Outer-rotor five-degree-of-freedom non-bearing switch reluctance motor

A technology of switched reluctance motors and outer rotors, which is applied to synchronous motors, synchronous machines, and electromechanical devices for single-phase currents, and can solve problems that are difficult to reflect the high speed and high power density of bearingless motors, long axial length, High critical speed and other issues, to achieve the effect of short axial length, less drive circuit and simple control

Pending Publication Date: 2018-10-12
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in order to realize the stable suspension of the rotor with five degrees of freedom, it is necessary to use axial single-degree-of-freedom magnetic bearings, radial two-degree-of-freedom magnetic bearings and two-degree-of-freedom bearingless switched relucta

Method used

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  • Outer-rotor five-degree-of-freedom non-bearing switch reluctance motor
  • Outer-rotor five-degree-of-freedom non-bearing switch reluctance motor
  • Outer-rotor five-degree-of-freedom non-bearing switch reluctance motor

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Embodiment Construction

[0024] like Figure 1~3 A five-degree-of-freedom bearingless switched reluctance motor with an outer rotor includes a common inner stator and a common outer rotor. The common inner stator consists of a left stator core 4 serially connected in series on an absolute magnetic shaft 6, an axially magnetized The permanent magnet ring 5 and the right stator core 7 are composed of a left magnetic bridge 10 and a right magnetic bridge 11 respectively coaxially connected to the opposite surfaces of the left stator core 4 and the right stator core 7. The ends of the left magnetic bridge 10 and the right magnetic bridge 11 are respectively connected to two ends of the permanent magnetic ring 5 . The left stator core 4 and the right stator core 7 are respectively provided with four suspension teeth 17 in the x direction and y direction of the edge, and several torque teeth are connected between two adjacent suspension teeth 17 through a magnetic isolation block 13 14. The suspension teet...

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Abstract

The invention discloses an outer-rotor five-degree-of-freedom non-bearing switch reluctance motor. The motor comprises a shared inner stator and a shared outer rotor, the shared inner stator is composed of a left stator iron core, a permanent magnet ring and a right stator iron core which are in serial connection with a magnetic insulation shaft in sequence, four suspension teeth are arranged at the edge of the left stator iron core in the x and y directions, and four suspension teeth are arranged at the edge of the right stator iron core in the x and y directions; multiple torque teeth are further connected between every two adjacent suspension teeth through magnetic insulation blocks, and suspension windings and torque windings wind the suspension teeth and the torque teeth respectively;the shared outer rotor is composed of a left rotor iron core and a right rotor iron core which are fixedly connected to a magnetic conduction shell, the left rotor iron core and the right rotor ironcore are coaxially arranged at the radial outer sides of the left stator iron core and the right stator iron core at intervals respectively, and multiple rotor teeth are arranged on the inner circumferences of both the left rotor iron core and the right rotor iron core.

Description

technical field [0001] The invention relates to the technical field of motor manufacturing, in particular to an outer rotor five-degree-of-freedom bearingless switched reluctance motor. Background technique [0002] Bearingless motors have no friction, no wear, no lubrication and no seals, and are easy to achieve higher speed and higher power operation. They have broad application prospects in aerospace, turbomolecular pumps, flywheel energy storage, sealed pumps, high-speed electric spindles, etc. . Bearingless motors are mainly divided into three types: bearingless asynchronous (induction) motors, bearingless permanent magnet synchronous motors and bearingless switched reluctance motors. In particular, the bearingless switched reluctance motor has the advantages of simple structure, high mechanical strength, flexible control, good fault tolerance, and good robustness, and has broad application prospects in electric vehicles, general industries, and household appliances. ...

Claims

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Application Information

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IPC IPC(8): H02K19/10H02K1/17H02K3/04H02N15/00
CPCH02K1/17H02K3/04H02K19/103H02N15/00
Inventor 张涛莫丽红鲁庆丁卫红唐中一王业琴夏鑫
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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