Patent ID: 6595760
Filing Date: 2003-07-22
Classification: H02K

Abstract:
A compressor comprising:a case configured to collect a refrigerating mechanical oil compatible with a refrigerant at a bottom portion thereof; a compressing mechanical unit positioned in the case; and an electric motor unit have a stator and a rotor, the electric motor unit being positioned within the case, which drives the compressing mechanical unit, the compressing mechanical unit inhaling a refrigerant excluding chlorine, compressing the refrigerant, and exhaling the compressed refrigerant, and the compressing mechanical unit being lubricated with the refrigerating mechanical oil, wherein the stator includes a yoke having teeth sections on which three-phase wires are wound, the electric motor unit being driven by an inverter, the wires being wound on the teeth sections such that the wires on adjacent teeth sections have different phases, and the stator coil is constructed and arranged so as to be sufficiently compact so that a coil end of the stator coil, during operation is spaced at a distance which avoids immersion in refrigerating mechanical oil so as to minimize electric current leaking from the electric motor unit.