Hidden Defroster Outlet Layout for Side Glass Anti-Fogging
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Solution Overview
Problem
Existing defroster structures for vehicles are aesthetically unpleasing due to visible outlets, which obstruct airflow towards the side glass, leading to poor design quality and potential discomfort for occupants.
Innovation Solution
The defroster outlet is positioned between the instrument panel and door panel, hidden from view, with a gap allowing airflow to reach the side glass without obstruction, utilizing concave shapes and Coanda effect to direct airflow uniformly across the glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the defroster outlet is positioned on the side surface of the instrument panel, then airflow can be directed toward the side glass, but the outlet becomes visible to occupants resulting in poor aesthetic appearance
Solution Approach 1:
The defroster outlet is repositioned from a conventional visible location to a hidden location within the gap between the instrument panel and door panel. This spatial reconfiguration in the width direction allows the outlet to remain functional while being concealed from occupant view, resolving the contradiction between anti-fogging performance and aesthetic appearance
Solution Approach 2:
The gap between the instrument panel and door panel serves as an intermediary space that houses the defroster outlet. This intermediate region allows airflow to pass through while being visually blocked by the door panel, enabling both functional and aesthetic requirements to be satisfied simultaneously
2Shape
If the outlet is hidden behind the door panel, then aesthetic appearance is improved, but airflow obstruction may occur
Solution Approach 1:
The gap between the instrument panel and door panel is specifically designed with appropriate dimensions to allow sufficient airflow passage. This localized optimization of the gap geometry ensures that while the outlet is concealed for aesthetic purposes, the airflow delivery function is maintained without obstruction
Data Source
AI summary
A defroster interior structure includes a defroster outlet blowing out air toward a side glass provided on a door of a vehicle. The door includes the side glass and a door panel provided below the side glass. The defroster outlet is disposed at a position where a side surface of an instrument panel and the door panel overlap each other in a vehicle width direction. The side surface and the door panel form a gap through which an airflow blown out from the defroster outlet flows toward the side glass.