Gas discharge tube automatized ageing device

Abstract

The invention relates to an automated aging device of a gas discharge tube, which comprises a console rack, and a table board and a gantry framework which are arranged on the console rack, a track is arranged on the table board, a synchronous wheel connected with a motor is arranged on the track, a test plate is fixedly arranged on the synchronous wheel, the gas discharge tube is arranged on the test plate, a pneumatic cylinder is arranged on the gantry framework, an electrode connected with an aging power supply of the gas discharge tube is fixedly arranged on the pneumatic cylinder, an insulating support rod is further arranged on the table board, a mounting plate is fixed on the insulating support rod, and an electromagnetic valve used for controlling the pneumatic cylinder is arranged on the mounting plate. The automated aging device adopts an alternating current aging method which is triggered by pulse for carrying out the aging of the gas discharge tube, thereby realizing the automation of the aging device of the gas discharge tube; the automatic judgment is carried out by detecting whether the aging of the gas discharge tube is qualified or not through a computer control unit, and the automatic removal of products with the unqualified aging is carried out through a programmable controller and a drive executing mechanism, thereby greatly improving the stability of the electrical performance of the gas discharge tube.

Description

technical field [0001] The invention belongs to a gas discharge tube electrical performance test device, in particular to an automatic aging device for a gas discharge tube. Background technique [0002] Gas discharge tubes are mainly used in cable television, railway communication, post and telecommunications equipment to prevent equipment from being damaged by overvoltage shocks and lightning strikes. It is the most widely used switching device in lightning protection equipment. Whether it is lightning protection of AC or DC power supply or lightning protection of various signal circuits, it can be used to discharge lightning current into the ground. [0003] The aging of the gas discharge tube is an important link in the production process of the gas discharge tube, which determines the stability of the electrical parameters of the gas discharge tube. Aging is the process of making the gas discharge tube undergo multiple electrical breakdowns to enhance its performance a...

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Problems solved by technology

[0004]However, the above method has serious defects: (1) The DC aging and AC aging equipment are bulky, the aging efficiency is low, and the operability is poor; (2) The DC aging Refined gas discharge tube, its positive and negative breakdown voltage deviation is very large, which makes the dispersion of gas discharge tube breakdown voltage large; after AC aging, the stability of gas discharge tube breakdown voltage after standing for a period of time, Stability changes, the dispersion of the breakdown voltage of the gas discharge tube is large, especially the dispersion after the impact is obtained or exceeds 25%; (3) The stable breakdown voltage value that can be achieved at the end of the impact aging and the power frequency aging The values ​​that can be achieved are comparable, but generally hundreds of discharges are required to obtain a stable breakdown voltage value, and there are also aging failures in impact aging

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