Compressor motor for air conditioners realizing high efficiency and low cost

摘要

The compressor motor accounts for most of theconsumption of electric power in an air conditioner. To promoteenergy-saving, Toshiba has been progressively changing thecompressor motors in its air conditioners to high-efficiencybrushless DC motors We have now developed a new compressormotor in order to achieve even greater energy-saving. Aconcentrated winding stem was adopted featuring direct windingon the teeth of the stator core, for the first time in the industry. Asa result, it was possible to realize a high-efficiency, compact,lightweight, and low-cost motor. Moreover, by constructing a newsystem for production, we were able to improve productivity and quality.