USB data line with auxiliary fast charging function

Abstract

The utility model provides a USB (Universal Serial Bus) data line with an auxiliary quick charging function, which relates to the technical field of electronic equipment and is technically characterized by comprising a host end connector, an equipment end connector, a charging end connector and two leads, one end of each lead is connected onto the host end connector, and the other end of each lead is connected onto the equipment end connector. One end of the host end connector is connected to the equipment end connector, the other end of the host end connector is connected to the equipment end connector and the charging end connector, an MCU chip is arranged in the host end connector, and the MCU chip is a charging protocol MCU chip for communication between a QC and a PD. Through the embedded arrangement of the MCU chip, when the host end connector is inserted into a host end and the charging end connector is connected with a power supply, voltage and current entering the charging end connector can be prevented from charging the host end, so that the host end is protected from being burnt out, quick charging of a charger, such as 9V2A, 12v2A and the like, is realized, and the charging efficiency is improved. Therefore, the equipment end can drive the power supply of higher-power equipment while receiving the data transmission of the host.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a USB data cable with auxiliary fast charging. Background Art

[0002] With the continuous progress of virtual reality technology, in order to meet the power demand of VR devices during high-load operation, a mobile phone or computer device is usually used, or the power supply is directly connected to the USB C interface for power supply. However, using a device for power supply is not only limited by the length and freedom of the connection cable, but also the power supply is relatively small and cannot meet the use of higher-power devices.

[0003] By wired power supply, it can be ensured that the device will not affect the user experience due to insufficient power during high-performance operation. In the prior art, in order to ensure charging during the operation of the device, a USB structure is usually connected to the host end to access the power supply and directly connect the positive and negative poles, so as to realize the power supply to the VR device. However, there are some limitations in its use.

[0004] 1. It can only be charged at 5V. Exceeding 5V will burn out the computer USB socket.

[0005] 2. It does not have a fast charging function because simply connecting the power cord cannot match the fast charging protocol.

[0006] 3. It cannot prevent users from misoperating and connecting a charger with a voltage exceeding 5V, which will burn out the computer USB interface. Content of the Utility Model

[0007] The purpose of this application is to solve the technical problems existing in the wired power supply of VR devices in the prior art.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A USB data cable with auxiliary fast charging includes a host end connector, a device end connector, a charging end connector and a wire. Among them, there are two wires. One end of each of the two wires is connected to the host end connector, and the other ends are respectively connected to the device end connector and the charging end connector. An MCU chip is provided in the host end connector, and the MCU chip is a charging protocol MCU chip for QC and PD communication.

[0010] Preferably, a D1 diode is provided in the host end connector, and the D1 diode is used for the function of reverse cut-off current.

[0011] Preferably, the host end connector is a Type-A interface.

[0012] Preferably, a housing is provided on the outer periphery of the port of the host connector. The housing is sleeved on the port of the host connector and completely covers it.

[0013] Preferably, the device connector is a Type-C interface, and the end head of the device connector and the main body are arranged in an L shape.

[0014] Preferably, the charging connector is a CF plug for connecting to a power source to supply power to the VR device.

[0015] Preferably, one of the wires is a USB2.0 cable for connecting the host connector and the charging connector.

[0016] Preferably, the other wire is a VR cable for connecting the host connector and the device connector.

[0017] A USB data cable with auxiliary fast charging provided by the present application, through the embedded setting of the MCU chip, when the host connector is inserted into the host and the charging connector is connected to the power source, it can prevent the voltage and current entering from the charging connector from charging the host, thus protecting the host from being burned out. At the same time, through the addition of the MCU chip, fast charging of the charger is achieved, such as fast charging of 9V 2A, 12V 2A, etc., enabling the device end to drive the power supply of higher-power devices, such as surveillance cameras, while receiving host data transmission. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of a USB data cable with auxiliary fast charging in an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the pin assignment of a USB data cable with auxiliary fast charging in an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the host connector of a USB data cable with auxiliary fast charging in an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the MCU chip circuit of a USB data cable with auxiliary fast charging in an embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the device connector structure of a USB data cable with auxiliary fast charging in an embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of the charging connector of a USB data cable with auxiliary fast charging in an embodiment of the present invention;

[0024] Figure 7 This is a schematic circuit diagram of a USB data cable with auxiliary fast charging in an embodiment of the present utility model.

[0025] Legend description:

[0026] 1. Host - side connector; 2. Device - side connector; 3. Charging - side connector; 4. VR wire;

[0027] 5. USB2.0 wire; 6. MCU chip; 7. Housing. Specific implementation mode

[0028] The following further details the present utility model in conjunction with specific embodiments.

[0029] Please refer to Figure 1 and Figure 2 A USB data cable with auxiliary fast charging includes a host - side connector 1, a device - side connector 2, a charging - side connector 3 and wires. Among them, there are two wires. One end of the two wires is connected to the host - side connector 1, and the other ends are respectively connected to the device - side connector 2 and the charging - side connector 3.

[0030] Please refer to Figure 1 and Figure 3 In one embodiment, the host - side connector 1 is a Type - A interface. And, in one embodiment, a housing 7 is provided on the outer periphery of the port of the host - side connector 1. The housing 7 is sleeved on the port of the host - side connector 1 and completely covers it, protecting the port through the housing 7.

[0031] In one embodiment, in order to achieve fast charging of the charger, please refer to Figure 3 and Figure 4 An MCU chip 6 is provided inside the host - side connector 1. By embedding the MCU chip 6, the voltage and current coming in from the charging - side connector 3 are prevented from charging the host - side connector 1, thus protecting the host - side. At the same time, through the setting of the MCU chip 6, some fast - charging functions of the charger can be achieved, such as 9V 2A; 12V 2A, etc. fast charging. Therefore, while the device - side connector 2 is transmitting data from the host, it can drive the power supply of higher - power devices, such as surveillance cameras, etc.

[0032] In one embodiment, please refer to Figure 4, the MCU chip 6 is a charging protocol MCU chip for QC and PD communication. After the host connector 1 is inserted into the computer and the device connector 2 is inserted into the VR device, TX / RX and DP / DM data transmission are carried out, and communication with the downstream device is carried out through the switching of the CC1 channel. After successful handshaking, PD fast charging is carried out. When the backend device is a QC protocol, D+ / D- are used for communication identification, and after successful handshaking, QC fast charging is carried out. LDO - 3.3V supplies auxiliary power to the MCU. The D1 diode in the circuit functions to block reverse current, preventing power interference from burning out the upstream computer and playing a protective role.

[0033] Please refer to Figure 1 and Figure 5 , the device connector 2 is a Type-C interface. And, in one embodiment, the end head of the device connector 2 and the main body are arranged in an L shape to ensure the stable connection between the device connector 2 and the VR device. In one embodiment, a housing 7 made of the same material as the outer side of the host connector 1 is provided on the device connector 2 to protect the device connector 2 through the housing 7. In other embodiments, the device connector 2 can also be any one of a BM interface, a micro B interface or other known connector interfaces.

[0034] Please refer to Figure 6 , the charging connector 3 is a CF plug for connecting to a power source to supply power to the VR device.

[0035] The main function of the CF plug is to connect to a power adapter or a power socket to provide a stable power supply for the VR device.

[0036] In practical applications, through its unique structure and design, the CF plug can ensure a tight connection with the power interface, thereby reducing losses and interference during power transmission. This tight connection is particularly important for VR devices because VR devices usually require high power to drive their high-performance display screens, processors, sensors and other components.

[0037] By using the CF plug, the VR device can obtain a continuous and stable power supply, thus ensuring that it will not have a power shortage or performance degradation during long-term use. This is crucial for providing a smooth and non-lagging VR experience.

[0038] In addition, the CF plug may also have some additional functions, such as overcurrent protection, overvoltage protection, etc., to increase the safety of use. These protection functions can prevent damage to the VR device caused by abnormal power, thereby extending the service life of the device.

[0039] Please refer to Figure 1 andFigure 2 There are two wires provided, one of the wires is a USB 2.0 cable 5 for connecting the host connector 1 and the charging connector 3, and the other wire is a VR cable 4 for connecting the host connector 1 and the device connector 2.

[0040] Working principle:

[0041] Please refer to Figure 7 ; When the Type-A port is inserted into the computer and the Type-C is inserted into the VR device for TX / RX and DP / DM data transmission, communicate with the downstream device through the switching of the CC1 channel. After successful handshaking, perform PD fast charging. When the backend device is a QC protocol, D+ / D- communicate and identify. After successful handshaking, perform QC fast charging. The LDO-3.3V supplies auxiliary power to the MCU chip 6. The D1 diode in the circuit functions to block the reverse cut-off current, preventing power interference from burning out the upstream computer and playing a protective role.

[0042] In summary, for a USB data cable with auxiliary fast charging provided by the present application, through the embedded setting of the MCU chip 6, when the host connector 1 is inserted into the host side and the charging connector 3 is connected to the power supply, it can prevent the voltage and current entering from the charging connector 3 from charging the host side, thus protecting the host side from being burned out. At the same time, with the addition of the MCU chip 6, fast charging of the charger is achieved, such as fast charging of 9V 2A, 12V 2A, etc. When the device side receives host data transmission, it can drive the power supply of higher-power devices, such as surveillance cameras, etc.

Claims

1. A USB data cable with auxiliary fast charging, comprising a host-side connector, a device-side connector, a charging-side connector and a wire, wherein two wires are provided, one end of the two wires is connected to the host-side connector, and the other end thereof is connected to the device-side connector and the charging-side connector, respectively, characterized in that: The host-side connector is provided with an MCU chip, and the MCU chip is a charging protocol MCU chip for communication between QC and PD.

2. A USB data cable with auxiliary fast charging according to claim 1, characterized in that: A D1 diode is disposed in the host-side connector, and the D1 diode is used to perform a reverse current cutoff function.

3. A USB data cable with auxiliary fast charging according to claim 2, characterized in that: The host-side connector is a Type-A interface.

4. A USB data cable with auxiliary fast charging according to claim 3, characterized in that: A sleeve is arranged on the periphery of the port of the host-end connector, and the sleeve is sleeved on the port of the host-end connector and completely covers it.

5. A USB data cable with auxiliary fast charging according to claim 4, characterized in that: The device-end connector is a Type-C interface, and the end portion and the main body of the device-end connector are arranged in an L shape.

6. A USB data cable with auxiliary fast charging according to claim 5, characterized in that: The charging terminal connector is a CF plug, which is used to connect to a power adapter or a power socket to power the VR device.

7. A USB data cable with auxiliary fast charging according to claim 6, characterized in that: One of the wires is a USB 2.0 wire, which is used to connect the host-end connector and the charging-end connector.

8. A USB data cable with auxiliary fast charging according to claim 7, characterized in that: The other wire is a VR wire, which is used to connect the host-side connector and the device-side connector.

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