CN207052912U - A kind of data line and USB data line interface - Google Patents

The utility model discloses a kind of data line and USB data line interface, it may include signal of communication line and be connected to the A types USB interface and c-type USB interface at the signal of communication line both ends, the A types USB interface includes the first communications pins, and the c-type USB interface includes VCONN pins；First communications pins are connected with the VCONN pins by signal of communication line, to be communicated between the A types USB interface and the c-type USB interface.Compared to prior art, the both ends of data line are connected to A types USB interface and c-type USB interface, it is thus possible to realize the power supply adaptor for possessing A type USB interfaces with possessing the compatible of the terminal device of c-type USB interface；And the A types USB interface includes first communications pins that are connected with the VCONN pins in the c-type USB interface, it is thus possible to realizes that PD communicates.

Data transmission line and USB data line interface

Technical Field

The utility model relates to a data transmission technical field especially relates to a data transmission line and USB data line interface.

Background

Because the Type-C interface has the characteristics of supporting blind plugging on the front side and the back side, small size and the like, more and more terminal equipment begin to adopt the Type-C interface to carry out information interaction between the terminal equipment and the adapter, such as charging of the terminal equipment and the like. In order to improve the efficiency and flexibility of data transmission between a terminal device and an adapter, a data transmission line meeting the USB Power Delivery protocol is often used in the industry to perform information interaction between the adapter (or other devices) and the terminal device, such as a data transmission line converting USB Type-C interface to USB Type-C interface, or a data transmission line converting USB Type-a interface to USB Type-C interface.

However, devices such as conventional adapters, PCs (Personal computers), servers, and in-vehicle entertainment devices generally employ USB Type-a interfaces, which do not have communication pins capable of supporting PD communication. Therefore, when the data transmission line of the USB Type-C interface to the USB Type-C interface is used for communication between the equipment and the terminal equipment, the problem of incompatibility may exist; when the data transmission line of the USB Type-A interface to the USB Type-C interface is used for communication between the devices and the terminal device, the PD communication may not be realized.

That is, the conventional data transmission line has the problems of poor compatibility and incapability of realizing PD communication.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a data transmission line and USB data line interface for solve the problem that compatibility that current data transmission line exists is relatively poor and can't realize the PD communication.

The embodiment of the utility model provides a data transmission line, including communication signal line and connect in A type USB interface and the C type USB interface at communication signal line both ends, including first communication pin in the A type USB interface, including VCONN pin in the C type USB interface;

the first communication pin and the VCONN pin are connected through a communication signal line, so that the A-type USB interface and the C-type USB interface can communicate with each other.

Correspondingly, the embodiment of the utility model provides a USB data line interface still provides, can include insulator, last first communication pin, first VBUS pin, first GND pin, first data pin and the second data pin of being equipped with of insulator, first communication pin is arranged in linking to each other through the VCONN pin in communication signal line and the C type USB interface, so that USB data line interface with can communicate between the C type USB interface.

The utility model discloses beneficial effect as follows:

the embodiment of the utility model provides a data transmission line and USB data line interface can include communication signal line and connect in A type USB interface and the C type USB interface at communication signal line both ends, including first communication pin in the A type USB interface, including the VCONN pin in the C type USB interface; the first communication pin and the VCONN pin are connected through a communication signal line, so that the A-type USB interface and the C-type USB interface can communicate with each other. Compared with the prior art, in the embodiment of the utility model, the both ends of data transmission line are connected with A type USB interface and C type USB interface respectively, therefore can realize the compatibility of the terminal equipment that possesses C type USB interface with the power adapter that possesses A type USB interface; and the A-type USB interface comprises a first communication pin connected with a VCONN pin in the C-type USB interface, so PD communication can be realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a data transmission line according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example (b):

in order to solve the problem that the compatibility that current data transmission line exists is relatively poor and can't realize the PD communication, the embodiment of the utility model provides a data transmission line, as shown in fig. 1, it does the embodiment of the utility model provides an in data transmission line's structure schematic diagram. Specifically, as shown in fig. 1, the data transmission line in the embodiment of the present invention may include a communication signal line 11, and an a-type USB interface 12 and a C-type USB interface 13 connected to two ends of the communication signal line, where the a-type USB interface 12 includes a first communication pin, and the C-type USB interface 13 includes a VCONN pin;

the first communication pin and the VCONN pin are connected through a communication signal line 11 to enable communication between the type a USB interface 12 and the type C USB interface 13.

That is to say, in the embodiment of the present invention, the data transmission line may include a communication signal line, and an a-type USB interface and a C-type USB interface connected to two ends of the communication signal line, where the a-type USB interface includes a first communication pin, and the C-type USB interface includes a VCONN pin; the first communication pin and the VCONN pin are connected through a communication signal line, so that the A-type USB interface and the C-type USB interface can communicate with each other. Compared with the prior art, in the embodiment of the utility model, the both ends of data transmission line are connected with A type USB interface and C type USB interface respectively, therefore can realize the compatibility of the terminal equipment that possesses C type USB interface with the power adapter that possesses A type USB interface; and the A-type USB interface comprises a first communication pin connected with a VCONN pin in the C-type USB interface, so PD communication can be realized.

It should be noted that the Type a USB interface may generally be a USB Type-a interface, and the Type C USB interface may generally be a USB Type-C interface, which is not limited in this respect by the embodiment of the present invention.

Further, the a-type USB interface 12 may be configured to be connected to an adapter, the C-type USB interface 13 may be configured to be connected to a device to be charged, and the VCONN pin transmits a charging control signal sent by the device to be charged to the first communication pin through the communication signal line, so that the adapter controls the adapter to output a target charging voltage and/or a target charging current according to the charging control signal to charge the device to be charged.

It should be noted that the adapter may be a power adapter or a charger bank having a USB Type-a interface, and of course, the adapter may also be a PC, a server, or a device for vehicle entertainment, as long as the adapter has a USB Type-a interface and can charge the device to be charged; treat that battery charging outfit can be for terminal equipment such as cell-phone, intelligent wrist-watch, panel computer that possess USB Type-C interface usually, the embodiment of the utility model provides a do not describe to this repeatedly.

Specifically, in the prior art, the USB Type-a interface may generally include a VBUS pin for connecting a power line ground, a GND pin for grounding, a D +, D-pin for data transmission, a VBUS pin for connecting a power line, a GND pin for grounding, Dp1, Dp2, Dn1, and Dn2 pins for data transmission, a VCONN pin for implementing PD communication, and a CC pin for identifying a data line. Therefore, the wire standard of the data transmission line for converting the traditional USB Type-a interface into the USB Type-C interface can be shown in table 1:

TABLE 1 existing wire standard table for data transmission line for converting USB Type-A interface into USB Type-C interface

As can be seen from table 1, in the data transmission line for converting the USB Type-a interface into the USB Type-C interface, since neither the CC pin for satisfying the wire specification nor the VCONN pin for implementing PD communication in the USB Type-C interface is connected to any pin in the USB Type-a interface, the data transmission line for converting the USB Type-a interface into the USB Type-C interface does not satisfy the wire specification of the USB Type-C interface, nor can implement PD communication.

Wherein, it should be noted that, according to the specification of the USB Type-C wire, the CC pin in the USB Type-C interface needs to be pulled up to VBUS through the pull-up resistor of 56 ± 5% K Ω, that is, the pull-up resistor of 56 ± 5% K Ω is connected to the VBUS pin in the USB Type-C interface.

In order to make the embodiment of the utility model provide an in the data transmission line both satisfy USBType-C's wire rod specification, satisfy the demand of PD communication again, the embodiment of the utility model provides an in the data transmission line's of USBType-A interface commentaries on classics USBType-C interface wire rod standard table can be as shown in table 2:

TABLE 2 in the embodiment of the utility model the embodiment of the wire rod standard table of the data transmission line of USB Type-A interface to USB Type-C interface

As can be seen from table 2, in the embodiment of the present invention, a first communication pin (i.e., the CC1 pin) can be defined in the existing USB Type-a interface, and the first communication pin can be connected to the VCONN pin in the USB Type-C interface, so as to transmit the charging control signal between the adapter and the device to be charged, thereby implementing PD communication.

Optionally, to prevent a communication signal line, an adapter or a device to be charged from being burned out, the first communication pin may be connected to the VCONN pin of the Type C USB interface 13 (i.e., USB Type-C interface) through a resistor R.

Wherein, resistance R's resistance can be 1 ~ 1000 omega, of course, it is to explain that resistance R's resistance can also set up to other numerical values as long as can satisfy the actual demand can, the embodiment of the utility model discloses an this does not do any restriction.

Specifically, the resistor R may be provided in the type C USB interface 13; alternatively, it may be provided in the communication signal line; alternatively, it may be provided in the type a USB interface 12.

Preferably, in order to improve the convenience of integration, the resistor R may be disposed in the C-type USB interface, which is not described herein again.

Further, the type a USB interface 12 may meet the USB2.0 specification. That is, the type a USB interface 12 may be a USB2.0Standard-a interface, which is not described in detail herein.

It should be noted that, as shown in table 2, when the type a USB interface 12 is a USB2.0Standard-a interface, the type a USB interface 12 may further include a first VBUS pin (e.g., VBUS1 shown in table 2), a first GND pin (e.g., GND1 shown in table 2), a first data pin (e.g., D +) shown in table 2, and a second data pin (e.g., D-) shown in table 2).

In addition, when the type a USB interface 12 is a USB2.0Standard-a interface, the first communication pin may be a pin newly added to the USB2.0Standard-a interface, which is not limited in this embodiment of the present invention.

Further, the type a USB interface 12 may meet the USB3.0 specification. That is, the type a USB interface 12 may be a USB3.0 Standard-a interface, which is not described in detail herein.

It should be noted that, when the type a USB interface 12 is a USB3.0 Standard-a interface, the type a USB interface 12 may further include a first VBUS pin, a first GND pin, a first data pin, and a second data pin.

In addition, when the type a USB interface 12 is a USB3.0 Standard-a interface, the first communication pin may be any floating pin in the USB3.0 Standard-a interface, which is not limited in this embodiment of the present invention.

Optionally, when the type a USB interface 12 is a USB3.0 Standard-a interface, the first communication pin may be one of the following pins of the type a USB interface that meets USB3.0 specification: SSRX-pin, SSRX + pin, DRAIN pin, SSTX-pin, SSTX + pin.

That is, when the a-type USB interface 12 is a USB3.0 Standard-a interface, the first communication pin may be an SSRX-pin, an SSRX + pin, a DRAIN pin, an SSTX-pin, or an SSTX + pin in the USB3.0 Standard-a interface, and any pin may be left alone, which is not described herein.

As can be seen from the above, in the embodiment of the present invention, if the type a USB interface 12 is a USB2.0Standard-a interface, the first communication pin may be a newly added pin in the USB2.0Standard-a interface; when the type A USB interface is a USB3.0 Standard-A interface, the first communication pin can be any one suspended pin in the USB3.0 Standard-A interface, so that PD communication is realized on the basis of lower cost.

Further, the type C USB interface 13 may further include a second communication pin (such as CC2 shown in table 2) and a second VBUS pin (such as VBUS2 shown in table 2):

the second communication pin is connected to the second VBUS pin in the C-type USB interface 13 through a pull-up resistor Rp.

It has been stated in the foregoing that in the USB Type-C wire specification, the CC pin in the USB Type-C interface needs to be pulled up to VBUS through a pull-up resistor of 56 ± 5% K Ω, and therefore, in the USB Type-a interface to USB Type-C interface data transmission line, it is still necessary to connect a pull-up resistor to the second communication pin of the USB Type-C interface and connect the pull-up resistor to the power line (i.e., VBUS2) to ensure the compatibility between the adaptor and the device to be charged.

Optionally, the pull-up resistor Rp may be provided in the type a USB interface 12; alternatively, the pull-up resistance Rp may be provided in the communication signal line; alternatively, the pull-up resistor Rp may be provided in the C-type USB interface 13.

Preferably, for convenience of integration, the pull-up resistor Rp may be disposed in the a-type USB interface 12 or the C-type USB interface 13, which will not be described in detail.

That is to say, the embodiment of the utility model provides an in the data transmission line both satisfied USB Type-C's wire rod specification, CC2 pin is connected to VBUS's requirement through 56 ± 5% K omega pull-up resistance promptly, can be compatible on the market existing USBType-A interface change USB Type-C interface's wire rod, can also realize PD communication through the communication signal line between CC1 and the VCONN. Therefore, when the embodiment of the present invention provides an in data transmission line and the equipment to be charged who possesses Type-C interface of other brands link to each other, take charging device still can carry out the discernment of Power output equipment (Power Source promptly) and Power receiving equipment (Power Sink promptly), and then still can realize waiting charging device's the charging.

Correspondingly, the embodiment of the utility model provides a USB data line interface is still provided, USB data line interface can include insulator, insulator can be equipped with first communication pin, first VBUS pin, first GND pin, first data pin and second data pin, first communication pin can be used to link to each other through the VCONN pin in communication signal line 11 and the C type USB interface 13, so that USB data line interface with can communicate between the C type USB interface.

The embodiment of the utility model provides a data transmission line and USB data line interface can include communication signal line and connect in A type USB interface and the C type USB interface at communication signal line both ends, including first communication pin in the A type USB interface, including the VCONN pin in the C type USB interface; the first communication pin and the VCONN pin are connected through a communication signal line, so that the A-type USB interface and the C-type USB interface can communicate with each other. Compared with the prior art, in the embodiment of the utility model, the both ends of data transmission line are connected with A type USB interface and C type USB interface respectively, therefore can realize the compatibility of the terminal equipment that possesses C type USB interface with the power adapter that possesses A type USB interface; and the A-type USB interface comprises a first communication pin connected with a VCONN pin in the C-type USB interface, so PD communication can be realized.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.