Invention Grant
US07828988B2 Anisotropic rare earth bonded magnet having self-organized network boundary phase and permanent magnet motor utilizing the same
有权
具有自组织网络边界相的各向异性稀土粘结磁体和利用其的永磁电动机
- Patent Title: Anisotropic rare earth bonded magnet having self-organized network boundary phase and permanent magnet motor utilizing the same
- Patent Title (中): 具有自组织网络边界相的各向异性稀土粘结磁体和利用其的永磁电动机
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Application No.: US11659619Application Date: 2005-07-22
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Publication No.: US07828988B2Publication Date: 2010-11-09
- Inventor: Fumitoshi Yamashita
- Applicant: Fumitoshi Yamashita
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2004-243370 20040824
- International Application: PCT/JP2005/013479 WO 20050722
- International Announcement: WO2006/022101 WO 20060302
- Main IPC: H01F1/08
- IPC: H01F1/08
Abstract:
An anisotropic rare-earth bonded magnet having a network boundary phase is provided by imparting melt fluidity accompanied by a slip to a composite granule and compressing and molding the composite granule in a magnetic field together with extensible polymer molecules and a chemical contact. In the bonded magnet, the maximum energy product is 147 kJ/m3 in the thickness of 1 mm, or 127 kJ/m3 in the thickness of 300 μm. This bonded magnet contributes to increase in output and decrease in size and weight of a permanent-magnet motor.
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