Internal-supporting amorphous alloy core

A technology of amorphous alloy and iron core, which is applied in the field of inner braced amorphous alloy iron core, can solve the problems of increased core loss and noise, increased transformer manufacturing cost, increased distance between low-voltage coils and iron core, etc., to avoid loss and noise, improve Short-circuit resistance and the effect of increasing adhesive strength

Inactive Publication Date: 2015-03-25
WUJIANG TRANSFORMER
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Problems solved by technology

Since the inner surface of the low-voltage coil is covered by the insulating cylinder, it is difficult for the low-voltage coil to dissipate heat. At the same time, the installation of the insulating cylinder increases the distance between the low-voltage coil and the iron core, and the cost of the insulating cylinder itself will increase the man

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  • Internal-supporting amorphous alloy core
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[0012] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.

[0013] Such as figure 1 with figure 2 As shown, an internally supported amorphous alloy iron core includes an iron core assembly with a low-voltage coil 1 surrounding the iron core assembly. The iron core assembly includes an amorphous alloy iron core 2 divided into upper and lower layers, wherein the upper layer The number of the amorphous alloy core 2 and the lower amorphous alloy core 2 are both two. The cross section of the amorphous alloy core 2 is rectangular, and the upper end faces of the two upper amorphous alloy cores 2 are provided with two upper layers. The epoxy adhesive layer 3 for bonding the amorphous alloy cores ...

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Abstract

The invention discloses an internal-supporting amorphous alloy core which comprises a core component, wherein a low-voltage coil is arranged around the periphery of the core component; the core component comprises amorphous alloy cores divided into upper and lower layers; each of the upper and lower layers comprises two amorphous alloy cores; epoxy adhesive layers are arranged on the upper end faces of the two amorphous alloy cores in the upper layer and the lower end faces of the two amorphous alloy cores in the lower layer respectively; an I-shaped support part is arranged between the two amorphous alloy cores in the upper layer and the two amorphous alloy cores in the lower layer, and is adhered together with the amorphous alloy cores respectively; insulating plates are arranged between the left and right ends of the I-shaped support part and the low-voltage coil. According to the internal-supporting amorphous alloy core, the low-voltage coil can be effectively supported, and the short-circuit resistance of the low-voltage coil can be improved; meanwhile, pressure on the low-voltage coil is prevented from directly acting on the amorphous alloy core, so that the loss of the amorphous alloy core and the increase of noise are avoided.

Description

technical field [0001] The invention relates to the technical field of amorphous alloy iron cores, in particular to an inner support type amorphous alloy iron core. Background technique [0002] Amorphous alloy iron core is the core component of amorphous alloy dry-type transformer, its loss is only 25-30% of that of silicon steel sheet, and the energy saving effect is remarkable. But at the same time its wear is pressure sensitive and cannot withstand higher pressures. Amorphous alloy dry-type transformer cores are usually composed of smaller cores bonded by epoxy adhesive, with a rectangular cross-section. Therefore, its high and low voltage coils must also be rectangular. When a short-circuit fault occurs in the transformer, a large electromotive force is generated, which puts pressure on the low-voltage coil close to the iron core. Since the low-voltage coil is a rectangle, its long side has poor bending strength, and the effect of pressure will cause the long side ...

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Application Information

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IPC IPC(8): H01F27/24H01F1/153
Inventor 张新根
Owner WUJIANG TRANSFORMER
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