Title:
コア、リアクトル、コアの製造方法及びリアクトルの製造方法
Document Type and Number:
Japanese Patent JP6858158
Kind Code:
B2
Abstract:
To provide a core capable of being easily molded and obtaining an excellent magnetic characteristic, a reactor, a manufacturing method of the core, and a manufacturing method of the reactor.SOLUTION: A core formed by a magnetic powder and a resin, and the magnetic powder contains a first magnetic powder, and a second magnetic powder of which a mean particle diameter is smaller than the first magnetic powder. An additive amount of the first magnetic powder for the magnetic powder is 60 to 80wt%, a ratio of an apparent density of the core for a true density of the magnetic powder is 76.6% or more and is less than 82%, an initial permeability is 30 or more, and an amplitude permeability of 12 kA/m is 24 or more.SELECTED DRAWING: Figure 1
Inventors:
Yasuo Oshima
Hiroshi Arima
Hiroshi Arima
Application Number:
JP2018113196A
Publication Date:
April 14, 2021
Filing Date:
June 13, 2018
Export Citation:
Assignee:
TAMURA CORPORATION OF CHINA LIMITED
International Classes:
H01F27/255; H01F1/22; H01F37/00; H01F41/02
Domestic Patent References:
| JP2010034102A | ||||
| JP2016219758A | ||||
| JP2013251553A | ||||
| JP2017048439A | ||||
| JP2015012188A | ||||
| JP2003068513A |
Attorney, Agent or Firm:
Kiuchi Mitsuharu
Koichi Okuma
Katagiri Sadanori
Kanako Kiuchi
Koichi Okuma
Katagiri Sadanori
Kanako Kiuchi