Hitachi Industrial Equipment Systems Co., Ltd.

Tooru Honma

Toshiaki Takahashi

Kazuyuki Fukui

Ryosuke Mikoshiba

Kenji Nakanoue

Makoto Shinohara

Hiroyuki Endou

Hidemasa Yamaguchi

Hiroyuki Endo

Manabu Dohi

Toshiki Shirahata

Masao Hosokawa

Kouji Yamashita

Masanao Kuwabara

Tatsuhito Azegami

Kouhei Satou

Youji Matsuda

Kazuo Nishiyama

Yuuji Satou

Hidemasu Yamaguchi

Disclosed is a wound iron core () for a static apparatus in which magnetic paths in the inside of the wound iron core are subdivided to improve iron core characteristics. The iron core () is configured by using two or more kinds of magnetic materials (to) with different magnetic permeabilities to form laminated blocks with single plates or a plurality of laminated plates and by alternately arranging the laminated blocks with different magnetic permeabilities from the inner circumference. An iron core material () with large magnetic permeability out of iron core materials with different magnetic permeabilities is arranged on the inner circumference side. Further, when the iron core materials with different magnetic permeabilities are alternately arranged, the iron core materials () with the same magnetic permeability are configured to gradually change in thickness to ease an excessive magnetic flux density distribution in the iron core. A ring-shaped iron core is configured such that a plurality of block-like laminated members, which are each formed by laminating a plurality of strip-like amorphous material thin plates, are laminated and formed into a ring shape and a sheet-like non-magnetic insulation material is arranged between the n-th (n: an integer of two or more) layer of the ring-shaped block-like laminated members from the most inner circumference side and the (n+1)-th layer of the ring-shaped block-like laminated members from the most inner circumference side.

Wound iron core for static apparatus, amorphous transformer and coil winding frame for transformer

An amorphous transformer which includes an amorphous core formed of an amorphous material with a lap provided at an upper portion and allowed to stand in substantially a vertical direction while being supported at a core support member, and a coil which is fitted with the amorphous core. The core support member is formed by integrating a core support member for supporting a side surface of the amorphous core and a corner support member for supporting a corner portion of the core. The core support member is provided in substantially a vertical direction along at least one of the side surfaces of the core.

Amorphous transformer

There is provided a joint structure of a wound iron core in which iron core characteristics can be enhanced by improving the distribution of magnetic flux within an iron core. A wound iron core is formed to provide a joining structure or a butt joining structure and a lap joining structure disposed in an appropriate arrangement in which the a margin of overlapping is more increased as being closer to an outer periphery from an inner periphery of the iron core, taking a distribution of magnetic flux density within the iron core into consideration.

Transformer

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Shibata, Japan

Tooru Honma