Patents by Inventor Chui You ZHOU

Chui You ZHOU 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: 10637304
    Abstract: A single phase permanent magnet motor includes a stator core, windings wound around the stator core, and a permanent magnet rotor. The stator core includes an end portion and two spaced arm portions. Each arm portion includes a connecting arm connected to the end portion and a pole claw formed at a distal end of the connecting arm. The two pole claws define a space for receiving the rotor. The pole claws surround the space and form an arc pole surface. The arc pole surface is recessed to form a startup groove located at a central axis of the pole claw. The two pole claws are spaced apart to form two slot openings there between. A line connecting the two slot openings is orthogonal to the central axis of the pole claw.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 28, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10630155
    Abstract: A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer yoke, teeth extending inwardly from the outer yoke, and pole shoes extending from inner ends of the teeth. The rotor is received in a space cooperatively defined by the pole shoes. The rotor includes circumferentially arranged permanent magnetic poles. An outer circumferential surface of the permanent magnetic poles is concentric with an inner circumferential surface of the pole shoes, such that a uniform air gap is formed between the pole shoes and magnetic poles. The single phase permanent magnet motor forms the uniform air gap, which reduces the vibration and noise. The pole shoes form invisible positioning slots, which avoids the negative effect of the positioning slots to the thickness of the air gap and reduces the startup dead point.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 21, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10566855
    Abstract: A PMDC motor includes a housing, a stator magnet fixed to the inner circumferential surface of the housing, a rotor core received in the housing and facing the stator magnet, and rotor windings wound around the rotor core. The rotor core includes a plurality of rotor teeth, each of the rotor teeth including a tooth body and a tooth tip. A ratio of the outer diameter of the rotor core to an outer diameter of the housing is in the range of 0.6 to 0.67. Compared to the existing PMDC motor, the PMDC motor of the present invention can satisfy the same performance requirement, while reducing the size and weight of the rotor core and hence the weight of the rotor windings. In this way, the total weight and hence the moment of inertia of the rotor is reduced, thereby effectively reducing the noise generated during operation of the motor.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: February 18, 2020
    Assignee: Johnson Electric International AG
    Inventors: Yue Li, James Ching Sik Lau, Chui You Zhou, Gang Li, Xiao Ning Zhu, Ya Ming Zhang, Yong Gang Zhang
  • Patent number: 10530199
    Abstract: A single phase permanent magnet motor includes a stator core, windings, and a permanent magnet rotor. The stator core includes an end portion and two spaced arm portions each including a connecting arm and a pole claw. Each pole claw has a long pole tip and a short pole tip, and forms a pole surface. The long pole tip of each pole claw corresponds to the short pole tip of the other pole claw with a slot opening formed there between. The slot opening causes the arc pole surface to be discontinued along a circumferential direction, and the arc pole surface is recessed inwardly to form a startup groove.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: January 7, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10516324
    Abstract: A step motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring shaped yoke and a plurality of teeth extending inwardly from the ring shaped yoke. The rotor is rotatably mounted with respect to the stator. The rotor includes a permanent magnet member surrounded by the plurality of teeth. The stator windings are wound around the plurality of teeth to form a plurality of stator poles. The stator core are formed from a core strip with High magnetic conductive, the core strip are bent to enable opposite ends of the core strip to be connected with each other. The step motor of the present invention has a simplified structure and enhanced efficiency.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 24, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10491058
    Abstract: A single phase permanent magnet motor includes a stator and a rotor relative to the stator. The stator includes a stator core with a winding wound therearound. The stator core includes stacked first and second stator core laminations. The first stator core lamination includes a plurality of first pole shoes. The second stator core lamination includes a plurality of second pole shoes. The structures of the first pole shoes and the second pole shoes are different. The first pole shoes and the second pole shoes are stacked substantially along the axial direction of the motor. The present invention reduces vibration and noise caused by the use of a single type of core laminations in the prior art.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 26, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10461618
    Abstract: A PMDC motor has a housing, a stator magnet disposed in an interior of the housing, and a rotor core disposed within the stator magnet. A ratio of an outer diameter of the rotor core to the outer diameter of the housing is from 0.60 to 0.67. The noise of the motor during operation is reduced by increasing the thickness of the stator magnet, reducing the outer diameter of the rotor core, reducing the air gap between the magnet and the rotor core and reducing the rotational inertia of the rotor core. The motor is particularly suited for use in vehicle HVAC systems where low noise is an important requirement.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: October 29, 2019
    Assignee: Johnson Electric International AG
    Inventors: Yue Li, Chui You Zhou, Gang Li, Yong Wang, Yong Li, Hong Wei Zhang
  • Patent number: 10461590
    Abstract: A single phase permanent magnet motor includes a stator. The stator includes a stator core and windings. The stator core includes a ring portion, tooth bodies extending radially from the ring portion, and a pole shoe extending from a distal end to two circumferential sides of each tooth body. Each pole shoe defines a positioning slot. A center of each positioning slot is offset from a center of symmetry of one adjacent tooth body so that a torque fluctuation of an output torque of the single phase permanent magnet motor during operation is less than 50%. As a result, the motor vibration and noise are small.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: October 29, 2019
    Assignee: Johnson Electric International AG
    Inventors: Yue Li, Jie Chai, Chui You Zhou, Tao Zhang, Yong Wang, Yong Li
  • Patent number: 10454354
    Abstract: A single phase motor includes a rotor including magnetic poles and a stator comprising a stator core and a winding wound on the stator core. The stator core includes a plurality of stator teeth each including a tooth body and a tooth end formed at an end of the tooth body, the tooth end comprising first and second arcuate regions facing the rotor. When the winding is not energized, a first magnetic coupling between said first arcuate region and a selected magnetic pole of said rotor is greater than a second magnetic coupling between said second arcuate region and the selected magnetic pole, said first arcuate region being offset from a selected tooth body in such a way as to enable movement of said rotor to initiate in either of two opposite directions relative to said selected tooth body upon energizing the winding.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 22, 2019
    Assignee: Johnson Electric International AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10450797
    Abstract: A rolling shutter driving device includes a motor, a locking assembly and a gearbox. The motor includes a stator and a rotor. The rotor includes a rotary shaft connected to the gearbox. The rotary shaft drives through the gearbox a rolling shutter to extend or retract. The locking assembly includes a brake pad slidingly fitted on the rotary shaft and a rotary member fixedly mounted to the rotary shaft. The brake pad is circumferentially fixed relative to the stator. The brake pad is slidable relative to the rotary shaft so as to be selectively engaged with the rotary member to lock the rotary shaft and hence hold the load in position, or disengaged from the rotary member to unlock the rotary shaft.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: October 22, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Wei Zhang, Yong Gang Zhang, Ming Chen, Yong Wang
  • Patent number: 10432073
    Abstract: A medical pump includes a single phase synchronous motor, a rod piston, a cylinder for receiving the rod piston for reciprocating motion therein. The single phase synchronous motor includes a stator and a rotor rotatable relative to the stator. The rotor includes a plurality of permanent magnets. The stator comprises a stator core and a winding wound around the stator core. The stator core comprises two opposed pole portions that define there between a rotor receiving space for receiving the permanent magnets. The medical pump has a compact structure. In addition, the motor of the medical pump has a constant rotation speed and has a smaller size and less weight under the same output power conditions as traditional motors used in medical pumps. The medical pump is particularly suitable for use in atomizers.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: October 1, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yan Ling Liu, Gui Hua Li, Xiao Ning Zhu, Yong Wang
  • Patent number: 10404147
    Abstract: A stator includes a stator core including stator poles and a yoke connecting the stator poles, at least one winding wound around the stator core and connecting terminals configured to connect with an external power source to supply power to the winding and located at one end of the yoke adjacent the stator poles. A single phase motor and a ventilation fan are also provided.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: September 3, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Kok Ang Chong, Xiao Lin Zhang, Hai Yang Wang, Moola Mallikarjuna Reddy, Yue Li, Chui You Zhou, Hong Liang Yi, Yong Gang Zhang, Yong Wang
  • Patent number: 10404109
    Abstract: A stator core includes an end portion, a first pole arm, and a second pole arm. The first pole arm includes two first connecting arms extending from the end portion and spaced from each other, and two first pole claws respectively formed at ends of the first connecting arms. The first pole claws are spaced from each other with an opening formed there between. The second pole arm includes two second connecting arms axially stacked to the two first connecting arms respectively and two second pole claws respectively formed at distal ends of the two second connecting arms. The two second connecting arms are connected with each other.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: September 3, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10389187
    Abstract: A motor, a pump and a cleaning apparatus are provided. The motor includes a stator and a rotor rotatable relative to the stator. The stator includes a stator core and stator windings wound around the stator core. The stator core includes a pair of opposing poles and a yoke connected between the poles. Each pole has a pole arc surface facing the rotor, with an air gap formed between the pole arc surface and the rotor. The pair of poles includes opposing circumferential end portions spaced apart from each other, and a ratio of a distance between the circumferential end portions to a minimum width of the air gap between the pole arc surface and the rotor is less than 2.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 20, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Min Li, Chui You Zhou, Bao Ting Liu, Yong Wang, Wei Zhang, Xiao Lin Zhang
  • Patent number: 10389217
    Abstract: A fluid generating device and an electric apparatus utilizing the fluid generating device are provided. The fluid generating device includes a motor and an impeller driven by the motor. The motor is a single phase direct current brushless motor which includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer ring portion, teeth extending inwardly from the outer ring portion, a pole shoe formed at the tooth. Slot openings are formed between the pole shoes. The rotor is received in a receiving chamber defined by the pole shoes. Inner surfaces of the pole shoes and the rotor form therebetween a substantially even air gap. The presence of even air gap can reduce the cogging torque of the motor, thus reducing the startup current and noise of the motor.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: August 20, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Kwong Yip Poon, Chui You Zhou, Jie Chai, Wen Liang Li, Lin Ping Gui, Tao Zhang, Qiang Zhou
  • Patent number: 10361613
    Abstract: A single phase motor includes a stator and a rotor. The stator includes a stator core. The stator core includes an outer yoke and a plurality of stator teeth. Each stator tooth includes a winding portion and a pole shoe coupled to the winding portion. The rotor includes a rotor core and a plurality of permanent magnets. The permanent magnets are evenly spaced and embedded in the rotor core. An outer circumferential wall of the rotor core is an irregular cylinder and includes a plurality of spaced circular arc surfaces and transition surfaces. The starting of the single phase motor is stable and reliable. The present invention also provides a rotor for the single phase motor.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 23, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Tao Zhang, Jie Chai, Chui You Zhou
  • Patent number: 10359080
    Abstract: A load connecting mechanism includes a mounting portion, a contact portion, and a force-exerting portion. The mounting portion is configured to mount the load connecting mechanism to a power source and a load, respectively. The contact portion is disposed on the mounting portion and includes two slidably coupled contact faces. The force-exerting portion is configured to provide a force to the contact faces in an axial direction of the power source to make the contact faces closely slidably couple to each other. Through the slidable coupling relationship between the contact faces, power of the power source is progressively transmitted to the load and finally drives the load to rotate in synchronization with the power source. The present invention further provides a motor driving assembly and a fan. The mechanism can satisfy the needs of bidirectional rotation of a load such as a fan and of large startup torque.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 23, 2019
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Chi Ping Sun, Bao Ting Liu, Jing Ning Ta, Chui You Zhou, Fei Xin, Shing Hin Yeung, Xiu Wen Yang, Shu Juan Huang
  • Patent number: 10329826
    Abstract: A driving mechanism drives a vehicle window to move up and down. The driving mechanism includes a housing, and a driving assembly and a transmission assembly. The driving assembly is engaged with the transmission assembly. The driving assembly is partially received in the housing. The transmission assembly includes a first transmission member connected to the driving assembly, a second transmission member engaging with the first transmission member, and a planetary gear set. The planetary gear set connects to an external device. The driving assembly drives the first transmission member which in turn drives the second transmission member to rotate. The second transmission member drives the planetary gear set which in turn drives the vehicle window to move.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 25, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Jing Ning Ta, Yong Jun Zhao, Qiu Mei Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10312753
    Abstract: A single phase permanent magnet motor includes a stator core and a permanent magnet rotor rotatably disposed in the stator core. The stator core includes an end portion and a pole arm extending from the end portion. The pole arm includes two connecting arms connected to the end portion and two pole claws formed at distal ends of the connecting arms. The permanent magnet rotor is disposed between the two pole claws. The rotor comprises a rotor core and a plurality of permanent magnets embedded in the rotor core, and the rotor core is made of a magnetic material.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 4, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10299559
    Abstract: A single phase motor and a hair dryer are provided. The motor includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer ring portion, teeth extending inwardly from the outer ring portion, and two pole shoes extending from a distal end of each tooth. A winding slot is formed between each two adjacent teeth. A slot opening is disposed between the pole shoes of the adjacent teeth, and is offset from one of the two adjacent teeth. The air supplying unit includes the single phase motor and an impeller. The startup angle and cogging torque of the motor are adjustable by adjusting the position/width of the slot opening, without the need of additional positioning slots or positioning holes defined at the pole shoes, which makes the motor structure simple.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 28, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Jie Chai, Tao Zhang, Qiang Zhou