Transformer coil with low eddy current loss

Abstract

The invention provides a transformer coil with low eddy current loss, and belongs to the field of transformers. The low eddy current loss transformer coil includes a coil body section, a coil first end section, and a coil second end section. The coil main body section is formed by winding a main wire. The coil first end section is located at one end of the coil main body section and is formed by winding a first wire, and the first wire is conductively connected with the main wire. The coil second end section is located at one end, far away from the coil first end section, of the coil main bodysection, the coil second end section is formed by winding a second wire, and the second wire is conductively connected with the main wire. The ratio of the axial width to the radial thickness of thefirst wire section and the ratio of the axial width to the radial thickness of the second wire section are both smaller than the ratio of the axial width to the radial thickness of the main wire section. According to the low-eddy-current-loss transformer coil, the ratios of the axial width to the radial thickness of the cross section of the first wire to the cross section of the second wire are reduced, so that the overall eddy current loss is reduced.

Description

technical field [0001] The invention belongs to the technical field of transformers, and more specifically relates to a transformer coil with low eddy current loss. Background technique [0002] The coil is the core component of the transformer, which can transmit electric energy through magnetic coupling, and at the same time transform the required voltage to realize the basic function of the transformer. [0003] When the transformer is working, a magnetic field is induced in the coil flowing through the current, the leakage flux passes through the coil and induces eddy current in the coil, and eddy current loss is generated in the coil. The eddy current loss of the coil occupies a certain proportion of the load loss of the transformer. On the premise that the transformer core, insulation and other components are basically fixed, it is very meaningful to reduce the eddy current loss of the transformer coil and reduce the amount of wire used in the transformer coil. Now i...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a transformer coil with low eddy current loss, so as to solve the problem existing in the prior art that the wire with the ratio of axial width and radial thickness is selected as large as possible to wind the coil, which can only reduce the eddy current loss to a limited extent. , it is difficult to further reduce the technical problem of eddy current loss

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