Improved structure of transformer iron core

Abstract

The invention relates to the technical field of transformers, in particular to an iron core improved structure of a transformer, comprising an iron core which takes the shape of 'theta' and an I-shaped iron core, bosses are respectively arranged on the surfaces of three parallel core rods on the iron core which takes the shape of 'theta', one surface of the iron core which takes the shape of 'theta' and provided with the bosses is contacted with the surface of the I-shaped iron core to form closed magnetic circuits; when the two iron cores are mutually contacted to form the closed magnetic circuits, four closed magnetic circuits can be formed at most, thereby increasing the leakage inductance; in addition, the surface of the iron core which takes the shape of 'theta' is provided with the bosses, when in application on the transformer, a bobbin bracket only needs to be provided with openings at the positions corresponding to the bosses, then the bosses of the iron core which takes the shape of 'theta' can be contacted with the I-shaped iron core through the openings; the use of the iron core improved structure can reduce the damage to the bobbin bracket, when the iron core improved structure is used in the transformer with the same size, the transformer can be firmer and has longer service life.

Description

Technical field: [0001] The invention relates to the technical field of transformers, in particular to an improved structure of a transformer iron core. Background technique: [0002] The structure of a transformer generally includes a winding frame, a coil and an iron core. The winding frame is hollow, and the coil is wound on the winding frame. It is divided into a primary coil and a secondary coil. The iron cores generally appear in pairs. The shape of the iron core There are "U" shape, "E" shape, "mouth" shape, and "I" shape. The "U" or "E" shape iron core is generally inserted into the hollow cavity of the winding frame from one left to the other. Contact each other to form a closed magnetic circuit; Figure 4 As shown, when the "口"-shaped iron core 101 and the "I"-shaped iron core 102 are used as a pair, the "I"-shaped iron core 102 is inserted into the hollow cavity of the bobbin 103, in order to make the "口"-shaped iron core 101 To be able to contact each other with...

AI Technical Summary

Problems solved by technology

When the "口"-shaped iron core 101 and the "I"-shaped iron core 102 are applied to the micro-transformer, the stability of the micro-transformer will be affected, because the overall structure of the transformer becomes smaller, and the volume of the bobbin 103 also becomes smaller. If one side of the winding frame 103 is also cut off, the stability of the winding frame 103 will be reduced, which will affect the stability of the entire transformer, making the microtransformer easily damaged when subjected to external force

In addition, the "口"-shaped iron core 101 and the "I"-shaped iron core 102 can only form two closed magnetic circuits at most, and the leakage inductance is not high enough.

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