Electronic transformer

Abstract

The invention discloses an electronic transformer, comprising a framework, a coil and a magnetic core group; wherein the framework is in a horizontal H shape, and a run-through hole is arranged at the center of the top surface of the framework; the framework is provided with a ring-shaped groove for winding the coil; symmetrical separation blades are arranged at the top and bottom surfaces of the framework; the magnetic core group comprises two magnetic cores which are buckled together in a dome shape, and a space for containing the framework and the coil is arranged between the magnetic cores; a V-shaped cut, corresponding to the separation blades, is arranged on the magnetic core for mutual location with the separation blades; a column part adaptive to the run-through hole is arranged at the center of the magnetic core. The electronic transformer provided by the invention adopts the horizontal H shaped framework, so as to reduce the volume of the transformer and realize microminiaturization of the electronic transformer; in addition, the dome-shaped magnetic core of a cylinder is arranged at the center, the opening of the magnetic core is small, so as to lead the leakage inductance of the transformer to be small and reduce the magnetism loss of the transformer.

Description

technical field [0001] The invention relates to a transformer, in particular to an improvement on the structure of an electronic transformer. Background technique [0002] A transformer is a commonly used electronic component that is primarily used to step up or down voltage on a circuit. Traditional electronic transformers such as figure 1 , figure 2 As shown, a bobbin 110 , a coil 120 , a magnetic core set 130 and pins 140 are included. The skeleton 110 is generally rectangular, and a through hole 150 is disposed in the center thereof. The magnetic core group 130 generally consists of a plurality of magnetic cores, and is inserted into the through hole 150 . After the leads of the coil 120 are soldered to the corresponding pins 140, they can be electrically connected to the circuit board. [0003] The magnetic core group in the prior art is generally E-shaped, such as figure 2 , image 3 As shown, when the magnetic core group 130 is inserted into the bobbin 110, t...

AI Technical Summary

Problems solved by technology

Since the end face of the skeleton 110 is generally rectangular, this makes the volume of the transformer large. When the transformer is plugged into the circuit board, it occupies a large area of ​​the circuit board and does not take advantage of the miniaturization of electronic products.

At the same time, in the prior art, the opening of the magnetic core group 130 is relatively large, which makes the leakage inductance of the transformer large, the skin effect and the proximity effect are serious, and the magnetic core has problems such as local overheating, which shortens the service life of the transformer.

[0004] Therefore, the structure of the existing transformer still needs to be improved and improved.

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