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Patent Agency Ranking
公开(公告)号：US20240421745A1
公开(公告)日：2024-12-19
申请号：US18701442
申请日：2022-10-17
Applicant: Dyson Technology Limited
IPC: H02P29/50
Abstract: An electric motor is provided that includes a rotor, a stator, and a filter. The stator includes a stator core and windings. The filter is a magnetic low-pass filter including a coil having one or more turns and one or more capacitors connected in series with the coil. Excitation of the windings generates stator flux, the coil is linked to the stator flux, and the filter attenuates harmonics in the stator flux.
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公开(公告)号：US20250134227A1
公开(公告)日：2025-05-01
申请号：US18689486
申请日：2022-09-07
Applicant: Dyson Technology Limited
Inventor： Daniel James Bernard SMITH , Barrie Charles MECROW , Mark TURNER
Abstract: A hair styling device for heating hair is provided. The device comprises an induction heating plate arranged to be heated by penetration with a varying magnetic field and an induction heating assembly configured to generate the varying magnetic field.
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公开(公告)号：US20240430993A1
公开(公告)日：2024-12-26
申请号：US18690410
申请日：2022-09-07
Applicant: Dyson Technology Limited
Inventor： Daniel James Bernard SMITH , Barrie Charles MECROW , Mark TURNER
Abstract: A heating system is provided. The heating system comprises an induction heating assembly configured to generate varying magnetic fields, a heating target assembly comprising a plurality of heating targets, the plurality of heating targets being heatable by penetration with a varying magnetic field. A first subset of the plurality of heating targets has a first resonant heating characteristic and a second subset of the plurality of heating targets has a second resonant heating characteristic, and the first and second resonant heating characteristics are different. The system further comprises a controller configured to: control the induction heating assembly based on the first resonant heating characteristic to generate a first varying magnetic field to heat the first subset and control the induction heating assembly based on the second resonant heating characteristic to generate a second varying magnetic field to heat the second subset.
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公开(公告)号：US20250142680A1
公开(公告)日：2025-05-01
申请号：US18689490
申请日：2022-09-07
Applicant: Dyson Technology Limited
Inventor： Daniel James Bernard SMITH , Barrie Charles MECROW , Mark TURNER
Abstract: A heating system is provided. The heating system comprises an induction heating assembly configured to generate a varying magnetic field and a heating target assembly comprising one or more heating targets, wherein the one or more heating targets are moveable relative to the induction heating assembly, the one or more heating targets being heatable by penetration with the varying magnetic field.
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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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