Transformer radial core column forming device

A forming device and radiation-type technology, applied in the manufacture of inductors/transformers/magnets, parts of transformers/inductors, electrical components, etc., can solve the problems of not being able to form a perfect circle, loose between sheets, electromagnetic noise, etc., and achieve improvement The effective magnetic cross section, the tightness between sheets are satisfied, and the effect of improving the lamination coefficient
CN103337358BActive Publication Date: 2015-09-02ZHEJIANG KESHENG ELECTRIC POWER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG KESHENG ELECTRIC POWER EQUIP
Publication Date
2015-09-02

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Abstract

The invention relates to a transformer radiant-type core limb forming device, which comprises a mold base, a plurality of mold cavity plates, two mold end plates and multiple sets of sheet pressing components. The mold base consists of two mold frames. The mold cavity plates and the two mold end plates are vertically and fixedly arranged at intervals along the length direction of the two mold frames. The middle part of each mold cavity plate is provided with a semicircular concave part. All semicircular parts form a semicircular mold cavity for receiving silicon steel sheet materials. The two mold end plates are respectively arranged on the end surfaces of the connecting ends of the two mold frames to form a baffle for the semicircular mold cavity. Two sets of sheet pressing components are respectively arranged at the tops of the two sides of each mold cavity plate. Not only can the device be used for fabricating core limbs with any specification, but also the produced core limb has the advantages that the lamination factor and the effective magnetic conducting section are high, the parallelism between all silicon steel sheet materials and radial magnetic force lines is good, the eddy-current loss is small, and the situation that electromagnetic noises are produced due to vibration among sheets can be avoided even though the product which is produced by using the device is influenced by alternating-current fundamental waves in alternating magnetic field application.
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Description

【Technical field】

[0001] The invention belongs to a forming device for a magnetically conductive core, in particular to a forming device for manufacturing a radial iron core column of a transformer. 【Background technique】

[0002] Among the three known transformer cores, the radial laminated core is opposite to the parallel laminated or involute laminated core. Due to its edge effect process, the direction of magnetic derivation is different from that of the silicon steel laminations. The directions are parallel, so it has the advantages of low eddy current loss, no local overheating and remarkable energy saving effect. Before the present invention was made, because there was no ideal molding device, it was impossible to produce radially conductive core column products for transformers, and only radial iron core cakes for power reactors came out.

[0003] figure 1 The cross-sectional structure of a radially conductive core cake is schematically drawn. The core cake is comp...

Claims

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