Data line and charging equipment

Abstract

The utility model relates to the technical field of charging, and relates to a data line and charging equipment. The data line comprises a wire rod, a USB-A interface connected with one end of the wire rod, a USB-C interface connected with the other end of the wire rod, a first pull-up circuit unit, a switch unit and a second pull-up circuit unit, and the USB-A interface is used for being connected with power supply equipment and is provided with a first power supply pin; the USB-C interface is used for connecting electronic equipment and is provided with a second power supply pin, a third power supply pin and a communication pin, and the second power supply pin is electrically connected with the first power supply pin through a wire rod to form a power supply path; the first end of the first pull-up circuit unit is electrically connected to the power path, and the second end is electrically connected with the communication pin; the second pull-up circuit unit is connected in series with the switch unit and then is connected between the power supply path and the third power supply pin; and the second pull-up circuit unit is switched and connected between the power supply path and the third power supply pin through the switch unit. The method can be compatible with a QC fast charging protocol and an FCP / SCP fast charging protocol, and the charging experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging, in particular to a data cable and a charging device. Background Art

[0002] Data cables are widely used in people's lives and work. They can be connected to chargers to charge electronic devices such as mobile phones and computers. With the rich variety of electronic devices and the pursuit of the charging speed of electronic devices by people, various charging protocols have emerged, such as: QC (Quick Charge) fast charging protocol, FCP (Fast Charging Protocol) fast charging protocol, and SCP (Super Charge Protocol) fast charging protocol, etc.

[0003] In the related art, there are mainly two types of data cables for converting USB-A interfaces to USB-C interfaces. One is compatible with the QC fast charging protocol, and the other is compatible with the FCP / SCP fast charging protocol, which can respectively meet the charging requirements of electronic devices that support the QC fast charging protocol and the FCP / SCP fast charging protocol. However, the existing same data cable cannot be compatible with the QC fast charging protocol and the FCP / SCP fast charging protocol, resulting in limited charging use and poor charging experience. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a data cable and a charging device to solve the problems of limited charging use and poor charging experience of the data cable in the prior art.

[0005] The utility model discloses a data cable, which includes a wire, a USB-A interface connected to one end of the wire, and a USB-C interface connected to the other end of the wire. The data cable further includes a first pull-up circuit unit, a switch unit, and a second pull-up circuit unit, wherein,

[0006] The USB-A interface is used to connect to a power supply device, and the USB-A interface is provided with a first power pin;

[0007] The USB-C interface is used to connect to an electronic device, and the USB-C interface is provided with a second power pin, a third power pin, and a communication pin. The second power pin is electrically connected to the first power pin through the wire to form a power path;

[0008] The first end of the first pull-up circuit unit is electrically connected to the power path, and the second end is electrically connected to the communication pin;

[0009] The second pull-up circuit unit is connected in series with the switch unit and then connected between the power supply path and the third power supply pin. The second pull-up circuit unit is switched to be connected between the power supply path and the third power supply pin through the switch unit.

[0010] Optionally, the first pull-up circuit unit includes a first pull-up resistor. The first end of the first pull-up resistor is electrically connected to the power supply path, and the second end is electrically connected to the communication pin.

[0011] Optionally, the resistance value range r1 of the first pull-up resistor is (56 - 56 * 5%) kΩ ≤ r1 ≤ (56 + 56 * 5%) kΩ.

[0012] Optionally, the second pull-up circuit unit includes a second pull-up resistor. The first end of the second pull-up resistor is electrically connected to the power supply path, and the second end is electrically connected to the third power supply pin through the switch unit.

[0013] Optionally, the resistance value range r2 of the second pull-up resistor is (56 - 56 * 5%) kΩ ≤ r2 ≤ (56 + 56 * 5%) kΩ.

[0014] Optionally, the switch unit includes a switching switch. The two ends of the switching switch are respectively electrically connected to the communication pin and the second end of the second pull-up resistor.

[0015] Optionally, the first pull-up circuit unit includes a plurality of third pull-up resistors. The plurality of third pull-up resistors are connected in parallel, and the first parallel connection node is electrically connected to the power supply path, and the second parallel connection node is electrically connected to the communication pin.

[0016] Optionally, the data cable further includes a first housing and a second housing. The USB-A interface is provided on the first housing, the USB-C interface is provided on the second housing, the wire harness includes a plurality of electrical connection lines, and each pin of the USB-A interface is respectively electrically connected to the corresponding pin of the USB-C interface through one of the electrical connection lines.

[0017] Optionally, the USB-C interface includes a plug-in terminal and a circuit board electrically connected to the plug-in terminal. The second power supply pin, the third power supply pin, the communication pin, the second pull-up circuit unit, and the switch unit are all provided on the circuit board.

[0018] The present utility model also discloses a charging device, including a charger and the data cable as described above. The output end of the charger is electrically connected to the USB-A interface of the data cable.

[0019] Compared with the prior art, the beneficial effects of the data cable and the charging device provided by the embodiments of the present utility model are as follows: By providing a USB-A interface, a USB-C interface, a first pull-up circuit unit, a switch unit, and a second pull-up circuit unit, the USB-A interface is provided with a first power pin, and the USB-C interface is provided with a second power pin, a third power pin, and a communication pin. The second power pin is electrically connected to the first power pin through a wire to form a power path. The first end of the first pull-up circuit unit is electrically connected to the power path, and the second end is electrically connected to the communication pin. The data cable can support the QC fast charging protocol. By providing the second pull-up circuit unit, the second pull-up circuit unit is connected in series with the switch unit and then connected between the power path and the third power pin. The user can connect the second pull-up circuit unit between the power path and the third power pin through the switch unit according to the FCP / SCP fast charging requirement, so that the data cable can support the FCP / SCP fast charging protocol. Therefore, this application can be compatible with the QC fast charging protocol and the FCP / SCP fast charging protocol, meet different charging requirements, and improve the user's charging experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solutions of the present utility model will be further described in detail below in conjunction with the drawings and embodiments. In the drawings:

[0021] Figure 1 is a schematic electrical connection diagram of the connection between the USB-A interface and the USB-C interface of the data cable provided by the embodiment of the present utility model;

[0022] Figure 2 is a specific schematic electrical connection diagram of the connection between the USB-A interface and the USB-C interface of the data cable provided by the embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the data cable provided by the embodiment of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the USB-C interface provided by the embodiment of the present utility model;

[0025] Figure 5 is a schematic structural diagram of the USB-C interface provided on the second housing in the embodiment of the present utility model.

[0026] The reference numerals in the drawings are as follows:

[0027] 10. USB-A interface; 11. First power pin; 20. USB-C interface; 21. Second power pin; 22. Third power pin; 23. Communication pin; 24. Plug-in terminal; 25. Circuit board; 30. First pull-up circuit unit; R1. First pull-up resistor; 40. Switch unit; K1. Change-over switch; 50. Second pull-up circuit unit; R2. Second pull-up resistor; 60. Wire; 70. First housing; 80. Second housing. Detailed implementation manners

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. Now, in conjunction with the drawings, the preferred embodiments of the present utility model will be described in detail.

[0029] An embodiment of the present utility model provides a data cable, as Figure 1 and Figure 3 shown, the data cable includes a USB-A interface 10, a USB-C interface 20, a first pull-up circuit unit 30, a switch unit 40, a second pull-up circuit unit 50, and a wire 60.

[0030] One end of the wire 60 is connected to the USB-A interface 10, and the other end is connected to the USB-C interface 20.

[0031] The USB-A interface 10 is used to connect to a power supply device, such as a mobile power supply, to obtain electric energy from the power supply device. The USB-A interface 10 is provided with a first power pin 11.

[0032] The USB-C interface 20 is used to connect to an electronic device, such as a mobile phone, a smart bracelet, etc., to transmit electric energy to the electronic device and charge the electronic device. The USB-C interface 20 is provided with a second power pin 21, a third power pin 22, and a communication pin 23. The second power pin 21 is electrically connected to the first power pin 11 through the wire 60 to form a power path.

[0033] The first pull-up circuit unit 30, its first end is electrically connected to the power path, and the second end is electrically connected to the communication pin 23.

[0034] The second pull-up circuit unit 50 is connected in series with the switch unit 40 and connected between the power path and the third power pin 22. The second pull-up circuit unit 50 is switched to be connected between the power path and the third power pin 22 through the switch unit 40.

[0035] In this application, by providing a USB-A interface 10, a USB-C interface 20, a first pull-up circuit unit 30, a switch unit 40, and a second pull-up circuit unit 50, the USB-A interface 10 is provided with a first power pin 11, and the USB-C interface 20 is provided with a second power pin 21, a third power pin 22, and a communication pin 23. The second power pin 21 is electrically connected to the first power pin 11 through a wire 60 to form a power path. The first end of the first pull-up circuit unit 30 is electrically connected to the power path, and the second end is electrically connected to the communication pin 23. The data line can support the QC fast charging protocol. By providing the second pull-up circuit unit 50, the second pull-up circuit unit 50 is connected in series with the switch unit 40 and then connected between the power path and the third power pin 22. Users can connect the second pull-up circuit unit 50 between the power path and the third power pin 22 through the switch unit 40 according to the FCP / SCP fast charging requirements, so that the data line can support the FCP / SCP fast charging protocol. Therefore, this application can be compatible with the QC fast charging protocol and the FCP / SCP fast charging protocol, meet different charging requirements, and improve the user's charging experience.

[0036] In a specific application scenario, the first power pin 11 is the VBUS pin corresponding to the USB-A interface 10. The first power pin 11 of this application is not limited to the specific pin number naming. The second power pin 21, the third power pin 22, and the communication pin 23 of the USB-C interface 20 are the VBUS pin, the Vconn pin, and the CC pin corresponding to the USB-C interface 20 respectively. The second power pin 21, the third power pin 22, and the communication pin 23 of this application are not limited to the specific pin number naming.

[0037] Refer to Figure 1 and Figure 2 , in this embodiment, the first pull-up circuit unit 30 includes a first pull-up resistor R1. The first end of the first pull-up resistor R1 is electrically connected to the power path, and the second end is electrically connected to the communication pin 23.

[0038] By providing the first pull-up resistor R1, it helps the electronic device connected to the data line and the power supply device to communicate, identify the device type, and negotiate an appropriate charging protocol and rate, so that the data line can meet the protocol determination requirements of the QC fast charging protocol, and the electronic device can achieve fast charging in the QC fast charging mode.

[0039] The resistance value range r1 of the first pull-up resistor R1 is (56 - 56 * 5%) kΩ ≤ r1 ≤ (56 + 56 * 5%) kΩ. The resistance value r1 of the first pull-up resistor R1 can be 53.2 kΩ, 54.0 kΩ, 55.0 kΩ, 56.0 kΩ, 57.0 kΩ, 58.0 kΩ, 58.2 kΩ, etc. In this embodiment, the resistance value r1 of the first pull-up resistor R1 is preferably 56.0 kΩ.

[0040] In other embodiments, the first pull-up circuit unit 30 may also include a plurality of third pull-up resistors, which are connected in parallel, and the first parallel connection node is electrically connected to the power supply path, and the second parallel connection node is electrically connected to the communication pin 23. The plurality of third pull-up resistors connected in parallel can also enable the data line to meet the protocol determination requirements of the QC fast charging protocol, so that the data line supports the QC fast charging protocol. In a specific application scenario, the total resistance value of the plurality of third resistors connected in parallel is the same as the resistance value of the first pull-up resistor R1. Alternatively, the first pull-up circuit unit 30 may include a plurality of fourth pull-up resistors, and the plurality of fourth pull-up resistors are connected in series between the power supply path and the communication pin 23, which can also enable the data line to meet the protocol determination requirements of the QC fast charging protocol, so that the data line supports the QC fast charging protocol. In a specific application scenario, the total resistance value of the plurality of fourth pull-up resistors connected in series is equivalent to the resistance value of the first pull-up resistor R1.

[0041] Reference Figure 1 and Figure 2 In this embodiment, the second pull-up circuit unit 50 includes a second pull-up resistor R2. The first end of the second pull-up resistor R2 is electrically connected to the power supply path, and the second end is electrically connected to the third power supply pin 22 through the switch unit 40.

[0042] The user can operate the switch unit 40 to connect the second pull-up resistor R2 between the power supply path and the third power supply pin 22 of the USB-C interface 20, so that the data line can meet the protocol determination requirements of the FCP / SCP fast charging protocol, and the data line supports the FCP / SCP fast charging protocol.

[0043] The resistance value r2 of the second pull-up resistor R2 is (56 - 56 * 5%) kΩ ≤ r2 ≤ (56 + 56 * 5%) kΩ. The resistance value r2 of the second pull-up resistor R2 can be 53.2 kΩ, 54.0 kΩ, 55.0 kΩ, 56.0 kΩ, 57.0 kΩ, 58.0 kΩ, 58.2 kΩ, etc. In this embodiment, the resistance value r2 of the second pull-up resistor R2 is preferably 56.0 kΩ.

[0044] In other embodiments, the second pull-up circuit unit 50 may also include a plurality of fifth pull-up resistors. The plurality of fifth pull-up resistors are connected in parallel, and the first parallel connection node is electrically connected to the power supply path, and the second parallel connection node is electrically connected to the third power supply pin 22 through the switch unit 40. The plurality of fifth pull-up resistors connected in parallel can also be connected between the power supply path and the third power supply pin 22 of the USB-C interface 20 through the switch unit 40, so that the data line can meet the protocol determination requirements of the FCP / SCP fast charging protocol. In a specific application scenario, the total resistance value of the plurality of fifth pull-up resistors connected in parallel is the same as the resistance value of the above-mentioned second pull-up resistor R2. Alternatively, the second pull-up circuit unit 50 may also include a plurality of sixth pull-up resistors. The plurality of sixth pull-up resistors are connected in series, and the first end is electrically connected to the first power supply path, and the second end is electrically connected to the third power supply pin 22 through the switch unit 40. The plurality of sixth pull-up resistors connected in series are connected between the power supply path and the third power supply pin 22 of the USB-C interface 20 through the switch unit 40, so that the data line can meet the protocol determination requirements of the FCP / SCP fast charging protocol. In a specific application scenario, the total resistance value of the plurality of sixth pull-up resistors connected in series is the same as the resistance value of the above-mentioned second pull-up resistor R2.

[0045] Referring to Figure 1 and Figure 2 , in this embodiment, the switch unit 40 includes a changeover switch K1. Two ends of the changeover switch K1 are respectively electrically connected to the communication pin 23 and the second end of the second pull-up resistor R2. Specifically, the moving end of the changeover switch K1 may be electrically connected to the communication pin 23, and the fixed end may be electrically connected to the second end of the second pull-up resistor R2, or the fixed end of the changeover switch K1 may be electrically connected to the communication pin 23, and the moving end may be electrically connected to the second end of the second pull-up resistor R2.

[0046] By setting the changeover switch K1, the user can selectively connect the second pull-up resistor R2 between the power supply path and the third power supply pin 22 of the USB-C interface 20, so that the data line can meet the protocol determination requirements of the FCP / SCP fast charging protocol. When it is necessary to use the data line for QC fast charging, the changeover switch K1 can be disconnected, and the second pull-up resistor R2 is not connected between the power supply path and the third power supply pin 22 of the USB-C interface 20, and the path between the power supply path and the third power supply pin 22 is cut off, so that the data line meets the protocol determination requirements of the QC fast charging protocol.

[0047] The changeover switch K1 may specifically be a push-button switch, a touch switch, a rotary switch, etc., as long as it can realize connecting or disconnecting the path between the second pull-up resistor R2 and the third power supply pin 22.

[0048] Referring to Figures 1 to 3, in this embodiment, the data line further includes a first housing 70 and a second housing 80. The wire 60 includes a plurality of electrical connection lines. The USB-A interface 10 is disposed on the first housing 70, and the USB-C interface 20 is disposed on the second housing 80. Each pin of the USB-A interface 10 is electrically connected to the corresponding pin of the USB-C interface 20 through an electrical connection line one by one.

[0049] By providing the first housing 70 and the second housing 80 as the carriers of the USB-A interface 10 and the USB-C interface 20 respectively, the USB-A interface 10 and the USB-C interface 20 can be protected to a certain extent. And by providing the wire 60, a certain distance is allowed between the USB-A interface 10 and the USB-C interface 20, and thus a certain distance is allowed between the connected power supply device and the electronic device, which is convenient for users to use.

[0050] In a specific application scenario, the USB-A interface 10 further includes a D- pin, a D+ pin, a GND pin, and a SHELL pin. The USB-C interface 20 further includes an A6 pin, an A7 pin, an A1 pin, an A12 pin, a B1 pin, a B12 pin, and a SHELL pin. The A6 pin is connected to the D+ pin through a corresponding electrical connection line, the A7 pin is connected to the D- pin through a corresponding electrical connection line, the A1 pin, the A12 pin, the B1 pin, and the B12 pin are connected to the GND pin through the same corresponding electrical connection line, and the SHELL pin of the USB-A interface 10 is connected to the SHELL pin of the USB-C interface 20 through a corresponding electrical connection line.

[0051] Reference Figure 1 and Figure 5 , in this embodiment, the USB-C interface 20 includes a plug-in terminal 24 and a circuit board 25 electrically connected to the plug-in terminal 24. The second power pin 21, the third power pin 22, the communication pin 23, the second pull-up circuit unit 50, and the switch unit 40 are all disposed on the circuit board 25.

[0052] The plug-in terminal 24 can be plugged into the charging interface that matches the electronic device. By disposing the second power pin 21, the third power pin 22, the communication pin 23, the second pull-up circuit unit 50, and the switch unit 40 on the circuit board 25, the circuit of the data line is more stable and reliable, and the structure is more compact. And, reference Figure 4 and Figure 5 , the switch unit 40 is disposed on the circuit board 25. When the user operates the switch unit 40 such as a push-button switch, the circuit board 25 can provide bearing capacity.

[0053] This application also provides a charging device, which includes a charger and the data line as described above. The output end of the charger is electrically connected to the USB-A interface 10 of the data line.

[0054] Reference Figure 1 and Figure 2 For the charging device of the present application, by providing a USB-A interface 10, a USB-C interface 20, a first pull-up circuit unit 30, a switch unit 40, and a second pull-up circuit unit 50, the USB-A interface 10 is provided with a first power pin 11, and the USB-C interface 20 is provided with a second power pin 21, a third power pin 22, and a communication pin 23. The second power pin 21 is electrically connected to the first power pin 11 through a wire 60 to form a power path. The first end of the first pull-up circuit unit 30 is electrically connected to the power path, and the second end is electrically connected to the communication pin 23. The data cable can support the QC fast charging protocol. By providing the second pull-up circuit unit 50, the second pull-up circuit unit 50 is connected in series with the switch unit 40 and then connected between the power path and the third power pin 22. The user can connect the second pull-up circuit unit 50 between the power path and the third power pin 22 through the switch unit 40 according to the FCP / SCP fast charging requirement, so that the data cable can support the FCP / SCP fast charging protocol. Therefore, the present application can be compatible with the QC fast charging protocol and the FCP / SCP fast charging protocol, meet different charging requirements, and improve the user's charging experience.

[0055] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments or equivalently replace some of the technical features; and all such modifications and replacements should fall within the protection scope of the appended claims of the present invention.

Claims

1. A data cable, comprising a wire, a USB-A interface connected to one end of the wire, and a USB-C interface connected to the other end of the wire, characterized in that: The data line further includes a first pull-up circuit unit, a switch unit, and a second pull-up circuit unit, wherein, The USB-A interface is used to connect to a power supply device, and the USB-A interface is provided with a first power pin; The USB-C interface is used to connect to an electronic device, and the USB-C interface is provided with a second power pin, a third power pin, and a communication pin. The second power pin is electrically connected to the first power pin through the wire to form a power path; The first end of the first pull-up circuit unit is electrically connected to the power path, and the second end is electrically connected to the communication pin; The second pull-up circuit unit is connected in series with the switch unit and then connected between the power path and the third power pin. The second pull-up circuit unit is switched to be connected between the power path and the third power pin through the switch unit; Wherein, the second pull-up circuit unit includes a second pull-up resistor. The first end of the second pull-up resistor is electrically connected to the power path, and the second end is electrically connected to the third power pin through the switch unit; The switch unit includes a switching switch. Both ends of the switching switch are electrically connected to the third power pin and the second end of the second pull-up resistor respectively.

2. The data cable according to claim 1, characterized in that, The first pull-up circuit unit includes a first pull-up resistor. The first end of the first pull-up resistor is electrically connected to the power path, and the second end is electrically connected to the communication pin.

3. The data line according to claim 2, characterized in that The resistance value range r1 of the first pull-up resistor is (56 - 56*5%) kΩ ≤ r1 ≤ (56 + 56*5%) kΩ.

4. The data cable according to claim 2, wherein The resistance value range r2 of the second pull-up resistor is (56 - 56*5%) kΩ ≤ r2 ≤ (56 + 56*5%) kΩ.

5. The data cable according to claim 1, characterized in that The first pull-up circuit unit includes a plurality of third pull-up resistors. The plurality of third pull-up resistors are connected in parallel, and the first parallel connection node is electrically connected to the power path, and the second parallel connection node is electrically connected to the communication pin.

6. The data cable according to any one of claims 1 to 5, characterized in that, The data line further includes a first housing and a second housing. The USB-A interface is provided on the first housing, the USB-C interface is provided on the second housing. The wire includes a plurality of electrical connection lines. Each pin of the USB-A interface is respectively electrically connected to the corresponding pin of the USB-C interface through one of the electrical connection lines.

7. The data cable according to any one of claims 1 to 5, characterized in that The USB-C interface includes a plug-in terminal and a circuit board electrically connected to the plug-in terminal. The second power pin, the third power pin, the communication pin, the second pull-up circuit unit, and the switch unit are all provided on the circuit board.

8. A charging device, characterized in that, Including a charger and the data line according to any one of claims 1 to 7, the output end of the charger is electrically connected to the USB-A interface of the data line.

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