Traction motor cooling system by end wall air intake

Abstract

The invention discloses a traction motor cooling system by end wall air intake. Air inlet ducts are provided inside or at an outer end of a rail vehicle body. Air inlets are disposed at the top of the end wall and far from dust accumulated and worse environmental bottom of the vehicle body, so as to ensure inhalation of new air containing less impurity and reduce regular cleaning of an air channel and filtering parts. The cooling system mainly consists of the air inlet duct provided at the external end wall of the vehicle body, an exhausting duct connected with an underframe of the vehicle body and a centrifugal blower fan connecting to the air inlet duct and the exhausting duct. Air outlets of the exhausting duct are positioned above a traction motor. The air inlet duct is an end wall air inlet duct arranged at the external end wall of the vehicle body. The air inlets are disposed at top of the end wall. Thus the invention mainly utilizes a mode of air intake from the end wall of the vehicle body.

Description

technical field [0001] The invention relates to a traction motor cooling system applied to rail vehicles, belonging to the field of machinery manufacturing. Background technique [0002] At present, rail vehicles such as urban light rail, subway and EMUs that have been put into operation in China generally use linear motors as the driving mode of traction power. [0003] After long-term use, the traction motor heats up quickly and reaches a higher temperature. In order to ensure the safety and stability of its function, it is necessary to configure a corresponding cooling system to implement cooling treatment to meet the actual performance parameters of the traction motor. need. [0004] In the cooling system of the existing traction motor, the air inlet is generally arranged near the bottom of the car body, so the air sucked contains more impurities, which cannot ensure the cleanness of the air source, and will affect the normal use of the traction motor. Moreover, it is ...

AI Technical Summary

Problems solved by technology

[0004]The cooling system of the existing traction motor generally sets the air inlet near the bottom of the car body, so the air sucked contains more impurities and cannot To ensure the cleanness of the air source will affect the normal use of the traction motor

Moreover, it is also necessary to regularly clean the air duct and replace the filter screen and other components, which is time-consuming and labor-intensive.

[0005]In addition, part of the air ducts of the existing cooling system are connected to the pipeline inside the vehicle, which brings certain difficulties to the design and assembly of the vehicle body structure

The resulting working noise will affect the rest of the passengers in the car, which will bring discomfort to the ride

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