Magnetic field analysis of polar anisotropic plastic magnet and application for dc brushless motor
✍ Scribed by Shingo Kitamura; Yoshiyuki Ishihara; Toshiyuki Todaka; Yoshiaki Inoue
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 920 KB
- Volume
- 127
- Category
- Article
- ISSN
- 0424-7760
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✦ Synopsis
In this paper we propose an analytical method of DCBLM with polar anisotropic plastic rotor magnets. The orientation of the polar anisotropic plastic magnet is different for each part.
In our method, the magnetic flux distribution of the injection mold for polar anisotropic plastic magnets is analyzed by FEM first. Next, the orientation is determined from the magnetic flux distribution. Finally, based on the latter, the nonlinear dynamic magnetic field of DCBLM is analyzed. The analytical value was in good agreement with the experimental value of magnetic flux distribution in the magnet unit and the characteristic of DCBLM.