Automatic changeover switch with short arcing time

Abstract

The invention relates to an automatic changeover switch with short arcing time, which comprises a cover, a torsion spring, a suspension arm assembly and a slider. Two round holes are arranged on the upper side and the lower side of the cover, the suspension arm assembly is formed by riveting a rotating shaft, a rivet and a suspension arm and can freely rotate on a plane perpendicular to the rivet along the axis of the rivet, a large rotating shaft is arranged at one end of the rotating shaft, a small rotating shaft is arranged at the other end of the rotating shaft, the slider is formed by riveting a shaft and a flat U-shaped slider plate, the shaft is fixedly connected to the bottom surface of the slider, the large rotating shaft of the suspension arm assembly is sleeved in the large hole of the cover, one torsion arm of the torsion spring is sleeved in the small hole of the cover, another torsion arm of the torsion spring is sleeved in an axial hole of the small rotating shaft, the small rotating shaft is arranged on the inner side of the U-shaped bottom surface of the slider, and distances from the shaft on the U-shaped bottom surface of the slider plate to two side walls of the slider plate are unequal. The distances from the shaft on the outer side of the bottom surface of the slider plate to the two U-shaped side walls of the slider plate are unequal, and an outer circumferential surface of the small rotating shaft is exactly tangential with the inner side of one side wall of the slider at the moment that the torsion spring is maximum in energy storage, so that a contact system is quickly broken, the arcing time is shortened, and breaking indexes are increased.

Description

technical field [0001] The invention belongs to an automatic transfer switch, in particular to an automatic transfer switch with short arcing time. Background technique [0002] The currently known TQ50 automatic transfer switch has a slow breaking speed and a long arcing time, resulting in a low breaking index of the product. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides an automatic transfer switch with fast breaking speed and short arcing time. [0004] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: it includes a cover, a torsion spring, a cantilever assembly, and a slide block with an automatic transfer switch and an executive switch. The round holes are respectively on the upper and lower sides of the cover, and the center of the hole is on a line perpendicular to the upper and lower sides of the cover; th...

AI Technical Summary

Problems solved by technology

[0002] The current known TQ50 automatic transfer switch has a slow breaking speed and a long arcing time, resulting in a low breaking index of the product

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