公开(公告)号：US11967835B2

公开(公告)日：2024-04-23

申请号：US17621316

申请日：2019-07-19

Applicant: OMRON Corporation

Inventor： Manh Tai Nguyen ,  Kentaro Hamana ,  Akito Murai ,  Yoshiki Sugimoto

IPC: H02J50/60 ,  H02J50/23 ,  H02J50/40

CPC classification number: H02J50/60 ,  H02J50/23 ,  H02J50/40

Abstract: A power supply apparatus according to the present invention includes a power supply antenna, a directivity control unit, a position information acquisition unit, and a control unit. The power supply antenna emits, to a plurality of power reception apparatuses, a radio wave that is based on a power supply signal. The directivity control unit controls directivity of the power supply antenna. The position information acquisition unit acquires position information indicating a position of a moving obstruction. The control unit determines, based on the position information, a power reception apparatus, among the plurality of power reception apparatuses, to which power is supplied while avoiding the obstruction. The control unit controls the directivity control unit to steer the radio wave toward the determined power reception apparatus.

公开(公告)号：US11955817B1

公开(公告)日：2024-04-09

申请号：US18368822

申请日：2023-09-15

Applicant: Reach Power, Inc.

Inventor： Hunter Scott ,  Gustavo Navarro ,  Robert J. Tong ,  Christopher Joseph Davlantes

IPC: H02J50/60 ,  H02J50/20 ,  H02J50/40

CPC classification number: H02J50/60 ,  H02J50/20 ,  H02J50/40

Abstract: A system for wireless power transmission, preferably including one or more power transmitters, detectors, and/or processing modules, and optionally including one or more power receivers and/or auxiliary sensors. A method for field detection, preferably including transmitting power, receiving latent scattering signals, analyzing the scattering signals, and/or acting based on the analysis.

公开(公告)号：US11949255B2

公开(公告)日：2024-04-02

申请号：US18198858

申请日：2023-05-18

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Wilhelmus Gerardus Maria Ettes ,  Eddy Gerrit Veltman ,  Henricus Antonius Gerardus Van Vugt

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/60 ,  H04B5/00

CPC classification number: H02J50/80 ,  H02J50/10 ,  H02J50/60 ,  H04B5/0037

Abstract: A power transfer device is a power transmitter (201) or a power receiver (205) conducting power transfer using an electromagnetic power transfer signal employing a repeating time frame comprising a power transfer time interval and an object detection time interval. A power transfer circuit (303, 307) comprises a power transfer coil (203, 207) receiving or generating the power transfer signal during the power transfer time intervals. A communicator (315, 323) communicates with the other device via an electromagnetic communication signal. A communication resonance circuit (317, 321) comprises a communication antenna (319, 325) for transmitting or receiving the electromagnetic communication signal. During the communication, the communication resonance circuit (317, 321) provides a resonance at a first resonance frequency to the communicator (315, 323). A controller (333, 335) adapts the communication resonance circuit to not provide the resonance at the first resonance frequency to the communicator during object detection time intervals. The approach may provide improved detection of resonance objects, such as smart cards (e.g. NFC cards).

公开(公告)号：US11945318B2

公开(公告)日：2024-04-02

申请号：US17844723

申请日：2022-06-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daiki Yokoyama ,  Toshiya Hashimoto ,  Shuntaro Okazaki ,  Shogo Tsuge ,  Kazuhisa Matsuda

IPC: B60L53/12 ,  A61N1/37 ,  B60L53/60 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

CPC classification number: B60L53/12 ,  A61N1/37 ,  B60L53/60 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

Abstract: The power supply apparatus includes a power transmission apparatus configured to transmit power to a power reception apparatus of the vehicle by non-contact and a processor configured to control the power transmission apparatus, detect a pickup/dropoff operation at the vehicle when power is being supplied by non-contact from the power supply apparatus to the vehicle, and detect a number of surrounding vehicles being supplied with power by non-contact in a predetermined range at surroundings of the power supply apparatus. The processor is configured to decrease power transmitted from the power transmission apparatus to the power reception apparatus when detecting a pickup/dropoff operation, and determine an amount of decrease of the transmitted power based on the number of surrounding vehicles.

公开(公告)号：US11942799B2

公开(公告)日：2024-03-26

申请号：US17245956

申请日：2021-04-30

Applicant: NuCurrent, Inc.

Inventor： Andrew Kovacs ,  Jason Green

IPC: H02J50/80 ,  H01F27/28 ,  H01F27/36 ,  H01F38/14 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70 ,  H02J50/90 ,  H01F27/24

CPC classification number: H02J50/80 ,  H01F27/28 ,  H01F27/36 ,  H01F38/14 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70 ,  H02J50/90 ,  H01F27/24

Abstract: A power transmitter for wireless power transfer includes a sensing system, a feedback mechanism and a control and communications unit includes a controller configured to receive object detection data from the sensing system, if a power receiver is detected, reset an alert timer, if the power receiver has been detected and a disconnect is detected, determine if an alert timer value is greater than an alert threshold, if a disconnect is detected and the alert timer value is greater than the alert threshold, instruct the feedback mechanism to output an alert. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal and a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face.

公开(公告)号：US20240085052A1

公开(公告)日：2024-03-14

申请号：US18518030

申请日：2023-11-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadafumi NISHIMURA ,  Hiroshi DOUMAE ,  Tetsuya OKAMOTO ,  Takuya HANADA

IPC: F24F11/88 ,  F24F11/56 ,  F24F11/70 ,  H02J50/60

CPC classification number: F24F11/88 ,  F24F11/56 ,  F24F11/70 ,  H02J50/60 ,  F24F2120/10

Abstract: An air conditioning unit includes an indoor air conditioner, a power supply line, and a wireless power feeder. The indoor air conditioner conditions air in a target space. The power supply line supplies power to the indoor air conditioner. The wireless power feeder feeds power to a predetermined device disposed in the target space. The wireless power feeder acquires power from the power supply line.

公开(公告)号：US11923698B2

公开(公告)日：2024-03-05

申请号：US17664365

申请日：2022-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinsoo Choi ,  Bohwan Choi ,  Sungbum Park ,  Youngho Ryu ,  Kyungmin Lee ,  Sangwook Lee

IPC: H02J50/60 ,  G01R19/10 ,  G01V3/10 ,  H02J50/10

CPC classification number: H02J50/60 ,  G01R19/10 ,  G01V3/10 ,  H02J50/10

Abstract: A detection coil includes a first sub coil disposed on a first PCB, the first sub coil includes a first part, and a second part that is disposed under the first part and that includes: one end connected to one end of the first part and is wound in a direction opposite to a direction the first part is wound. The detection coil includes a second sub coil disposed on a second PCB and including a third part and a fourth part disposed under the third part. The fourth part includes one end connected to one end of the third part, and is wound in a direction opposite to a direction the third part is wound. The first and second parts have polygonal shapes symmetrical to each other. The third and fourth parts have polygonal shapes symmetrical to each other. The first and second sub coils are arranged to partially overlap each other.

公开(公告)号：US11909227B2

公开(公告)日：2024-02-20

申请号：US17835832

申请日：2022-06-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takahiro Shichino

IPC: H02J50/60 ,  H02J50/80 ,  H02J50/12

CPC classification number: H02J50/60 ,  H02J50/12 ,  H02J50/80

Abstract: A power transmitting apparatus sets, on the basis of transmission power set with the power receiving apparatus, a first threshold for determining whether or not a foreign object exist, and a second threshold lower than the first threshold. The first and second threshold are set so that the difference between the first and second threshold values becomes larger as the set transmission power becomes larger. The power transmitting apparatus determines: that a foreign object exists in a case where the power loss is greater than the first threshold; that a foreign object does not exist in a case where the power loss is less than the second threshold; and that there is a possibility of a foreign object existing in a case where the power loss is between the first threshold and the second threshold.

公开(公告)号：US11899160B2

公开(公告)日：2024-02-13

申请号：US17896882

申请日：2022-08-26

Applicant: LASERMOTIVE, INC.

Inventor： Jordin T. Kare ,  Thomas J. Nugent ,  David Bashford ,  Carsten Casey Erickson ,  Thomas W. Bashford

IPC: G01V8/22 ,  G01S17/87 ,  G01S17/88 ,  G01S7/00 ,  G01S7/484 ,  H01S5/00 ,  H01S5/062 ,  H01S5/42 ,  H04B10/80 ,  H02J50/60 ,  H02J50/30 ,  H04B10/114 ,  G01S17/04 ,  G01S17/89 ,  H02J50/10 ,  H02J50/90 ,  G01S17/06

CPC classification number: G01V8/22 ,  G01S7/003 ,  G01S7/006 ,  G01S7/484 ,  G01S17/04 ,  G01S17/06 ,  G01S17/87 ,  G01S17/88 ,  G01S17/89 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/06216 ,  H01S5/423 ,  H02J50/10 ,  H02J50/30 ,  H02J50/60 ,  H02J50/90 ,  H04B10/1141 ,  H04B10/807

Abstract: A system to detect obstacles includes a power beam transmission circuit, a power beam reception circuit arranged to receive a power beam from the power beam transmission circuit, an emitter module, and a detector module arranged to distinguish between a first characteristic and a second characteristic. The emitter module includes a first emitter arranged to emit a first signal having the first characteristic, the first signal emitted in proximity to the power beam, and a second emitter arranged to emit a second signal having the second characteristic, the second characteristic different from the first characteristic, the second signal emitted in proximity to the first signal. The detector module includes a first detector arranged to respond to the first signal emitted by the first emitter, wherein the detector module is arranged to determine when an obstacle is in or near a line-of-sight transmission path between the first emitter and the first detector.

公开(公告)号：US11897348B2

公开(公告)日：2024-02-13

申请号：US17365257

申请日：2021-07-01

Applicant: TDK CORPORATION

Inventor： Akira Gotani

IPC: B60L53/124 ,  B60L53/38 ,  H02J50/60 ,  H02J50/90 ,  H02J13/00 ,  H02J50/40

CPC classification number: B60L53/124 ,  B60L53/38 ,  H02J50/60 ,  H02J50/90 ,  H02J13/00022 ,  H02J50/402

Abstract: A power transmission device that wirelessly transmits power to a vehicle, the power transmission device including an information emitter that, in a case in which the position of the vehicle acquired by the information acquirer is located in a power transmission range of the power transmission coil and, also, the instruction receiver receives the instruction about power transmission, emits a first type of information that indicates a presence of the foreign object when the detector detects the foreign object, and in a case in which the instruction receiver does not receive the instruction about power transmission even though the position of the vehicle acquired by the position information acquirer is located in the power transmission range of the power transmission coil, does not emit the information that indicates the presence of the foreign object.