Reactor

Patent metadata

Field	Value
Publication number	US-10163563-B2
Application number	US-201615561182-A
Country	US
Kind code	B2
Filing date	Mar 22, 2016
Priority date	Apr 3, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

Provided is a reactor in which an accessory member that is attached to the reactor is integrated with an assembly. The reactor includes an assembly of a coil having a winding portion and a magnetic core and an accessory member that is attached to the assembly. In this reactor, an outer core portion of the magnetic core is made of a composite material obtained by dispersing soft magnetic powder in a resin, the outer core portion protruding from the winding portion, and the accessory member includes an embedded portion that is embedded in the outer core portion and a functional portion that protrudes outward from the outer core portion.

First claim

The invention claimed is:

1. A reactor comprising:
an assembly of a coil having a winding portion and a magnetic core;
an accessory member that is attached to the assembly; and
a placement plate on which the assembly is placed,
wherein an outer core portion of the magnetic core is made of a composite material obtained by dispersing soft magnetic powder in a resin, the outer core portion protruding from the winding portion,
the accessory member is a fixing member for fixing the assembly on the placement plate, and includes an embedded portion that is embedded in the outer core portion and a functional portion that protrudes outward from the outer core portion, and
the functional portion has a leg-shape and is fastened to the placement plate.

2. The reactor according to claim 1 ,
wherein the magnetic core includes an inner core portion that is disposed inside the winding portion,
the outer core portion has a protruding portion that protrudes downward and/or upward in a height direction of the reactor with respect to the inner core portion, and
the embedded portion is embedded in the protruding portion.

3. A reactor comprising:
an assembly of a coil having a winding portion and a magnetic core;
an accessory member that is attached to the assembly; and
a case for accommodating the assembly,
wherein an outer core portion of the magnetic core is made of a composite material obtained by dispersing soft magnetic powder in a resin, the outer core portion protruding from the winding portion,
the accessory member is a positioning member that is in contact with an inner circumferential surface of the case and positions the assembly in the case, and includes an embedded portion that is embedded in the outer core portion and a functional portion that protrudes outward from the outer core portion, and
the functional portion is formed with an elastic piece.

4. The reactor according to claim 3 ,
wherein the magnetic core includes an inner core portion that is disposed inside the winding portion,
the outer core portion has a protruding portion that protrudes downward and/or upward in a height direction of the reactor with respect to the inner core portion, and
the embedded portion is embedded in the protruding portion.

5. A reactor comprising:
an assembly of a coil having a winding portion and a magnetic core;
an accessory member that is attached to the assembly; and
a temperature sensor for measuring a temperature of the reactor,
wherein an outer core portion of the magnetic core is made of a composite material obtained by dispersing soft magnetic powder in a resin, the outer core portion protruding from the winding portion, and
the accessory member is a sensor holding member for holding the temperature sensor, and includes an embedded portion that is embedded in the outer core portion and a functional portion that protrudes outward from the outer core portion.

6. The reactor according to claim 5 ,
wherein the magnetic core includes an inner core portion that is disposed inside the winding portion,
the outer core portion has a protruding portion that protrudes downward and/or upward in a height direction of the reactor with respect to the inner core portion, and
the embedded portion is embedded in the protruding portion.

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries

Inventors

• Shitama Seiji
• Kato Masayuki
• Nishi Kouji
• Inaba Kazuhiro

Classifications

• H01F27/40 Primary

  Structural association with built-in electric component, e.g. fuse · CPC title

• H01F27/255 Primary

  made from particles (H01F27/26 takes precedence) · CPC title

• H01F27/24

  Magnetic cores · CPC title

• H01F37/00

  Fixed inductances not covered by group H01F17/00 · CPC title

• H01F27/28

  Coils; Windings; Conductive connections · CPC title