Patents by Inventor Suhua LU

Suhua LU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11799333
    Abstract: A permanent magnet auxiliary synchronous reluctance motor includes a stator portion and a rotor portion. The stator portion includes a stator core and a winding embedded in the stator core. The stator core is provided with a stator tooth and a stator slot. The rotor portion is provided inside the stator portion; a rotor body of the rotor portion is provided with a plurality of permanent magnet slot groups which are evenly arranged along a circumferential direction of the rotor body; each of the permanent magnet slot groups is provided with multiple layers of permanent magnet slots; a distance between end portions of adjacent permanent magnet slots between adjacent permanent magnet slot groups is less than or equal to a width of a stator tooth boot of the stator tooth, and the number of slots per pole and per phase of the motor is two or three.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 24, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Yusheng Hu, Bin Chen, Yong Xiao, Tong Tong, Suhua Lu
  • Patent number: 11770038
    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.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 26, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Hui Huang, Yusheng Hu, Bin Chen, Tong Tong, Yong Xiao, Suhua Lu
  • Patent number: 11705767
    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.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 18, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Hui Huang, Yusheng Hu, Bin Chen, Yong Xiao, Tong Tong, Suhua Lu
  • Patent number: 11699930
    Abstract: Disclosed are a rotor structure, a permanent magnet auxiliary synchronous reluctance motor, and an electric vehicle. The rotor structure includes a rotor body provided with a permanent magnet slot group; the permanent magnet slot group includes an outer layer of permanent magnet slot and an inner layer of permanent magnet slot; a magnetic conduction channel is formed between the outer layer of permanent magnet slot and the inner layer of permanent magnet slot; the magnetic conduction channel is provided with a connection hole.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 11, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Yong Xiao, Yusheng Hu, Bin Chen, Tong Tong, Suhua Lu
  • Patent number: 11695305
    Abstract: Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric vehicle. The rotor structure includes: a rotor body provided with a permanent magnet slot group, the permanent magnet slot group including a permanent magnet slot, a first segment and a second segment of the permanent magnet slot being arranged to extend towards an outer edge of the rotor body, and an intermediate portion of the permanent magnet slot being arranged to protrude towards a side where a shaft hole of the rotor body is disposed; and a permanent magnet arranged in the permanent magnet slot, the permanent magnet including a plurality of permanent magnet segments, and partial lengths of the permanent magnet segments gradually decreasing outwards along a radial direction of the rotor body.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 4, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Yusheng Hu, Bin Chen, Yong Xiao, Tong Tong, Suhua Lu
  • Patent number: 11689071
    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.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: June 27, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Yusheng Hu, Tong Tong, Suhua Lu, Yong Xiao, Bin Chen
  • Patent number: 11664692
    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.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 30, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Hui Huang, Yusheng Hu, Bin Chen, Yong Xiao, Tong Tong, Suhua Lu
  • Patent number: 11637464
    Abstract: A rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric vehicle are provided. The rotor structure includes a rotor body. A permanent magnet groove group is provided on the rotor body, the permanent magnet groove group includes an outer layer permanent magnet groove and an inner layer permanent magnet groove, and a magnetic conduction channel is formed between the outer permanent magnet groove and the inner layer permanent magnet groove which are adjacent. A deflection segment is formed on at least one end of the magnetic conduction channel, and a distance from the deflection segment to a quadrature-axis of the rotor body is decreased gradually outward in a radial direction, so that an end of the magnetic conduction channel is disposed near the quadrature-axis.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: April 25, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Mingzhu Dong, Yusheng Hu, Yong Xiao, Bin Chen, Tong Tong, Suhua Lu
  • Patent number: 11594922
    Abstract: The present disclosure provides a rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric vehicle. A rotor structure includes a rotor body. The rotor body has magnetic steel slot groups. Each of the magnetic steel slot groups includes an outer layer magnetic steel slot including: a first outer layer magnetic steel slot segment, a second outer layer magnetic steel slot segment, a first bent slot, and a second bent slot. The first outer layer magnetic steel slot segment and the second outer layer magnetic steel slot segment are arranged along a radial direction of the rotor body and are opposite to each other. Extended lines of a length directional geometric centerline of the first outer layer magnetic steel slot segment and a length directional geometric centerline of the second outer layer magnetic steel slot segment define a first angle.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: February 28, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Mingzhu Dong, Yusheng Hu, Tong Tong, Bin Chen, Yong Xiao, Suhua Lu
  • Patent number: 11575290
    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.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 7, 2023
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Keliang Liao, Tong Tong, Suhua Lu, Bin Chen
  • Patent number: 11456634
    Abstract: The present disclosure provides a rotor structure, a permanent magnet assisted synchronous reluctance motor and an electric car. The rotor structure includes: a rotor body opened with a group of permanent magnet slots, wherein the group of permanent magnet slots include an inner-layer permanent magnet slot and an outer-layer permanent magnet slot which are arranged at intervals outwards along a radial direction of the rotor body; an inner-layer permanent magnet disposed within the inner-layer permanent magnet slot; an outer-layer permanent magnet disposed within the outer-layer permanent magnet slot, wherein the inner-layer permanent magnet and the outer-layer permanent magnet are arranged staggeredly.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 27, 2022
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Yusheng Hu, Bin Chen, Yong Xiao, Suhua Lu, Tong Tong
  • Patent number: 11418072
    Abstract: The present disclosure provides a permanent magnet assisted synchronous reluctance motor and an electric car having the same. The permanent magnet assisted synchronous reluctance motor includes: a stator body, wherein a plurality of stator teeth are provided on an inner circumferential surface of the stator body, and a stator slot is formed between two adjacent stator teeth; a rotor body disposed within the stator body and opened with a group of permanent magnet slots, which include a plurality of permanent magnet slots, wherein a first end of at least one of the plurality of permanent magnet slots and an end of one of the plurality of stator teeth are arranged oppositely, and a second end of the permanent magnet slot and the stator slot formed by two adjacent stator teeth among remaining stator teeth are arranged oppositely.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 16, 2022
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Jianming Tan, Yusheng Hu, Bin Chen, Yong Xiao, Suhua Lu, Tong Tong
  • Publication number: 20220166269
    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.
    Type: Application
    Filed: February 11, 2022
    Publication date: May 26, 2022
    Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Bin CHEN, Yusheng HU, Tong TONG, Suhua LU, Keliang LIAO, Yang LI, Yong WANG
  • Publication number: 20210257869
    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.
    Type: Application
    Filed: December 7, 2018
    Publication date: August 19, 2021
    Inventors: Hui HUANG, Yusheng HU, Bin CHEN, Yong XIAO, Tong TONG, Suhua LU
  • Publication number: 20210242742
    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.
    Type: Application
    Filed: January 7, 2019
    Publication date: August 5, 2021
    Inventors: Keliang Liao, Tong Tong, Suhua Lu, Bin Chen
  • Patent number: 11075553
    Abstract: A synchronous reluctance motor rotor, including: a rotor core, wherein the rotor core includes a plurality of magnetic-flux barrier groups, and each magnetic-flux barrier group includes at least two magnetic-flux barriers provided at an interval in a radial direction of the rotor core; the rotor core further includes magnetic bridges, the magnetic bridges are disposed within the magnetic-flux barriers and connect inner surfaces of the magnetic-flux barriers with outer surfaces of the magnetic-flux barriers, and a distance between the magnetic bridges and an outer edge of the rotor core is no less than a predetermined distance.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: July 27, 2021
    Assignee: GREE GREEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
    Inventors: Tong Tong, Yusheng Hu, Bin Chen, Suhua Lu
  • Publication number: 20210167644
    Abstract: Rotor structure, permanent magnet auxiliary synchronous reluctance motor and electric vehicle. The rotor structure includes: a rotor body provided with a permanent magnet slot group, the permanent magnet slot group including a permanent magnet slot, a first segment and a second segment of the permanent magnet slot being arranged to extend towards an outer edge of the rotor body, and an intermediate portion of the permanent magnet slot being arranged to protrude towards a side where a shaft hole of the rotor body is disposed; and a permanent magnet arranged in the permanent magnet slot, the permanent magnet including a plurality of permanent magnet segments, and partial lengths of the permanent magnet segments gradually decreasing outwards along a radial direction of the rotor body.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 3, 2021
    Inventors: Yusheng HU, Bin CHEN, Yong XIAO, Tong TONG, Suhua LU
  • Publication number: 20210091615
    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.
    Type: Application
    Filed: December 7, 2018
    Publication date: March 25, 2021
    Inventors: Yusheng HU, Tong TONG, Suhua LU, Yong XIAO, Bin CHEN
  • Publication number: 20210057946
    Abstract: Disclosed are a rotor structure, a permanent magnet auxiliary synchronous reluctance motor, and an electric vehicle. The rotor structure includes a rotor body provided with a magnetic steel slot group; the magnetic steel slot group includes an outer layer of magnetic steel slot and an inner layer of magnetic steel slot; a magnetic conduction channel is formed between the outer layer of magnetic steel slot and the inner layer of magnetic steel slot; the magnetic conduction channel is provided with a connection hole.
    Type: Application
    Filed: December 7, 2018
    Publication date: February 25, 2021
    Inventors: Yong XIAO, Yusheng HU, Bin CHEN, Tong TONG, Suhua LU
  • Publication number: 20210044167
    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.
    Type: Application
    Filed: December 7, 2018
    Publication date: February 11, 2021
    Inventors: Hui HUANG, Yusheng HU, Bin CHEN, Yong XIAO, Tong TONG, Suhua LU