Automobile defrosting air duct assembly

By designing a variable cross-section structure and inclined guide vanes for automotive defrosting air duct components, the problems of insufficient airflow and uneven defrosting in traditional defrosting air duct components are solved, achieving a uniform defrosting effect on the windshield.

CN224447403UActive Publication Date: 2026-07-03WUHU XINQUAN AUTOMOTIVE TRIM SYST CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU XINQUAN AUTOMOTIVE TRIM SYST CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional automotive defrosting duct components have insufficient airflow at the end, causing the defrosting speed in the center of the windshield to be faster than in the side edge areas, resulting in uneven defrosting.

Method used

Design an automotive defrosting air duct assembly, which adopts a front defrosting air duct with a variable cross-section structure and inclined guide vanes are set at intervals in the inner cavity. The guide vanes are located upstream of the windshield air outlet to guide the airflow. Combined with a detachable air duct side cover structure, it stabilizes the airflow distribution.

Benefits of technology

It achieves uniformity in windshield defrosting, improves the uniformity of airflow distribution, and solves the problems of insufficient airflow and uneven defrosting in traditional defrosting duct components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224447403U_ABST
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Abstract

The utility model discloses a kind of automobile defrosting air duct assemblies, it is related to the technical field of automotive interior, including front defrosting air duct and side defrosting air duct, the front defrosting air duct is set along automobile windshield glass lower horizontal extension, the front defrosting air duct has the air outlet facing windshield glass, one end of the side defrosting air duct is connected with automobile air conditioner side air outlet, the cross-sectional shape of the front defrosting air duct is variable cross-section structure along its length direction.The utility model since the cross-sectional shape of the front defrosting air duct is variable cross-section structure along its length direction, the inner cavity of the front defrosting air duct is spaced apart and provided with several flow guides, several The flow guide is located in the upstream of the air outlet of windshield glass, the plate face of the flow guide is inclined to set relative to the airflow direction of front defrosting air duct, to be used for guiding airflow to the air outlet of windshield glass and automobile air conditioner side air outlet, the problem of traditional defrosting air duct assembly two ends air volume shortage and defrosting uneven can be solved.
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