Water cooling device used for current transformator power module

Abstract

The invention relates to a water cooling device, in particular to a water cooling device which is used for a converter power module and solves the problem that the water cooling of the converter power module is not maturely applied to the existing locomotive AC transmission systems. The water cooling device comprises a heat-exchanging wind-cooling device, a water pump, a power module quick joint, and an expansion water tank; the heat-exchanging wind-cooling device comprises a supporting box body which is internally fixed with a cooling fan and a radiator; the water inlet pipe joint of the radiator is connected with the water outlet of the water pump by the power module quick joint; the water outlet pipe joint of the radiator is connected with the water pump water inlet; the expansion water tank and the water distributor of the water inlet of the water pump are connected with each other by a water pipe; meanwhile, the expansion water tank is connected with the water distributor which is fixed on the supporting box body by pipelines. The water cooling device solves the heat dissipation and cooling problem of the power module in the converter, improves the efficiency of the power module, and can carry out real-time protection by a pressure sensor and a temperature sensor.

Description

technical field [0001] The present invention relates to a cooling device, in particular to a water cooling device, in particular to a water cooling device for a converter power module. Background technique [0002] Converter is an important part of locomotive AC drive system. During the normal operation of the converter, the power module (including IGBT, diode and other semiconductor devices) in the converter will generate a certain amount of heat. If the heat cannot be dissipated in a timely and effective manner, the efficiency of the power module will be greatly reduced. , and even cause the converter not to work normally. At present, the cooling methods of converters mainly include natural cooling, forced air cooling, water cooling, oil cooling, boiling cooling and so on. The water cooling method has the characteristics of good cooling effect, but due to the complex structure and high sealing requirements of the water cooling method, it has not been maturely applied in ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the water cooling of the power module of the converter has not been maturely applied in the AC transmission system of the locomotive, the present invention provides a water cooling device for the power module of the converter

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