Modulation type brushless permanent magnet dual-rotor motor for hybrid electric vehicle

Abstract

The invention discloses a modulation type brushless permanent magnet dual-rotor motor for a hybrid electric vehicle. The modulation type brushless permanent magnet dual-rotor motor comprises a machine base, wherein a stator, an adjustable magnetic ring rotor, a permanent magnet rotor, an internal stator and an output shaft are arranged in the machine base from outside to inside in sequence; the adjustable magnetic ring rotor is connected to the output shaft of the adjustable magnetic ring rotor to directly drive vehicle wheels; the permanent magnets in the permanent magnet rotor are radially magnetized, and the polarities of the adjacent permanent magnet are opposite; the windings placed on the stator and the internal stator are all three-phase distributed type or concentrated windings; and the adjustable magnetic ring rotor comprises a magnetic conducting material and a non-magnetic-conducting material which are uniformly staggered in a circumferential direction. The modulation type brushless permanent magnet dual-rotor motor provided by the invention is combined with the concentric type magnetic gear design based on magnetic field modulation; a modulation type motor is introduced to a hybrid power synthetic system; the coupling and distribution of the hybrid power, and the stepless speed change of the vehicle are realized; a combination of an electric brush and a collecting ring is omitted, and a part of mechanical gears in the existing system are replaced; due to the radial concentric type arrangement structure, the space utilization ratio is improved; and meanwhile, the power density of the motor, and the transmission efficiency and operational reliability of the system are improved.

Description

technical field [0001] The invention relates to a body design technology of a modulated brushless permanent magnet dual-rotor motor for a hybrid vehicle, belongs to the field of automobile motors, and relates to the technical field of motor body design and working principles. Background technique [0002] In the application field of hybrid electric vehicles, the power coupling distribution device is one of its core components. In view of the application characteristics of power distribution synthesis and stepless speed regulation in hybrid electric vehicles, there are still problems to be solved in the prior art: 1. The shortcomings of noise and inconvenient maintenance in the mechanical power mixing device; 2. Electromagnetic hybrid power The dual-rotor motor in the coupling device is brushless; 3. The system structure is optimized and the operation reliability is improved. [0003] At present, the most widely used hybrid vehicle in the market, the Japanese Puris, uses a c...

AI Technical Summary

Problems solved by technology

In view of the application characteristics of power distribution synthesis and stepless speed regulation in hybrid electric vehicles, there are still problems to be solved in the prior art: 1. The shortcomings of noise and inconvenient maintenance in the mechanical power mixing device; 2. Electromagnetic hybrid power Brushless dual-rotor motor in the coupling device; 3. Optimization of system structure and improvement of operational reliability

In the above-mentioned dual-rotor motor, due to the rotation of the inner rotor, this type of dual-rotor motor needs to use a brush collector ring combination to transmit current from a stationary system to a rotating system, resulting in a decrease in system operating efficiency, reduced reliability, and inconvenient maintenance. disadvantages

Patent CN201410757491.4 "radial-radial magnetic field electromagnetic planetary gear power divider" proposes an electromagnetic planetary gear power divider, which uses a radially modulated double-rotor motor and a radial torque regulating motor placed side by side in the axial direction, so that The hybrid system uses a dual-rotor motor to realize brushless. However, the power density and power density of the two axially rigidly connected components of this type of composite dual-rotor motor are not exactly the same, but the casing of the same size is used. It causes a waste of part of the space, further reduces the power density or torque density of the entire motor system, and also reduces the reliability of the motor operation

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