Synchronous reluctance motor rotor and synchronous reluctance motor

Abstract

The purpose of the present invention is to provide a synchronous reluctance motor rotor and a synchronous reluctance motor, and the main purpose is to improve the serious problem of the existing rotor flux leakage. It includes a rotor iron core, the rotor iron core includes a plurality of magnetic flux barrier groups, and each magnetic flux barrier group includes at least two magnetic flux barriers arranged at intervals in the radial direction of the rotor iron core; it is characterized by In that: the magnetic flux barrier extends to the outer edge of the rotor iron core and forms an opening at the outer edge of the rotor iron core; the rotor iron core further includes a magnetic bridge, and the magnetic bridge is arranged on the magnetic Passing through the interior of the barrier and connecting the inner surface and the outer surface of the magnetic flux barrier, the magnetic bridge is not less than a predetermined distance from the outer edge of the rotor core. The invention can reduce the magnetic leakage of the rotor and improve the strength of the rotor.

Description

technical field [0001] The invention relates to the field of motors, in particular to a synchronous reluctance motor rotor and a synchronous reluctance motor. Background technique [0002] In the prior art solution, the publication number is CN101230856A, which discloses a motor rotor structure, and its structure is as follows: figure 1 As shown in: the motor includes a stator and a rotor, the stator and the rotor slices both adopt a laminated structure, wherein the rotor slices contain a plurality of flux barriers 201 formed therein, for each flux barrier 201, from the outer circumferential surface of the rotor The distances to the ends of the flux barriers 201 are basically the same, and for different flux barriers 201, the distances between the ends of the flux barriers 201 and the outer circumferential surface of the rotor are different; The obvious feature of the rotor is that the outer surface is circular, and the bridge section 203 connecting the inner and outer surf...

AI Technical Summary

Problems solved by technology

[0003] The existence of the bridge section 203 is to ensure that the rotor can still be mechanically integrated after the formation of each flux barrier 201 inside the rotor. figure 2 As shown by the magnetic force lines in the middle, part of the leakage flux is directly short-circuited through the bridge section, rather than figure 1 The main magnetic circuit (effective magnetic field line) shown by the dotted line in the middle passes through the magnetic conduction channel 202 of the rotor, resulting in a decrease in the salient pole difference of the motor, resulting in a decrease in performance

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