Invention Grant
- Patent Title: Permanent magnet electrical machine
- Patent Title (中): 永磁电机
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Application No.: US14347233Application Date: 2012-09-20
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Publication No.: US09461510B2Publication Date: 2016-10-04
- Inventor: Paul Evan Lillington
- Applicant: RADIAL FLUX LABORATORIES PTY LTD
- Applicant Address: AU Peakhurst
- Assignee: RADIAL FLUX LABORATORIES PTY LTD
- Current Assignee: RADIAL FLUX LABORATORIES PTY LTD
- Current Assignee Address: AU Peakhurst
- Agency: McDermott Will & Emery LLP
- Priority: AU2011903974 20110926; AU2012902715 20120626
- International Application: PCT/AU2012/001131 WO 20120920
- International Announcement: WO2013/044293 WO 20130404
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/28

Abstract:
A 2-pole machine arrangement (10) has a stator (100) with windings (101) in conventional form, wound either in a single phase or three phase configuration. The rotor is formed of stacked laminations. The laminations include rotor pole pieces (107) located between the two magnetic poles. Each pole is formed by a pair of (embedded) permanent magnets (103), angularly spaced-apart by inter-magnet segments (106). The rotor pole pieces (107) include a series of evenly-spaced slots (109) and a central void (108). The slots (109) are of various lengths to direct the flux from the magnets (103) into the air gap (121) at a desired angle normal to the rotor surface. The slots 109 may be varied in width and angle to achieve the desired lowest waveform distortion under load and the highest air gap flux. The slots (109) also contribute to changing the saliency of the rotor.
Public/Granted literature
- US20140246938A1 PERMANENT MAGNET ELECTRICAL MACHINE Public/Granted day:2014-09-04
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