Reactor

Patent metadata

Field	Value
Publication number	US-2016358704-A1
Application number	US-201615172107-A
Country	US
Kind code	A1
Filing date	Jun 2, 2016
Priority date	Jun 5, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A reactor includes: a reactor body having a core; and an installation destination object on which the reactor body is mounted; wherein the reactor body has three fixing portions for fixing the reactor body to the installation destination object, the installation destination object has mount portions for mounting the fixing portions, and the reactor body is fixed to the installation destination object by the fixing portions being mounted on the mount portions.

First claim

What is claimed is:

1 . A reactor comprising:
a reactor body having a core; and an installation destination object on which the reactor body is mounted; wherein the reactor body has three fixing portions for fixing the reactor body to the installation destination object, the installation destination object has mount portions for mounting the fixing portions, and the reactor body is fixed to the installation destination object by the fixing portions being mounted on the mount portions.

2 . The reactor according to claim 1 , wherein
the installation destination object is a case that houses the reactor body, and the case has:
sidewalls; and
the mount portions that are provided to the sidewalls and are for mounting the fixing portions.

3 . The reactor according to claim 2 , wherein
the reactor body has a resin member that covers the circumference of the core, and the resin member is provided with the fixing portions integrally molded continuously from a location covering the core.

4 . The reactor according to claim 2 , wherein the sidewalls are flexible.

5 . The reactor according to claim 2 , wherein
the mount portions are provided on top surface portions of the sidewalls, and the case has an opening formed by the sidewalls, the opening deforming due to a linear expansion difference between the reactor body and the case.

6 . The reactor according to claim 3 , comprising:
a coil fit to the resin member so as to wind around the circumference of the core; and a bus bar whose one end is electrically connected with the coil and another end is electrically connected with an external device by fastening, wherein two of the fixing portions are provided at both sides of the bus bar.

7 . The reactor according to claim 2 , wherein the case is made with any of aluminum, resin, iron, magnesium and zinc or two or more types of these.

8 . The reactor according to claim 3 , wherein
the core is an annular core, the annular core includes:
two or more leg portions configured with I-shaped cores; and
a pair of yoke portions arranged at both end portions of the leg portions,
the three fixing portions are a first fixing portion, a second fixing portion and a third fixing portion, and the third fixing portion is provided to the resin member on a side of one of the yoke portions, and the first fixing portion and the second fixing portion are provided to the resin member on a side of another one of the yoke portions.

9 . The reactor according to claim 3 , wherein
the core is an annular core, the annular core includes:
two or more leg portions configured with I-shaped cores; and
a pair of yoke portions arranged at both end portions of the leg portions,
the three fixing portions are a first fixing portion, a second fixing portion and a third fixing portion, the third fixing portion is provided at a central part of the resin member on a side of one of the yoke portions, a length of a line connecting the third fixing portion and the first fixing portion and a length of a line connecting the third fixing portion and the second fixing portion are equal to each other, and one plane formed by the three fixing portions is isosceles triangle-shaped.

10 . The reactor according to claim 2 , wherein
the core is an annular core, the annular core includes:
two or more leg portions configured with I-shaped cores; and
a pair of yoke portions arranged at both end portions of the leg portions,
at least one of the fixing portions is formed in a direction extending outward from a bent portion of the yoke portion, and at least one of the mount portions is provided at a corner portion formed by two of the sidewalls, and the fixing portion formed in a direction extending outward from the bent portion is mounted on the at least one of the mount portions.

11 . The reactor according to claim 2 , wherein
the core is an annular core, the annular core has:
two or more leg portions configured with I-shaped cores; and
a pair of yoke portions arranged at both end portions of the leg portions,
upper edges of the sidewalls of the case form an approximately quadrangle opening, the three fixing portions are a first fixing portion, a second fixing portion and a third fixing portion, the third fixing portion is fixed to the mount portion arranged at the upper edge of the sidewall opposite to the yoke portion, and the first fixing portion and the second fixing portion are fixed to the mount portions arranged at the upper edge of the sidewall on a side opposite to the sidewall to which the third fixing portion is fixed.

12 . The reactor according to claim 1 , wherein
the three fixing portions form one plane which is triangle-shaped and formed by the respective fixing portions as its apexes, and the reactor body is fixed to the installation destination object in a state where the three fixing portions maintain the shape of the one plane.

13 . The reactor according to claim 8 , wherein,
the resin member includes:
a first joint portion including a straight line portion that covers a pair of leg portions of the annular core; and
a second joint portion that is joined with the first joint portion,
the third fixing portion is provided at the first joint portion, and the first fixing portion and the second fixing portion are provided at the second joint portion.

14 . The reactor according to claim 3 , wherein
at least one of the fixing portions has an extending portion provided to extend from the resin member, the extending portion is flexible in at least one direction among a height direction of the reactor and a lateral direction vertical to the height direction, and a screw through-hole to be fastened with the mount portion is formed at a tip of the extending portion.

15 . The reactor according to claim 5 , wherein
the core is an annular core, the annular core has:
two or more leg portions configured with I-shaped cores; and
a pair of yoke portions arranged at both end portions of the leg portions,
upper edges of the sidewalls of the case form an approximately quadrangle opening, the three fixing portions are a first fixing portion, a second fixing portion and a third fixing portion, the third fixing portion is fixed to the mount portion arranged at the upper edge of the sidewall opposite to the yoke portions, and the first fixing portion and the second fixing portion are fixed to the mount portions arranged at the upper edge of the sidewall on a side opposite to the sidewall to which the third fixing portion is fixed.

Assignees

• Tamura Seisakusho Kk

Inventors

• Suzuki Kotaro
• Hamada Tsutomu

Classifications

• H01F37/00

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

• H01F27/06 Primary

  Mounting, supporting or suspending transformers, reactors or choke coils {not being of the signal type} · CPC title

• H01F27/02

  Casings · CPC title

• H01F3/00

  Cores, Yokes, or armatures (magnetic materials H01F1/00; permanent magnets H01F7/02) · CPC title

• H01F27/29

  Terminals; Tapping arrangements {for signal inductances} · CPC title