A High Performance Limited Rotation Actuator
An actuator, high-performance technology, applied in the direction of electric components, electromechanical devices, electrical components, etc., can solve the problems that the acceleration and size cannot meet the performance requirements, the design efficiency of the actuator is low, and the efficiency of the actuator is low. Improved magnetic field utilization efficiency, light weight, and improved fill rate effects
Active Publication Date: 2022-04-22
北京瑞控信科技股份有限公司
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Problems solved by technology
This results in acceleration and size that cannot meet performance requirements.
At the same time, current actuator designs are generally inefficient
Therefore, the existing mirror actuator is inefficient and heavy, and cannot drive the fast mirror to move at a higher acceleration
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[0033] 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.
[0034] 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.
[0035] combine figure 1 , a high-performance limited-rotation actuator, including a rotary shaft support assembly 4, n coils 7, two sets of permanent magnet assemblies 5 an...
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A high-performance limited-rotation actuator of the present invention includes a rotary shaft support assembly, n coils are distributed along the axial direction of the rotary shaft, the middle part of each coil is fixed to the rotary shaft, and both sides extend oppositely along the same straight line; The magnet assembly is fixed to the base, and each set of permanent magnet assemblies includes n+1 layers of permanent magnets distributed axially along the axis of rotation; one side and the other side of the n coils are respectively inserted into the permanent magnets of two sets of permanent magnet assemblies, A layer of permanent magnets is arranged on the upper and lower parts of one side and the other side of each coil; a current flows through the coil, and the permanent magnet assembly generates a bias magnetic field, and the driving coil assembly drives the rotary shaft support assembly to rotate around the axis of the rotary shaft . The present invention adopts a multi-layer structure and effectively utilizes magnets to realize the characteristics of small volume and weight but large torque, so as to meet the requirement of receiving relatively large loads. Reducing the soft magnetic material makes the actuator small in size and light in weight.
Description
technical field [0001] The invention relates to the technical field of photoelectric scanning and tracking, in particular to a high-performance 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. Due to It has the advantages of compact structure, fast response speed, high working bandwidth, and high pointing accuracy. It is widely used in astronomical telescopes, adaptive optics, image motion compensation, free space optical communication, and precision tracking. It has become a stable beam and A key device for correcting the direction of beam propagation. [0003] An important index of the fast mirror is the operating bandwidth, and the device th...
Claims
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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