Title:
REACTOR
Document Type and Number:
Japanese Patent JP2019096699
Kind Code:
A
Abstract:
To provide a reactor having an excellent strength and on which a resin mold part can be formed with ease.SOLUTION: A reactor 1 comprises: a coil 2 having wound parts 2a and 2b; a magnetic core 3 arranged inside and outside the wound parts and that forms a closed magnetic path; and a resin mold part 6 that includes an inner resin part 61 interposed between the wound parts and the magnetic core, and that does not cover outer peripheral surfaces of the wound parts. The magnetic core comprises: a base 310 that has a predetermined magnetic path cross sectional area and is arranged in the wound parts; an inner core piece 31 that has a magnetic path cross sectional area smaller than that of the base, and that includes a connection end part 312 provided at an end part of the base; and an outer core piece 32 that includes a large area part having a magnetic path cross sectional area larger than that of the base, and is exposed from the wound parts. The outer core piece has a relative magnetic permeability larger than that of the inner core piece. The resin mold part includes a thick part 63 that covers a connection position between the connection end part and the outer core piece and that is thicker than a thickness at a position covering the base.SELECTED DRAWING: Figure 1
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Inventors:
INABA KAZUHIRO
Application Number:
JP2017223946A
Publication Date:
June 20, 2019
Filing Date:
November 21, 2017
Export Citation:
Assignee:
AUTO NETWORK GIJUTSU KENKYUSHO KK
SUMITOMO WIRING SYSTEMS
SUMITOMO ELECTRIC INDUSTRIES
SUMITOMO WIRING SYSTEMS
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H01F37/00; H01F27/24
Domestic Patent References:
| JP2017117817A | 2017-06-29 | |||
| JP2017079221A | 2017-04-27 | |||
| JP2015211143A | 2015-11-24 | |||
| JP2014120743A | 2014-06-30 | |||
| JP2011253982A | 2011-12-15 | |||
| JP2008041876A | 2008-02-21 |
Attorney, Agent or Firm:
Hiroshi Yamano