초록 ▼

An AC induction motor assembly includes first and second endshields at least one of which is of special construction for reducing material costs. The motor assembly includes a stator assembly and a rotor assembly having an associated rotor shaft, which are mounted between and supported by the endshi

An AC induction motor assembly includes first and second endshields at least one of which is of special construction for reducing material costs. The motor assembly includes a stator assembly and a rotor assembly having an associated rotor shaft, which are mounted between and supported by the endshields. The endshields are of a skeletal construction and include a plurality of truss members which are so configured as to permit the endshields to be made of different materials while retaining the same configuration. The truss members include two rails parallel with one another and oriented generally parallel to the axis of rotation of the rotor shaft, and a web extending between the rails, integral with them.

대표청구항 ▼

In a motor assembly including a first endshield and a second endshield, a wound stator mounted to and between said endshields, a rotor mounted for rotation with respect to said stator, and a shaft extending from said rotor and being journaled in said endshields for rotation with respect to said stat

In a motor assembly including a first endshield and a second endshield, a wound stator mounted to and between said endshields, a rotor mounted for rotation with respect to said stator, and a shaft extending from said rotor and being journaled in said endshields for rotation with respect to said stator, the rotor having an axis of rotation; the improvement comprising at least one of said end shields being a skeletal end shield comprising a plurality of truss members integral with one another; said truss members defining H-beams and all being made up of rails generally parallel with one another and oriented substantially parallel to the axis of rotation of said rotor, and a web extending between and integral with said rails; said skeletal endshield defining three generally parallel spaced apart planes, said planes being generally perpendicular to the axis of rotation of said rotor shaft.