Soft starter utilizing electricity induction cooling and electric arc-protection bypass switch

Abstract

The invention discloses a soft starter utilizing an electricity induction cooling and electric arc-protection bypass switch. The soft starter structurally comprises a mounting plate, a shell, a supporting base, an electric arc-protection device, a control panel, an adjusting button, a display screen, a wiring terminal and a ventilation opening; the outer side of the mounting plate is provided withthe shell and is connected with the shell in a bonding mode; and the supporting seat is embedded in the bottom of the shell. Electric arc is attracted through a metal gate to stay on the surface andthe chamfer of the metal gate, and then is dispersed through a cavity, so that the collision of electric arc electrons is reduced, and the electric arc forming rate is reduced; then heat on the metalgate is transferred to the interior of a cooling liquid cavity through a heat conduction layer; a memory metal strip and a rubber strip are deformed as the local temperatures of cooling liquid are different; and a movable ball and side wings are pushed to move for promoting the circulation of the cooling liquid, accelerating the diffusion of the heat and reducing the temperature of the metal gate,so that the temperature in a vacuum cover is reduced, and flashover and a leakage current are prevented from being generated by dust on the surface of the vacuum cover due to excessively high temperature.

Description

technical field [0001] The invention relates to the field of soft starter switches, more precisely, it relates to a soft starter which utilizes energization to cool down and prevent arcing and protect bypass switches. Background technique [0002] The belt conveyor plays an important role in coal mine transportation, and whether the belt conveyor starts and runs stably is related to the efficiency of the transportation situation. Considering the transportation power, the high-voltage motor is adjusted with a soft starter, and the bypass switch is mostly through The arc extinguishing protection of the vacuum cover, the existing traditional technology is not comprehensive, and has the following disadvantages: [0003] When the transport power of the belt conveyor is too large, the vacuum cover cannot continue to ensure that it does not generate arcs. Although the generated arc can quickly disappear under the action of the vacuum cover, the high temperature caused by the arc ca...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a soft starter that utilizes electric cooling to protect the bypass switch against arcing, so as to solve the problem in the prior art that the vacuum cover cannot continue to guarantee its No arc is generated. Although the generated arc can disappear quickly under the action of the vacuum cover, the high temperature caused by the arc cannot be cooled quickly, which makes the surface temperature of the vacuum cover rise sharply. At the same time, because the coal mine production environment contains a lot of dust and the temperature and humidity High, easy to adsorb on the surface of the vacuum cover to cause flashover or leakage current, and even cause gas explosion defects

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