Patent ID: 11935679
Assignee: TDK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A core comprising:
a winding core part, and
a flange part at an axial end part of the winding core part, wherein
the flange part comprises a concave part and a wall,
when viewed from a direction parallel to the axial direction of the winding core part, a bottom surface of the concave part is located closer to one end of the flange part than the other end of the flange part,
the wall (i) includes a first side surface defined by the concave part and a second side surface defined by an inner end surface of the flange part at the axial end part and (ii) extends upwardly from the bottom surface of the concave part between the concave part and the inner end surface of the flange part,
the first side surface and the second side surface are opposite surfaces,
the concave part has the bottom surface, the first side surface, a first facing surface and a second facing surface facing the first facing surface,
the first side surface, the first facing surface and the second facing surface extend upwardly from the bottom surface, and
the first side surface is connected to the first facing surface and the second facing surface.