Three-brush double-rotor inner ring permanent magnet synchronous motor without stator

Abstract

The invention discloses a three-brush double-rotor inner ring permanent magnet synchronous moor without a stator. The three-brush double-rotor inner ring permanent magnet synchronous moor without the stator comprises a machine shell, an outer rotor and an inner rotor. The outer rotor comprises an outer rotation shaft. The inner end of the outer rotation shaft is arranged inside the machine shell and is provided with an outer rotor iron core and an outer rotor winding which is embedded into the outer rotor iron core. An end cover is arranged on the end portion of the inner end of the outer rotation shaft. The outer end of the outer rotation shaft extends outside a first end of the machine shell. Three sliding rings are arranged on a position, close to the end portion, at the outer end of the outer rotation shaft and are respectively connected with a brush. Each brush is connected with an inverter. The inner rotor comprises an inner rotation shaft. The inner end of the inner rotation shaft is arranged inside the outer rotor and is provided with an inner rotation shaft iron core and permanent magnets arranged on the outer lateral wall of the inner rotation shaft iron core in a staggered mode along the circumference direction. The outer end of the inner rotation shaft extends out of a second end, opposite to the first end, of the machine shell. The three-brush double-rotor inner ring permanent magnet synchronous moor without the stator is simple in structure, breaks the limitation that a common motor is provided with only one rotation shaft, leaves out a stator part, and can be applied in a plurality of conditions.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a three-brush double-rotor inner ring permanent magnet synchronous motor without a stator. Background technique [0002] The dual-rotor motor has two rotors and rotating shafts with independent rotational speeds, which can realize dual-axis independent drive, so it has broad application prospects in various occasions, such as the electric drive system of hybrid vehicles, the electric stepless motor of automobiles and wind turbines Transmission and modern machine tool CNC turntable, etc. [0003] At present, the double-rotor permanent magnet motor that has been published at home and abroad is a new type of motor that is set together with an outer rotor permanent magnet motor and an inner rotor permanent magnet motor and shares a stator. But because it can be regarded as two independent ordinary motors, there must be two controllers, which makes the control mechanism more complicat...

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Problems solved by technology

But because it can be regarded as two independent ordinary motors, there must be two controllers, which makes the control mechani

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