公开(公告)号：US20180342912A1

公开(公告)日：2018-11-29

申请号：US15972258

申请日：2018-05-07

申请人： Nidec Corporation

发明人： Yuya HORII ,  Kohei KURAZONO

IPC分类号： H02K1/14 ,  H02K5/167 ,  H02K21/22 ,  F16C17/10 ,  F16C33/08

CPC分类号： H02K1/14 ,  F16C17/107 ,  F16C33/08 ,  F16C2380/26 ,  H02K1/187 ,  H02K5/1675 ,  H02K7/086 ,  H02K15/022 ,  H02K15/14 ,  H02K21/22 ,  H02K21/227

摘要： A motor includes a bearing housing and a stator. The stator includes a stator core, an insulator, and a conductor. The insulator is an insulating body covering at least a part of the stator core. The conductor is wound around the stator core via the insulator. The bearing housing includes a first inner peripheral surface and a first outer peripheral surface. The first inner peripheral surface holds a bearing. The first outer peripheral surface is in contact with the insulator directly or via an adhesive. A surface roughness of the first outer peripheral surface is greater than a surface roughness of the first inner peripheral surface. Therefore, a friction coefficient between the first outer peripheral surface and the insulator increases. Therefore, it is possible to suppress position deviation of the stator with respect to the bearing housing.

公开(公告)号：US09893587B2

公开(公告)日：2018-02-13

申请号：US14951834

申请日：2015-11-25

申请人： Hangzhou Sanhua Research Institute Co., Ltd.

发明人： Chuliang Shi ,  Junchao Zhang ,  Rongrong Zhang

IPC分类号： H02K5/128 ,  F04D13/06 ,  H02K5/167

CPC分类号： H02K5/128 ,  F04D13/0633 ,  F04D13/0673 ,  H02K5/1675 ,  H02K2005/1287

摘要： An electronic pump includes a second housing, a rotor part, a stator part and a circuit board. A pump chamber is separated by a partition into a wet chamber allowing a working medium to pass through and at least one dry chamber where there is no working medium passing through, and the rotor part is arranged in the wet chamber. The electronic pump further includes a shaft, a sunken portion is formed at a top portion of the partition, and the shaft and a bottom of the sunken portion are fixed by injection molding. A portion where the rotor part is in contact with the shaft is a cooperation portion of the rotor part, and the cooperation portion is arranged in a cavity of the sunken portion.

公开(公告)号：US09876410B2

公开(公告)日：2018-01-23

申请号：US14772993

申请日：2014-03-13

申请人： Dipl.-Ing. Thomas Sauer

发明人： Dipl.-Ing. Thomas Sauer

IPC分类号： H02K11/00 ,  H02K5/16 ,  G01R31/34 ,  H02K5/167 ,  H02K5/24 ,  H02K11/20 ,  H02K11/33

CPC分类号： H02K5/161 ,  G01R31/343 ,  H02K5/1675 ,  H02K5/24 ,  H02K11/20 ,  H02K11/33

摘要： The present invention relates to an electric motor, comprising a stator and a rotor that can rotate relative to the stator and that is mounted in bearing arrangements, and also comprising a motor housing and a vibration sensor to pick up vibrations that occur in the electric motor and that are caused by malfunctions of the bearing arrangements. The configuration provided here is that of an external-rotor motor. The stator has a bearing support tube that is connected at one end to a ring-shaped stator flange. Bearing arrangements are arranged at a distance from each other in the bearing support tube in the direction of a center longitudinal axis of the bearing support tube, in which a shaft of the rotor is supported. The vibration sensor is attached to the stator flange.

公开(公告)号：US09799368B2

公开(公告)日：2017-10-24

申请号：US14874590

申请日：2015-10-05

申请人： Minebea Co., Ltd.

发明人： Thomas Fuss ,  Tobias Kirchmeier ,  Oliver Vogt

IPC分类号： F16C32/06 ,  G11B19/20 ,  F16C33/74 ,  F16C33/10 ,  H02K5/167

CPC分类号： G11B19/2036 ,  F16C33/107 ,  F16C33/1085 ,  F16C33/743 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/1675

摘要： A fluid-dynamic bearing system comprising a stationary bearing component (12, 16, 18) and a bearing component (14, 14a) rotatable about a rotation axis, wherein, during operation of the bearing, the stationary and rotary components are separated from each other by a bearing gap (20) filled with a bearing fluid, wherein at least one fluid-dynamic radial bearing (22, 24) and at least one fluid-dynamic thrust bearing (28) or, alternatively, at least one conical fluid-dynamic bearing are arranged along the bearing gap (20), and wherein the bearing gap (20) comprises first and second open ends sealed by a first sealing gap (34) and a second sealing gap (36). The second sealing gap (36) exclusively extends normal to the rotation axis (40).

公开(公告)号：US09685840B2

公开(公告)日：2017-06-20

申请号：US14135299

申请日：2013-12-19

申请人： Fisher & Paykel Appliances Limited

发明人： Timothy Scott Germann ,  Gerald David Duncan ,  Gregory Paul Hill

IPC分类号： H02K5/16 ,  H02K7/08 ,  H02K1/27 ,  H02K1/30 ,  H02K3/52 ,  F04D25/06 ,  F04D17/04 ,  H02K1/18 ,  H02K5/167 ,  H02K5/173 ,  H02K21/22 ,  H02K7/14

CPC分类号： H02K7/085 ,  F04D17/04 ,  F04D25/062 ,  F04D25/064 ,  F04D25/0646 ,  H02K1/187 ,  H02K1/2786 ,  H02K1/30 ,  H02K3/522 ,  H02K5/1675 ,  H02K5/1735 ,  H02K7/14 ,  H02K21/22 ,  H02K2203/12

摘要： A BLDC motor for driving a cross flow fan in an air-conditioning application has an external rotor and an internal stator. The stator is a salient pole stator with insulated pole teeth and conductor coils. The inner diameter of the stator supports a single bearing. An electronic PCBA for control of the BLDC motor is optionally attached to the stator, all of which is encapsulated in a thermoset resin. The rotor comprises permanent magnet component(s) and a rotor frame. The rotor frame includes a stub axle that engages with the bearing element and features to provide torsional or rotational compliance between the rotor magnets and the fan. A level of compliance is provided between the bearing element and the stator to allow for angular misalignment between the rotational axis of the fan and the stator.

公开(公告)号：US20170167537A1

公开(公告)日：2017-06-15

申请号：US15287029

申请日：2016-10-06

申请人： Tokyo Parts Industrial Co., Ltd.

发明人： Masahisa TUCHIYA

IPC分类号： F16C33/12 ,  H02K5/167 ,  F16C17/10

CPC分类号： F16C33/128 ,  F16C17/107 ,  F16C33/104 ,  F16C2226/12 ,  F16C2380/26 ,  H02K5/1675

摘要： A double bearing comprising an inner bearing and an outer bearing, which has a greater oil content than the inner bearing, is used as a bearing for a brushless motor. The inner bearing has an upper bearing part, a lower bearing part, and a central relief part. Gaps are provided between the bearing parts and a bearing housing, along the entire axial length of all of the bearing parts of the inner bearing.

公开(公告)号：US09618000B2

公开(公告)日：2017-04-11

申请号：US14314871

申请日：2014-06-25

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Hark Koo Kim ,  Seung Yong Lee ,  Chi Myung Kim ,  Yeon Seok Jung ,  Kyung Yub Kim ,  Chang Gook Lee

IPC分类号： F04D29/04 ,  H02K5/128 ,  H02K5/167 ,  F04D13/06 ,  F04D29/041 ,  F04D29/047

CPC分类号： F04D13/0633 ,  F04D29/0413 ,  F04D29/0473 ,  H02K5/128 ,  H02K5/1675

摘要： A canned motor pump is provided that includes a rotor of a motor and a shaft shaped as a bar. The shaft penetrates through and is coupled with the rotor. A bearing is shaped as a circular cylinder, and is coupled to an upper side of the rotor. Further, the shaft penetrates through the bearing. A housing surrounds the rotor and the bearing to expose an upper end of the bearing and to house the rotor and the bearing within the housing.

公开(公告)号：US20160352180A1

公开(公告)日：2016-12-01

申请号：US14724788

申请日：2015-05-28

申请人： ASIA VITAL COMPONENTS CO., LTD.

发明人： Meng Shen

IPC分类号： H02K5/167 ,  H02K7/14

CPC分类号： H02K5/1675 ,  H02K5/1672

摘要： A fan bearing cup connection structure includes a bearing cup, a bottom board and a connection member. The bearing cup has a receiving space, a connected section and a shaft hole. The shaft hole is formed at a top end of the bearing cup in communication with the receiving space. The connected section is disposed on outer circumference of the other end of the bearing cup opposite to the shaft hole. The bottom board has an opening. The connected section of the bearing cup is disposed in the opening. The connection member is connected between the bearing cup and the bottom board by means of injection molding. By means of the connection member, the bearing cup and the bottom board can be more securely connected with each other to greatly enhance the concentricity of the bearing cup and the bottom board.

摘要翻译： 风扇轴承杯连接结构包括轴承杯，底板和连接件。 轴承杯具有接收空间，连接部分和轴孔。 轴孔形成在与接收空间连通的轴承杯的顶端。 连接部设置在与轴孔相反的轴承杯的另一端的外周。 底板有一个开口。 轴承杯的连接部分设置在开口中。 连接构件通过注射成型连接在轴承杯和底板之间。 通过连接构件，轴承杯和底板可以彼此更牢固地连接，以大大提高轴承杯和底板的同心度。

公开(公告)号：US09341192B2

公开(公告)日：2016-05-17

申请号：US14061682

申请日：2013-10-23

申请人： Apple Inc.

发明人： Anthony Joseph Aiello ,  Jesse T. Dybenko ,  Brett W. Degner

IPC分类号： F04D29/051 ,  G06F1/20 ,  F04D25/06 ,  F04D29/30 ,  F04D17/16 ,  F04D29/28 ,  F04D29/66 ,  H02K5/167 ,  H02K7/14 ,  F16C17/10 ,  F16C17/04 ,  H02K21/22 ,  H02K7/09

CPC分类号： F04D29/051 ,  F04D17/16 ,  F04D25/062 ,  F04D29/0513 ,  F04D29/281 ,  F04D29/30 ,  F04D29/668 ,  F16C17/045 ,  F16C17/107 ,  F16C2360/46 ,  G06F1/20 ,  G06F1/203 ,  H02K5/1675 ,  H02K7/09 ,  H02K7/14 ,  H02K21/22 ,  H02K2205/03

摘要： A fan assembly for a computing device is disclosed. The fan assembly can include an impeller having a number of blades and a motor for turning the blades. The motor can turn the blades via a magnetic interaction between the impeller and the motor. A fluid dynamic thrust bearing can be used to control a position of the impeller relative to the motor. In particular, the impeller can be configured to rotate around an axis and the thrust bearing can be used to control movement of the impeller in a direction aligned with the rotational axis. In one embodiment, the thrust bearing can be configured to stabilize the impeller when vibratory forces act upon the fan assembly. More particularly, parameters associated with the thrust bearing can be selected to counteract vibratory forces emitted by a speaker system.

摘要翻译： 公开了一种用于计算设备的风扇组件。 风扇组件可以包括具有多个叶片的叶轮和用于转动叶片的马达。 电机可以通过叶轮和电机之间的磁性相互作用来转动叶片。 流体动力推力轴承可用于控制叶轮相对于马达的位置。 特别地，叶轮可以构造成围绕轴线旋转，并且推力轴承可用于控制叶轮在与旋转轴线对准的方向上的运动。 在一个实施例中，推力轴承可以构造成当振动力作用在风扇组件上时稳定叶轮。 更具体地，可以选择与推力轴承相关联的参数以抵消由扬声器系统发射的振动力。

公开(公告)号：US09231448B2

公开(公告)日：2016-01-05

申请号：US13667029

申请日：2012-11-02

申请人： Sunonwealth Electric Machine Industry Co., Ltd.

发明人： Alex Horng ,  Ko-Chien Wang

IPC分类号： H02K21/12 ,  H02K3/52 ,  H02K5/167

CPC分类号： H02K3/522 ,  H02K5/1675

摘要： A motor includes a base, a stator, and a rotor. The base includes a shaft tube having an open end and receiving an inner assembly. The stator is mounted to an outer periphery of the shaft tube. The rotor is rotatably coupled to the inner assembly. The stator includes an insulating bobbin unit having an extension extending in a radial direction to the open end of the shaft tube. The extension includes an engagement hole. The shaft tube includes a positioning member having an engaging section engaged in the engagement hole. The insulating bobbin unit is fixed by an end of the engaging section. The engagement stability of the stator is enhanced by engagement of the positioning member of the base and the insulating bobbin unit.