Invention Grant
- Patent Title: Permanent magnet alternator with segmented construction
- Patent Title (中): 永磁式交流发电机具有分段结构
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Application No.: US12372152Application Date: 2009-02-17
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Publication No.: US07816830B2Publication Date: 2010-10-19
- Inventor: Gary Dickes
- Applicant: Gary Dickes
- Agency: Jansson Shupe & Munger Ltd
- Main IPC: H02K21/12
- IPC: H02K21/12

Abstract:
A permanent magnet apparatus (10) for achieving electrical performance is provided. The apparatus (10) includes a cylindrical stator assembly (12) having a plurality of stator pole assemblies (92) and a cylindrical rotor assembly (14) having a plurality of rotor pole assemblies (20). Each stator pole assembly (92) includes a wire coil (102) and a laminated stack (98) of axially aligned stator segments (100). Each of the stator segments (100) has a center-post portion (106) that is detachably engaged to a back-iron portion (104). Each rotor pole assembly (20) is provided with a laminated stack (28) of axially aligned rotor segments (30) to which is secured a permanent magnet (32). Preferably, the stator pole assemblies (92) are secured to a base plate (26) by fastening rods (74) and the stator assembly (12) includes stacks (156) of back-iron portions (104) where each stack (156) is positioned to abut two stator pole assemblies (92). The rotor pole assemblies (20) are preferably secured to a rotor plate (24) by fastening rods (74) and magnet retention-stops (66,68) defined by stacked rotor segments (28,84) frictionally support the permanent magnet (32). The apparatus (10) is most desirably operated as a low-shaft-speed, permanent magnet alternator.
Public/Granted literature
- US20090218900A1 Permanent Magnet Alternator with Segmented Construction Public/Granted day:2009-09-03
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