CN2515777Y

CN2515777Y - Winding iron core for amorphous alloy transformer

Info

Publication number: CN2515777Y
Application number: CN 01274212
Authority: CN
Inventors: 陈叔涛; 周礼震; 施闻博
Original assignee: Shanghai Zhixin Electric Co Ltd
Current assignee: Shanghai Zhixin Electric Co Ltd
Priority date: 2001-12-14
Filing date: 2001-12-14
Publication date: 2002-10-09
Anticipated expiration: 2011-12-14

Abstract

The utility model relates to a winding iron core of an amorphous alloy transformer and is composed of iron yokes and several core poles. The device is characterized in that the core poles in a tridimensional arrangement are structured by single-frame iron cores with cross section in same shape nearly like hemicycle section, and the outline of the hemicyle section is connected by several broken lines toward the cycle arc, enabling the cross section of each of constituted core poles in the shape of a cycle. With such a technical proposal, the utility model has the advantages that firstly, the raw materials are saved, for example, the core poles made of amorphous alloy and arranged in a tridimensional and equidistance triangular matrix can save 10% of the materials used in the production of the current iron cores; secondly, consumption of energy sources is reduced, as the iron core materials are used less, correspondingly, the iron core loss can be reduced by about 10 percent to reduce the consumption the energy sources so as to reduce the fuel pollution in the atmospheric emissions.

Description

A kind of takeup type iron core of amorphous alloy transformer

(1) technical field

The utility model relates to a kind of takeup type iron core of amorphous alloy transformer.

(2) background technology

Distribution transformer adopts the folded system of cold-reduced silicon sheet to form with iron core basically at present, laminated core structure is owing to exist air-gap in the magnetic circuit, defective tightness between the silicon steel sheet, but also exist the high magnetic conduction direction of local area material and the magnetic circuit direction inconsistent, not only no-load loss is big to make iron core, and poor-performing.Therefore existing a kind of takeup type iron core is by two little volume iron cores, and big volume iron core of overcoat is made three-limb core, though overcome the above-mentioned shortcoming of laminated core structure, makes the transformer noload losses of manufacturing low, noise is low, and performance is significantly improved.But the arrangement mode of iron core stem stem is owing to the planar alignment that adopts, and the length of magnetic path that has formed each stem stem is inconsistent, has not only saved material for the stem stem that magnetic circuit is short, and has reduced loss.And for the long stem stem waste material of magnetic circuit, and poor performance.

(3) utility model content

The purpose of this utility model is to provide a kind of above-mentioned defective that overcomes, more excellent performance, the takeup type iron core of the amorphous alloy transformer that cost is lower.

The takeup type iron core of a kind of amorphous alloy transformer provided by the utility model, it is combined by iron yoke and some stem stems, be characterized in, described stem stem is three-dimensional and arranges, and the single frame iron core that is approached semi-circular cross-section by the identical cross section of several shapes is put together, and the outer contour of this semi-circular cross-section is formed by connecting for the some broken lines that approach to circular arc, and each stem stem cross section is approaching circular after making amalgamation.

The takeup type iron core of above-mentioned amorphous alloy transformer, the quantity of stem stem are more than 3 or 3, and when the quantity of stem stem was 3, stem stem can be three-dimensional equidistant triangle battle array and arrange.

The takeup type iron core of above-mentioned amorphous alloy transformer, single frame iron core be by the amorphous alloy film of some grades of different in width from inside to outside coiling form.

Owing to adopted above-mentioned technical solution, the utlity model has following advantage: 1) save material, for example, the stem stem that adopts non-crystaline amorphous metal to make is three-dimensional equidistant triangle battle array to be arranged, and can save 10% than the materials of the iron core of present production.If with a 10kV level 400kVA transformer, structural design originally need be with 600 kilograms of non-crystaline amorphous metals, and novel structure is 540 kilograms of materials only, can save 2160 yuan of RMB, account for about 5% of a transformer cost.2) energy efficient, because few usefulness of core material, its corresponding core loss also can reduce about 10%.Cut down the consumption of energy and to reduce the pollution of fuel airborne release.

(4) description of drawings

Fig. 1 is the vertical view of the iron core of the utility model embodiment;

Fig. 2 is the iron core front view of the utility model embodiment;

Fig. 3 is the stem stem cross section of the utility model embodiment.

(5) embodiment

As Figure 1-3, the utility model, i.e. the takeup type iron core 1 of amorphous alloy transformer, stem stem are three-dimensional to be arranged, and the single frame iron core 2 that approaches semicircle by 3 identical cross sections of shape is put together, and after making amalgamation stem stem cross section 3 near circular.

The outer contour of the stem stem cross section of single frame be some broken lines 31 be formed by connecting near semicircular arc, inner outline is a diameter line 32.

Single frame iron core 2 be by the amorphous alloy film of some grades of different in width from inside to outside coiling form.

The utility model is because iron core is that the non-crystaline amorphous metal sheet rolls continuously, do not cut-off, there is not interface, the lead winding is on the circular iron core post, more can save no-load loss and the materials of saving non-crystaline amorphous metal than the amorphous transformer of supplying on the existing market, be a product of saving iron core raw material and electric energy loss.

Roll into the iron core of this class, need special purpose machine tool, need colligation, clamping and annealing after iron core is spooled.

Claims

1. the takeup type iron core of an amorphous alloy transformer, it is combined by iron yoke and some stem stems, it is characterized in that, described stem stem is three-dimensional and arranges, and the single frame iron core that is approached semi-circular cross-section by the identical cross section of several shapes is put together, and the outer contour of this semi-circular cross-section is formed by connecting for the some broken lines that approach to circular arc, and each stem stem cross section is approaching circular after making amalgamation.

2. the takeup type iron core of a kind of amorphous alloy transformer according to claim 1 is characterized in that, the quantity of described stem stem is more than 3 or 3, and when the quantity of stem stem was 3, stem stem can be three-dimensional equidistant triangle battle array and arrange.

3. the takeup type iron core of a kind of amorphous alloy transformer according to claim 1 is characterized in that, described single frame iron core be by the amorphous alloy film of some grades of different in width from inside to outside coiling form.