Mixed excitation type composite double-rotor motor

Abstract

The invention discloses a hybrid excitation type compound double-rotor motor, which comprises a stator, an outer rotor and an inner rotor assembled from the outside to the inside. The stator is a salient pole structure assembled from six E-shaped arc iron cores. A permanent magnet magnetized in the circumferential direction is clamped between two adjacent E-shaped arc iron cores. The magnetization directions of the two adjacent permanent magnets are opposite. The DC excitation winding is wound on the middle tooth of the E-shaped arc-shaped iron core. Three-phase centralized AC excitation windings are wound on the salient poles formed by two E-shaped arc iron cores and permanent magnets. The DC excitation windings and the three-phase centralized AC excitation windings share a stator slot and are separated from each other. The technical effect of the invention is that the structure is simple, the heat dissipation is easy, the motor performance can be improved, the output force can be increased, the starting torque is large, the speed regulation range is wide, and the motor is suitable for high-speed operation of the motor.

Description

technical field [0001] The invention belongs to the field of hybrid electric vehicles, and in particular relates to a hybrid excitation type compound double-rotor motor used for a parallel hybrid electric vehicle. Background technique [0002] In recent years, with the shortage of global oil resources and the increasingly serious problem of air pollution, countries around the world have paid more and more attention to the design of automobile energy saving and emission reduction. Hybrid electric vehicles, which combine the advantages of internal combustion engine vehicles and electric vehicles, are developing rapidly and become a hot spot in the development of new vehicles. In the research of hybrid electric vehicles, in order to overcome the incoordination between the engine and other components of the system in the existing series and parallel drive devices, and to solve the problem that the entire system is bulky, complex in structure, large in energy consumption and emis...

AI Technical Summary

Problems solved by technology

The problems in this patent are: the permanent magnet is installed on the permanent magnet rotor of the motor, and the permanent magnet rotor must be reinforced to overcome the centrifugal force generated when the motor is running, resulting in a complex structure of the outer rotor and high manufacturing costs; The air gap in the road reduces the performance of the motor; the permanent magnet rotor is located in the middle of the motor, and the temperature rise caused by the difficulty of heat dissipation will cause the permanent magnet to lose its magnetism, thereby limiting the power density of the motor and reducing the output force

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