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公开(公告)号：US11810705B2
公开(公告)日：2023-11-07
申请号：US17952870
申请日：2022-09-26
申请人： Hubbell Incorporated
CPC分类号： H01F21/04 , H01F27/24 , H01F27/28 , H03H7/0115 , H03H2210/026
摘要： An adjustable inductor including a core defining a plurality of gaps, a material positioned in the gaps, at least one winding wound on the core, a force-applying structure, and a film substantially covering the adjustable inductor. The force-applying structure is operable to apply a force to the core to adjust the gaps and thereby an inductance of the adjustable inductor. The film is configured to prevent movement of force-applying structure when below a predetermined temperature threshold, and allow movement of the force-applying structure when above the predetermined threshold.
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公开(公告)号：US11715587B2
公开(公告)日：2023-08-01
申请号：US16422005
申请日：2019-05-24
CPC分类号： H01F21/04 , G01D5/2291 , H01F27/02 , H01F27/28 , H01F41/02
摘要： A rotary variable differential transformer for measuring angular displacement and method of manufacturing the same are provided herein. The rotary variable differential transformer includes a stator configured to house a primary coil configured to receive an alternating current, a first secondary coil electromagnetically coupled to the primary coil, and a second secondary coil electromagnetically coupled to the primary coil. The rotary variable differential transformer also includes a rotor positioned concentrically within the stator. The rotor is configured to receive a shaft and rotate with the shaft while the stator remains stationary. The primary coil is positioned at a first radial position within the stator spaced between about 90 to 150 degrees from each of the first secondary coil and the second secondary coil.
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公开(公告)号：US10998116B2
公开(公告)日：2021-05-04
申请号：US15903611
申请日：2018-02-23
摘要： An example actuator assembly includes an actuator configured to move a rod. A variable differential transformer (VDT) is situated adjacent to the actuator. The VDT includes a core coupled to the rod such that movement of the rod causes a corresponding movement of the core. A plurality of windings surround the core for measuring displacement of the core. A shield surrounds the plurality of windings and shields the plurality of windings from a magnetic field of the actuator. The shield having a maximum permeability of 50,000-500,000. A LVDT configuration method is also disclosed.
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公开(公告)号：US10388462B2
公开(公告)日：2019-08-20
申请号：US15204247
申请日：2016-07-07
申请人： Michael J. Dueweke
发明人： Michael J. Dueweke
摘要： A tunable reactance device and methods of manufacturing and using the same are disclosed. The tunable reactance device includes a substrate, a microelectromechanical (MEM) structure supported on the substrate and comprising a conductive material, and a driver configured to move the MEM structure with respect to the substrate upon application of an electrostatic force to the driver. A gap between the MEM structure and the substrate is maintained when the driver moves the MEM structure. The tunable reactance device has (i) a first reactance and a first electromagnetic field topology when the electrostatic force is applied to the driver and (ii) a different reactance and a different electromagnetic field topology when a different electrostatic force is applied to the driver.
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公开(公告)号：US09490063B2
公开(公告)日：2016-11-08
申请号：US13719935
申请日：2012-12-19
申请人： Analogic Corporation
发明人： John Dobbs
CPC分类号： H01F27/367 , A61B6/032 , A61B6/56 , H01F30/06 , H01F30/16 , H01F38/18 , H02J7/0042 , H02J50/10 , H02J50/70
摘要： Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings 110, 160 preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings 110, 160; current(s) in half-shields 120, 170; and the volume of space swept out by shield airgap(s) 101 emerge from plane of paper perpendicularly at FIG. 5 but as these emerge therefrom they curve to follow toroidal major circle(s). Cores 115, 165 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) 120, 170 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) 101 and/or outer surface(s) of half-shields 120, 170.
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6.发明授权Methods and configurations of LC combined transformers and effective utilizations of cores therein 有权LC组合变压器的方法和配置以及其中的芯的有效利用公开(公告)号：US09257225B2
公开(公告)日：2016-02-09
申请号：US12166322
申请日：2008-07-02
申请人： Chun Li , Jason (Jian Hao) Li , Ran Ran Li
发明人： Chun Li , Jason (Jian Hao) Li , Ran Ran Li
CPC分类号： H01F27/385 , H01F3/12 , H01F38/16
摘要： The LC combined transformer is a combination of capacitors, inductors and an electrically-isolated mutual inductor, i.e. conventional transformer; which in principle is a unity-coupled mutual capacitor or a cascade connection of an ideal transformer and unity-coupled mutual capacitor(s). To improve the imperfections of widely-used transformers, by employing the simplest passive-circuit design to attain a perfectly-functional match between mutual capacitors and the mutual inductor, this invention achieves optimal features of current or/and voltage transformation, and introduces a new function of waveform conversion from square to quasi-sine. The ideal current transformer herein is suitable for sinusoidal current measurements, the ideal voltage transformer herein suitable for sinusoidal voltage measurements, and they also could be upgraded to ideal transformers for both current and voltage transformations. This transformer can be designed as power transferable as well as waveform convertible, applicable in power systems or power electronics. Herein also states the design approach of integrated inductor and mutual inductor, and the use of push-pull inductor, materials being fully utilized and sizes decreased.
摘要翻译： LC组合变压器是电容器，电感器和电隔离互感器的组合，即常规变压器; 其原理上是单相耦合互电容器或理想变压器和单相耦合互电容器的级联连接。 为了改善广泛使用的变压器的缺陷，通过采用最简单的无源电路设计，实现互电容和互感器之间的完美功能匹配，本发明实现了电流或/和电压转换的最佳特性，并引入了新的 从正方形到准正弦的波形转换功能。 本文中理想的电流互感器适用于正弦电流测量，本文中的理想电压互感器适用于正弦电压测量，并且还可升级为用于电流和电压转换的理想变压器。 该变压器可以设计为可转换的以及波形转换，适用于电力系统或电力电子设备。 这里还介绍了集成电感和互感器的设计方法，以及推挽式电感器的使用，充分利用材料和尺寸减小。
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公开(公告)号：US08988178B2
公开(公告)日：2015-03-24
申请号：US13700127
申请日：2011-07-01
IPC分类号： H01F21/04 , H01F21/02 , H01F27/28 , H01F27/24 , E21B17/02 , E21B47/01 , E21B47/12 , H01F38/14
CPC分类号： E21B17/023 , E21B17/028 , E21B47/011 , E21B47/122 , H01F38/14
摘要： An inductive coupler assembly for use in a downhole environment and related methods are described. An example indicative coupler assembly includes a first inductive coupler having first and second magnetically coupled coils and a second inductive coupler having third and fourth magnetically coupled coils. The first and third coils are coupled to a first pair of signal lines and the second and fourth coils are coupled to a second pair of signal lines. The first inductive coupler is to magnetically convey a differential communications signal between the first and second pairs of signal lines, and the second inductive coupler is to magnetically convey a common mode power signal between the first and second pairs of signal lines.
摘要翻译： 描述了一种用于井下环境的感应耦合器组件及相关方法。 示例性耦合器组件的示例包括具有第一和第二磁耦合线圈的第一电感耦合器和具有第三和第四磁耦合线圈的第二电感耦合器。 第一和第三线圈耦合到第一对信号线，并且第二和第四线圈耦合到第二对信号线。 第一电感耦合器是在第一和第二对信号线之间磁传递差分通信信号，并且第二电感耦合器将在第一和第二对信号线之间磁性传送共模功率信号。
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8.发明授权Electrical assembly for use with a rotary transformer and method for making the same 有权用于旋转变压器的电气组件及其制造方法公开(公告)号：US08405480B2
公开(公告)日：2013-03-26
申请号：US12963822
申请日：2010-12-09
CPC分类号： H01F38/18 , H01F27/263 , Y10T29/4902
摘要： An electrical assembly is provided. The electrical assembly includes a ring having at least two annular segments. Each annular segment includes a first portion and a second portion. The second portion tapers from the first portion toward an end of the second portion to define a circumferential cross-sectional area of the ring that is substantially constant along a radius of the electrical assembly. At least one winding is coupled about the ring.
摘要翻译： 提供电气组件。 电气组件包括具有至少两个环形段的环。 每个环形段包括第一部分和第二部分。 第二部分从第一部分朝向第二部分的端部逐渐变细，以限定沿电气组件的半径基本恒定的环的圆周横截面积。 至少一个绕组围绕环耦合。
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公开(公告)号：US20120313741A1
公开(公告)日：2012-12-13
申请号：US13157279
申请日：2011-06-09
申请人： David R. Hall , Scott Dahlgren , Jonathan Marshall
发明人： David R. Hall , Scott Dahlgren , Jonathan Marshall
IPC分类号： H01F21/04
CPC分类号： E21B17/028 , H01F38/14
摘要： In one aspect of the present invention, an inductive coupling comprises an inner and outer casing. The inner casing comprises an inner trough formed into an exterior surface with an inner electrical conductor disposed within the inner trough. The outer casing comprises an outer trough formed into the interior surface with an outer electrical conductor disposed within the outer trough. The outer casing is configured to encircle the inner casing such that the inner electrical conductor is in magnetic communication with the outer electrical conductor. A helical geometry is formed in at least one of the inner or outer troughs. The inner and outer casings are configured to move relative to each other.
摘要翻译： 在本发明的一个方面，电感耦合器包括内外壳。 内壳包括形成为外表面的内槽，其内部电导体设置在内槽内。 外壳包括形成在内表面中的外槽，其中设置在外槽内的外电导体。 外壳被构造为环绕内壳，使得内部电导体与外部电导体磁连通。 在内槽或外槽中的至少一个中形成螺旋形几何形状。 内壳体和外壳体构造成相对于彼此移动。
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公开(公告)号：US08130066B2
公开(公告)日：2012-03-06
申请号：US12887722
申请日：2010-09-22
申请人： Gregory M. Dunlap , Kai Chi Chan
发明人： Gregory M. Dunlap , Kai Chi Chan
CPC分类号： H01F38/18 , H01F27/325 , Y10T29/49009 , Y10T29/49071
摘要： Wire-holders are provided that confine a single wire over a limited arc section and that are interspersed with ferrite ingots that provide wire-ways for several wires are utilized in the winding of the coils of a transformer. A method for consistently producing windings having accurate wire placement on rotors, stators, and other electrical componentry is also provided.
摘要翻译： 提供了线夹，其将单线限制在有限的弧形部分上，并且散布有铁氧体锭，其提供用于变压器线圈的绕组中的多根线的线路。 还提供了一种用于一贯地生产具有在转子，定子和其他电气部件上的精确导线放置的绕组的方法。
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