公开(公告)号：US20190199171A1

公开(公告)日：2019-06-27

申请号：US16178588

申请日：2018-11-02

申请人： NIDEC CORPORATION

发明人： Shingo YOSHINO ,  Tomoaki ANDO ,  Masashi NOMURA ,  Shinsuke HAMANO

IPC分类号： H02K9/193 ,  H02K5/08

CPC分类号： H02K9/193 ,  F04D25/0626 ,  H02K3/46 ,  H02K5/08 ,  H02K5/124

摘要： A motor includes a rotary portion including a shaft having a center on a vertically extending central axis. A bearing portion rotatably supports the shaft. A stationary portion includes a stator. The bearing portion is radially outward of the shaft and includes a sleeve bearing that contains a lubricating oil; and a housing radially outward of the sleeve bearing. The stator includes a stator core that is radially outward of the housing; and an insulator that covers at least part of the stator core. The insulator includes an upper insulating portion that covers an upper face of the stator core; a connecting portion that extends radially inward from the upper insulating portion; and an insulator inclined portion that is inclined in a direction away from the central axis, away from the connecting portion.

公开(公告)号：US20180135644A1

公开(公告)日：2018-05-17

申请号：US15352584

申请日：2016-11-16

申请人： ASIA VITAL COMPONENTS (CHINA) CO., LTD.

发明人： Meng Shen

IPC分类号： F04D29/38 ,  F16C17/10 ,  F16C33/10 ,  F04D19/00 ,  F04D25/06 ,  F04D29/053 ,  F04D29/056 ,  F04D29/32

CPC分类号： F04D29/056 ,  F04D19/002 ,  F04D25/062 ,  F04D25/0626 ,  F16C17/10 ,  F16C33/102 ,  F16C33/1065 ,  F16C2360/46

摘要： The present invention relates to a bearing structure and a heat dissipating fan using the same. The bearing structure comprises a body which has a first surface, a second surface, and an inclined grease guiding surface. The first surface is provided with a shaft hole penetrating through the body. The inclined grease guiding surface is sloped on the first surface. Two end edges of the inclined grease guiding surface individually connect the first surface and the shaft hole. The bearing structure disposed in the heat dissipating fan can prevent the grease from leaking and increase the storage capacity for the grease.

公开(公告)号：US09903415B2

公开(公告)日：2018-02-27

申请号：US14511857

申请日：2014-10-10

申请人： DELTA ELECTRONICS, INC.

发明人： Cheng-Hsien Yeh ,  Chih-Wei Chan ,  Chao-Wen Lu

IPC分类号： F16C33/74 ,  F16C33/72 ,  F16C17/10 ,  H02K7/08 ,  F04D25/06 ,  F04D29/051 ,  F16C33/10 ,  F04D19/00

CPC分类号： F16C33/74 ,  F04D19/002 ,  F04D25/062 ,  F04D25/0626 ,  F04D29/0513 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C33/1085 ,  F16C33/726 ,  F16C2360/46 ,  F16C2380/26 ,  H02K7/086

摘要： A motor includes a shaft, a rotor shell, a bushing, a bearing, and a thrust plate. The rotor shell is connected with the shaft. The bushing has an accommodating space. The bearing is disposed in the accommodating space, and the shaft is disposed through the bearing. The thrust plate is connected with the shaft, and is disposed between a bottom of the accommodating space and a bottom of the bearing. At least one surface of the thrust plate is formed with a plurality of grooves tapering off from an edge to a center.

公开(公告)号：US20170356459A1

公开(公告)日：2017-12-14

申请号：US15608321

申请日：2017-05-30

申请人： Nidec Corporation

发明人： Yuko Hino ,  Seung-Sin Yoo ,  Tomoyuki Tsukamoto ,  Akihiko Makita

IPC分类号： F04D29/62 ,  F04D25/06 ,  F04D29/08 ,  F04B35/04 ,  F04B17/00

CPC分类号： F04D29/626 ,  F04B17/00 ,  F04B35/04 ,  F04D17/161 ,  F04D25/06 ,  F04D25/0626 ,  F04D29/083 ,  F04D29/281

摘要： This blower apparatus includes an air blowing portion including a plurality of flat plates arranged with an axial gap defined between adjacent ones of the flat plates; a motor portion arranged to rotate the air blowing portion; and a housing arranged to house the air blowing portion and the motor portion. The housing includes an air inlet and an air outlet. A rotating portion includes a hub including a flat plate holding portion arranged to hold at least one of the flat plates. Once the air blowing portion starts rotating, an air flow traveling radially outward is generated between the flat plates by viscous drag of surfaces of the flat plates and a centrifugal force. Since the air flow is generated between the flat plates, the air flow does not easily leak upwardly or downwardly, and thus, an improvement in air blowing efficiency is achieved.

公开(公告)号：US20160169242A1

公开(公告)日：2016-06-16

申请号：US15051795

申请日：2016-02-24

申请人： NIDEC CORPORATION

发明人： Tomotsugu Sugiyama ,  Teiichi Hirono ,  Shinichiro Noda ,  Akihiro Kimura ,  Yoshiharu Ikegami ,  Tomohiro Hasegawa ,  Masafumi Fujimoto ,  Tomohiro Yoneda

IPC分类号： F04D29/056 ,  F04D25/06

CPC分类号： F04D29/057 ,  F04D25/062 ,  F04D25/0626 ,  F04D29/0513 ,  F04D29/063 ,  F04D29/083 ,  F16C17/107 ,  F16C32/0633 ,  F16C33/745 ,  F16C2360/46

摘要： A dynamic pressure bearing apparatus includes a bearing portion, a shaft, a radial dynamic pressure bearing portion, and a seal gap. An annular member arranged in an annular shape, fixed to the shaft axially between the seal portion and the attachment surface, and arranged to extend radially outward beyond an opening of the seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the annular member. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.

摘要翻译： 动压轴承装置包括轴承部分，轴，径向动压轴承部分和密封间隙。 环形构件，其布置成环形，在所述密封部分和所述附接表面之间轴向地固定到所述轴上，并且被布置成径向向外延伸超过所述密封间隙的开口。 在轴承部分的上表面和环形部件的下表面之间限定了径向延伸的微小的水平间隙。 密封间隙布置成通过水平间隙与外部空间连通。

公开(公告)号：US20160032929A1

公开(公告)日：2016-02-04

申请号：US14887903

申请日：2015-10-20

申请人： NIDEC CORPORATION

发明人： Tomohiro Hasegawa ,  Shunji Matsumoto ,  Takahiro Kikuichi ,  Mitsuhito Nishio ,  Noriaki Yamada ,  Satoru Otsu ,  Hiroyoshi Teshima ,  Kiyoto Ida

IPC分类号： F04D25/06 ,  F04D17/16

CPC分类号： F04D25/062 ,  F04D17/16 ,  F04D25/0626 ,  F04D29/083

摘要： The second holder member includes a cover portion including, in an inner edge portion thereof, a cover portion cylindrical portion arranged to extend downward; the rotor cylindrical portion includes an annular rotor raised portion arranged to project radially outward from an outer circumferential surface thereof; the second holder member is attached to the first holder member; and a lower end portion of the cover portion cylindrical portion is arranged to be in axial contact with the rotor raised portion.

摘要翻译： 第二保持器构件包括盖部，该盖部在其内边缘部分中包括布置成向下延伸的盖部圆筒部; 转子圆筒部包括从其外周面径向向外突出的环状的转子凸部， 第二保持器构件附接到第一保持器构件; 并且盖部圆筒部的下端部配置成与转子隆起部轴向接触。

公开(公告)号：US09057381B2

公开(公告)日：2015-06-16

申请号：US13343270

申请日：2012-01-04

申请人： Bor-Haw Chang ,  Shu-Fan Liu

发明人： Bor-Haw Chang ,  Shu-Fan Liu

IPC分类号： F04B35/04 ,  F04D25/06 ,  F04D29/056 ,  F04D29/06

CPC分类号： F04D25/0626 ,  F04D25/062 ,  F04D29/056 ,  F04D29/06

摘要： An oil-retaining bearing fan structure includes a fan base seat, an oil-retaining bearing and a fan impeller. The fan base seat has a bearing cup on one side. At least one magnetic member is enclosed in the bearing cup. The magnetic member serves to apply a magnetic attraction force to a shaft of the fan structure to make the shaft quickly restore to its optimal operation position so as to reduce wear and lower the noises and vibration of the fan structure in operation. Therefore, the lifetime of the fan structure can be prolonged.

摘要翻译： 一种保油轴承风扇结构，包括风扇底座，保油轴承和风扇叶轮。 风扇基座在一侧有一个轴承杯。 至少一个磁性构件封闭在轴承杯中。 磁性构件用于对风扇结构的轴施加磁力吸引力，以使轴快速恢复到其最佳操作位置，从而减少操作中的风扇结构的磨损和降低噪声和振动。 因此，可以延长风扇结构的寿命。

公开(公告)号：US20130136631A1

公开(公告)日：2013-05-30

申请号：US13612138

申请日：2012-09-12

申请人： Masashi Hirayama ,  Hiroyoshi Teshima

发明人： Masashi Hirayama ,  Hiroyoshi Teshima

IPC分类号： F04B35/04

CPC分类号： F04D25/0626 ,  H02K5/1675

摘要： A fan includes blades and a motor. The motor includes a rotor holder; a shaft; a sleeve; a holder; and a thrust plate. A radial bearing portion arranged to support the shaft in a radial direction is defined in a radial gap defined between the shaft and the sleeve. A lower seal portion having a lower surface of a lubricating oil defined therein is defined between the thrust plate and the holder, while an upper seal portion having an upper surface of the lubricating oil defined therein is defined between the holder and the sleeve. The holder includes a connection channel defining portion arranged to define a connection channel to connect an upper space defined between the upper seal portion and an inside of the rotor holder with a lower space at which the lower seal portion is arranged.

摘要翻译： 风扇包括叶片和电机。 电动机包括转子保持器; 轴; 袖子 持有人 和推力板。 在径向方向上支撑轴的径向支承部分被限定在限定在轴和套筒之间的径向间隙中。 限定在其中的具有其中限定的润滑油的下表面的下密封部分限定在止推板和保持器之间，而具有限定在其中的润滑油的上表面的上密封部分限定在保持器和套筒之间。 保持器包括连接通道限定部分，其布置成限定连接通道，以将限定在上密封部分和转子保持器内部之间的上部空间连接到下部密封部分的下部空间。

公开(公告)号：US07922447B2

公开(公告)日：2011-04-12

申请号：US11781959

申请日：2007-07-24

申请人： Ming-Shing Kao

发明人： Ming-Shing Kao

IPC分类号： F04D29/05

CPC分类号： F04D25/062 ,  F04D25/0626 ,  F04D29/057 ,  F16C17/10

摘要： A highly stable and durable fan bearing structure practical for small electronic device application is disclosed to include a bearing block, which has a stepped hub defining a vertically extending axle hole and an inside annular flange inside the axle hole at a distance away from the top opening of the axle hole, a fan blade assembly, which has permanent magnets mounted in a hollow base block thereof and an axle suspending in the hollow base block and inserted into the axle hole and coupled to the inside annular flange of the stepped hub and kept in coincidence with the central axis of the axle hole, and a stator module accommodated in the hollow base block of the fan blade assembly for acting against the permanent magnets to cause rotation of the fan blade assembly upon connection of an electric current.

摘要翻译： 公开了一种用于小型电子设备应用的高度稳定和耐用的风扇轴承结构，其包括轴承座，该轴承座具有限定垂直延伸的轴孔的阶梯式轮毂和位于车轴孔内部的距离顶部开口一定距离的内部环形凸缘 的轴孔，风扇叶片组件，其具有安装在其空心基座中的永磁体和悬挂在中空基座中的轴，并插入到轴孔中并联接到台阶式毂的内环形凸缘并保持在 与轴孔的中心轴线重合，以及容纳在风扇叶片组件的中空基座块中的定子模块，用于在连接电流时抵抗永磁体引起风扇叶片组件的旋转。

公开(公告)号：US20090290975A1

公开(公告)日：2009-11-26

申请号：US12124498

申请日：2008-05-21

申请人： Hong-Guang Li

发明人： Hong-Guang Li

IPC分类号： F01D25/16

CPC分类号： F04D25/062 ,  F04D25/0626 ,  F04D29/063

摘要： An oil-sealing arrangement for cooling fan includes a fan housing provided with a central hollow pipe having a hollow bearing fitted therein in a clearance fit relation, and the bearing having a front end formed into a forward tapered projection; and a blade carrier including a fitting cylinder with a rearward tapered projection. When the fitting cylinder is extended into the hollow pipe on the fan housing, the rearward tapered projection and the forward tapered projection together define a seeped oil chamber between them. When the cooling fan operates, lubricating oil seeped out of the hollow pipe along the bearing is recovered in the seeped oil chamber and flows back to the hollow pipe via the clearance between the bearing and the hollow pipe without being centrifugally thrown out of the cooling fan, allowing the cooling fan to have extended usable life.

摘要翻译： 用于冷却风扇的油封装置包括：风扇壳体，其具有中空空心管，中空管以空隙配合关系装配在其中，该轴承具有形成为前锥形突起的前端; 以及包括具有向后锥形突起的配合筒的刀片载体。 当安装筒延伸到风扇壳体上的中空管中时，后向锥形突出部和向前锥形突起一起在它们之间形成一个渗透的油室。 当冷却风扇运转时，沿着轴承从中空管中渗出的润滑油在渗透的油室中被回收，并且经由轴承和中空管之间的间隙回流到中空管，而不会从冷却风扇中离心地抛出 ，允许冷却风扇延长使用寿命。