Author :
Akita, Hiroyuki ; Nakahara, Yuji ; Miyake, Nobuaki ; Oikawa, Tomoaki
Author_Institution :
Manuf. Eng. Center, Mitsubishi Electr. Corp., Amagasaki, Japan
Abstract :
This article discusses motors for compressors in domestic air conditioners, an area in which there is a strong demand for high efficiency and also reports the results of the efficiency improvement and productivity of a new core structure. An innovative core structure and manufacturing method boosts efficiency of permanent-magnet motors. This article presents the close relationship between the motor characteristics and the manufacturing method and indicates a way to improve both motor characteristics and the productivity. To pursue further improvement in motor performance by improving the coil space factor further using the joint-lapped core and manufacturing cores with smaller magnetic resistance.
Keywords :
air conditioning; coils; compressors; domestic appliances; electric resistance; magnetic cores; permanent magnet motors; coil space factor; compressors; core manufacturing method; core structure; domestic air conditioners; joint-lapped core; magnetic resistance; permanent-magnet motors; productivity; Coils; Compressors; Copper; Energy loss; Magnetic cores; Permanent magnet motors; Productivity; Teeth; Wires; Wounds;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/MIA.2005.1524735
