Electronic component and method for manufacturing electronic component

Patent metadata

Field	Value
Publication number	US-10438737-B2
Application number	US-201615364749-A
Country	US
Kind code	B2
Filing date	Nov 30, 2016
Priority date	Mar 14, 2013
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

An electronic component includes a magnetic core member, a winding and a magnetic exterior body. The magnetic core member has a flat base and a core. The flat base has a top surface, a bottom surface, a first side surface and a second side surface opposite to the first side surface. The core is located on the top surface of the flat base. A winding has an edgewise coil and two non-wound flat wires that extend from the edgewise coil. A magnetic exterior body covers at least the core and the edgewise coil. The two non-wound flat wires continuously extend along the top surface, the first side surface, the bottom surface and the second side surface of the flat base in this order. The two non-wound flat wires located on the bottom surface work as electrodes.

First claim

What is claimed is:

1. An electronic component, comprising:
a magnetic core member that is made of a magnetic material and that has a flat base and a core, the flat base having a top surface, a bottom surface, a first side surface and a second side surface opposite to the first side surface, the core is located on the top surface of the flat base;
a winding that has an edgewise coil in which a flat wire is wound and in which the core is inserted, the winding having two non-wound flat wires that extend from the edgewise coil; and
a magnetic exterior body that covers at least the core and the edgewise coil, wherein
the two non-wound flat wires continuously extend along the top surface, the first side surface, the bottom surface and the second side surface of the flat base in this order, and the two non-wound flat wires are positioned around the flat base without using an adhesive,
the two non-wound flat wires located on the bottom surface are externally exposed to work as electrodes,
two ends located near the second side surface of the two non-wound wires project from the top surface, and the two ends are bent toward the edgewise coil at an obtuse angle with respect to the second side surface so that the two ends do not contact the top surface of the flat base, and
the two ends of the two non-wound flat wires are embedded into the magnetic exterior body so that the two non-wound flat wire are fixed to the magnetic exterior body via the embedded two end of the two non-wound flat wires.

2. The electronic component according to claim 1 , wherein
the bottom surface of the flat base has two electrode grooves, and
the two non-wound wires are respectively located in the two electrode grooves.

3. The electronic component according to claim 1 , wherein
the first and second side surfaces of the flat base each respectively has first and second guide grooves, and
the two non-wound wires are respectively located in the first and second guide grooves.

4. The electronic component according to claim 1 , wherein
two side surfaces of the flat base respectively located between the first and second side surfaces slant downward.

Assignees

• Sumida Corp

Inventors

• Sakamoto Shinichi
• Cheng Zhigang
• Chan Mock Fernando
• Kawarai Mitsugu

Classifications

• H01F27/292

  Surface mounted devices · CPC title

• H01F27/29 Primary

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H01F27/30

  Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support · CPC title

• H01F41/04

  for manufacturing coils {(coils for transformer or inductances H01F27/28)} · CPC title

• Y10T29/49073

  by assembling coil and core · CPC title