A flywheel type permanent magnet starter generator

Abstract

The invention proposes a flywheel type permanent magnet starter generator, comprising a shaft (1), a flywheel (2), an N-pole yoke (4), a stator core, an armature winding, an N-pole rotor core (7), a permanent Magnet (8), S pole rotor core (11) and S pole yoke (12). The stator core is composed of an N-pole stator core with a pole number of 3n and an S-pole stator core arranged at intervals in the axial direction, and the excitation element is in the middle of the two stator cores; the rotor core is composed of an N-pole rotor core with a pole number of 2n or 4n and an S pole. The pole stator cores are arranged at intervals in the axial direction, and the difference between the N-pole rotor core and the S-pole rotor core in the circumferential direction is 360° / 4n or 360° / 8n. The demagnetization effect of the permanent magnet of the motor of the present invention is small; its magnetic circuit path is short, and most of the magnetic circuit passes through the silicon steel sheet, so the iron loss is small; the coil on the N pole stator pole and the coil on the S pole stator pole can effectively complement each other; It has a flywheel type outer rotor structure and can start and generate electricity.

Description

technical field [0001] The invention relates to a flywheel type permanent magnet starter generator, which belongs to the technical field of automobile motors. Background technique [0002] The starter generator can operate not only as a starter, but also as a generator, supplying power to electrical equipment after starting the engine. The flywheel starter alternator rearranges the traditional starter, generator and engine flywheel, and assembles them together compactly, and can be directly installed on the crankshaft between the engine and the gearbox, or directly on the flywheel of the diesel engine Inside. It enables the car to automatically coordinate start / stop transitions, improving fuel efficiency. Due to the system's brushless stator and rotor design, the component parts of the system do not wear and tear and are therefore maintenance-free. [0003] At present, there have been some researches on the use of permanent magnet starter generators at home and abroad. Fo...

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Problems solved by technology

After searching by the applicant, the structure of the iron core, permanent magnet and winding configuration proposed by the present invention has not been retrieved at home and abroad.

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