Vehicle Air Vent Wing Structure for Hidden Air-Leak Sealing

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Solution Overview

Problem

Conventional air vent apparatuses for vehicles suffer from reduced wind resistance, air leaks, and unsatisfactory design due to exposed spacers and gaps between front wings, affecting performance and appearance.

Innovation Solution

An air vent apparatus with a duct housing having a stepped structure and internal spacers that overlap and are not externally exposed, utilizing a rear and front stepped portion to prevent air leaks and enhance performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If spacers are exposed externally to block air leaks, then air sealing is improved, but appearance and wind resistance deteriorate

Engineering Contradiction:

Improveair sealingVSAvoidappearance

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The spacer is nested within the duct housing structure, specifically positioned in a groove formed by the first and second stepped portions. This nesting approach allows the spacer to remain functional for air sealing while being hidden from external view, thus improving appearance without compromising air sealing performance.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The stepped portions of the duct housing act as intermediary structures that both support the spacer and conceal it from external view. The first stepped portion provides a seating surface for the spacer, while the second stepped portion covers the spacer from the front, serving as a mediator between the functional requirement of air sealing and the aesthetic requirement of hidden spacers.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If spacers are exposed externally to block air leaks, then air sealing is improved, but wind resistance deteriorates

Engineering Contradiction:

Improveair sealingVSAvoidwind resistance

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #7Nested doll (Nesting)

3Productivity

If front wings are arranged with gaps to allow air flow, then air circulation is improved, but air leaks worsen

Engineering Contradiction:

Improveair circulationVSAvoidair leak prevention

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The spacer is extracted as a separate component from the front wing assembly and positioned independently within the duct housing. This extracted spacer specifically targets the air leak problem at the wing edges without interfering with the air circulation function of the front wings, allowing both functions to operate optimally.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The spacer acts as an intermediary element between the front wings and the duct housing, filling the gaps at the edges where air leaks occur while allowing the front wings to maintain their circulation function. The stepped portions of the housing serve as intermediaries to position and support the spacer effectively.

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The apparatus improves wind direction and reduces noise by leveraging the Coanda effect, ensuring spacers are not externally visible while maintaining effective air sealing.

Implementation Method 1

a spacer interposed between the duct housing and the front wing to block an air leak into the interior of the vehicle when the front wings overlap each other

Methodology Applied

Scientific EffectPhysical barrier blocking:

Implementation Method 2

The apparatus improves wind direction and reduces noise by leveraging the Coanda effect

Methodology Applied

Scientific EffectCoanda effect: Coanda Effect

Data Source

PatentUS12583291B2Air vent apparatus for vehicle

Publication Date: 2026.03.24 HYUNDAI MOBIS CO LTD

AI summary

Provided is an air vent apparatus for a vehicle configured to discharge air into the interior of the vehicle according to one embodiment of the present disclosure including a duct housing having a vent hole located in an air discharge path, a front wing configured to open and close the vent hole of the duct housing, and having a structure in which a plurality of wings overlap each other when adjusted to be closed, and a spacer interposed between the duct housing and the front wing to block an air leak into the interior of the vehicle when the front wings overlap each other.