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公开(公告)号：US20160329791A1
公开(公告)日：2016-11-10
申请号：US15148810
申请日：2016-05-06
Applicant: Johnson Electric S.A.
CPC classification number: H02K21/22 , H02K1/146 , H02K1/2786 , H02K3/18 , H02K15/022 , H02K15/095 , H02K2213/03
Abstract: A single-phase outer-rotor motor and a stator thereof are provided. The stator includes a stator core having a yoke and a number of teeth. Each tooth includes a tooth body and a toot tip. A winding slot is formed between each two adjacent tooth bodies. A slot opening is formed between each two adjacent tooth tips. The tooth tip protrudes beyond the tooth body. Inner surfaces of at least part of the tooth tips facing the stator are formed with cutting grooves such that a portion of the tooth tip outside the cutting groove is capable of being tilted outwardly to enlarge the slot opening and deformed inwardly to narrow the slot opening.
Abstract translation: 提供单相外转子电动机及其定子。 定子包括具有轭和多个齿的定子芯。 每个牙齿包括一个牙体和一个齿尖。 在每个两个相邻的齿体之间形成一个卷绕槽。 在每个相邻的两个齿尖之间形成槽口。 齿尖突出超出牙体。 至少部分齿顶的面向定子的内表面形成有切割槽，使得切削槽外侧的齿尖的一部分能够向外倾斜以扩大槽开口并向内变形以使狭槽开口变窄。
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2.发明申请公开(公告)号：US20160329793A1
公开(公告)日：2016-11-10
申请号：US15148865
申请日：2016-05-06
Applicant: Johnson Electric S.A.
IPC: H02K21/22 , H02K1/27 , H02K1/28 , H02K3/32 , D06F58/28 , B60H1/00 , F04D29/28 , F04D29/32 , F04D25/06 , D06F37/30 , H02K1/14 , H02K3/18
CPC classification number: H02K21/22 , B60H1/00428 , D06F37/304 , D06F58/28 , D06F2058/2877 , F04D25/06 , F04D29/281 , F04D29/325 , H02K1/06 , H02K1/146 , H02K1/2786 , H02K1/28 , H02K3/18 , H02K3/325 , H02K29/03 , H02K2201/03 , H02K2213/03
Abstract: A single-phase outer-rotor motor includes a stator and a rotor. The stator includes a stator core with windings wound thereon. The stator core includes a yoke and multiple teeth each including a tooth body and a tooth tip. The rotor includes a rotor yoke and a permanent magnet forming a plurality of magnetic poles facing the tooth tips of the stator core. The magnetic poles and the tooth tips define a gap there between. When the motor is de-energized, the rotor is capable of being positioned at an initial position by a leakage magnetic field generated by the permanent magnet acting with the tooth tips of the stator core.
Abstract translation: 单相外转子电动机包括定子和转子。 定子包括具有缠绕在其上的绕组的定子芯。 定子铁芯包括轭和多个齿，每个齿包括齿体和齿尖。 转子包括转子轭和形成面对定子芯的齿尖的多个磁极的永磁体。 磁极和齿尖之间形成一个间隙。 当电动机断电时，转子能够通过由与定子铁芯的齿顶作用的永磁体产生的泄漏磁场而位于初始位置。
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公开(公告)号：US20160294266A1
公开(公告)日：2016-10-06
申请号：US15084193
申请日：2016-03-29
Applicant: Johnson Electric S.A.
Inventor： Yue LI , Chui You Andreas ZHOU , Yong WANG , Yong LI
CPC classification number: H02K19/04 , H02K1/143 , H02K1/272 , H02K7/083 , H02K11/21 , H02K21/185 , H02K29/03 , H02K29/08
Abstract: A single-phase brushless motor includes a stator, a rotor disposed within the stator, and sensors disposed around an outer periphery of the rotor. The stator includes a stator core made of a magnetic-conductive material, and a stator winding wound around the stator core. The rotor includes a rotary shaft and a pair of permanent magnetic poles. The stator core includes a pair of stator poles forming a receiving hole there between, and the rotor is disposed in the receiving hole. The inner circumferential surface of the receiving hole is located on a cylindrical surface which is coaxial with the rotary shaft and two locating slots which are symmetrical with respect to a center of the receiving hole are defined in the inner circumferential surface of the receiving hole, which can improve the distribution of magnetic flux, effectively reduce cogging torque, and increase operation efficiency.
Abstract translation: 单相无刷电动机包括定子，设置在定子内的转子和设置在转子的外周周围的传感器。 定子包括由导电材料制成的定子铁心和缠绕在定子铁芯上的定子绕组。 转子包括旋转轴和一对永久磁极。 定子铁芯包括一对在其间形成接收孔的定子极，转子设置在接收孔中。 容纳孔的内周面位于与旋转轴同轴的圆筒面上，在容纳孔的内周面形成有相对于容纳孔的中心对称的两个定位槽， 可以提高磁通分布，有效减少齿槽转矩，提高运行效率。
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