Hitachi Industrial Equipment Systems Co., Ltd.

Ryosuke Mikoshiba

Toshiaki Takahashi

Manabu Dohi

Kenji Nakanoue

Tooru Honma

Hiroyuki Endo

Kenichi Souma

Toshiki Shirahata

Tatsunori Sato

Kazuyuki Fukui

Miki Yamazaki

Makoto Shinohara

Hiroyuki Endou

Eisuke Maruyama

Masanao Kuwabara

Hidemasa Yamaguchi

Tatsuhito Azegami

Yuuji Satou

Kouhei Satou

Toru Homma

Homma Toru

Transformer housing

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

During the assembly process of an amorphous core transformer, when an offset has arisen between a coil and the amorphous core, and when an offset has arisen between the coil and the core due to a shock resulting from unloading or vibrations during transport, there has been the risk of breakage of an insulating member between an amorphous core and a coil, causing amorphous fragments to be scattered. The object of the present invention is to prevent scattering of amorphous fragments. The amorphous core transformer, which results from assembling a coil and an amorphous core having a joint section, is characterized by folding an insulating member having a rectangular cylinder and flanges, inserting the folded insulating member into the hole of the coil, expanding the cylinder and the flanges of the insulating member, disconnecting the joint section of the amorphous core, inserting the open-ended amorphous core into the cylinder of the insulating member placed within the coil, lapping the disconnected joint section of the amorphous core, and covering/wrapping yokes of the amorphous core with the flanges of the insulating member.

Amorphous core transformer

An amorphous core transformer is provided which is capable of effectively suppressing influences, fluctuation, displacement or the like of a coil caused by an electromagnetic mechanical force or the like. In an amorphous core transformerincluding an amorphous core, a plurality of coilsin which the amorphous coreis inserted and a fixing metal framethat assembles the coilsand the amorphous core, the inter-coil memberis interposed between the neighboring coilsand the inter-coil memberis positioned and held by a positioning member. Thus, it is possible to prevent the coilsfrom being deformed or displaced beyond the inter-coil memberand maintain the shape of the coils

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

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Shibata, Japan

Ryosuke Mikoshiba