Title:
COIL COMPONENT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/209463
Kind Code:
A1
Abstract:
[Problem] To provide a coil component having a structure in which a magnetic member can be easily embedded in an inner-diameter region of a spiral pattern. [Solution] A coil component 1 comprises: conductor layers 10-60 arranged between magnetic members M1, M2 and including spiral patterns SP1-SP6 that are each spirally wound; insulating resin layers 71-75 respectively provided between the conductor layers 10-60; and a magnetic member M3 embedded in an inner diameter region of the spiral patterns SP1-SP6. The insulating resin layers 71-75 each have a projection projecting in the inner diameter region. The projection of the insulating resin layer 75 is smaller in projection amount than a projection of at least one of the other insulating resin layers. This feature facilitates embedding of the magnetic member M3 in the inner diameter region from one end side in a coil axial direction. In addition, since a larger amount of the magnetic member M3 can be embedded in the inner diameter region, it becomes possible to increase inductance.
Inventors:
OKAZAKI MICHITAKA (JP)
KOKUBO IKUYA (JP)
TAKAHASHI NOBUYA (JP)
ENDO MASAKI (JP)
YONEYAMA MASAKI (JP)
KOKUBO IKUYA (JP)
TAKAHASHI NOBUYA (JP)
ENDO MASAKI (JP)
YONEYAMA MASAKI (JP)
Application Number:
PCT/JP2022/007592
Publication Date:
October 06, 2022
Filing Date:
February 24, 2022
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01F17/00; H01F17/04; H01F41/04; H05K1/16
Domestic Patent References:
| WO2019235510A1 | 2019-12-12 | |||
| WO2013183452A1 | 2013-12-12 |
Foreign References:
| JP2017017103A | 2017-01-19 | |||
| JP2007242800A | 2007-09-20 | |||
| JP2018182222A | 2018-11-15 | |||
| JPH0955316A | 1997-02-25 | |||
| JP2019029638A | 2019-02-21 | |||
| US20160293318A1 | 2016-10-06 | |||
| JP2021068805A | 2021-04-30 |
Attorney, Agent or Firm:
WASHIZU Mitsuhiro et al. (JP)
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