Radiator of converter device

Abstract

The invention relates to a converter device radiator and is a device for radiating heat of traction converter equipment of a low-speed rail transit motor train unit. The radiator comprises a circulating pipeline, a walking air radiator and a forced air radiator, wherein a circularly flowing cooling medium is arranged in the circulating pipeline, the walking air radiator is arranged on the circulating pipeline, the walking air radiator is constructed to be capable of utilizing walking air to radiate a cooling medium in the circulating pipeline when the train runs, the forced air radiator is arranged on the circulating pipeline, and the forced air radiator is constructed to be capable of opening forced air to dissipate heat of a cooling medium in the circulating pipeline, and the circulatingpipeline is in contact with each power module of the traction converter and exchanges heat with the power modules. The radiator is advantaged in that the walking air can be used for heat dissipationwhen the train runs, and heat dissipation can be carried out on the converter device when the train enters a station.

Description

technical field [0001] The invention relates to a radiator for a flow converter, which is used for heat dissipation of traction converter equipment in rail transit. Background technique [0002] For low-speed rail transit EMUs, subways or other rail transit vehicles, due to the small traction power, small module power loss, and small heat dissipation power of traction converters, the current cooling method of traction converters in this field tends to use walking Air-cooled heat dissipation replaces the existing forced air-cooled water circulation heat dissipation. Running air-cooled heat dissipation can meet the heat dissipation requirements of the train running, but when the train stops at the station, the traction converter device needs to continue to maintain the operation of the auxiliary load on the train, and the auxiliary circuit in the traction converter device needs to continue to run. Since there is no running wind to cool the traction converter, the water temper...

AI Technical Summary

Problems solved by technology

Running air-cooled heat dissipation can meet the heat dissipation requirements of the train running, but when the train stops at the station, the traction converter device needs to continue to maintain the operation of the auxiliary load on the train, and the auxiliary circuit in the traction converter device needs to continue to run. Since there is no running wind to cool the traction converter, the water temperature inside the converter will continue to rise, which cannot meet the heat dissipation requirements of the converter when the train enters the station

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