Permanent-magnet axial-magnetic-field motor with unit-type layered iron core

Abstract

The invention relates to a permanent-magnet axial-magnetic-field motor with a unit-type layered iron core in order to effectively problems about low operation quality and efficiency. According to the technical scheme, the layered iron core is fixed on a stator plate to form a stator, a permanent magnet is fixed on a rotor yoke to form a rotor, both the stator and the rotor are arranged on a shaft, the stator is tightly fixed together with the shaft, the rotor rotates around the shaft, the stator and the rotor are axially oppositely arranged, and an air gap is formed between the stator and the rotor to form an axial magnetic field structure; the layered iron core comprises an inner iron core body, an inner coil winding on the outer periphery of the inner iron core body, an outer iron core body sleeving the inner coil from the outer periphery and a sleeve sleeving the outer iron core body from the outer periphery, protruding edges protruding outwards are arranged at two ends of the sleeve, and the outer coil is wound on the outer periphery of the sleeve between the protruding edges at the two ends. By the arrangement, the effective cross section of the air gas is increased, loss of main magnetic potential in the air gap is reduced, higher harmonic and vibration and noise caused by the same are reduced, and motor operation quality and electromechanical conversion efficiency are improved.

Description

technical field [0001] The invention relates to a rotating electrical machine, in particular to an axial field permanent magnet motor with a unitary layered iron core. Background technique [0002] Axial field motors currently have two typical structures. One is that the strip is wound while punching, and finally forms a stator core with holes, slots and yokes; the other is that the strip is first rolled into an independent columnar body, and then the fastener and the The supporting parts are combined to form a complete stator core. For the former, the distance between any adjacent holes on the silicon steel strip is not equal, which requires high processing precision, complicated process, expensive equipment, and high cost of a single machine, which has become a bottleneck for popularization. The latter has a simple structure and process, and the cost of a single machine is relatively low, but in terms of performance, it is far from meeting the requirements for use. Beca...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an axial field permanent magnet motor with a unitary layered iron core, which can effectively solve the problem of running quality while retaining the advantages of simple structure and low cost. and inefficiencies

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