A kind of air duct air flow automatic diversion device for rail passenger car

Abstract

The invention relates to an automatic airflow distributing device of a railway vehicle air channel. The automatic airflow distributing device mainly comprises a framework, hot air guide blades, cold air guide blades and a connecting rod and gear combination transmission device, wherein the framework, the hot air guide blades and the cold air guide blades are made of hollow aluminum profile materials; two groups of hot air guide blades are located at two ends of the framework; one group of cold air guide blades are located between the two groups of hot air guide blades; the hot air guide blades and the cold air guide blades form 90-degree angles and are connected through plastic connecting pieces; and one group of hot air guide blades at one end of the framework are connected with the connecting rod and gear combination transmission device through blade connecting pieces on connecting shafts. The automatic airflow distributing device has the advantages that the adopted novel hollow aluminum profile air door blades have a certain rectification function on airflow; and meanwhile, by means of the connecting rod and gear combination transmission manner and the layout form of hot air channels on two sides and a cold air channel in the middle, the closing gaps of the blades are smaller than 0.15 mm after the blades are closed, and the discharge rate of cold and hot air is lower than 5%.

Description

technical field [0001] The invention relates to an automatic airflow diversion device, in particular to an airflow diversion device for an air duct of a rail passenger car. Background technique [0002] At present, domestic high-speed trains are developing rapidly. While pursuing high speed, high-speed train manufacturers pay more attention to ride comfort. Therefore, the characteristics of the flow field of cold and hot air in the car body must be taken into consideration. The traditional high-speed train air supply system is divided into cold air and hot air ducts, and the air flow from the air conditioner enters different air duct piping systems through the distribution grille. However, the damper mechanism of domestic air ducts is too rough at present, and the hot and cold air crosses each other, resulting in the distribution of cold and hot air flow field in the passenger compartment area of ​​high-speed rail. In the existing technical solution, there is a large gap wh...

AI Technical Summary

Problems solved by technology

However, at present, the damper mechanism of the domestic air duct is too rough, and the hot and cold air crosses each other, resulting in the distribution of the hot and cold air flow field in the passenger compartment area of ​​the high-speed rail.

In the existing technical solution, there is a large gap when the blades of the air duct air distribution device are closed, causing close to the cold air to enter the warm air duct pipeline, and hot air to enter the cold air duct, and this part of the air flow cannot be controlled

In addition, the damper blades are ordinary sheet metal, which has a certain turbulent effect on the airflow, resulting in noise in the airflow and reducing the comfort of the high-speed rail ride

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