High-frequency switch transformer

Abstract

The invention relates to a high-frequency switch transformer which comprises a bracket, a first connecting drum, a second connecting drum, an annular drum-shaped magnetic core and a plurality of support components, wherein a first lateral plate and a second lateral plate are vertically arranged on the bracket; the first connecting drum is inserted into the second connecting drum; the annular drum-shaped magnetic core is sleeved between the first connecting drum and the second connecting drum; radial clearances are left between the annular drum-shaped magnetic core and the first connecting drum as well as the second connecting drum; the first connecting drum and the second connecting drum are located between the first lateral plate and the second lateral plate and are both vertical to the first lateral plate; axial clearances are left between the annular drum-shaped magnetic core and the first lateral plate as well as the second lateral plate; the support components are arranged in the axial clearances; one end of each support component is fixed at one end of the annular drum-shaped magnetic core while the other end is fixed on the first lateral plate or the second lateral plate; the two ends of the first connecting drum and the two ends of the second connecting drum are respectively fixed on the support components on the two sides of the annular drum-shaped magnetic core. The size of the transformer with such a structure according to the invention is smaller than the size of the transformer with a traditional structure, and the transformer disclosed by the invention is light.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a high-frequency switching transformer. Background technique [0002] Switching transformers are widely used in various power supply fields due to their small size and light weight. The switching transformer in high-power high-voltage power supply works in high-voltage and high-power occasions. In addition to completing the basic functions of power transmission, it also needs to solve insulation and heat dissipation problems in a relatively small space. At present, in order to make full use of the performance of magnetic materials, the iron cores used in high-power high-frequency switching transformers are mostly uncut iron cores, and the winding form is threaded. [0003] In high-frequency switching transformers, the proportion of copper weight is very small, usually one tenth or less, and the weight of switching transformers is mostly determined by the iron core. [0004...

AI Technical Summary

Problems solved by technology

[0007] Small size and light weight are the characteristics of switching transformers, which can greatly reduce the size and weight of power supplies, but in high-voltage power supplies, the advantages of small switching transformers are limited by their insulation capabilities

For example, although increasing the operating frequency can reduce the cross-sectional area of ​​the iron core, the insulation space for insulation purposes cannot be reduced accordingly, so that even if the overall volume of the transformer is reduced, it is not obvious.

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