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公开(公告)号：US20240090728A1
公开(公告)日：2024-03-21
申请号：US18273505
申请日：2021-12-14
Applicant: Dyson Technology Limited
Inventor： Edward Richard OLDFIELD , Peter James NEWELL , Christopher John BATEMAN , Sergio MINGUELA SANCHEZ
IPC: A47L9/28 , A46B13/00 , A46B13/02 , A47L9/00 , A47L9/04 , H01M10/42 , H01M10/48 , H01M50/204 , H01M50/247 , H01M50/256 , H01M50/258 , H01M50/51
CPC classification number: A47L9/2884 , A46B13/001 , A46B13/02 , A47L9/009 , A47L9/0477 , A47L9/2889 , H01M10/425 , H01M10/482 , H01M10/486 , H01M50/204 , H01M50/247 , H01M50/256 , H01M50/258 , H01M50/51 , A46B2200/3033 , H01M2010/4271 , H01M2010/4278 , H01M2200/10 , H01M2220/30
Abstract: A vacuum cleaner with a battery unit for powering the vacuum cleaner is provided. The battery unit includes a plurality of serially connected battery cells and battery management electronics operatively coupled to the battery cells. Two enclosures are provided on either side of a central axis of the vacuum cleaner, each enclosure including a portion of the plurality of battery cells, and a portion of the battery management electronics operatively coupled to the respective portion of the plurality of the battery cells. A link strap interconnects the portions of the battery management electronics.
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公开(公告)号：US20250049195A1
公开(公告)日：2025-02-13
申请号：US18720695
申请日：2022-12-13
Applicant: Dyson Technology Limited
Inventor： Bartosz SLAK , Michele BENETTI , Christopher John BATEMAN
Abstract: The present disclosure relates to haircare appliances. In particular, the present disclosure relates to a haircare appliance arranged for detecting a hair moisture content. Accordingly, there is provided a haircare appliance, comprising a processing element, at least one light emitting element emitting at least two wavelengths, and a sensor element, wherein the light emitting element is adapted to irradiate a portion of hair to be treated, wherein the sensor element is adapted to receive a sensor reading from an acquisition region of the irradiated hair and generate a sensor signal dependent on the sensor reading, wherein the sensor element is a spectral sensor element, and wherein the processing element is adapted to determine a moisture content of at least the irradiated portion of the hair from the sensor signal.
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公开(公告)号：US20240041571A1
公开(公告)日：2024-02-08
申请号：US18266704
申请日：2021-10-25
Applicant: Dyson Technology Limited
CPC classification number: A61C9/0053 , A61C15/047 , A46B15/0006 , A46B2200/108
Abstract: An oral treatment device includes image sensor equipment configured to generate image data indicative of a sequence of images representing at least a portion of an oral cavity of a user. The oral treatment device includes a controller configured to process the image data to determine a movement parameter indicative of movement of the oral treatment device relative to an interproximal gap between adjacent teeth in the oral cavity of the user. The controller is configured to control the oral treatment device to perform an action based on the determined movement parameter.
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公开(公告)号：US20230387838A1
公开(公告)日：2023-11-30
申请号：US18029635
申请日：2021-09-29
Applicant: Dyson Technology Limited
Inventor： George Francis Paul OAKHAM , Christopher John BATEMAN
CPC classification number: H02P6/157 , A47L9/2842 , A45D20/00
Abstract: A method of controlling a brushless permanent-magnet motor having a phase winding and a rotor includes monitoring a value indicative of back EMF induced in the phase winding during oscillation of the rotor about a parking position, and using amplitude peaks of the value indicative of back EMF to calculate a time window in which to apply a drive voltage to the phase winding. The method includes setting a timer corresponding to the time window at a subsequent determined amplitude peak and applying a drive voltage to the phase winding during the time window.
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公开(公告)号：US20250060297A1
公开(公告)日：2025-02-20
申请号：US18720037
申请日：2022-12-07
Applicant: Dyson Technology Limited
Inventor： David James GRAHAM , Michele BENETTI , Sanjeeb TRIPATHY , Christopher John BATEMAN , Alexander Michael KEMBER
IPC: G01N15/0205
Abstract: A self-mixing interferometer configured to monitor particulate material within a monitored region of space comprising a laser cavity assembly (1A) and an optical assembly (1B) configured to bathe the monitored region with laser light of the interferometer possessing wavefronts having different directions at different respective locations within the monitored region. A laser monitoring unit (1C) is configured to acquire an interferometric signal generated by the interferometer in response to light returned to the laser cavity assembly from said wavefronts by said particulate material. A processing module (1D) is configured to determine a property of the particulate material within the monitored region according to changes in the frequency of a waveform within at least a part of the interferometric signal.
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Patent Agency Ranking
公开(公告)号：US20250052663A1
公开(公告)日：2025-02-13
申请号：US18720049
申请日：2022-12-07
Applicant: Dyson Technology Limited
Inventor： David James GRAHAM , Michele BENETTI , Sanjeeb TRIPATHY , Christopher John BATEMAN , Alexander Michael KEMBER
IPC: G01N15/1429 , G01N15/1434
Abstract: A self-mixing interferometer configured to monitor particulate material within a monitored region of space comprising a laser cavity assembly (1A) and an optical assembly (1B) configured to bathe the monitored region with laser light of the interferometer. A laser monitoring unit (1C) is configured to acquire an interferometric signal generated by the interferometer in response to light returned to the laser cavity assembly from said wavefronts by said particulate material. A processing module (1D) is configured to determine a property of the particulate material within the monitored region according to a structure in data describing the interferometric signal in a frequency-space transformation thereof wherein at least a part of the interferometric signal comprises a waveform of changing frequency.
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公开(公告)号：US20250049191A1
公开(公告)日：2025-02-13
申请号：US18718454
申请日：2022-12-13
Applicant: Dyson Technology Limited
Inventor： Bartosz SLAK , Christopher John BATEMAN , Michele BENETTI
Abstract: A haircare appliance is provided for detecting a hair moisture content. The haircare appliance includes a processing element, at least one light emitting element emitting at least two wavelengths, and a sensor element, wherein the light emitting element is adapted to irradiate a portion of hair to be treated. The sensor element is adapted to receive a sensor reading from an acquisition region of the irradiated hair and generate a sensor signal dependent on the sensor reading, and includes a spectral sensor element. The processing element is adapted to determine a moisture content of at least the irradiated portion of the hair from the sensor signal.
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公开(公告)号：US20250067554A1
公开(公告)日：2025-02-27
申请号：US18720021
申请日：2022-12-07
Applicant: Dyson Technology Limited
Inventor： David James GRAHAM , Michele BENETTI , Sanjeeb TRIPATHY , Christopher John BATEMAN , Alexander Michael KEMBER
IPC: G01B9/02 , G01N15/00 , G01N15/0205 , G01N15/075
Abstract: A self-mixing interferometer configured to monitor particulate material within a monitored region of space comprising a laser cavity assembly (1A) and an optical assembly (1B) configured to bathe the monitored region with laser light of the interferometer. A laser monitoring unit (1C) is configured to acquire an interferometric signal generated by the interferometer in response to light returned to the laser cavity assembly from said wavefronts by said particulate material. A processing module (1D) is configured to determine a property of the particulate material within the monitored region according to a wavelet transformation of the interferometric signal at least a part of which comprises a waveform of changing frequency.
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公开(公告)号：US20170170758A1
公开(公告)日：2017-06-15
申请号：US15376304
申请日：2016-12-12
Applicant: Dyson Technology Limited
Inventor： Christopher John BATEMAN , Libo ZHENG
CPC classification number: H02P6/18 , G01R31/346 , H02P6/20 , H02P6/22 , H02P27/06
Abstract: A method of determining the parked position of a rotor of a permanent-magnet motor, including applying a first voltage to a phase winding of the motor, measuring a first parameter, removing the first voltage, waiting for current in the phase winding to decrease to zero, applying a second voltage having the opposite polarity, measuring a second parameter, comparing the first parameter and the second parameter, and determining that the rotor is in a first parked position if the first parameter is less than the second parameter, and that the rotor is in a second parked position if the first parameter is greater than the second parameter. The first parameter and the second parameter each correspond to one of (i) the time taken for current in the phase winding to exceed a threshold, and (ii) the magnitude of current in the phase winding at the end of a time interval.
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公开(公告)号：US20130234640A1
公开(公告)日：2013-09-12
申请号：US13786119
申请日：2013-03-05
Applicant: DYSON TECHNOLOGY LIMITED
Inventor： Christopher John BATEMAN , Barrie Charles MECROW
IPC: H02P6/18
Abstract: A method of controlling a brushless permanent-magnet motor. The method includes generating a first signal having a voltage that is proportional to a voltage across a winding of the motor, and generating a second signal having a voltage that is proportional to a current in the winding. The second signal is then differentiated to generate a third signal, and the voltages of the first signal and the third signal are compared. An output signal is generated in response to the comparison, the output signal having an edge whenever the voltages of the first signal and the third signal correspond. The winding is then commutated at times relative to the edges in the output signal. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
Abstract translation: 一种控制无刷永磁电动机的方法。 该方法包括产生具有与电动机的绕组两端的电压成比例的电压的第一信号，以及产生具有与绕组中的电流成比例的电压的第二信号。 然后对第二信号进行微分以产生第三信号，并且比较第一信号和第三信号的电压。 响应于比较产生输出信号，每当第一信号和第三信号的电压对应时，输出信号具有边沿。 绕组然后相对于输出信号中的边缘相交换。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
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