公开(公告)号：US20220392692A1

公开(公告)日：2022-12-08

申请号：US17830908

申请日：2022-06-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhuyong HUANG ,  Xiaofei ZHANG ,  Xiaoqing HU ,  Zelong ZHANG ,  Peng SHUAI

IPC: H01F27/28 ,  H01F27/24 ,  H01F41/06 ,  H01F41/00 ,  H01F27/36

Abstract: This application provides a dry-type transformer and a winding method thereof. The dry-type transformer includes a magnetic core, a first coil, a second coil, and a shielding component. The first coil is disposed around the exterior of the magnetic core, and the second coil is disposed around the exterior of the first coil. In a direction from the iron core to the second coil, the shielding component includes a first conducting layer, a second conducting layer, a third conducting layer, and a fourth conducting layer that are sequentially disposed at intervals, the first coil is disposed between the magnetic core and the first conducting layer, and the second coil is disposed between the second conducting layer and the third conducting layer.

公开(公告)号：US11437178B2

公开(公告)日：2022-09-06

申请号：US16655534

申请日：2019-10-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenichi Araki

IPC: H01F27/28 ,  H01F41/00 ,  H01F41/02 ,  H01F27/255 ,  H01F27/29

Abstract: A coil component including: a magnetic body containing a magnetic material and a resin; a coil buried in the magnetic body; and a pair of outer electrodes electrically connected to the coil. One or more side faces of the magnetic body have a groove, and the groove contains a silicone resin.

公开(公告)号：US20220262551A1

公开(公告)日：2022-08-18

申请号：US17628295

申请日：2020-08-26

Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.

Inventor： Yorito NISHIZAWA ,  Koji TANOUE

IPC: H01F1/147 ,  H01F41/00 ,  B22F1/16 ,  B22F1/052

Abstract: Silicon oxide-coated Fe-based soft magnetic powder having a high insulation capability can be obtained in such a manner that Fe-based soft magnetic powder is dispersed in a mixed solvent of water and an alcohol having a Hansen solubility parameter (SP value) of 11.3 or less, containing 5% by mass or more and 50% by mass or less of water, so as to provide a slurry. Then, a silicon alkoxide and a hydrolysis catalyst for the silicon alkoxide are added to the slurry to coat a silicon oxide thereon. The silicon oxide-coated Fe-based soft magnetic powder is capable of providing a powder compact having a high volume resistivity in molding into a powder compact. A method of producing the same is also disclosed.

公开(公告)号：US20220203582A1

公开(公告)日：2022-06-30

申请号：US17699583

申请日：2022-03-21

Applicant: SUMIDA CORPORATION

Inventor： Motomi TAKAHASHI ,  Tomohiro KAJIYAMA ,  Teruaki TANAKA ,  Shinichi SAKAMOTO ,  Juichi OKI ,  Mitsugu KAWARAI ,  Tsutomu OTSUKA

IPC: B29C43/18 ,  H01F41/00 ,  B29C43/00 ,  H01F27/28 ,  H01F27/29 ,  H01F17/04 ,  H01F41/061 ,  H01F41/076 ,  H01F41/02 ,  B22F1/10 ,  B29C43/52

Abstract: A manufacturing method of a coil component comprising the steps of: preparing a coil assembly body in which a coil is attached on a magnetic core and a mold body which is formed with a cavity portion in the inside thereof and which includes at least one opening portion, putting a viscous admixture including magnetic powders and thermosetting resin and the coil assembly body in the cavity portion, pushing the put-in viscous admixture in the mold body, and thermally-curing the pushed-in viscous admixture and forming a magnetic exterior body which covers the coil assembly body.

公开(公告)号：US11335999B2

公开(公告)日：2022-05-17

申请号：US16706407

申请日：2019-12-06

Applicant: NUCURRENT, INC.

Inventor： Vinit Singh ,  Christine A. Frysz

IPC: H01Q1/38 ,  H01R43/00 ,  H01F7/06 ,  H02J7/02 ,  H02J50/12 ,  A61N1/05 ,  A61N1/372 ,  A61N1/378 ,  H01F38/14 ,  H04B5/00 ,  H01F27/28 ,  H01F29/02 ,  H05B6/06 ,  H05B6/36 ,  H01F5/00 ,  H01F17/00 ,  H01F41/04 ,  H05B6/12 ,  H01F41/00 ,  H01Q7/00 ,  H02P13/00 ,  H03H7/01 ,  B33Y80/00 ,  A61N1/375 ,  H05K1/16 ,  A61N1/36

Abstract: A structure for wireless communication having a plurality of conductor layers, an insulator layer separating each of the conductor layers, and at least one connector connecting two of the conductor layers wherein an electrical resistance is reduced when an electrical signal is induced in the resonator at a predetermined frequency. The structure is capable of transmitting or receiving electrical energy and/or data at various near and far field magnetic coupling frequencies.

公开(公告)号：US20220122925A1

公开(公告)日：2022-04-21

申请号：US17646155

申请日：2021-12-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Toru KOMATSU ,  Tadashi NOMURA

IPC: H01L23/552 ,  H01F41/00 ,  H01L25/16 ,  H01F27/36

Abstract: A module includes a substrate including a first main surface, a first component mounted on the first main surface, a first sealing resin including a first upper surface, the first component being sealed with the first sealing resin, a first shield film that covers at least a part of the first upper surface of the first sealing resin, and a second shield film that covers a side surface of the first sealing resin and a side surface of the substrate. A step portion lower than the first upper surface of the first sealing resin is provided on an outer periphery of the first sealing resin. The first shield film and the second shield film are electrically connected to each other on a side surface below the step portion.

公开(公告)号：US20220093324A1

公开(公告)日：2022-03-24

申请号：US17425565

申请日：2020-02-14

Applicant: TDK Electronics AG

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

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

Abstract: 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：US11276523B2

公开(公告)日：2022-03-15

申请号：US16152462

申请日：2018-10-05

Applicant: DENSO CORPORATION

Inventor： Kengo Osawa ,  Masahiro Inagaki

IPC: H01F38/12 ,  H01F27/32 ,  F02P3/04 ,  H01F27/02 ,  H01F41/00 ,  H01F27/24

Abstract: An ignition coil includes a primary coil, a secondary coil, a primary bobbin, a secondary bobbin, a center core, and a mold resin. The center core has a pair of collar portions protruding from a main body of the center core respectively to opposite sides in a protruding direction. The primary bobbin has a collar portion at least partially sandwiched between the collar portions of the center core and the secondary bobbin in a coil axial direction. The collar portion of the primary bobbin includes an overlapping portion that overlaps the collar portions of the center core in the coil axial direction and is bonded to the collar portions. The primary bobbin is formed of a thermoplastic resin and dispersed-phase particles dispersed in the thermoplastic resin. In the overlapping portion of the primary bobbin, there is formed a specific separating layer that separates adjacent layers in the coil axial direction.

公开(公告)号：US11105868B2

公开(公告)日：2021-08-31

申请号：US16797803

申请日：2020-02-21

Applicant: NOKOMIS, INC.

Inventor： Walter J Keller, III ,  Adam Taylor Brant ,  Andrew Richard Portune ,  James Robert Uplinger, II ,  Todd Eric Chornenky

IPC: G01R33/34 ,  H01F41/00 ,  H01F41/079 ,  G01R33/341

Abstract: A device to extract digital and unintended analog signals from a data bus with a non-contact common mode probe and a differential mode probe, each with a low noise amplifier. The analog and digital signals can be monitored contemporaneously.

公开(公告)号：US10916374B2

公开(公告)日：2021-02-09

申请号：US15862925

申请日：2018-01-05

Applicant: SUMIDA CORPORATION

Inventor： Teruaki Tanaka

IPC: H01F3/08 ,  H01F7/06 ,  H01F41/076 ,  H01F27/29 ,  H01F27/02 ,  H01F1/153 ,  H01F41/02 ,  H01F17/04 ,  H01F27/06 ,  H01F41/00

Abstract: A manufacturing method of a coil component for forming a coil-assembly body in which a coil is mounted on a magnetic-body core, comprising the steps of: inputting the coil-assembly body and an admixture containing a magnetic powder and a resin into a container; applying pressure onto the admixture which is inputted into the container; depressurizing an air pressure of an environment, in which the admixture is placed, to become a negative-pressure lower than the atmospheric pressure at least during the pressurizing process in the step of applying pressure; applying vibration onto the admixture and filling the admixture in the container at least during the depressurizing process in the step of depressurizing; and curing the resin contained in the admixture for the integrated object of the admixture and the coil-assembly body which passed through the step of depressurizing and the step of applying vibration.