Title:
PERMANENT-MAGNET THREE-PHASE ALTERNATING-CURRENT POWER GENERATOR WITH LOW STATIC TORQUE AND LOW SPEED
Document Type and Number:
WIPO Patent Application WO/2017/120702
Kind Code:
A1
Abstract:
A permanent-magnet three-phase alternating-current power generator with a low static torque and a low speed comprises an upper cover (3), a lower cover (9), a yoke (4), a shaft (10), an upper bearing (1), a lower bearing (12), an insertion piece (2), a permanent magnet (5), a stator iron core (6), a slot insulation (7), a winding (8), and an outgoing line (11). The power generator does not employ a skewed slot structure or a skewed pole structure, the number of magnetic poles is 12, the number of slots of the stator iron core is 39, and a pole-arc coefficient is 0.60 to 0.80. In addition, the winding is a three-phase symmetrical non-equidistant winding, and an air gap between the permanent magnet and the outer circumference of the stator iron core is in a non-uniform state. By means of the configuration above, the present invention reduces the static torque of a power generator, simplifies a manufacturing process, increases utilization of magnetic energy, lowers costs, enhances structural rigidity, extends a service life, and improves reliability.
Inventors:
ZHANG DAPENG (CN)
Application Number:
PCT/CN2016/000112
Publication Date:
July 20, 2017
Filing Date:
March 07, 2016
Export Citation:
Assignee:
ZHANG DAPENG (CN)
International Classes:
H02K1/16; H02K1/27; H02K3/50; H02K5/16
Foreign References:
| CN202918162U | 2013-05-01 | |||
| CN103401331A | 2013-11-20 | |||
| CN102969857A | 2013-03-13 | |||
| US20040090136A1 | 2004-05-13 |
Attorney, Agent or Firm:
SUZHOU MINGHAO INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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