Multi-module multi-winding high-frequency transformer assembly with ventilation cooling structure and system

Abstract

The invention discloses a multi-module multi-winding high-frequency transformer assembly with a ventilation cooling structure and a system. An auxiliary mechanical supporting structure is arranged inan external insulating sleeve; two cooling fans are arranged at the bottom and the top of the interior of the external insulating sleeve respectively; and multi-winding high-frequency transformers are arranged on the auxiliary mechanical supporting structure. The auxiliary mechanical supporting structure comprises a plurality of layers of symmetrical three-column mechanical structures, wherein the number of the layers is determined by the number of the multi-winding high-frequency transformers. According to the invention, a plurality of multi-winding transformers and ventilation cooling are integrated, so that the problems of modular design and integrated manufacturing are solved; for the multi-module multi-winding high-frequency transformer assembly, the key problems of device integration, lead insulation and external circuit connection interfaces, ventilation and heat dissipation and the like are solved, the cooling effect is improved, and the system size is reduced. The fans are arranged at the bottom and the top, and the air volume is fully utilized in the external insulating sleeve, so that the problem of coil loss increase caused by a diffusion magnetic field due to a magnetic core air gap of the high-frequency transformer is solved.

Description

technical field [0001] The invention relates to the technical field of high-frequency transformers, in particular to a multi-module multi-winding high-frequency transformer assembly and system with a ventilation cooling structure. Background technique [0002] Power transformers are one of the main equipment in power plants and substations. The role of the transformer is multifaceted. It can not only increase the voltage to send electric energy to the power consumption area, but also reduce the voltage to the voltage of all levels to meet the needs of power consumption. In short, both step-up and step-down must be done by the transformer. In the process of electric energy transmission in the power system, two parts of voltage and power will inevitably be lost. When the same power is transmitted, the voltage loss is inversely proportional to the voltage, and the power loss is inversely proportional to the square of the voltage. Using the transformer to increase the voltage ...

AI Technical Summary

Problems solved by technology

The heat load of high-frequency transformer loss is high, and heat dissipation is difficult, which makes the spatial arrangement and ventilation and cooling structure design of several high-frequency transformers per phase difficult

[0004] Therefore, how to solve the spatial arrangement and heat dissipation problems of many high-frequency transformers is a technical difficulty in this field. At present, there is no description or report of a similar technology to the present invention, and no similar information has been collected at home and abroad.

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