Brushless double-rotor machine

Abstract

This invention relates to a brushless dual-rotor motor composed of an inner motor of an axial magnet circuit structure and an outer motor of excitation circuit structure, in which, the inner motor is composed of an input shaft, an inner rotor core, an inner magnet alnico of an inner rotor, an outer rotor core and an inner winding of an outer rotor, the outer rotor is composed of a stator winding, a stator core, an outer rotor core and an outer winding of the outer rotor, which are placed in the following sequence from inside: the input shaft, the inner rotor core, the magnet alnico of the inner rotor, a core of the outer rotor, the inner winding of the outer rotor, the outer winding of the outer rotor, the stator core, the stator winding and the shell, and the core of the inner rotor is fixed on the input shaft and rotates together with it, the stator core is fixed on the shell, the core of the outer rotor is connected with the output shaft rigidly and rotates together with it, the inner winding of the outer rotor and the outer winding of the outer rotor form a circuit.

Description

Technical field [0001] The invention relates to a motor, in particular to a brushless double-rotor motor. Background technique [0002] The hybrid drive system has three forms: series, parallel and hybrid. The series hybrid power system first converts all the power output by the engine into electric energy by the generator, and then converts the electric energy into mechanical energy to drive the wheels by the electric motor. Its advantage is that it can realize the optimal control of the engine. The disadvantage is that the energy is completely converted twice. Excessive energy loss. The parallel system is based on the traditional automobile transmission system, plus an electric drive system to provide auxiliary power for the automobile when accelerating or climbing. Its advantage is that the ratio of energy conversion is small, and the disadvantage is that the engine and the wheels rely on direct machinery. Connected, the engine cannot always work at a high efficiency point. Th...

AI Technical Summary

Problems solved by technology

The series hybrid power system first converts all the power output by the engine into electrical energy by the generator, and then converts the electrical energy into mechanical energy to drive the wheels through the electric motor. Its advantage is that it can realize the optimal control of the engine. Lost too much energy

The parallel system is based on the traditional car transmission system, plus an electric drive system to provide auxiliary power for the car when accelerating or climbing. connection, the engine cannot always work at the high efficiency point

The common hybrid system divides the power from the engine into mechanical and electric paths through a special power distribution device, which can take advantage of the advantages of series and parallel, but the structure is complex and the cost is high. At the same time, the complex transmission mechanism will reduce transmission efficiency

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