Patent ID: 6882078
Filing Date: 2005-04-19
Classification: H02K

Abstract:
1. A rotating electrical machine comprising: a rotor core, a plurality of rotor slots radially provided at predetermined spaces in a circumferential direction of the rotor core, and a plurality of rotor conductors, respectively, received in the rotor slots, wherein the rotor conductors comprise: a rotor conductor upper portion, which is positioned near to an outer periphery of a rotor, and has a trapezoidal cross sectional shape which tapers continuously toward the outer periphery of the rotor, and a rotor conductor lower portion, which is contiguous to the rotor conductor upper portion to be positioned nearer to a center of the rotor than the rotor conductor upper portion, and a cross sectional shape of which is made rectangular to have substantially the same width as that of a bottom of the rotor conductor upper portion.