Non-coupled electric stepless gear motor body topological structure

Abstract

A couple-free electric steepless gear motor body topological structure relates to the structural design technology of the couple-free electric steepless gear, wherein the steepless gear includes an outer layer part (1), a middle part (2), an inner layer part (3) divided by the topological structure; and the steepless gear is divided into a stator, an external rotor and an internal rotor by the motor, wherein the stator, the external rotor and the internal rotor can be selected arbitrarily from the three parts. In order to eliminate the magnetic field between the outer layer part (1) and the inner layer part (3), a non-soft magnetic underlayer (2.2) is added in the middle part (2), to cause no magnetic field couple of the outer layer part (1) and the inner layer part (3). The motor structure of the integral motor adopts the axial type or the radial type, or the mixed type. The winding can adopt the distribution winding, also can adopt the concentrated winding.

Description

technical field [0001] The invention relates to a structural design technology of a non-coupling electric stepless transmission, and relates to the technical field of motor design. Background technique [0002] In recent years, with the development of science and technology, there are more and more occasions requiring smooth speed regulation, such as hybrid vehicles, wind power generation, variable gearboxes, starter generators, etc., and the requirements for continuously variable transmissions are also increasing. This makes the structure and control technology of the electric continuously variable transmission continuously developed and improved. However, looking at home and abroad, the research on electric continuously variable transmission is still in the initial stage of laboratory research. It is of great theoretical significance and application value to vigorously research and promote the application of electric continuously variable transmission. In recent years, a ...

AI Technical Summary

Problems solved by technology

However, this type of motor will cause a series of problems during the design and operation process, which are mainly reflected in the following three points: 1. The magnetic fields of the stator, outer rotor and inner rotor are coupled with each other. During the load operation, the magnetic fields affect each other, making The back electromotive force of the load is distorted and the torque ripple increases, which is extremely unfavorable to the application; 2. Due to the mutual coupling of various parts, complex control algorithms and advanced controllers must be used to achieve effective control, which undoubtedly increases the complexity of the system , which limits the application and development of the electric continuously variable transmission; 3. The magnetic field coupling between the stator and the inner rotor not only has no beneficial effect on the output torque, but produces harmonics, which increases the harmonic loss and stray loss, making the efficiency of the electric transmission decline

Limits the application of electrical transmissions in aerospace, aviation, navigation, electric vehicles and other fields that have strict requirements on motor efficiency and volume

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