Single-layer magnetic pole electromagnetic actuator with double windings

Abstract

The invention provides a single-layer magnetic pole electromagnetic actuator with double windings, and belongs to the field of aerospace. The problem that an existing electromagnetic actuator is small in thrust is solved. The actuator comprises a stator and a rotor; the stator comprises a stator frame, an outer magnetic structure and an inner magnetic structure; the outer magnetic structure comprises an outer magnetic yoke, an outer magnetic ring, an outer rear magnetic ring, an outer front magnetic ring, a commutation magnetic conduction ring, an outer paramagnetic yoke and an outer front magnetic yoke, and the rotor is arranged in the stator. And low-cost and high-efficiency in-orbit release of the nano-satellite can be a double-air-gap double-winding structure is adopted, the current direction of the inner winding is opposite to the current direction of the outer winding, armature reaction is restrained, and the energy conversion rate is improved. The actuator is mainly used for electromagnetic actuators.

Description

technical field [0001] The invention belongs to the field of aerospace, in particular to a single-layer magnetic pole electromagnetic actuator with double windings. Background technique [0002] It has become a research hotspot in today's international aerospace field that multiple satellites work together to complete complex space exploration tasks, such as formations and clusters. In particular, nano-satellites have the advantages of short development cycle and low cost. The clusters formed by them have high flexibility and good robustness, and can complete tasks that large satellites cannot independently complete or require high costs. [0003] In order to save costs, a deployer is often used to store and release a large number of nano-satellites in a predetermined orbit during a rocket launch mission. Nano-satellites have weak orbit control capabilities and limited fuel. Therefore, it is expected that when these nano-satellites are ejected and separated, the separation ...

AI Technical Summary

Problems solved by technology

However, in the current traditional electromagnetic actuator, the electromagnetic field generated by the coil weakens the original permanent magnetic field generated by the magnetic ring, and the armature reaction is obvious, resulting in low energy conversion rate and small thrust of the electromagnetic actuator.

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