公开(公告)号：US20170101996A1

公开(公告)日：2017-04-13

申请号：US15288589

申请日：2016-10-07

Applicant: Johnson Electric S.A.

Inventor： Qiang ZHOU ,  Jing LI ,  Jie CHAI ,  Tao ZHANG ,  Ka Lung NG ,  Yuk Tung LO ,  Hai Bo MA

IPC: F04D25/06 ,  H02P6/16 ,  F04D27/00 ,  H02P6/08

CPC classification number: F04D25/0606 ,  A45D20/12 ,  A45D20/30 ,  F04D27/00 ,  H02K7/145 ,  H02K29/03 ,  H02K29/08 ,  H02K2213/03 ,  H02P6/08 ,  H02P6/085 ,  H02P6/16 ,  H02P6/26

Abstract: An air flow regulating device includes a housing, an air supply unit and a circuit board which are arranged inside the housing. The air supply unit includes an impeller and a single-phase permanent magnet brushless motor configured to drive the impeller. The single-phase permanent magnet brushless motor includes a stator and a rotor which can rotate relative to the stator. The stator includes a stator core and a single-phase winding wound around the stator core. The rotor includes a shaft and a permanent magnet fixed to the shaft. Numbers of magnetic poles of the stator and the rotor are the same and not greater than six. An outer diameter of the stator core is less than 35 mm and/or an axial thickness of the stator core is between 10 mm and 20 mm.

公开(公告)号：US20170063179A1

公开(公告)日：2017-03-02

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

IPC: H02K1/14 ,  H02K7/14 ,  H02K1/27

CPC classification number: H02K1/146 ,  H02K1/2726 ,  H02K1/276 ,  H02K1/278 ,  H02K7/145 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

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.

Abstract translation: 提供单相无刷电机和电动工具。 单相无刷电动机包括定子和转子。 定子包括定子芯和围绕定子芯缠绕的绕组。 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。 每个齿的两个极靴与牙体的中心线对称。 每个齿在两个极靴之间限定面向转子的定位槽。 所述至少两个齿中相邻的两个齿的极靴通过槽口间隔开。 定位槽的宽度大于槽口的宽度。 马达的齿槽转矩的峰值增加，马达起动转矩大。

公开(公告)号：US20170054353A1

公开(公告)日：2017-02-23

申请号：US15240343

申请日：2016-08-18

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Jing Ning TA ,  Chui You ZHOU ,  Qiu Mei LI ,  Yong WANG ,  Ming CHEN ,  Hong Liang YI ,  Tao ZHANG ,  Kwong Yip POON ,  Jie CHAI ,  Wen Liang LI ,  Lin Ping GUI

IPC: H02K19/04 ,  H02K1/27 ,  H02K1/14

CPC classification number: H02K1/148 ,  H02K21/16

Abstract: A power tool includes a main body and a working portion. The working portion is rotatably coupled to the main body. A single phase brushless motor is mounted in the main body to drive the working portion to rotate bidirectionally. In comparison with a traditional motor, the single phase brushless motor make the power tool has a reduced size and reduced cost while ensuring the stable performance.

Abstract translation: 电动工具包括主体和工作部分。 工作部分可旋转地联接到主体。 单相无刷电动机安装在主体中以驱动工作部分双向旋转。 与传统电机相比，单相无刷电机使电动工具尺寸减小，成本降低，同时确保性能稳定。

公开(公告)号：US20150280535A1

公开(公告)日：2015-10-01

申请号：US14658897

申请日：2015-03-16

Applicant: Johnson Electric S.A.

Inventor： Bo YANG ,  Gang LIU ,  Tao ZHANG ,  San Yuan XIAO ,  Wai Chiu TANG

IPC: H02K21/14 ,  H02K1/16

CPC classification number: H02K21/14 ,  H02K1/146 ,  H02K1/165 ,  H02K1/2733 ,  H02K1/278 ,  H02K29/03 ,  H02K2213/03

Abstract: A permanent magnet brushless motor has a stator and a rotor. The stator has a yoke and s teeth extending from the yoke, forming a stator core, where s is an integer greater than four. Coils of a stator winding are wound about the teeth. The rotor has a shaft, a rotor core fixed to the shaft and a permanent magnet mounted to the rotor core. The permanent magnet forms p magnetic poles, where p is an even number greater than 2 but less than s. Each section of the permanent magnet corresponding to a respective magnetic pole is divided into n equal parts by n−1 magnet grooves, where n is an integer greater than 1 and p*n is an integral multiple of s. The magnet grooves significantly increase the detent torque of the motor.

Abstract translation: 永磁无刷电动机具有定子和转子。 定子具有从轭架延伸的轭和齿，形成定子芯，其中s是大于4的整数。 定子绕组的线圈围绕齿缠绕。 转子具有轴，固定到轴的转子芯和安装到转子芯上的永磁体。 永磁体形成p个磁极，其中p是大于2但小于s的偶数。 对应于相应磁极的永磁体的每个部分被n-1个磁体槽划分成n个相等的部分，其中n是大于1的整数，p * n是s的整数倍。 磁体槽显着增加了电机的制动力矩。

公开(公告)号：US20170055669A1

公开(公告)日：2017-03-02

申请号：US15246994

申请日：2016-08-25

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Jie CHAI ,  Tao ZHANG ,  Qiang ZHOU

IPC: A45D20/12 ,  H02K19/04 ,  H02K1/27 ,  H02K3/12 ,  H02K1/14 ,  H02K1/16

CPC classification number: A45D20/12 ,  H02K1/14 ,  H02K1/145 ,  H02K1/148 ,  H02K1/16 ,  H02K1/2706 ,  H02K1/278 ,  H02K3/12 ,  H02K19/04 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/03

Abstract: A single phase motor and a hair dryer are provided. The motor includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer ring portion, teeth extending inwardly from the outer ring portion, and two pole shoes extending from a distal end of each tooth. A winding slot is formed between each two adjacent teeth. A slot opening is disposed between the pole shoes of the adjacent teeth, and is offset from one of the two adjacent teeth. The air supplying unit includes the single phase motor and an impeller. The startup angle and cogging torque of the motor are adjustable by adjusting the position/width of the slot opening, without the need of additional positioning slots or positioning holes defined at the pole shoes, which makes the motor structure simple.

Abstract translation: 提供单相电机和吹风机。 电动机包括定子和转子。 定子包括定子芯和定子绕组。 定子铁芯包括外环部分，从外环部分向内延伸的齿，以及从每个齿的远端延伸的两个极靴。 每个两个相邻的齿之间形成一个绕线槽。 狭槽开口设置在相邻齿的极靴之间，并且从两个相邻齿中的一个偏移。 空气供给单元包括单相电动机和叶轮。 电动机的起动角度和齿槽转矩可通过调节槽口的位置/宽度来调节，而不需要额外的定位槽或定位在极靴处的定位孔，这使得电机结构简单。

公开(公告)号：US20150375824A1

公开(公告)日：2015-12-31

申请号：US14755431

申请日：2015-06-30

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Jie CHAI ,  Jing Ning TA ,  Hong Yu DING ,  Tao ZHANG ,  Chui You ZHOU

IPC: B62M6/65 ,  H02K7/14 ,  H02K11/00 ,  H02K5/04

CPC classification number: H02K7/116 ,  B62M6/60 ,  B62M6/65 ,  H02K7/14 ,  H02K16/00 ,  Y02T10/641

Abstract: A drive apparatus for an electric bike includes a hollow housing body, an internal ring gear fixed to the housing body, and a main shaft. At least two motor units are mounted in the housing body. Each motor unit includes a support bracket and a number of motors mounted on the support bracket. Each motor drives the internal gear through a transmission mechanism to rotate the housing body about the main shaft. The motors share one controller. Peaks of the motor cogging torque can be staggered.

Abstract translation: 电动自行车的驱动装置包括中空的壳体，固定到壳体的内齿圈和主轴。 至少两个电机单元安装在壳体中。 每个电动机单元包括支撑支架和安装在支撑支架上的多个电动机。 每个电动机通过传动机构驱动内齿轮，以使壳体绕主轴旋转。 电机共用一个控制器。 电机齿槽转矩的峰值可以交错。

公开(公告)号：US20140363314A1

公开(公告)日：2014-12-11

申请号：US14466392

申请日：2014-08-22

Applicant: Johnson Electric S.A.

Inventor： Mao Xiong JIANG ,  Yue LI ,  Tao ZHANG ,  San Yuan XIAO ,  Lik Hon CHAN

IPC: H02K1/27 ,  F04F5/46 ,  F04F5/16

CPC classification number: H02K1/278 ,  F04F5/16 ,  F04F5/46 ,  H02K2201/06 ,  Y10T137/2224

Abstract: A brushless motor includes a stator comprising a stator core with teeth protruding inwardly and windings wound on the teeth, and a rotor comprising a shaft, a rotor core fixed to the shaft, and a ring magnet fixed to the circumferential outer surface of the rotor core. The ring magnet includes a plurality of magnetic poles radially magnetized so that north poles and south poles are arranged alternately in the circumferential direction, boundary lines between adjacent magnetic poles being skewed by an angle α relative to an axis of the shaft. A plurality of grooves are formed in a circumferential outer surface of the rotor core. Each groove extends from one axial end to the other axial end of the rotor core, has a circumferential width smaller than each of the magnetic poles, and is covered by the ring magnet with a void formed between the groove and the ring magnet.

Abstract translation: 一种无刷电动机，包括定子，该定子包括具有向内突出的齿的定子芯和缠绕在所述齿上的绕组，以及转子，包括轴，固定到所述轴的转子芯和固定到所述转子芯的周向外表面的环形磁体 。 环形磁铁包括多个径向磁化的磁极，使得北极和南极在周向上交替布置，相邻磁极之间的边界线相对于轴的轴线倾斜角度α。 在转子铁芯的周向外表面上形成有多个槽。 每个槽从转子芯的一个轴向端部延伸到另一个轴向端部，其周向宽度小于每个磁极，并且被环形磁体覆盖，并且在凹槽和环形磁体之间形成空隙。