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公开(公告)号：US12132354B2
公开(公告)日：2024-10-29
申请号：US17061568
申请日：2020-10-01
申请人： HL MANDO CORPORATION
CPC分类号： H02K1/2766 , H02K1/02 , H02K1/246 , H02K21/14 , H02K29/03
摘要： A rotor assembly of a motor is configured to be rotatable relative to a stator. The rotor assembly may comprise a permanent magnet rotor segment comprising permanent magnets, the permanent magnet rotor segment configured to be rotatable by a magnetic field generated by the permanent magnets; and a reluctance rotor segment comprising flux barriers, the reluctance rotor segment configured to be rotatable by magnetic reluctance formed by the flux barriers. The permanent magnet rotor segment and the reluctance rotor segment are axially stacked relative to each other so that at least a part of a first torque ripple generated by the permanent magnet rotor segment and at least a part of a second torque ripple generated by the reluctance rotor segment can cancel each other. The permanent magnet rotor segment may be a rare earth permanent magnet rotor, and the reluctance rotor segment may be a synchronous reluctance rotor.
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公开(公告)号：US12132353B2
公开(公告)日：2024-10-29
申请号：US17266617
申请日：2019-08-06
申请人： NIDEC CORPORATION
发明人： Sheng-Chan Yen , Hsin-Nan Lin , Ta-Yin Luo , Guo-Jhih Yan , Yu-Wei Hsu , Huu-Tich Ngo , Cheng-Tsung Liu
CPC分类号： H02K1/246 , H02K1/2766 , H02K15/03 , H02K19/02
摘要： A rotor includes a rotor core that is made of electromagnetic steel sheets rotating around a central axis and laminated in an axial direction, and that has multiple flux barriers penetrating the electromagnetic steel sheets along the axial direction. At least some of the multiple flux barriers are provided with a first penetrating portion and a second penetrating portion arranged in the radial direction, the first penetrating portion housing a magnet and the second penetrating portion housing a conductive non-magnetic conductor.
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公开(公告)号：US12095311B2
公开(公告)日：2024-09-17
申请号：US17605470
申请日：2019-12-25
发明人： Yusheng Hu , Bin Chen , Yong Xiao , Jinfei Shi , Qinhong Yu , Xia Li
CPC分类号： H02K1/246 , H02K19/02 , H02K29/03 , H02K2213/03
摘要： The present disclosure provides a direct starting synchronous reluctance motor rotor, and a motor. The direct starting synchronous reluctance motor rotor comprises: a rotor core provided with a plurality of slit grooves, two filling grooves are respectively disposed at two ends of each of the slit grooves to form a magnetic barrier layer, a first end of the filling groove being disposed adjacent to the slit groove, a second end of the filling groove being disposed to be extended outwards an outside of the rotor core, a beveled edge is disposed on the second end of at least one of the filling grooves away from a d-axis of the rotor core, so that a d-axis flux of the rotor core will not suddenly change when entering a stator along a channel formed at the beveled edge. With this arrangement, a reluctance torque ripple of the motor can be reduced, thereby reducing generated vibration noise, increasing a d-axis inductance and a flux difference between the d-axis and a q-axis, generating a greater reluctance torque, increasing an output torque of the motor with the rotor, and improving a motor efficiency.
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公开(公告)号：US12051941B2
公开(公告)日：2024-07-30
申请号：US17669843
申请日：2022-02-11
发明人： Bin Chen , Yusheng Hu , Tong Tong , Suhua Lu , Keliang Liao , Yang Li , Yong Wang
CPC分类号： H02K1/246 , H02K1/2766 , H02K19/103 , H02K2213/03
摘要： Disclosed is a synchronous reluctance motor. The synchronous reluctance motor includes: a stator core and a rotor core, where the stator core includes stator teeth, the rotor core includes a plurality of magnetic barrier groups arranged in a circumferential direction, each of the magnetic barrier groups includes a plurality of magnetic flux barriers arranged at intervals in a radial direction, a magnetic conduction channel is defined by every two adjacent magnetic flux barriers on a same pole, and a relationship between a quantity of the stator teeth Ns, a quantity of layers Bs of the magnetic flux barriers on each pole, and a quantity of rotor poles 2p is as follows: Ns/2p =Bs+1.
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公开(公告)号：US20240204604A1
公开(公告)日：2024-06-20
申请号：US18286146
申请日：2022-05-17
发明人： Silko FEUSTEL , Jerome RAGOT , Yann TREMAUDANT
摘要： A rotor includes a magnetic field-generating component for producing a rotor magnetic field and a rotor core for holding the component. The rotor core has an annular rotor yoke and at least two rotor poles which are arranged on the rotor yoke and are configured in multiple parts, and each of which has a rotor tooth integrally formed on the rotor yoke and a pole shoe that is separate from the rotor tooth for arranging the component on the corresponding rotor tooth. The pole shoes are pressed radially against the respective rotor tooth, and the rotor has auxiliary joining parts, each of which is configured to fix at least one pole shoe to the corresponding rotor tooth by a force-fitting connection and which are at least partly arranged in respective pole gaps between two rotor poles and are secured to the rotor yoke by at least one connection element.
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公开(公告)号：US20240204593A1
公开(公告)日：2024-06-20
申请号：US18084216
申请日：2022-12-19
CPC分类号： H02K1/246 , H02K1/04 , H02K15/022 , H02K15/12
摘要： A rotor for a reluctance machine includes a rotor body having cavities defined by inner surfaces of the rotor body, a filler disposed within the cavities, and an adhesive coating that covalently bonds the filler to the inner surfaces of the rotor body. The adhesive coating exhibits a composite structure including a continuous matrix component and a discontinuous organic component dispersed throughout the matrix component, wherein the matrix component comprises an inorganic siloxane network and the organic component comprises a plurality of organic groups bonded to the inorganic siloxane network. The adhesive coating is formed on the inner surfaces of the rotor body by depositing a precursor composition on the inner surfaces of a rotor body and exposing the precursor composition to a plasma. The precursor composition comprises an organofunctional silane or a hydrolysate thereof.
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公开(公告)号：US20240204592A1
公开(公告)日：2024-06-20
申请号：US18573248
申请日：2022-06-21
发明人： Alessandro Tassi
CPC分类号： H02K1/24 , H02K1/02 , H02K15/022 , H02K15/12
摘要： A rotor (1) with N poles, wherein N is an even integer, wherein said rotor (1) is devoid of permanent magnets comprising rare earth elements and comprises a cylindrical body (2) and a filling material (16). The cylindrical body (2) extends along a body axis (X) and—in a plane perpendicular to the body axis (X)—delimits N adjacent angular sectors (4, 6). Each angular sector (4, 6) delimits cylindrical cavities (8, 12, 14, 8′, 12′, 14′) which have curvilinear cross-sections, where concave surfaces (18, 20, 22, 18′, 20′, 22′) of said cylindrical cavities (8, 12, 14, 8′, 12′, 14′) are directed in the opposite direction to the body axis (X). The filling material (16) fills at least partly the cylindrical cavities (8, 12, 14, 8′, 12′, 14′) and comprises or consists of a polymer matrix. At least one angular sector (6) delimits cylindrical cavities (8′, 12′, 14′) with a first geometry (type A) and at least one second angular sector (4) delimits cylindrical cavities (8, 12, 14) with a second geometry (type B) different from said first geometry. The first angular sector (6) is arranged angularly alternating with the second angular sector (4).
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公开(公告)号：US12000402B2
公开(公告)日：2024-06-04
申请号：US17434762
申请日：2020-07-15
发明人： Junjie Wang , Xiaowei Zhou
IPC分类号： F04D13/06 , F04D29/02 , F04D29/047 , H02K1/22 , H02K1/24 , F04D29/043 , H02K7/14
CPC分类号： F04D13/0606 , F04D13/06 , F04D13/064 , F04D29/026 , F04D29/0473 , H02K1/22 , H02K1/246 , F04D29/043 , F05D2210/11 , F05D2300/43 , H02K7/14
摘要： An electric water pump including a rotor assembly, wherein the rotor assembly includes an iron core body having a central through-hole, a plurality of magnetic plates disposed inside the iron core body, a first plastic coating layer for enclosing the iron core body, and a second plastic coating layer. At least one protruding rib is provided on a top surface and/or a bottom surface of the first plastic coating layer, a recess matching the protruding rib is provided on the second plastic coating layer, and the first plastic coating layer can drive the second plastic coating layer to rotate relative to an axis of the central through-hole of the iron core body.
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公开(公告)号：US11923729B2
公开(公告)日：2024-03-05
申请号：US17816876
申请日：2022-08-02
IPC分类号： H02K11/215 , H01L21/67 , H01L21/677 , H01L21/687 , H02K1/14 , H02K1/24 , H02K5/128
CPC分类号： H02K11/215 , H01L21/67259 , H01L21/67706 , H01L21/67742 , H01L21/68707 , H02K1/146 , H02K1/24 , H02K5/128
摘要： A transport apparatus comprising a housing, a variable reluctance drive mounted to the housing, and at least one transport arm connected to the variable reluctance drive where the drive includes at least one rotor having salient poles of magnetic permeable material and disposed in an isolated environment, at least one stator having salient pole structures each defining a salient pole with corresponding coil units coiled around the respective salient pole structure and disposed outside the isolated environment where the at least one salient pole of the at least one stator and the at least one salient pole of the rotor form a closed magnetic flux circuit between the at least one rotor and the at least one stator, at least one seal partition configured to isolate the isolated environment; and at least one sensor including a magnetic sensor member connected to the housing, at least one sensor track connected to the at least one rotor, where the at least one seal partition is disposed between and separates the magnetic sensor member and the at least one sensor track so that the at least one sensor track is disposed in the isolated environment and the magnetic sensor member is disposed outside the isolated environment.
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公开(公告)号：US20240055917A1
公开(公告)日：2024-02-15
申请号：US18382667
申请日：2023-10-23
申请人： Bühler Motor GmbH
发明人： Igor Pepelyaev , Sören Rebel , Tobias Roth , Thomas Peterreins
IPC分类号： H02K1/24 , H02P6/20 , H02P6/16 , H02K11/215
CPC分类号： H02K1/243 , H02P6/20 , H02P6/16 , H02K11/215
摘要： A method for starting up a rotor of a single-phase claw-pole motor, wherein the claw-pole motor comprises a permanently excited rotor which executes a movement in a running direction in nominal operation, an electronically commutated stator and a Hall sensor for determining the relative rotor position, wherein the method comprises the steps of generating a pulse for moving the rotor in the direction opposite to the running direction by energizing a stator winding on the basis of an inverted Hall sensor signal; and starting up the rotor for movement in the running direction by energizing a stator winding on the basis of a Hall sensor signal.
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