Hybrid Disc Motor

Abstract

The hybrid excitation disc motor of the present invention is composed of a shaft, a bearing, a casing, an excitation winding, a stator core, a permanent magnet, a stator pole, an armature winding, a rotor core and a front end cover. The stator core is fixed on the motor casing, and the side of the stator core opposite to the rotor core is fixed with permanent magnets and stator poles in sequence. Each fan-shaped permanent magnet is fixed with three fan-shaped stator poles along the arc direction. There are fan-shaped protruding rotor poles in the direction opposite to the rotor core and the stator core. The stator core in the middle of every two permanent magnets has a groove, and the excitation winding is embedded in the groove and wound around the corresponding stator core of one permanent magnet. The technology of the present invention not only has the advantage of high specific power of the disc motor, but also the excitation winding and the permanent magnet are located on the stator, and the rotor is only a salient pole core structure, so the rotor has a simple structure and can rotate reliably at high speed; the excitation winding can strengthen The permanent magnetic field can also weaken the permanent magnetic field, which is beneficial to improve low-speed high-torque working conditions and high-speed magnetic field weakening working conditions.

Description

technical field [0001] The invention relates to a hybrid excitation disc motor, which belongs to the technical field of automobile electric appliances. Background technique [0002] In recent years, with the improvement of high temperature resistance and price reduction of permanent magnet materials, permanent magnet motors have been more widely used in national defense, industrial and agricultural production, and daily life, and are moving towards high power, high performance and miniaturization. direction of development. However, due to the fixed magnetomotive force of the permanent magnets in the existing permanent magnet motors, the main magnetic flux of the motor is not adjustable, resulting in a narrow operating range of constant power and a wide range of speed regulation. Rotating together, the permanent magnet needs to be fixed by a special process, and the manufacturing cost is high, especially when the motor rotates at a high speed, it is more difficult to fix the...

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Problems solved by technology

[0007] At present, the applicant has not retrieved relevant reports on the use of the above technologies

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