Rotor magnetic ring of high-efficiency micro-motor and preparation method thereof

Abstract

The invention discloses a high-efficiency micromotor rotor magnetic ring, which is composed of ferrite magnetic powder, poly 1,9-nonylidene terephthalamide, polylaurolactam, nylon 6 / clay nanocomposite material, oleic acid Injection molding is obtained. The rotor magnetic ring of the high-efficiency micro-motor provided by the present invention obtains the best component raw materials and their optimal dosage ratio through a large number of experimental screening studies, and adopts the method provided by the present invention to prepare the rotor magnetic ring of the motor, which can not only reduce the The quality of the motor rotor, while reducing the weight of the whole machine, improves the efficiency of the motor, the motor has lower noise, higher operating frequency, and larger pull-out torque, which has made a major breakthrough in the quality of the motor and achieved significant technological progress.

Description

Technical field [0001] The invention relates to a high-efficiency micro-motor, in particular to a new material motor rotor magnetic ring and a preparation method thereof. Background technique [0002] With the environmental requirements of energy saving and environmental protection and the development of high technology, the whole machine products of micromotors are developing in the direction of "lightweight, high efficiency, low noise and low cost". This puts forward higher requirements for the design and manufacture of micromotors. The design and manufacture of the rotor, the core component of the micromotor, is particularly important. At present, the rotor is mainly manufactured by injection molding, which can form various products with complex shapes at one time. Products with dimensional accuracy that meet the basic requirements can be obtained without post-processing. Products with complex shapes can be prepared and continuous mass production can be automated. Meet the g...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the purpose of the present invention is to overcome the deficiencies of the prior art. Aiming at the prior art, when adding lubricant, it is necessary to add a heat stabilizer, which reduces the content of magnetic powder, causing a decline in magnetic properties, unstable molding, and short life. Insufficiency; provide a formula using internal and external lubricants instead of heat stabilizers, which can not only reduce the injection molding temperature, increase the number of times and utilization of the material, reduce the decomposition and oxidation of nylon, but also improve the fluidity and improve the magnetic powder The usage content and the distribution uniformity of the magnetic powder ensure the smooth movement of the motor, improve the performance of the pellets, reduce the density of the material, and make the rotor lightweight, stable in molding, and high in manufacturing accuracy.