Bistable locomotive-mounted electromagnetic relay

Abstract

The invention provides a bistable locomotive vehicle-mounted electromagnetic relay and belongs to the technical field of relays. A magnetism isolating gasket is fixedly arranged at the bottom of an armature, the lower portion of the middle of the assembled armature and magnetism isolating gasket is connected with a permanent magnet, the lower portion of the permanent magnet of a permanent magnet frame is connected with a magnetic conductive block, and the bottom of the magnetic conductive block is connected with a yoke; and an iron core, a coil rack and a coil assembly are respectively arranged between the left side and the right side of the armature and the magnetism isolating gasket after the armature and the magnetism isolating gasket are assembled and the yoke below the armature and the magnetism isolating gasket. The permanent magnet structure is added in the magnetic circuit, the permanent magnet magnetic circuit provides retention force when the relay is not powered on, after the armature starts to rotate, due to the change of an air gap, the permanent magnet attraction force on one side can be rapidly reduced, the permanent magnet attraction force on the other side can be increased, the coil power can be reduced, and the attraction speed can be increased.

Description

technical field [0001] The invention belongs to the technical field of relays, and in particular relates to a bistable on-board electromagnetic relay for locomotives. Background technique [0002] At present, most of the on-board relays used in railways are monostable relays, which have many parts and complex structures, resulting in inconsistent performance of the relays. At the same time, the holding force of the monostable relays is low in the non-working state, and the relays have poor environmental resistance. , the holding force is mostly provided by the reaction force spring or shrapnel, which causes the armature to rebound more seriously during the release process of the relay, which is extremely unfavorable to the relay itself and the external load circuit. Contents of the invention [0003] Based on the above technical problems, the present invention provides a novel bistable locomotive on-board relay electromagnetic structure, adding a permanent magnet structure...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the on-board relays used in railways are monostable relays, which have many parts and complex structures, resulting in inconsistent performance of the relays. At the same time, the holding force of the monostable relays is low in the non-working state, and the relays have poor environmental resistance. , the holding force is mostly provided by the reaction force spring or shrapnel, which causes the armature to bounce back more seriously during the release process of the relay, which is extremely unfavorable to the relay itself and the external load circuit

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