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公开(公告)号：US10461618B2
公开(公告)日：2019-10-29
申请号：US15007720
申请日：2016-01-27
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Chui You Zhou , Gang Li , Yong Wang , Yong Li , Hong Wei Zhang
IPC: H02K23/40 , H02K5/14 , H02K5/15 , H02K11/40 , H02K11/215
Abstract: A PMDC motor has a housing, a stator magnet disposed in an interior of the housing, and a rotor core disposed within the stator magnet. A ratio of an outer diameter of the rotor core to the outer diameter of the housing is from 0.60 to 0.67. The noise of the motor during operation is reduced by increasing the thickness of the stator magnet, reducing the outer diameter of the rotor core, reducing the air gap between the magnet and the rotor core and reducing the rotational inertia of the rotor core. The motor is particularly suited for use in vehicle HVAC systems where low noise is an important requirement.
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公开(公告)号：US20170063184A1
公开(公告)日：2017-03-02
申请号：US15243067
申请日：2016-08-22
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Chui You Zhou , Yong Wang , Yong Li
CPC classification number: H02K21/14 , H02K1/14 , H02K1/2706 , H02K29/03
Abstract: A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer yoke, teeth extending inwardly from the outer yoke, and pole shoes extending from inner ends of the teeth. The rotor is received in a space cooperatively defined by the pole shoes. The rotor includes circumferentially arranged permanent magnetic poles. An outer circumferential surface of the permanent magnetic poles is concentric with an inner circumferential surface of the pole shoes, such that a uniform air gap is formed between the pole shoes and magnetic poles. The single phase permanent magnet motor forms the uniform air gap, which reduces the vibration and noise. The pole shoes form invisible positioning slots, which avoids the negative effect of the positioning slots to the thickness of the air gap and reduces the startup dead point.
Abstract translation: 单相永磁电动机包括定子和转子。 定子包括定子芯和定子绕组。 定子铁芯包括外轭铁，从外磁轭向内延伸的齿，以及从齿的内端延伸的极靴。 转子被接收在由极靴协同定义的空间中。 转子包括周向布置的永久磁极。 永久磁极的外周面与极靴的内周面同心，使得在极靴和磁极之间形成均匀的气隙。 单相永磁电动机形成均匀的气隙，减少了振动和噪音。 极靴形成不可见的定位槽，避免了定位槽对气隙厚度的负面影响，并减少了起动死点。
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公开(公告)号：US20160365757A1
公开(公告)日：2016-12-15
申请号：US15249207
申请日：2016-08-26
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Chui You Zhou , Yong Wang , Yong Li
Abstract: A single phase motor includes a rotor including magnetic poles and a stator comprising a stator core and a winding wound on the stator core. The stator core includes a plurality of stator teeth each including a tooth body and a tooth end formed at an end of the tooth body, the tooth end comprising first and second arcuate regions facing the rotor. When the winding is not energized, a first magnetic coupling between said first arcuate region and a selected magnetic pole of said rotor is greater than a second magnetic coupling between said second arcuate region and the selected magnetic pole, said first arcuate region being offset from a selected tooth body in such a way as to enable movement of said rotor to initiate in either of two opposite directions relative to said selected tooth body upon energizing the winding.
Abstract translation: 单相电动机包括包括磁极的转子和包括定子铁心和缠绕在定子铁芯上的绕组的定子。 定子芯包括多个定子齿，每个定子齿包括形成在齿体端部的齿体和齿端，该齿端包括面向转子的第一和第二弧形区域。 当绕组不通电时，所述第一弧形区域和所述转子的选定磁极之间的第一磁耦合大于所述第二弧形区域和所选择的磁极之间的第二磁耦合，所述第一弧形区域偏离 所述选择的齿体以使得所述转子能够在对所述绕组通电时相对于所述选定的齿体在两个相反的方向中的任一个中起动。
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Patent Agency Ranking
公开(公告)号：US20160344271A1
公开(公告)日：2016-11-24
申请号：US15160174
申请日：2016-05-20
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Chui You Zhou , Gang Li , Yong Wang , Yong Li , Wei Zhang , Ming Chen , Jie Chai , Hong Liang Yi , Tao Zhang
CPC classification number: H02K21/025 , B60J1/20 , H02K1/14 , H02K1/143 , H02K1/146 , H02K1/2706 , H02K29/03 , H02K2201/03 , H02K2213/03
Abstract: A single phase brushless motor and a power tool and a car window lifer employing the motor are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and teeth extending inward from the yoke. The tooth includes a tooth tip. The tooth tip includes a first pole shoe and a second pole shoe. The tooth tip forms a positioning groove facing the rotor between the first and second pole shoes. The rotor is received in a space defined between the first and second pole shoes. The rotor comprises multiple permanent magnetic poles arranged in a circumferential direction of the rotor. The first and second pole shoes are symmetrical about a central line of the tooth body, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction.
Abstract translation: 提供单相无刷电动机和电动工具以及采用电动机的车窗升降器。 电动机包括定子和转子。 定子包括定子铁芯和绕组。 定子铁芯包括一个磁轭和从磁轭向内延伸的齿。 牙齿包括齿尖。 齿尖包括第一极靴和第二极靴。 齿尖在第一和第二极靴之间形成面向转子的定位槽。 转子被容纳在限定在第一和第二极靴之间的空间中。 转子包括沿转子的圆周方向布置的多个永久磁极。 第一和第二极靴关于齿体的中心线对称，使得一个方向上的转子启动能力大于在相反方向上的转子启动能力。
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公开(公告)号：US20160344244A1
公开(公告)日：2016-11-24
申请号：US15160494
申请日：2016-05-20
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Chui You Zhou , Gang Li , Yong Wang , Yong Li , Wei Zhang , Ming Chen , Jie Chai , Tao Zhang , Jun Jie Chu , Xiao Bing Zuo
IPC: H02K1/14 , E05F15/697 , H02K11/33 , H02K1/27 , H02K7/14
CPC classification number: H02K1/14 , E05F15/697 , H02K1/146 , H02K1/276 , H02K7/14 , H02K11/33 , H02K29/03 , H02K2213/03 , H02P1/465
Abstract: A single phase brushless motor and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The rotor is received in a space defined between the first pole shoes and the second pole shoes. Each tooth forms a positioning groove facing the rotor between the first pole shoe and the second pole shoe. The first and second pole shoes are symmetrical about a central line of the tooth body and the positioning groove deviates toward the first pole shoe, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction. The single phase motor has a larger startup torque with enhanced startup capability.
Abstract translation: 提供单相无刷电动机和电气设备。 电动机包括定子和转子。 定子包括定子铁芯和绕组。 定子芯包括轭和至少两个齿。 牙齿包括牙体和牙齿尖端。 齿尖包括第一和第二极靴。 转子被容纳在第一极靴和第二极靴之间限定的空间中。 每个齿形成面向第一极靴和第二极靴之间的转子的定位槽。 第一和第二极靴关于齿体的中心线对称，并且定位槽朝向第一极靴偏离，使得一个方向上的转子启动能力大于相反方向上的转子启动能力。 单相电机具有较大的起动转矩，启动能力增强。
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公开(公告)号：US10516324B2
公开(公告)日：2019-12-24
申请号：US15291476
申请日：2016-10-12
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Chui You Zhou , Yong Wang , Yong Li
Abstract: A step motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring shaped yoke and a plurality of teeth extending inwardly from the ring shaped yoke. The rotor is rotatably mounted with respect to the stator. The rotor includes a permanent magnet member surrounded by the plurality of teeth. The stator windings are wound around the plurality of teeth to form a plurality of stator poles. The stator core are formed from a core strip with High magnetic conductive, the core strip are bent to enable opposite ends of the core strip to be connected with each other. The step motor of the present invention has a simplified structure and enhanced efficiency.
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公开(公告)号：US10199886B2
公开(公告)日：2019-02-05
申请号：US15254379
申请日：2016-09-01
Applicant: Johnson Electric S.A.
Inventor： Yue Li , Tao Zhang , Chui You Zhou , Jie Chai , Jun Jie Chu , Xiao Bing Zuo , Yong Wang , Yong Li
Abstract: A single phase brushless motor and a power tool are provided. The single phase brushless motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The two pole shoes of each tooth are symmetrical about a center line of the tooth body. Each tooth defines a positioning groove facing the rotor between the two pole shoes. Pole shoes of adjacent two of the at least two teeth are spaced apart by a slot opening. A width of the positioning groove is greater than a width of the slot opening. The peak value of the cogging torque of the motor is increased, and the motor has a large startup torque.
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公开(公告)号：US10110102B2
公开(公告)日：2018-10-23
申请号：US14965303
申请日：2015-12-10
Applicant: JOHNSON ELECTRIC S.A.
Abstract: A single phase brushless motor includes a stator and a rotor. The stator includes a stator core and stator windings wound on the stator core. The stator core includes a yoke portion, and first and second pole portions extending inwardly from the yoke portion. An end surface of the first pole portion includes a first arc surface having a first groove. An end surface of the second pole portion includes a second arc surface having a second groove. The first and second arc surfaces are opposed to each other and define a receiving space therebetween. The rotor includes a rotary shaft and permanent magnetic poles fixed to the rotary shaft. The permanent magnetic poles are received in the receiving space. A substantially uniform gap is formed between the first arc surface and the second arc surface and the permanent magnetic poles.
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