Rare-earth permanent-magnet magnetic levitation motor

Abstract

The invention discloses a rare-earth permanent-magnet magnetic levitation motor. A stator and a rotor are uniformly divided into 12 subdivisions along a radial direction. Structures of the subdivisions are the same. In each subdivision, a long strip stator permanent magnet which is deflected towards a right side for 45 degree is radially fixed to the stator; a magnetic pole of a stator permanent magnet magnetizing direction faces towards the rotor and other three surfaces are wrapped in the stator; a long strip rotor permanent magnet which is radially deflected towards the right side for 45 degree is fixed to the rotor, a magnetic pole of a rotor permanent magnet magnetizing direction faces towards the stator, and other three surfaces are wrapped in the rotor; opposite magnetic polarities of the stator permanent magnet and the rotor permanent magnet are the same; one non-iron-core driving coil is fixed between the two adjacent stator permanent magnets; the stator wrapping the stator permanent magnet and the rotor wrapping the rotor permanent magnet adopt a macromolecule antimagnetic material. In the invention, a rare-earth permanent magnet design is adopted so that a frictional force of the motor is small and transmission efficiency is high.

Description

technical field [0001] The invention relates to the field of motors, in particular to a rare-earth permanent magnet magnetic levitation motor. Background technique [0002] An electric motor is a rotary electric machine that converts electrical energy into mechanical energy. It mainly includes an electromagnet winding or distributed stator winding for generating a magnetic field and a rotating armature or rotor. Under the action of the rotating magnetic field of the stator winding, a current passes through the armature squirrel-cage aluminum frame and is subjected to the action of the magnetic field to make it rotate. [0003] Some types of these machines can be used as electric motors as well as generators. It is a machine that converts electrical energy into mechanical energy. Usually, the active part of the motor makes a rotary motion, which is called a rotor motor; there are also linear motions, called a linear motor. Electric motors can provide a wide range of power,...

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Problems solved by technology

At the same time, there is also a DC brushless motor, which is a type of synchronous motor. Compared with brushed motors, brushless motors are less power-saving and quieter because of the lack of friction between the carbon brush and the shaft, but the price is higher, and additional brushless motors are required. brush controller

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