Package structure of oblique pole permanent magnet motor

Abstract

A packaging structure of a skewing permanent magnet motor comprises a rotary shaft mechanism and a rotor mechanism movably arranged on the rotary shaft mechanism, wherein the rotor mechanism is composed of at least two rotor sections which are movably connected in sequence, magnetic steel is fixed to the external circle of each rotor section, and the magnetic steel of adjacent rotor sections is arranged in the axis direction in a biased mode. The packaging structure of the skewing permanent magnet motor enables rotors to form skewing and the magnetic steel to be firm, has the characteristics of a surface-mount type magnetic steel structure, and is small in leakage flux of the magnetic steel and high in utilization rate of the magnetic steel. Meanwhile, after an iron core is pressed, the magnetic steel is assembled, the phenomenon of vibration demagnetization of the magnetic steel does not happen, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to a device in the technical field of permanent magnet motors, in particular to a package structure of a skewed pole permanent magnet motor. Background technique [0002] The magnetic steel surface-mounted permanent magnet motor has the characteristics of high speed regulation performance, small magnetic flux leakage and high magnetic flux utilization rate. Because the magnetic steel is pasted on the outer circle of the rotor core, in practical applications, the adhesive may fail under the action of long-term start-stop and loading, causing the magnetic steel to fall off. In order to prevent the magnetic steel from falling off, at present, a non-magnetic metal sheath is mainly installed on the outside of the magnetic steel, or it is tied with a weft-free tape. This will inevitably cause the air gap between the stator and the rotor to increase, increase the amount of magnetic steel materials, and cause a waste of resources. [00...

AI Technical Summary

Problems solved by technology

However, this technology is mainly aimed at the rotor built-in magnetic steel scheme, and the built-in magnetic steel structure has a large magnetic flux leakage, but this technology does not provide specific magnetic isolation measures, which is not suitable for practical applications; secondly, this technology must be installed in each section of iron Put the magnet in the heart, and then press it. This process will easily cause the magnet to vibrate and demagnetize and may cause the magnet to break, which has certain safety hazards.

Images