Synchronous reluctance motor rotor and synchronous reluctance motor

Abstract

The invention aims at providing a synchronous reluctance motor rotor and a synchronous reluctance motor, and mainly aims to solve the problem of relatively serious magnetic leakage of a conventional rotor. The synchronous reluctance motor rotor comprises a rotor iron core, wherein a plurality of magnetic flux barrier groups are arranged on the rotor iron core, each magnetic flux barrier group comprises at least two magnetic flux barriers, the at least two magnetic flux barriers are arranged in a radial direction of the rotor iron core at intervals, the synchronous reluctance motor rotor is characterized that the magnetic flux barriers extend to the outer edge of the rotor iron core, an opening is formed at the outer edge of the rotor iron core, the rotor iron core also comprises magnetic bridges, the magnetic bridges are arranged inside the magnetic flux barriers and used for connecting the inner surfaces and the outer surfaces of the magnetic flux barriers, and the distance between the magnetic bridges and the outer edge of the rotor iron core is not less than the predetermined distance. By the synchronous reluctance motor rotor, the magnetic leakage of the rotor can be reduced, and the rotor strength is improved.

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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