Rail vehicle and air inlet device thereof

Abstract

The invention discloses an air inlet device of a rail vehicle. The air inlet device comprises an air inlet duct main body. End part air inlets are formed in the two ends of the air inlet duct main body, guide plates are arranged in the air inlet duct main body, locking mechanisms are arranged on the side edges of the guide plates, limiting steps and unlocking air ducts are arranged on the lateralsides of the air inlet duct main body, the end part air inlet in the front end communicates to the air inlet of an air conditioner when a vehicle moves forward, the locking mechanisms lean against thelimiting steps to fix the positions of the guide plates when the vehicle moves forward normally, and an air flow enters from the unlocking air ducts to push the locking mechanisms to be separated from the limiting steps when the heading direction of the vehicle is turned. A phenomenon that air cannot enter or the air inlet quantity of the air inlet device is small as a result of a negative pressure formed near the surface when the vehicle travels is overcome effectively, and the air inlet quantity is guaranteed, so that the ventilating and cooling effect of a ventilating system of the air conditioner is guaranteed. Meanwhile, the positions of the guide plates are locked by means of the locking mechanisms and the guide plates are unlocked through the unlocking air ducts by means of the airflow. The invention also discloses the rail vehicle comprising the air inlet device.

Description

technical field [0001] The invention relates to the field of rail vehicles, in particular to an air intake device for rail vehicles. Furthermore, the invention also relates to a rail vehicle comprising the above-mentioned air intake device. Background technique [0002] At present, rail vehicles are equipped with air-conditioning systems to achieve ventilation in the vehicle interior and improve comfort and safety. The air-conditioning system needs to be equipped with an air intake device for the entry of outside air. At present, the air intake device of a rail vehicle is usually installed on the surface of the vehicle, such as the roof, the side wall of the car body, and the side suspension beam. [0003] The air inlet of the existing air intake device is usually located on the upper surface of the device. When the vehicle is running, the air flow rate on the upper surface is faster, thereby generating negative pressure, and as the vehicle running speed increases, the nega...

AI Technical Summary

Problems solved by technology

[0003] The air inlet of the existing air intake device is usually located on the upper surface of the device. When the vehicle is running, the air flow rate on the upper surface is faster, thereby generating a negative pressure, and as the speed of the vehicle increases, the negative pressure difference will continue Increase, the existence of negative pressure difference causes the air volume entering the air inlet device from the air inlet on the upper surface to decrease

The instability of the air intake will directly affect the cooling effect of the air conditioning and ventilation system, thus affecting the working status of the components in the vehicle that need ventilation and cooling, and affecting the operation safety of the vehicle

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