WO2021043155A1

WO2021043155A1 - Usb charging cable, usb charging system, and desk lamp

Info

Publication number: WO2021043155A1
Application number: PCT/CN2020/112966
Authority: WO
Inventors: 童彦彰; 陈成均
Original assignee: 华乙半导体(深圳)有限公司
Priority date: 2019-09-06
Filing date: 2020-09-02
Publication date: 2021-03-11
Also published as: CN110707494A; CN110707494B; CN114402490A

Abstract

A USB charging cable and a USB charging system. The USB charging cable comprises: a first USB connector for connecting to the power output port of a power adapter; a second USB connector for connecting to a mobile terminal to be charged or a wireless charging coil; a determining unit located in the first USB connector or the second USB connector, and configured to determine whether the second USB connector is connected to said mobile terminal or the wireless charging coil; and a control unit located in the first USB connector or the second USB connector, and configured to control, according to the determining result of the determining unit, the connection of the wire in the first USB connector or the second USB connector. When the wired and wireless duplex power adapter is connected to both the mobile terminal to be charged and the wireless charging coil, both direct current and alternating current can be transmitted, thereby ensuring that power is supplied to both said mobile terminal and the wireless charging coil.

Description

USB charging cable, USB charging system and desk lamp

Technical field

The invention relates to the field of electronics, in particular to a USB charging cable, a USB charging system and a desk lamp.

Background technique

At present, more and more mobile terminals such as mobile phones, smart watches, and smart bracelets support wireless charging technology, that is, charging technology that does not require plugging in a charging cable. Compared with traditional wired charging technology, wireless charging technology can charge through electromagnetic induction, which is safer for people's bodies. At the same time, wireless charging technology can reduce the usage rate of the wired charging interface (wired data transmission interface) of the mobile terminal and reduce its wear rate.

However, for mobile terminals that support wireless charging, people's current social awareness is still not high, and their total usage is still limited. Therefore, for a long period of time, people will gradually develop from existing mobile terminals that only support wired charging to mobile terminals that support both wired and wireless charging, and eventually develop to mobile terminals that only support wireless charging. This is because a mobile terminal that only supports wireless charging will bring an obvious advantage, that is, eliminating the wired charging interface (wired data transmission interface) of the mobile terminal, promoting the miniaturization of the mobile terminal, and improving the waterproofness of the mobile terminal. In summary, people still face serious problems: mobile terminals that only support wired charging, mobile terminals that support both wired and wireless charging, and mobile terminals that only support wireless charging, these three types of mobile terminals coexist for a long time.

As for the power adapter combination for wireless charging, the current better design scheme includes the following three parts.

(1) A separate wireless charging transmitter, usually a thinner casing, is used to place the mobile terminal to be charged. The wireless charging transmitter includes at least one separate wireless charging transmitting coil, which performs wireless charging through the wireless charging receiving coil in the mobile terminal to be charged.

(2) A power adapter. The power adapter includes an AC current conversion circuit for converting city power (for example, 220V AC) into AC power (for example, 9V12W) suitable for the wireless charging transmitter coil.

(3) The AC charging cable is connected between the wireless charging transmitter and the power adapter, and is used to transmit the AC power suitable for the wireless charging transmitter coil.

Refer to the invention patent application of the patentee, a wired and wireless duplex power adapter is provided. The power adapter can detect and determine the wired and/or wireless type of the device to be charged connected to its power outlet, and switch on the wired charging unit and/or wireless charging unit accordingly according to the type. Specifically, if the power adapter determines that its power output port is connected to the mobile terminal to be charged, the power adapter connects to the wired charging unit to convert the mains power (for example, 220V AC power) into DC power (for example, 10V4A) suitable for the mobile terminal to be charged. And output; if the power adapter judges that its power output port is also connected to a wireless charging coil (the wireless charging coil can be placed on the wireless charging coil to be charged mobile terminal), then the power adapter is connected to the wireless charging unit, the mains (for example, 220V AC ) Is converted into alternating current suitable for the wireless charging coil (for example, 9V12W) and output. Furthermore, if necessary, the wired and wireless duplex power adapter can also connect the wired charging unit and the wireless charging unit at the same time, and simultaneously supply power to the mobile terminal to be charged and the wireless charging coil.

It can be seen that, for the charging cable connected to the power output port, when the power output port is connected to the mobile terminal to be charged, DC power is transmitted, and when the power output port is connected to the wireless charging coil, AC power is transmitted. However, when the power output port is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the current charging cable cannot transmit DC and AC power at the same time, which limits the application scope of the above-mentioned wired and wireless duplex power adapter.

Summary of the invention

The present invention aims to provide a USB charging cable, which can solve the problem that the USB charging cable in the related art cannot transmit direct current and alternating current at the same time.

According to one aspect of the present invention, there is provided a USB charging cable, including: a first USB connector for connecting to a power outlet of a power adapter; a second USB connector for connecting to a mobile terminal to be charged or a wireless charging coil; determining Unit, located in the first USB connector or the second USB connector, and used to determine whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and a control unit, located in the first USB The connector or the second USB connector is used to control the connection of the wiring in the first USB connector or the second USB connector according to the judgment result of the judgment unit.

Preferably, when the judgment result indicates that the second USB connector is connected to a wireless charging coil, the control unit controls the first USB connector or the second USB connector for transmitting AC power. Connect the wiring.

Preferably, when the judgment result indicates that the second USB connector is connected to the mobile terminal to be charged, the control unit controls the first USB connector or the second USB connector for transmission The connection of the direct current wiring.

Preferably, the above-mentioned USB charging cable further includes a third USB connector for connecting a mobile terminal to be charged or a wireless charging coil; the determining unit is also used to determine whether the third USB connector is connected to a mobile terminal to be charged or a wireless charging coil. Charging coil; and the control unit is further configured to control the connection of the wiring in the first USB connector or the third USB connector according to the judgment result of the judgment unit.

Preferably, when the judgment result indicates that the second USB connector is connected to a mobile terminal to be charged and the third USB connector is connected to a wireless charging coil, the control unit controls the first The connection of the wiring for transmitting direct current in the USB connector or the second USB connector is also controlled and the connection of the wiring for transmitting alternating current in the first USB connector or the third USB connector is also controlled.

Preferably, the first USB connector, the second USB connector and the third USB connector all include one of the following: a USB Type A architecture connector and a USB Type C architecture connector.

Preferably, the USB charging cable further includes one or more fourth USB connectors for connecting one or more devices to be charged; and the control unit is also used to control the first USB connector or the one or more The connection of the wiring used to transmit direct current in the fourth USB connector.

Preferably, the fourth USB connector includes one of the following: a USB Mini architecture connector and a USB Micro B architecture connector.

According to another aspect of the present invention, there is provided a USB charging system, including: a power adapter and a USB charging cable, wherein the USB charging cable includes: a first USB connector for connecting to the power outlet of the power adapter The second USB connector is used to connect the mobile terminal to be charged or the wireless charging coil; the determining unit is located in the first USB connector or the second USB connector, and is used to determine whether the second USB connector is connected The mobile terminal to be charged is still a wireless charging coil; and a control unit, located in the first USB connector or the second USB connector, and configured to control the first USB connector or the second USB connector according to the judgment result of the judgment unit The wiring in the second USB connector is connected; the power adapter includes: a power input port for connecting to the mains; a power output port for supplying power to the first USB connector; a wired charging unit connected to the Between the power input port and the power output port, it is used to convert the mains power into direct current suitable for the mobile terminal to be charged; the wireless charging unit is connected between the power input port and the power output port for To convert the mains power into AC power suitable for the wireless charging coil; and a detection and judgment unit for detecting and judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil, and according to the detection The measurement and judgment result controls the connection of the wired charging unit or the wireless charging unit.

According to another aspect of the present invention, a desk lamp is provided. The table lamp includes: a lamp holder and a lamp holder, wherein the lamp holder includes: a table lamp power input interface for obtaining electric energy through a power adapter and a USB charging cable in the USB charging system, and for charging one or more wireless charging devices. One or more wireless charging coils powered by the mobile terminal and one or more wired charging connectors used to supply power to one or more wired charging mobile terminals; the USB charging cable includes: a first USB connector for connecting to the The power outlet of the power adapter; the second USB connector, used to connect the mobile terminal to be charged or the wireless charging coil; the judging unit, located in the first USB connector or the second USB connector, and used to judge the second Whether the USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and a control unit, located in the first USB connector or the second USB connector, for controlling the second USB connector according to the judgment result of the judgment unit A USB connector or the connection of the wiring in the second USB connector; the power adapter includes: a power input port, used to connect to the mains; a power output port, used to supply power to the first USB connector; wired charging A unit, connected between the power input port and the power output port, and used to convert the mains power into direct current suitable for the mobile terminal to be charged; a wireless charging unit, connected between the power input port and the power supply Between the output ports, it is used to convert the commercial power into AC power suitable for the wireless charging coil; and the detection and judgment unit is used to detect and judge whether the second USB connector is connected to a mobile terminal to be charged or a wireless Charging coil, and controlling the wired charging unit or the wireless charging unit to turn on according to the detection and judgment results.

The present invention controls the connection of the wiring in the first USB connector or the second USB connector of the USB charging cable through the judgment unit and the control unit in the USB charging cable, so that the wired and wireless duplex power adapter is connected to the mobile to be charged at the same time. In the case of the terminal and the wireless charging coil, DC and AC power can be transmitted at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are supplied with power at the same time.

Description of the drawings

The drawings described here are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a schematic diagram of a USB charging cable according to an embodiment of the present invention;

Figure 2 is a schematic diagram of a "one-to-one" USB charging cable according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a connection mode of a "one-to-one" USB charging cable according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an equivalent connection status of a "one-to-one" USB charging cable connection mode according to an embodiment of the present invention;

Figure 5 is a schematic diagram of a "one-to-two" USB charging cable according to an embodiment of the present invention;

Fig. 6 is a first schematic diagram of the connection mode of the "one-to-two" USB charging cable according to an embodiment of the present invention;

FIG. 7 is a second schematic diagram of the connection mode of the "one-to-two" USB charging cable according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a "one-to-three" USB charging cable according to an embodiment of the present invention;

FIG. 9 is a schematic diagram 1 of the connection mode of the "one-to-three" USB charging cable according to an embodiment of the present invention;

FIG. 10 is a second schematic diagram of the connection mode of the "one-to-three" USB charging cable according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 12 is a schematic diagram 1 of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 13 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 14 is a third schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 15 is a schematic diagram 1 of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 16 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 17 is a schematic diagram of a "one-to-four" USB charging cable according to an embodiment of the present invention;

18 is a schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 19 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 20 is a third schematic diagram of a connection mode of a "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 21 is a schematic diagram of a "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 22 is a schematic diagram 1 of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 23 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention;

FIG. 24 is a third schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention; and

Fig. 25 is a schematic diagram of a desk lamp using a USB charging system according to an embodiment of the present invention.

detailed description

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

The embodiment of the present invention provides a USB charging cable. Fig. 1 is a schematic diagram of a USB charging cable according to an embodiment of the present invention. As shown in Figure 1, the USB charging cable includes a first USB connector, which is used to connect to the power outlet of a power adapter; a second USB connector, which is used to connect to a mobile terminal to be charged or a wireless charging coil; and the judging unit is located in the first USB connector. The USB connector or the second USB connector is used to determine whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and a control unit, located in the first USB connector or the second USB connector, is used According to the judgment result of the judgment unit, the connection of the connection in the first USB connector or the second USB connector is controlled.

In the related art, the power output port of the wired and wireless duplex power adapter can simultaneously output direct current and alternating current. However, the current charging cable cannot transmit direct current and alternating current at the same time, which limits the scope of application of the wired and wireless duplex power adapter.

In the embodiment of the present invention, a USB charging cable is provided, through which the judging unit can automatically judge whether the connected mobile terminal or the wireless charging coil is connected, and further, the control unit in the USB charging cable can be based on the judgment result Control the connection of the wiring in the first USB connector or the second USB connector, that is, when the judgment result indicates that the second USB connector is connected to the wireless charging coil, the control unit controls the first USB connector or Connect the wires (such as A4, A5, A6, A7, and B9) in the second USB connector that are used to transmit AC power; if the judgment result indicates that the second USB connector is connected to the mobile terminal to be charged, the The control unit controls the connection of the wires (for example, B4, B5, B6, B7, and A9) for transmitting direct current in the first USB connector or the second USB connector. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

It should be noted that the first USB connector and the second USB connector of the USB charging cable in the embodiment of the present invention may be USB Type A architecture connectors or USB Type C architecture connectors. It can be seen that the USB charging cable in the embodiment of the present invention is connected via a conventional USB Type A connector or USB Type C connector, so the USB charging cable can be connected to almost all commercially available mobile terminals and wireless charging coils (including all Electromagnetic induction coils and resonant coils and any wireless charging coils developed in the future) and wired and wireless duplex power adapters are perfectly connected. At the same time, because the USB charging cable of the embodiment of the present invention only adds a judgment unit and a control unit on the basis of a conventional USB cable, the manufacturing cost of the USB charging cable will not increase significantly, and it can still meet people's daily needs.

According to an embodiment of the present invention, the above-mentioned USB charging cable further includes a third USB connector for connecting the mobile terminal to be charged or the wireless charging coil, and the determining unit is also used for determining that the third USB connector is connected to the mobile terminal to be charged. The terminal is also a wireless charging coil; and the control unit is also used to control the connection of the connection in the first USB connector or the third USB connector according to the judgment result of the judgment unit.

Specifically, when the judgment result indicates that the second USB connector is connected to the mobile terminal to be charged and the third USB connector is connected to the wireless charging coil, the control unit controls the first USB connector or the second USB connector. The wiring used to transmit direct current in the two USB connectors (such as A4, A5, A6, A7, and B9) is turned on and also controls the wiring used to transmit alternating current in the first USB connector or the third USB connector (such as B4, B5, B6, B7 and A9) are connected.

The embodiment of the present invention further realizes "one-to-many" wired and wireless duplex charging. Specifically, the USB charging cable of the embodiment of the present invention may have one USB input connector and two USB output connectors, and the two USB output connectors are respectively connected to the mobile terminal to be charged and the wireless charging coil. Furthermore, the USB charging cable can convert the power from the USB input connector into direct current and alternating current, and respectively supply the mobile terminal to be charged and the wireless charging coil through the two USB output connectors.

It should be noted that it is clear to those skilled in the art that the two USB output connectors included in the above-mentioned USB charging cable are only an example of "one-to-many" wired and wireless duplex charging. That is to say, in actual use, the above-mentioned USB charging cable may also include three or more USB output connectors, and these USB output connectors are respectively connected with one or more mobile terminals to be charged and one or more wireless charging coils. . Furthermore, the USB charging cable can convert the power from the USB input connector into direct current and alternating current, and respectively supply the one or more mobile terminals to be charged and the one or more wireless charging coils through the USB output connectors. It is clear to those skilled in the art that the output modes through the above-mentioned USB output connectors all belong to the "one-to-many" wired and wireless duplex charging mode in the embodiments of the present invention, and should be included in the protection scope of the embodiments of the present invention.

According to an embodiment of the present invention, the above-mentioned USB charging cable further includes one or more fourth USB connectors for connecting the device to be charged; and the control unit is also used to control the first USB connector or the one or more second USB connectors. Connect the wires (such as A9, A10, and A11) used to transmit direct current in the four USB connectors.

The embodiment of the present invention further realizes the "one-to-many" wired and wireless duplex charging. Specifically, the USB charging cable in the embodiment of the present invention can not only supply DC and AC power to the mobile terminal to be charged and the wireless charging coil, but also supply DC power to other devices to be charged (such as smart watches and smart bracelets). Those skilled in the art can understand that the fourth USB connector may be a conventional USB Mini architecture connector or a USB Micro B architecture connector.

According to an embodiment of the present invention, the USB charging cable can also be used as a USB extension cable to be connected with currently commercially available or in-use USB cables, thereby adding wired and wireless duplex charging to these USB cables. new function. In particular, these USB cables can be connected to the USB power supply interface assembled in the car or the USB power supply interface embedded in the wall of the room. Therefore, the embodiment of the present invention can provide these USB cables without changing the structure of the existing car and the room as much as possible. The power supply interface adds a new function of wired and wireless duplex charging.

In the following, the implementation process of the foregoing embodiment of the present invention will be described in detail according to the specific embodiment of the present invention.

Example 1: "One-to-one" USB charging cable

Fig. 2 is a schematic diagram of a "one-to-one" USB charging cable according to an embodiment of the present invention. As shown in Figure 2, the "one-to-one" USB charging cable includes two conventional USB Type C architecture connectors A, and a wire C is connected between them. Any one of the two connectors A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the other connector A can be used to connect to a mobile terminal to be charged or a wireless charging coil. Any one of the two joints A may include a judgment and control unit B. The judgment and control unit B can automatically judge whether the mobile terminal to be charged or the wireless charging coil is connected. Furthermore, the judgment and control unit B can automatically control the connection of the connection in the connector A according to the judgment result, that is, when judging The result indicates that when the connector A in the lower right corner is connected to a wireless charging coil, the judgment and the control unit B control the connection of the AC transmission wiring in the connector A; the judgment result indicates that the connector A in the lower right corner is connected to In the case of a mobile terminal to be charged, the judgment and control unit B controls the connection of the connection for the direct current transmission in the connector A. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

Fig. 3 is a schematic diagram of a “one-to-one” USB charging cable connection mode according to an embodiment of the present invention. Fig. 4 is a schematic diagram of an equivalent connection status of a "one-to-one" USB charging cable connection mode according to an embodiment of the present invention. As shown in Figure 3, the schematic diagram includes (1) a communication and interface setting circuit and (2) a judgment and control circuit. Among them, the communication and interface setting circuit is used to provide the communication function during the charging process, to confirm the protocol status between the power adapter and the mobile terminal to be charged or the wireless charging coil, and to detect the voltage and voltage during the charging process. Electric current, thereby providing safety protection for the mobile terminal to be charged or the wireless charging coil. In addition, the judgment and control circuit corresponds to the aforementioned judgment unit and control unit, and is used to control the wiring used to transmit alternating current (such as A4, A5, A6, A7, and B9) according to whether the mobile terminal to be charged or the wireless charging coil is connected. ), or control the connection of the wiring used to transmit direct current (such as B4, B5, B6, B7, and A9).

Example 2: "One-to-two" USB charging cable

The difference between the second embodiment and the first embodiment is that a USB Micro B architecture connector is added.

Fig. 5 is a schematic diagram of a "one-to-two" USB charging cable according to an embodiment of the present invention. As shown in Figure 5, the "one-to-two" USB charging cable includes two conventional USB Type C connectors A and one conventional USB Micro B connector D. Wherein, an electric wire C is connected between the upper left joint A and the lower right joint A, and an electric wire E is connected between the upper left joint A and the joint D. The upper left connector A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the lower right connector A can be used to connect a mobile terminal to be charged or a wireless charging coil.

The upper left joint A also includes a judgment and control unit B. The judgment and control unit B can automatically judge whether the lower right connector A is connected to a mobile terminal to be charged or a wireless charging coil, and further, the judgment and control unit B can automatically control the wiring in the lower right connector A according to the judgment result That is, when the judgment result indicates that the lower right connector A is connected to a wireless charging coil, the judgment and control unit B controls the connection of the connection for transmitting AC power in the lower right connector A; In the case that the judgment result indicates that the lower right connector A is connected to the mobile terminal to be charged, the judgment and control unit B controls the connection of the connection for the direct current transmission in the lower right connector A. In addition, the judgment and control unit B can automatically judge whether the connector D is connected to the device to be charged, and further, in the case where the judgment result indicates that the connector D is connected to the device to be charged, the judgment and control unit B controls the device to be charged in the connector D The connection of the direct current transmission wiring. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

Fig. 6 is a first schematic diagram of the connection mode of the "one-to-two" USB charging cable according to an embodiment of the present invention. Fig. 7 is a second schematic diagram of the connection mode of the "one-to-two" USB charging cable according to an embodiment of the present invention. Among them, FIG. 6 shows the connection mode of the USB Type C architecture connector A. In addition, FIG. 7 shows the connection method of the USB Micro B architecture connector D, in which the fourth pin of the USB Micro B architecture connector D is connected to the open.

Embodiment three: "one-to-three" USB charging cable

The difference between the third embodiment and the first embodiment is that two USB Micro B architecture connectors are added.

Fig. 8 is a schematic diagram of a "one-to-three" USB charging cable according to an embodiment of the present invention. As shown in Figure 8, the "one-to-three" USB charging cable includes two conventional USB Type C connectors A and two conventional USB Micro B connectors D. Wherein, an electric wire C is connected between the upper left joint A and the lower right joint A, and an electric wire E is connected between the upper left joint A and the joint D. The upper left connector A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the lower right connector A can be used to connect a mobile terminal to be charged or a wireless charging coil.

The upper left joint A also includes a judgment and control unit B. The judgment and control unit B can automatically judge whether the lower right connector A is connected to a mobile terminal to be charged or a wireless charging coil, and further, the judgment and control unit B can automatically control the wiring in the lower right connector A according to the judgment result That is, when the judgment result indicates that the lower right connector A is connected to a wireless charging coil, the judgment and control unit B controls the connection of the connection for transmitting AC power in the lower right connector A; In the case that the judgment result indicates that the lower right connector A is connected to the mobile terminal to be charged, the judgment and control unit B controls the connection of the connection for the direct current transmission in the lower right connector A. In addition, the judgment and control unit B can automatically judge whether each of the two connectors D is connected to the device to be charged, and further, if the judgment result indicates that the connector D is connected to the device to be charged, the judgment and control unit B controls the connector D The connection of the wiring used to transmit direct current in. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

Fig. 9 is a first schematic diagram of the connection mode of the "one-to-three" USB charging cable according to an embodiment of the present invention. Fig. 10 is a second schematic diagram of the connection mode of the "one-to-three" USB charging cable according to an embodiment of the present invention. Among them, FIG. 9 shows the connection mode of the USB Type C architecture connector A. In addition, FIG. 10 shows the connection method of the USB Micro B architecture connector D, in which the fourth pin of the USB Micro B architecture connector D is connected to the open.

Embodiment four: "one-to-four" USB charging cable

The difference between the fourth embodiment and the first embodiment is that two USB Micro B architecture connectors and one USB Mini architecture connector are added.

Fig. 11 is a schematic diagram of a "one-to-four" USB charging cable according to an embodiment of the present invention. As shown in Figure 11, the "one-to-four" USB charging cable includes two conventional USB Type C architecture connectors A, two conventional USB Micro B architecture connectors D, and one conventional USB Mini architecture connector F. Wherein, an electric wire C is connected between the upper left joint A and the lower right joint A, and an electric wire E is connected between the upper left joint A and the joint D and the joint F. The upper left connector A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the lower right connector A can be used to connect a mobile terminal to be charged or a wireless charging coil.

The upper left joint A also includes a judgment and control unit B. The judgment and control unit B can automatically judge whether the lower right connector A is connected to a mobile terminal to be charged or a wireless charging coil, and further, the judgment and control unit B can automatically control the wiring in the lower right connector A according to the judgment result That is, when the judgment result indicates that the lower right connector A is connected to a wireless charging coil, the judgment and control unit B controls the connection of the connection for transmitting AC power in the lower right connector A; In the case where the judgment result indicates that the lower right connector A is connected to the mobile terminal to be charged, the judgment and control unit B controls the connection of the connection for the direct current transmission in the lower right connector A. In addition, the judgment and control unit B can automatically judge whether each of the two connectors D and one connector F is connected to the device to be charged, and further, when the judgment result indicates that the connector D or the connector F is connected to the device to be charged, the judgment And the control unit B controls the connection of the connection for the direct current transmission in the connector D or the connector F. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

Fig. 12 is a first schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. FIG. 13 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Fig. 14 is a third schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Among them, FIG. 12 shows the connection mode of the USB Type C architecture connector A. In addition, FIG. 13 shows the connection method of the USB Micro B architecture connector D, in which the fourth pin of the USB Micro B architecture connector D is connected to the open. And among them, FIG. 14 shows the wiring connection mode of the USB Mini frame connector F, in which the fourth pin of the USB Mini frame connector F is freely connected.

Embodiment 5: "One to Four" USB Charging Cable

The difference between the fifth embodiment and the fourth embodiment is that two USB Micro B architecture connectors and one USB TYPE C architecture connector are added.

It can be seen that the "one-to-four" USB charging cable includes three conventional USB Type C architecture connectors A and two conventional USB Micro B architecture connectors D. Wherein, an electric wire C is connected between the upper left joint A and the two lower right joints A, and an electric wire E is connected between the upper left joint A and the joint D. The upper left connector A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the lower right connector A can be used to connect a mobile terminal to be charged or a wireless charging coil.

The upper left joint A also includes a judgment and control unit B. The judgment and control unit B can automatically judge whether each of the two lower right connectors A is connected to a mobile terminal to be charged or a wireless charging coil, and further, the judgment and control unit B can automatically control the lower right connector according to the judgment result The connection of the wiring in A, that is, when the judgment result indicates that the lower right connector A is connected to a wireless charging coil, the judgment and control unit B controls the wiring for transmitting alternating current in the lower right connector A When the judgment result indicates that the lower right connector A is connected to the mobile terminal to be charged, the judgment and control unit B controls the connection of the connection for transmitting direct current in the lower right connector A. In addition, the judgment and control unit B can automatically judge whether each of the two connectors D is connected to the device to be charged, and further, if the judgment result indicates that the connector D is connected to the device to be charged, the judgment and control unit B controls the connector D The connection of the wiring used to transmit direct current in. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

Fig. 15 is a first schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Fig. 16 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Among them, Figure 15 shows the connection mode of the USB Type C architecture connector A. In addition, FIG. 16 shows the connection method of the USB Micro B architecture connector D, in which the fourth pin of the USB Micro B architecture connector D is connected to the open.

Example 6: "One-to-four" USB charging cable

The difference between the sixth embodiment and the fourth embodiment is that two USB Micro B architecture connectors and one USB TYPE C architecture connector are added.

Fig. 17 is a schematic diagram of a "one-to-four" USB charging cable according to an embodiment of the present invention. As shown in Figure 17, it can be seen that the "one-to-four" USB charging cable includes three conventional USB Type C architecture connectors A and two conventional USB Micro B architecture connectors D. Wherein, an electric wire C is connected between the upper left joint A and the two lower right joints A, and an electric wire E is connected between the upper left joint A and the joint D. The upper left connector A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the lower right connector A can be used to connect a mobile terminal to be charged or a wireless charging coil.

The upper left joint A also includes a judgment and control unit B. The judgment and control unit B can automatically judge whether each of the two lower right connectors A is connected to a mobile terminal to be charged or a wireless charging coil, and further, the judgment and control unit B can automatically control the lower right connector according to the judgment result The connection of the wiring in A, that is, when the judgment result indicates that the lower right connector A is connected to a wireless charging coil, the judgment and control unit B controls the wiring used to transmit alternating current in the lower right connector A When the judgment result indicates that the lower right connector A is connected to the mobile terminal to be charged, the judgment and control unit B controls the connection of the connection for transmitting direct current in the lower right connector A. In addition, the judgment and control unit B can automatically judge whether each of the two connectors D is connected to the device to be charged, and further, when the judgment result indicates that the connector D is connected to the device to be charged, the judgment and control unit B controls the connector D The connection of the wiring used to transmit direct current in. Therefore, when the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless The charging coil is powered.

Fig. 18 is a first schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Fig. 19 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. FIG. 20 is a third schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Among them, Figure 18 and Figure 19 show the connection mode of the USB Type C architecture connector A. In addition, FIG. 20 shows the connection method of the USB Micro B architecture connector D, in which the fourth pin of the USB Micro B architecture connector D is connected to the open.

Example 7: "One-to-four" USB charging cable

The difference between the seventh embodiment and the fourth embodiment is that two USB Micro B architecture connectors and one USB TYPE C architecture connector are added.

Fig. 21 is a schematic diagram of a "one-to-four" USB charging cable according to an embodiment of the present invention. As shown in Figure 21, it can be seen that the "one-to-four" USB charging cable includes three conventional USB Type C architecture connectors A and two conventional USB Micro B architecture connectors D. Among them, an electric wire C is connected between the upper left connector A and the two lower right connectors A, and an electric wire E is connected between the upper left connector A and the connector D. The upper left connector A can be used to connect to the power output port of a wired and wireless duplex power adapter, and the lower right connector A can be used to connect a mobile terminal to be charged or a wireless charging coil.

Fig. 22 is a first schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. FIG. 23 is a second schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. FIG. 24 is a third schematic diagram of the connection mode of the "one-to-four" USB charging cable according to an embodiment of the present invention. Among them, Figure 22 and Figure 23 show the connection mode of the USB Type C architecture connector A. In addition, FIG. 24 shows the connection method of the USB Micro B architecture connector D, in which the fourth pin of the USB Micro B architecture connector D is connected to the open.

An embodiment of the present invention also provides a USB charging system, including: a power adapter and a USB charging cable, where the USB charging cable includes: a first USB connector for connecting to the power outlet of the power adapter; and a second USB connector , Used to connect the mobile terminal to be charged or the wireless charging coil; the determining unit, located in the first USB connector or the second USB connector, used to determine whether the second USB connector is connected to the mobile terminal to be charged or the wireless charging coil And a control unit, located in the first USB connector or the second USB connector, for controlling the connection of the wiring in the first USB connector or the second USB connector according to the judgment result of the judgment unit; and wherein The power adapter includes: a power input port, used to connect to the mains; a power output port, used to supply power to the first USB connector; a wired charging unit, connected between the power input port and the power output port, used to connect The mains power is converted into DC power suitable for the mobile terminal to be charged; the wireless charging unit is connected between the power input port and the power output port for converting mains power into AC power suitable for the wireless charging coil; and detection and The judging unit is used for detecting and judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil, and controlling the wired charging unit or the wireless charging unit to be turned on according to the detection and judgment results.

According to an embodiment of the present invention, the USB charging cable further includes a third USB connector for connecting the mobile terminal to be charged or the wireless charging coil; the determining unit is also used to determine that the third USB connector is connected to the mobile terminal to be charged It is also a wireless charging coil; and the control unit is also used for controlling the first USB connector when the judgment result indicates that the second USB connector is connected to the mobile terminal to be charged and the third USB connector is connected to the wireless charging coil. The connection of the wiring for transmitting direct current in the USB connector or the second USB connector is also controlled and the connection of the wiring for transmitting alternating current in the first USB connector or the third USB connector is also controlled.

Fig. 25 is a schematic diagram of a desk lamp using a USB charging system according to an embodiment of the present invention. As shown in Figure 25, the desk lamp includes a lamp holder and a lamp holder. The desk lamp can provide multiple wireless charging coils and multiple wired charging connectors at the same time, so as to simultaneously charge wireless charging mobile terminals such as mobile phones and watches, and simultaneously charge wired charging mobile devices such as earphones and shavers, and At the same time, it supplies power to the table lamp lighting.

Specifically, the lamp holder includes: a table lamp power input interface for obtaining electric energy through the power adapter and USB charging cable in the USB charging system, and one or more wireless charging terminals for supplying power to one or more wireless charging mobile terminals. A charging coil and one or more wired charging connectors for supplying power to one or more wired charging mobile terminals.

In addition, the USB charging cable includes: a first USB connector for connecting to the power outlet of the power adapter; a second USB connector for connecting to a mobile terminal to be charged or a wireless charging coil; and a judging unit located at the first USB connector Or the second USB connector is used to determine whether the second USB connector is connected to the mobile terminal to be charged or the wireless charging coil; and the control unit is located in the first USB connector or the second USB connector, and is used to determine whether the second USB connector is connected to the mobile terminal to be charged or the wireless charging coil; The judgment result of the judgment unit controls the connection of the wiring in the first USB connector or the second USB connector.

And, the power adapter includes: a power input port, used to connect to the mains; a power output port, used to supply power to the first USB connector; a wired charging unit, connected between the power input port and the power output port, For converting the mains power into DC power suitable for the mobile terminal to be charged; a wireless charging unit, connected between the power input port and the power output port, for converting the mains power into AC power suitable for the wireless charging coil; and The measuring and judging unit is used for detecting and judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil, and controlling the wired charging unit or the wireless charging unit according to the detection and judgment results.

Those skilled in the art can understand that the above table lamps for mobile phones, watches and earphones are merely examples. In practical applications, household appliances such as desk lamps, speakers, set-top boxes, etc., including more wireless charging coils and wired charging connectors, as long as the USB charging system in the embodiment of the present invention is used, should be included in the protection scope of the present invention.

In summary, the embodiments of the present invention provide a USB charging cable and a USB charging system. The USB charging cable includes a first USB connector, which is used to connect to the power outlet of a power adapter; a second USB connector, which is used to connect to a mobile terminal to be charged or a wireless charging coil; and a judging unit is located at the first USB connector or the second USB connector. In the USB connector, it is used to determine whether the second USB connector is connected to the mobile terminal to be charged or the wireless charging coil; and the control unit is located in the first USB connector or the second USB connector, and is used to determine whether the second USB connector is connected to the mobile terminal or the wireless charging coil. As a result of the judgment, the connection of the wiring in the first USB connector or the second USB connector is controlled. Therefore, in the case that the wired and wireless duplex power adapter is connected to the mobile terminal to be charged and the wireless charging coil at the same time, the USB charging cable in the embodiment of the present invention can transmit DC and AC power at the same time, thereby ensuring that the mobile terminal to be charged and the wireless charging coil are simultaneously supplied to the mobile terminal to be charged. The charging coil is powered.

Obviously, those skilled in the art should understand that the above-mentioned units or steps of the present invention can be implemented by a general computing device, and they can be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Above, alternatively, they can be implemented with program codes executable by a computing device, so that they can be stored in a storage device for execution by the computing device, or they can be fabricated into individual integrated circuit units, or Multiple units or steps are fabricated into a single integrated circuit unit for realization. In this way, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

A USB charging cable is characterized in that it comprises:

The first USB connector is used to connect to the power outlet of the power adapter;

The second USB connector is used to connect the mobile terminal to be charged or the wireless charging coil;

A judging unit, located in the first USB connector or the second USB connector, for judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and

The control unit is located in the first USB connector or the second USB connector, and is used to control the connection of the wiring in the first USB connector or the second USB connector according to the judgment result of the judgment unit .
The USB charging cable according to claim 1, wherein when the judgment result indicates that the second USB connector is connected to a wireless charging coil, the control unit controls the first USB connector or The connection of the wiring used to transmit alternating current in the second USB connector.
The USB charging cable according to claim 1, wherein the control unit controls the first USB connector when the judgment result indicates that the second USB connector is connected to the mobile terminal to be charged. Or the connection of the wiring used to transmit direct current in the second USB connector.
The USB charging cable according to claim 1, further comprising a third USB connector for connecting a mobile terminal to be charged or a wireless charging coil;

The determining unit is also used to determine whether the third USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and

The control unit is further configured to control the connection of the wiring in the first USB connector or the third USB connector according to the judgment result of the judgment unit.
The USB charging cable according to claim 4, wherein the judgment result indicates that the second USB connector is connected to the mobile terminal to be charged and the third USB connector is connected to the wireless charging coil. In this case, the control unit controls the connection of the wiring for transmitting direct current in the first USB connector or the second USB connector and also controls the connection of the first USB connector or the third USB connector. The connection of the wiring that transmits alternating current.
The USB charging cable according to any one of claims 1 to 5, wherein the first USB connector, the second USB connector, and the third USB connector all include one of the following: USB Type A Architecture connector, USB Type C architecture connector.
The USB charging cable according to any one of claims 1 to 5, further comprising one or more fourth USB connectors for connecting one or more devices to be charged; and the control unit also uses For controlling the connection of the wiring for transmitting direct current in the first USB connector or the one or more fourth USB connectors.
The USB charging cable according to claim 7, wherein the fourth USB connector includes one of the following: a USB Mini architecture connector and a USB Micro B architecture connector.
A USB charging system is characterized by comprising: a power adapter and a USB charging cable, wherein,

The USB charging cable includes:

The first USB connector is used to connect to the power output port of the power adapter;

The second USB connector is used to connect the mobile terminal to be charged or the wireless charging coil;

A judging unit, located in the first USB connector or the second USB connector, for judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and

The control unit is located in the first USB connector or the second USB connector, and is configured to control the connection of the wiring in the first USB connector or the second USB connector according to the judgment result of the judgment unit ；

The power adapter includes:

Power input port, used to connect to the mains;

A power output port for supplying power to the first USB connector;

A wired charging unit, connected between the power input port and the power output port, and used to convert the mains power into direct current suitable for the mobile terminal to be charged;

The wireless charging unit is connected between the power input port and the power output port, and is used to convert mains power into alternating current suitable for the wireless charging coil; and

A detection and judgment unit for detecting and judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil, and controlling the wired charging unit or the wireless charging unit according to the detection and judgment results The connection.
A desk lamp using the USB charging system according to claim 9, characterized in that it comprises: a lamp holder and a lamp holder, wherein:

The lamp holder includes: a table lamp power input interface for obtaining electric energy via a power adapter and a USB charging cable in the USB charging system, and one or more wireless charging coils for supplying power to one or more wireless charging mobile terminals And one or more wired charging connectors for supplying power to one or more wired charging mobile terminals;

The USB charging cable includes:

The first USB connector is used to connect to the power output port of the power adapter;

The second USB connector is used to connect the mobile terminal to be charged or the wireless charging coil;

A judging unit, located in the first USB connector or the second USB connector, for judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil; and

The control unit is located in the first USB connector or the second USB connector, and is configured to control the connection of the wiring in the first USB connector or the second USB connector according to the judgment result of the judgment unit ；

The power adapter includes:

Power input port, used to connect to the mains;

A power output port for supplying power to the first USB connector;

A wired charging unit, connected between the power input port and the power output port, and used to convert the mains power into direct current suitable for the mobile terminal to be charged;

The wireless charging unit is connected between the power input port and the power output port, and is used to convert mains power into alternating current suitable for the wireless charging coil; and

A detection and judgment unit for detecting and judging whether the second USB connector is connected to a mobile terminal to be charged or a wireless charging coil, and controlling the wired charging unit or the wireless charging unit according to the detection and judgment results The connection.