A USB switching device capable of automatically switching data channels and a display

Abstract

The invention provides a USB switching device capable of automatically switching data channels and a display. The USB switching device comprises a connecting end and a switching end which can be magnetically attracted and fixed with the connecting end and is adaptively connected with the interface; The output side of the connecting end is provided with a first power pin, a first identification pin, a second identification pin, a first data pin and a second data pin. The input side of the switching end is correspondingly provided with a second power pin, a third identification pin, a fourth identification pin, a third data pin and a fourth data pin; When the output side of the connecting end is magnetically attracted and fixed to the input side of the switching end, the first power pin is electrically connected with the second power pin, and output signals of the output side of the switching end are in one-to-one correspondence with input signals of the input side of the connecting end;And a switching circuit is arranged in the switching end and is used for switching and outputting data signals from the third data pin and the fourth data pin according to the control signals from the third identification pin and the fourth identification pin.

Description

technical field [0001] The invention relates to the field of data connectors, in particular to a USB switching device capable of automatically switching data channels and a display using the USB switching device. Background technique [0002] In work and life, you may accidentally pull the USB data cable, which will cause the USB connection port to fail, especially the snake in the USB cable is the easiest to break. For this reason, there are charging cables with magnetic suction USB connectors on the market. The advantage of this application is that the user can use the magnetic USB connector to easily connect the cable to the electronic device (such as a mobile phone, a laptop, etc.). to cause damage. [0003] The earlier magnetic connection was mainly designed for charging needs. Recently, some manufacturers have introduced a magnetic data and charging connection. For example, as long as the mobile phone is connected to other electronic devices through the connector, i...

AI Technical Summary

Problems solved by technology

Take the USB2.0 data line as an example, it generally includes pins such as power supply VCC, data positive line DATA+, data negative line DATA-, and bottom line GND. When connecting the USB connector, the pins of the male and female connectors should be connected one by one. If the interface is reversely connected, the corresponding pins will not correspond. If the DATA+ pin of the male connector contacts the DATA- pin of the female interface, the circuit will not be connected normally.

[0004]Single-sided plugging will bring a lot of inconvenience to users, and greatly reduce the user experience of magnetic USB charging data connectors

Although there are also designs that can realize data transmission when double-sided connections are connected, it is often necessary to use an additional MCU (micro control unit) for control, and the circuit is complicated and the cost is high.

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