Patents Assigned to JOHNSON ELECTRIC INTERNATIONAL AG
  • Patent number: 10566924
    Abstract: A motor-driven integrated circuit comprises a PWM output unit and an overcurrent comparator coupled with the PWM output unit. The overcurrent comparator receives a detection signal and compares the detection signal with a reference value. When the detection signal is larger than the reference value, the overcurrent comparator outputs an overcurrent protection signal to control the PWM output unit enter an overcurrent protection mode.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: February 18, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chiping Sun, Qiubao Wang, Ken Wong, Enhui Wang, Haibo Jiang, Yunlong Jiang
  • 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: 10566154
    Abstract: The invention relates to an electric rocker switch with an actuating element designed as a rocker. The rocker is thereby moveable back and forth between two positions, namely between an on position and an off position. The rocker is pivotably mounted on the housing for this purpose. The rocker interacts with a leaf spring, the upper end of the leaf spring is firmly clamped at the rocker via a longitudinal area and the lower end of the leaf spring is tiltably arranged on a contact element. The leaf spring has one stable arch shape in the on position and another stable arch shape in the off position with a curve oriented opposite the arch shape. The electric rocker switch according to the invention shows in an advantageous way symmetrical haptics for the on position and also for the off position, wherein the position of the rocker indicates the corresponding position.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: February 18, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventor: Martin Koepsell
  • Patent number: 10560008
    Abstract: A brushless direct current electric motor includes a first sub-motor and a second sub-motor. The first sub-motor and the second sub-motor share a common rotor, and each comprises an independent stator. The stators of each sub-motor comprises a plurality of teeth and a plurality of windings. The teeth of the first sub-motor and the teeth of the second sub-motor are interleavingly arranged in a circumferential direction or arranged side by side in an axial direction. The first sub-motor and the second sub-motor are configured to cooperatively work as a single electric motor to output a normal power. When one of the sub-motors breaks down, the other sub-motor can be operated independently to enhance reliability and safety of the brushless direct current electric motor.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: February 11, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Rui Feng Qin, Chuang Yu, Ning Sun, Kai Wu
  • Patent number: 10559935
    Abstract: A brush used to contact with a commutator, includes a brush body which includes two opposite axial end faces and a protruding portion projecting from the brush body toward the commutator. The protruding portion includes a first surface, a second surface and at least two teeth. The first surface and the second surface are respectively adjacent to the two axial end faces. Angles formed between the first surface and the second surface and corresponding adjacent axial end faces are obtuse. The teeth is located between the first surface and the second surface, and extends generally along a circumferential direction of the commutator. The ratio of a total width of the at least two teeth in an axial direction of the brush to an axial height of the brush body is in the range of 0.25-0.75. An electric motor including the brush is also provided.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 11, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Jingxin Shi, Sijun Zhao, Luyan Bi, Pingman Zhang, Lang Dai, Yunchang Yu, Guiqing Liao, Xionghui Liu, Zhiyu Chen, Cong Lv, He Chi
  • Patent number: 10553374
    Abstract: A switching device includes a switch and an actuating element. The actuating element for a switch includes a U-shaped actuating section. The actuating section includes two different arms with different lengths. The long arm is configured to transfer force to a button of the switch and a free end of the long arm is configured for holding the actuating element. The short arm is configured for the force input and is arranged aligned obliquely to the long arm.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: February 4, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Joachim Bahr, Jörg Gaßmann, Wassim Hayek, Bernhard Jaworek, Martin Tomala, Andreas Wiencek
  • Patent number: 10554156
    Abstract: A motor driving circuit, an application device, and a motor braking method are provided. The driving circuit includes an inverter, a braking unit, and a MCU. The inverter is configured to drive a motor. The braking unit includes a sampling circuit, a discharge circuit, and a switch group. The MCU is connected to the sampling circuit, the discharge circuit, and the switch group, and is configured to control the sampling circuit to detect a voltage across the inverter and obtain a detected value when receiving the emergency signal, compare the detected value to a preset voltage or a preset voltage range, and transmit a control signal to activate the discharge circuit when the detected value is greater than the preset voltage or exceeds the preset voltage range.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 4, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: You Qing Xiang, Shi Wen Wang, Wu Feng Qiu, Ying Chao Li, Yun Chen, Lian Zhong Zhang, Jun Zhang
  • Patent number: 10544787
    Abstract: A pump device includes a casing, an impeller, a base, and a motor. The casing includes a pump chamber, and an inlet and an outlet. The impeller is accommodated in the pump chamber. The motor is connected to the casing for driving the impeller to rotate and includes a rotor chamber for receiving a rotor. The base is disposed between the impeller and the motor and includes an accommodating groove having an inlet port in communication with the rotor chamber to allow fluid in the pump chamber to enter into the rotor chamber. In the pump device, precipitation has been performed to fluid in the accommodating groove before the fluid enters into the rotor chamber, thus the impurity particles can be prevented from entering into the rotor chamber, thereby prolonging the service life of the pump device.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: January 28, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Kok Ang Chong, Xiao Bo Xie, Shao Peng Mo
  • Patent number: 10539431
    Abstract: A resolver which includes a resolver rotor and a resolver stator. The resolver stator includes a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket. The winding bracket includes an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector. The connector includes a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals. The cover abuts against the lead wires to secure the lead wires to connector.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: January 21, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Xing Liu, Chengshun Du, Ning Sun, Ruifeng Qin, Yanbin Li
  • Patent number: 10536054
    Abstract: A mounting structure includes at least one first hole formed in a first component of the gear motor, at least one second hole formed in a second component of the gear motor, arranged coaxially with the first hole, and at least one expansion member extending into the first and second holes. The expansion member has an interference fit with one of the first and second holes, and has a transition fit with the other of the first and second holes. The present invention can effectively prevent falling off of the expansion member, and reduce the assembly difficulties of the gear motor as well as the degree of deformation of the expansion member during the assembly process.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: January 14, 2020
    Assignee: Johnson Electric International AG
    Inventors: Jing Ning Ta, Wei Xing Mao, Qiu Mei Li, Zhi Qiang Wu, Lan Gui Xing
  • Patent number: 10530226
    Abstract: A stator for a linear stepper motor includes four stator sheets and two stator windings. The four stator sheets are oriented towards each other, provided with bent polar arms, and have two inner stator sheets each defining a sheet recess and two outer stator sheets that are arranged in an offset manner. THE four stator sheets are joined into an integral coil body by a stator overmold. One of the stator windings is wound onto the coil body between one inner stator sheet and one outer stator sheet and connected with connector pins. The four stator sheets and the stator overmold including a stator flange and a pin socket are integrally formed such that radial envelope surfaces of the at least four stator sheets are free from the stator overmold. A stator recess inside the stator is arranged centrically in the stator overmold.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: January 7, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Gerd Howack, Daniel Gerhard Barthel, Andreas Kurtz
  • Patent number: 10527302
    Abstract: A ventilation assembly for a heat exchanger of a motor vehicle is provided, which includes a main body with a main opening, an electric fan mounted in the main opening, a connector and a retaining structure arranged on the main body. The electric fan includes an impeller and an associated electric driving motor. The connector is connected to the electric motor via an electric cable, and includes a plurality of terminals. The retaining structure includes a cavity having an open side for inserting the connector and a closed side for preventing an external access to the terminals of the connector, and a retaining member to retain the connector.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: January 7, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Giovanni Giangrande, Roberto Almondo, Andrea Carrer
  • Patent number: 10530286
    Abstract: An integrated electrical pump comprises a motor, an oil pump driven by the motor, and a pressure control system. The pressure control system controls a hydraulic pressure of the oil pump according to a motor speed of the motor, an oil temperature and a pressure command. An oil pressure control method of the integrated electrical pump is also provided.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: January 7, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Youqing Xiang, Xiaoyuan Hong, Huabo Li, Qingliang Lang, Xiaojun Yan
  • Patent number: 10527454
    Abstract: A magnetic sensor, a motor and an application apparatus are provided. The magnetic sensor includes a magnetic sensing element, a chopping switch, a first discharging branch, and a second discharge branch. The magnetic sensing element includes a first terminal, a second terminal, a third terminal, and a fourth terminal. The first discharging branch is coupled between the first terminal and the third terminal. The second discharging branch is coupled between the second terminal and the fourth terminal. Before the first terminal and the third terminal serve as power input terminals, the second terminal and the fourth terminal serve as output terminals of magnetic field detection signal, the second discharging branch is turned on; before the first terminal and the third terminal serve as the magnetic field detection signal output terminals, the second terminal and the fourth terminal serve as power input terminals, the first discharging branch is turned on.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: January 7, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Guang Jie Cai, Chun Fai Wong
  • 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: 10514089
    Abstract: An auxiliary oil pump system for a gearbox, comprising: an auxiliary battery; a controller electrically connected to the auxiliary battery; and an auxiliary oil pump driven by the controller using a self-adaptive process, wherein the self-adaptive process comprises: the controller receives current operational pressure signal and compared the current operational pressure signal to a pressure threshold; if the current operational pressure signal is bigger than the pressure threshold, the auxiliary oil pump keeps current rotational speed; if the current operational pressure signal is smaller than the pressure threshold, the auxiliary oil pump improves the rotational speed by a pre-determined speed.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: December 24, 2019
    Assignee: Johnson Electric International AG
    Inventors: Rui Feng Qin, Xiao Ming Wang, Ping Hua Tang, Hao Chen, Lei Jiang, Zhi Yang Zhong, Nian He Qu
  • Patent number: 10508931
    Abstract: The invention relates to a motor and a resolver thereof. The resolver includes a resolver stator (70), a resolver rotor (80). The resolver includes (70) a plurality of resolver stator teeth (73) and resolver stator windings (75) wound around the resolver stator teeth (73). The resolver rotor (75) includes a resolver rotor core (81) received in a space surrounded by the resolver stator teeth (73) and capable of rotating around a shaft axis. The resolver stator windings (75) includes first output windings wound around each of the resolver stator teeth (73) by a first number of turns, second output windings wound around each of the resolver stator teeth by a second number of turns, and exciting windings wound around each resolver stator teeth by a third number of turns.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 17, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Rui Feng Qin, Cheng Shun Du, Ning Sun, Xing Liu
  • Patent number: 10502323
    Abstract: A shut-off valve for integration into an intelligent gas meter for residential or industrial gas supply, has an inlet, an outlet and a valve seat having a lip seal. A shut-off body is longitudinally displaceable with respect to the valve by a motor driven transmission, using a nut-threaded-spindle drive, to engage with or disengage from, the seal to open or close the valve. The transmission of the valve remains largely unbiased in the closed state while maintaining the gas-tightness of the valve.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 10, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Sten Waehrisch, Sten Ritschel, Marcus Herrmann
  • Patent number: 10505434
    Abstract: A motor and an application apparatus are provided. The motor includes a stator having a stator core and a stator winding wound on the stator core, a rotor, a magnetic sensor configured to detect a magnetic field polarity of the rotor and output a corresponding signal, and a motor driving circuit configured to drive the rotor to rotate with respect to the stator based on the signal output from the magnetic sensor. At a rest position of the rotor, the magnetic sensor is arranged with an advance angle with respect to a polar axis of the rotor, to make the motor have a high starting torque.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: December 10, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chiping Sun, Fei Xin, Shinghin Yeung, Xiuwen Yang, Shujuan Huang, Yunlong Jiang