A brushless double stator motor for hybrid electric vehicle

Abstract

The invention discloses a hybrid vehicle brushless double-stator electric machine which includes an electric machine casing (5). A first stator (1), a magnetic adjusting ring (3) and a second stator (4) are arranged in order from left to right inside the electric machine casing (5). An internal rotor (2) is disposed inside the first stator (1). The internal rotor (2) is connected to an output shat (6) of an internal combustion engine. The output shaft (6) of the internal combustion engine is supported in a left side bearing hole of the electric machine casing (5). The magnetic adjusting ring (3) is connected to a primary decelerator input shaft (3-3) which is supported in a right side bearing hole of the electric machine casing (5). The shaft axes of the first stator (1), the internal rotor (2), and the magnetic adjusting ring (3) are overlapped with the shaft axis of the second stator (4). The electric machine herein has no brush or slip ring structures, can reduce structural complexity of electric machines, has increased reliability, reduces maintenance cost, can help winding heat dissipation and increase dynamic balance of rotors and increases working efficiency.

Description

technical field [0001] The invention belongs to the field of hybrid electric vehicles, and in particular relates to a brushless permanent magnet-reluctance composite double-stator motor for hybrid electric vehicles. Background technique [0002] Hybrid vehicles are transition products from fuel vehicles to pure electric vehicles. In the research of hybrid vehicles, in order to overcome the incoordination between the engine and other system components in the existing series and parallel drive devices, the whole system is bulky and complex in structure. 1. The problem of high energy consumption and emission, and inability to effectively output power, Chinese patent document CN1929244A on March 14, 2007 provided a compound permanent magnet motor with axial and radial magnetic flux structure. The structural feature of the motor is that the permanent magnet rotor is in the shape of a barrel. There are multiple axially magnetized permanent magnets on the left outer surface of the ...

AI Technical Summary

Problems solved by technology

[0003] The problem in this patent is: there is a rotating winding on the iron core rotor, and a brush and a slip ring structure need to be installed on the left side of the rotor to input electric energy into the battery pack to charge it or to the stator to supply power for it. The existence of brushes increases mechanical vibration and noise, increases mechanical wear and maintenance costs, reduces device reliability and transmission efficiency, and at the same time, it is difficult for the inner rotor winding to dissipate heat

Images