CN105703180A - USB2.0 and USB3.0 switch - Google Patents

Abstract

The present invention discloses a USB2.0 and USB3.0 switcher, including: a USB male head, which is connected with a USB interface on a computer machine, and the USB male head has a first signal pin group and a second signal pin Group and power pin group; USB female head, is connected with the USB interface of USB3.0 equipment, and described USB female head has first signal pin group and second signal pin group and power supply pin group, described USB The power supply pin group of the female head is docked with the power supply pin group of the USB male head; the switching circuit has a slider on it, and the slider slides to select the first signal pin group of the USB male head. The first signal pin group of the USB female connector is connected, or the second signal pin group of the USB male connector is connected with the second signal pin group of the USB female connector. The test equipment is reduced; partial plugging damage and operation troubles are avoided, and man-hours are saved.

Description

USB2.0, USB3.0 switcher

【Technical field】

The invention relates to a switcher, in particular to a USB2.0, USB3.0 switcher.

【Background technique】

For electronic products such as notebook computers, there are usually several USB (UniversalSerialBus, universal serial bus) interfaces on it. The current USB interfaces on electronic products are usually USB3.0 interfaces. Before the electronic products leave the factory, tests will be carried out to ensure that the functions of each interface are qualified. For the USB3.0 interface, in order to be backward compatible, it is necessary not only to test whether it can work normally when connected to USB3.0 devices, but also to test whether the devices connected to USB2.0 can work normally. USB2.0 devices will use a set of send (transport) and receive (receive) pins, while USB3.0 devices will use two sets of send and receive pins.

The current test method is to use USB2.0 equipment (such as U disk), USB3.0 equipment (such as U disk) to carry out USB2.0 and USB3.0 functional tests on the USB interface of the electronic product respectively, so Different USB devices need to be used during the test, and two plugging and unplugging are required.

It can be seen that, with the above test method, the number of plugging and unplugging is large, the testing process is cumbersome, time-consuming and easy to cause plugging damage; at the same time, two types of U disks need to be used, resulting in unnecessary waste.

In view of this, it is necessary to develop a USB2.0, USB3.0 switcher to solve the above problems.

【Content of invention】

Therefore, the purpose of the present invention is to provide a USB2.0, USB3.0 switcher, which solves the problem of switching backward compatible USB3.0 devices, so as to achieve their functions of working in USB2.0 and USB3.0 states respectively. .

In order to achieve the above object, the USB2.0 and USB3.0 switches provided by the present invention include:

The USB male head is connected with the USB interface on the computer machine, and the USB male head has a power supply pin group and an optional first signal pin group and a second signal pin group;

The USB female head is connected with the USB interface of the USB3.0 device. The USB female head has a power supply pin group and an optional first signal pin group and a second signal pin group. The power pin group is docked with the power pin group of the USB male head;

A switching circuit with a slider on it, and the slider slides to select and connect the first signal pin group of the USB male head with each pin of the first signal pin group of the USB female head in one-to-one correspondence , or connect the second signal pin group of the USB male connector to each pin of the second signal pin group of the USB female connector in a one-to-one correspondence.

Optionally, the first signal pin group includes two pins of USB2.0, which are receiving pins and sending pins respectively.

Optionally, the second signal pin group includes two pairs of pins of USB3.0, and each pair of pins includes two pins, which are receiving pins and sending pins respectively.

Compared with the prior art, by using the USB2.0 and USB3.0 switcher of the present invention, by sliding the selection of the slider, it is possible to switch between the computer machine and the USB3.0 device for USB2.0 signal pins. connection or the connection of the USB3.0 signal pin, so as to achieve the function of the USB3.0 device working in the USB2.0 or USB3.0 state respectively. It can be seen that using one USB3.0 device can achieve the test of the two functions of the computer machine, reducing the number of test equipment; at the same time, avoiding the plugging damage caused by the multiple plugging and unplugging of the two USB devices, and the operation Save trouble and save man-hours.

【Description of drawings】

FIG. 1 is a schematic diagram of the application structure of a preferred embodiment of the USB2.0 and USB3.0 switch of the present invention.

FIG. 2 is a schematic structural diagram of a preferred embodiment of the USB2.0 and USB3.0 switch of the present invention.

【detailed description】

Please refer to Fig. 1 and Fig. 2 together. Fig. 1 shows a schematic diagram of the application structure of a preferred embodiment of the USB2.0 and USB3.0 switcher of the present invention, and Fig. 2 shows the USB2.0 and USB3. 0 is a schematic structural diagram of a preferred embodiment of the switch.

In order to achieve the above purpose, the present invention provides a USB2.0, USB3.0 switcher, the switcher 100 includes:

USB male head 101 is connected with the USB interface 201 on the computer machine 200 (such as a notebook computer, which is not limited to this, and can be other electronic products to be tested), and the USB male head 101 has a power supply pin group 1010 and optional first signal pin group 1011 and second signal pin group 1012;

The USB female head 102 is cooperatively connected with the USB interface 301 of the USB3.0 device 300 (which can be a USB flash drive). The USB3.0 device 300 is backward compatible and has the functions of USB2.0 and USB3.0. The head 102 has a power supply pin group 1020 and a first signal pin group 1021 and a second signal pin group 1022 that can be used optionally. The power supply pin group 1020 of the USB female head 102 is connected to the power supply pin group 1010 docking;

The switching circuit 103 has a slider 1030 on it, and the slider 1030 slides to select the first signal pin group 1011 of the USB male connector 101 and the first signal pin group 1021 of the USB female connector 102. The pins are connected in one-to-one correspondence (not shown one by one due to layout restrictions in FIG. 2 ), or the second signal pin group 1012 of the USB male connector 101 is connected to the second signal pin group of the USB female connector 102. The pins of 1022 are connected in one-to-one correspondence (not shown in FIG. 2 due to layout restrictions).

Wherein, the first signal pin groups 1011, 1021 respectively include two pins of USB2.0, which are respectively receiving and sending pins; the second signal pin groups 1012, 1022 respectively include two pins of USB3.0 Pairs of pins, each pair of pins includes two pins, which are receiving and sending pins.

Utilize the USB2.0, USB3.0 switcher of the present invention, by sliding the selection of the slider 1030, it is possible to switch between the computer machine 200 and the USB3.0 device 300 to connect the USB2.0 signal pin or the USB3. 0 signal pin, so as to achieve the function of the USB3.0 device 300 working in the USB2.0 or USB3.0 state respectively. It can be seen that the two functions of the computer machine 200 can be tested by using one USB3. And trouble in operation, saving man-hours.

It should be pointed out that the present invention is not limited to the above-mentioned embodiments, and any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments by any skilled person based on the technical solutions of the present invention fall within the protection scope of the present invention.

Claims (3)

1. USB2.0, USB3.0 switch, it is characterised in that comprising:

USB male joint, is connected with the USB interface on computer board, and described USB male joint has power pins group and the first signal pins group of optional use, secondary signal pin set；

USB female, it is connected with the USB interface of USB3.0 equipment, described USB female has power pins group and the first signal pins group of optional use, secondary signal pin set, and the power pins group of described USB female is docked with the power pins group of described USB male joint；

Switching circuit, it has slide block, described skid, select each pin by the first signal pins group of described USB male joint with the first signal pins group of described USB female to connect one to one, or each pin of the secondary signal pin set of described USB male joint Yu the secondary signal pin set of described USB female is connected one to one。

2. USB2.0, USB3.0 switch as claimed in claim 1, it is characterised in that described first signal pins group includes two pins of USB2.0, respectively receives, sends pin。

3. USB2.0, USB3.0 switch as claimed in claim 1, it is characterised in that described secondary signal pin set includes two pairs of pins of USB3.0, and every pair of pin includes two pins, respectively receives, sends pin。