Rotor eccentricity preventing structure

Abstract

According to a rotor eccentricity preventing structure of the invention, on a motor which comprises a stator that includes a motor housing of which an iron core that is coiled by a coil is jointed, and a rotor which comprises a permanent magnet that rotates through an electromagnetic field generated by the coil and a rotating shaft, a bearing which supports the rotor to rotate is movably mounted on the motor housing. According to the rotor eccentricity preventing structure provided by the invention, eccentricity of the motor rotor can be prevented and a clearance between the rotor and the stator is kept even when thermal expansion occurs on the rotating shaft of an axial flux motor.

Description

technical field

[0001] The present invention relates to a structure for preventing rotor eccentricity, in particular to a structure for preventing rotor eccentricity which prevents rotor eccentricity caused by thermal expansion of a rotating shaft of a motor mounted on a vehicle such as an electric vehicle. Background technique

[0002] Currently, research and development activities are active on hybrid vehicles or electric vehicles, which are another form of vehicles that are environmentally friendly and consider fuel efficiency, which are further developed from vehicles using combustion engines.

[0003] A hybrid vehicle combines the existing engine with an electric motor driven by electric energy, and drives the vehicle with two power sources. Electric vehicles are only driven by electric motors, thereby reducing environmental pollution caused by exhaust gas and improving fuel efficiency. However, it is popular in the United States and Japan, and it is gradually attractin...

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