WO2023045967A1 - 终端充电系统、终端充电方法及存储介质 - Google Patents

终端充电系统、终端充电方法及存储介质 Download PDF

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Publication number
WO2023045967A1
WO2023045967A1 PCT/CN2022/120194 CN2022120194W WO2023045967A1 WO 2023045967 A1 WO2023045967 A1 WO 2023045967A1 CN 2022120194 W CN2022120194 W CN 2022120194W WO 2023045967 A1 WO2023045967 A1 WO 2023045967A1
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WO
WIPO (PCT)
Prior art keywords
terminal
switch
cable
power
charger
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PCT/CN2022/120194
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English (en)
French (fr)
Inventor
于冰
Original Assignee
中兴通讯股份有限公司
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Priority to EP22872013.2A priority Critical patent/EP4354691A1/en
Publication of WO2023045967A1 publication Critical patent/WO2023045967A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • 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 disclosure relates to the technical field of terminal charging, and in particular, to a terminal charging system, a terminal charging method, and a storage medium.
  • the present disclosure provides a terminal charging system, a terminal charging method, and a storage medium, aiming at solving the technical problem of terminal charging interruption during high-power charging.
  • the present disclosure provides a terminal charging system.
  • the terminal charging system includes: a terminal, the terminal includes a first signal ground interface, and the first signal ground interface is used for signal ground connection of the terminal; The second signal ground interface adapted to the signal ground interface; the charger, the charger charges the terminal through the cable; when the terminal is charging, one end of the cable is connected to the power ground of the charger, and through the docked first signal ground interface It is connected to the second signal ground, and the other end of the cable is connected to the signal ground of the terminal.
  • the present disclosure also provides a terminal charging method, which is applied to the above-mentioned terminal charging system.
  • the terminal charging method includes: after the charger starts charging the terminal, detecting the type of the cable; if the cable is the first type If the cable is a second type cable, the first switch is controlled by the first control module to conduct, wherein the first type cable is not configured with the first signal ground interface; closed, and the second control module controls the second switch connected to the power ground of the charger to turn on, and controls the second switch connected to the power ground of the terminal to turn off, wherein the second type cable is configured with the first signal ground interface and two second switches located at both ends of the cable.
  • the present disclosure also provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the following: The steps of any terminal charging method provided in this disclosure specification.
  • FIG. 1 is a schematic diagram of the connection between the terminal and the charger in the charging state of the terminal in the prior art
  • FIG. 2 is a schematic structural diagram of a terminal charging system provided by the present disclosure
  • FIG. 3 is a schematic diagram of the interface defined by USB Type-C (Universal Serial Bus Type-C, Universal Serial Bus Interface Outline Standard);
  • FIG. 4 is a schematic structural diagram of another terminal charging system provided by the present disclosure.
  • FIG. 5 is a schematic structural diagram of another terminal charging system provided by the present disclosure.
  • FIG. 6 is a schematic structural diagram of another terminal charging system provided by the present disclosure.
  • FIG. 7 is a schematic structural diagram of another terminal charging system provided by the present disclosure.
  • FIG. 8 is a schematic flowchart of a terminal charging method provided by the present disclosure.
  • FIG. 9 is a schematic flowchart of sub-steps of a terminal charging method provided by the present disclosure.
  • FIG. 10 is a flow chart of a terminal charging process provided by the present disclosure.
  • FIG. 1 is a schematic diagram of connection between a terminal and a charger in a charging state of a terminal in the prior art.
  • the power ground GND (Ground, wire ground) on the charger side is connected to the power ground GND on the terminal side through a cable
  • the signal ground GND on the charger side is connected to the signal ground GND on the terminal side through a cable
  • the signal ground and power ground GND of the charger side and the terminal side are common ground.
  • the charging current reaches the terminal from the charger through the cable. Since the cable must have a certain impedance (and with the aging of the cable shielding layer, the impedance tends to increase), when the charging current increases, it will As a result, the voltage difference between the signal ground GND on the charger side and the signal ground GND on the terminal side becomes larger, that is, the voltage drop of the communication signal will increase. Once the voltage drop of the communication signal is too large, the terminal may be disconnected from charging.
  • the present disclosure provides a terminal charging system, a terminal charging method, and a storage medium.
  • the terminal charging method can be applied to a terminal charging system, so as to avoid the problem of terminal charging interruption during the charging process.
  • FIG. 2 is a schematic structural diagram of a terminal charging system provided by the present disclosure.
  • the terminal charging system includes a terminal, a cable and a charger, and the terminal and the charger are electrically connected through a cable.
  • the terminals include but are not limited to electronic devices such as mobile phones, tablet computers, and wearable devices.
  • the terminal includes a terminal power supply, a power ground GND, a signal ground GND, and a first signal ground interface
  • the first signal ground interface is used for connecting the signal ground GND of the terminal.
  • the cable includes a second signal ground interface adapted to the first signal ground interface of the terminal, that is, the second signal ground interface can be docked with the first signal ground interface.
  • the charger includes a power supply, power ground GND and signal ground GND. The power supply of the charger is connected to the terminal power supply through a cable, the power ground GND of the charger is connected to the power ground GND of the terminal through a cable, and the charger charges the terminal through the cable.
  • one end of the cable is connected to the power ground GND of the charger, and the other end of the cable is connected to the signal ground GND of the terminal through the docked first signal ground interface and the second signal ground interface, thereby realizing terminal
  • the power ground GND is separated from the signal ground GND. In this way, even if the charging current is large, the voltage drop of the communication signal will not be too large, thereby avoiding the interruption of charging of the terminal.
  • FIG. 3 is a schematic diagram of the interface defined by USB Type-C (Universal Serial Bus Type-C, the universal serial bus interface standard), in which A1 and B1 are a pair of GND (Ground, wire grounding) tubes A2 is TX1+ (transport, sending) pin, B2 is TX2+ pin, A3 is TX1- pin, B3 is TX2- pin, A4 and B4 are a pair of Vbus (bus power, power supply wiring) pins, A5 and B5 are a pair of CC (Configuration Channel, configuration channel) pins: CC1, CC2, A6 and B6 are a pair of D+ (Date, data line) pins, A7 and B7 are a pair of D- pins, A8 and B8 is a pair of SBU (Side Band Use, sideband channel) pins: SBU1, SBU2, A9 and B9 are a pair of Vbus pins, A10 is RX2-(receive, receiving) pins, B10 is RX2-(
  • the first signal ground interface is configured by the idle SBU1/SBU2 pins.
  • the definition of a pair of GND pins located at symmetrical positions in the USB Type-C defined interface is modified to configure the first signal ground interface. That is, the pair of GND pins A1 and B1 is modified to define the interface for configuring the first signal, or the pair of GND pins A12 and B12 is modified to define the interface for configuring the first signal.
  • a pair of GND pins in symmetrical positions are used to support the positive and negative insertion of cables.
  • a new preset pin is added, such as A13/B13, which will The newly added preset pins are defined and configured as the ground interface of the first signal.
  • the second signal interface is compatible with the first signal interface, and the configuration of the second signal interface is similar to the configuration of the first signal interface, which will not be repeated here.
  • the terminal further includes a first switch, one side of the first switch is connected to the signal ground of the terminal, and the other side of the first switch is connected to the power ground of the terminal.
  • the signal ground GND of the terminal needs to be able to match the power ground GND. Therefore, a first switch is added in the terminal, and the first switch defaults to the normally open state.
  • the terminal further includes a switch 1 , one side of the switch 1 is connected to the signal ground GND of the terminal, and the other side of the switch 1 is connected to the power ground GND of the terminal.
  • the terminal When the terminal is charging, it uses an ordinary standard Type-C cable, that is, a cable that does not include the second signal ground interface, so that the switch 1 is turned on. At this time, the terminal signal ground GND and the power ground GND share the same ground, so that Make sure the PD communication is working properly.
  • Type-C cable that is, a cable that does not include the second signal ground interface
  • the switch 1 When the terminal is charged with an improved cable (non-standard Type-C cable), that is, when the cable includes the second signal ground interface, the switch 1 is turned off. At this time, the signal ground GND and the terminal signal ground The separation of power ground and GND overcomes the excessive voltage drop of the communication signal of PD communication, thereby avoiding the problem of terminal disconnection.
  • an improved cable non-standard Type-C cable
  • the terminal further includes a first control module, wherein the first control module is connected to the first switch, and the first control module is configured to control the first switch to be turned on/off.
  • the terminal also includes a control module 1 connected to the switch 1 .
  • a control module 1 connected to the switch 1 .
  • the switch 1 is controlled to be turned on through the control module 1 .
  • an improved cable is used, and the switch 1 is controlled to be disconnected by the control module 1 .
  • the cable further includes two second switches respectively disposed at both ends of the cable, one of the second switches is connected to the power ground of the charger, and the other second switch is connected to the power ground of the terminal.
  • the second switch connected to the power ground of the charger is turned on, and the second switch connected to the power ground of the terminal is turned off.
  • the cable further includes a switch 2 and a switch 3, wherein one end of the switch 2 and the switch 3 are both connected to the second signal ground interface, the other end of the switch 2 is connected to the power ground GND of the charger, and the switch The other end of 3 is connected to the power ground GND of the terminal.
  • the switch 2 When the terminal is charged, the switch 2 is turned on and the switch 3 is turned off. At this time, the signal ground GND of the terminal is separated from the power ground GND, which overcomes the excessive voltage drop of the communication signal of the PD communication, thereby avoiding the terminal off-charging The problem.
  • the cable further includes a second control module, wherein the second control module is connected to two second switches.
  • the second control module is used for controlling one of the two second switches to be turned on and the other second switch to be turned off.
  • the second control module is used to control the second switch connected to the power ground GND of the charger to be turned on, and the second switch connected to the power ground GND of the terminal to be turned off.
  • the cable further includes a control module 2 connected to the switch 2 and the switch 3 .
  • the control module 2 is connected to the control module 1 for interaction.
  • the control module 1 controls the switch 1 to turn off
  • the control module 2 controls the switch 2 to turn on and the switch 3 to turn off.
  • the signal ground of the terminal is separated from the power ground GND. In this way, even if the charging current is large, the communication signal voltage drop of the PD communication will not be too large, thereby avoiding the problem of terminal disconnection.
  • the present disclosure also provides a terminal charging method, please refer to FIG. 8 , which is a schematic flowchart of a terminal charging method provided in the present disclosure.
  • the terminal charging method includes steps S101 to S103.
  • Step S101 after the charger starts charging the terminal, detect the type of the cable.
  • the cables include but not limited to the first type cables and the second type cables, the first type cables are not equipped with the first signal interface, the second type cables are equipped with the first signal interface and the end of the two second switches.
  • the first type of cable is an ordinary standard Type-C cable
  • the second cable is an improved non-standard Type-C cable.
  • the ID chip of the cable and the computing processor perform handshaking to detect whether the cable is of the first type or the second type through the ID chip. For example, whether the detection cable is an ordinary standard Type-C cable or an improved non-standard Type-C cable.
  • Step S102 if the cable is a first type cable, the first control module controls the first switch to be turned on, wherein the first type cable is not configured with a first signal ground interface.
  • the first control module controls the first switch to be turned on, wherein the first type cable is not configured with a first signal ground interface.
  • the cable is an ordinary standard Type-C cable
  • the charging current is limited, and the switch 1 is controlled to be turned on through the control module 1 in the terminal.
  • the signal ground and power ground GND of the terminal share the same ground, so as to ensure the normal operation of PD communication, so as to achieve compatibility with ordinary standard Type-C cables.
  • Step S103 if the cable is the second type of cable, the first control module controls the first switch to turn off, and the second control module controls the second switch connected to the power ground of the charger to turn on, and controls the connection with the terminal
  • the second switch connected to the power ground is turned off, wherein the second type cable is configured with a first signal ground interface and two second switches located at two ends of the cable.
  • the switch 1 is controlled to be closed by the control module 1 in the terminal, and the control and charging are controlled and charged by the control module 2 in the improved non-standard Type-C cable
  • the switch 2 connected to the power ground GND of the terminal is turned on, and the switch 3 connected to the power ground GND of the terminal is controlled to be turned off.
  • the signal ground of the terminal is separated from the power ground GND, which overcomes the excessive voltage drop of the communication signal of the PD communication, thereby avoiding the problem of terminal disconnection.
  • step S103 may include substeps S1031 to S1034.
  • Sub-step S1031 start low-power charging, and determine the second switch connected to the power ground of the charger and the second switch connected to the power ground of the terminal among the two second switches according to the current direction.
  • the switch 1 is controlled by the control module 1 in the terminal to conduct, and through the improved non-standard Type-C cable
  • the control module 2 controls both the switch 2 and the switch 3 to be turned on so as not to affect the low-power charging function.
  • the voltage drop of the communication signal is small, and there will be no interruption of charging.
  • a voltage drop occurs between the power ground GND of the charger and the power ground GND of the terminal at the detection points at both ends of the cable, that is, the corresponding voltages of switch 2 and switch 3 are different.
  • the low voltage point is close to the charger side
  • the high voltage point is close to the terminal side, that is, if the voltage of switch 2 is low and the voltage of switch 3 is high, the switch 2 is connected to the power ground GND of the charger, and the power ground of the terminal is connected to the switch 2.
  • Ground GND is connected to switch 3.
  • the switch 3 is connected to the power ground GND of the charger, and the switch 2 is connected to the power ground GND of the terminal.
  • the second control module controls the second switch connected to the power ground of the charger to turn on, and controls the second switch connected to the power ground of the terminal to turn off.
  • the control module 2 through the cable controls the switch 2 connected to the power ground GND of the charger to conduct on, and control the switch 3 connected to the power ground GND of the terminal to be turned off.
  • Sub-step S1033 detecting whether the power path has reached a steady state.
  • Sub-step S1034 when the power path reaches a steady state, control the first switch to be turned off by the first control module.
  • the control module 1 in the terminal controls the switch 1 to close, so that the signal ground of the terminal is separated from the power ground GND.
  • the first control module when the power path reaches a steady state, after the first control module controls the first switch to be turned off, it may include: starting high-power charging.
  • FIG. 10 is a flow chart of the terminal charging process. Based on the terminal charging system shown in FIG. 7, the specific process of terminal charging is as follows: A1): Insert the charger and detect the cable type. A2): If it is a non-improved cable (ordinary standard Type-C cable), the charging current is limited, and the switch 1 is controlled to be turned on, which is consistent with the terminal charging method in the prior art. A3): If it is an improved cable (non-standard Type-C cable), the control switch 1, switch 2, and switch 3 are all turned on so as not to affect the low-power charging function.
  • A1 Insert the charger and detect the cable type.
  • A2) If it is a non-improved cable (ordinary standard Type-C cable), the charging current is limited, and the switch 1 is controlled to be turned on, which is consistent with the terminal charging method in the prior art.
  • A3) If it is an improved cable (non-standard Type-C cable), the control switch 1, switch 2, and switch 3 are all turned on so as not to affect the low-power charging function.
  • the cable type is detected, and if the cable is the first type of cable (the first type of cable is not configured with the first signal ground interface), the first signal interface is configured through the first A control module controls the conduction of the first switch to limit the charging current; if the cable is a second type cable (the second type cable is equipped with a first signal ground interface and two second switches located at both ends of the cable), The first control module controls the first switch to be turned off, and the second control module controls the second switch connected to the power ground of the charger to be turned on, and controls the second switch connected to the terminal's power ground to be turned off. At this time , The signal ground of the terminal is separated from the power ground, so that even if the charging current is large, the signal voltage drop will not be too large, thereby avoiding the problem of terminal disconnection.
  • the present disclosure also provides a storage medium for computer-readable storage.
  • the storage medium stores one or more programs, and one or more programs can be executed by one or more processors to implement any of the functions provided in the present disclosure specification.
  • the steps of a terminal charging method are not limited to.
  • the storage medium may be an internal storage unit of the terminal charging system of the foregoing embodiment, such as a hard disk or a memory of the terminal charging system.
  • the storage medium can also be an external storage device of the terminal charging system, such as a plug-in hard disk equipped on the terminal charging system, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card) and so on.
  • the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute.
  • Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit .
  • Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .
  • the present disclosure provides a terminal charging system, a terminal charging method, and a storage medium.
  • the terminal charging system includes a terminal, a cable, and a charger, wherein the terminal includes a first signal interface, and the first signal interface is used for the signal ground of the terminal.
  • the cable includes a second signal ground interface adapted to the first signal ground interface, when the charger is charging the terminal, one end of the cable is connected to the power ground of the charger, and is connected to the first signal ground interface through the docked first signal ground interface.
  • the second signal ground interface, the other end of the cable is connected to the signal ground of the terminal, thereby realizing the separation of the signal ground and the power ground of the terminal, so that even if the charging current is large, it will not cause excessive signal voltage drop, thereby avoiding The problem of terminal disconnection.
  • the technical solution of the present disclosure realizes continuous charging of the terminal during the high-power charging process.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本公开提供一种终端充电系统、终端充电方法及存储介质，属于终端充电领域。该终端充电系统包括：终端，终端包括第一信号地接口，第一信号地接口用于终端的信号地连接；线缆，线缆包括与第一信号地接口适配的第二信号地接口；充电器，充电器通过线缆为终端充电；在终端充电时，线缆的一端与充电器的功率地相连，线缆的另一端通过第二信号地接口以及第一信号地接口与终端的信号地相连。

Description

终端充电系统、终端充电方法及存储介质
相关申请的交叉引用
本公开要求享有2021年09月26日提交的名称为“终端充电系统、终端充电方法及存储介质”的中国专利申请CN202111131865.8的优先权，其全部内容通过引用并入本公开中。
技术领域
本公开涉及终端充电技术领域，尤其涉及一种终端充电系统、终端充电方法及存储介质。
背景技术
近年来，随着用户对智能手机等终端的使用体验要求的提升，用户对终端充电时间要求越来越短，为了满足用户需求，业界提出了PD(Power Delivery，电源供电标准)充电协议，旨在完成大功率充电的标准化。不断增加的大功率充电的需求，需要充电器输出的电流从以前的1～2A，增加到3～5A，充电器输出充电电流升高。而由于终端的信号地与功率地是共地的，当电流升高后，会导致负责PD通讯的信号的压降变大，从而引发信号完整性变差，最终导致充电出现断充等技术问题。
因此，如何避免终端在大功率充电过程中出现断充成为亟待解决的技术问题。
发明内容
本公开提供一种终端充电系统、终端充电方法及存储介质，旨在解决终端在大功率充电过程中出现断充的技术问题。
第一方面，本公开提供一种终端充电系统，终端充电系统包括：终端，终端包括第一信号地接口，第一信号地接口用于终端的信号地连接；线缆，线缆包括与第一信号地接口适配的第二信号地接口；充电器，充电器通过线缆为终端充电；在终端充电时，线缆的一端与充电器的功率地相连，且通过对接的第一信号地接口与第二信号地接口，线缆的另一端与终端的信号地相连。
第二方面，本公开还提供一种终端充电方法，应用于如上述的终端充电系统，终端充电方法包括：在充电器对终端开启充电后，检测线缆类型；若线缆为第一类型线缆，则通过第一控制模块控制第一开关导通，其中，第一类型线缆未配置第一信号地接口；若线缆为第二类型线缆，则通过第一控制模块控制第一开关关闭，且通过第二控制模块控制与充电器的功率地相连的第二开关导通、以及控制与终端的功率地相连的第二开关断开，其中，第二类型 线缆配置有第一信号地接口和位于线缆两端的两个第二开关。
第三方面，本公开还提供一种存储介质，用于计算机可读存储，其中，存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现如本公开说明书提供的任一项终端充电方法的步骤。
附图说明
为了更清楚地说明本公开技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术终端充电状态下，终端和充电器的连接示意图；
图2为本公开提供的一种终端充电系统的结构示意图；
图3为USB Type-C(Universal Serial Bus Type-C，通用串行总线接口外形标准)定义接口的结构示意图；
图4为本公开提供的另一种终端充电系统的结构示意图；
图5为本公开提供的另一种终端充电系统的结构示意图；
图6为本公开提供的另一种终端充电系统的结构示意图；
图7为本公开提供的另一种终端充电系统的结构示意图；
图8为本公开提供的一种终端充电方法的流程示意图；
图9为本公开提供的一种终端充电方法的子步骤流程示意图；
图10为本公开提供的一种终端充电过程的流程图。
具体实施方式
下面将结合本公开中的附图，对本公开中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
附图中所示的流程图仅是示例说明，不是必须包括所有的内容和操作/步骤，也不是必须按所描述的顺序执行。例如，有的操作/步骤还可以分解、组合或部分合并，因此实际执行的顺序有可能根据实际情况改变。
应当理解，在此本公开说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本公开。如在本公开说明书和所附权利要求书中所使用的那样，除非上下文清楚地 指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。
请参照图1，图1为现有技术终端充电状态下，终端和充电器的连接示意图。
如图1所示，充电器侧的功率地GND(Ground，电线接地端)通过线缆连接终端侧的功率地GND，充电器侧的信号地GND通过线缆连接终端侧的信号地GND，且充电器侧和终端侧的信号地GND和功率地GND共地。在终端充电过程中，充电电流从充电器经过线缆到达终端，由于线缆必然存在一定阻抗(且随着线缆屏蔽层的老化，阻抗有变大趋势)，当充电电流增大时，会导致充电器侧的信号地GND与终端侧的信号地GND电压差变大，也即通讯信号压降会增大，而一旦通讯信号压降过大，就可能会导致终端断充。
为了解决上述问题，本公开提供一种终端充电系统、终端充电方法及存储介质。其中，该终端充电方法可应用于终端充电系统中，以避免终端在充电过程中出现断充的问题。
下面结合附图，对本公开的一些实施例作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参照图2，图2为本公开提供的一种终端充电系统的结构示意图。
如图2所示，该终端充电系统包括终端、线缆以及充电器，终端与充电器通过线缆电连接。需要说明的是，终端包括但不限于手机、平板电脑、穿戴式设备等电子设备。
其中，终端包括终端电源、功率地GND、信号地GND以及第一信号地接口，该第一信号地接口用于终端的信号地GND连接。线缆包括与终端的第一信号地接口适配的第二信号地接口，也即第二信号地接口可以与第一信号地接口对接。充电器包括电源、功率地GND以及信号地GND，充电器的电源通过线缆连接终端电源，充电器的功率地GND通过线缆连接终端的功率地GND，充电器通过线缆为终端充电。在终端充电时，线缆的一端与充电器的功率地GND相连，且通过对接的第一信号地接口与第二信号地接口，线缆的另一端与终端的信号地GND相连，从而实现终端的功率地GND与信号地GND分离。这样，即使充电电流大，也不会导致通讯信号压降过大，从而避免了终端断充。
请参照图3，图3为USB Type-C(Universal Serial Bus Type-C，通用串行总线接口外形标准)定义接口的结构示意图，其中A1和B1为一对GND(Ground，电线接地端)管脚，A2为TX1+(transport，发送)管脚，B2为TX2+管脚，A3为TX1-管脚，B3为TX2-管脚，A4和B4为一对Vbus(bus power，电源接线)管脚，A5和B5为一对CC(Configuration Channel，配置通道)管脚：CC1、CC2，A6和B6为一对D+(Date，数据线)管脚，A7和B7为一对D-管脚，A8和B8为一对SBU(Side Band Use，边带通道)管脚：SBU1、SBU2，A9和B9为一对Vbus管脚，A10为RX2-(receive，接收)管脚，B10为RX1-管脚，A11为RX2+管脚，B11为RX1+管脚，A12和B12为一对GND管脚。
在一示例性实施例中，若USB Type-C定义接口中的SBU1/SBU2管脚闲置，由闲置的SBU1/SBU2管脚配置第一信号地接口。
在另一示例性实施例中，将USB Type-C定义接口中位于对称位置的一对GND管脚修改定义，配置第一信号地接口。也即由A1和B1这一对GND管脚修改定义配置第一信号地接口，或者由A12和B12这一对GND管脚修改定义配置第一信号地接口。采用对称位置的一对GND管脚，以便于支持线缆的正反插。
在另一示例性实施例中，在现有Type-C定义基础上，也即在图3所示USB Type-C定义接口的基础上，新增加一个预置管脚，如A13/B13，将新增的预置管脚进行定义配置第一信号地接口。
第二信号地接口与第一信号地接口适配，第二信号地接口的配置与第一信号地接口的配置类似，在此不再赘述。
在一示例性实施例中，终端还包括第一开关，第一开关一侧与终端的信号地相连，另一侧与终端的功率地相连。
考虑到对普通标准Type-C线缆的兼容，需要终端的信号地GND能够对上功率地GND，因此，在终端中增设一个第一开关，第一开关默认为常断开状态。例如，如图4所示，终端还包括开关1，开关1的一侧与终端的信号地GND相连，开关1的另一侧与终端的功率地GND相连。
当终端进行充电时采用的是普通标准Type-C线缆，也即不包括第二信号地接口的线缆，使开关1导通，此时，终端信号地GND和功率地GND共地，从而保证PD通讯是正常工作的。
当终端进行充电时采用的是改进型线缆(非标准Type-C线缆)，也即包括第二信号地接口的线缆时，使开关1断开，此时，终端的信号地GND和功率地GND分离，克服了PD通讯的通讯信号压降过大，从而避免了终端断充的问题。
在一示例性实施例中，终端还包括第一控制模块，其中，第一控制模块与第一开关连接，第一控制模块用于控制第一开关导通/断开。
例如，如图5所示，终端还包括与开关1连接的控制模块1，当终端进行充电时采用的是普通标准Type-C线缆，通过控制模块1控制开关1导通。当终端进行充电时采用的是改进型线缆，通过控制模块1控制开关1断开。
在一示例性实施例中，线缆还包括分别设于线缆两端的两个第二开关，其中一个第二开关与充电器的功率地相连，另一个第二开关与终端的功率地相连。在终端充电时，与充电器的功率地相连的第二开关导通，与终端的功率地相连的第二开关断开。
通过在线缆的两端分别增加一个第二开关，这样即使线缆的两端是不防呆设计，通过线缆两端的第二开关的导通/断开，也可以实现保证线缆接在充电器侧的一端保持与功率地GND相连，而终端侧的一端保持与信号地GND相连。例如，如图6所示，线缆还包括开关2和开关3，其中，开关2和开关3的一头均连接第二信号地接口，开关2的另一头与充电器的功率地GND相连，开关3的另一头与终端的功率地GND相连。
当对终端进行充电时，使开关2导通，开关3断开，此时，终端的信号地GND和功率地GND分离，克服了PD通讯的通讯信号压降过大，从而避免了终端断充的问题。
在一示例性实施例中，线缆还包括第二控制模块，其中，第二控制模块与两个第二开关连接。第二控制模块用于控制两个第二开关其中一个第二开关导通，另外一个第二开关断开。在终端充电时，第二控制模块用于控制与充电器的功率地GND相连的第二开关导通，与终端的功率地GND相连的第二开关断开。
例如，如图7所示，线缆还包括与开关2和开关3连接的控制模块2，在一示例性实施例中，控制模块2与控制模块1连接，进行交互。在终端充电时，通过控制模块1控制开关1断开，通过控制模块2控制开关2导通、开关3断开。
此时，终端的信号地GND和功率地GND分离，这样，即使充电电流大，也不会导致PD通讯的通讯信号压降过大，从而避免了终端断充的问题。
本公开还提供一种终端充电方法，请参照图8，图8为本公开提供的一种终端充电方法的流程示意图。
如图8所示，该终端充电方法包括步骤S101至步骤S103。
步骤S101、在充电器对终端开启充电后，检测线缆类型。其中，线缆包括但不限于第一类型线缆和第二类型线缆，第一类型线缆未配置第一信号地接口，第二类型线缆配置有第一信号地接口和位于线缆两端的两个第二开关。例如，第一类型线缆为普通标准Type-C线缆，第二线缆为改进型的非标准Type-C线缆。
在一示例性实施例中，在插入充电器后，线缆的ID芯片和运算处理器进行握手，通过ID芯片检测线缆是第一类型线缆还是第二类型线缆。例如，检测线缆是普通标准Type-C线缆还是改进型的非标准Type-C线缆。
步骤S102、若线缆为第一类型线缆，则通过第一控制模块控制第一开关导通，其中，第一类型线缆未配置第一信号地接口。例如，当线缆为普通标准Type-C线缆时，进行充电限流，并通过终端内的控制模块1控制开关1导通。此时，终端的信号地GND和功率地GND共地，从而保证了PD通讯是正常工作的，从而实现对普通标准Type-C线缆兼容。
步骤S103、若线缆为第二类型线缆，则通过第一控制模块控制第一开关关闭，且通过第 二控制模块控制与充电器的功率地相连的第二开关导通、以及控制与终端的功率地相连的第二开关断开，其中，第二类型线缆配置有第一信号地接口和位于线缆两端的两个第二开关。
例如，当线缆为改进型的非标准Type-C线缆时，通过终端内的控制模块1控制开关1关闭，且通过改进型的非标准Type-C线缆中的控制模块2控制与充电器的功率地GND相连的开关2导通、以及控制与终端的功率地GND相连的开关3断开。此时，终端的信号地GND和功率地GND分离，克服了PD通讯的通讯信号压降过大，从而避免了终端断充的问题。
在一示例性实施例中，如图9所示，步骤S103可以包括子步骤S1031至子步骤S1034。
子步骤S1031、启动小功率充电，根据电流方向确定两个第二开关中与充电器的功率地相连的第二开关，以及与终端的功率地相连的第二开关。
例如，当线缆为改进型的非标准Type-C线缆时，启动小功率充电，且通过终端内的控制模块1控制开关1导通，且通过改进型的非标准Type-C线缆中的控制模块2控制开关2和开关3均导通，以便不影响小功率充电功能。小功率充电时通讯信号压降较小，不会出现断充。
小功率充电时，充电器的功率地GND与终端的功率地GND在线缆两端检测点出现压降，也即开关2和开关3两处对应的电压不同。根据电流方向，可以确定开关2和开关3中与充电器的功率地GND相连的是开关2还是开关3，以及与终端的功率地GND相连的是开关3还是开关2。其中，电压低点为靠近充电器侧，电压高点为靠近终端侧，也即若开关2电压低，开关3电压高，则与充电器的功率地GND相连的是开关2，与终端的功率地GND相连的是开关3。反之，若开关2电压高，开关3电压低，则与充电器的功率地GND相连的是开关3，与终端的功率地GND相连的是开关2。
子步骤S1032、通过第二控制模块控制与充电器的功率地相连的第二开关导通，以及控制与终端的功率地相连的第二开关断开。
例如，若确定与充电器的功率地GND相连的是开关2，与终端的功率地GND相连的是开关3，则通过线缆的控制模块2控制与充电器的功率地GND相连的开关2导通，以及控制与终端的功率地GND相连的开关3断开。
子步骤S1033、检测功率地通路是否达到稳态。
在一示例性实施例中，通过检测充电器的功率地GND与终端的功率地GND在线缆两端检测点的压降，也即检测开关2和开关3两处的压降，若多次检测的压降一致，也即压降保持稳定，则确定充电器与终端对应的功率地通路达到稳态。
子步骤S1034、当功率地通路达到稳态时，通过第一控制模块控制第一开关关闭。
当确定充电器与终端对应的功率地通路达到稳态后，通过终端内的控制模块1控制开关1关闭，使得终端的信号地GND与功率地GND分离。
在一示例性实施例中，当功率地通路达到稳态时，通过第一控制模块控制第一开关关闭之后可以包括：启动大功率充电。
也即，在终端的信号地GND与功率地GND分离后，启动大功率充电，这样，即使充电电流大，也不会导致由于通讯信号压降变大而出现断充。
参照图10，图10为终端充电过程的流程图，基于图7所示的终端充电系统，终端充电的具体流程如下：A1)：插入充电器，检测线缆类型。A2)：若为非改进型线缆(普通标准Type-C线缆)，进行充电限流，并控制开关1导通，与现有技术终端充电方式一致。A3)：若为改进型线缆(非标准Type-C线缆)，控制开关1、开关2、开关3均导通，以便不影响小功率充电功能。A4)：启动小功率充电，据电流流向，控制与充电器的功率地GND相连的开关2导通，以及控制与终端的功率地GND相连的开关3断开。A5)：待功率地GND通路达到稳态后，控制开关1断开，以使信号地GND和功率地GND分离。A6)：启动大功率充电。
上述实施例提供的终端充电方法，在充电器对终端开启充电后，检测线缆类型，若线缆为第一类型线缆(第一类型线缆未配置第一信号地接口)，则通过第一控制模块控制第一开关导通，进行充电限流；若线缆为第二类型线缆(第二类型线缆配置有第一信号地接口和位于线缆两端的两个第二开关)，则通过第一控制模块控制第一开关关闭，且通过第二控制模块控制与充电器的功率地相连的第二开关导通、以及控制与终端的功率地相连的第二开关断开，此时，终端的信号地和功率地分离，这样，即使充电电流大，也不会导致信号压降过大，从而避免了终端断充的问题。
本公开还提供一种存储介质，用于计算机可读存储，存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现如本公开说明书提供的任一项终端充电方法的步骤。
其中，存储介质可以是前述实施例终端充电系统的内部存储单元，例如终端充电系统的硬盘或内存。存储介质也可以是终端充电系统的外部存储设备，例如终端充电系统上配备的插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(Secure Digital，SD)卡，闪存卡(Flash Card)等。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施例中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件， 或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
本公开提供一种终端充电系统、终端充电方法及存储介质，该终端充电系统包括终端、线缆和充电器，其中，终端包括第一信号地接口，第一信号地接口用于终端的信号地连接，线缆包括与第一信号地接口适配的第二信号地接口，在充电器为终端充电时，线缆的一端与充电器的功率地相连，且通过对接的第一信号地接口与第二信号地接口，线缆的另一端与终端的信号地相连，从而实现了终端的信号地与功率地分离，这样，即使充电电流大，也不会导致信号压降过大，从而避免了终端断充的问题。本公开的技术方案实现终端在大功率充电过程中不断充。
应当理解，在本公开说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本公开实施例序号仅仅为了描述，不代表实施例的优劣。以上所述，仅为本公开的具体实施例，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种终端充电系统，所述终端充电系统包括：
    终端，所述终端包括第一信号地接口，所述第一信号地接口用于所述终端的信号地连接；
    线缆，所述线缆包括与所述第一信号地接口适配的第二信号地接口；
    充电器，所述充电器通过所述线缆为所述终端充电；
    在所述终端充电时，所述线缆的一端与所述充电器的功率地相连，所述线缆的另一端通过所述第二信号地接口以及所述第一信号地接口与所述终端的信号地相连。
  2. 根据权利要求1所述的终端充电系统，其中，所述第一信号地接口由USB Type-C定义接口的SBU1/SBU2管脚配置而成，或所述第一信号地接口由USB Type-C定义接口上位于对称位置的一对GND管脚配置而成；或所述第一信号地接口由USB Type-C定义接口上新增的预置管脚配置而成。
  3. 根据权利要求1所述的终端充电系统，其中，所述终端还包括第一开关，所述第一开关一侧与所述终端的信号地相连，另一侧与所述终端的功率地相连。
  4. 根据权利要求3所述的终端充电系统，其中，所述终端还包括第一控制模块，所述第一控制模块与所述第一开关连接，用于控制所述第一开关导通/断开。
  5. 根据权利要求4所述的终端充电系统，其中，所述线缆还包括分别设于线缆两端的两个第二开关，其中一个第二开关与所述充电器的功率地相连，另一个第二开关与所述终端的功率地相连。
  6. 根据权利要求5所述的终端充电系统，其中，所述线缆还包括第二控制模块，所述第二控制模块与所述两个第二开关连接，用于在所述终端充电时，控制与所述充电器的功率地相连的第二开关导通，与所述终端的功率地相连的第二开关断开。
  7. 一种终端充电方法，应用于如权利要求6所述的终端充电系统，所述终端充电方法包括：
    在充电器对终端开启充电后，检测线缆类型；
    若线缆为第一类型线缆，则通过第一控制模块控制第一开关导通，其中，第一类型线缆未配置第一信号地接口；
    若线缆为第二类型线缆，则通过第一控制模块控制第一开关关闭，且通过第二控制模块控制与充电器的功率地相连的第二开关导通、以及控制与终端的功率地相连的第二开关断开，其中，第二类型线缆配置有第一信号地接口和位于线缆两端的两个第二开关。
  8. 根据权利要求7终端充电方法，其中，所述通过第一控制模块控制第一开关关闭，且通过第二控制模块控制与充电器的功率地相连的第二开关导通、以及控制与终端的功率地相 连的第二开关断开，包括：
    启动小功率充电，根据电流方向确定两个第二开关中与充电器的功率地相连的第二开关，以及与终端的功率地相连的第二开关；
    通过所述第二控制模块控制与充电器的功率地相连的第二开关导通，以及控制与终端的功率地相连的第二开关断开；
    检测功率地通路是否达到稳态；
    当功率地通路达到稳态时，通过所述第一控制模块控制所述第一开关关闭。
  9. 根据权利要求8所述的终端充电方法，其中，所述通过所述第一控制模块控制所述第一开关关闭之后，包括：
    启动大功率充电。
  10. 一种存储介质，用于计算机可读存储，所述存储介质存储有一个或者多个程序，所述一个或者多个程序可被一个或者多个处理器执行，以实现权利要求7至9中任一项所述的终端充电方法的步骤。
PCT/CN2022/120194 2021-09-26 2022-09-21 终端充电系统、终端充电方法及存储介质 WO2023045967A1 (zh)

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