Patents Assigned to JOHNSON ELECTRIC INTERNATIONAL AG
  • 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: 10454397
    Abstract: A magnetic sensor integrated circuit, a motor and an application apparatus are provided. The magnetic sensor integrated circuit includes an input port, a magnetic sensor, and a signal processing unit. The input port is electrically coupled to an external power source. The magnetic sensor senses a polarity of an external magnetic field and outputting a detection signal. The signal processing unit includes a switched capacitor filter unit to sample and filter the detection signal; the signal processing unit eliminating an offset of the detection signal.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: October 22, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Guang Jie Cai, Chun Fai Wong
  • 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: 10451023
    Abstract: An engine, an engine starter and its housing assembly are provided. The housing assembly includes a gear mounting portion for mounting a driving gear and a switch mounting portion for mounting a solenoid switch. The switch mounting portion comprises a connecting portion and a cover body. The connecting portion is connected with the gear mounting portion and comprises a through structure for mounting the solenoid switch, the cover body covers a top end of the through structure. A wall of the connecting portion corresponding to the gear mounting portion defines an opening for mounting a shifting fork, which is in communication with the through structure.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: October 22, 2019
    Assignee: Johnson Electric International AG
    Inventors: Xiao Bing Zuo, Jun Jie Chu
  • 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: 10447128
    Abstract: A stator and a multiphase brushless electric motor utilizing the stator are provided. The stator which includes a stator core having a ring portion and a plurality of stator poles; a plurality of stator coils wound on the stator poles and having coil terminals; and a wiring frame fixed to the stator core, and comprising a plurality of conducting electrically insulated from each other. The conductor elements are electrically coupled to corresponding coils terminals to form multiphase windings. At least three coil terminals of the stator coils electrically coupled to respective conducting members are directly electrically coupled to a multi-phase power supply. The above stator can provide a simple, economic and reliable connection between the coil terminals and the multiphase power supply.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: October 15, 2019
    Assignee: Johnson Electric International AG
    Inventors: Gionatan Nuzzo, Fabio Olmo
  • Patent number: 10442122
    Abstract: A bio-sensor circuit for detecting characteristics of a substance placed thereupon, the bio-sensor circuit has: a printed circuit having at least one electrically conductive contact sensor on a surface of the printed circuit, the electrically conductive contact sensor including a biochemical agent; and an electrically insulative coating affixed to the surface of the printed circuit, the electrically insulative coating having a well associated with the electrically conductive contact sensor, thereby leaving the electrically conductive contact sensor exposed through the electrically insulative coating, the electrically insulative coating being a resinous compound formed by injection molding. An electrochemical change resulting from the interaction of the substance to be characterized and the biochemical agent creates a detectable electrical potential at the electrically conductive contact sensor. A system and method of creating such a circuit via injection molding is also provided.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: October 15, 2019
    Assignee: Johnson Electric International AG
    Inventor: Steven Eric Dean
  • Patent number: 10443688
    Abstract: A driving device includes a motor and a gearbox. The gearbox includes a first sun gear, first planetary gears surrounding and engaged with the first sun gear, and a first internal gear ring surrounding and engaged with the first planetary gears. The first sun gear is coaxially fixed to a rotary shaft of the motor. Meshing planes of the first sun gear and the first planetary gears are slanted with respect to the rotary shaft. Each of the first planetary gears is subjected to an externally-exerted first force and exerts a transverse component of force toward the rotary shaft on the first sun gear. The motor structure of the driving device is simplified, which makes the driving device have a more compact structure, lighter weight and lower cost.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 15, 2019
    Assignee: Johnson Electric International AG
    Inventors: James Ching Sik Lau, Jing Ning Ta, Qiu Mei Li, Bin Yu
  • Patent number: 10439529
    Abstract: A sensor integrated circuit includes a rectifier, a power supply module, an output control circuit and a detecting circuit. The rectifier is configured to convert an external power supply into a first direct current power supply. The power supply module includes a voltage regulator configured to generate a second direct current power supply different from the first direct current power supply. The detecting circuit is powered by the second direct current power supply and configured to detect an inputted signal and correspondingly generate a control signal. The output control circuit is configured to control, in response to at least the control signal, the sensor integrated circuit to operate in at least one of a first state in which a current flows out from an output port and a second state in which a current flows in from the output port.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: October 8, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chi Ping Sun, Fei Xin, Ken Wong, Shing Hin Yeung, Hui Min Guo, Shu Zuo Lou, Xiao Ming Chen, Guang Jie Cai, Chun Fai Wong, 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: 10431363
    Abstract: A plunger includes an elongate plunger body which is at least in part cylindrical and a plunger head at one end of the plunger body. The plunger body has a magnet-interface body portion which has a non-cylindrical cross-section perpendicular to a longitudinal axis of the plunger body. A magnetic latching solenoid actuator using such a plunger is also provided, as is a method of improving the performance of a magnetic latching solenoid actuator.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: October 1, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventor: Richard Anthony Connell
  • 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: 10424986
    Abstract: An actuator for a vehicle air-conditioning unit, has a housing, an output driven by a gear train, a motor driving the output via the gear train, a PCB connected to the motor for supplying power to the motor; and lead wires connected to the PCB via a direct connection connector to supply power to the PCB. Terminals of the connector are crimped to the lead wires and make direct mechanical contact with contact pads formed on the PCB.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 24, 2019
    Assignee: Johnson Electric International AG
    Inventor: Yvan Bourqui
  • Patent number: 10424997
    Abstract: A motor and a rotary assembly of the motor are provided. The motor includes a rotary assembly and a stationary assembly supporting the rotary assembly. The rotary assembly includes a rotary shaft, a retainer rotating along with the rotary shaft, and a rotor magnet retained by the retainer. A portion of the rotor magnet engages with a portion of the retainer via interference fit, and a gap is defined between another portion of the rotor magnet and another portion of the retainer.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: September 24, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Wan Mei He, Jing Chen, Jun Jie Chu
  • Patent number: 10424980
    Abstract: A motor stator includes a stator core, a winding wound around the stator core, and a circuit board connected with the winding. The circuit board forms a through hole. The through hole has an opening formed at an outer edge of the circuit board. A wire terminal of the winding slides into the through hole via the opening, and a distal end of the wire terminal is bent and soldered to a surface of the circuit board after passing through the through hole.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: September 24, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Hui Fang Yu, Moola Mallikarjuna Reddy
  • Patent number: 10424998
    Abstract: A rotor includes a magnet yoke and a number of permanent magnets. The magnet yoke defines a number of accommodating slots therein, and each of the permanent magnets is received in one of the accommodating slots. An elastic member protrudes from the magnet yoke towards each of the accommodating slots, the permanent magnets are inserted in the corresponding accommodating slots, and the elastic members are bent and abut against the permanent magnets. A motor and a power tool include the rotor are also disclosed.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: September 24, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Ronny Keil, Kwong Yip Poon, Bhoopal Ponnuvelu
  • Patent number: 10415566
    Abstract: A gear pump has a pump body, a pump cylinder connected with the pump body, a driving gear and a driven gear meshed with each other and disposed in the pump cylinder, and a motor driving the driving gear through a driving shaft. The pump cylinder is located between the pump body and the motor. The driving gear is mounted to or integrally formed with the driving shaft. A first bearing and a second bearing are disposed on respectively sides of the driving gear, one end of driving shaft is received in the first bearing, and the other end of the driving shaft extends through the second bearing and into the motor and forms a shaft of the motor.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 17, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Mohanlal Ramadoss, Wu Liu, Chi Hang Ngai
  • Patent number: 10415590
    Abstract: An electric coolant pump includes an outer housing, a motor, an impeller, and an electrical control unit. The outer housing includes a first housing portion, a second housing portion, and a partition plate integrally formed. The partition plate is disposed between the first housing portion and the second housing portion. The motor is received in the first housing portion. The motor includes a sealing sleeve, a stator disposed on an inner wall surface of the outer housing, and a rotor rotatably received in the sealing sleeve. The impeller is driven by the rotor of the motor to drive a coolant to flow. The electrical control unit is received in the second housing portion and electrically connected to the motor. The electrical control unit and the impeller are respectively located at two opposite ends of the motor.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: September 17, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Guan Yin Liang, Hong Liang Zhang, An Bang Chen, Yan Ping Ren, Rui Feng Qin
  • Patent number: 10418877
    Abstract: An endcap assembly for an electric motor and a stator having same are provided. The endcap assembly includes an endcap, a first wire, and two terminals corresponding to the first wire. The two terminals are fixed to the endcap and configured to connect with corresponding windings of the electric motor. The endcap defines a first accommodating groove extending from one terminal to the other terminal. The first wire is received in the first accommodating groove, and two ends of the first wire are electrically connected to the two terminals, respectively.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 17, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Kwong Yip Poon, Jie Chai, San Yuan Xiao, Kun Zhou Lu, Tao Zhang
  • Patent number: 10418883
    Abstract: A cover assembly and a brushed motor are provided. The cover assembly includes a mounting portion and a flow guide portion. The mounting portion defines a first opening through the mounting portion along an axial direction of the motor. The flow guide portion includes a top wall disposed at one end thereof away from the mounting portion along the motor axial direction. The fluid guide portion defines a second opening extending to an inner wall surface of the top wall in the motor axial direction. The first opening and the second opening are in flow communication with each other. The flow guide portion further defines a winding flow passage. The flow passage has an inner inlet in flow communication with the second opening and an outer outlet in flow communication with an outside environment. The present invention facilitates absorption of the motor noise and hence reduction of the output noise.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: September 17, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Min Li, Jin Jin Wu, Kok Ang Chong, Cheng Zhuang Zhu
  • Patent number: 10418919
    Abstract: An electric tool and a motor drive system are provided. The motor drive system includes a trigger switch, an electronic switch, and a switch control circuit connected between the trigger switch and the electronic switch. The trigger switch is connected in series to a power supply. The electronic switch is configured to control a motor to be powered on or powered off. The switch control circuit is configured to control the electronic switch based on a state of the trigger switch, wherein the electronic switch is delayed to be turned off after the trigger switch is turned off to control the motor to be powered off later than a time that the trigger switch is turned off.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 17, 2019
    Assignee: Johnson Electric International AG
    Inventors: Yuk Tung Lo, Hai Bo Ma, Song Chen, Siu Chung Yip, Yong Sheng Gao, Jian Xun Zou