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1. 发明公开

US20230340993A1 STATOR OF MAGNETIC LEVITATION BEARING, MAGNETIC LEVITATION BEARING, AND COMPRESSOR 审中-公开
公开(公告)号：US20230340993A1
公开(公告)日：2023-10-26
申请号：US18002185
申请日：2021-04-30
申请人： GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
发明人： Weilin GUO , Fang ZHANG , Gao GONG , Chao ZHANG , Xin LI , Hao LIANG
IPC分类号： F16C32/04
CPC分类号： F16C32/0461 , F16C32/047 , F16C2226/32
摘要： The present disclosure relates to a stator of a magnetic levitation bearing, a magnetic levitation bearing, and a compressor. The stator of the magnetic levitation bearing includes a stator core (4), a stator coil (5) wound around the stator core (4), a housing (2) sleeved outside the stator core (4) and having a clearance fit or a transition fit with the stator core (4), and a potting component (3) filled between the housing (2) and the stator core (4).

2. 发明申请

US20170284463A1 Device For Magnetically Supporting A Shaft 审中-公开
公开(公告)号：US20170284463A1
公开(公告)日：2017-10-05
申请号：US15507493
申请日：2015-08-18
申请人： Siemens Aktiengesellschaft
发明人： Dirk Diehl , Robert Goraj
IPC分类号： F16C32/04
CPC分类号： F16C32/0461 , F16C32/0444 , F16C32/0465 , F16C32/0474
摘要： A device for supporting a shaft may include a magnetic yoke that surrounds the shaft and has the shape of a U-section, and at least one first element for creating a magnetic circuit that can be formed from the magnetic yoke to the shaft. The shaft may be eccentrically supported in the surrounding magnetic yoke in such a way that a first vertical upper distance between the shaft and the magnetic yoke is smaller a second vertical lower distance between the shaft and the magnetic yoke.

3. 发明授权

US09638246B2 Active magnetic bearing coils rolled in series 有权
公开(公告)号：US09638246B2
公开(公告)日：2017-05-02
申请号：US14731489
申请日：2015-06-05
申请人： Mohamed Bendaoud , Bernard Levent
发明人： Mohamed Bendaoud , Bernard Levent
IPC分类号： F16C32/04
CPC分类号： F16C32/0476 , F16C32/0442 , F16C32/0461 , F16C2300/42
摘要： An axial magnetic bearing comprising a rotor stop disc which is mounted perpendicularly and integral with a rotating shaft and a coaxially stator assembly and comprising at least one stator element of magnetic material having an inner face parallel to a side of the rotor stop disc and separated from it by an air gap, the at least one stator element comprising two annular coils and housed in two annular notches formed continuously in the magnetic material of the at least one stator element and opening to the side of the rotor stop disc, the two annular notches being separated by an annular tooth, rolled in series and are formed by a single continuous wire, a bridging recess being cut in the annular tooth for receiving a massive insert part that extends the annular tooth without locally modifying the air gap with the rotor stop disc.

4. 发明授权

US09634539B2 Radial magnetic bearing for magnetic support of a rotor 有权
公开(公告)号：US09634539B2
公开(公告)日：2017-04-25
申请号：US13997035
申请日：2011-12-13
申请人： Robin Deits , Matthias Lang
发明人： Robin Deits , Matthias Lang
IPC分类号： H02K7/09 , F16C32/04 , H02K3/493
CPC分类号： H02K7/09 , F16C32/0461 , F16C32/048 , H02K3/493
摘要： A radial magnetic bearing for magnetic bearing of a rotor has a stator which includes a magnetically conductive stator element, arranged circulating around a rotor. The stator element has recesses running in the axial direction of the stator element in which electrical lines from coils are arranged, wherein magnetic fields can be generated by the coils which hold the rotor suspended in an air gap arranged between the rotor and stator. A softer progression of the components of magnetic flow density in the radial direction is achieved by design measures on the transitions from one magnetic pole to the next magnetic pole, which results in a reduction of the eddy currents induced in the rotor.

5. 发明申请

US20140210289A1 APPARATUS AND METHODS FOR PASSIVE MAGNETIC REDUCTIONOF THRUST FORCE IN ROTATING MACHINES 有权
标题翻译：用于旋转机械中的被动磁场减少的装置和方法
公开(公告)号：US20140210289A1
公开(公告)日：2014-07-31
申请号：US14048577
申请日：2013-10-08
申请人： ACTIVE POWER, INC.
发明人： JAMES T. ANDREWS , KARL THOMAS SCHUETZE
IPC分类号： H02K7/09 , H02K7/02 , H02K7/08
CPC分类号： H02K7/09 , F16C19/54 , F16C32/04 , F16C32/0408 , F16C32/0461 , F16C32/0495 , F16C39/06 , F16C2300/34 , F16C2361/55 , H02K5/16 , H02K5/1732 , H02K7/025 , H02K2205/03 , Y02E60/16
摘要： Apparatus and methods for providing a pre-determined axial thrust force profile for use in a rotating machine that includes a magnetically permeable rotor with first and second surfaces and a generally perpendicular shaft is disclosed. One or more bearings support the shaft and a coil induces flux in the rotor. First and second pole pieces disposed adjacent to the first and second surfaces define first and second gaps. A series magnetic circuit including the pole pieces, the gaps and the rotor carries flux generated by current flowing in the coil. Pole pieces and gaps provide substantially similar reluctance in both gaps. Magnetic saturation characteristics of a series magnetic circuit may provide a pre-determined axial force profile as a function of coil current. A first magnetic saturation characteristic may provide a maximum axial force at a first current magnitude. A second magnetic saturation characteristic may provide a lower axial force at a current greater than the first current. The saturation characteristic may be formed by configuring the geometry and dimensions of the poles. The axial force profile may be formed to reduce the net axial thrust load on the bearings.
摘要翻译：公开了一种用于提供用于旋转机器中的预定轴向推力分布的装置和方法，所述旋转机器包括具有第一和第二表面的导磁转子以及大致垂直的轴。一个或多个轴承支撑轴并且线圈在转子中引起通量。与第一和第二表面相邻设置的第一和第二极片限定第一和第二间隙。包括极片，间隙和转子的串联磁路承载由在线圈中流动的电流产生的磁通。极片和间隙在两个间隙中提供了大致相似的磁阻。串联磁路的磁饱和特性可以作为线圈电流的函数提供预定的轴向力分布。第一磁饱和特性可提供在第一电流幅度下的最大轴向力。第二磁饱和特性可以在大于第一电流的电流下提供较低的轴向力。可以通过配置极的几何形状和尺寸来形成饱和特性。可以形成轴向力分布以减小轴承上的净轴向推力负载。

6. 发明授权

US08269388B2 Magnetic bearing assembly for rotors 有权
标题翻译：用于转子的磁轴承组件
公开(公告)号：US08269388B2
公开(公告)日：2012-09-18
申请号：US12322424
申请日：2009-02-02
申请人： Jeffrey Russell Smithanik , Tracy Kathryn Strem , Daren Paul Tremaine
发明人： Jeffrey Russell Smithanik , Tracy Kathryn Strem , Daren Paul Tremaine
IPC分类号： H02K7/09
CPC分类号： H02K7/09 , F16C32/0461 , F16C32/047 , F16C32/0491 , F16C2380/16 , H01J35/103
摘要： A rotor assembly includes a rotor having a central axis extending between the two opposing ends and a radial surface, and is rotatable about the central axis. At least one electromagnet is disposed proximal to and configured to exert magnetic force on a portion of the rotor. Further, a channeling member is disposed generally adjacent to the electromagnet and has a radial surface disposed adjacent to the rotor radial surface. As such, magnetic flux generated by the electromagnet extends generally radially between the electromagnet and the rotor portion and generally axially between the rotor portion and the channeling member so that the magnetic force biases the rotor both radially and axially to maintain the rotor at a desired position. Preferably, the assembly includes a plurality of magnets proximal to each end, two channeling members, and a tubular body extending between the channeling members and enclosing the rotor.
摘要翻译：转子组件包括具有在两个相对端之间延伸的中心轴线和径向表面的转子，并且可围绕中心轴线旋转。至少一个电磁体设置在转子的一部分上并且构造成对转子的一部分施加磁力。此外，通道构件大体上邻近电磁铁设置，并且具有邻近转子径向表面设置的径向表面。因此，由电磁体产生的磁通通常在电磁体和转子部分之间径向延伸，并且在转子部分和通道部件之间大致轴向地延伸，使得磁力径向和轴向地偏压转子，以将转子保持在期望的位置。优选地，组件包括靠近每个端部的多个磁体，两个通道构件和在引导构件之间延伸并包围转子的管状体。

7. 发明申请

US20110101808A1 MAGNETIC BEARING DEVICE 有权
标题翻译：磁力轴承装置
公开(公告)号：US20110101808A1
公开(公告)日：2011-05-05
申请号：US13001510
申请日：2009-04-21
申请人： Gen Kuwata
发明人： Gen Kuwata
IPC分类号： H02K7/09
CPC分类号： F16C32/0459 , F16C32/0461 , F16C32/048 , F16C2240/40 , F16C2300/22
摘要： Provided is a magnetic bearing device capable of facilitating manufacture of the magnetic bearing device and improving precision in production thereof while maintaining eddy current reducing effects. The magnetic bearing device 10 supporting a rotating shaft 3 with a magnetic force includes a plurality of magnetic poles 5 arranged in the circumferential direction of the rotating shaft 3. Each magnetic pole 5 includes an inner end surface 5b facing the outer surface of the rotating shaft in proximity thereto. The magnetic poles which are adjacent to each other in the circumferential direction respectively extend in the axial directions of the magnetic poles 5 to the inner end surfaces 5b of the magnetic poles so as to virtually interfere with each other in the vicinity of the outer surface of the rotating shaft. The virtual interfering portions 5a of both the magnetic poles 5 capable of interfering with each other are removed by cutting.
摘要翻译：提供一种磁轴承装置，其能够在保持涡流减小效果的同时，促进磁性轴承装置的制造和提高其制造精度。支撑具有磁力的旋转轴3的磁轴承装置10包括沿旋转轴3的圆周方向布置的多个磁极5.每个磁极5包括面向旋转轴的外表面的内端面5b 在其附近。在圆周方向上彼此相邻的磁极分别在磁极5的轴向方向上延伸到磁极的内端面5b，从而在外部表面附近实际上彼此干涉旋转轴。通过切割能够相互干扰的两个磁极5的虚拟干涉部分5a被去除。

8. 发明申请

US20100194224A1 Magnetic bearing assembly for rotors 有权
标题翻译：用于转子的磁轴承组件
公开(公告)号：US20100194224A1
公开(公告)日：2010-08-05
申请号：US12322424
申请日：2009-02-02
申请人： Jeffrey Russell Smithanik , Tracy Kathryn Strem , Daren Paul Tremaine
发明人： Jeffrey Russell Smithanik , Tracy Kathryn Strem , Daren Paul Tremaine
IPC分类号： H02K7/09
CPC分类号： H02K7/09 , F16C32/0461 , F16C32/047 , F16C32/0491 , F16C2380/16 , H01J35/103
摘要： A rotor assembly includes a rotor having a central axis extending between the two opposing ends and a radial surface, and is rotatable about the central axis. At least one electromagnet is disposed proximal to and configured to exert magnetic force on a portion of the rotor. Further, a channeling member is disposed generally adjacent to the electromagnet and has a radial surface disposed adjacent to the rotor radial surface. As such, magnetic flux generated by the electromagnet extends generally radially between the electromagnet and the rotor portion and generally axially between the rotor portion and the channeling member so that the magnetic force biases the rotor both radially and axially to maintain the rotor at a desired position. Preferably, the assembly includes a plurality of magnets proximal to each end, two channeling members, and a tubular body extending between the channeling members and enclosing the rotor.
摘要翻译：转子组件包括具有在两个相对端之间延伸的中心轴线和径向表面的转子，并且可围绕中心轴线旋转。至少一个电磁体设置在转子的一部分上并且构造成对转子的一部分施加磁力。此外，通道构件大体上邻近电磁铁设置，并且具有邻近转子径向表面设置的径向表面。因此，由电磁体产生的磁通通常在电磁体和转子部分之间径向延伸，并且在转子部分和通道部件之间大致轴向地延伸，使得磁力径向和轴向地偏压转子，以将转子保持在期望的位置。优选地，组件包括靠近每个端部的多个磁体，两个通道构件和在引导构件之间延伸并包围转子的管状体。

9. 发明授权

US07485994B2 Magnetic bearings 有权
标题翻译：磁性轴承
公开(公告)号：US07485994B2
公开(公告)日：2009-02-03
申请号：US11876172
申请日：2007-10-22
申请人： Seamus Dominic Garvey
发明人： Seamus Dominic Garvey
IPC分类号： H02K7/09
CPC分类号： F16C32/0461
摘要： A magnetic bearing has two bearing members each of which carries a set of bearing elements. The bearing elements carried by one member are interleaved with the bearing elements carried by the other member to define three or more substantially parallel interleaf gaps between successive elements, so that bearing forces can be developed as a result of magnetic shear stresses acting across those gaps. The magnetic bearing achieves its bearing forces as the sum of force contributions from a number of parallel (or nearly-parallel) airgaps and each of these individual airgap force contributions comes about as the integration of magnetic shear stress over the airgap area brought about by causing lines of magnetic flux to cross the airgap at an angle to the normal.
摘要翻译：磁轴承具有两个轴承构件，每个轴承构件承载一组轴承元件。由一个构件承载的轴承元件与由另一个构件承载的承载元件交错以在连续元件之间限定三个或更多个基本上平行的间隙，从而可以通过作用在这些间隙上的磁剪切应力来产生承载力。磁性轴承实现其承受力，因为来自多个平行（或近似平行）的气隙和这些单独的气隙作用贡献中的每一个的力的贡献的总和作为通过引起的气隙区域上的磁剪切应力的积分磁通线以与正常角度相交的方式穿过气隙。

10. 发明申请

US20070216244A1 Motor with rotor supporting windings 审中-公开
标题翻译：电机带转子支撑绕组
公开(公告)号：US20070216244A1
公开(公告)日：2007-09-20
申请号：US11587348
申请日：2005-04-22
申请人： Jonathan Edelson
发明人： Jonathan Edelson
IPC分类号： H02K11/00 , H02K7/09 , H02K3/00
CPC分类号： F16C32/0461 , F16C32/0463 , F16C32/0497 , H02K3/28 , H02K7/09 , H02K17/16
摘要： The present invention relates to the use of stator windings of an induction machine to provide both rotation of the rotor and active rotor positioning within the stator frame by modification of the magnetizing current component in the D-Q plane of the rotor applied transformed to the AC waveform current of the stator windings according to an X-Y direction describing a rotor repositioning requirement.
摘要翻译：感应电机的定子绕组的使用本发明涉及感应电机的定子绕组的使用，通过修改转子施加的转子的DQ平面中的磁化电流分量来改变定子框架内的转子和主动转子的位置，使其转换成AC波形电流的定子绕组根据描述转子重新定位要求的XY方向。

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