Coil component

Patent metadata

Field	Value
Publication number	US-9905355-B2
Application number	US-201514789540-A
Country	US
Kind code	B2
Filing date	Jul 1, 2015
Priority date	Jul 17, 2014
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A coil component includes a first core, a second core, a lead wire, an outside mark, and an inside mark. The first core includes a winding portion and a pair of core ends. The second core connects a pair of the core ends and includes an inside surface and an outside surface. The lead wire is wound around the winding portion. The outside mark is formed on the outside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in a rotational direction whose central axis is along a normal direction of the outside surface. The inside mark with undulation is formed on the inside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in the rotational direction.

First claim

The invention claimed is:

1. A coil component comprising:
a first core including a winding portion and a pair of core ends provided at both ends of the winding portion;
a second core with a plate shape for connecting a pair of the core ends; and
a lead wire wound around the winding portion, wherein
the second core includes an inside surface and an outside surface,
the inside surface has a pair of fixed parts fixing to a pair of the core ends respectively and faces the first core,
the outside surface faces opposite to the inside surface,
an outside mark is formed on the outside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in a rotational direction whose central axis is along a normal direction of the outside surface,
an inside mark with undulation is formed on the inside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in the rotational direction, and
the second core has a substantially square shape when viewed from the normal direction.

2. The coil component as set forth in claim 1 , wherein
a part of the inside mark is formed on a mark-forming area of the inside surface of the second core and
the mark-forming area faces the core ends at the time of relatively rotating the second core to the first core by 90 degrees in the rotational direction.

3. The coil component as set forth in claim 1 , wherein
the inside mark is formed on a remaining area excluding the fixed parts of the inside surface of the second core.

4. The coil component as set forth in claim 2 , wherein
the inside mark is formed on a remaining area excluding the fixed parts of the inside surface of the second core.

5. The coil component as set forth in claim 1 , wherein
the inside mark is one of a concave, a convex, a groove, and a rough surface formed on the inside surface.

6. The coil component as set forth in claim 2 , wherein
the inside mark is one of a concave, a convex, a groove, and a rough surface formed on the inside surface.

7. The coil component as set forth in claim 3 , wherein
the inside mark is one of a concave, a convex, a groove, and a rough surface formed on the inside surface.

8. The coil component as set forth in claim 4 , wherein
the inside mark is one of a concave, a convex, a groove, and a rough surface formed on the inside surface.

9. The coil component as set forth in claim 1 , wherein
the inside mark has the same shape as the outside mark and
the inside mark of the inside surface is arranged in the same way as the outside mark of the outside surface.

Assignees

• Tdk Corp

Inventors

• Takagi Nobuo
• Mikogami Tasuku
• Tsuchida Setu
• Abe Hiroyuki

Classifications

• H01F27/266

  Fastening or mounting the core on casing or support (on coil H01F27/30) · CPC title

• H01F27/306 Primary

  Fastening or mounting coils or windings on core, casing or other support · CPC title

• H01F2019/085

  Transformer for galvanic isolation · CPC title