Title :
Application of Polar Anisotropic Sintered NdFeB Ring-type Permanent Magnet to Brush-less DC Motor
Author :
Kim, H. ; Koh, C. ; Kim, D. ; Kang, G.
Author_Institution :
Jahwa Electron. Co. Ltd., Cheongju
Abstract :
In the viewpoint of the motor design, the polar anisotropic sintered NdFeB PM is expected to give stronger magnetic fields at the air-gap of motor, and, therefore, a PM motor with higher power density is expected to be designed. In this paper, a 4 pole polar anisotropic sintered NdFeB PM is developed using dry pressing process with pulse magnetizing fields, and applied to the Brushless DC motor design.
Keywords :
boron alloys; brushless DC motors; magnetic fields; neodymium alloys; permanent magnet motors; pressing; sintering; NdFeB; brushless DC motor; dry pressing; magnetic fields; motor air-gap; permanent magnet motor; polar anisotropic sintering; pulse magnetizing fields; ring-type permanent magnet; Anisotropic magnetoresistance; Brushless DC motors; DC motors; Fabrication; Magnetic anisotropy; Magnetic fields; Magnetic flux; Perpendicular magnetic anisotropy; Powders; Pressing;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375904
