序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 Magnetic flux return path with collated bands of wire US12285249 2008-09-30 US20090094819A1 2009-04-16 Willy Marrecau; Joelle Stockemer
Method of forming a magnetic core or part of a magnetic core including several layers of windings of magnetic wire in a very compact configuration, and the core or part of core is formed by winding several layers of a collated band of wires side by side until desired number of layers of core or part of core is obtained. Method includes forming magnetic core or magnetic flux return path or part of magnetic core including several layers of windings of magnetic wire in compact configuration; core or part of core being formed by winding several layers of a collated band of wires side by side until reaching desired number of layers of the core or part of the core. Magnetic core or magnetic flux return path includes several layers of windings of magnetic wire in compact configuration; part of layers of windings being formed by collated band of wires.
22 Inductive devices having a wire core with wires of different shapes and methods of making the same US10470008 2002-01-23 US06891459B1 2005-05-10 Harrie R. Buswell
An inductive device (10) having a magnetic core (16), which includes a portion of a plurality of wires (17), and at least one electric winding (18) extending around the magnetic core, wherein each of the plurality of wires substantially encircles the at least one electric winding, and wherein the plurality of wires include wires having different cross-sectional shapes to increase the density of the magnetic core.
23 Toroidal inductive devices and methods of making the same US10470003 2003-07-23 US20040066267A1 2004-04-08 Harrie R. Buswell
An inductive device comprises an electric winding component having a generally toroidal shape, and a plurality of discrete magnetic components at least partially embracing the electric winding component so as to complete a magnetic flux path and to form at least one gap between end portions of the plurality of discrete magnetic components.
24 Wire core inductive devices having a biassing magnet and methods of making the same US10470004 2003-07-23 US20040051617A1 2004-03-18 Harrie R. Buswell
An inductive device comprises a magnetic core including a portion of a plurality of wires, at least one electric winding extending around the magnetic core, each of the plurality of wires substantially encircling the at least one electric winding, and at least one biassing magnet disposed adjacent the plurality of wires to provide a bias magnet flux for offsetting a flux generated by a direct current component flowing in the winding.
25 Wire core inductive devices US09953940 2001-09-18 US06583698B2 2003-06-24 Harrie R. Buswell
The magnetic core of an inductive device is formed of a plurality of wires that extend through the inductive device, and beyond the electric winding. The ends of the wires are formed around the electric winding, meet, and are connected together enveloping the magnetic core and windings forming a complete magnetic circuit. The inductive device may be a transformer with two or more windings, a choke coil with only one winding, or other inductive device. The electric windings may be wound directly onto the wire magnetic core, or may be formed separately and then placed on the magnetic core. A mounting post or the like may be bound into the core and used as a mount for the inductive device; and, cooling tubes and/or large rods for support may be incorporated into the core.
26 Wire core inductive devices US09953940 2001-09-18 US20020008604A1 2002-01-24 Harrie R. Buswell
The magnetic core of an inductive device is formed of a plurality of wires that extend through the inductive device, and beyond the electric winding. The ends of the wires are formed around the electric winding, meet, and are connected together enveloping the magnetic core and windings forming a complete magnetic circuit. The inductive device may be a transformer with two or more windings, a choke coil with only one winding, or other inductive device. The electric windings may be wound directly onto the wire magnetic core, or may be formed separately and then placed on the magnetic core. A mounting post or the like may be bound into the core and used as a mount for the inductive device; and, cooling tubes and/or large rods for support may be incorporated into the core.
27 Wire core for induction coils US09203105 1998-11-30 US06239681B1 2001-05-29 Harrie R. Buswell
The core for an induction coil is formed of a plurality of parallel wires that extend through the induction coil, and beyond the coil. The ends of the wires are formed around the induction coil, and the ends of the wires meet and are connected to form a complete magnetic circuit. The induction coil may be a transformer with two or more windings, or a choke coil with only one winding, or other induction coil. The electric winding may be wound directly onto the wire core, or may be formed separately and then placed on the core. A stud or the like may be bound into the core and used as a mount for the induction coil; and, cooling tubes and large rods for support may be incorporated into the core.
28 Toroidal transformer with magnetic shunt US34310 1993-03-22 US5400005A 1995-03-21 Howard H. Bobry
A transformer or inductor is made by wrapping a magnetic core material about a toroid-like structure made up of one or more electrical windings. A ferroresonant transformer may be constructed by including a slotted washer between primary and secondary windings. By shorting one of the windings, the ferroresonant transformer can be made into a gapped inductor with the gap totally enclosed within the core.
29 Electric motor having a low loss magnetic flux return path US859589 1992-03-30 US5243248A 1993-09-07 Susan M. Benford, deceased; by Daniel J. Shramo, executor
The invention is directed to an electric motor construction having a magnetic flux return path which exhibits very low losses due to eddy currents or hysteresis, and simplifies construction thereof. In the motor construction, the magnetic flux return path is constructed from discrete magnetic material wire which is wrapped or otherwise formed in the desired return path configuration. The magnetic material wire is wound in a direction which generally crosses the flow of magnetic flux and yet is substantially tolerant of cross-winding fields. In this way, the flux return path provides easy construction in that coil winding techniques may be used, and the winding direction is less critical as it can cross the flow of flux therein. The flux return path greatly reduces eddy current losses as the cross section of the path to eddy current flow is the cross section of discrete wires, and because the discrete wires are formed with high packing fraction which will minimize skin effects especially at high frequencies.
30 Cored magnet with lightweight large area pole pieces US578510 1984-02-09 US4553122A 1985-11-12 Ian R. Young
A magnet pole piece for an NMR imaging magnet is made of a plurality of magnetic wires (3) with one end of each wire held in a non-magnetic spacer (1), the other ends of the wires being brought to a pinch (5), and connected to a magnetic core (6). The wires are embedded in a synthetic resin (4) and the magnetization and uniformity thereof can be varied by adjusting the density of the wires at the spacer which forms the pole piece.
31 Method and means for making cores for transformers or the like US33925640 1940-06-07 US2288855A 1942-07-07 STEINMAYER ALWIN G; KRUEGER WILLIAM E
32 Transformer for amplifier devices US63970123 1923-05-17 US1702072A 1929-02-12 FERNAND CARBENAY
33 APPARATUS FOR ALIGNING MAGNETIC WIRE AND METHOD FOR ALIGNING THE SAME US15674171 2017-08-10 US20190051456A1 2019-02-14 Katsuhiko NISHIHATA
Apparatus for aligning magnetic wire aligns magnetic wires on a wire alignment substrate along its base lines, which are positions the magnetic wires are aligned with, with a small interval and without inducing torsional stresses. A microscope is used to detect misplacement between the base line and a reference line that is the magnetic wire taking a form of a straight line under application of tensile force and pulled out by a wire chuck. The misplacement is corrected using a position adjustment device of a substrate attaching base to which the wire alignment substrate is attached. The magnetic wires are temporarily fixed to the wire alignment substrate by magnetic power, and then permanently fixed to the wire alignment substrate using resin while free from the torsional stresses.
34 Flexible soft magnetic core, antenna with flexible soft magnetic core and method for producing a flexible soft magnetic core US15509055 2015-07-24 US20170263358A1 2017-09-14 Francisco Ezequiel NAVARRO PEREZ; Antonio ROJAS CUEVAS
The flexible soft magnetic core (1) includes parallel continuous ferromagnetic wires (4) embedded in a core body (2) made of the polymeric medium (3). The continuous ferromagnetic wires (4) extend from one end to another end of said core body (2), are spaced apart from each other and are electrically isolated from each other by the polymeric medium (3). The method for producing the flexible soft magnetic core (1) comprises embedding continuous ferromagnetic wires (4) into an uncured polymeric medium (3) by means of a continuous extrusion process, curing the polymeric medium (3) with the continuous ferromagnetic wires (4) embedded therein to form a continuous core precursor (10), and cutting said continuous core precursor (10) into discrete magnetic cores (1).
35 Magnetic Wire Alignment Feeding Machine and Magnetic Alignment Feeding Method US15148641 2016-05-06 US20160329150A1 2016-11-10 Yoshinobu HONKURA
The present invention provides a magnetic wire alignment machine and its method to produce magnetic wire alignment on the substrate at the fine interval without twist stress. The magnetic wires can be allied along the groove on the substrate with the accuracy of ±1 μm by the very small interval by means of a precision feeding device which can adjust the parallel displacement between the wire as a basic line and the grove observed by a microscope. The magnetic wires cut under uniform tension are temporally fixed on the grooves on the substrate by the magnetic force and cured by the resin without twist stress.
36 IGNITION COIL US12825680 2010-06-29 US20110000472A1 2011-01-06 Albert Anthony Skinner; Harry Oliver Levers, JR.; Mark Albert Paul; Colin Hamer; Hector J. Herrera
An ignition apparatus includes a core, primary and secondary windings and a loop-shaped magnetic return path structure. The structure includes layers of wound strip steel or wound ferritic wire stacked in an outward fashion. The core is placed in an interior of the loop forming at least one air gap between a core end surfaces and the structure. A combined core and magnetic return path structure includes a continuous loop formed by winding ferritic wire either on a spool or on a mandrel and is then bonded. The bonded winding is cut to form two C-shaped portions. Each C-shaped portion has a central yoke that extends into a pair of parallel legs. The C-shaped portions are re-assembled over primary and second windings so that the legs form a pair of parallel branches. One branch acts as the core and the other branch acts as the magnetic return path.
37 Toroidal inductive devices and methods of making the same US11429219 2006-05-08 US20060202790A1 2006-09-14 Harrie Buswell
An inductive device comprises an electric winding component having a generally toroidal shape, and a plurality of discrete magnetic components at least partially embracing the electric winding component so as to complete a magnetic flux path and to form at least one gap between end portions of the plurality of discrete magnetic components.
38 Ignition wire having low resistance and high inductance US11295957 2005-12-07 US20060119460A1 2006-06-08 Phillip Farmer
An ignition wire having low resistance and high inductance includes a ferrite core, a coiled wire surrounding the core, and an insulating sheath, where the high voltage ignition wire exhibits a resistance of 130-210 Ohms/ft and an inductance of 44-104 μH. The coiled wire may have a diameter of 0.07-0.11 mm, 110-180 turns/in. and comprises a CuNi-based alloy. The coiled wire is preferably made of a CuNi-based alloy having, by weight, 80-95% Cu and 5-20% Ni. The ferrite core may include a core stranding which includes a ferrite core coating. The ferrite core coating may include, by weight, about 5.0-8.4% carbon, 31.7-37.8 oxygen, 1.5-1.7% copper, 0.6-0.8% aluminum, 0.1-0.2% sulfer, 7.0-11.6% zinc, 2.4-3.3 nickel and the balance iron and minor amounts of impurities.
39 Electronic device provided with a magnetic screening US10528177 2004-07-06 US20060049909A1 2006-03-09 Anne Adenot-Engelvin; Olivier Reynet; Olivier Acher
An electronic device furnished with magnetic screening having a peak of resonant magnetic losses. The screening includes at least one inductive winding constituted by at least one segment of metallic wire wound around at least one assembly of magnetic filaments.
40 Wire core inductive devices having a flux coupling structure and methods of making the same US10470005 2002-01-23 US06954129B2 2005-10-11 Harrie R. Buswell
An inductive device (10) comprises a magnetic core (16) including a portion of a plurality of wires (18), an electric winding (20) extending around said magnetic core, with one or more of the plurality of wires (18) at least partially encircling the electric winding (20) and having first and second end portions (26) arranged so as to form a gap (24) therebetween, and a flux coupling structure (28) disposed in a vicinity of the gap (24) so as to enhance coupling of magnetic flux between the first and second end portions (26).
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