公开(公告)号：US20240120147A1

公开(公告)日：2024-04-11

申请号：US18480547

申请日：2023-10-04

Applicant: TDK CORPORATION

Inventor： Masaru KUMAGAI ,  Shinichiro KOKUBO ,  Ge LI

IPC: H01F27/32 ,  H01F27/28 ,  H01F27/30

CPC classification number: H01F27/325 ,  H01F27/2823 ,  H01F27/306

Abstract: A flat coil comprises a coil main portion having a flat shape; a lead portion drawn out from the coil main portion; and a heat-dissipating portion provided to the coil main portion at a location different from where the lead portion is drawn out from the coil main portion, the heat-dissipating portion meeting the coil main portion at a predetermined angle.

公开(公告)号：US20210193363A1

公开(公告)日：2021-06-24

申请号：US17128387

申请日：2020-12-21

Applicant: TDK CORPORATION

Inventor： Ge LI ,  Masahiro GAMOU

IPC: H01F27/26 ,  H01F27/28

Abstract: A coil component includes a first core having a leg portion, a second core joined to the first core with the leg portion therebetween, and a magnet disposed between the leg portion and the second core. Movement of the magnet in a first direction intersecting a direction in which the first core and the second core face each other is at least restricted by an uneven structure provided on a junction surface between the magnet and at least one of the first core and the second core.

公开(公告)号：US20240136120A1

公开(公告)日：2024-04-25

申请号：US18491149

申请日：2023-10-19

Applicant: TDK CORPORATION

Inventor： Ge LI ,  Toshiyuki HORIKAWA

IPC: H01F27/32 ,  H01F38/08

CPC classification number: H01F27/325 ,  H01F38/08 ,  H01F27/306

Abstract: A coil device includes a bobbin, a first coil provided to the bobbin, and a second coil provided outside the first coil. The first coil includes a first portion provided inside the second coil and a second portion next to the first portion and the second coil along a winding axis of the first portion. A first protrusion portion, a second protrusion portion, and a partition protrusion portion each protruding in a radial direction of the bobbin are formed on an outer peripheral surface of the bobbin.

公开(公告)号：US20210193364A1

公开(公告)日：2021-06-24

申请号：US17128331

申请日：2020-12-21

Applicant: TDK CORPORATION

Inventor： Ge LI ,  Junpei SAWAYAMA

IPC: H01F27/26 ,  H01F27/28

Abstract: The first core includes a main body part extending in a first direction along a main surface of the substrate, a first foot part extending from the main body part to the second core through the substrate, and a second foot part extending from the main body part to the second core through the substrate at a position at which the coil conductor is sandwiched between itself and the first foot part in the first direction, and the insulating member includes a bottom wall part interposed between at least the first foot part and the second core, and a side wall part extending along at least either of the first foot part and the second foot part and interposed between either of the foot parts and the coil conductor.

公开(公告)号：US20240234024A9

公开(公告)日：2024-07-11

申请号：US18491149

申请日：2023-10-20

Applicant: TDK CORPORATION

Inventor： Ge LI ,  Toshiyuki HORIKAWA

IPC: H01F27/32 ,  H01F38/08

CPC classification number: H01F27/325 ,  H01F38/08 ,  H01F27/306

Abstract: A coil device includes a bobbin, a first coil provided to the bobbin, and a second coil provided outside the first coil. The first coil includes a first portion provided inside the second coil and a second portion next to the first portion and the second coil along a winding axis of the first portion. A first protrusion portion, a second protrusion portion, and a partition protrusion portion each protruding in a radial direction of the bobbin are formed on an outer peripheral surface of the bobbin.