Serial port multi-split structure and control method

Abstract

The invention discloses a serial port multi-split structure and a control method. The serial port multi-split structure comprises a serial port connector, a control box, a heat absorption box and a circuit substrate, inserting grooves are formed in one side of the control box at equal intervals, the bottom ends of the inserting grooves are connected with a sealing cover through damping rotating shafts, one end of the control box is connected with the serial port connector through a signal output line, and the other end of the control box is provided with the heat absorption box by a is screw. A heat absorption aluminum sheet is laid at the bottom in the control box, U-shaped limiting bases are glued to the two ends of the top of the heat absorption aluminum sheet, the circuit substrate is arranged between the U-shaped limiting bases, and the bottom of the circuit substrate is filled with a water absorption cotton block; and a processing chip is welded to the top of the circuit substrate, and an ESD protector is installed at one end of the processing chip through an installation hole. According to the serial port multi-split structure and the control method, signal transmission is stable, electromagnetic interference is not likely to happen, static electricity on the surface of the circuit substrate is eliminated through the ESD protector, practicability is high, and the serial port multi-split structure and the control method are suitable for wide application and popularization.

Description

technical field [0001] The invention belongs to the technical field of serial port structure, and in particular relates to a serial port one-to-many structure and a control method. Background technique [0002] The serial interface is a device that can convert the parallel data characters received from the CPU into continuous serial data streams and send them out, and at the same time convert the received serial data streams into parallel data characters for the CPU. Generally, the circuit that completes this function is called a serial interface circuit. The concept of serial port communication is very simple. The serial port sends and receives bytes by bit. The group serial port connector outputs the control signal. [0003] The existing one-to-many serial port structure and control method cannot eliminate the static electricity on the circuit board, does not have the function of moisture absorption, and the dustproof and waterproof effects of the plug slot are not obvio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a structure and control method of one serial port dragging many, to solve the problem that the existing serial port one dragging multiple structure and control method proposed in the above-mentioned background technology cannot eliminate static electricity on the circuit board, and do not have moisture absorption. Function, and the dustproof and waterproof effect of the socket is not obvious, the signal transmission is unstable, and it is easy to be interfered by electromagnetic interference, so it is not suitable for widespread use.

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