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1. 发明授权

US11698076B2 Refrigerant compressor including insulation for magnetic bearing assembly 有权
公开(公告)号：US11698076B2
公开(公告)日：2023-07-11
申请号：US17574606
申请日：2022-01-13
申请人： Danfoss A/S
发明人： Delvis Anibal Gonzalez , Lin Xiang Sun
IPC分类号： F04D25/06 , F04D29/048 , H02K7/09 , F16C32/04
CPC分类号： F04D25/06 , F04D29/048 , F16C32/048 , H02K7/09
摘要： A refrigerant compressor includes a magnetic bearing assembly including insulation for the coils and lamination stack of the assembly. The lamination stack includes coil apertures extending axially between opposed axial faces. An insert partially extends into a first coil aperture to prevent direct contact between first and second coils. The insert includes a first leg extending into a slot formed in the lamination stack and a second leg radially spaced-apart from the first leg with the second leg extending axially into the first coil aperture. An annular cover having first and second legs extends into respective slots and apertures of the lamination stack. A second annular cover is provided on the opposite face of the coils that is connected to free ends of the second legs. The lamination stack and coils are coated with an insulative material such as epoxy.

2. 发明申请

US20180128313A1 ACTIVE RADIAL MAGNETIC BEARING PHASED ARRAY 审中-公开
公开(公告)号：US20180128313A1
公开(公告)日：2018-05-10
申请号：US15344886
申请日：2016-11-07
申请人： Cleveland State University
发明人： Jerzy T. Sawicki , Kenneth R. Bischof
IPC分类号： F16C32/04
CPC分类号： F16C32/048 , F16C32/0444 , F16C32/0446 , F16C32/0453 , F16C2233/00
摘要： A rotor bearing system radially supporting a rotor, held in magnetic suspension without contact, by active radial magnetic bearing phased arrays, bearing sensors used to measure the rotor motion and bearing properties, a controller system used to adjust variable magnetic bearing parameters via amplifiers for each array element in response to bearing sensors, to change bearing local array element stiffness and damping, generating bearing forces for levitating the rotor, stabilizing rotor vibrations, and acting as a rotor vibration actuator.

3. 发明申请

US20170324304A1 ELECTRIC MOTOR, CONTROL DEVICE, AND MOTOR CONTROL SYSTEM 审中-公开
公开(公告)号：US20170324304A1
公开(公告)日：2017-11-09
申请号：US15523269
申请日：2015-10-29
申请人： DENSO CORPORATION , SOKEN, INC. , National University Corporation Shizuoka University
发明人： Koji ITO , Masanori YASUDA , Shinji MAKITA , Jun YAMAOKA , Masao TOKUNAGA , Etsuro YOSHINO , Junichi ASAMA
IPC分类号： H02K7/09 , H02K11/21 , F16C32/04 , H02K21/22 , H02K5/16 , H02K29/06
CPC分类号： H02K7/09 , F16C19/06 , F16C32/04 , F16C32/0402 , F16C32/0457 , F16C32/048 , F16C32/0497 , F16C39/06 , F16C39/063 , H02K5/16 , H02K5/161 , H02K11/20 , H02K11/21 , H02K21/22 , H02K29/06 , H02K2205/03 , H02P1/00 , H02P6/16
摘要： In an electric motor, a magnetic bearing generates an electromagnetic force between multiple permanent magnets and a coil and rotatably supports an other side of a rotation shaft in an axis line direction. The rotation shaft is configured to be capable of being inclined with a rotation center line using a bearing side of the rotation shaft as a fulcrum. An electronic control device controls a current that flows to the coil such that an axis line of the rotation shaft approaches the rotation center line due to a supporting force which is the electromagnetic force between the multiple permanent magnets and the coil. Accordingly, the rotation shaft is rotatably supported to be freely rotatable by a magnetic bearing and the bearing.

4. 发明申请

US20170234364A1 MAGNETIC BEARING 审中-公开
公开(公告)号：US20170234364A1
公开(公告)日：2017-08-17
申请号：US15504490
申请日：2015-08-31
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Atsushi SAKAWAKI , Yuji NAKAZAWA
IPC分类号： F16C32/04 , H02K7/09
CPC分类号： F16C32/0451 , F16C32/0448 , F16C32/048 , F16C2360/23 , H02K7/09
摘要： A magnetic bearing includes a controller dividing a control region in two regions based on an individual difference between electromagnets regarding a correlation between two or more parameters among a current flowing through the electromagnets, a number of flux linkages, a gap width, magnetic energy, magnetic co-energy, electromagnetic force, and a parameter derived using these parameters. In a first control region with a small individual difference, the controller uses a control model common for all of the electromagnets. In a second control region with a large individual difference, the controller performs position control of a drive shaft using control models provided one for each of the electromagnets or one for each of a predetermined number of electromagnet groups.

5. 发明申请

US20170167943A1 Balancing method for balancing at high speed a rotor of a rotary machine 审中-公开
公开(公告)号：US20170167943A1
公开(公告)日：2017-06-15
申请号：US15349312
申请日：2016-11-11
申请人： SKF Magnetic Mechatronics
发明人： Ulrich Schroeder
IPC分类号： G01M1/32 , F16C32/04
CPC分类号： G01M1/32 , F16C32/0446 , F16C32/048 , F16C2380/28 , H02K7/04 , H02K7/09 , H02K15/165 , Y10T29/49004
摘要： A balancing method for balancing at high speed a flexible rotor of a rotary machine, the rotary machine having a stator, and the rotor being supported in the stator by at least two radial magnetic bearings. The balancing method including a step of placing the rotor inside the stator, a step of performing at least one first run in order to identify amplitude and angular location of the unbalance in a first speed range below critical speed, a step of placing first balancing masses inside the rotor on predefined first balancing planes, a step of performing at least one second run in order to identify amplitude and angular location of the unbalance in a second speed range above critical speed, and a step of placing second balancing masses inside the rotor on predefined second balancing planes.

6. 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.

7. 发明申请

US20160230810A1 Shaft control method and device for magnetic suspension system 审中-公开
标题翻译：磁悬浮系统轴控制方法及装置
公开(公告)号：US20160230810A1
公开(公告)日：2016-08-11
申请号：US15021724
申请日：2014-08-01
申请人： GREEN REFRIGERATION EQUIPMENT ENGINEERING RESEARCH CENTER OF ZHUHAI GREE CO., LTD.
发明人： HUI HUANG , YUSHENG HU , DONGSUO CHEN , YAN LI , WEILIN GUO , DAOFU HU
IPC分类号： F16C32/04 , G05B6/02
CPC分类号： F16C32/0451 , F16C32/048 , F16C32/0487 , G05B6/02
摘要： A shaft control method and device for a magnetic suspension system. The shaft control method for the magnetic suspension system includes: acquiring a displacement signal obtained by detecting displacement of a shaft in the magnetic suspension system (Step 101); separating whirling displacement from the displacement signal (Step 102); and controlling whirling of the shaft according to the whirling displacement (Step 103). By the disclosure, the effect of suppressing the whirling of the shaft during high-speed rotation of the magnetic suspension system is achieved.
摘要翻译：一种用于磁悬浮系统的轴控制方法和装置。磁悬浮系统的轴控制方法包括：获取通过检测磁悬浮系统中的轴的位移而获得的位移信号（步骤101）; 将转动位移与位移信号分离（步骤102）; 并根据旋转位移控制轴的旋转（步骤103）。通过该公开，实现了在磁悬浮系统的高速旋转期间抑制轴的旋转的效果。

8. 发明申请

US20160146247A1 MACHINE AND METHOD FOR MONITORING THE STATE OF A SAFETY BEARING OF A MACHINE 审中-公开
标题翻译：用于监测机器安全轴承状态的机器和方法
公开(公告)号：US20160146247A1
公开(公告)日：2016-05-26
申请号：US15013530
申请日：2016-02-02
申请人： SIEMENS AKTIENGESELLSCHAFT , SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
发明人： HARTMUT WALTER , JAN GEORGI
IPC分类号： F16C32/04 , G01L5/00 , G01M13/04
CPC分类号： H02K7/09 , F16C19/18 , F16C19/522 , F16C19/525 , F16C32/0442 , F16C32/0444 , F16C32/048 , F16C39/02 , F16C41/007 , G01L5/0009 , G01M13/04
摘要： In a method for monitoring a state of a safety bearing of a rotor shaft of a machine, with the rotor shaft being supported by a magnetic bearing and the safety bearing having an outer ring and an inner ring arranged for rotation with respect to the outer ring, the rotor shaft of the machine is caught with the safety bearing when the magnetic bearing of the machine fails. The magnetic bearing is witched off for monitoring the state of the safety bearing. The rotor shaft is rotated with the machine under control of a higher-ranking controller by using a defined motion sequence, and a physical variable of the safety bearing is measured with a sensor.
摘要翻译：在一种用于监测机器的转子轴的安全轴承的状态的方法中，转子轴由磁性轴承支撑，并且安全轴承具有外圈和内圈，所述外圈和内圈相对于外圈旋转当机器的磁轴承故障时，机器的转子轴被安全轴承卡住。磁轴承用于监控安全轴承的状态。通过使用定义的运动顺序，在较高级别的控制器的控制下使转子轴旋转，并且用传感器测量安全轴承的物理变量。

9. 发明申请

US20150275966A1 ROTORS FOR ROTATING MACHINES 有权
标题翻译：旋转机转子
公开(公告)号：US20150275966A1
公开(公告)日：2015-10-01
申请号：US14432206
申请日：2013-09-13
申请人： ABB RESEARCH LTD.
发明人： Darren Dale Tremelling , Dezheng Wu , Steven Carl Englebretson , Simon E. Mushi , Se Young Yoon , Yujing Liu
IPC分类号： F16C32/04 , H02K7/00 , H02K7/09
CPC分类号： F16C32/0493 , F16C3/026 , F16C32/047 , F16C32/0474 , F16C32/048 , F16C2240/40 , F16C2240/60 , F16C2240/70 , F16C2380/26 , H02K1/28 , H02K7/003 , H02K7/09
摘要： Rotating machines and rotors therefor are disclosed. The bearings may be magnetic bearings configured to magnetically levitate the rotor. The rotors may include a hollow fiber-reinforced composite shaft and a magnetic bearing rotor core disposed on the shaft and configured for use with the magnetic bearing. In some examples, the rotating machines may be electrical machines.
摘要翻译：公开了用于其的旋转机器和转子。轴承可以是构造成磁悬浮转子的磁性轴承。转子可以包括中空纤维增强复合轴和设置在轴上的磁性轴承转子芯，并且构造成用于磁轴承。在一些示例中，旋转机器可以是电机。

10. 发明申请

US20150275964A1 Magnetic Bearing, Shaft and Shaft Mounting 有权
标题翻译：磁轴承，轴和轴安装
公开(公告)号：US20150275964A1
公开(公告)日：2015-10-01
申请号：US14675148
申请日：2015-03-31
申请人： Rieter CZ s.r.o.
发明人： Milan Moravec , Jiri Sloupensky , Siegfried Silber , Andreas Josef Pröll , Peter Dirnberger
IPC分类号： F16C32/04
CPC分类号： F16C32/048 , D01H4/12 , F16C32/0465 , F16C32/047 , F16C32/0487 , F16C2340/18
摘要： A magnetic bearing for the mounting of a shaft (7), in particular for a spinning rotor of an open-end spinning device, features several pole shanks (2) of a stator (1) for the active radial magnetic mounting of the shaft (7) in two degrees of freedom, which in each case are surrounded by a coil (6) and are radially arranged to each other, whereas the pole shanks (2) are arranged at each other in such a manner that they release an opening (4) for the shaft (7). In the area of the opening (4), and on the side of the coils (6) turned away from the opening (4), the pole shanks (2) are connected to each other. In particular, for the passive axial mounting of the shaft (7), at least one permanent magnet (10) is arranged between the coils (6) and the opening (4); this is in operative connection with the pole shanks (2). A shaft (7) for mounting with at least one corresponding magnetic bearing is a composite component, which at least partially consists of non ferromagnetic material. In the area of the radial and (if applicable) axial mounting, a component made of a ferromagnetic material is arranged. A shaft mounting, in particular for a rotatable shaft of a spinning rotor in an open-end spinning device, features, for the passive axial mounting of one degree of freedom of the shaft (7) and for the active radial mounting of two degrees of freedom of the shaft (7), at least one, preferably two, corresponding magnetic bearings.
摘要翻译：用于安装轴（7）的磁性轴承，特别是用于开放式纺纱装置的旋转转子的特征在于具有用于轴的主动径向磁性安装的定子（1）的多个极杆（2） 7）在两个自由度中，其在每种情况下被线圈（6）包围并且彼此径向布置，而杆杆（2）以这样的方式彼此布置，使得它们释放开口 4）用于轴（7）。在开口（4）的区域中，并且在离开开口（4）的线圈（6）侧，极靴（2）彼此连接。特别地，对于轴（7）的被动轴向安装，至少一个永磁体（10）设置在线圈（6）和开口（4）之间; 这与杆杆（2）有效连接。用于与至少一个对应的磁性轴承安装的轴（7）是至少部分地由非铁磁材料组成的复合部件。在径向和（如果适用）轴向安装的区域中，布置由铁磁材料制成的部件。特别是用于开放式旋转装置中的旋转转子的可旋转轴的轴安装件，其特征在于用于轴（7）的一个自由度的被动轴向安装，并且用于主动径向安装两个轴（7）的自由度，至少一个，优选两个对应的磁轴承。

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