Patents Issued in April 14, 2022
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Publication number: 20220115886Abstract: An apparatus for defining an AC power source having a predetermined amperage rating and for use with a pallet truck or fork lift lifting device. The apparatus includes a pair of terminal banks, a battery, a converter adapted to change DC to AC power, a relay, a controller, and a base adapted for engagement by the lifting device for transport of the apparatus. The apparatus is shaped so that it can be transported by the lifting device through a doorway. A pair of terminal banks, battery, converter, relay and controller are coupled to one another and configured for selective operation in a standalone configuration or a stacked configuration.Type: ApplicationFiled: October 11, 2021Publication date: April 14, 2022Applicant: VCM Solutions Inc.Inventor: Ven Casto
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Publication number: 20220115887Abstract: The embodiment of the invention discloses a battery charging and discharging circuit, comprising: a battery module (1), configured to receive charging voltage or release discharging voltage; a transformer circuit (2), connected with the battery module (1), the transformer circuit (2) is configured to convert a first charging voltage into a charging voltage or convert a discharging voltage into a first discharging voltage; a buck-boost circuit (3), connected with the transformer circuit (2), the buck-boost circuit (3) is configured to convert a second charging voltage into the first charging voltage or convert the first discharging voltage into a second discharging voltage; a power grid end or user end (4), connected with the buck-boost circuit (3), the power grid end or user end (4) is configured to generate the second charging voltage or receive the second discharging voltage.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Daqing Wang, Yuezhen Hu, Haisheng Song
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Publication number: 20220115888Abstract: The power conversion system includes a power conversion circuit, a power conversion control circuit including a charging control mode, and a command value generating part. The charging control mode is a mode in which the output voltage of the power conversion circuit is controlled so that an interconnection inductance receives an interconnection inductance voltage determined by the power supply voltage vector of the AC power supply and the voltage command value vector having a delay phase with respect to the power supply voltage vector and having a magnitude and a phase based on the command value. The command value generating part generates a second command value for operation of the charging control mode when the voltage of the storage battery falls below the over-discharge threshold.Type: ApplicationFiled: May 29, 2019Publication date: April 14, 2022Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventor: Yoshinori TSURUMA
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Publication number: 20220115889Abstract: A battery charger includes a battery power regulator configured to set a charge signal provided to a battery based on a charge control signal and charge enable signal. The battery charger also includes a controller configured to provide the charge control signal to the battery power regulator. The controller is also configured to temporarily de-assert the charge enable signal for a predetermined amount of time in response to determining that a change is needed in the charge control signal. The controller is further configured to re-assert the charge enable signal after the predetermined amount of time.Type: ApplicationFiled: December 21, 2021Publication date: April 14, 2022Inventors: Mustapha El Markhi, Alejandro Vera, Rohit Bhan
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Publication number: 20220115890Abstract: The present disclosure provides a control device for a secondary battery, and the control device includes a controller configured to correct battery characteristics on an open circuit voltage to a remaining capacity of the secondary battery. In the control device for the secondary battery, the controller acquires data of a plurality of open circuit voltages in the battery characteristics during charging the secondary battery. When the secondary battery is fully charged, the controller corrects the open circuit voltages between respective pairs selected and combined from at least one part of the data of the plurality of open circuit voltages. The controller weighted-averages and corrects full charge capacities, which are calculated by the correction of the open circuit voltages between the respective data pairs, with differences each between respective remaining capacities each corresponding between the respective data pairs.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Kazuhiko NAMIKAWA, Yudai YAMAGUCHI, Junya KAMIJIMA, Toru WANIBUCHI
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Publication number: 20220115891Abstract: The embodiment of the application discloses a power replenishment system and method for energy storage device. The power replenishment system for energy storage device comprises: an energy storage device, and the energy storage device comprises a DC charging interface for power replenishment; a power replenishment device, comprising a DC output interface arranged to be connected with the DC charging interface, the power replenishment device is connected with a power grid end, and the power replenishment device is configured to convert an AC voltage of the power grid end into a DC voltage and transmit the DC voltage to the energy storage device via the DC output interface.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Gang Xiao, Daqing Wang, Yuezhen Hu
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Publication number: 20220115892Abstract: An electric work machine (1), such as a power tool, comprises a motor (50), a manipulatable part (12) such as a trigger switch, and a control part (36). The motor is energized with electric current supplied by a battery pack (22). By manipulating the manipulatable part, the control part energizes the motor. The control part also acquires information concerning the state of the battery from the battery pack, and, if appropriate based on the information obtained from the battery pack, takes measures (such as limiting a discharge current) to restrain, delay and possibly avert the performance of a protection (discharge-prohibited) operation by the battery pack.Type: ApplicationFiled: September 11, 2019Publication date: April 14, 2022Inventors: Yoshitaka ICHIKAWA, Tadahiko KOBAYAKAWA
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Publication number: 20220115893Abstract: In certain aspects, a method for a battery charging in a wireless device comprises obtaining a fast charging condition; determining a current condition of the wireless device; and enabling or disabling the fast charging by comparing the current condition with the fast charging condition.Type: ApplicationFiled: January 21, 2019Publication date: April 14, 2022Inventor: Xiaofeng LING
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Publication number: 20220115894Abstract: Recharging of a secondary battery within a short time after the battery is fully charged is prevented. A method of achieving this prevention includes: a charging step of charging a secondary battery by external power until a charging amount of the secondary battery becomes equal to a fully charged amount, while stopping a driving component; and a stop continuation step of stopping the charging of the secondary battery by the external power and stopping a driving component in a stop continuation period in which the charging amount of the secondary battery decreases from the fully charged amount to a predetermined charging amount.Type: ApplicationFiled: October 12, 2021Publication date: April 14, 2022Applicant: NITTO DENKO CORPORATIONInventors: Hisashi TSUDA, Taiki SUEYOSHI, Masami INOUE, Hajime NISHIO
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Publication number: 20220115895Abstract: An electronic device is provided. The electronic device includes at least one battery, a charging circuit, a display, at least one processor, and a memory, the charging circuit is configured to charge the at least one battery or supply power to the at least one processor and/or the display by receiving charging power provided from an outside, and the at least one processor is configured to operate based on at least part of the power supplied from the charging circuit while the electronic device is in an off-state, and to identify whether the at least one battery is in an overdischarged state, and based on identifying that the at least one battery is in the overdischarged state, display, on the display, at least one image representing a state of the at least one battery among a plurality of images stored in the memory.Type: ApplicationFiled: October 13, 2021Publication date: April 14, 2022Inventors: Soochan PARK, Wonwook LEE, Taeyoun KWON, Hyunjae KIM, Jinsung PARK, Changmin OH, Jinyoung JANG
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Publication number: 20220115896Abstract: Inductive charging techniques utilize a plurality of transmitter coils arranged in a predetermined configuration and each being configured to, when active, inductively transfer power to a receiver coil of a wireless device and a controller configured to control a charging session during which power is inductively transferred from at least one of the plurality of transmitter coils to the receiver coil of the wireless device, including monitoring electrical parameters of at least two transmitter coils of the plurality of transmitter coils, wherein the at least two monitored transmitter coils comprise at least one active transmitter coil, based on the monitoring, determining a position of the receiver coil relative to the plurality of transmitter coils, and selectively activating and/or deactivating at least one of the plurality of transmitter coils based on the monitoring when the position of the receiver coil changes to provide uninterrupted inductive power transfer.Type: ApplicationFiled: October 14, 2020Publication date: April 14, 2022Applicant: Aptiv Technologies LimitedInventors: James R. Cook, Nicolas A. Carbone
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Publication number: 20220115897Abstract: A power supply system that utilizes a hybrid architecture to enable low cycle-life, high energy density chemistries to be used in rechargeable batteries to extend the range of a traction battery.Type: ApplicationFiled: September 17, 2021Publication date: April 14, 2022Applicant: Our Next Energy, Inc.Inventor: Mujeeb Ijaz
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Publication number: 20220115898Abstract: A system comprising a high voltage (HV) bank section using energy storage devices arranged into one or more banks, an inductive device coupling the HV bank to a service voltage (SV) bank section and load through a charging circuit charging the SV bank from a more fully charged bank until the charging bank is depleted, and a switch switching, from the depleted bank to the other bank to charge the SV bank. The charging circuit then charging the depleted bank by a power supply as the other HV bank charges the SV bank. A supervisory controller controls the switch to repeat discharging and charging between the two banks for a defined period. The energy storage devices may be supercapacitors having a capacitance on the order of 1 to 10 MegaJoules, and the inductive device may be a high-inductance, toroidal multifilar inductor.Type: ApplicationFiled: December 18, 2021Publication date: April 14, 2022Inventor: Brian Elfman
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Publication number: 20220115899Abstract: A renewable energy source generator comprising a base, a power module, a marine switch panel, and an electric output device. A renewable energy source generator system.Type: ApplicationFiled: October 14, 2021Publication date: April 14, 2022Applicant: Merritt IP Holdings, LLCInventor: Wilton Damond Merritt
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Publication number: 20220115900Abstract: An automatic transfer switch includes a first conduction bar selectively coupled with a first power source and a load conduction bar; a second conduction bar selectively coupled with a second power source and the load conduction bar; a first blade assembly electrically coupled to the first conduction bar; and a second blade assembly electrically coupled to the second conduction bar. The first blade assembly is electrically coupled to a first source conduction bar in a closed position, and a first electromagnetic force induced by a first current flowing through the first blade assembly and the first conduction bar repulses the first blade assembly. The second blade assembly is electrically coupled to a second source conduction bar in a closed position, and a second electromagnetic force induced by a second current flowing through the second blade assembly and the second conduction bar repulses the second blade assembly.Type: ApplicationFiled: August 2, 2021Publication date: April 14, 2022Applicant: Generac Power Systems, Inc.Inventors: Nick Brusky, Joseph Gerovac
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Publication number: 20220115901Abstract: A power supply system with UPS, PCS and circuit diagnosis capabilities is disclosed, including: a DC-bus connected to a voltage/current (V/I) meter, a battery energy storage system (ESS) container, a power conditioning system (PCS), at least one current translation unit, and an energy management controller (EMC), wherein, the V/I meter is used to monitor the voltage and current of the DC-bus, and the PCS performs bi-directional conversion between the DC current from the DC-bus and the AC power from an external distribution panel, the current translation unit translate the DC current from the DC-bus into a voltage suitable for at least a critical load, and the EMC controls the operation of the V/I meter, the battery ESS container, the PCS, and the at least one current translation unit, respectively.Type: ApplicationFiled: November 23, 2020Publication date: April 14, 2022Inventors: Shou-Hung Welkin Ling, I-Sheng Hsu, Jui-Yang Tsai
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Publication number: 20220115902Abstract: The present specification relates to a power supply system capable of supplying uninterruptible power, the system comprising a plurality of circuit breakers for controlling the connections between a plurality of power source modules, to control power demand and supply through opening or closing of the circuit breakers according to various situations occurring in the system, so as to enable a UPS function between the plurality of power source modules.Type: ApplicationFiled: September 10, 2019Publication date: April 14, 2022Inventors: Minjun PARK, Dongjin YUN, Jihong KIM, Dohyun KIM, Kwangkyu HWANG
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Publication number: 20220115903Abstract: A control device of an uninterruptible power supply apparatus turns on a first switch and a second switch and turns off a third switch in an inverter power feed mode, turns on the first and third switches and turns off the second switch in a bypass power feed mode, and executes a lap power feed mode of turning off the first switch and turning on the second and third switches in a switching period in which one mode of the inverter power feed mode and the bypass power feed mode is switched to the other mode.Type: ApplicationFiled: June 25, 2019Publication date: April 14, 2022Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventor: Shoichi ABE
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Publication number: 20220115904Abstract: A power source switching circuit is disclosed. The power source switching circuit includes a voltage regulator, a first transistor and a second transistor. The first transistor is coupled with a first voltage source and the second transistor is coupled with a second voltage source. The voltage regulator includes a resistor, one or more diodes coupled together in series and a capacitor. Terminals of the capacitor are coupled between a gate and a source of the first transistor through a first switch and a second switch respectively. The capacitor is configured to hold charge to switch the first transistor on. A value of the capacitor is smaller than a gate to source capacitance of the first transistor.Type: ApplicationFiled: October 9, 2020Publication date: April 14, 2022Inventors: Siamak Delshadpour, Madan Mohan Reddy Vemula, Steven Daniel
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Publication number: 20220115905Abstract: Systems for extracting electrical energy in power cables, from the electric field, without making electrical contact with the main conductors of the cable, which comprises a power cable and an extraction device of energy from the electric field, which captures the electric field inside the power cable, with alternating or direct voltage. Devices for extracting energy from the electric field. Manufacturing methods of the energy extraction system in power cables from the electric field. Manufacturing methods of the energy extraction device.Type: ApplicationFiled: October 27, 2021Publication date: April 14, 2022Inventors: Borja Rodriguez Rios, Mariano Lopez Gomez
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Publication number: 20220115906Abstract: A self-powered wireless keyboard by modifying the structure of a traditional membrane keyboard having a volcanic crater structure. Not damaging the original membrane keyboard structure, a micro magnet core is installed inside a cylindrical protrusion block under the key cap as a mover of the induction power generation device, and an induction coil is wound in a key slot of the keyboard base as the stator of the induction power generation device. In this way, when each key is pressed, it will produce induction current. A layer of flexible solar cell can be laid on the upper surface of the key, which can generate electricity by collecting the light energy in the surrounding environment during the time of daily illumination.Type: ApplicationFiled: September 26, 2021Publication date: April 14, 2022Inventors: Fang DENG, Yanxin JI, Xinyu FAN, Yeyun CAI, Chengwei MI, Feng GAO, Jie CHEN, Lihua DOU
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Publication number: 20220115907Abstract: A device for wireless charging of portable electronic devices is provided. The device is capable of being fixed to a piece of furniture and includes a charger configured to transmit electricity via induction; a horizontal arm of an angular shelf beneath which the charger is mounted; and an angular bracket configured to mount the device to the piece of furniture by adjusting a spacing between a vertical arm of the angular bracket and a vertical arm of the angular shelf to approximately a width of the piece of furniture, wherein the charger is mounted between the angular bracket and the angular shelf, and wherein the angular bracket is slidably mounted in relation to the vertical arm of the angular shelf.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Wieslaw Bober, Kamil Sienkiel, Dominik Stanislaw Sienkiel
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Publication number: 20220115908Abstract: A system and method for variable power transfer in an inductive charging or power system. In accordance with an embodiment the system comprises a pad or similar base unit that contains a primary, which creates an alternating magnetic field. A receiver comprises a means for receiving the energy from the alternating magnetic field from the pad and transferring it to a mobile device, battery, or other device. In accordance with various embodiments, additional features can be incorporated into the system to provide greater power transfer efficiency, and to allow the system to be easily modified for applications that have different power requirements. These include variations in the material used to manufacture the primary and/or the receiver coils; modified circuit designs to be used on the primary and/or receiver side; and additional circuits and components that perform specialized tasks, such as mobile device or battery identification, and automatic voltage or power-setting for different devices or batteries.Type: ApplicationFiled: October 21, 2021Publication date: April 14, 2022Applicant: Mojo Mobility, Inc.Inventors: Afshin Partovi, Michael Sears
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Publication number: 20220115909Abstract: A system and method for variable power transfer in an inductive charging or power system. In accordance with an embodiment the system comprises a pad or similar base unit that contains a primary, which creates an alternating magnetic field. A receiver comprises a means for receiving the energy from the alternating magnetic field from the pad and transferring it to a mobile device, battery, or other device. In accordance with various embodiments, additional features can be incorporated into the system to provide greater power transfer efficiency, and to allow the system to be easily modified for applications that have different power requirements. These include variations in the material used to manufacture the primary and/or the receiver coils; modified circuit designs to be used on the primary and/or receiver side; and additional circuits and components that perform specialized tasks, such as mobile device or battery identification, and automatic voltage or power-setting for different devices or batteries.Type: ApplicationFiled: October 21, 2021Publication date: April 14, 2022Applicant: Mojo Mobility, Inc.Inventors: Afshin Partovi, Michael Sears
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Publication number: 20220115910Abstract: A power transmission and reception system device includes: a first device including an outer surface on which a first image is represented; and a second device including an outer surface on which a second image is represented, the second device being placed on the first device. One of the first device and the second device is a power transmission device including a power transmission unit, and the other is a power reception device including a power reception unit. In a case where the power transmission device and the power reception device are positioned such that the first image and the second image are aligned, power can be fed such that a received voltage is greater than or equal to a predetermined value at the time of transmitting power to the power reception unit from the power transmission unit.Type: ApplicationFiled: September 15, 2021Publication date: April 14, 2022Inventors: Kozo MASUDA, Katsuhiko IZUMI
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Publication number: 20220115911Abstract: A wireless power transmitting terminal and control method are disclosed. The wireless power transmitting terminal including an inverter circuit, a resonance circuit and a controller, wherein in a frequency detection state, an alternating current of the inverter circuit is controlled to switch between different candidate frequencies, so as to determine a resonance frequency and a maximum peak value of an electrical parameter of the alternating current at the resonance frequency, and determine an operating state of the power transmitting terminal according to the change of the maximum peak value. Therefore, the wireless power transmitting terminal can dynamically adjust in real time a preset operating state thereof, thereby improving the device adaptability, and avoiding the damage of the device to be charged.Type: ApplicationFiled: September 28, 2021Publication date: April 14, 2022Applicant: NINGBO WEIE ELECTRONICS TECHNOLOGY LTD.Inventors: Feng Yu, Lizhi Xu, Weiyi Feng, Min Fu
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Publication number: 20220115912Abstract: The present disclosure provides a charging module and a dual-mode wireless charging system. The charging module includes: a DC/DC converter circuit, a low-frequency charging unit, a high-frequency charging unit, and a controller. The low-frequency charging unit includes low-frequency coils, a low-frequency compensation circuit, and a low-frequency rectifier circuit connected to the DC/DC converter circuit being successively connected. The high-frequency charging unit includes high-frequency coils, a high-frequency tuning circuit, and a high-frequency rectifier circuit connected to the DC/DC converter circuit being successively connected.Type: ApplicationFiled: October 13, 2021Publication date: April 14, 2022Inventors: Ying Liu, Songnan Yang
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Publication number: 20220115913Abstract: Disclosed herein are systems and methods for low power excitation of wireless power transmitters configured to transmit high power. The exemplary systems and methods include disabling a power factor correction circuit of the transmitter, and adjusting one or more variable impedance components of the impedance network to obtain a minimum attainable impedance. The variable impedance components can be configured to operate between the minimum attainable impedance and a maximum attainable impedance. The systems and methods can include adjusting a phase shift angle associated with one or more transistors of the inverter and driving the transmitter such that the transmitter resonator coil generates a magnetic flux density less than or equal to a field safety threshold.Type: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Inventors: Bryan Esteban, Milisav Danilovic, Kylee Devro Sealy
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Publication number: 20220115914Abstract: A power transfer system comprises a patient support apparatus and a separate power transfer device. The patient support apparatus comprises a support structure having a base and a patient support surface for a patient and wheels coupled to the support structure to facilitate movement of the patient support apparatus over a floor surface. One or more of the wheels includes a power receiver integrated therewith. The power transfer device is energizeable to interact with the wheel to facilitate power transfer between the power transfer device and the power receiver through the wheel.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: Stryker CorporationInventors: Alexey Titov, Michael Hayes, Ming Chen, Jeffrey S. Dunfee, II
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Publication number: 20220115915Abstract: Disclosed are a wireless charging apparatus, a wireless charging method, and a wireless charging system. The wireless charging apparatus includes: a charging interface; a wireless transmitting circuit configured to convert electric energy outputted from a power supply apparatus into an electromagnetic signal and transmit the electromagnetic signal to wirelessly charge a device to be charged; and a control module configured to determine a wireless charging mode to be adopted as a first wireless charging mode or a second wireless charging mode through communication between the wireless transmitting circuit and the device to be charged, periodically detect whether a condition for exiting the first wireless charging mode has occurred when in the first wireless charging mode, and adjust a current wireless charging mode to the second wireless charging mode in response to detecting that the condition for exiting the first wireless charging mode has occurred.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Shangbo LIN, Shiming WAN, Jun YANG
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Publication number: 20220115916Abstract: This document describes a passive adapter for wireless charging of an electronic device and associated methods and systems. The described passive adapter includes two coils connected by a capacitor and separated by a core material that prevents mutual coupling between the coils. These two coils may have differing sizes, such that one coil can size-match to a transmitter coil of an existing wireless charger and the second coil can size-match to a smaller (or larger) receiver coil in a wireless-power receiver to charge a battery of the wireless-power receiver. In aspects, these two coils may be separated by a distance that enables the passive adapter to act as a passive repeater by bridging a space between the transmitter coil and the receiver coil.Type: ApplicationFiled: February 12, 2020Publication date: April 14, 2022Applicant: Google LLCInventors: Liang Jia, Srenik Suresh Mehta
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Publication number: 20220115917Abstract: An object detection system for a wireless power transfer system is provided. The systems detect foreign objects such as metal objects between a receiver pad and a transmission pad of the wireless power transfer system. The systems utilize various configurations of detection coils to prevent blind spots and ensure efficiency. The systems utilize various circuits to amplify signals generated by the systems and ensure accuracy. The systems prevent hazards associated with magnetic inductive power transfer.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventor: Rakan Chabaan
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Publication number: 20220115918Abstract: The present disclosure provides for a wearable device having a wireless power receiving system that may inductively receive or transmit power. The wireless power receiving system includes a receiver coil having a profile that follows a contour of a bottom cover of the wearable device. A transmitter coil from a wireless charging device has a complementary profile that mates with the profile defined by the receiver coil. In one example, the wireless power receiving system includes a shielding, and a receiver coil attached to the shielding. The receiver coil further includes an inner wall and an outer wall connected by a top surface of a coil body. The inner wall defines a center opening in the receiver coil, wherein the receiver coil is conical in shape.Type: ApplicationFiled: October 8, 2020Publication date: April 14, 2022Inventors: Qi Tian, Liang Jia, Tressa Christie Scott, Srikanth Lakshmikanthan
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Publication number: 20220115919Abstract: A motor has windings and a control device, which applies appropriately one-way current to each of the windings. Two full-pitch windings, which are located adjacently to both ends of an A-phase stator magnetic pole, and driving transistors are connected in series to each other to supply an A-phase current component, thereby exciting an A-phase magnetic flux component passing through the A-phase stator magnetic pole, resulting in generation of torque. This excitation is also applied to other phases. The respective stator magnetic poles can be excited selectively, and voltages across both ends of the serially connected windings become a voltage for corresponding magnetic flux components which should be provided by the windings, thus providing a more simplified motor structure and higher motor performance. The windings and transistors can be used commonly in two phases, providing an improved usage rate, thus making the motor more compact in size and reducing manufacturing cost.Type: ApplicationFiled: July 24, 2019Publication date: April 14, 2022Inventor: Masayuki NASHIKI
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Publication number: 20220115920Abstract: A stator of a directly driven wind turbine generator includes a stator support, and stator segments arranged around a circumference and positioned on flanges of the stator support. Each stator segment includes a segment support having a cavity. Securing devices secure the stator segments via the segment supports to the flanges of the stator support. The securing devices have each an intermediate piece to complement the cavity of a corresponding one of the segment supports, and an alignment pin to secure the intermediate piece in position and to adjust an air gap of the wind turbine generator.Type: ApplicationFiled: January 28, 2020Publication date: April 14, 2022Applicant: Flender GmbHInventors: ATTILA KOESZEGI, ANDREAS LINDMEIER, DOMINIK RATZISBERGER, FRANZ XAVER MICHAEL SCHOBER, CHRISTOPH SCHWARZBAUER, LEI YUE
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Publication number: 20220115921Abstract: A stator (5) for an electrical machine (1) is described, which comprises an annular stator base body (7) with stator grooves (13, 13a, 13b) which are open towards the inside, and stator coils (14a, 14b) of a stator winding (8) which are arranged in the stator grooves (13, 13a, 13b) and assigned to a plurality of phases (L1 . . . L3) of the electrical machine (1). Adjacent stator coils (14a, 14b) of the same phase (L1 . . . L3) are here contra-wound and electrically connected in parallel. Furthermore, an electrical machine (1) with such a rotor (3a . . . 3c), and a drive arrangement and a vehicle (17) with such an electrical machine (1) are described.Type: ApplicationFiled: October 12, 2021Publication date: April 14, 2022Applicant: Valeo Siemens eAutomotive Germany GmbHInventors: Michael Mueller, Michael Menz
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Publication number: 20220115922Abstract: An electric motor assembly includes a housing having a generally cylindrical inner surface defining a generally cylindrical cavity within the housing, a stator operatively disposed within the generally cylindrical cavity, the stator including a plurality of stacked laminations wherein each lamination has an outer circumferential edge and a plurality of finger elements extending inward, and a layer of polymer disposed between a generally cylindrical outer surface of the stator and the generally cylindrical inner surface of the housing, such that the stator is fastened to the housing by the polymer. A method of manufacturing the electric motor assembly includes disposing a stator within a housing such that a gap is defined between the stator and the housing and the stator is not directly connected to the housing, and substantially filling the gap with a polymer capable of fastening the stator to the housing by only the polymer.Type: ApplicationFiled: October 9, 2020Publication date: April 14, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Anthony M. Coppola, Alireza Fatemi, William T. Ivan, Song He, Yew Sum Leong
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Publication number: 20220115923Abstract: An electric motor which is designed as an internal rotor, comprising a laminated stator core and a functional support which is arranged on a rear side that faces away from an output side of the laminated stator core. The functional support includes a plastic housing and connecting elements which are integrated in the plastic housing and protrude therefrom in the axial direction of the laminated stator core. The functional support is interlocking and/or integrally connected to the laminated stator core in the axial direction at a lateral outer surface of the laminated stator core by means of the connecting elements.Type: ApplicationFiled: January 9, 2020Publication date: April 14, 2022Applicant: Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, WürzburgInventors: Steffen MANGER, Sven Anton BÜCHNER, Benjamin NELSON, Florian WINTER, Anna FESER, Steffen REIHER, Christof GOEKE, Marcus BALSAM
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Publication number: 20220115924Abstract: Disclosed in the present invention are a cooling system, a stator assembly, and an axial magnetic field motor. The cooling system is used for cooling of a stator core, comprises a housing and an enclosed cavity for containing the stator core, and further comprises: a liquid spraying cavity provided on the housing and used for containing liquid; a liquid inlet in communication with the liquid spraying cavity; a liquid outlet in communication with the enclosed cavity; and a liquid spraying assembly provided on an inner wall, corresponding to the stator core, of the housing.Type: ApplicationFiled: December 27, 2019Publication date: April 14, 2022Inventors: Guangquan ZHANG, Lei TANG, Liang PENG
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Publication number: 20220115925Abstract: An axial flux motor incorporates a rotor having a plurality of pockets receiving magnet assemblies. A retention device is engaged from an inactive surface of at least one magnet assembly to one or more structural elements surrounding an associate one of the plurality of pockets in the rotor.Type: ApplicationFiled: October 7, 2021Publication date: April 14, 2022Inventors: Michael R. Ricci, David B. Paden, Brian J. Clark, Claire Cappe, Zachary J. Marshall, Bradley E. Paden
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Publication number: 20220115926Abstract: The invention relates to a rotating electrical machine (1) comprising a housing (10) including two bearings (52, 53), a rotor shaft (5) mounted to rotate freely in the housing via the bearings, a rotor (6) clamped to the rotor shaft so as to rotate the rotor shaft and comprising first (62) and second (63) axial end faces, and a cooling circuit comprising a coolant supply duct (51) arranged coaxially in the rotor shaft, and a radially oriented feed duct (54) arranged in the rotor shaft and in fluid communication with the supply duct and the rotor, characterized in that the cooling circuit further comprises a cooling chamber (61) in fluid communication with the feed duct, extending axially between the rotor and the rotor shaft, opening onto the first and second axial end faces and delimited radially by an angular portion of an external surface (55) of the rotor shaft and an angular portion (65) of an internal surface of the rotor, the two portions extending opposite and at a distance from one another.Type: ApplicationFiled: February 25, 2020Publication date: April 14, 2022Inventors: Ioan DEAC, Juan WANG, Hussain NOURI, Guillaume TARDY
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Publication number: 20220115927Abstract: A coil substrate includes a flexible substrate having a first end and a second end, and coils formed on the substrate such that the coils extend from the first end to the second end of the substrate. The coils are formed such that each coil includes a center space and a wiring formed around the center space, each coil is formed such that the wiring includes one or more first wirings, one or more second wirings facing the first wiring(s) via the center space, and one or more third wirings connecting the first and second wiring(s) and that the first wiring(s) is positioned closer to the first end than the second wiring(s), and the wiring in each coil is formed such that a width w1 of the first wiring(s), a width w2 of the second wiring(s), and a width w3 of the third wiring(s) are substantially equal to each other.Type: ApplicationFiled: September 30, 2021Publication date: April 14, 2022Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi MIWA, Shinobu KATO, Toshihiko YOKOMAKU, Hisashi KATO, Takahisa HIRASAWA, Tetsuya MURAKI, Takayuki FURUNO
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Publication number: 20220115928Abstract: A fan stator structure includes a silicon steel sheet lamination formed of a plurality of laminated silicon steel sheets located between a set of insulating supports and having coils wound thereon; and a plurality of conducting coil end holders respectively including a fixing section and a connecting section, and a receiving zone located between the two sections. The fixing and the connecting section are located at two opposite ends of the conducting coil end holder, and the fixing section is connected to the set of insulating supports. The receiving zone is configured for receiving a front and a back end of the coils, so that the front and back ends of the coils are in contact with the conducting coil end holders. With the conducting coil end holders, the fan stator structure can be manufactured with simplified procedures, reduced time and labor costs, and upgraded good yield rate.Type: ApplicationFiled: October 8, 2020Publication date: April 14, 2022Inventors: Yeh-Chih Lu, Hsin-Hung Chen
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Publication number: 20220115929Abstract: A slinger for an electric motor broadly includes a hub and a wheel. The motor includes a housing in which a stator and rotor are at least partly housed. The motor also includes a rotatable output shaft projecting upwardly through a shaft opening in the housing. The hub is fixedly attachable to the output shaft of the motor so that the slinger rotates with the output shaft. The wheel is configured to divert liquid radially away from the shaft opening. The wheel includes a wheel plate and a plurality of radially extending blades cooperatively forming a series of passages extending radially outward relative to the shaft opening, when the hub is attached to the output shaft. The wheel plate is supported by the hub so as to be positioned above the housing when the hub is attached to the output shaft. The blades present radially inboard ends intersecting the hub.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: Nidec Motor CorporationInventors: Richard L. Eason, Chetan O. Modi, Kevin L. West
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Publication number: 20220115930Abstract: A system for overcooling a drive motor and a method for controlling the same may include a first cooling loop in which a first coolant circulate, the first coolant being in a heat exchange with a power electronics (PE) part and a drive motor cooler mounted in the first cooling line and configured to cool cooling oil supplied to the drive motor fluidically connected to the drive motor cooler; a second cooling loop disposed independently from the first cooling loop, wherein a second coolant circulates in the second cooling loop, the second coolant being in a heat exchange with a battery module and a battery chiller mounted in the second cooling loop; and a switch unit configured to selectively shift a flow path of the second coolant such that the second coolant is in a heat exchange with the drive motor cooler.Type: ApplicationFiled: June 11, 2021Publication date: April 14, 2022Applicants: Hyundai Motor Company, Kia CorporationInventors: Byoung Hoon CHOI, Sung Hyun AHN, Hee Ra LEE, Jong Hyun KIM
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Publication number: 20220115931Abstract: A measurement system for an electrical machine includes a position sensor device arranged on a rotor of the electrical machine, a carrier connected to the position sensor device, and a temperature sensor device fastened to the carrier. The position sensor device is configured to ascertain an item of information about an orientation of the rotor. The temperature sensor is configured to ascertain a temperature of a stator of the electrical machine.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicants: TE Connectivity India Private Limited, TE Connectivity Germany GmbH, Volkswagen AG, TE Connectivity Belgium BVInventors: Bram Embo, Dirk Pillu, Rainer Schindel, Sebastian Wiechert, Mathias Dohmann, Manivasakan Ravinthiran
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Publication number: 20220115932Abstract: The present disclosure provides a magnetic sensor system for monitoring the position of the rotor relative to the stator for use in electronic motor commutation. The system uses two magnetic sensors with a back bias magnet, the magnetic sensors being configured to detect changes in the magnetic field direction caused by the magnetic field interacting with two moveable targets that are being rotated by the motor shaft. The unique phase shift between the signals measured at each sensor can thus be used to determine the relative position between the stator and the rotor. In this respect, the system makes use of the Nonius or Vernier principle to measure rotational displacement, however, the scale of the encoder is defined by the number of motor pole pairs.Type: ApplicationFiled: September 23, 2021Publication date: April 14, 2022Inventors: Jochen Schmitt, Enda Joseph Nicholl
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Publication number: 20220115933Abstract: An electronic system includes a casing including a first bearing surface, a first busbar attached to the casing and including a first connection end having a first connection surface, and an electronic unit having a second bearing surface and including a second busbar having a second connection end having a second connection surface. The second bearing surface is intended to slide on the first bearing surface when the electronic unit is inserted into the casing. One from among the first bearing surface and the second bearing surface includes a ramp that is inclined relative to the insertion direction for deforming the second busbar so as to bring the second connection surface closer to the first connection surface when the electronic unit is inserted into the casing. An electrical assembly may include such an electronic system and a rotary electric machine.Type: ApplicationFiled: March 3, 2020Publication date: April 14, 2022Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEURInventors: Alexis HOSNI, Mathieu VARILLON
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Publication number: 20220115934Abstract: A manufacturing method of fan stator structure includes the steps of providing a fan stator; providing a plurality of coil lead wire holders at an end of the fan stator; and winding lead wires on the fan stator to form coils, and setting and connecting a front end and a back end of each of the lead wires to the coil lead wire holders. The above method eliminates the drawbacks of the conventional fan stator coil winding operation, such as requiring manual twisting and trimming of the lead wire front ends and back ends and leaking of tin solder occurred during welding of the lead wires to a circuit board.Type: ApplicationFiled: October 8, 2020Publication date: April 14, 2022Inventors: Yeh-Chih Lu, Hsin-Hung Chen
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Publication number: 20220115935Abstract: A stator core comprises a stack and a resin portion. The stack comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The resin portion covers an inner wall surface of a slot of the plurality of slots. The resin portion protrudes outward relative to an end surface of the stack in a height direction of the stack. The resin portion is formed on at least a part of an end surface of the tooth portion so as to extend from the inner wall surface of the slot around the end surface of the tooth portion. A resin end portion of the resin portion is disposed on the end surface of the stack and a corner of the resin end portion is formed as an inclined surface including a planar surface or curved surface.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Iwao MYOJIN, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA