公开(公告)号：US20210272745A1

公开(公告)日：2021-09-02

申请号：US17188002

申请日：2021-03-01

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F27/30 ,  H01F27/245

Abstract: A coil device capable of reducing magnetic coupling between conductors while ensuring good inductance characteristics is provided. A coil device 10 includes a first core 20, a second core 30 combined with the first core 20, and a first conductor 40 and a second conductor 50 arranged adjacent to each other between the first core 20 and the second core 30. At least one of the first core 20 and the second core 30 includes a center leg portion 23 (or a center leg portion 33) and a pair of outer leg portions 22a, 22b (or outer leg portions 32a, 32b) arranged on both sides of the center leg portion 23 (or center leg portion 33), and a magnetic body is arranged between the first conductor 40 and the second conductor 50.

公开(公告)号：US20240203640A1

公开(公告)日：2024-06-20

申请号：US18593402

申请日：2024-03-01

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Syun ASHIZAWA ,  Satoshi SUGIMOTO

IPC: H01F27/32 ,  H01F27/02 ,  H01F27/24 ,  H01F27/28 ,  H01F41/12

CPC classification number: H01F27/327 ,  H01F27/02 ,  H01F27/24 ,  H01F27/2866 ,  H01F41/125

Abstract: A coil device includes a first conductor, a second conductor, and a core. The second conductor is disposed inside the first conductor and at least partly extending along the first conductor. The core internally arranges the first conductor and the second conductor. An insulating layer is formed at least between the first conductor and the second conductor.

公开(公告)号：US20190214181A1

公开(公告)日：2019-07-11

申请号：US16196603

申请日：2018-11-20

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F27/26 ,  H01F27/28 ,  H01F27/02

CPC classification number: H01F27/266 ,  H01F27/022 ,  H01F27/2823

Abstract: An inductor element includes a first conductive portion, a second conductive portion, and a magnetic core. The first conductive portion includes a first round-about portion, a first mount portion, and a second mount portion. The second conductive portion includes a second round-about portion, a third mount portion, and a fourth mount portion. The magnetic core houses at least a part of the first and second conductive portions so that each mount surface of the first to fourth mount portions is exposed from one side of the magnetic core. The first and second conductive portions are arranged so that the first and second directions are substantially parallel and opposite to each other. The first and third mount portions are at least partially overlapped with each other in a third direction perpendicular to the first and second directions.

公开(公告)号：US20250088078A1

公开(公告)日：2025-03-13

申请号：US18827904

申请日：2024-09-09

Applicant: TDK Corporation

Inventor： Chen WANG ,  Koji MITAKE

IPC: H02K11/25 ,  H02K1/27

Abstract: A magnet temperature information output device includes a first element provided on a rotor, a second element provided on a stator, an electric resistance element, and an output section. The first element includes a temperature sensitive element and a first coil. In the temperature sensitive element, electric resistance changes responding to a temperature of the permanent magnet. The first coil is electrically connected to the temperature sensitive element. The second element includes a second coil. The second coil is arranged to be magnetically coupled to the first coil. The electric resistance element is electrically connected to the second element. The output section is electrically connected to the second element and the electric resistance element. The output section is arranged to output an electric signal responding to a magnitude of a voltage drop occurring in the electric resistance element as temperature information regarding the temperature of the permanent magnet.

公开(公告)号：US20210375519A1

公开(公告)日：2021-12-02

申请号：US17330694

申请日：2021-05-26

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F17/04 ,  H01F27/24 ,  H01F27/28

Abstract: A coil device includes a core, a coil, a mounting part, and a bottom raising part. The coil is at least partly disposed close to the core. The mounting part is mounted on an installation surface. The bottom raising part is connected with the coil and extends to the mounting part so as to form a gap having a predetermined height between the mounting part and a bottom surface of the core.

公开(公告)号：US20210257157A1

公开(公告)日：2021-08-19

申请号：US16794454

申请日：2020-02-19

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO ,  Leo YAO

IPC: H01F27/38 ,  H01F17/04 ,  H01F3/14 ,  H01F27/29 ,  H01F38/02

Abstract: A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.

公开(公告)号：US20210090785A1

公开(公告)日：2021-03-25

申请号：US17009909

申请日：2020-09-02

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F27/29 ,  H01F27/24

Abstract: An inductor element includes a core including a first core portion and a second core portion that are disposed to face each other in a first direction; and a conductor including a first mounting portion and a second mounting portion that are exposed from the core at a predetermined interval therebetween on one side of a second direction orthogonal to the first direction, and a connecting portion which connects the first mounting portion and the second mounting portion and of which at least a part is interposed between the first core portion and the second core portion. The first mounting portion and the second mounting portion are disposed to overlap both of the first core portion and the second core portion as seen from the second direction.

公开(公告)号：US20210358678A1

公开(公告)日：2021-11-18

申请号：US17318637

申请日：2021-05-12

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F27/28 ,  H01F27/32 ,  H01F27/24

Abstract: A coil device includes a first conductor, a second conductor, and a core. The second conductor is disposed inside the first conductor and at least partly extending along the first conductor. The core internally arranges the first conductor and the second conductor. An insulating layer is formed at least between the first conductor and the second conductor.

公开(公告)号：US20210358676A1

公开(公告)日：2021-11-18

申请号：US17318358

申请日：2021-05-12

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO

IPC: H01F27/28 ,  H01F17/04 ,  H01F27/245

Abstract: A coil device includes a first core, a second core, and a conductor. The first core includes a first leg. The second core is disposed with a gap between the first leg and the second core. The conductor is at least partly disposed between the first core and the second core. A notch is formed on the conductor at a position corresponding to the gap.

公开(公告)号：US20210257145A1

公开(公告)日：2021-08-19

申请号：US16794444

申请日：2020-02-19

Applicant: TDK CORPORATION

Inventor： Chen WANG ,  Satoshi SUGIMOTO ,  Leo YAO

IPC: H01F27/24 ,  H01F27/28

Abstract: A coil device includes a pair of first core and second core, a third core, and a pair of first coil and second coil. The third core is disposed next to the first core or the second core. The pair of first coil and second coil is each disposed between any two of the first core, the second core, and the third core next to each other. Plate surfaces of the first coil and the second coil are opposed to each other. Each of the first coil and the second coil is partly exposed in a lateral direction of the first core, the second core, or the third core.