Rotating electric machines, stator and rotor core assembly, methods of manufacturing rotating electric machines, methods of manufacturing non-oriented electric steel plates for stator and non-oriented electric steel plates for rotor, methods of manufacturing stator and rotor and non-oriented electric steel plate assembly

Abstract

The invention relates to a rotating electric machine comprising a State, rotor, and State and rotor housing, in which at least one of the following conditions 1 and 2 is satisfied. Condition 1: The thermal conductivity A of the non-oriented electric steel plate which is used for the State core is in the range of 12 to 35 W / (mK), the thermal conductivity B of the non-oriented electric steel plate which is used for the rotor core is in the range of 10 to 33 W / (mK)s and both thermal conductivity coefficients have the expression (1) A > B. Condition 2: The thermal diffusion coefficient AI of the non-vertical face steel plate that it is used for the State core is in the range of 3.0 X 10⁻⁶ to 9.0 X 10⁻⁶ m² / sW / (m⁻K), the thermal diffusion coefficient B1 of the non-vertical face steel plate that it is used for the rotor core is in the range of 2.5 X 10⁻⁶ to 8.5 X 10⁻⁶ m² / sW / (m⁻K), and both thermal diffusion coefficients have the expression (3) AI > BI.