公开(公告)号：US11636967B2

公开(公告)日：2023-04-25

申请号：US17000963

申请日：2020-08-24

Applicant: TDK CORPORATION

Inventor： Yoshihiro Kawasaki ,  Masato Otsuka ,  Taishi Kitamura

IPC: H01F17/00 ,  H01F27/28 ,  H01F27/29 ,  H01F17/04

Abstract: A coil device has a core including a winding core portion and a flange portion formed on an X-axis-direction end portion of the winding core portion, a coil portion formed by wires being wound around the winding core portion, and terminal electrodes provided on the flange portion. Leadout portions of the wires are respectively connected to the terminal electrodes. A main protuberance having a protuberating shape is formed on an upper surface of the flange portion. The first and second leadout portions of the wires are connected to the first and second terminal electrodes outside the main protuberance in the X-axis direction.

公开(公告)号：US11621118B2

公开(公告)日：2023-04-04

申请号：US16782148

申请日：2020-02-05

Applicant: TDK CORPORATION

Inventor： Munehito Nishimura ,  Yoshihiro Kawasaki ,  Masato Otsuka ,  Taishi Kitamura

IPC: H01F27/24 ,  H01F27/29 ,  H01F27/28

Abstract: A coil device includes a core including a winding core portion and a flange portion provided in an end portion of the winding core portion in an X-axis direction, a coil portion formed by a first wire and a second wire being wound around the winding core portion, and a first terminal electrode formed on one end side of the flange portion in a Y-axis direction, a first lead portion of the first wire being connected to the first terminal electrode, and a second terminal electrode formed on the other end side of the flange portion in the Y-axis direction, a second lead portion of the second wire being connected to the second terminal electrode. The width of the flange portion along X-axis-direction is different between one end and the other end of the flange portion in the Y-axis-direction.