公开(公告)号：US20220093324A1

公开(公告)日：2022-03-24

申请号：US17425565

申请日：2020-02-14

申请人： TDK Electronics AG

发明人： Stephan Bühlmaier ,  Felipe Jerez Galdeano ,  Joachim Nassal ,  Anneliese Drespling ,  Gerhard Proks ,  Herbert Lux

IPC分类号： H01F27/29 ,  H01F27/28 ,  H01F41/064 ,  H01F41/076 ,  H01F27/02 ,  H01F41/00

摘要： In an embodiment a coil includes a tube comprising a tube wall composed of an electrically conductive material, wherein the tube wall has an inductive portion in which a gap is arranged that shapes the tube wall so the tube wall forms a helix in the inductive portion, and wherein the tube wall has two contact portions, each contact portion forming an electrical terminal.

公开(公告)号：US20210020351A1

公开(公告)日：2021-01-21

申请号：US16924687

申请日：2020-07-09

申请人： SUMIDA CORPORATION

发明人： Akira TAKEUCHI

IPC分类号： H01F27/26 ,  H01F27/28 ,  H01F41/02 ,  H01F41/064

摘要： A pair of iron-based E-shaped cores 101A and 101B is disposed so that middle leg core parts 101A3 and 101B3 abut against each other, and coils 103A and 103B are respectively attached to the middle leg core parts 101A3 and 101B3 in a winding state. Furthermore, when a cross-sectional area of the middle leg core part 101A3 or 101B3 orthogonal to an extending direction thereof is Si, and a cross-sectional area of an outer leg core part 101A1, 101B1, 101A2, or 101B2 orthogonal to an extending direction thereof is So, a conditional expression (1) below holds. 1.0≤Si/So≤5.0  (1)

公开(公告)号：US10811188B2

公开(公告)日：2020-10-20

申请号：US15865291

申请日：2018-01-09

申请人： Shenzhen Sunlord Electronics Co., Ltd.

发明人： Shengcheng Xia ,  Youyun Li

IPC分类号： H01F41/076 ,  H01B13/06 ,  H01F41/064 ,  H01F41/02 ,  C03C14/00 ,  H01F41/12 ,  H01B3/08 ,  H01F27/255 ,  B05D3/02 ,  B05D3/12 ,  C03C8/16 ,  H01B7/02 ,  H01F27/28 ,  H01F27/29 ,  H01F41/06

摘要： A preparation method for a metal matrix composite wire includes the following steps: 1) preparing a metal inner core; 2) preparing a glass-resin mixture; 3) dissolving self-adhesive resin in a solvent to prepare a self-adhesive resin solution; 4) uniformly coating the glass-resin mixture on a surface of the metal inner core, then coating the self-adhesive resin solution on a surface of the glass-resin mixture, and performing drying at a temperature of 80° C. to 150° C.; and 5) repeating the step 4) until a thickness of the glass-resin mixture plus the self-adhesive resin reaches 2 to 10 μm. When an inductor is prepared by using the composite wire, the inductor may have relatively good weather resistance, a relatively good dielectric voltage-withstand capability, as well as relatively good high-temperature resistance and electrical performance.

公开(公告)号：US20200098515A1

公开(公告)日：2020-03-26

申请号：US16698609

申请日：2019-11-27

申请人： SUMIDA CORPORATION

发明人： Shinichi SAKAMOTO ,  Douglas James MALCOLM

IPC分类号： H01F41/064 ,  H01F17/04 ,  H01F27/29 ,  H01F27/255 ,  H01F41/02 ,  H01F27/02 ,  H01F27/24 ,  H01F27/28

摘要： A method for manufacturing an electronic component is provided. The method includes: placing an air-core coil in a mold; placing a mixture of a metal magnetic material and a thermosetting resin into the mold so as to embed the air-core coil in the mixture; after placing the mixture, applying a pressure to the placed mixture so that a shape of the placed mixture conforms to the air-core coil and the mold; and after applying the pressure, heating the mixture at a predetermined temperature for a predetermined time so that the placed mixture is hardened, wherein a viscosity of the mixture is 1,000 to 1,000,000 mPa·s at room temperature.

公开(公告)号：US10345907B2

公开(公告)日：2019-07-09

申请号：US15814626

申请日：2017-11-16

申请人： Apple Inc.

发明人： Arman Hajati ,  Kayo Yanagisawa

IPC分类号： H01F7/16 ,  H02N2/02 ,  H01F41/064 ,  G06F3/01

摘要： A haptic actuator may include a housing, coils carried within the housing, and a field member moveable within the housing between the coils and including at least one permanent magnet. A controller may be coupled to the coils and configured to sense a respective back electromotive force (EMF) value of each of the coils and determine a position of the field member in dimensions based upon the back EMF values and motor constant values.

公开(公告)号：US20190172628A1

公开(公告)日：2019-06-06

申请号：US16175575

申请日：2018-10-30

申请人： Murata Manufacturing Co., Ltd.

发明人： Yuichi OHBA

IPC分类号： H01F27/28 ,  H03H7/42 ,  H01F27/24 ,  H01F27/29 ,  H01F41/02 ,  H01F41/064 ,  H01F41/10

摘要： A balun includes a core having a plurality of through holes and a plurality of conductors wound around a portion between two through holes in the core and constituting first and second coils. The conductors include parallel lines in which a first conductor, a second conductor, and a third conductor are arranged in substantially parallel in this order and are integrated so as to include planar sections. The first and second coils include a continuous portion of first, second, and third winding portions. The first winding portion is formed of the wound second conductor. The second winding portion is formed of the parallel lines wound such that the planar sections cover the first winding portion. The third winding portion is formed of the second conductor wound on the second winding portion. The first coil includes a center tap connected to end portions of the first and third conductors.

公开(公告)号：US10192681B2

公开(公告)日：2019-01-29

申请号：US15466215

申请日：2017-03-22

申请人： Gedex Systems Inc.

发明人： Andrew Hugill ,  Ilia Tomski ,  Glen B. Sincarsin ,  Igor Terefenko ,  Kieran A. Carroll ,  Wayne G. Sincarsin

IPC分类号： H01L39/24 ,  H01F41/04 ,  H01F6/06 ,  H01F41/064 ,  H01F41/098

摘要： A cryogenic coil assembly including a coil substrate with a flat surface, and a number of radial channels cut into a region of the flat surface. The cryogenic coil assembly also includes a spiral coil covering the radial channels, and a chemical bonding agent for bonding the spiral coil to the coil substrate. The chemical bonding agent is present within the radial channels.

公开(公告)号：US10090105B2

公开(公告)日：2018-10-02

申请号：US15141794

申请日：2016-04-28

申请人： Transformers LLC

发明人： Jack Aaron ,  Herb Shapiro ,  Robert Johnson

IPC分类号： H01F7/06 ,  H01F41/064 ,  H01F27/245 ,  H01F27/28 ,  G06F17/50 ,  H01F3/10 ,  H01F27/32 ,  H01F41/079 ,  H01F27/24

摘要： Disclosed is an electrical transformer for improved transformer power capacity and efficiency designed by the application of disclosed design considerations. One embodiment design consideration is a method to configure power transformer windings wherein the minimum distance of the primary windings from the winding axis/core center is greater (the primary windings are more distal) from the winding axis than the minimum distance of the secondary windings, which are wound around the minimum interior core diameter. This design consideration is extended from single bobbin transformer designs to split bobbin designs, with the requisite distal increase of the primary windings (from the core axis) geometrically provided by an enlarged core bobbin center leg (axial) dimension beneath the primary winding window. Another disclosed design consideration is to fix the primary winding length relationship to the core weight for given transformer specifications in accordance with the disclosed unexpected experimental results and formula.

公开(公告)号：US10049803B2

公开(公告)日：2018-08-14

申请号：US14963619

申请日：2015-12-09

申请人： Radial Electronics, Inc.

发明人： James E. Quilici

IPC分类号： H01F5/00 ,  H01F17/00 ,  H01F17/06 ,  H01F41/02 ,  H01F41/04 ,  H05K1/16 ,  H01F41/064 ,  H05K1/02 ,  H05K3/04 ,  H05K3/46 ,  H01F27/02 ,  H01F27/28 ,  H05K3/00

摘要： Disclosed are apparatus and methods for arrayed embedded magnetic components that include magnetic devices that have a core that is embedded between two or more substrates and a winding pattern surrounding the core that is implemented on and through the two or more substrates. The winding pattern is operable to induce a magnetic flux within the core when energized by a time varying voltage potential. The winding pattern may be implemented by printed circuit layers, plated vias, other electrically conductive elements, and combinations thereof. Arrayed embedded magnetic components include two or more electrically interconnected magnetic devices positioned side-by-side in a horizontal integration, positioned top-to-bottom in a vertical integration, or combinations thereof. The magnetic devices may have a magnetic functionality such as, but not limited to, a transformer, inductor, and filter. Disclosed magnetic components and methods provide for low cost construction, consistent performance, and a low profile form, among other benefits.

公开(公告)号：US09984809B2

公开(公告)日：2018-05-29

申请号：US15117081

申请日：2015-03-09

申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

发明人： Ikuya Wakamori ,  Mutsuyasu Ohtsubo ,  Manabu Satou

IPC分类号： H01F27/29 ,  H01F27/02 ,  H01F7/06 ,  H01F27/28 ,  H01F17/04 ,  H01F41/10 ,  H01F41/064 ,  H01F27/255 ,  H01F41/02

CPC分类号： H01F27/2823 ,  H01F17/04 ,  H01F17/041 ,  H01F27/255 ,  H01F27/29 ,  H01F27/292 ,  H01F41/0246 ,  H01F41/064 ,  H01F41/10 ,  H01F2017/048

摘要： A coil component according to the present invention includes: a magnetic core made of a mixture of a powdery magnetic material and a binding agent and obtained by press forming the mixture; a coil element embedded in the magnetic core and having an end portion protruding from the magnetic core; and a holding member configured to hold the end portion of the coil element. The holding member has a first slit and a second slit which faces the first slit. The end portion of the coil element and the holding member are welded together in an area between the first slit and the second slit.