High-voltage resistant bidirectional rotary high-speed switch electromagnet

Abstract

The invention discloses a high-voltage resistant bidirectional rotary high-speed switch electromagnet. The high-speed switch electromagnet comprises a front end cover, a rear end cover, a stator component and a rotor component, wherein the rotor component comprises a rotor and a rotor shaft; the rotor is arranged on the rotor shaft of which the two ends are rotatablely arranged on the front end cover and the rear end cover respectively; the stator component comprises a first yoke, a second yoke, a third yoke, a magnetic-insulation ring, a coil and a permanent magnet; the first yoke is in a solid circular ring shape; the second yoke and the third yoke are semi-open; the first yoke, the second yoke and the third yoke are arranged on the outer circle of the rotor; openings of the second yoke and the third yoke are opposite to each other and form a cavity; the magnetic-insulation ring is positioned in the cavity; the coil is encircled on the magnetic-insulation ring to form a current excitation source; and the permanent magnet is positioned between the first yoke and the second yoke and is axially magnetized to form an N pole and an S pole. The high-speed switch electromagnet can be driven bi-directionally, has good high high-voltage resistance, adapts to working in a wet state and has a high dynamic response.

Description

technical field [0001] The invention belongs to an electric-mechanical conversion mechanism for an electric (pneumatic)-hydraulic digital reversing valve in the field of fluid transmission and control, in particular to a high-voltage-resistant bidirectional rotating high-speed switching electromagnet. Background technique [0002] Electric-mechanical converters for valves can be divided into dry type and wet type according to whether there is oil in the working chamber of the armature. Therefore, it has the advantages of good heat dissipation, small friction, low impact noise when reversing and resetting, stable operation and long life, so it is widely used. [0003] 2D digital reversing valve is based on the principle of hydraulic servo screw, which converts the rotary motion of the valve core into linear motion, so as to realize the axial opening and closing of the valve port, so as to correspond to the two working states of the reversing valve: fully open and fully closed...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the traditional rotary switch electromagnet that can only be driven in one direction, has no sealed high-voltage resistant structure, cannot work in a wet state, and has low dynamic response, the present invention provides a two-way driven electromagnet with good high-voltage resistance Features, suitable for working in wet state, high dynamic response, high pressure resistant bi-directional rotary high-speed switch solenoid, which can be directly used to drive the spool of 2D digital reversing valve

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