Integrated self interlocking mechanism with brake breaking function

Abstract

The invention discloses an integrated self interlocking mechanism with a brake breaking function. The integrated self interlocking mechanism comprises a pedestal, a pull rod, a brake breaking spring,a magnetic shell, a tripping coil, a lock tongue, a reset spring and a yoke, a longitudinal hole penetrating the pedestal is formed in the pedestal, and the middle part of the pull rod movably penetrates the longitudinal hole; a limit block is fixed on one end, extending out the pedestal, of the pull rod, and the brake breaking spring sheathes the other end, extending out the pedestal, of the pullrod; the magnetic shell is fixed on one side surface of the pedestal; one end of the tripping coil is arranged at the bottom of the magnetic shell, the other end of the tripping coil clings one sidesurface of the yoke, and the other side surface of the yoke is fixed on the pedestal; a lock hole communicated with the longitudinal hole is formed in the yoke and the pedestal corresponding to the center of the tripping coil, one end of the lock tongue is placed at the center of the tripping coil, the other end of the lock tongue is placed in the lock hole, and the reset spring is located betweenthe lock tongue and the bottom of the magnetic shell; and an interlocking slot is formed in the periphery of the pull rod. The integrated self interlocking mechanism disclosed by the invention integrates three functions, namely a brake closing self interlocking function, a brake breaking driving function and a stroke adjusting function, into a whole, so that not only parts are reduced but also structure is simple and compact.

Description

technical field [0001] The invention belongs to the technical field of vacuum contactors, and in particular relates to an integrated self-locking mechanism with an opening function. Background technique [0002] At present, the control methods used by vacuum contactors mainly include electromagnetic holding and mechanical self-locking holding. Usually, the mechanical self-locking device and the electromagnet mechanism are separated and independent. The self-locking mechanism of the vacuum contactor with self-locking function in the existing market is relatively large, without stroke adjustment and opening and reset functions. These functions are completed by the electromagnet mechanism. As a result, the overall number of parts of the vacuum contactor is large, the cost is high, the layout mechanics is unbalanced, and the space is small, which is not conducive to assembly production and operation and maintenance. However, the opening and tripping coil cannot be energized for...

AI Technical Summary

Problems solved by technology

Usually, the mechanical self-locking device and the electromagnet mechanism are separated and independent. The self-locking mechanism of the vacuum contactor with self-locking function in the existing market is relatively large, without stroke adjustment and opening and reset functions. These functions are completed by the electromagnet mechanism. As a result, the overall number of parts of the vacuum contactor is large, the cost is high, the layout mechanics is unbalanced, and the space is small, which is not conducive to assembly production and operation and maintenance

However, the opening and tripping coil cannot be energized for a long time, and it will often burn out and fail when the mechanism fails, and even cause electrical fires, bringing greater losses to users.

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