On-board transformer of strong oil and air-cooled electric locomotive with oil circuit guide structure

Abstract

The invention provides a strong oil air-cooling electric locomotive mounted transformer with a novel oil way guiding structure and relates to a transformer. For improving heat dissipation capability and solving the problems of large size, heavy weight and high manufacturing cost and transportation cost of an existing transformer, the strong oil air-cooling electric locomotive mounted transformer comprises an oil tank, a horizontal transformer body arranged in the oil tank, an iron core column arranged in the transformer body, an oil outlet pipe arranged at the oil outlet of the oil tank and an oil inlet pipe arranged at the oil inlet of the oil tank, wherein an oil pump and a cooler are arranged between the oil outlet pipe and the oil inlet pipe, an oil baffle is arranged at the transformer body end part, located on one side of the oil inlet, in the oil tank and divides the oil tank into a hot oil zone and a cold oil zone, the hot oil zone is communicated with the oil outlet pipe, the cold oil zone is communicated with the oil inlet pipe, an oil hole for making the cooled oil in the oil cooling zone circulated to the hot oil zone is formed in the oil baffle, and the iron core column is sleeved with the oil baffle. By the adoption of the technical scheme, the oil baffle is arranged at the reasonable position in the oil tank, the heat dissipation capability of the transformer is effectively improved, the volume and weight of the transformer are reduced, and the reliability of safe operation of the transformer is improved.

Description

technical field [0001] The invention relates to a transformer, in particular to a vehicle-mounted transformer for a strong oil air-cooled electric locomotive with an oil path guiding structure. Background technique [0002] Under the circumstances of extreme shortage of energy resources and increasing environmental protection requirements, popularizing the use of electric traction locomotives is the main way to save resources, reduce pollution, and improve railway transportation capacity. Due to the installation inside the car body, the transformer is a horizontal installation structure, limited by space and other special factors, the on-board transformer of electric locomotive puts forward the requirements of light weight, miniaturization and low temperature rise, and the improvement of the transformer cooling oil circuit structure directly affects the whole The volume, weight and temperature rise of the transformer are problems. In order to improve the heat dissipation cap...

AI Technical Summary

Problems solved by technology

Since the transformer is installed inside the car body and the transformer is a horizontal installation structure, limited by space and other special factors, the on-board transformer of electric locomotive puts forward the requirements of light weight, miniaturization, and low temperature rise. The improvement of the structure of the transformer cooling oil circuit directly affects the entire The volume, weight and temperature rise of the transformer, etc., in order to improve the heat dissipation capacity, the current transformer is large in size and heavy in weight, and the manufacturing cost and transportation cost are high

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