Combined signal type lightning protection device with remote signaling function

Abstract

The invention discloses a combined signal type lightning protection device with a remote signaling function, which comprises a rack, a group of independent signal modules, a grounding copper bar, a PCB (printed circuit board) and a remote signaling interface. The independent signal modules can be arranged in the rack through a rack port in a plugging way, the grounding copper bar is made of bronze, the PCB is connected with a remote signaling dry contact of each module, the remote signaling interface is arranged on the rack, and a sheet type PCB grounding and dry contact terminal extends from the end of each signal module in the rack; and the independent grounding copper bar fixed on the rack is fixedly connected with the PCB, the PCB is provided with a U-shaped plug pin corresponding to the grounding terminal of each signal module, and the grounding terminals of the signal modules are clamped into the corresponding plug pins when the signal modules are inserted into the rack. By adopting the scheme, the signal modules can be freely combined and replaced in a plugging way, and the lightning protection module has a simple structure, can be connected reliably and conveniently, and can be prevented from being broken as a result of plugging multiple times.

Description

technical field [0001] The invention relates to a surge overvoltage protection device applied to electronic signal line equipment. Background technique [0002] The combined signal lightning protector with remote signaling function is mainly used in the surge overvoltage protection of electronic signal line equipment, and can be applied to: the protection of serial port lines of electronic equipment in RS232 and RS485 systems; the protection of network switches and Ethernet lines in computer rooms ; Protection of switchboard lines in telephone equipment rooms; safety precautions, protection of host computer lines in intelligent building equipment rooms; protection of industrial automatic control and fire protection equipment room control lines; protection of video and monitoring signal lines. [0003] At present, the rack structure mainly has the following types: 1. Front-in and back-out structure, integrated rack interface; 2. Top-in and bottom-out form, multi-chip interfac...

AI Technical Summary

Problems solved by technology

Disadvantages: relatively backward, inconvenient wiring for customers, inconvenient maintenance

Advantages: Several groups of signal interfaces share one PCB, which is beautiful and neat, and convenient for wiring; Disadvantages: There is no plug-in replacement function, and the rack needs to be disassembled for replacement, which is inconvenient for replacement and maintenance, and it is wasteful to replace the whole piece if it is damaged all the way

3. Top-in and bottom-out form, independent form for each channel; advantages: easy installation and wiring; disadvantages: no plug-in replacement function, need to disassemble the rack for replacement, inconvenient replacement and maintenance

Disadvantages: maintenance is inconvenient, and the rack needs to be disassembled for replacement

5. The single-chip interface adopts guide rail installation and is combined into a 19” rack form; advantages: easy replacement and maintenance; disadvantages: the overall appearance is not beautiful, it looks very messy, and the grade is not high

Disadvantages: The volume is relatively large, the height is 1.5u, which is relatively high; the PCB is fixedly installed inside the plastic material, and the insulation is good, but the manufacturing cost is relatively high; it is easy to plug and replace, but the connector and the protection circuit are divided into two parts , plug connection, signal transmission rate is limited

The internal structure design is unreasonable, and the signal grounding point is unreliable; the design of the anti-reverse insertion method is too complicated, which increases the cost and the convenience of assembly

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