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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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公开(公告)号：USD800658S1
公开(公告)日：2017-10-24
申请号：US29564360
申请日：2016-05-12
Applicant: Johnson Electric S.A.
Designer： Yue Li , Chui You Zhou , Gang Li , Yong Wang , Yong Li
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Patent Agency Ranking
公开(公告)号：US10566855B2
公开(公告)日：2020-02-18
申请号：US15611157
申请日：2017-06-01
Applicant: Johnson Electric S.A.
Inventor： Yue Li , James Ching Sik Lau , Chui You Zhou , Gang Li , Xiao Ning Zhu , Ya Ming Zhang , Yong Gang Zhang
Abstract: A PMDC motor includes a housing, a stator magnet fixed to the inner circumferential surface of the housing, a rotor core received in the housing and facing the stator magnet, and rotor windings wound around the rotor core. The rotor core includes a plurality of rotor teeth, each of the rotor teeth including a tooth body and a tooth tip. A ratio of the outer diameter of the rotor core to an outer diameter of the housing is in the range of 0.6 to 0.67. Compared to the existing PMDC motor, the PMDC motor of the present invention can satisfy the same performance requirement, while reducing the size and weight of the rotor core and hence the weight of the rotor windings. In this way, the total weight and hence the moment of inertia of the rotor is reduced, thereby effectively reducing the noise generated during operation of the motor.
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4.发明申请公开(公告)号：US20160341219A1
公开(公告)日：2016-11-24
申请号：US15160225
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 , Kwong Yip Poon , Wen Liang Li , Lin Ping Gui
IPC: F04D29/66 , H02K1/27 , H02K5/16 , F04D17/16 , A47L5/12 , F04D29/28 , F04D29/44 , F04D29/42 , A45D20/00 , A47K10/48 , H02K1/14 , F04D25/06
CPC classification number: F04D29/661 , A45D20/00 , A47K10/48 , A47L9/0081 , F04D17/16 , F04D25/06 , F04D29/281 , F04D29/4226 , F04D29/441 , H02K1/148 , H02K7/14 , H02K29/03 , H02K2213/03
Abstract: A single-phase motor, an airflow generating apparatus, and an electric apparatus are provided. The 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 multiple pole portions. A magnetic bridge or slot opening is formed between each two adjacent pole portions. An end surface of each pole portion includes an arc surface. A positioning groove is formed in each arc surface. The arc surfaces of the pole portions cooperatively form a receiving cavity. The rotor includes a rotary shaft and a permanent magnet fixed to the rotary shaft. The permanent magnet is received in the receiving cavity. The arc surfaces are located on a cylindrical surface centered around a rotation axis of the rotary shaft. The cogging torque of the motor can be reduced, thus reducing the startup current and hence the noise of the motor.
Abstract translation: 提供单相电动机，气流发生装置和电气设备。 电动机包括定子和转子。 定子包括定子铁心和定子绕组。 定子铁芯包括环形磁轭和多极部分。 在每个两个相邻的极部之间形成磁桥或槽开口。 每个极部分的端面包括弧形表面。 在每个弧形表面上形成定位槽。 极部分的弧形表面协同地形成接收腔。 转子包括旋转轴和固定到旋转轴的永磁体。 永磁体被容纳在接收腔中。 弧形表面位于围绕旋转轴的旋转轴线居中的圆柱形表面上。 可以减小电动机的齿槽转矩，从而降低启动电流，从而降低电机的噪音。
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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：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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