Patents Assigned to JOHNSON ELECTRIC INTERNATIONAL AG
  • Patent number: 10323961
    Abstract: A motor driver integrated circuit comprises a central processing unit, a memory, and a multiple-time programmable memory. The multiple-time programmable memory is configured to store a motor driver program, the memory has a capacity larger than or equal to a capacity of the multiple-time programmable memory. When the motor driver integrated circuit is powered or reset, the central processing unit copies the driven program from the multiple-time programmable memory to the memory. The motor driver integrated circuit is low in cost. The present invention also provides a motor device having the motor driver integrated circuit.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 18, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chiping Sun, Qiubao Wang, Ken Wong, Enhui Wang, Haibo Jiang, Yunlong Jiang
  • 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: 10302098
    Abstract: A heating pump includes a pump housing with an inlet, an outlet, a heater, an impeller, and a motor for driving the impeller. The impeller is received in the pump housing. The heater includes connecting heads and a main body for generating heat. The main body is bent into an arc. The pump housing includes a cylindrical sidewall extending in an axial direction of the motor and a top plate sealed to an axial opening of the sidewall. The top plate is made of metal. The heater extends through and is fixed to the top plate. The connecting heads extend to an exterior of the pump housing. The main body is located in an interior of the pump housing and in contact with the top plate.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: May 28, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Jin Jin Wu, Kok Ang Chong
  • 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
  • Patent number: 10305400
    Abstract: A magnetic sensor integrated circuit is provided, which includes: a magnetic sensing element to detect change in an external magnetic field to output a magnetic field sensing signal; a signal processor to process the magnetic field sensing signal and output a magnetic field detection signal; and a current source generator to output a constant current to the magnetic sensing element. The constant current is not influenced by a temperature.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: May 28, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Guang Jie Cai, Chun Fai Wong
  • Patent number: 10294959
    Abstract: A synchronous motor, motor stator, pump and cleaning apparatus are provided. The motor stator includes a stator core and two stator windings. The stator core includes two opposing poles and a yoke having a bottom and two branches. The stator windings are respectively wound around the branches. The two stator windings are respectively formed by winding two separate electric wires. Each electric wire has an incoming terminal and an outgoing terminal. The two incoming terminals of the two stator windings are disposed at inner layers of the stator windings, and the two outgoing terminals are disposed at outer layers of the stator windings.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: May 21, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Moola Mallikarjuna Reddy, Xiao Lin Zhang
  • Patent number: 10294951
    Abstract: A liquid pump includes a motor and an impeller. The motor includes a stator, a rotor, a base body and a shaft sleeve unit supporting the rotor for rotation. The shaft sleeve unit includes a fixing member fixed in the base body, a bearing received in the fixing member and surrounding the rotary shaft, and a resilient buffering member disposed between the fixing member and the bearing. The impeller is coupled to the rotor.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 21, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Zhi Ping Fu, Moola Mallikarjuna Reddy, Kok Ang Chong
  • Patent number: 10295371
    Abstract: An electronic device and a magnetic sensor integrated circuit thereof are provided. The magnetic sensor integrated circuit includes a shell, a semiconductor substrate installed in the shell and a first to a third port extending from the shell. A rectifier and a position sensor are provided on the semiconductor substrate. The rectifier includes first and second output terminals and two input terminals respectively connected to the first and second ports. In a case that the first and second ports are positively or negatively connected to an external power supply, a voltage output by the first output terminal of the rectifier is higher than the voltage output by the second output terminal of the rectifier. The position sensor is connected to the first and second output terminals of the rectifier, and a magnetic field signal detected by the position sensor is output by the third port.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: May 21, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chi Ping Sun, Fei Xin, Ken Wong, Shing Hin Yeung, Shu Juan Huang, Yun Long Jiang, Yue Li, Bao Ting Liu, En Hui Wang, Xiu Wen Yang, Li Sheng Liu, Yan Yun Cui
  • Patent number: 10290449
    Abstract: An electric switch is provided. The electric switch comprises a contact system, an actuation element, an engaging latch, and an actuator. The actuation element moves between an initial position and an actuation position to switch and changeover the contact system. The actuation element is located in a direction of the initial position by a force of a return spring. The engaging latch locks the actuation element in the initial position or the actuation position. A non-manual unlocking between the actuation element and the engaging latch is performed by the actuator.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: May 14, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Udo Balgheim, Gerhard Fangmann
  • Patent number: 10288088
    Abstract: An impeller for an electric fan, has a central hub for connection to the rotor of an electric motor, and from which a plurality of blades extends. The hub is bowl-shaped, with an end wall which is connected to an annular lateral wall, and its end wall has a plurality of slots, spaced apart circumferentially, which are inclined in the same direction with respect to the radial direction. The inner surface of the end wall of the hub has a plurality of ribs protruding from this surface, between the slots, these ribs also being inclined in the same direction with respect to the radial direction and being adapted to serve as inner fan blades. These ribs have at least one substantially transverse cut-out or interruption in a predetermined position.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: May 14, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Giuliano Gabbin, Ermanno Procopio
  • Patent number: 10291087
    Abstract: An electric motor has a wound stator and an outer rotor. A core of the stator has outer and inner annular portions. Tooth portions extend radially outwardly from the outer annular portion. Connecting arms interconnect the outer and inner annular portions. The width of the connecting arms is less than the width of the tooth portions. The ratio of tooth height L1 to distance between the roots of adjacent teeth L3 is in the range of 1.0 and 1.3. The ratio of tooth width T3 to L3 is in the range of 0.8 and 1.0. The ratio of tooth length T1 to L3 is in the range of 0.5 and 0.6. The ratio of T3 to outer diameter of the stator core D is in the range of 0.07 and 0.1.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 14, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Mao Xiong Jiang, Jian Zhao, Guo Wei Sun, Yong Li, Yong Wang, Hong Jiang Zhao, Yue Li
  • Patent number: 10288179
    Abstract: A ball valve apparatus with an improved linearity of fluid flow therethrough is provided. The ball valve includes a valve housing including a housing inlet and a housing outlet; a valve ball receivable within the valve housing, the valve ball having a bore therethrough, a ball inlet and ball outlet of the valve ball which are in fluid communication with the bore, a fluid flow path through the ball valve apparatus being defined at least in part by the housing inlet, housing outlet, ball inlet, ball outlet and the bore. There is also provided a valve stem engagable with the valve ball and.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: May 14, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Emmanuel Vuichard, Yvan Bourqui
  • Patent number: 10280676
    Abstract: A vehicle window lift control system includes a window lift motor, a motor drive/control module, an inverter, a rotor position sensing unit, and an anti-pinch module. The window lift motor is a brushless direct current motor. The anti-pinch module detennines whether or not the vehicle window is in an anti-pinch area based on position feedback signals generated by a rotor position sensing unit that is inherently included in the brushless direct current motor. When the vehicle window is in the anti-pinch area, an obstacle judgment unit is initiated. When there is an obstacle, an anti-pinch instruction unit sends an anti-pinch instruction to the motor drive/control module, and the motor drive/control module drives the inverter according to the anti-pinch instruction to make the motor rotate reversely. The present vehicle window lift control system has the advantages of small size, low failure rate and low cost.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: May 7, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Jing Xin Shi, Yong Gang Li
  • Patent number: 10284064
    Abstract: A BLDC motor includes a stator and a rotor. The rotor includes a shaft, first and second end plates, a plurality of cores arranged between the first and second end plates, a plurality of magnets, and a housing. The cores are evenly spaced from each other in the circumferential direction. A space is formed between neighboring cores. Each space receives one magnet. The magnets are magnetized circumferentially such that side surfaces of the magnets have corresponding polarities. The housing is made of magnetically permeable material, surrounding and covering radially outer ends of the magnets and cores.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 7, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yong Bin Li, Long Shun Jiang, Xian Chun Fan
  • Patent number: 10284045
    Abstract: An electric motor has stator with a core of magnetic material, a winding frame covering the core and windings wound around the winding frame. The core has an annular yoke and a plurality of teeth that extend radially outwardly from the yoke. The winding frame is an overmolded structure and has an insulation part that covers the core, a supporting part disposed inward of the insulation part and a plurality of ribs that connect the insulation part and the supporting part. A reinforcing ring is embedded in the supporting part. The strength of the reinforcing ring is higher than the strength of the winding frame. Thus material utilization is improved and the weight of the stator is reduced while ensuring the strength of the supporting part.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 7, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Mao Xiong Jiang, Jian Zhao, Yong Wang, Yong Li, Yan Fei Liao
  • Patent number: 10277098
    Abstract: An end cap assembly for an electric motor has a brush assembly, a circuit board, an inductor and a grounded metal element. The brush assembly has a plurality of brushes. The circuit board is fixed relative to the brush assembly. The inductor is electrically connected to the circuit board. The grounded metal element is positioned between the brushes and the inductor to absorb high frequency electromagnetic radiation transmitted from the brushes to the inductor.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: April 30, 2019
    Assignee: Johnson Electric International AG
    Inventors: Chi Wai Lai, Qing Bin Luo, Gong Wu Xu, Xin Peng Wei, Xiao Lin Ren, Gui Hong Tian, Hong Wei Zhang, Xia Han
  • Patent number: 10270325
    Abstract: The present invention provides a single phase permanent magnet motor including a stator core and a permanent magnet rotor. The stator core includes an end portion and two arm portions extending from the end portion. 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 defines a receiving space. The rotor is rotatably disposed in the receiving space of the stator core. The rotor includes a rotor core made of a magnetic material and at least one permanent magnet attached to the rotor core.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: April 23, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Chui You Zhou, Yong Wang, Yong Li
  • Patent number: 10270374
    Abstract: A motor driving circuit, the motor itself, and a motor driving method are disclosed. The circuit includes a controllable bidirectional alternating current (AC) switch and a processing unit, a voltage polarity of the AC power source and zero voltage crossing point of an AC power source being detected, together with a magnetic pole position of a permanent-magnet rotor, to govern the operation of the AC switch. When the controllable bidirectional AC switch is to be switched on, a trigger pulse is output after a delay time after the zero voltage crossing point, such that a phase difference between a back electromotive force and current flowing through the stator winding is decreased.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: April 23, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chi Ping Sun, Fei Xin, Shing Hin Yeung, Xiu Wen Yang, Shu Juan Huang, Yun Long Jiang
  • Patent number: 10267319
    Abstract: A blower includes a housing, and an impeller and a motor received in the housing. The motor drives the impeller to rotate. The motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and teeth extending from the yoke. A distal end of each of the teeth forms a tooth tip, with a slot opening formed between each two adjacent tooth tips. The rotor includes a permanent magnet forming a plurality of magnetic poles. The stator and the rotor define an air gap therebetween. A circumferential width of the slot opening is equal to or less than two times of a radial width of the air gap.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 23, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Jun Jie Chu, Fu Ping Zhang, Yan Fang Zhi
  • Patent number: 10267331
    Abstract: A liquid pump includes a housing, a motor fixed in the housing, and an impeller driven by the motor. The motor includes a stator and a rotor rotatable relative to the stator. The impeller is connected to a rotor of the motor. The housing includes a guide wall surrounding the stator, and a guide face extending outwardly from an outer surface of the guide wall to guide a liquid flowing to the guide wall to flow in a direction away from the stator, thus ensuring the electrical safety of the liquid pump.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 23, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Zhi Ping Fu, Moola Mallikarjuna Reddy, Kok Ang Chong