A Stator Permanent Magnet Laminate Type Bearingless Switched Reluctance Motor
A switched reluctance motor, sheet-type technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit, electromechanical device, etc., can solve the problem of high speed and high power density, long axial length, critical High speed and other problems, to achieve the effect of short axial length, less drive circuit and simple control
Active Publication Date: 2019-12-31
宁波银禧机械科技有限公司
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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 switched reluctance motors must be used. The five-degree-of-freedom bearingless switched reluctance motor drive system is bulky, has a long axial length, and has a high critical speed, which makes it difficult to reflect the advantages of high speed and high power density of bearingless motor technology
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[0025] Such as Figure 1~6 A stator permanent-magnet laminar type bearingless switched reluctance motor shown includes a stator and a rotor 1, the side of the rotor 1 is provided with 12 rotor teeth 9, and the stator is composed of a stator core 3, a torque winding 10. The suspension winding 11, the first magnetic bridge 4, the permanent magnet 5, and the second magnetic bridge 6 are stacked in the axial direction. The stator core 3 is made into a ring, and the inner ring is arranged in the x direction and the y direction There are a total of four suspension teeth 7, two torque teeth 8 are evenly arranged on the inner ring of the stator core 3 between two adjacent suspension teeth 7, and the suspension winding 11 and the torque winding 10 are respectively wound on the suspension teeth 7 and on the torque tooth 8; the width of the suspension tooth 7 is greater than the width of the torque tooth 8, and the width of the suspension tooth 7 is greater than one pole pitch of the mot...
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The invention discloses a stator permanent-magnet type thin-plate bearingless switched reluctance motor, which comprises a stator and a rotor. The side of the rotor is provided with rotor teeth. The stator is composed of a stator core, a first magnetic bridge, a permanent magnet , the second magnetic bridge, the stator core is ring-shaped, and several suspension teeth are evenly arranged on the inner ring, and several torque teeth are evenly arranged on the inner ring of the stator core between two adjacent suspension teeth, and the suspension teeth The suspension winding and the torque winding are respectively wound on the torque teeth; the rotor is coaxially arranged in the inner cavity of the stator core, and the rotor teeth are spaced apart from the suspension teeth and the torque teeth to form a radial working air gap. A central hole is coaxially arranged on the rotor; the second magnetically conductive bridge is composed of a central column and several magnetically conductive arms evenly distributed on the same circumference of the central column, and each magnetically conductive arm is connected with a joint via a permanent magnet. The first magnetic bridge of the stator core, the central column is inserted into the central hole, and the two are arranged at intervals to form a central working air gap.
Description
technical field [0001] The invention relates to the technical field of motor manufacturing, in particular to a stator permanent magnet thin-plate 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. [0003...
Claims
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IPC IPC(8): H02K1/12H02K1/22H02N15/00
CPCH02K1/12H02K1/22H02K2201/03H02N15/00
Inventor 张涛陈万鲁庆丁祖军丁卫红唐中一王业琴
Owner 宁波银禧机械科技有限公司