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公开(公告)号：US11942840B2
公开(公告)日：2024-03-26
申请号：US17437262
申请日：2019-12-24
发明人： Xia Li , Bin Chen , Jinfei Shi , Yong Xiao , Qinhong Yu
CPC分类号： H02K19/14 , H02K1/246 , F04B35/04 , H02K2213/03
摘要： The present disclosure is related to a self-starting synchronous reluctance motor rotor, a motor and a compressor. The self-starting synchronous reluctance motor rotor includes a rotor core; the rotor core is provided with a plurality of slit grooves; both ends of each of the slit grooves are respectively provided with a filled groove; a first end of the filled groove is provided adjacent to each slit groove, and a second end of the filled groove extends outwards parallel to the d-axis of the rotor core; the second end of the filled groove is provided with at least one bevel edge, so that when the d-axis magnetic flux of the rotor core enters a stator along channels formed at the bevel edges, no abrupt change occurs to the magnetic flux.
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公开(公告)号：US20230308001A1
公开(公告)日：2023-09-28
申请号：US18017061
申请日：2021-07-22
发明人： Yusheng HU , Bin CHEN , Yong XIAO , Jinfei SHI , Xia LI , Zhidong ZHANG
CPC分类号： H02K19/14 , H02K1/246 , H02K19/103 , H02K15/0012 , H02K2213/03
摘要： The present disclosure provides a rotor structure, an electric motor and a rotor manufacturing method. The rotor structure includes a plurality of rotor sheets (100) and a rotating shaft. The rotor sheets (100) are stacked in sequence along an axial direction of the rotor structure. Each of the rotor sheets (100) is provided with a shaft hole (20), a first slot (111), and first filling slots (121) at both ends of the first slot (111). The first slot (111) extends in a direction of a direct axis (3) of the rotor structure and includes slot sections (1110) at opposite sides of the shaft hole (20). The rotating shaft passes through the shaft hole (20) of the plurality of rotor sheets (100). The first slot (111), the first filling slots (121) and the rotating shaft form a first flux barrier layer (101).
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公开(公告)号：US20230072018A1
公开(公告)日：2023-03-09
申请号：US17988069
申请日：2022-11-16
IPC分类号： H02K19/14 , H02K41/03 , H02K47/04 , H02P25/064 , H02P27/08
摘要： A planar drive system comprises a stator and a rotor. The stator comprises a plurality of energizable stator conductors. The rotor comprises a magnet device having at least one rotor magnet. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device in order to drive the rotor. The stator is configured to carry out energization of the stator conductors so that an alternating magnetic field can be generated via the energized stator conductors. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field. The planar drive system is configured to transmit data from the rotor to the stator, and the rotor is configured to temporarily load the at least one rotor coil to temporarily cause increased current consumption of the energized stator conductors of the stator.
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公开(公告)号：US11476786B2
公开(公告)日：2022-10-18
申请号：US17236764
申请日：2021-04-21
摘要： An electric machine includes a stator having a stator winding disposed thereon. A rotor is electromagnetically exposed to the stator. A field winding and an induction winding are disposed on the rotor. A rectifier is electrically coupled to the induction winding and the field winding. Upon application of a voltage to the stator winding, the stator winding produces a first rotating magnetic field and a second rotating magnetic field that has a different spatial frequency than the first rotating magnetic field. The first rotating magnetic field interacts asynchronously with the induction winding to produce an alternating current in the induction winding. The rectifier changes the alternating current to a direct current that is supplied to the field winding. The field winding interacts synchronously with the second rotating magnetic field.
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公开(公告)号：US10992206B2
公开(公告)日：2021-04-27
申请号：US16324306
申请日：2017-08-17
发明人： Seung-Wook Jung , Moo-Jong Jeon , Je-Geun Oh , Chung-Man Jang
摘要： A field discharge resistor unit according to an embodiment of the present invention is a device coupled to a rotary shaft of a synchronous motor and connected to a coil wound on a rotor of the synchronous motor, to reduce a magnitude of an electric current flowing through the coil wound on the rotor, and comprises: a hub which has a receiving space therein and is coupled to the rotary shaft of the synchronous motor so that a rotary movement of the hub matches that of the shaft; and at least one conductor disk received in the receiving space of the hub and may function as a resistor when an electric current flows therethrough.
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公开(公告)号：US10749390B2
公开(公告)日：2020-08-18
申请号：US15400531
申请日：2017-01-06
发明人： Jacek F. Gieras
摘要： A line start synchronous-reluctance (LSSRM) brushless motor includes a stator that is arranged at an inner circumferential surface of a motor body and that extends longitudinally along an axis to define a central opening. A rotor assembly is disposed in the central opening. The rotor assembly includes a rotor that is configured to rotate via a shaft, and that is surrounded by the stator to define an air gap between an outer edge of the rotor and the stator. The rotor assembly further includes a plurality rotor slots arranged along the circumference of the outer edge, and at least one magnetic flux barrier aligned with a group of opposing rotor slots.
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公开(公告)号：US10680473B2
公开(公告)日：2020-06-09
申请号：US15388842
申请日：2016-12-22
发明人： Ming-Mao Hsu
摘要： An electric motor rotor mechanism includes a plurality of rotor bars and a rotor core. The rotor bars are disposed on the rotor core. The rotor core has a plurality of lines of barriers and a plurality of flux barrier holes. Each of the lines of barriers extends from one of the rotor bars to another one of the rotor bars. The flux barrier holes are arranged along the lines of barriers. Each of the flux barrier holes is a magnetic flux barrier. An area between each adjacent flux barrier hole is a magnetic flux path.
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公开(公告)号：US20200110133A1
公开(公告)日：2020-04-09
申请号：US16496863
申请日：2018-03-06
申请人： ABB Schweiz AG
发明人： Pedro Rodriguez , Subrat Sahoo
摘要： A rotor bar fault in a rotor of an electrical machine having a plurality of rotor bars and an end ring configured to short circuit the rotor bars. The method includes the steps of measuring a first temperature at a first end ring location, and measuring a second temperature at a second end ring location, the second end ring location being different from the first end ring location. As broken rotor bars cause a non-uniform temperature distribution in the end ring, the detection of rotor bar faults can be based on monitored temperatures at different end ring locations.
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公开(公告)号：US10541574B2
公开(公告)日：2020-01-21
申请号：US15750389
申请日：2016-07-01
申请人： ABB Schweiz AG
发明人： Jere Kolehmainen , Tero Känsäkangas
摘要： A rotor for an electric machine, wherein the rotor comprises a plurality of stack elements and each of the stack elements includes material of first magnetic conductance. Each of the stack elements includes a plurality of sectorial sections distributed round a rotational axis of the rotor. Each of the sectorial sections includes one or more flux barriers. At least one of the one or more flux barriers has a difference associated with filing of an electrically conductive material of third magnetic conductance in different sectorial halves of a common sectorial section, the first magnetic conductance being larger than the third magnetic conductance.
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公开(公告)号：US10396608B2
公开(公告)日：2019-08-27
申请号：US15501758
申请日：2015-08-04
发明人： Daniel Gontermann , Boris Janjic , Michael Koenen , Jochen Schaab , Axel Schunk
摘要： A rotor for a reluctance machine and a method of producing a rotor for a reluctance machine is provided. The rotor is formed as a soft magnetic element which is cylindrical in shape. The soft magnetic element has recesses for forming flux barriers, one or more flux barriers being at least partially filled with a filler material, and the filler material of said flux barriers extending up to the rotor periphery and forming part of the rotor periphery.
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