Multifunctional lightning protection module

Abstract

Disclosed is a multi-functional lightening protection module. A lightening protection circuit is included on an inner bracket of a cavity formed by a outer shell and a bottom plate. A group of inserting flake which is internally connected with the lightening protection circuit and externally connected with a base is arranged on the bottom plate. A trip protection device is also arranged. The lightening protection circuit realizes circuit longitudinal and horizontal complete protection in one module by connecting a varistor and a discharge tube in series between a signal line and a ground line, or between a pair of signal lines. The trip protection device is arranged at each varistor side on the bracket; one end of the trip connecting piece is electrically connected with the inserting flake, and the middle part of the trip connecting piece is welded with the electrode piece of the varistor through a trip pole which has the over current protection function; one side of the two sides of the other end of the trip connecting piece presses a pressure spring arranged in a slide way at the top of the bracket, and the other side corresponds to a sliding display module whose other end is fixed on the bracket through a small pressure spring. The lightening protection module of the invention has the functions of overheat protection, over current protection, deterioration indication and alarm function; the invention works reliably and has convenient usage and long service life, and is suitable for multiple field lightening protection.

Description

technical field [0001] The invention relates to a lightning protection module, in particular to a multifunctional lightning protection module for railway signal multi-line vertical and horizontal full protection, longitudinal protection and horizontal protection. It is combined with a special lightning protection base to realize lightning protection for railway signal and other systems. Background technique [0002] At present, there is only one varistor (MOV) or a varistor connected in series with a discharge tube in a commonly used lightning protection module. In order to protect a pair of signal lines vertically and horizontally in this form, three modules must be used to realize (such as Figure 6 As shown), this will take up a lot of space, making installation more difficult, and sometimes even impossible to install. At the same time, the wiring of the lightning arrester will be longer, which will increase the limit voltage and reduce the protection effect. Due to the ...

AI Technical Summary

Problems solved by technology

In order to protect a pair of signal lines vertically and horizontally in this form, three modules must be used to realize (such as Image 6 As shown), this will take up a lot of space, increase the difficulty of installation, and sometimes even fail to install, and the wiring of the lightning arrester will be longer, which will lead to an increase in the limit voltage and reduce the protection effect

Due to the use of three independent modules, their consistency cannot be guaranteed. When the overvoltage invades, the start-up time of the three modules will vary greatly, which will make it difficult to achieve the expected protection effect.

Images