Patents Examined by Bryan R Perez
  • Input voltage dependent control for active clamp flyback
    Patent number: 11606038
    Abstract: A power converter and control circuit are provided. The control circuit has a power controller for turning on the power switch to maintain a desired output voltage and mode selection switch provides a mode selection signal. Depending on the magnitude of an input voltage of the power converter, in which the mode selection circuit compares the input voltage of the power converter with a reference voltage, a modulation controller is configured to turn on a modulation switch to activate the capacitor according to the mode selection signal.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: March 14, 2023
    Assignee: Diodes Incorporated
    Inventors: Wei Chuan Su, Feng-Jung Huang, Yuan-Hung Lo, Hao-Ming Chen
  • Circuit breaker to switch between two energy sources
    Patent number: 11605518
    Abstract: A device and method for switching between a first power source and a second power source. The device includes a first terminal, a second terminal, and a third terminal that connect to the first power source, a load, and the second power source respectively. A first switch and a breaker circuitry connect the first terminal to the second terminal. A second switch interrupts an electrical connection between the third terminal and the second terminal. A lever operably coupled to the first switch and the second switch, the lever can be actuated by the first switch to flip the second switch between the open state and the closed state.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: March 14, 2023
    Inventor: Frank J Sontag
  • Electrical circuit breaker system with temperature-dependent total current monitoring
    Patent number: 11605942
    Abstract: An electrical circuit breaker system including an input terminal connecting an electrical current source and a plurality of output terminals for connecting electrical loads. Each output terminal includes an electrical switch and a current measuring unit. The circuit breaker system includes a current acquiring unit for acquiring current magnitudes measured at the output terminals and for determining a total current magnitude. A temperature acquiring unit acquires a temperature, and a computing unit is configured to determine a total current limit as a function of the acquired temperature. Further, a control unit is configured to select one of the plurality of output terminals based on a ranking of the output terminals and to interrupt the current supply at the selected output terminal by means of the corresponding electrical switch when the total current magnitude exceeds the determined total current limit.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: March 14, 2023
    Assignee: PHOENIX CONTACT GMBH & CO. KG
    Inventors: Alexander Fomenko, Vjaceslav Magazinik, Gerhard Wölk
  • Switch device with contact cover
    Patent number: 11600461
    Abstract: The present invention refers to a switch device with at least one contact point, the contact point having a first contact and a second contact, the first and second contacts being spaced apart from one another in an open position and electrically contacting one another in a closed position, the contact point being assigned an arc blowout device for generating a magnetic blowing field, the blowout field being such that an arc produced when the contact point is opened is blown away from the contact point. In accordance with the invention, at least one of the two contacts is provided with a non-conductive cover on a non-contact-facing side which faces away from the other contact, which cover prevents a base point of the arc from crossing the non-contact-facing side.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 7, 2023
    Assignee: Schaltbau GmbH
    Inventors: Johannes Schmid, Daniel Hammerl, Korbinian Kreuzpointner
  • Spacing-assured electric field shield for gas discharge tube of motor control
    Patent number: 11596057
    Abstract: A spacing-assured gas discharge tube assembly is installed on a printed circuit board, which may be part of a motor controller. The discharge tube assembly includes a tube body and an electrostatic spacing shield disposed at least partially around the tube body. The shield is configured to prevent close physical proximity of adjacent structures having electrostatic fields that may alter the breakdown voltage of the tube body.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: February 28, 2023
    Assignee: Nidec Motor Corporation
    Inventor: James L. Skinner
  • Motor-driven compressor
    Patent number: 11588371
    Abstract: Connectors are each integrated with a holder in a state in which bus bars are projected. A first projection and a second projection of the holder are respectively inserted in a first insertion hole and a second insertion hole in a circuit substrate. This determines positions of the holder and the circuit substrate relative to each other. The holder has coil lead wire insertion holes, capacitor lead wire insertion holes, and element lead wire insertion holes. These insertion holes extend in the same direction as the direction in which the bus bars project from the holder.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 21, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takeshi Okochi, Yusuke Kinoshita, Junya Yano, Shumpei Yamakage
  • Environmentally protected sealed electric motor
    Patent number: 11581776
    Abstract: A structure for sealing an electric motor so that it is not affected by the humidity from the environment it is placed in, while at the same time the heat generated within the structure is removed into the environment preventing long term motor damage.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: February 14, 2023
    Inventors: Terry Wittmer, Martin Kuetzing
  • Active filter system and air conditioning device
    Patent number: 11577186
    Abstract: A plurality of active filter devices (41, 42, 43) that each have an output connected to a harmonic-generating load device (2) and are capable of generating a compensating current for performing at least one of reduction of a harmonic current of the harmonic-generating load device (2) and improvement of the power factor of the fundamental wave are provided. The plurality of active filter devices (41, 42, 43) provide two or more types of capacities, and the number and combination of operating active filter devices among the active filter devices (41, 42, 43) change in accordance with the magnitude of the compensating current.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 14, 2023
    Assignee: Daikin Industries, Ltd.
    Inventors: Masaki Kono, Reiji Kawashima, Takayuki Fujita
  • Controlled switching of a circuit breaker
    Patent number: 11581724
    Abstract: A method for controlled switching of a circuit breaker is described. The method includes initiating operation of the circuit breaker at an initiation time derivable from an initiation time function by calculating a value of the initiation time function with respect to a command instant. The initiation time function is a sum of the command instant and a command delay time. The initiation time function depends on a first parameter and a second parameter. At least one of: the partial derivative of the initiation time function with respect to the first parameter is dependent on the second parameter or the partial derivative of the initiation time function with respect to the second parameter is dependent on the first parameter. Further, a system for controlled switching according to the method and a circuit breaker including the system are described.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: February 14, 2023
    Assignee: HITACHI ENERGY SWITZERLAND AG
    Inventors: Michael Stanek, Urmil Parikh
  • Input voltage adaptive jitter power converter
    Patent number: 11575316
    Abstract: A power converter includes a power switch controlling current flow in the power converter and a variable capacitance coupled in parallel to the power switch. The variable capacitance is configured to add a frequency jitter to the power converter.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 7, 2023
    Assignee: Diodes Incorporated
    Inventors: Wei Chuan Su, Feng-Jung Huang, Yuan-Hung Lo
  • Rotor shaft for an electric machine and electric machine
    Patent number: 11569710
    Abstract: A rotor shaft for an electric machine includes a rotor shaft main body and a rotor shaft core which is arranged therein and which is connected to the rotor shaft main body. The rotor shaft comprises a substantially axially running cooling cavity configured to conduct a cooling fluid, and the rotor shaft core is composed of a different material than the rotor shaft main body.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 31, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Endre Barti, Julian Blum, Markus Lang, Daniel Loos, Holger Ulbrich
  • Protection relay device and power conversion system
    Patent number: 11557894
    Abstract: A protection relay device includes a housing and a fuse unit. The fuse unit includes a connection conductor, an input conductor connected to the connection conductor and receiving an external power, a fuse connected to the connection conductor, and an external device connection conductor connected to the fuse on a side opposite to the input conductor, and to which an external device is connected. A short-circuit induction conductor is provided on at least one of the input conductor on a side opposite to the fuse and the flapper portion, the short-circuit induction conductor protruding toward the other of the input conductor and the flapper portion.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: January 17, 2023
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Keisuke Inamasa, Kenji Uetani, Mitsuru Hano
  • Method for restoring power in an underground radial loop network
    Patent number: 11552466
    Abstract: A method for isolating a fault in an underground power distribution network. The network includes a power line, a plurality of transformers electrically coupled to and positioned along the power line, a first recloser connected to one end of the power line and a second recloser connected to an opposite end of the power line, where each transformer includes an upstream switching device and a downstream switching device, and where power is provided to both ends of the power line through the first and second reclosers and one of the switching devices is a normally open switching device. The method includes detecting overcurrent by some of the switching devices, detecting loss of voltage by some of the switching devices and sending clear to close messages to some of the switching devices to open and close certain ones of the switching devices to isolate the fault.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: January 10, 2023
    Assignee: S&C Electric Company
    Inventors: Michael Quinlan, Boris Marendic, Alejandro Montenegro, Daniel Desmond, John French
  • Motor cooling system utilizing axial coolant channels
    Patent number: 11535097
    Abstract: An electric motor cooling system is provided that utilizes stator-integrated axial coolant channels and a coolant manifold centrally located within the stator to efficiently remove motor assembly heat. In order to increase the velocity of the coolant exiting the axial coolant channels, thereby improving end winding cooling uniformity, end laminations are integrated into the stator which restrict the flow of coolant from the axial coolant channels.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: December 27, 2022
    Assignee: Atieva, Inc.
    Inventors: Emad Dlala, Jeremy Mayer, Barnaby James Gerard Lewis, Mohammed Mahmoudi
  • Power tool
    Patent number: 11529729
    Abstract: A power tool includes a body housing including a first grip, inlet facing a front surface of the first grip, first outlet, and second outlet; a brushless motor held on the body housing and including a rotational shaft; an output unit supported on the body housing in a reciprocable manner; a power transmission mechanism between the brushless motor and the output unit in the body housing to transmit rotational motion of the rotational shaft to the output unit; a controller held on the body housing to control the brushless motor; and a fan held on the body housing and mounted on the rotational shaft. The body housing allows air drawn through the inlet and having cooled the brushless motor to be divided into first and second outlet blows respectively cooling the power transmission mechanism and discharged through the first outlet, and cooling the controller and discharged through the second outlet.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 20, 2022
    Assignee: MAKITA CORPORATION
    Inventor: Yasushi Ogura
  • Isolated switching power converter with data communication between primary and secondary sides
    Patent number: 11527961
    Abstract: An isolated switching power converter having a primary-side and secondary-side in signal communication with an input and an output is disclosed. The isolated switching power converter comprises a transformer, primary-side switch, secondary-side switch, primary-side controller, and secondary-side controller. The transformer includes a primary-winding and a secondary-winding in signal communication with the input and output. The primary-side switch is in signal communication with the primary-winding and the secondary-side switch is in signal communication with the secondary-winding. The primary-side controller is on the primary-side and the secondary-side controller is on the secondary-side.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: December 13, 2022
    Assignee: Dialog Semiconductor Inc.
    Inventors: Guang Feng, Pengju Kong, Jianming Yao
  • Linear vibration actuator
    Patent number: 11522430
    Abstract: A linear vibration actuator includes: a mover having a plurality of magnets linearly arrayed in the vibration direction; a guide portion holding the mover to be allowed to linearly move in the vibration direction; a plurality of planar coils wound in a flat plate shape on a flat surface facing the mover; a pair of first biasing magnets respectively arranged at both ends of the mover in the vibration direction; and a pair of second biasing magnets that are respectively arranged facing the pair of first biasing magnets, and respectively have the same polarities as those of the pair of first biasing magnets to bias the mover in the vibration direction.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: December 6, 2022
    Assignee: Adamant Namiki Precision Jewel Co., Ltd.
    Inventors: Kazuya Nakamura, Motoichi Nakamura, Chihiro Okamoto, Takeshi Kogawa
  • Rotor with surface mounted magnets
    Patent number: 11515745
    Abstract: A rotor for a permanent magnet motor, including a rotor body having a cylindrical surface having a circumference. A plurality of magnets are disposed on the cylindrical surface at spaced intervals at the circumference, each of the magnets having a base disposed on the cylindrical surface and a top oriented radially away from the base, a sloping front side and a sloping rear side defining with the base and top an isosceles trapezoid shape in a cross sectional plane normal to an axis of rotation of the rotor, the isosceles trapezoid shape being broader at the base. A plurality of magnet retainers, each magnet retainer disposed between a neighboring pair of the plurality of magnets, include angled faces that engage respective front and rear sides of adjacent pairs of the plurality of magnets.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: November 29, 2022
    Assignee: ABB Schweiz AG
    Inventors: Ghanshyam Shrestha, Colin Tschida, Paul Humphries
  • Protection circuit and air conditioner
    Patent number: 11512860
    Abstract: Embodiments of the present disclosure provide a protection circuit and an air conditioner, which are applied to the field of air conditioner technologies and used to protect an indoor unit. The protection circuit provided by the embodiments of the present disclosure includes: a positive temperature coefficient thermistor; a signal input terminal; and a communication module; wherein a first end of the positive temperature coefficient thermistor is connected to the signal input terminal, and a second end of the positive temperature coefficient thermistor is connected to the communication module.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: November 29, 2022
    Assignee: QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
    Inventors: Shaojiang Cheng, Jun Wang, Benhai Yuan, Bin Shi
  • Stator housing for an electric machine, electric machine for a vehicle and vehicle
    Patent number: 11515755
    Abstract: Stator housing for an electric machine, includes a plurality of axially extending main channels, wherein pairs of adjacent main channels are connected by deflection channels to form a meandering cooling path for a coolant, and a plurality of connection channels that connect each pair of adjacent main channels in a fluid conductive manner at an axial position between the deflection channels.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 29, 2022
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventors: Nils Krais, Philipp Söntgerath