Traction motor test air duct and test method

By designing a test air duct for the traction motor and optimizing the duct resistance and airflow distribution, the problems of high duct resistance and uneven airflow in the existing technology were solved. This resulted in low resistance and uniform airflow distribution in the duct structure, determined suitable cooling fan parameters, and optimized fan selection and system efficiency.

CN116296479BActive Publication Date: 2026-07-14CRRC DALIAN INST CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CRRC DALIAN INST CO LTD
Filing Date
2023-03-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing traction motor cooling duct designs suffer from high duct resistance, high fan static pressure requirements, and uneven airflow. It is difficult to directly measure airflow through numerical simulation, which makes fan selection and duct optimization challenging.

Method used

Design a test air duct for traction motors, including a main air duct connection section, an air volume adjustment section, first and second traction motor air ducts, a guide section, and an inlet pressure measuring section. By adjusting the guide section and the air volume adjustment section, the air duct resistance and air volume distribution are optimized. Combined with the static pressure measured by the inlet pressure measuring section, the parameters of the appropriate cooling fan are determined.

Benefits of technology

It achieves reduced duct resistance, uniform airflow at the outlet, accurate measurement of static pressure, determination of suitable cooling fan parameters, optimization of fan selection, and reduction of system noise and auxiliary power consumption.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116296479B_ABST
    Figure CN116296479B_ABST
Patent Text Reader

Abstract

The application discloses a kind of traction motor test air duct and test method, can adjust the air volume of the outlet of first traction air duct and second traction air duct by air volume adjusting part, and the air duct resistance of first motor traction air duct is reduced by flow guide part, the air duct resistance of the traction motor air duct structure determined is low, the air volume of the outlet of two air ducts is uniform, and static pressure is obtained by inlet pressure measurement part, and suitable cooling fan can be selected according to static pressure and air volume.The test air duct includes: total air duct connecting part, air volume adjusting part, first traction motor air duct, second traction motor air duct, flow guide part and inlet pressure measurement part;Flow guide part is used to adjust the air duct resistance of the outlet side of first traction motor air duct, so that the air duct resistance of the outlet side of first traction motor air duct is minimum;Air volume adjusting part is used to make the outlet wind speed of first traction motor air duct and the outlet wind speed of second traction motor air duct less than air volume difference threshold value;Inlet pressure measurement air duct is used to obtain cooling fan outlet static pressure.
Need to check novelty before this filing date? Find Prior Art