序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 Electromagnet US15302336 2015-03-31 US09697942B2 2017-07-04 Andreas Buhler
An electromagnet including a wire coil and a coil core, wherein the wire coil is accommodated on a coil body and includes a plurality of windings which surround the coil core and define a winding axis, wherein the coil body includes end pieces spaced apart along the winding axis and axially bounding the wire coil, which end pieces are connected to each other by at least two connecting webs extending along the winding axis and defining, together with a recess in at least one of the end pieces, an accommodating space for the coil core which is bounded by a rectangular envelope having at least one profile protruding inwards in a cross-sectional plane oriented perpendicular to the winding axis, and wherein the coil core has a recess which extends along the winding axis in at least some sections and which corresponds to the profile.
82 Laminating magnetic cores for on-chip magnetic devices US13969786 2013-08-19 US09691425B2 2017-06-27 Robert E. Fontana, Jr.; William J. Gallagher; Philipp Herget; Eugene J. O'Sullivan; Lubomyr T. Romankiw; Naigang Wang; Bucknell C. Webb
A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
83 METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET US15311026 2015-05-11 US20170081740A1 2017-03-23 Ryuichi SUEHIRO; Takashi TERASHIMA; Makoto WATANABE; Toshito TAKAMIYA
In a method for producing a grain-oriented electrical steel sheet by subjecting a slab containing C: 0.002-0.10 mass %, Si: 2.5-6.0 mass %, Mn: 0.01-0.8 mass % and further containing Al and N, or S and/or Se, or Al, N, S and/or Se as inhibitor ingredients to hot rolling, hot band annealing, cold rolling, decarburization annealing, application of an annealing separator and finish annealing, when a certain temperature within a range of 700-800° C. in a heating process of the decarburization annealing is T1 and a certain temperature as a soaking temperature within a range of 820-900° C. is T2, a heating rate R1 between 500° C. and T1 is set to not less than 80° C./s and a heating rate R2 between T1 and T2 is set to not more than 15° C./s, whereby a grain-oriented electrical steel sheet having excellent magnetic properties and peeling resistance of forsterite coating is obtained while ensuring decarburization property.
84 Wind-on core manufacturing method for split core configurations US13295199 2011-11-14 US09601257B2 2017-03-21 Frank P. Burke; Ryan M. Parrish
A method provides a portion of a transformer by forming a core by providing transformer core material, cutting individual laminations and bending them into generally C-shaped members, stacking some members to define a first core portion having a main leg and two opposing end legs, stacking other members to define a second core portion having a main leg and two opposing end legs, arranging the main legs in a back-to-back manner to define the core having a core leg defined by the two main legs, and opposing core yokes, defined by the end legs. Conductive material is wound directly around the core leg to form a primary winding and secondary winding in any order of arrangement, thus providing a first transformer portion. The transformer portion may be part of a single transformer or, when second and third transformer portions are provided, as part of a three-phase transformer.
85 Laminated core for a magnetic bearing having individual laminations with at least one physical interruption and method for constructing such a laminated core US14819958 2015-08-06 US09590470B2 2017-03-07 Hans Vande Sande; Cornelis Theodorus Philippi; Uwe Pahner; Bram Eugene G. Demeulenaere
The core inside a combined radial-axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut. These cuts prevent the inducement of circulating currents caused by varying axial control fluxes through the central hole of the stack. Magnetic symmetry is preserved by pivoting every lamination with respect to the previous one over a particular angle. This arrangement not only reduces the losses in the bearing, but improves the performance of the axial channel as well.
86 Laminating magnetic cores for on-chip magnetic devices US15149727 2016-05-09 US09564165B2 2017-02-07 Robert E. Fontana, Jr.; William J. Gallagher; Philipp Herget; Eugene J. O'Sullivan; Lubomyr T. Romankiw; Naigang Wang; Bucknell C. Webb
A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
87 Grain oriented electrical steel sheet and method for manufacturing the same US13805773 2011-06-28 US09514868B2 2016-12-06 Takeshi Omura; Hiroi Yamaguchi; Seiji Okabe
A grain oriented electrical steel sheet is subjected to magnetic domain refinement by laser irradiation or electron irradiation and exhibits excellent low noise properties and low iron-loss properties when assembled into a real transformer device, by setting: the total tension (A) in rolling direction imparted to the steel sheet by the forsterite coating and the tension coating to be equal to or higher than 10.0 MPa; setting the total tension (B) in a direction orthogonal to the rolling direction imparted to the steel sheet by the forsterite coating and the tension coating to be equal to or higher than 5.0 MPa; and setting the total tension (A) and the total tension (B) to satisfy a formula shown below. 1.0≦A/B≦5.0
88 METHOD OF PROTECTING LAMINATION STACKS OF A COMPONENT OF AN ELECTRIC MACHINE AND COMPONENT OBTAINED BY THE METHOD US15005273 2016-01-25 US20160226332A1 2016-08-04 Yvon BAUCÉ; Eduardo CARRASCO; Erwan SALAHUN
A method of protecting ferromagnetic lamination stacks of a component of an electric machine, comprises the following steps: creating a component module by arranging a laminations stack of ferromagnetic sheets into a housing, (b) protecting locations of the component module where coating is unwanted, (c) inserting the component module into a hermetic chamber receiving an ionized gas, (d) polarizing the component module to submit a fixed electric potential to the component module, (e) depositing a thin layer of protective coating on the laminations stack of ferromagnetic sheets through a method of Plasma Enhanced Chemical Vapor Deposition (PECVD) at a temperature lower than 150° C., (f) monitoring the deposition homogeneity and deposition thickness of the thin layer of protective coating until desired thickness, and (g) rectifying the surface of the thin layer of protective coating to have a uniform protective layer.
89 High acceleration actuator US14321164 2014-07-01 US09354422B1 2016-05-31 Timothy K. Quakenbush
Embodiments of the present disclosure include an actuator for steering mirrors with low magnetic hysteresis losses at high frequencies, with a fast step response, and without excessive heating of the steering mirror. Various embodiments of the actuator include two stators (a left stator and a right stator or an inner stator and an outer stator) and a rotor positioned between the stators. Each stator has a core assembly with one or more cores, two or more legs, and two or more faces positioned proximate to the rotor. The two or more legs are separated from one another by portions of the one or more coils. The rotor includes a core and a plurality of magnets, where each magnet has a face positioned proximate to the faces of one core assembly.
90 Stator for electronic fuel injector US14203980 2014-03-11 US09281114B2 2016-03-08 Randy Oberle
A stator assembly for a fuel valve comprising a magnetic E-core of stacked E-shaped laminations, a plastic bobbin proportioned to surround a central leg of the core, a magnetic wire coil on the bobbin, a non-magnetic metal plate having an O-shaped profile adjacent an end of the bobbin and distal ends of central and outer legs of the E-core, the core, bobbin, coil and plate encapsulated in a block, the block having a pair of vent channels overlying portions of the plate disposed between the outer core legs and the central core leg, the plate being proportioned to pre-stress the outer core legs outwardly prior to encapsulation whereby cyclic strain on the block due to hydraulic forces imposed by high pressure fuel pulses tending to spread the outer core legs is reduced and resistance of the block to cracking due to said fuel pressure pulses is increased.
91 MAGNETICALLY BIASED CHOKE US14771945 2014-05-02 US20160042855A1 2016-02-11 Christof GULDEN; Bruce CARSTEN; Stefan Herzog; Alexander STADLER
A magnetically biased choke includes a magnetic circuit with at least one stack consisting of a plurality of magnetically soft segments), of which at least some are disposed at a spacing from each other, and of a coil which is wound about the stack, at least two permanent magnet segments being inserted into the stack and at least one magnetically soft segment being disposed between the at least two permanent magnet segments.
92 LAMINATED CORE FOR A MAGNETIC BEARING HAVING INDIVIDUAL LAMINATIONS WITH AT LEAST ONE PHYSICAL INTERRUPTION AND METHOD FOR CONSTRUCTING SUCH A LAMINATED CORE US14819958 2015-08-06 US20160036294A1 2016-02-04 Hans VANDE SANDE; Cornelis Theodorus PHILIPPI; Uwe PAHNER; Bram Eugene G. DEMEULENAERE
The core inside a combined radial-axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut. These cuts prevent the inducement of circulating currents caused by varying axial control fluxes through the central hole of the stack. Magnetic symmetry is preserved by pivoting every lamination with respect to the previous one over a particular angle. This arrangement not only reduces the losses in the bearing, but improves the performance of the axial channel as well.
93 MAGNETIC SHEET FOR NON-CONTACT POWER RECEIVING DEVICE, NON-CONTACT POWER RECEIVING DEVICE, ELECTRONIC APPARATUS, AND NON-CONTACT CHARGER US14271780 2014-05-07 US20140239892A1 2014-08-28 Takao Sawa; Katsuhiko Yamada; Tadao Saito; Kiyoshi Nagasaki
A magnetic sheet of an embodiment includes a laminate of a plurality of magnetic thin plates. The laminate constituting the magnetic sheet includes a first magnetic thin plate and a second magnetic thin plate different in kind from the first magnetic thin plate. The first magnetic thin plate has a magnetostriction constant exceeding 5 ppm in an absolute value, and the second magnetic thin plate has a magnetostriction constant of 5 ppm or less in an absolute value. Alternatively, the first magnetic thin plate has a thickness of from 50 to 300 μm, and the second magnetic thin plate has a thickness of from 10 to 30 μm.
94 LAMINATING MAGNETIC CORES FOR ON-CHIP MAGNETIC DEVICES US13969786 2013-08-19 US20140216943A1 2014-08-07 Robert E. Fontana, JR.; William J. Gallagher; Philipp Herget; Eugene J. O'Sullivan; Lubomyr T. Romankiw; Naigang Wang; Bucknell C. Webb
A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
95 MAGNETIC COMPOSITE SHEET AND ELECTROMAGNETIC INDUCTION MODULE US13888964 2013-05-07 US20140176381A1 2014-06-26 Dong Hyeok CHOI; Jin Young KIM; Chang Ryul JUNG; Ji Man RYU; Sung Yong AN
There is provided a magnetic composite sheet including: a magnetic layer including first and second magnetic pieces having different sizes; and a cover film formed on one surface or both surfaces of the magnetic layer, wherein, in a cross-section of the magnetic composite sheet taken in a direction parallel to a direction in which the magnetic layer and the cover film are laminated, when a length of the first magnetic piece in a vertical direction is a and a length thereof in a horizontal direction is b, and a length of the second magnetic piece in the vertical direction is a′ and a length thereof in the horizontal direction is b′, b/a is greater than b′/a′(b/a>b′/a′).
96 HAPTIC ACTUATORS US13935655 2013-07-05 US20140009005A1 2014-01-09 James C. IRWIN
A haptic actuator (20(X)) provides compact mounting for a haptically-actuated assembly by mounting at least a portion of the haptically-actuated assembly to magnetic circuit members of the haptic actuator. The haptic actuator comprises a first magnetic member (62); a second magnetic member (60); a field generator (30); and a resilient connector (70). The first magnetic member (62) is configured to have a driven part (124) of the haptically-actuated assembly mounted to the first magnetic member (62). The second magnetic member (60) is selectively separated by at least one air gap from the first magnetic member (62) and is configured to have a stationary part of the haptically-actuated assembly (122) connected to the second magnetic member (62). The second magnetic member (60) is positioned at least partially within the field generator (30) and the first magnetic member (62) is positioned externally to the field generator (30). The resilient connector (70) is configured to connect together the first magnetic member (62) and the second magnetic member (60) in a manner to allow selective closing and opening of the at least one air gap upon selective activation and de-activation of the field generator (30).
97 LAMINATED LAYER STRUCTURE FOR PRODUCING AN INSULATION MATERIAL US13849741 2013-03-25 US20130214892A1 2013-08-22 Jörg NELGES
A layer structure for producing a planar insulation laminate, including the following sequence of planar individual layers arranged one on the other: a B-stage resin, a glass fabric, a core layer made of polyester film, a glass fabric, and a B-stage resin. In the hardened state, an insulation material produced therefrom is suitable, for example, to be used as an insulation barrier between a low-voltage winding and a high-voltage winding of a transformer winding.
98 GRAIN ORIENTED ELECTRICAL STEEL SHEET US13824660 2011-09-27 US20130177743A1 2013-07-11 Makoto Watanabe; Seiji Okabe; Toshito Takamiya
A grain oriented electrical steel sheet keeps iron loss at a low level when assembled as an actual transformer and has excellent iron loss properties as an actual transformer, in which a film thickness a1 (μm) of insulating coating at the floors of linear grooves, a film thickness a2 (μm) of the insulating coating on a surface of the steel sheet at portions other than the linear grooves, and a depth a3 (μm) of the linear grooves are controlled to satisfy formulas (1) and (2): 0.3 μm≦a2≦3.5 μm  (1), and a2+a3−a1≦15 μm  (2).
99 APPARATUS AND METHOD FOR REDUCING INDUCTOR SATURATION IN MAGNETIC FIELDS US13769443 2013-02-18 US20130152380A1 2013-06-20 Jeffrey E. Stahmann; Scott R. Stubbs; Arthur Foster
This document discusses, among other things, an inductive component that can include a core having two portions: (1) a first portion composed of a first material having a first magnetic saturation level; and (2) a second portion composed of a second material selected to provide inductance for the inductive component when an external magnetic field is greater than the first magnetic saturation level. In an example, the first portion can be composed of a material having a relatively low magnetic saturation level (e.g., a ferrite), and the second portion can be composed of a material having a relatively high magnetic saturation level (e.g., a high permeability iron alloy).
100 TRANSFORMER HAVING A STACKED CORE US13642266 2011-04-14 US20130147588A1 2013-06-13 Charlie Sarver; William E. Pauley, JR.
A transformer is provided having a stacked core with a pair of outer legs extending between a pair of yokes. The core is arranged in a plurality of layers. Each of the layers includes a pair of yoke plates and a pair of outer leg plates. In an inner-most layer, the width of each yoke plate is less than the width of each outer leg plate. In each of the layers, the inner points of the outer leg plates are substantially in contact with the yoke plates. The cross-section of the inner leg and the outer legs may be rectangular or cruciform.
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