Double sheet type five-degree-of-freedom bearing-free switched reluctance motor

A technology of switched reluctance motor and degrees of freedom, applied in magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of high speed and high power density, long axial length, and high critical speed of bearingless motors that are difficult to achieve. The effect of short axial length, less drive circuit and simple control

Active Publication Date: 2018-11-13
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, to realize the stable suspension of the rotor with five degrees of freedom, any combination of axial single-degree-of-freedom magnetic bearings, radial two-degree-of-freedom magnetic bearings, three-degree-of-freedom radial-axial magnetic bearings, and two-degree-of-freedom bearingless...

Method used

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  • Double sheet type five-degree-of-freedom bearing-free switched reluctance motor
  • Double sheet type five-degree-of-freedom bearing-free switched reluctance motor
  • Double sheet type five-degree-of-freedom bearing-free switched reluctance motor

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Embodiment Construction

[0024] Such as Figure 1~5 A double-sheet type five-degree-of-freedom bearingless switched reluctance motor shown includes a stator and a rotor, and the rotor is composed of a rotating shaft 5, a left rotor core 4 and a right rotor core 6 connected to the rotating shaft 5 side by side at intervals 12 rotor teeth 13 are evenly arranged on the sides of the left rotor core 4 and the right rotor core 6, and the radial length of the left rotor core 4 and the right rotor core 6 is larger than the axial thickness, forming a sheet shape.

[0025] The stator includes an annular left stator core 2 and a right stator core 9. Four floating teeth 11 are evenly arranged on the inner ring of each stator core, and the inner ring of the stator core between two adjacent floating teeth 11 is evenly arranged There are two torque teeth 16, the width of the suspension teeth 11 is greater than the width of the torque teeth 16, and the width of the suspension teeth 11 is greater than one pole pitch o...

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Abstract

The invention discloses a double sheet type five-degree-of-freedom bearing-free switched reluctance motor. The motor comprises a stator and a rotor, wherein the rotor consists of a rotating shaft androtor cores, rotor teeth are arranged on the edges of the rotor cores, the two rotor cores are arranged in parallel at an interval, the stator comprises two annular stator cores, four suspension teethare uniformly arranged on the inner ring of each stator core, a plurality of torque teeth are uniformly arranged on the inner ring, between two adjacent suspension teeth, of each stator core, and suspension windings and torque windings wind around the suspension teeth and the torque teeth respectively; outer rings of the two stator cores are uniformly connected with a plurality of magnetic conductive bridges, and the magnetic conductive bridges connected to the two stator cores are connected through permanent magnets in a one-to-one correspondence manner; the two rotor cores are coaxially arranged in inner cavities of the two stator cores respectively, and the rotor teeth of each rotor core and the suspension teeth and torque teeth of the corresponding stator core are spaced to form radial work air gaps.

Description

technical field [0001] The invention relates to the technical field of motor manufacturing, in particular to a double-sheet type 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, fault tolerance and robustness, and has broad application prospects in the fields of electric vehicles, aerospace, and household appliances. ...

Claims

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Application Information

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IPC IPC(8): H02K16/00H02K1/24H02K1/14H02K1/17
CPCH02K1/146H02K1/17H02K1/246H02K16/00H02K2201/12H02K2201/18H02K2213/03
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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