Holding mechanism of high-speed switch

Abstract

The invention discloses a holding mechanism of a high-speed switch, and the holding mechanism comprises a closing magnet yoke and an opening magnet yoke which are sequentially arranged outside a driving shaft rod from top to bottom; a magnetic conductive yoke is arranged between the opposite sides of the closing magnet yoke and the opening magnet yoke, and a tile-shaped magnet is fixedly arranged on the inner surface of the magnetic conductive yoke; the inner surface of the tile-shaped magnet is fixedly provided with a magnetic conductive ring. The invention relates to the technical field of electrical switches. According to the holding mechanism of the high-speed switch, the closing magnet yoke, the opening magnet yoke, the magnetic conductive yoke, the tile-shaped magnet and the magnetic conductive ring are assembled to form a strong magnetic loop field, and when the driving iron core moves up and down in place in the magnetic conductive ring, the strong magnetic loop field and the driving iron core form strong magnetic attraction, so that the high-speed switch can be firmly held at an opening and closing position, and the problem that when a traditional low-voltage double-mechanism double-power-supply high-speed change-over switch works, the change-over switch is fixed through suction force generated between a permanent magnet and an iron suction plate, and stability is difficult to keep is solved.

Description

technical field [0001] The invention relates to the technical field of electrical switches, in particular to a holding mechanism for high-speed switches. Background technique [0002] At present, in the field of switches in China, the two-way power switching switch currently used in the low-voltage power grid system line, from the fault collection of the main power line to the connection and operation of the backup power supply, the switching time of the switch is completed in seconds, making many electrical appliances The interruption of equipment operation or the generation of operational overvoltage and inrush current will cause loss of work interruption and damage to electrical equipment. [0003] Referring to the Chinese patent, a switch eddy current permanent magnet operating device (publication number: CN202487442U), a switch permanent magnet operating device, including coil A and coil B fixed on the upper part of the frame, and a permanent magnet fixed on the lower p...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-speed switch holding mechanism, which solves the problem of using the suction force generated between the permanent magnet and the iron suction plate to fix the existing low-voltage double-mechanism dual-power high-speed switch when it is working. , it is difficult to maintain stability during the high-speed switching of the switch

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