Axial field motor

Abstract

The invention discloses an axial magnetic field motor, which belongs to the field of motors. It includes a casing, and a rotor assembly, a front stator assembly and a rear stator assembly are arranged in the casing. The rotor disk of the rotor assembly is provided with a plurality of magnetic steel components, each magnetic steel component includes an inner magnetic steel arranged on the inner side of the rotor disk and an outer magnetic steel arranged on the outer side of the rotor disk, the inner magnetic steel of the same magnetic steel component and The magnetic poles of the outer magnets are in opposite directions; both the front stator assembly and the rear stator assembly include a plurality of stator units arranged in a ring, and the stator units are supported and fixed by the support structure. The stator unit includes a U-shaped magnetic core, and the inner end face of the U-shaped magnetic core The ring shape of the inner magnetic steel is aligned, the outer end face of the U-shaped magnetic core is aligned with the ring shape of the outer magnetic steel, and a coil winding is arranged on the U-shaped magnetic core. The invention reduces the weight and iron loss of the stator yoke, reduces the weight of the rotor, reduces the rotational inertia of the rotor, and can greatly shorten the axial dimension of the motor.

Description

technical field [0001] The invention relates to the field of motors, in particular to an axial magnetic field motor. Background technique [0002] Axial field motors, also known as axial flux motors or disk motors, have a stator assembly and a rotor assembly of a disk structure. The air gap of the axial field motor is planar, and the air gap magnetic field is axial, which has the advantages of compact structure, small volume, light weight, high torque density, and small rotor moment of inertia. [0003] Axial field motors usually have the following structures: 1. Single rotor and single stator: a stator assembly and a rotor assembly (single-sided air gap); 2. Double rotor single stator: two rotor assemblies, a middle stator assembly ( Double-sided air gap); 3. Single-rotor double-stator: two stator assemblies, one rotor assembly in the middle (double-sided air gap); 4. Multi-rotor multi-stator: multiple stator assemblies and multiple rotor assemblies interpenetrated (multi-...

AI Technical Summary

Problems solved by technology

However, this patent is an axial field motor with a double rotor and a single stator, and is not suitable for an axial field motor with a single rotor and a double stator.

Moreover, the rotor yoke of this patent participates in magnetic conduction, which cannot further reduce weight and eliminate iron loss, and is not suitable for axial field motors with single rotor and double stators without rotor yoke.

[0007] From the above, it can be known that for a single-rotor double-stator axial field motor with no rotor yoke, how to reduce the iron loss and weight of the stator yoke, there is no technical solution in the prior art

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