WO2018137298A1

WO2018137298A1 - Charging cable

Info

Publication number: WO2018137298A1
Application number: PCT/CN2017/085782
Authority: WO
Inventors: 罗兵武
Original assignee: 华为技术有限公司
Priority date: 2017-01-24
Filing date: 2017-05-24
Publication date: 2018-08-02
Also published as: CN108886225A; CN108886225B

Abstract

Disclosed is a charging cable (300), comprising a first connector (301) connected to a first mobile device, a second connector (302) connected to a charging device, a third connector (303) connected to a second mobile device, an internal charging power wire (304) connected to the first connector and the second connector, and an external charging power wire (305) connected to the first connector and the third connector, wherein the internal charging power wire can realise that the charging device charges the first mobile device, and the external charging power wire can realise that the first mobile device charges the second mobile device. In this way, by means of one charging cable, not only can a charging device charge a first mobile device, but the first mobile device can also charge a second mobile device, thereby reducing the quantity of cables and achieving convenience in carriage.

Description

Charging cable

The present application claims priority to Chinese Patent Application No. PCT Application No. No. No. No. No. No. No. No. No. No. No. No. in.

Technical field

The present application relates to the field of charging cable technologies, and in particular, to a charging cable.

Background technique

At present, many mobile devices (such as mobile phones, Wireless-Fidelity (Wi-Fi) devices, mobile charging treasures, and other accessories) not only support the internal charging function, but also support the external charging function, that is, the charging device can The mobile device is charged, and the mobile device can also be charged as a charging device to other mobile devices.

In the case where the mobile device is internally charged, the charging device and the mobile device need to be connected by an internal charging cable (as shown in FIG. 1). In the case that the mobile device is externally charged, the mobile device and other mobile devices need to be connected through an external charging cable (as shown in FIG. 2).

Because the charging cable used in the case of charging and externally charging the mobile device is different, the mobile device needs to be configured with two charging cables, which makes the charging cable inconvenient to carry and reduces the user experience.

Summary of the invention

The embodiment of the present invention provides a charging cable for solving the problem that the mobile device with the internal charging and the external charging function needs to be configured with two different charging cables, which makes the charging cable inconvenient to carry and reduces the user experience.

In one aspect, the embodiment of the present application provides a charging cable, where the charging cable includes: a first interface, a second interface, a third interface, an internal charging power line, and an external charging power line; The first interface is configured to connect to the first mobile device; the second interface is configured to connect a charging device capable of charging the first mobile device; and the third interface is configured to connect to receive charging of the first mobile device a second mobile device; the internal charging power line is connected to the first interface and the second interface, and the charging device is configured to charge the first mobile device; the external charging power line is connected to the first An interface and the third interface are used by the first mobile device to charge the second mobile device.

In this way, when the first interface and the second interface of the charging cable are respectively connected to the first mobile device and the charging device, the charging device may Charging the first mobile device; when the first interface and the third interface of the charging cable are respectively connected to the first mobile device and the second mobile device, The first mobile device can read the second mobile device to charge. Therefore, the charging device can be used to charge the first mobile device by using the charging cable, and the first mobile device can be charged to the second mobile device to ensure the first The in-line charging and external charging functions of the mobile device, in addition, the charging cable can realize the number of reduced cables and is convenient to carry, thereby improving the user experience.

In a possible design, the second interface may generate a first connection message when the charging device is connected; The third interface may generate the second connection message when the second mobile device is connected; in the above case, the charging cable further includes: an indication module that can perform the following operations:

When the second interface is connected to the charging device, and the third interface is not connected to the second mobile device, acquiring the first connection message, and determining a first indication message according to the first connection message. The first indication message is used to indicate that the first mobile device accepts charging of the charging device;

When the second interface is not connected to the charging device, and the third interface is connected to the second mobile device, acquiring the second connection message, and determining a second indication message according to the second connection message. The second indication message is used to instruct the first mobile device to charge the second mobile device;

When the second interface is connected to the charging device, and the third interface is connected to the second mobile device, acquiring the first connection message and the second connection message, and according to the first connection message And determining, by the second connection message, the first indication message or the second indication message.

In this way, the instructing module may generate an indication message indicating that the first mobile device initiates an internal charging function or an external charging function according to the connection state of the second interface and the third interface, and implements the first movement. Power management of the device.

In a possible design, when the first interface is connected to the first mobile device, the first indication message or the second indication message generated by the indication module may be sent to the first mobile device.

In this way, the first mobile device may acquire the first indication message or the second indication message, perform corresponding operations, and implement an internal charging or an external charging function.

In a possible design, the charging cable further includes: a switch module that can control conduction and disconnection of the inner charging power line and the external charging power line.

In this way, the charging cable can control the conduction and disconnection of the two power lines to improve the safety of the charging cable.

In a possible design, in order to avoid security problems in the scenario where the three interfaces of the charging cable are simultaneously connected to the corresponding device, the switch module may control the charging power line and the external charging power source in the pair. Only one power line is turned on in the line, that is, when the switch module controls to turn on the internal charging power line, disconnect the external charging power line; when the switch module controls to turn on the external charging power source When the line is disconnected, the internal charging power source is disconnected.

In a possible design, the switch module can turn on or off the internal charging power line or the external charging power line by:

The switch module acquires the first connection message when the second interface generates the first connection message, and acquires the second connection message when the third interface generates the second connection message After the first connection message is obtained, the switch module turns on the internal charging power line; after acquiring the second connection message, the switch module turns on the external charging power line; After the first connection message and the second connection message, the switch module disconnects the inner charging power line and the external charging power line.

In this way, the switch module can control the on and off of the two power lines according to the connection state of the second interface and the third interface, thereby implementing internal charging and external charging of the first mobile device. Features. In addition, after the switch module acquires the first connection message and the second connection message, the two power lines are disconnected at the same time, so that the three interfaces of the charging cable can be prevented from simultaneously connecting the corresponding devices. The safety problem caused by the time increases the safety when charging with the charging cable.

The switch module acquires a first indication message or a second indication message generated by the indication module; after acquiring the first indication message, the switch module turns on the internal charging power line; After the two indication messages, the switch module turns on the external charging power line.

In this way, the switch module can control the on and off of the two power lines according to the operation indicating the execution of the first mobile device, thereby implementing the inbound charging and external charging functions of the first mobile device.

In one possible design, the first connection message is represented by a high level or a low level; the second connection message is represented by a high level or a low level.

In one possible design, the first indication message is represented by a high level, the second indication message is represented by a low level; or the first indication message is represented by a low level, the second indication message Expressed by high level.

In a possible design, the first interface is: a Type A interface, a Type B interface, a Type C interface, a Micro Micro Universal Serial Bus USB interface, a Mini Mini USB interface, or a Lightning Lightning interface; The interface is: Type A interface, Type B interface, Type C interface, Micro USB interface, Mini USB interface, or Lightning interface; the third interface is: Type A interface, Type B interface, Type C interface, Micro USB interface, Mini USB interface, or Lightning interface.

In this way, the adaptability of the charging cable can be improved.

In the embodiment of the present application, the charging cable includes three interfaces, where the three interfaces are respectively a first interface that connects the first mobile device, a second interface that connects the charging device, and a third interface that connects the second mobile device. Wherein the first mobile device has an in-charge and an external charging function, the charging device is capable of charging the first mobile device, and the second mobile device is capable of accepting charging of the first mobile device; The charging cable further includes an inner charging power line and an external charging power line, wherein the inner charging power line is connected to the first interface and the second interface, and the charging device can be implemented to the first The mobile device is charged, and the external charging power line is connected to the first interface and the third interface, so that the first mobile device can charge the second mobile device. Therefore, the charging device can be used to charge the first mobile device by using the charging cable, and the first mobile device can be charged to the second mobile device to ensure the first The in-line charging and external charging functions of the mobile device, in addition, the charging cable can realize the number of reduced cables and is convenient to carry, thereby improving the user experience.

DRAWINGS

1 is a diagram showing an example of an inward charging cable provided by the prior art;

2 is an example of an external charging cable provided by the prior art.

3 is a structural diagram of a charging cable according to an embodiment of the present application;

4 is a schematic diagram of a part of a circuit of a charging cable according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a charging cable according to an embodiment of the present application; FIG.

FIG. 6 is a schematic diagram of connection of a charging cable according to an embodiment of the present application; FIG.

FIG. 7 is a diagram showing an example of connection of another charging cable according to an embodiment of the present application.

detailed description

In the solution provided by the embodiment of the present application, the charging cable includes three interfaces, and the three interfaces are respectively connected. a first interface of the mobile device, a second interface connecting the charging device, and a third interface connecting the second mobile device, wherein the first mobile device has an in-charge and an external charging function, and the charging device is capable of The first mobile device is charged, and the second mobile device is capable of accepting charging of the first mobile device; the charging cable further includes an inner charging power line and an external charging power line, wherein the inner pair The charging power cable is connected to the first interface and the second interface, and the charging device can be charged to the first mobile device, and the external charging power cable is connected to the first interface and the third interface. The first mobile device can be enabled to charge the second mobile device. Therefore, the charging device can be used to charge the first mobile device by using the charging cable, and the first mobile device can be charged to the second mobile device to ensure the first The in-line charging and external charging functions of the mobile device, in addition, the charging cable can implement a reduced number of cables, which is convenient to carry, thereby improving the user experience.

Hereinafter, some of the terms in the present application will be explained to be understood by those skilled in the art.

1. A mobile device according to an embodiment of the present application, which provides a user with various service functions. For example, a device that provides voice and/or data connectivity to a user, which may be referred to as a terminal device or a User Equipment (UE). Specifically, the mobile device may be a handheld device (mobile phone, tablet), the like, an in-vehicle device, a wearable device, a computing device, a mobile station (MS), or the like.

In the embodiment of the present application, in order to distinguish two mobile devices in a scenario in which one mobile device charges another mobile device, the two mobile devices are divided into a first mobile device and a second mobile device. among them,

The first mobile device is a device that supports an in-charge and external charging function. Since the first mobile device also has an external charging function, the battery capacity of the first mobile device is generally large, and the first mobile device may be a mobile phone, a tablet computer, an in-vehicle device, a computing device, an MS, or the like. A device with a large battery capacity.

The second mobile device may be a device that only supports the in-charge function, such as a mobile phone, a tablet, a wearable device, or the like. Of course, the second mobile device can also support the external charging function, which is not limited in this application.

2. The power cable in the charging cable according to the embodiment of the present application is used for charging, that is, the power of the charging party is transmitted to the charged party. In the embodiment of the present application, the power line that transmits the power in the charging device to the first mobile device is referred to as the in-between charging power line, and the first mobile device is used as the reference point. The power line that is transmitted to the second mobile device is called an external charging power line.

3. A charging device according to an embodiment of the present application, for charging a mobile device. The charging device may be a power storage device such as a power adapter or a charging treasure.

4. The interface involved in the embodiment of the present application is a hardware interface (physical interface) for connecting a charging cable to another device. In the embodiment of the present application, the interface that connects the first mobile device is the first interface, and the interface that connects the charging device is the second interface, with the first mobile device that is charged with the internal charging and the external charging as the reference point. The interface connecting the second mobile device is a third interface.

With the continuous development of hardware interface technology, the current types of interfaces include: Type A interface, Type B interface, Type C interface, Micro (Universal Serial Bus (USB) interface, mini ( Mini) USB interface, or lightning Lightning interface. Therefore, the interface involved in the present application may be, but is not limited to, a port of the above type, and includes other types of interfaces generated by subsequent developments, which are not limited in this embodiment of the present application.

The current interface has a difference between the public port and the parent port. Therefore, the embodiment of the present application does not limit the form of the interface (the first interface, the second interface, and the third interface). The physical state of the interface can also be set according to the interface form of the mobile device and the charging device, or according to the adaptability of the charging cable.

For example, in general, the interface between the mobile device and the charging device is a female port, and the first interface and the second interface may be configured as a male port. In addition, in order to clearly distinguish the first interface and the third interface, the third interface may be configured as a female interface, and then, if the third interface connection interface is also a second mobile device of the female interface, The interface between the third interface and the second mobile device can also be connected through a connecting line with a male port at both ends. In this regard, the embodiments of the present application are not limited.

5, and / or, describe the association relationship of the associated object, indicating that there can be three relationships. For example, A and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone. The character "/" generally indicates that the contextual object is an "or" relationship.

In addition, it should be understood that in the description of the present application, the terms "first", "second" and the like are used only to distinguish the purpose of description, and are not to be understood as indicating or implying relative importance, nor as an indication. Or suggest the order.

The following describes the conventional internal charging cable and external charging cable.

In order to increase the power management of the mobile device supporting the internal charging and external charging functions, an identifier (ID) line, ID is included in a conventional charging cable (for example, an On the Go (OTG) cable). The level status of the line (or an indication message for ID line transmission) can determine the working role of the connected mobile device. The mobile device connected to the interface of one end of the charging cable may activate an internal charging function or an external charging function according to the level state of the ID line. In other words, the level status of the ID line may indicate Whether the mobile device is charging internally or externally.

In general, when the ID line is in a low state, the mobile device is instructed to externally charge; when the ID line is in a high state, the mobile device is instructed to be internally charged. For clarity of description, in the following example, an interface in the charging cable that outputs the level of the ID first to the mobile device is referred to as a main interface.

For example, in the scenario where the internal charging cable is connected to the mobile device on the main interface and the other interface is connected to the charging device, the ID line of the internal charging cable is at a high level, and the mobile device detects the ID line. Level state, determining that the ID line is at a high level (getting an indication message indicating that the internal charging function is activated), starting an internal charging function, and accepting the amount of power transmitted by the charging device through the internal charging cable .

For example, in the scenario where the external charging cable is connected to the first mobile device and the other interface is connected to the second mobile device, the ID line of the external charging cable is at a low level, and the first mobile device checks The level state of the ID line determines that the ID line is at a low level (gets an indication message indicating that the external charging function is activated), starts an external charging function, and transmits its own power through the external charging cable to the Said second mobile device.

The embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

The embodiment of the present application provides a charging cable. As shown in FIG. 3, the charging cable 300 may include:

a first interface 301 for connecting to the first mobile device;

a second interface 302 for connecting a charging device capable of charging the first mobile device;

a third interface 303 for connecting a second mobile device capable of accepting charging of the first mobile device;

The internal charging power line 304 is connected to the first interface 301 and the second interface 302 for charging the charging device to the first mobile device;

The external charging power line 305 is connected to the first interface 301 and the third interface 303 for charging the first mobile device to the second mobile device.

In this way, when the first interface 301 and the second interface 302 of the charging cable 300 are respectively connected to the first mobile device and the charging device, the charging device is passed through the charging cable 300. The first mobile device may be charged; the first interface 301 and the third interface 303 of the charging cable 300 are respectively connected to the When the first mobile device and the second mobile device are in use, the first mobile device can read the second mobile device charging through the charging cable 300. Therefore, the charging device can be used to charge the first mobile device by using the charging cable 300, and the first mobile device can be charged to the second mobile device, and the In addition, the charging cable 300 can implement a reduced number of cables and is easy to carry, thereby improving the user experience.

The first implementation manner is as follows: In order to implement power management on the first mobile device, the charging cable 300 may also generate an indication that the first mobile device initiates an internal charging function or an external charging function. Message. Optionally, the charging cable 300 may generate the indication message according to a connection state of the second interface 302 and the third interface 303.

Optionally, in the first implementation manner, the charging cable 300 can determine the connection status of the second interface 302 and the third interface 303 according to the following manner:

The second interface 302 is further configured to generate a first connection message when the charging device is connected;

The third interface 303 is further configured to generate the second connection message when the second mobile device is connected.

In this way, when the second interface 302 generates the first connection message, it indicates that the second interface 302 has been connected to the charging device; when the third interface 303 is generating the second connection message, It is indicated that the third interface 303 has been connected to the second mobile device.

Optionally, in the foregoing first implementation manner, when the charging cable 300 further includes the indication module 306, the charging cable 300 may generate the indication message by using the indication module 306 by using the following method. :

When the second interface 302 is connected to the charging device, and the third interface 303 is not connected to the second mobile device, acquiring the first connection message, and determining, according to the first connection message, the first An indication message, wherein the first indication message is used to indicate that the first mobile device accepts charging of the charging device; or

When the second interface 302 is not connected to the charging device, and the third interface 303 is connected to the second mobile device, acquiring the second connection message, and determining the second according to the second connection message. An indication message, wherein the second indication message is used to instruct the first mobile device to charge the second mobile device; or

When the second interface 302 is connected to the charging device, and the third interface 303 is connected to the second mobile device, acquiring the first connection message and the second connection message, and according to the first The connection message and the second connection message determine the first indication message or the second indication message.

Since the charging cable 300 has three interfaces, in the actual application, there are scenarios in which the three interfaces of the charging cable 300 are simultaneously connected to the corresponding device, that is, in the scenario, the first interface 301 is connected to the device. The first mobile device, the second interface 302 is connected to the charging device, and the third interface 303 is connected to the second mobile device. If the first mobile device implements the internal charging and the external charging function at the same time in the scenario, the security problem of the device may be caused. Therefore, in the above method, when the indicating module 306 acquires the first When the connection message and the second connection message are used, the indication module 306 can generate an indication message, so that the first mobile device can only perform internal charging or external charging, thereby improving the adoption of the charging cable. 300 safety when charging.

In a possible implementation, the indication module 306 may determine, according to the first connection message and/or the second connection message, the indication message (ie, the first indication message and the Second indication message).

In a possible implementation, the first connection message is represented by a high level or a low level; and the second connection message is represented by a high level or a low level.

In a possible implementation, the indication message may also be represented by a level, but it needs to be stated that the representation The levels of the first indication message and the second indication message are different. That is, the first indication message is represented by a high level, the second indication message is represented by a low level; or the first indication message is represented by a low level, and the second indication message is represented by a high level.

When the connection message (ie, the first connection message, the second connection message) and the indication message (the second indication message and the second indication message) are all represented by level, the indication module 306 may The setting algorithm is implemented by a set logic operation device, and the indication message is determined.

The operation is the same as the operation of the mobile device indicated by the level status of the conventional ID line, that is, the first indication message is indicated by a high level "1", and the second indication message is indicated by a low level "0". Referring to Table 1, the embodiment of the present application provides a correspondence between a connection message and an indication message:

Table 1

As shown in FIG. 3, in the first implementation manner, the first interface 303 is further configured to: when the first mobile device is connected, the first indication message generated by the indication module 306 or The second indication message is sent to the first mobile device.

Optionally, the charging cable 300 further includes a switch module 307 for controlling conduction and disconnection of the internal charging power line 304 and the external charging power line 305.

In a possible implementation, in order to avoid a security problem in the above scenario, the switch module 307 can control that only one power line in the internal charging power line 304 and the external charging power line 305 is turned on. That is, when the switch module 307 controls to turn on the internal charging power line 304, the external charging power line 305 is disconnected; when the switch module 307 controls to turn on the external charging power line 305, disconnect The internal charging power source 304.

The second implementation manner: the switch module 307 can control the turn-on and turn-off of the two power lines according to the connection message.

In the second implementation manner, the switch module 307 is specifically configured to:

Referring to FIG. 3, when the second interface generates the first connection message, acquiring the first connection message; and when the third interface generates the second connection message, acquiring the second Connection message

After obtaining the first connection message, turning on the internal charging power line 304; or

After acquiring the second connection message, turning on the external charging power line 305; or

After acquiring the first connection message and the second connection message, disconnecting the inner charging power line 304 and the external charging power line 305.

Referring to Table 2, the embodiment of the present application provides a correspondence between a connection message and two power line connections:

Table 2

第一连接消息First connection message	第二连接消息Second connection message	对内充电电源线Internal charging power cord	对外充电电源线External charging power cord
有Have	有Have	断开disconnect	断开disconnect

有Have	无no	导通Conduction	断开disconnect
无no	有Have	断开disconnect	导通Conduction
无no	无no	断开/导通Disconnect/conduct	断开/导通Disconnect/conduct

The switch module 307 can control the conduction and disconnection of the two power lines according to the connection state of the second interface 302 and the third interface 303, thereby implementing the pair of the first mobile device. Internal charging and external charging function. In addition, after the switch module 307 obtains the first connection message and the second connection message, the two power lines are disconnected at the same time, so that the three interfaces of the charging cable 300 can be prevented from being simultaneously connected. The safety problem caused by the device increases the safety when charging the charging cable 300.

The third implementation manner: the switch module 307 can further control the on and off of the two power lines according to the indication message generated by the indication module 306.

In the third implementation manner, the switch module 307 is specifically configured to:

Obtaining a first indication message or a second indication message generated by the indication module;

After obtaining the first indication message, turning on the internal charging power line; or

After acquiring the second indication message, turning on the external charging power line.

Referring to Table 3, the embodiment of the present application further provides a correspondence between the indication message and the connection status of the two power lines:

table 3

指示消息Indication message	对内充电电源线Internal charging power cord	对外充电电源线External charging power cord
第一指示消息First indication message	导通Conduction	断开disconnect
第二指示消息Second indication message	断开disconnect	导通Conduction
无no	导通/断开On/off	导通/断开On/off

Through the above method, the switch module 307 can control the on and off of the two power lines according to the operation indicating the execution of the first mobile device, thereby implementing internal charging and external charging of the first mobile device. Features.

In the embodiment of the present application, the types of the first interface 301, the second interface 302, and the third interface 303 are not limited. Optionally, the first interface is: a Type A interface, a Type B interface, a Type C interface, a Micro Micro Universal Serial Bus USB interface, a Mini Mini USB interface, or a Lightning Lightning interface;

The second interface is: a Type A interface, a Type B interface, a Type C interface, a Micro USB interface, a Mini USB interface, or a Lightning interface;

The third interface is: Type A interface, Type B interface, Type C interface, Micro USB interface, Mini USB interface, or Lightning interface.

In addition, the embodiment of the present application does not limit the form of the first interface 301, the second interface 302, and the third interface 303.

In a possible implementation, when the charging cable 300 supports the data transmission function, the charging cable 300 further includes a data line, and the data line is connected to the first interface 301 and the second interface. 302, and connecting the first interface 301 and the third interface 303, so that the data line can implement data transmission between the first mobile device and the charging device, and the first Data transfer between the mobile device and the second mobile device.

An embodiment of the present application provides a charging cable, where the charging cable includes three interfaces, where the three interfaces are respectively a first interface that connects the first mobile device, a second interface that connects the charging device, and a connection. a third interface of the mobile device, wherein the first mobile device has an in-charge and an external charging function, the charging device is capable of charging the first mobile device, and the second mobile device is capable of accepting the Charging of the first mobile device; the charging The electric cable further includes an inner charging power line and an external charging power line, wherein the inner charging power line is connected to the first interface and the second interface, and the charging device can be implemented to move to the first The device is charged, and the external charging power line is connected to the first interface and the third interface, so that the first mobile device can charge the second mobile device. Therefore, the charging device can be used to charge the first mobile device by using the charging cable, and the first mobile device can be charged to the second mobile device to ensure the first The in-line charging and external charging functions of the mobile device, in addition, the charging cable can realize the number of reduced cables and is convenient to carry, thereby improving the user experience.

Based on the above embodiments, an embodiment of the present application provides a possible circuit diagram of a charging cable. As shown in FIG. 4, when the first interface is connected to the first mobile device, and the second interface is connected to the charging device, the device in the circuit The combination Q2 outputs a high level, that is, a first indication message, and the first mobile device activates an in-charge function according to the first indication message. And the device combination Q1 in the circuit turns on the internal charging power line, so that the internal charging power line can transmit the power of the charging device to the first mobile device, and finally implement the first mobile device. In-line charging function.

It should be noted that the charging cable may also adopt a circuit similar to that described above to implement the external charging function of the first mobile device, and details are not described herein again.

Based on the above embodiments, an embodiment of the charging cable is also provided in the embodiment of the present application, as shown in FIG. 5 . It should be noted that, the embodiment of the present application does not limit the physical form of the charging cable, and FIG. 5 is only one of various physical forms of the charging cable provided by the embodiment of the present application. Wherein, when the first mobile device implements the in-charging function through the charging cable, the connection of the charging cable is as shown in FIG. 6: the first interface is connected to the first mobile device, The second interface is connected to the charging device. When the first mobile device implements the external charging function through the charging cable, the connection of the charging cable is as shown in FIG. 7. The first interface is connected to the first mobile device, and the third interface is connected. Second mobile device.

In summary, the embodiment of the present application provides a charging cable, where the charging cable includes three interfaces, and the three interfaces are respectively a first interface connecting the first mobile device and a second connecting the charging device. An interface, and a third interface connecting the second mobile device, wherein the first mobile device has an in-charge and an external charging function, the charging device being capable of charging the first mobile device, the second mobile The device is capable of accepting charging of the first mobile device; the charging cable further includes an inner charging power line and an external charging power line, wherein the inner charging power line connects the first interface and the second The interface, the charging device can be charged to the first mobile device, and the external charging power line is connected to the first interface and the third interface, so that the first mobile device can be moved to the second mobile device The device is charged. Therefore, the charging device can be used to charge the first mobile device by using the charging cable, and the first mobile device can be charged to the second mobile device to ensure the first The in-line charging and external charging functions of the mobile device, in addition, the charging cable can realize the number of reduced cables and is convenient to carry, thereby improving the user experience.

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

A charging cable, characterized in that the charging cable comprises:

a first interface for connecting to the first mobile device;

a second interface for connecting a charging device capable of charging the first mobile device;

a third interface for connecting a second mobile device capable of accepting charging of the first mobile device;

Connecting the first interface and the second interface to the charging device, and charging the first mobile device to the charging device;

And externally charging the power line, connecting the first interface and the third interface, for the first mobile device to charge the second mobile device.
A charging cable according to claim 1, wherein

The second interface is further configured to generate a first connection message when the charging device is connected;

The third interface is further configured to generate the second connection message when the second mobile device is connected;

The charging cable further includes: an indication module, configured to:

When the second interface is connected to the charging device, and the third interface is not connected to the second mobile device, acquiring the first connection message, and determining a first indication message according to the first connection message. The first indication message is used to indicate that the first mobile device accepts charging of the charging device; or

When the second interface is not connected to the charging device, and the third interface is connected to the second mobile device, acquiring the second connection message, and determining a second indication message according to the second connection message. The second indication message is used to instruct the first mobile device to charge the second mobile device; or

When the second interface is connected to the charging device, and the third interface is connected to the second mobile device, acquiring the first connection message and the second connection message, and according to the first connection message And determining, by the second connection message, the first indication message or the second indication message;

The first interface is further configured to send the first indication message or the second indication message generated by the indication module to the first mobile device when the first mobile device is connected.
The charging cable of claim 2, wherein the charging cable further comprises:

And a switch module, configured to control on and off of the inner charging power line and the external charging power line.
The charging cable of claim 3, wherein the switch module is specifically configured to:

Acquiring the first connection message when the second interface generates the first connection message; and acquiring the second connection message when the third interface generates the second connection message;

After obtaining the first connection message, turning on the internal charging power line; or

After obtaining the second connection message, turning on the external charging power line; or

After acquiring the first connection message and the second connection message, disconnecting the inner charging power line and the external charging power line.
The charging cable of claim 3, wherein the switch module is specifically configured to:

Obtaining a first indication message or a second indication message generated by the indication module;

After obtaining the first indication message, turning on the internal charging power line; or

After acquiring the second indication message, turning on the external charging power line.
A charging cable according to any of claims 2-5, characterized in that

The first connection message is represented by a high level or a low level;

The second connection message is represented by a high level or a low level.
A charging cable according to any of claims 2-6, characterized in that

The first indication message is represented by a high level, and the second indication message is represented by a low level; or

The first indication message is represented by a low level, and the second indication message is represented by a high level.
A charging cable according to any one of claims 1 to 7, wherein

The first interface is: a Type A interface, a Type B interface, a Type C interface, a Micro Micro Universal Serial Bus USB interface, a Mini Mini USB interface, or a Lightning Lightning interface;

The second interface is: a Type A interface, a Type B interface, a Type C interface, a Micro USB interface, a Mini USB interface, or a Lightning interface;

The third interface is: Type A interface, Type B interface, Type C interface, Micro USB interface, Mini USB interface, or Lightning interface.