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公开(公告)号：US20200166589A1
公开(公告)日：2020-05-28
申请号：US16692291
申请日：2019-11-22
申请人： WAYMO LL C
摘要： An integrated hybrid rotary assembly is configured to provide power, torque and bi-directional communication to a rotatable sensor, such as a lidar, radar or optical sensor. A common ferrite core is shared by a motor, rotary transformer and radio frequency communication link. This hybrid configuration reduces cost, simplifies the manufacturing process, and can improve system reliability by employing a minimum number of parts. The assembly can be integrated with the sensor unit, which may be used in vehicles and other systems.
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公开(公告)号：US10607771B2
公开(公告)日：2020-03-31
申请号：US15345117
申请日：2016-11-07
申请人： Analogic Corporation
发明人： John Dobbs
IPC分类号： H01F38/18 , H01F27/36 , H01F30/06 , A61B6/00 , A61B6/03 , H02J50/70 , H02J7/00 , H02J50/10 , H01F30/16
摘要： Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings, current(s) in half-shields, and the volume of space swept out by shield airgap(s) emerge from plane of paper perpendicularly at FIG. 5, but as these emerge therefrom, they curve to follow toroidal major circle(s). Core regions preferably shunt and align magnetic flux such that magnetic field lines escape therefrom primarily only in region(s) of core airgap(s) and such that magnetic flux loops lie in planes of toroidal minor circle(s). Half-shield(s) preferably have electrically conductive material(s) distributed therein as is sufficient to substantially cancel magnetic flux lines impinging thereon before effects of such impinging magnetic flux lines would reach shield airgap(s) and/or outer surface(s) of half-shields.
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公开(公告)号：US20190206617A1
公开(公告)日：2019-07-04
申请号：US16302557
申请日：2017-05-16
摘要： Aspects of the present disclosure are generally directed to using a rotary transformer to transfer power for a wind turbine generator. Certain aspects of the present disclosure are directed to a multi-rotor wind turbine. The multi-rotor wind turbine generally includes a plurality of rotors, a plurality of electrical generators, each coupled to one of the plurality of rotors, and one or more rotary transformers configured to transfer power between the electrical generators and a power grid. In some aspects, each rotary transformer comprises a first winding coupled to one or more electrical generators of the plurality of electrical generators, and a second winding magnetically coupled to the first winding and coupled to the power grid, wherein the first winding is rotatable with respect to the second winding.
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公开(公告)号：US20190039705A1
公开(公告)日：2019-02-07
申请号：US16075372
申请日：2017-02-03
申请人： ROLLS-ROYCE OY AB
发明人： Werner SCHIFFERS , Lars SAARINEN
摘要： A system for contactless power transmission in an azimuth thruster, the system comprising a first body (76) comprising at least one first inductor to provide a magnetic field, a second body (78) comprising at least one second inductor to generate an electrical current from the magnetic field, the bodies being configured to be relatively rotatable, the at least one first inductor and the at least one second inductor being configured to generate an electrical current from the magnetic field at all relative rotational positions, wherein the or each of the first inductors are tuned to resonate within a predetermined frequency band and the or each of the second inductors are tuned to resonate within a predetermined frequency band, the frequency band of the or each of the second inductors at least partially overlapping with the frequency band of the or each of the first inductors.
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公开(公告)号：US10090733B2
公开(公告)日：2018-10-02
申请号：US13808015
申请日：2011-06-29
申请人： Eric De Wergifosse , Cedric Duval
发明人： Eric De Wergifosse , Cedric Duval
摘要： An apparatus including a fixed part, a rotary support configured to be driven in rotation relative to the fixed part, at least one item of electrical equipment carried by the rotary support, and a power supply device configured to supply electrical energy to the electrical equipment. The power supply device includes an asynchronous machine including a stator fixed to the fixed part and a rotor carried by the rotary support, and an excitation device. The stator includes an electrical circuit including at least one switch configured to switch between an open state in which the electrical circuit is open and a closed state in which the electrical circuit is closed. The rotor includes at least one winding connected to the electrical equipment. The excitation device is configured to provide a reactive current to the electrical circuit of the stator or to the winding of the rotor.
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公开(公告)号：US10034361B2
公开(公告)日：2018-07-24
申请号：US15044002
申请日：2016-02-15
IPC分类号： H05G1/10 , H01F3/02 , H01F27/245 , H01F38/14 , H01F38/18
摘要： A line-frequency rotary transformer is provided, including a primary core and a secondary core. The primary core is magnetically couplable to the secondary core. The primary core includes a first plurality of E-core steel laminates arranged in a first ring couplable to a stator. The primary core includes a primary winding disposed within the first ring and configured to transmit line-frequency AC power. The secondary core includes a second plurality of E-core steel laminates arranged in a second ring couplable to a gantry. The gantry is rotatably couplable to the stator. The secondary core includes a secondary winding disposed within the second ring and is configured to receive a line-frequency AC power induced in the secondary winding through the primary core and the secondary core by the primary winding.
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公开(公告)号：US09748802B2
公开(公告)日：2017-08-29
申请号：US15070520
申请日：2016-03-15
发明人： Nils Krumme
IPC分类号： H01F38/14 , H02J50/10 , A61B6/00 , H01F38/18 , H04B5/00 , H02J5/00 , H02J17/00 , H02J50/70 , H05K9/00
CPC分类号： H02J50/10 , A61B6/4488 , A61B6/56 , H01F38/14 , H01F38/18 , H02J5/005 , H02J17/00 , H02J50/70 , H04B5/0012 , H04B5/0031 , H04B5/0037 , H05K9/00
摘要： A contactless rotary joint has a stationary and a rotating part. Furthermore at least one of the parts has a rotary joint body made of a plastic material and holding a capacitive data link and a rotating transformer. The rotating transformer has a magnetic core for transmission of electrical power. To prevent interference of the capacitive data link by electrical and/or magnetic fields from the rotating transformer a shield is provided.
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公开(公告)号：US20170215833A1
公开(公告)日：2017-08-03
申请号：US15480025
申请日：2017-04-05
发明人： Nils Krumme
CPC分类号： A61B6/56 , A61B6/032 , A61B6/035 , H01F38/18 , H05K9/0081
摘要： A CT scanner with a device configured to improve the electromagnetic properties and/or the shielding of the rotation transmission devices in the CT scanner. A corresponding method for improving the electromagnetic properties and/or the shielding, of the rotation transmission devices inserted in the CT scanner.
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公开(公告)号：US20170179728A1
公开(公告)日：2017-06-22
申请号：US14971490
申请日：2015-12-16
申请人： Keqin Jiang , Edward Tao Gao , Zheng Chen
发明人： Keqin Jiang , Edward Tao Gao , Zheng Chen
摘要： An electromagnetic induction apparatus for power transfer may include a first portion and a second portion. The first portion has at least one loop of central coil is winded on the central magnetic core, and the second portion has at least one loop of toroidal core winded on the toroidal magnetic core. When the first portion is inserted into the second portion, the toroidal coil is located around an outside periphery of the central coil. Since the central coil and the toroidal coil are mutual inductance on the same magnetic core, the electromagnetic induction efficiency is improved, leading to enhancing more than 50% of the power transmitted rate.
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20.发明授权公开(公告)号：US09583260B2
公开(公告)日：2017-02-28
申请号：US14339185
申请日：2014-07-23
申请人： Goodrich Corporation
发明人： Eric Stein , Perry Leaves
CPC分类号： H01F38/18 , B60C23/00 , F01D17/105 , F02C6/08 , F04D27/0215 , F04D27/023 , F05D2260/963 , H01F27/02 , H01F38/14 , H02J50/12 , H02J50/80 , H04B5/0037 , H04B5/0093
摘要： Described herein is a system and method to enable a wireless power transmission link system. The wireless power transmission link system may comprise an axle and an optional telemetry unit interior to the axle. The wireless power transmission link system may comprise a first cup located interior to the telemetry unit and/or the axle. The first cup may comprise a first channel for housing a first wound coil. The wireless power transmission link system may comprise a second cup separated by an air gap from the first cup. The second cup may comprise a second channel for housing a second wound coil. The first wound coil and the second wound coil may form a portion of an inductively coupled, resonant, air-core transformer. The first cup and/or the second cup may comprise ferromagnetic material properties.
摘要翻译： 这里描述了一种能够实现无线电力传输链路系统的系统和方法。 无线电力传输链路系统可以包括轴和车轴内部的可选的遥测单元。 无线电力传输链路系统可以包括位于遥测单元和/或轴的内部的第一杯。 第一杯可以包括用于容纳第一缠绕线圈的第一通道。 无线电力传输链路系统可以包括由与第一杯的气隙隔开的第二杯。 第二杯可以包括用于容纳第二缠绕线圈的第二通道。 第一缠绕线圈和第二缠绕线圈可以形成电感耦合谐振的空心变压器的一部分。 第一杯和/或第二杯可以包括铁磁材料性质。
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