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1.发明授权公开(公告)号：US11689071B2
公开(公告)日：2023-06-27
申请号：US16975083
申请日：2018-12-07
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Inventor： Yusheng Hu , Tong Tong , Suhua Lu , Yong Xiao , Bin Chen
CPC classification number: H02K1/276 , B60K1/00 , H02K2213/03
Abstract: A rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric vehicle. The rotor structure includes a rotor body. The rotor body is provided with an outer magnetic steel slot; an inner magnetic steel slot; a first bent slot, a first end of the first bent slot being in communication with the outer magnetic steel slot, and a second end of the first bent slot extending towards an outer edge of the rotor body and spreading gradually away from a direct axis of the rotor body; and a third bent slot, a first end of the third bent slot being in communication with the inner magnetic steel slot and being arranged to be adjacent to the first bent slot, and a second end of the third bent slot extending towards the outer edge of the rotor body and spreading gradually away from a straight axis.
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2.发明授权公开(公告)号：US11664692B2
公开(公告)日：2023-05-30
申请号：US16981258
申请日：2018-12-07
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
CPC classification number: H02K1/2766 , H02K19/103 , H02K21/12 , H02K29/03 , H02K2213/03
Abstract: Disclosed are a rotor structure, a permanent magnet auxiliary synchronous reluctance motor, and an electric vehicle. The rotor structure includes a rotor body; the rotor body is provided with permanent magnet slot groups each including multiple layers of permanent magnet slots; the multiple layers of permanent magnet slots include a first permanent magnet slot; and the first permanent magnet slot includes a first permanent magnet slot section and a first bent slot. A first end of the first bent slot is connected to a second end of the first permanent magnet slot section, a second end of the first bent slot is arranged to extend toward an outer edge of the rotor body.
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公开(公告)号：US11251665B2
公开(公告)日：2022-02-15
申请号：US16755122
申请日：2018-10-29
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Inventor： Yusheng Hu , Bin Chen , Bo Zhou , Min Wang , Yong Xiao
Abstract: The present invention discloses a motor rotor and a permanent magnet motor. The motor rotor includes a rotor core and a plurality of magnetic poles provided in the rotor core, wherein each magnetic pole includes a first permanent magnet, a second permanent magnet and a third permanent magnet; the first permanent magnet being arranged on a central position of the magnetic pole on which said first permanent magnet is located, the second permanent magnet being arranged at two sides of the first permanent magnet, the third permanent magnet being arranged at one side of the second permanent magnet far away from the first permanent magnet; the coercivity of the first permanent magnet is smaller than that of the second permanent magnet and that of the third permanent magnet; and the third permanent magnet is arranged on a q axis of the motor.
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公开(公告)号：US12173717B2
公开(公告)日：2024-12-24
申请号：US18011671
申请日：2021-05-07
Applicant: Gree Electric Appliances, Inc. of Zhuhai
Inventor： Yusheng Hu , Bin Chen , Xiaobo Zhang , Jinxin Jia , Jiuzhan Su
Abstract: A compressor includes a drive motor and a wind wheel, wherein the drive motor includes a casing and a rotor, the rotor being rotatably arranged within the casing; the wind wheel is mounted at a first axial end of the rotor. A thrust disc is also provided at the first axial end of the rotor. An axial bearing assembly is arranged between the thrust disc and the wind wheel, and the axial bearing assembly is arranged fixedly with respect to the casing. A first air gap is formed between a first end of the axial bearing assembly and the wind wheel, and a second air gap is formed between a second end of the axial bearing assembly and the thrust disc. The air compressor reduces a tolerance accumulation caused by part cooperation between axial bearing assemblies, and more precisely ensures effective working clearances.
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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
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Inventor： Yusheng Hu , Bin Chen , Yong Xiao , Jinfei Shi , Qinhong Yu , Xia Li
CPC classification number: H02K1/246 , H02K19/02 , H02K29/03 , H02K2213/03
Abstract: 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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Patent Agency Ranking
公开(公告)号：US12051941B2
公开(公告)日：2024-07-30
申请号：US17669843
申请日：2022-02-11
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Inventor： Bin Chen , Yusheng Hu , Tong Tong , Suhua Lu , Keliang Liao , Yang Li , Yong Wang
CPC classification number: H02K1/246 , H02K1/2766 , H02K19/103 , H02K2213/03
Abstract: 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：US11855488B2
公开(公告)日：2023-12-26
申请号：US17277730
申请日：2019-09-02
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
IPC: H02K1/276
CPC classification number: H02K1/276 , H02K2213/03
Abstract: A motor rotor structure including a rotor core. Multiple first permanent magnet slots are disposed in the rotor core in a circumferential direction. At least one second permanent magnet slot is disposed between every two adjacent first permanent magnet slots; each of the first permanent magnet slots and an adjacent second permanent magnet slot thereof are spaced a preset distance apart. Between two kinds of permanent magnets having different coercivities, a first kind of permanent magnet is mounted in each of the first permanent magnet slots and a second kind of permanent magnet is mounted in the second permanent magnet slot. When identical polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a more-magnetic-pole state. When contrary polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a fewer-magnetic-pole state.
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8.发明授权公开(公告)号：US11770038B2
公开(公告)日：2023-09-26
申请号：US16981255
申请日：2018-12-07
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
CPC classification number: H02K1/2766 , B60K1/00 , H02K21/14 , H02K29/03 , H02K2213/03
Abstract: A rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric vehicle. The rotor structure includes a rotor body, and permanent magnet slot groups are disposed on the rotor body; the permanent magnet slot groups each include an outer layer permanent magnet slot; and a third bent slot and a fourth bent slot are further disposed on the rotor body. A third angle is formed by a length directional geometric center line of the third bent slot and a length directional geometric center line of a first segment of the outer layer permanent magnet slot a fourth angle is formed between a length directional geometric center line of the fourth bent slot and a length directional geometric center line of a second segment of the outer layer permanent magnet slot.
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9.发明授权公开(公告)号：US11705767B2
公开(公告)日：2023-07-18
申请号：US16980350
申请日：2018-12-07
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
CPC classification number: H02K1/2766 , B60K1/00 , H02K2213/03
Abstract: A rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric vehicle, the rotor structure includes a rotor body and an outer layer permanent magnet. The rotor body is provided with a magnetic steel slot group. The magnetic steel slot group includes an outer layer magnetic steel slot. The outer layer magnetic steel slot includes a plurality of magnetic steel slot segments. At least two of the plurality of magnetic steel slot segments are arranged in a radial direction of the rotor body and are disposed oppositely at both sides of a direct axis of the rotor body. The outer layer permanent magnet is arranged in the magnetic steel slot segment, a length of the outer permanent magnet disposed in the two oppositely arranged magnetic steel slot segments is L, and a maximum distance between the two oppositely arranged magnetic steel slot segments is C, where 0.8×C≤L.
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公开(公告)号：US11575290B2
公开(公告)日：2023-02-07
申请号：US17054799
申请日：2019-01-07
Applicant: Gree Electric Appliances, Inc. of Zhuhai
Inventor： Keliang Liao , Tong Tong , Suhua Lu , Bin Chen
Abstract: The present disclosure provides a motor stator, a motor and a bus. The motor stator includes a stator tooth. The stator tooth includes a tooth root and a tooth crest. The tooth crest is provided on the tooth root. The tooth crest includes a first tooth crest part and a second tooth crest part. The first tooth crest part and the second tooth crest part are provided on two sides of the tooth root along the circumference of the motor stator, respectively, and a tooth crest air gap is formed between the first tooth crest part and the second tooth crest part. According to the present disclosure, the motor stator is adapt to reduce magnetic flux leakage, and enhance the utilization rate of a permanent magnet and output torque.
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