Electronic component and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10692644-B2
Application number	US-201715840932-A
Country	US
Kind code	B2
Filing date	Dec 13, 2017
Priority date	Dec 22, 2016
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

An electronic component includes at least one coil including a winding part and lead-out end parts at both ends thereof, and a magnetic molded body having a mounting surface with the coil incorporated therein. The lead-out end parts are led out toward the mounting surface such that end surfaces of the lead-out end parts are arranged on the same plane as the mounting surface.

First claim

What is claimed is:

1. An electronic component comprising:
at least one coil including a winding part and a pair of lead-out end parts drawn from both ends of the winding part;
a magnetic molded body having a mounting surface with the coil incorporated therein; and
a plurality of external terminals formed only on the mounting surface and respectively contacting the end surfaces of the pair of lead out end parts, wherein
the winding part is formed by winding a conductor in two tiers, the conductor having a rectangular cross section, a wider surface of the conductor at each end of the conductor being parallel to the winding axis so that both ends of the conductor are located on the outer part of the winding portion,
the pair of lead-out end parts are led out toward the mounting surface with the wide surface at each of the pair of lead-out end parts being parallel to each other such that end surfaces of the pair of lead-out end parts are arranged only on the same plane as the mounting surface,
the end surfaces of the pair of lead-out end parts are cross sections of the conductor, and
the coil is incorporated in the magnetic molded body such that a winding axis of the coil is arranged to be parallel to the mounting surface of the magnetic molded body.

2. The electronic component according to claim 1 , comprising a plurality of the coils, wherein at least two of the coils have the respective winding parts stacked in a winding axis direction of the coils.

3. The electronic component according to claim 2 , wherein an intermediate layer is disposed between the stacked coils.

4. The electronic component according to claim 3 , wherein the intermediate layer comprises an insulating layer having a major surface orthogonal to the mounting surface.

5. The electronic component according to claim 3 , wherein the intermediate layer comprises a magnetic flux blocking sheet having a major surface orthogonal to the mounting surface.

6. The electronic component according to claim 3 , wherein the intermediate layer is sandwiched by a pair of magnetic sheets.

Assignees

• Murata Manufacturing Co

Inventors

• Muneuchi Keita
• Iso Eiji

Classifications

• H01F27/366

  made of ferromagnetic material · CPC title

• H01F2027/2809

  on stacked layers · CPC title

• H01F41/04

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

• H01F27/324

  Insulation between coil and core, between different winding sections, around the coil; Other insulation structures · CPC title

• H01F27/006

  with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance · CPC title