Vehicle-mounted hybrid excitation generator

Abstract

The invention belongs to the field of hybrid excitation generators, and discloses a vehicle-mounted hybrid excitation generator. The generator comprises a stator and a rotor, wherein the stator comprises a magnetic conductive casing, a field winding, a stator core and an armature winding disposed on the stator core; the rotor is arranged between the oppositely arranged stator cores, the field winding is in annular concentrated excitation winding structure and disposed inside the magnetic conductive casing and encloses the rotor therein; the rotor comprises a rotor core, a permanent magnet anda core block, and a plurality of iron cores and blocks and permanent magnets are arranged on both sides of the iron core respectively, wherein the iron cores and the permanent magnets are alternatelyarranged at equal intervals along the circumferential direction of the side surface of the iron core, and the magnetic flux generated by each of the permanent magnets and the field winding is superposed to form a mixed exciting magnetic flux. Through the invention, the hybrid excitation magnetic flux is realized, the motor space is effectively utilized, the voltage regulation characteristics are good, the axial length of the motor is short, and the power density is high.

Description

technical field [0001] The invention belongs to the field of hybrid excitation generators, and more specifically relates to a vehicle-mounted hybrid excitation generator. Background technique [0002] In recent years, the improvement of automobile automation and comfort has led to the gradual increase of on-board power. As an important part of automobiles, generators have higher performance requirements. Therefore, the research and development of high-performance generators has become the development direction of the current motor industry and the growth point of production capacity. [0003] There are two types of motors currently used in vehicle-mounted generators: the first type is electric excitation generators, and the second type is permanent magnet synchronous motors. Electric excitation generators have a wide range of voltage regulation, but due to the existence of excitation windings, It leads to a large excitation copper loss, which reduces the efficiency of the m...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a vehicle-mounted hybrid excitation generator. Through the design of its key components, the stator and the rotor, the rotor is arranged between the stators, and the ring-shaped concentrated excitation winding is arranged on the magnetically conductive The shell is inside and covers the rotor. The purpose is to make full use of the volume occupied by the entire motor, thereby solving the technical problems of large volume, difficult excitation adjustment and low conversion efficiency of the hybrid excitation winding motor.

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