CN215341066U - Extension system of desktop computer USB3.2Gen2 interface - Google Patents

Abstract

The utility model discloses an expansion system of a desktop computer USB3.2Gen2 interface, which comprises: the system comprises a PC main control board, at least one PCIe interface, an interface conversion module and two interface expansion modules, wherein the interface conversion module is used for converting the PCIe interface into two first USB3.2Gen2 interfaces; the two interface expansion modules are respectively and electrically connected with the output ends of the two first USB3.2Gen2 interfaces, and the interface expansion modules are used for expanding the first USB3.2Gen2 interfaces into 4 second USB3.2Gen2 interfaces; the PCIe interface is also used for supplying power to the interface conversion module, the first USB3.2Gen2 interface, the interface expansion module and the second USB3.2Gen2 interface. The utility model can develop 8 second USB3.2Gen2 interfaces, effectively increase the number of the second USB3.2Gen2 interfaces, and the sum of the total bandwidths of the 8 second USB3.2Gen2 interfaces can reach 20Gbps, thereby meeting different requirements and having strong practicability.

Description

Extension system of desktop computer USB3.2Gen2 interface

Technical Field

The utility model relates to the field of USB interfaces, in particular to an expansion system of a desktop computer USB3.2Gen2 interface.

Background

Desktop computers in the prior art usually only have one or two USB3.2Gen interfaces, and have the problem that the USB3.2Gen interfaces are few and cannot meet the use requirements of users. In order to increase the number of USB3.2Gen interfaces, the USB3.2Gen2 interface is usually extended by USB HUB devices, and the main action principle of the USB HUB devices is as follows: by utilizing the USB HUB chip, 4 downlink interfaces are expanded through one uplink USB interface, so that the expansion of a USB3.2Gen2 interface is realized.

However, extending the USB3.2Gen2 interface with USB HUB devices has the following problems: 1. if the desktop computer does not have a USB3.2Gen2 interface, the USB3.2Gen2 interface cannot be expanded; 2. although 4 USB3.2Gen2 interfaces are expanded by using the USB HUB device, the total bandwidth of the 4 interfaces is limited by the uplink USB3.2Gen2 interface, namely the 4 USB3.2Gen2 interfaces share 10Gbps bandwidth; 3. the USB HUB equipment power supply is limited by the uplink interface of the desktop computer, so the power supply capacity of 4 downlink USB3.2Gen2 interfaces is also limited, if the power supply capacity of the USB HUB equipment needs to be improved, an external power supply adapter of the USB HUB needs to be provided, the USB HUB equipment power supply adapter is troublesome to use, and the convenience of a user in the use process is reduced.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, provides an expansion system of a desktop computer USB3.2Gen2 interface, and solves the problem that the USB3.2Gen2 interface cannot be expanded when the desktop computer does not have the USB3.2Gen2 interface in the prior art; the problem that the shared bandwidth of the developed 4 USB3.2Gen2 interfaces is 10Gbps is solved; the problem that the power supply capacity of the developed USB3.2Gen2 interface is limited and low is solved.

The technical scheme of the utility model is as follows: an extension system of a desktop computer USB3.2Gen2 interface, comprising: the system comprises a PC main control board, at least one PCIe interface arranged on the PC main control board, an interface conversion module electrically connected with the output end of the PCIe interface and two interface expansion modules, wherein the interface conversion module is used for converting the PCIe interface into two first USB3.2Gen2 interfaces; the two interface expansion modules are respectively electrically connected with the output ends of the two first USB3.2Gen2 interfaces, and the interface expansion modules are used for expanding the first USB3.2Gen2 interface into 4 second USB3.2Gen2 interfaces; the PCIe interface is also used for supplying power to the interface conversion module, the first USB3.2Gen2 interface, the interface expansion module and the second USB3.2Gen2 interface. The two interface expansion modules are respectively connected with two first USB3.2Gen2 interfaces, and after one interface expansion module is connected with one first USB3.2Gen interface, 4 second USB3.2Gen interfaces can be expanded, so that 8 second USB3.2Gen2 interfaces can be expanded after the two interface expansion modules are connected with two first USB3.2Gen2 interfaces, and the number of the second USB3.2Gen2 interfaces is effectively increased.

Further, the PCIe interface is a PCIe Gen3x2 interface.

Further, the bandwidth of the PCIe Gen3x2 interface is 20 Gbps.

Further, the bandwidth of the two first USB3.2Gen2 interfaces is 10 Gbps.

Furthermore, the interface conversion module is a USB control chip, and the interface expansion module is a USB HUB chip.

Further, the type of the USB control chip is ASM2142 or ASM3142, and the type of the USB HUB chip is VL 822-Q8.

By adopting the scheme, the utility model provides an expansion system of a desktop computer USB3.2Gen2 interface, which has the following beneficial effects:

1. 8 second USB3.2Gen2 interfaces can be developed, the number of the second USB3.2Gen2 interfaces is effectively increased, the sum of the total bandwidth of the 8 second USB3.2Gen2 interfaces can reach 20Gbps, different requirements can be met, and the practicability is high;

2. for different desktop computers, 8 second USB3.2Gen2 interfaces can be developed, so that the compatibility is strong;

3. the power supply capability of the second USB3.2Gen2 interface can be ensured without an additional power supply adapter, the convenience in the use process is effectively improved, and the experience feeling of a user in the use process is improved.

Drawings

FIG. 1 is a functional framework diagram of the present invention;

FIG. 2 is a circuit diagram of a PCIe interface of the present invention;

FIG. 3 is a circuit diagram of an interface conversion module according to the present invention;

FIG. 4 is a circuit diagram of an interface expansion module of the present invention;

FIGS. 5A-5B are circuit diagrams of two first USB3.2Gen2 interfaces according to the present invention;

fig. 6A-6D are circuit diagrams of four second USB3.2Gen2 interfaces developed by an interface expansion module according to the present invention.

Wherein: the system comprises a PC main control board 1, a PCIe interface 2, an interface conversion module 3, an interface expansion module 4, a first USB3.2Gen2 interface 5 and a second USB3.2Gen2 interface 6.

Detailed Description

The utility model is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 1-6D, the present invention provides an expansion system of USB3.2Gen2 interface for desktop computer, comprising: the interface conversion module 3 is used for converting the PCIe interface 2 into two first USB3.2Gen2 interfaces 5; the two interface expansion modules 4 are respectively electrically connected with the output ends of the two first USB3.2Gen2 interfaces 5, and the interface expansion modules 4 are used for expanding the first USB3.2Gen2 interfaces 5 into 4 second USB3.2Gen2 interfaces 6; the PCIe interface 2 is further configured to supply power to the interface conversion module 3, the first USB3.2Gen2 interface 5, the interface expansion module 4, and the second USB3.2Gen2 interface 6; specifically, in this embodiment, the interface conversion module 3 is a USB control chip and has a model of ASM3142, and the interface expansion module 4 is a USB HUB chip and has a model of VL 822-Q8. The PCIe interface 2 is converted into a first USB3.2Gen2 interface 5 through the interface conversion module 3, and two first USB3.2Gen2 interfaces 5 can be converted out, two interface expansion modules 4 are arranged, the two interface expansion modules 4 are respectively connected with the two first USB3.2Gen2 interfaces 5 to realize the connection with the interface conversion module 3, and after one interface expansion module 4 is connected with one first USB3.2Gen interface, 4 second USB3.2Gen interfaces can be expanded, therefore, after the two interface expansion modules 4 are connected with the two first USB3.2Gen2 interfaces, 8 second USB3.2Gen2 interfaces 6 can be expanded, the number of the second USB3.2Gen2 interfaces 6 is effectively increased, so as to meet different requirements, and the practicability is strong; on the other hand, even if the desktop computer does not have a USB3.2Gen2 interface, 8 second USB3.2Gen interfaces (equivalent to the USB3.2Gen2 interface in the prior art) can be developed through the expansion system of the desktop computer USB3.2Gen2 interface, so that the desktop computer can be compatible with different types of desktop computers and is high in compatibility; meanwhile, the expansion system of the desktop computer USB3.2Gen2 interface supplies power to the interface conversion module 3, the first USB3.2Gen2 interface 5, the interface expansion module 4 and the second USB3.2Gen2 interface 6 through the PCIe interface 2, each second USB3.2Gen2 interface 6 can provide 5V and 3A power supply capacity to the maximum extent, the load capacity of the second USB3.2Gen2 interface 6 is effectively improved, a power supply adapter is not needed to be added, the power supply capacity of the expansion system can be increased, the convenience in the use process is effectively improved, and the experience of a user in the use process is improved.

Specifically, in this embodiment, the PCIe interface 2 is a PCIe Gen3x2 interface, the bandwidth of the PCIe Gen3x2 interface is 20Gbps, the bandwidths of the two first USB3.2Gen2 interfaces 5 are both 10Gbps, and it is ensured that the sum of the total bandwidths of the eight second USB3.2Gen2 interfaces 6 can reach 20 Gbps.

In summary, the present invention provides an expansion system of a desktop USB3.2Gen2 interface, which has the following advantages:

1. 8 second USB3.2Gen2 interfaces can be developed, the number of the second USB3.2Gen2 interfaces is effectively increased, the sum of the total bandwidth of the 8 second USB3.2Gen2 interfaces can reach 20Gbps, different requirements can be met, and the practicability is high;

2. for different desktop computers, 8 second USB3.2Gen2 interfaces can be developed, so that the compatibility is strong;

3. the power supply capability of the second USB3.2Gen2 interface can be ensured without an additional power supply adapter, the convenience in the use process is effectively improved, and the experience feeling of a user in the use process is improved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. An expansion system of a desktop computer USB3.2Gen2 interface, comprising: the system comprises a PC main control board, at least one PCIe interface arranged on the PC main control board, an interface conversion module electrically connected with the output end of the PCIe interface and two interface expansion modules, wherein the interface conversion module is used for converting the PCIe interface into two first USB3.2Gen2 interfaces; the two interface expansion modules are respectively electrically connected with the output ends of the two first USB3.2Gen2 interfaces, and the interface expansion modules are used for expanding the first USB3.2Gen2 interface into 4 second USB3.2Gen2 interfaces; the PCIe interface is also used for supplying power to the interface conversion module, the first USB3.2Gen2 interface, the interface expansion module and the second USB3.2Gen2 interface.

2. The system of claim 1, wherein the PCIe interface is a PCIe Gen3x2 interface.

3. The system of claim 2, wherein the PCIe Gen3x2 interface has a bandwidth of 20 Gbps.

4. The system of claim 3, wherein the two first USB3.2Gen2 interfaces each have a bandwidth of 10 Gbps.

5. The system of claim 1, wherein the interface conversion module is a USB controller chip, and the interface expansion module is a USB HUB chip.

6. The system of claim 5, wherein the USB controller chip is ASM2142 or ASM3142, and the USB HUB chip is VL 822-Q8.

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