One-dimensional heavy-load moving-coil limited rotation actuator

A large-load, moving-coil technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems that the acceleration and size cannot meet the performance requirements, the design efficiency of the brake is low, and the efficiency of the actuator is low, so as to save the quantity And volume, high acceleration, the effect of optimized structural design

Active Publication Date: 2021-09-21
北京瑞控信科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in acceleration and size that cannot meet performance requirements.
At the same time, the current brake design efficiency is relatively low
In short, the actuators of the existing large-diameter reflectors are inefficient and heavy, and cannot drive the fast reflector to move at a higher acceleration

Method used

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  • One-dimensional heavy-load moving-coil limited rotation actuator
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  • One-dimensional heavy-load moving-coil limited rotation actuator

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0033] Some embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] figure 1 It is a schematic diagram of the explosive structure of a one-dimensional large-load dynamic limited-rotation actuator disclosed in the present invention, ...

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Abstract

The invention relates to a one-dimensional high-speed heavy-load moving-coil limited rotation actuator. A rotating shaft supporting assembly comprises a rotating shaft capable of rotating around the axis of the rotating shaft supporting assembly; the coil assembly is fixed to the rotating shaft. Each coil assembly comprises n coils distributed in the circumferential direction of the rotating shaft. The permanent magnet assemblies are fixed to the shell, and each permanent magnet assembly comprises n+1 layers of permanent magnets distributed in the axial direction of the rotating shaft. Each group of permanent magnet assembly is correspondingly inserted into one group of coil assembly, so that the upper part and the lower part of each coil are respectively provided with a layer of permanent magnet; when current flows through the coil, the permanent magnet assembly generates a bias magnetic field, and the coil assembly is driven to drive the rotating shaft supporting assembly to rotate around the axis of the rotating shaft. According to the actuator, the torque output of the motor is improved while the weight of the rotor of the motor is reduced, so that a larger load can be borne, the working efficiency of the motor is greatly improved, and a fast steering mirror system can achieve higher rotation acceleration and working bandwidth.

Description

technical field [0001] The invention relates to the technical field of photoelectric scanning and tracking, in particular to a one-dimensional large-load moving-coil limited-rotation actuator. Background technique [0002] The fast reflector is a component that works between the light source or receiver and the target to adjust and stabilize the visual axis of the optical system or the beam pointing. By using a voice coil motor to precisely control the deflection direction of the reflector, the beam deflection angle can be precisely controlled. It is used to realize the rapid adjustment of the "deflection-tilt" azimuth angle of the mirror, and can be used in applications such as line-of-sight stabilization or scan compensation in the optoelectronic field. Due to its advantages of compact structure, fast response, high working bandwidth and high pointing accuracy, it is widely used in astronomical telescopes, adaptive optics, image motion compensation, free space optical comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/035
CPCH02K41/0358
Inventor 肖立亮孔凡辉
Owner 北京瑞控信科技股份有限公司
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