发明授权
- 专利标题: Electric motor for clothes washing machine drive
- 专利标题(中): 洗衣机电动马达驱动
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申请号: US045981申请日: 1993-04-27
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公开(公告)号: US5353613A公开(公告)日: 1994-10-11
- 发明人: Dennis E. Smith , John J. A. Williams , Gerald D. Duncan , Graeme D. Thomas , John G. Borrows , Frank W. Shacklock
- 申请人: Dennis E. Smith , John J. A. Williams , Gerald D. Duncan , Graeme D. Thomas , John G. Borrows , Frank W. Shacklock
- 申请人地址: NZX Auckland
- 专利权人: Fisher & Paykel, Limited
- 当前专利权人: Fisher & Paykel, Limited
- 当前专利权人地址: NZX Auckland
- 优先权: NZX215389 19860306; NZX217623 19860918; NZX218356 19861121
- 主分类号: H02K21/22
- IPC分类号: H02K21/22 ; D06F37/30 ; D06F37/40 ; F02B61/04 ; H02K7/14 ; H02K29/00
摘要:
An electric motor (2) for a clothes washing machine including the motor and a drive, the motor having a stator (25) held outboard of a frame carrying bearings (37, 38) in which a shaft (11) rotates, the shaft carrying the rotor (21) outboard of the stator (25), and permanent magnets (17) on an inner face of the rotor. The stator (25) is formed as an annular helical yoke edgewise wound from a strip of magnetic material and having an inner face and an outer face, the strip having pole pieces (8) formed integrally therewith extending from one edge of the strip and the strip being edgewise wound whereby the pole pieces coincide in stacked groups to form a plurality of poles arranged at equally spaced intervals extending radially outwardly from the outer face of the yoke. Energizable stator windings (26) are wound directly on the poles (8) of the stator and are adapted to be energized through an electronic commutation circuit (65,66) and the rotor (21) is mounted for rotation exteriorly of and relative to the stator, the rotor comprising a backing ring (16) of magnetic material and a series of permanent magnets (17) held at spaced-apart intervals on an inner surface of the backing ring (16) and opposing the poles (8) of the stator (25).
公开/授权文献
- US6064235A Shared path phase detector 公开/授权日:2000-05-16
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