Hybrid excitation starting motor

Abstract

The invention proposes a hybrid excitation starting motor. The hybrid excitation starting motor comprises a shaft, excitation windings, two rotor iron cores, two sets of armature windings, a stator iron core, permanent magnets and a pulley wheel, wherein 4N rotor poles with fan-shaped bulges are arranged on one surface, opposite to the stator iron core, of each of the two rotor iron cores, 6N stator poles with fan-shaped bulges are arranged on one surface, opposite to each of the two rotor iron cores, of the stator iron core, each stator pole is wound with the armature winding, the excitation windings are embedded onto the stator iron core and are parallel to the shaft, the excitation windings are wound around the three stator poles, the winding directions of adjacent excitation windings are opposite, one of the permanent magnets is embedded into the root of a fan shape where the three stator poles are located and which is wound with the same excitation winding, and the permanent magnets are also parallel to the shaft. By the hybrid excitation starting motor, a brushless motor is achieved, the advantages of small axial size and compact structure of a disc-type motor can be effectively utilized, and the characteristic that a gap magnetic field of the hybrid excitation starting motor is convenient to adjust is also effectively developed.

Description

technical field [0001] The invention relates to a hybrid excitation starter generator, which belongs to the technical field of automobile electric appliances. Background technique [0002] In traditional automotive electrical appliances, starting and power generation are completed by two independent systems. Generally, there are large starting noise, low speed, incomplete combustion, serious emission pollution and low generator power, which cannot meet the increasing power consumption of automotive electrical appliances. Increased needs are not enough. With the rapid development of electronic and computer control technology, inspired by the integrated motor system of starter and power generation in aircraft, starter generators have begun to be used in automobiles. The starter generator can not only be used as a motor to start the engine, but also can be used as a generator to supply power to electrical equipment. With the development of automobile technology, starter gener...

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Problems solved by technology

[0007] At present, the applicant has searched at home and abroad, but has not yet retrieved the hybrid excitation starter generator of the present invention, which adopts a double-rotor disc hybrid excitation structure, and its permanent magnet is a rectangular permanent magnet embedded in the stator core.

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