Preparation method of magnetic core of open-type mutual inductor and shaping outer mold structure applied by the same

Abstract

The invention provides a preparation method of a magnetic core of an open-type mutual inductor. The preparation method comprises the following steps of: S1, carrying out heat treatment on a prepared magnetic core base block; S2, subjecting the magnetic core base block obtained through heat treatment to paint dipping treatment; S3, performing baking curing treatment on the magnetic core base block obtained through paint dipping treatment; and S4, cutting the magnetic core base block obtained through baking curing treatment to obtain two semi-annular mutual inductor magnetic core blocks; wherein in the baking treatment process of S3, the magnetic core base block obtained through paint dipping treatment is subjected to molding treatment, and the molding treatment process includes: continuously applying a molding pressure facing inwards in the radial direction to the peripheral side of the magnetic core base block; through the arrangement of the preparation method of the magnetic core of the open-type mutual inductor, based on molding application of the magnetic core of the mutual inductor, it can be ensured that the end face of the magnetic core is smooth, and the open-type mutual inductor prepared from the magnetic core has the beneficial effect of being stable in assembly.

Description

technical field [0001] The invention relates to the technical field of processing and manufacturing transformers, in particular to a method for preparing a magnetic core of an open transformer and a shaped outer mold structure for its application. Background technique [0002] In the past, the magnetic cores of open-type transformers were produced by means of internal mold setting, which could not effectively guarantee the outer circle size of the magnetic cores, and could not deal with the problem of cracks on the end faces of the magnetic cores (such as Figure 5 As shown), it will make it difficult for the magnetic core to cooperate with the protective box or other fixtures in the subsequent assembly, and it will also affect the material properties of the open transformer. Contents of the invention [0003] The object of the present invention is to provide a magnetic core preparation method of an open transformer and a shaped outer mold structure for its application in o...

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Problems solved by technology

[0002] In the past, the magnetic cores of open-type transformers were produced by means of internal mold setting, which could not effectively guarantee the outer circle size of the magnetic cores, and could not deal with the problem of cracks on the end faces of the magnetic cores (such as Figure 5 As shown), it will make it difficult for the magnetic core to cooperate with the protective box or other fixtures in the subsequent assembly, and it will also affect the material properties of the open transformer

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