Patents Assigned to Johnson Electrics S.A.
  • Actuator for an electric parking brake system
    Patent number: 9616862
    Abstract: An actuator for an electric parking brake system has an outer housing. A planetary gear train and an electric motor are disposed in the outer housing. At least one gear connects the motor to the planetary gear train. The planetary gear train comprises a multi-stage planetary gear mechanism. A gear housing accommodates the planetary gear mechanism. The planetary gear train further comprises a centering pin extending through the gear mechanism, such that the planetary gear mechanism rotates about the centering pin. Each stage has a sun gear, a ring gear, a plurality of planet gears meshed with the sun gear and ring gear, and a planet carrier rotatably supporting the planet gears.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: April 11, 2017
    Assignee: Johnson Electric S.A.
    Inventors: Fa Yun Qi, Li Nan Li, Jin An Nie, Rui Feng Qin
  • Control circuit and motor device
    Patent number: 9614431
    Abstract: A control circuit includes: an input terminal for receiving an input AC voltage; a voltage decreasing unit for decreasing the input AC voltage; an A-D converter for converting the decreasing AC voltage to a DC voltage; a driving unit for receiving the DC voltage and to driving a motor, a detecting unit for detecting the DC voltage; and a current shunt unit configured to be conductive to lower the DC voltage at the output terminal of the A-D converter to a voltage which is less than a threshold voltage when the detecting signal indicates that the detected DC voltage exceeds the threshold value. A motor device includes the control circuit and a motor.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 4, 2017
    Assignee: Johnson Electric S.A.
    Inventors: En Hui Wang, Fei Xin, Chi Ping Sun, Ming Li Zhang
  • Electric switch with an actuator
    Patent number: 9613765
    Abstract: An electric switch has a housing with an upper surface through which a actuating plunger extends at a position close to a side surface. The actuating plunger is arranged to operate a switching element disposed inside the housing. An actuating lever is fixed to the side surface adjacent the plunger such that the actuating lever extends over and beyond the upper surface of the housing. A stop for the actuating plunger is arranged inside the housing. With this switch the actuating travel is extended solely in relation to the switch. Furthermore a long over-travel exists following switching, wherein any forces which might occur through improper use in relation to the switch do not cause any damaging effects to the switching element.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: April 4, 2017
    Assignee: Johnson Electric S.A.
    Inventor: Martin Koepsell
  • Alternating current switch contactor
    Patent number: 9613767
    Abstract: An electrical contactor is provided comprising a first terminal having a fixed member with at least one fixed electrical contact; a second terminal; at least one electrically-conductive movable arm in electrical communication with the second terminal and having a movable electrical contact thereon; and an AC dual-coil actuator having a first drive coil drivable to open and close the movable and fixed electrical contacts, and a second non-drive coil feedback connected to induce a reverse flux to temper and stabilize a net flux, thereby enabling control of a delay time of the opening and closing electrical contacts so as to be at or adjacent to a zero-crossing of an associated AC load current.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: April 4, 2017
    Assignee: Johnson Electric S.A.
    Inventor: Richard Anthony Connell
  • Actuator
    Patent number: 9614419
    Abstract: An actuator includes a DC motor having two terminals to be fed with DC power, an output gear driven by the DC motor, a potentiometer having an arc resistive element with two ends and an electrically conductive wiper that moves along the resistive element, and two diodes. The wiper rotates with the output gear to provide a signal indicative of the rotational position of the output gear. The anodes of the two diodes are both electrically connected to one end of the resistive element, and the cathodes of the two diodes are electrically connected to the two terminals of the motor respectively.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: April 4, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Tanh Minh Bui
  • Electrical contactor
    Patent number: 9607780
    Abstract: An electrical contactor for switching a load current having an AC waveform, has a fixed electrical contact, a movable electrical contact, an actuator arrangement having a drive coil drivable for opening and closing the movable and fixed electrical contacts, and a power supply having a controller for outputting truncated-waveform drive pulses to the electrical actuator arrangement, so as to prevent contact separation prior to peak load current.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: March 28, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Richard Anthony Connell
  • Retainer for a rolling bearing
    Patent number: 9599165
    Abstract: A fastening device for a rolling bearing includes a bearing mounting portion disposed at an end of a motor housing, a rolling bearing received in the mounting portion, and a retainer ring disposed between an inner peripheral surface of the mounting portion and a peripheral surface of an outer ring of the rolling bearing. The rolling bearing is fastened to the motor housing by the retainer ring. The retainer ring is resiliently deformable in the radial direction of the rolling bearing.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: March 21, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Ming Cen Lu, James Ching Sik Lau, Xi Ping Yang, Chi Keung Law
  • Electrical contactor with movable arm
    Patent number: 9583283
    Abstract: An electrical contactor has a first terminal having a fixed member with at least one fixed electrical contact, a second terminal, and at least one movable electrical contact in electrical communication with the second terminal. A dual-coil actuator is also provided and has a first drive coil drivable to open and close the movable and fixed electrical contacts, and a second non-drive coil feedback connected to induce a reverse flux to temper and stabilize a net flux. Control of a delay time of the opening and closing electrical contacts is thus possible, so as to be at or adjacent to a subsequent or next zero-crossing of an associated AC load current waveform.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 28, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Richard Anthony Connell
  • Transverse flux permanent magnet rotatory device
    Patent number: 9577502
    Abstract: A transverse flux motor (10) includes a housing (20), a stator (50), and a rotor (30) external to the stator (50) and installed onto the housing. The stator (50) includes a stator sub-assembly including at least one pair of stator core elements (52), each having multiple stator pole teeth (56) circumferentially offset from pole teeth of the other stator core element in the pair. The rotor (30) includes a rotor body (32) made of a single piece part or multiple rotor body laminas (36). The rotor body (32) includes multiple magnetic flux retention features (40) for positioning first magnets (34). Two adjacent magnetic flux retention features (48) define a second magnet retention feature (47) for positioning a second magnet (45) that form a substantially U-shape together with two neighboring first magnets with the same magnetic poles facing each other.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: February 21, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Yue Li, Jinyun Gan, Chuiyou Zhou, Yanfei Liao, Xiaomei Yuan
  • Electronic device with tamper resistant enclosure
    Patent number: 9576451
    Abstract: A tampering resistant device has housing, a circuit board fitted with electronic components, and a key pad for command input. A security wrap is disposed between the circuit board and the key pad. The security wrap has a substrate and a security screen formed thereon and connected to a first alarm. The security screen has a conductive trace extending over the substrate between a pair of screen terminals that are electrically connected to respective alarm terminals. An alarm switch is located between the substrate and the circuit board and connected to a second alarm. The alarm switch is held closed by a spigot pressing on the alarm switch through the substrate. The spigot extends from the housing and releases the alarm switch when the housing is opened.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: February 21, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Martin Wallace Edmonds
  • Security wrap with breakable conductors
    Patent number: 9576450
    Abstract: A security wrap (20) for protecting an electronic component includes a substrate (22) having a first side and a second side opposite to each other. A security screen (26) is disposed over the first side of the substrate (22) and includes a pair of screen terminals (48) and a frangible and electrically conductive path (46) between the pair of screen terminals (48). A layer of adhesive (30) is over the first side of the substrate (22) and bonds the first side of the substrate (22) to the electronic component with the security screen (26) sandwiched there between.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 21, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Vincent Daniel Jean Salle, Dominic John Ward, Martin Wallace Edmonds, Libing Zhang
  • Electrical contactor
    Patent number: 9548173
    Abstract: An electrical contactor has first and second terminals; a movable arm connected to the second terminal; and an actuator. The actuator has a magnet, first and second coils having a common connection and located either side of the magnet, a magnetic rocking armature pivotably attached between the coils and an actuation element connected to the first end of the rocking armature for actuating the movable arm. Driving the first coil causes a demagnetization of the first coil and a corresponding increase in magnetic flux in the second coil, latching the armature to the second coil and moving the movable arm in a first direction. Driving the second coil causes a demagnetization of the second coil and a corresponding increase in magnetic flux in the first coil, latching the rocking armature to the first coil and moving the movable arm in a second direction.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: January 17, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Richard Anthony Connell
  • Electric motor
    Patent number: 9543798
    Abstract: A rotor for an electric motor has an iron core and a winding wound about teeth of the rotor core. Slots are formed between the teeth to accommodate coils of the winding. The winding includes several layers of windings distributed in the radial direction of the rotor. Each winding layer has a plurality of coils with the coils of each winding layer being wound on the teeth in the circumferential direction of the rotor. The overall center of gravity of the winding layers is substantially positioned at the geometric center of the rotor. Thus the center of gravity of the entire winding is located substantially at the geometric center of the rotor, thereby preventing noise caused by unstable rotation due to the deviation between the center of gravity of the winding and the geometric center of the rotor.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 10, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: James Ching-Sik Lau, Chun Kit Cheung, Duncan Yiu Lung Wong, Xiao Jun Yang
  • Voltage controller for an electric cooling fan
    Patent number: 9538678
    Abstract: A voltage controller has an electrically insulating supporting structure provided with a plurality of electrical connecting terminals. At least one of the terminals has a flexible blade of elongate shape which protrudes inside the structure where a distal end portion of the blade is connected to a circuit housed therein. The supporting structure has a protective formation with at least one strip which has a shape corresponding to that of the blade and which extends in superimposition on this blade.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: January 3, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Marco Bussa
  • Motor with low electromagetic interference
    Patent number: 9537377
    Abstract: A motor assembly for a window lift mechanism has a motor and a gearbox. The motor includes a stator having a metal housing, and a rotor with a commutator, rotatably received in the housing. An end cap assembly is connected to the housing. The end cap assembly includes a plurality of brushes making sliding contact with the commutator, a plurality of connecting pieces for connecting an external power source, inductors connected between the brushes and the connecting pieces, and shielding layers cladding the inductors and electrically connected to the housing.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: January 3, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Qing Bin Luo, Zhao Sen Meng, Wen Ming Wu, Wing Cheung Lam, Qiang Xu, Da Xuan Zhan
  • Brushed rotatory device with collecting structure
    Patent number: 9531229
    Abstract: A brushed rotatory device (10) includes a stator, a rotor (14), an impeller (70), and a chamber (48) accommodating the commutator (16) and brushes (52) to contain debris from consumed brushes. The impeller causes air flow to dissipate heat generated by the rotatory device and may further carry the consumed brush debris away. The rotatory device includes flow channel(s) (72) which communicates with the impeller exhaust and accommodates absorbent or filtering materials (88) to trap the debris in the air flow. The commutation area may be double contained by using flange(s) (202) or wall(s) (42) to trap or confine a greater part of the debris in a localized region or to reduce noise from the rotatory device operations.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: December 27, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Awade Badafem, Min Li
  • Contact smart card
    Patent number: 9524459
    Abstract: A contact smart card has a smart card contact pad and an IC chip. The smart card contact pad includes a circuit substrate, a card-reader contact element on a first side of the circuit substrate, and a connection element on a second side of the circuit substrate. The card-reader contact element has a noble metal electrically conductive surface, and the connection element has a chip terminal connection surface which is not a noble metal. The IC chip is preferably flip-chip mounted at the second side of the circuit substrate and electrically connected to the chip terminal connection surface. Furthermore, the chip terminal connection surface is preferably an organometallic electrically conductive corrosion protection layer.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 20, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Vincent Daniel Jean Salle, Teck De Loi, Arthur Demaso
  • Impeller and method for driving fluids using the same
    Patent number: 9512726
    Abstract: Disclosed are mechanisms for an impeller (10, 20, 40) and method of reducing noise levels while driving fluids with impellers. Exemplary implementations include a hub (21, 41) and multiple blades (22) separably attached to or inseparably formed on the hub. The hub may be used to effectively reduce noise levels during operations of the impeller by having a first cylindrical feature (261), a first number of first ribs (27, 47, 706), and a second number of second ribs (281, 48, 708), while maintaining substantially similar mechanical properties or operational characteristics. The hub may further optionally include a second substantially cylindrical feature (704) that is separably attached to or is inseparably formed on the hub to further enhance one or more properties or characteristics of the hub while serving to reduce the noise level of the impeller.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: December 6, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Guodong Ren, Anbang Chen, Di Wang, Rui Feng Qin
  • Vehicle door lock actuator
    Patent number: 9506539
    Abstract: An actuator for a vehicle door lock mechanism has a motor, a first gear, a second gear and a third gear. The motor has a shaft to which the first gear is connected. The motor rotates the first gear, which in turn drives the second gear and the third gear. A non-tooth part is formed on the second gear. A projection is formed on the third gear. Stops are arranged for stopping rotation of the third gear. When the second gear rotates to a position where the non-tooth part corresponds to the third gear, the projection is spaced from one stop by an angle. When the second gear rotates further, the gears re-mesh and the third gear rotates till the projection contacts the stop.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: November 29, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Jing Ning Ta, Zhong Ping Wu, Bin Yu, Qiu Mei Li
  • Electrical brush
    Patent number: D782979
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 4, 2017
    Assignee: Johnson Electric S.A.
    Inventors: Fa Yun Qi, Shu Dan Zhao, Cheng Shun Du, Rui Feng Qin