Three-phase reactor including vibration suppressing structure part

Patent metadata

Field	Value
Publication number	US-10529481-B2
Application number	US-201815865831-A
Country	US
Kind code	B2
Filing date	Jan 9, 2018
Priority date	Jan 18, 2017
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A three-phase reactor includes an outer peripheral iron core for surrounding the outer periphery of the three-phase reactor, and at least three iron core coils, which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils includes iron cores and coils wound around the iron cores. Gaps, which can be magnetically coupled, are each formed between two adjacent ones of the iron cores. The three-phase reactor further includes a vibration suppressing structure part disposed in the vicinity of the gaps so as to reduce vibrations occurring at the gaps.

First claim

What is claimed is:

1. A three-phase reactor comprising:
an outer peripheral iron core for surrounding the outer periphery of the three-phase reactor;
at least three iron core coils, which are in contact with or coupled to the inner surface of the outer peripheral iron core, wherein
the at least three iron core coils include iron cores and coils wound around the iron cores, and
gaps, which can be magnetically coupled, are each formed between two adjacent ones of the iron cores; and
a vibration suppressing structure part disposed at an intersection of the gaps or the vicinity of the intersection so as to reduce vibrations occurring at the gaps, the vibration suppressing structure part includes:
a vibration reducing part having a plurality of elastic extensions spaced apart from each other, each of the plurality of elastic extensions radially extending from the intersection of the gaps to a respective one of the iron cores, and
a fixture for pressing each of the plurality of elastic extensions against the respective one of the iron cores.

Assignees

• Fanuc Corp

Inventors

• Tsukada Kenichi
• Shirouzu Masatomo

Classifications

• H01F3/14 Primary

  Constrictions; Gaps, e.g. air-gaps (in magnetic shunt paths H01F3/12) · CPC title

• H01F27/33

  Arrangements for noise damping · CPC title

• H01F27/24

  Magnetic cores · CPC title

• H01F27/306 Primary

  Fastening or mounting coils or windings on core, casing or other support · CPC title

• H01F30/00

  Fixed transformers not covered by group H01F19/00 · CPC title