公开(公告)号：US20220102063A1

公开(公告)日：2022-03-31

申请号：US17469770

申请日：2021-09-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuki KANBE ,  Tomoyuki WADA ,  Kazuto SHIBUYA ,  Seiya YUKI

IPC: H01F27/29 ,  H01F27/02 ,  H01F27/24 ,  H01F27/28

Abstract: A coil component includes a core having a winding core portion and one pair of guard portions, a terminal electrode provided on each guard portion, and a wire wound around the winding core portion and having both ends electrically connected to the terminal electrodes. Each guard portion has an inner end face, an outer end face, a bottom surface, a top surface, and two side surfaces. Each terminal electrode has a bottom surface electrode portion continuous over at least the bottom surface and an outer end face electrode portion on the outer end face. The bottom surface electrode portion has a side surface extension portion located lower than a lowest portion of the winding core portion. The outer end face electrode portion is connected to the bottom surface electrode portion, and both end edges of the outer end face electrode portion are located away from both the side surfaces.

公开(公告)号：US20220130597A1

公开(公告)日：2022-04-28

申请号：US17499801

申请日：2021-10-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tomoyuki WADA ,  Kazuto SHIBUYA ,  Seiya YUKI ,  Yuki KANBE

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

Abstract: A coil component includes a core that has a columnar winding core portion and a flange formed at an end of the winding core portion in an axial direction. The coil component also includes a terminal electrode formed at an end surface of the flange and a wire being wound around the winding core portion with one end portion coupled to the terminal electrode. The flange protrudes toward the first end of the coil component in the first direction. A curved surface and an inclined surface are formed at a boundary between a surface of the flange and a peripheral surface of the winding core portion. The inclined surface has a curvature smaller than that of the curved surface. In addition, the inclined surface is disposed where the wire intersects the boundary as viewed in the first direction.