控制器计算所述检测到的电流值与所述电流调整指令指定的电流值的差值，计算出该差值的绝对值，判断该绝对值是否大于差值阈值，如果该绝对值大于差值阈值，则向调整电路反馈校准指令，以调整电路根据该校准指令及时调整输出的电源信号的电流值。需说明的是，该差值阈值根据调整电路的实际工作环境而可以预先调整。
进而，如果所述调整电路接收到校准指令，则代表调整电路输出的电源信号的电流值与所述电流调整指令指定的电流值偏差较大，需要该调整电路重新进行电流调整，具体地，根据所述校准指令指定的电流差值进行电流调整，实时保证调整电路输出的电源信号的电流值为所述电流调整指令指定的电流值。
在本发明一具体实施例中，所述调整电路还包括电压电流调整电路，该电压电流调整电路对市电进行整流滤波后，得到原始电源信号。为了根据校准指令校准调整电路输出的电源信号，在对原始电源信号的电压进行电压调整的过程中，调整电路会根据所述校准指令指定的电流差值确定电压调整指令，并将该电压调整指令发送至电压电流调整电路；该电压电流调整电路根据该电压调整指令进行电压调整，输出电压调整后的电源信号；由于电压调整后的电源信号会流过检流电阻，可通过该检流电阻重新检测电压调整后的电源信号的电流值是否为所述电流调整指令指定的电流值。当流过该检流电阻的电源信号（电压调整后的电源信号）的电流值为所述电流调整指令指定的电流值时，调整电路停止根据接收到的该校准指令确定电压调整指令并停止将该确定的电压调整指令发送至电压电流调整电路，电压电流调整电路停止进行电压调整。
这样，为了实时保证调整电路输出的电源信号的电流值为所述电流调整指令指定的电流值，通过检流电阻进行实时检测，如果电流过大或过小，均会反馈第二控制器，第二控制根据反馈的电流值生成校准指令并将该校准指令发送至调整电路，调整电路根据该校准指令确定电压调整指令并将该电压调整指令发送至电压电流调整电路，进而电压电流调整电路根据该电压调整指令进行电压调整，输出电压调整后的电源信号；然后可通过检流电阻继续检测电压调整后的电源信号的电流值是否为所述电流调整指令指定的电流值。
图3示出了本发明实施例提供的快速充电方法第二种具体流程，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号的步骤之后，所述快速充电方法还包括：
S7，所述充电适配器通过第二充电接口向所述移动终端的第一充电接口发送电源信号，以所述充电适配器对所述移动终端的电芯进行充电，其中，所述第一充电接口的第一电源线与所述第二充电接口的第二电源线连接，所述第一充电接口的第一地线与所述第二充电接口的第二地线连接，所述第一电源线为P个，所述第一地线为Q个，P大于或等于2，Q大于或等于2。
具体在本实施例中，现有的MICRO USB接口（包括充电适配器的MICRO USB插头，还包括移动终端的MICRO USB插座）仅具有一条电源线和一条地线，从而仅能通过该条电源线和该条地线形成充电回路，进而充电电流通常只有几百毫安，也通常不会超过3A。
为此，本实施例提供了能够支持大电流充电（3A及以上的充电电流）的第一充电接口。由于第一充电接口具有至少两条第一电源线和至少两条第一地线，因此，移动终端通过该第一充电接口，能够支持大电流充电。
另外，如果与第一充电接口插接的充电适配器为现有充电适配器（比如：使用MICRO USB接口进行充电的充电适配器），仍然能够进行普通充电（将MICRO USB接口仅有的电源线和地线与第一充电接口的一条第一电源线和一条第一地线对应插接），仅使用该条电源线和该条地线对电芯进行充电。
优选的是，所述第二电源线为P个，所述第二地线为Q个；
所述第一充电接口中的P个第一电源线与所述第二充电接口中的P个第二电源线对应连接，所述第一充电接口中的Q个第一地线与所述第二充电接口中的Q个第二地线对应连接。
在本实施例中，当第一充电接口与第二充电接口插接后，能够形成至少两个充电回路（充电回路的个数为：P与Q的较小值）。进而插接后的第一充电接口与第二充电接口，能够支持大电流充电（3A及以上的充电电流）。进而，充电适配器在电芯的电压值较小（例如：电芯的电压值低于4.3V）时可以输出大电流的电源信号（例如4A的电源信号），对移动终端的电芯进行大电流充电。
优选的是，现有MICRO USB接口的电源线和地线均采用导电率不到20%的金属铜箔制成，而本实施例提供的第一充电接口所包含的第一电源线和第一地线、第二充电接口所包含的第二电源线和第二地线均采用导电率能够达到50%的磷青铜C7025制成，从而，在采用至少两个充电回路（包括：至少两个第一电源线、至少两个第一地线、至少两个第二电源线以及至少两个第二地线）进行对移动终端的电芯充电的情况下能够进一步提高充电电流。更优的是，本实施例提供的第一充电接口所包含的第一电源线和第一地线、第二充电接口所包含的第二电源线和第二地线均采用导电率能够达到70%的铬青铜C18400制成，能更进一步地提高充电电流。
在本发明另一实施例中，所述移动终端还包括开关电路，所述开关电路的导通或关断由所述第一控制器指定。这样，因在移动终端已具有的充电电路的基础上，本实施例在移动终端还添加了开关电路；当第二充电接口与第一充电接口插接时，不但可以通过移动终端已具有的充电电路对电芯进行充电，还可由第一控制器控制开关电路的导通，进而充电适配器在通过已有的充电电路对电芯充电的同时，还可通过导通的开关电路对电芯进行充电。
优选的是，所述第一控制器响应所述第二控制器的所述快充请求的步骤之后，所述快速充电方法还包括：
所述第一控制器向所述开关电路发送导通指令；
所述开关电路在接收到所述导通指令时，导通所述充电适配器通过所述开关电路对所述电芯充电的充电回路。
具体地，当第一控制器接收到第二控制发送的快充请求后，如果第一控制器检测到有所述开关电路，能通过移动终端已有的充电电路对电芯进行充电的同时，还能通过该开关电路对电芯进行充电，实现对电芯进行大电流的充电。
继而，第一控制器反馈允许快充指令至所述第二控制器，已通知第二控制器：能够对电芯进行大电流的充电。同时，第一控制器还向所述开关电路发送导通指令。
开关电路在接收到所述导通指令时，开关电路导通；进而，所述充电适配器在通过移动终端已具有的充电电路对移动终端的电芯进行充电的同时，还可通过导通的所述开关电路对所述电芯充电。
优选的是，在所述第一控制器通过电芯连接器获取电芯的电压值的步骤之后，所述快速充电方法还包括：
所述第一控制器判断获取到的所述电芯的电压值是否大于关断电压阈值，如果获取到的所述电芯的电压值大于关断电压阈值，则向所述开关电路发送断开指令；
所述开关电路在接收到所述断开指令时，断开所述充电适配器通过所述开关电路对所述电芯充电的充电回路。
具体地，在整个对电芯充电的充电过程中，电芯连接器都会实时获取电芯的电压值，并将该电芯的电压值发送至第一控制器。当通过开关电路对电芯进行充电时，第一控制器实时判断获取到的所述电芯的电压值是否大于关断电压阈值；如果获取到的所述电芯的电压值大于关断电压阈值，则第一控制器向所述开关电路发送断开指令。所述开关电路在接收到所述断开指令时，所述开关电路断开。进而，所述充电适配器仅能通过移动终端已具有的充电电路对移动终端的电芯进行充电，不能够通过断开的所述开关电路对所述电芯充电。
优选的是，在获取到的所述电芯的电压值大于关断电压阈值，第二控制器也会向调整电路发送电流调整指令，通过该电流调整指令指定所述调整电路输出的小电流（例如：几百毫安）的电源信号。
在本发明一实施例中，所述第一控制器可以为移动终端现已具有的控制器。
在本发明另一实施例中，移动终端不但具有用于处理应用程序的第三控制器（第三控制器为现有的移动终端已配置的），还具有第一控制器，通过该第一控制器控制开关电路，以及控制对移动终端的电芯的充电。
进而，第一控制器将实时接收的电芯的电压值转发至第三控制器，由所述第三控制器判断获取到的所述电芯的电压值是否大于关断电压阈值；如果获取到的所述电芯的电压值大于关断电压阈值，则第三控制器向第一控制器发送第一断开指令；进而，第一控制器向所述开关电路发送断开指令。优选的是，如果获取到的所述电芯的电压值大于关断电压阈值，则第三控制器直接向所述开关电路发送断开指令。所述开关电路在接收到所述断开指令时，断开所述充电适配器通过所述开关电路对所述电芯充电的充电回路。
另外，当现有充电适配器具有的MICRO USB接口与移动终端的第一充电接口插接后，通过移动终端已具有充电电路进行充电。在移动终端已具有的充电电路的基础上，本实施例在移动终端还添加了开关电路；进而当第二充电接口与第一充电接口插接时，不但可通过移动终端已具有充电电路进行充电，还可由第一控制器控制开关电路的导通，进而充电适配器在通过已有的充电电流对电芯充电的同时还可通过导通的开关电路对电芯进行充电。
电芯连接器，还用于在检测电芯正极是否接触时生成正极接触信号，在检测电芯负极是否接触时生成负极接触信号，在检测电芯的温度时生成温度信号，将所述正极接触信号、所述负极接触信号以及所述温度信号发送至所述第一控制器。第一控制器将所述正极接触信号、所述负极接触信号以及所述温度信号转发至第三控制器。
进而，第三控制器根据接收到的所述正极接触信号判断移动终端的充电电路和开关电路的正极充电接触点是否良好接触电芯正极，根据接收到的所述负极接触信号判断为移动终端的充电电路和开关电路的负极充电接触点是否良好接触电芯负极，以及根据所述温度信号确定所述电芯的温度是否超过温度阈值。
进而，第三控制器，用于如果根据接收到的所述正极接触信号判定正极充电接触点未良好接触电芯正极，或者如果根据接收到的所述负极接触信号判定负极充电接触点未良好接触电芯负极，或者如果根据所述温度信号确定所述电芯的电压已超过温度阈值，则向第一控制器发送第一断开指令。进而第一控制器向开关电路发送断开指令，开关电路断开，以停止电适配器通过开关电路对电芯进行充电。
图4示出了本发明实施例提供的快速充电系统的第一种系统架构，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
需要说明的是，本发明实施例提供的快速充电系统与本发明实施例提供的快速充电方法相互适用。
本发明实施例提供的快速充电系统，所述快速充电系统包括：包括第二控制器21和调整电路22的充电适配器2，和包括电芯连接器、第一控制器11以及电芯的移动终端1；
所述第二控制器21，用于向所述第一控制器11发送快充请求，还用于向所述第一控制器11发送获取所述电芯的电压值的告知请求，还用于从阈值段表中查找出与所述电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路22发送所述电流调整指令，所述充电适配器2包括所述调整电路22，所述阈值段表记载有：一个或多个阈值段，和与阈值段具有映射关系的电流调整指令；
所述第一控制器11，用于响应所述第二控制器21的所述快充请求，并反馈允许快充指令至所述第二控制器21，还用于响应所述告知请求，通过电芯连接器获取所述电芯的电压值，并将获取到的所述电芯的电压值发送至所述第二控制器 21；
所述调整电路22，用于根据所述电流调整指令进行电流调整，输出电流调整后的电源信号。
图5示出了本发明实施例提供的快速充电系统的第二种系统架构，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，所述调整电路22包括电流检测电路221；
所述电流检测电路221，用于检测所述调整电路22输出的电源信号的电流值，并向所述第二控制器21发送检测到的电流值；
所述第二控制器21，还用于计算所述检测到的电流值与所述电流调整指令指定的电流值的差值，如果计算出的差值的绝对值大于差值阈值，则向所述调整电路22发送校准指令；
所述调整电路22，还用于根据所述校准指令指定的电流差值校准电源信号，输出校准后的电源信号，所述校准后的电源信号的电流值为：所述电流调整指令指定的电流值。
图6示出了本发明实施例提供的快速充电系统的第三种系统架构，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，所述充电适配器2还包括第二充电接口23，所述移动终端1还包括第一充电接口12；
所述充电适配器2，还用于通过所述第二充电接口23向所述第一充电接口12发送电源信号，以所述充电适配器2对所述移动终端1的电芯进行充电，其中，所述第一充电接口12的第一电源线与所述第二充电接口23的第二电源线连接，所述第一充电接口12的第一地线与所述第二充电接口23的第二地线连接，所述第一电源线为P个，所述第一地线为Q个，P大于或等于2，Q大于或等于2。
在本发明另一实施例中，所述第二电源线为P个，所述第二地线为Q个；
所述第一充电接口12中的P个第一电源线与所述第二充电接口23中的P个第二电源线对应连接，所述第一充电接口12中的Q个第一地线与所述第二充电接口23中的Q个第二地线对应连接。
图7示出了本发明实施例提供的快速充电系统的第四种系统架构，为了便于说明，仅示出了与本发明实施例相关的部分，详述如下。
在本发明另一实施例中，所述移动终端1还包括开关电路13；
所述第一控制器11，还用于向所述开关电路13发送导通指令，还用于判断获取到的所述电芯的电压值是否大于关断电压阈值，如果获取到的所述电芯的电压值大于关断电压阈值，则向所述开关电路13发送断开指令；
所述开关电路13，用于在接收到所述导通指令时，导通所述充电适配器2通过所述开关电路13对所述电芯充电的充电回路，还用于在接收到所述断开指令时，断开所述充电适配器2通过所述开关电路13对所述电芯充电的充电回路。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下做出若干等同替代或明显变型，而且性能或用途相同，都应当视为属于本发明由所提交的权利要求书确定的专利保护范围。

Claims (10)

  1. 一种快速充电方法，适用于包括充电适配器和移动终端的充电系统。其特征在于，所述快速充电方法包括：
    第二控制器向第一控制器发送快充请求，所述充电适配器包括所述第二控制器，所述移动终端包括所述第一控制器；
    所述第一控制器响应所述第二控制器的所述快充请求，并反馈允许快充指令至所述第二控制器；
    所述第二控制器向所述第一控制器发送获取电芯的电压值的告知请求，所述移动终端包括所述电芯；
    所述第一控制器响应所述告知请求，通过电芯连接器获取所述电芯的电压值，并将获取到的所述电芯的电压值发送至所述第二控制器，所述移动终端包括所述电芯连接器；
    所述第二控制器从阈值段表中查找出与所述电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路发送所述电流调整指令，所述充电适配器包括所述调整电路，所述阈值段表记载有：一个或多个阈值段，和与阈值段具有映射关系的电流调整指令；
    所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号。
  2. 如权利要求1所述的快速充电方法，其特征在于，所述调整电路包括电流检测电路；
    所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号的步骤，具体包括：
    所述电流检测电路检测所述调整电路输出的电源信号的电流值，并向所述第二控制器发送检测到的电流值；
    所述第二控制器计算所述检测到的电流值与所述电流调整指令指定的电流值的差值，如果计算出的差值的绝对值大于差值阈值，则向所述调整电路发送校准指令；
    所述调整电路根据所述校准指令指定的电流差值校准电源信号，输出校准后的电源信号，所述校准后的电源信号的电流值为：所述电流调整指令指定的电流值。
  3. 如权利要求1所述的快速充电方法，其特征在于，所述调整电路根据所述电流调整指令进行电流调整，输出电流调整后的电源信号的步骤之后，所述快速充电方法还包括：
    所述充电适配器通过第二充电接口向所述移动终端的第一充电接口发送电源信号，以所述充电适配器对所述移动终端的电芯进行充电，其中，所述第一充电接口的第一电源线与所述第二充电接口的第二电源线连接，所述第一充电接口的第一地线与所述第二充电接口的第二地线连接，所述第一电源线为P个，所述第一地线为Q个，P大于或等于2，Q大于或等于2。
  4. 如权利要求3所述的快速充电方法，其特征在于，所述第二电源线为P个，所述第二地线为Q个；
    所述第一充电接口中的P个第一电源线与所述第二充电接口中的P个第二电源线对应连接，所述第一充电接口中的Q个第一地线与所述第二充电接口中的Q个第二地线对应连接。
  5. 如权利要求1所述的快速充电方法，其特征在于，所述移动终端还包括开关电路，所述开关电路的导通或关断由所述第一控制器指定；
    所述第一控制器响应所述第二控制器的所述快充请求的步骤之后，所述快速充电方法还包括：
    所述第一控制器向所述开关电路发送导通指令；
    所述开关电路在接收到所述导通指令时，导通所述充电适配器通过所述开关电路对所述电芯充电的充电回路；
    在所述第一控制器通过电芯连接器获取电芯的电压值的步骤之后，所述快速充电方法还包括：
    所述第一控制器判断获取到的所述电芯的电压值是否大于关断电压阈值，如果获取到的所述电芯的电压值大于关断电压阈值，则向所述开关电路发送断开指令；
    所述开关电路在接收到所述断开指令时，断开所述充电适配器通过所述开关电路对所述电芯充电的充电回路。
  6. 一种快速充电系统，其特征在于，所述快速充电系统包括：包括第二控制器和调整电路的充电适配器，和包括电芯连接器、第一控制器以及电芯的移动终端；
    所述第二控制器，用于向所述第一控制器发送快充请求，还用于向所述第一控制器发送获取所述电芯的电压值的告知请求，还用于从阈值段表中查找出与所述电芯的电压值所在的阈值段匹配的电流调整指令，向调整电路发送所述电流调整指令，所述充电适配器包括所述调整电路，所述阈值段表记载有：一个或多个阈值段，和与阈值段具有映射关系的电流调整指令；
    所述第一控制器，用于响应所述第二控制器的所述快充请求，并反馈允许快充指令至所述第二控制器，还用于响应所述告知请求，通过电芯连接器获取所述电芯的电压值，并将获取到的所述电芯的电压值发送至所述第二控制器；
    所述调整电路，用于根据所述电流调整指令进行电流调整，输出电流调整后的电源信号。
  7. 如权利要求6所述的快速充电系统，其特征在于，所述调整电路包括电流检测电路；
    所述电流检测电路，用于检测所述调整电路输出的电源信号的电流值，并向所述第二控制器发送检测到的电流值；
    所述第二控制器，还用于计算所述检测到的电流值与所述电流调整指令指定的电流值的差值，如果计算出的差值的绝对值大于差值阈值，则向所述调整电路发送校准指令；
    所述调整电路，还用于根据所述校准指令指定的电流差值校准电源信号，输出校准后的电源信号，所述校准后的电源信号的电流值为：所述电流调整指令指定的电流值。
  8. 如权利要求6所述的快速充电系统，其特征在于，所述充电适配器还包括第二充电接口，所述移动终端还包括第一充电接口；
    所述充电适配器，还用于通过所述第二充电接口向所述第一充电接口发送电源信号，以所述充电适配器对所述移动终端的电芯进行充电，其中，所述第一充电接口的第一电源线与所述第二充电接口的第二电源线连接，所述第一充电接口的第一地线与所述第二充电接口的第二地线连接，所述第一电源线为P个，所述第一地线为Q个，P大于或等于2，Q大于或等于2。
  9. 如权利要求8所述的快速充电系统，其特征在于，所述第二电源线为P个，所述第二地线为Q个；
    所述第一充电接口中的P个第一电源线与所述第二充电接口中的P个第二电源线对应连接，所述第一充电接口中的Q个第一地线与所述第二充电接口中的Q个第二地线对应连接。
  10. 如权利要求6所述的快速充电系统，其特征在于，所述移动终端还包括开关电路；
    所述第一控制器，还用于向所述开关电路发送导通指令，还用于判断获取到的所述电芯的电压值是否大于关断电压阈值，如果获取到的所述电芯的电压值大于关断电压阈值，则向所述开关电路发送断开指令；
    所述开关电路，用于在接收到所述导通指令时，导通所述充电适配器通过所述开关电路对所述电芯充电的充电回路，还用于在接收到所述断开指令时，断开所述充电适配器通过所述开关电路对所述电芯充电的充电回路。
PCT/CN2014/077490 2014-01-28 2014-05-14 快速充电方法和系统 Ceased WO2015113345A1 (zh)

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