Vehicle Carpet Ventilation for Battery Cooling Air Distribution

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Solution Overview

Problem

In vehicles with battery modules, the discharge of cooled air from the battery module is not effectively dispersed within the vehicle interior, potentially causing discomfort to occupants and inefficient heat management.

Innovation Solution

A vehicle design incorporating a floor panel, a battery module, an exhaust duct, and a carpet with ventilation holes, where the exhaust duct discharges cooled air through the space between the floor panel and the carpet, allowing the air to be dispersed into the vehicle interior through these holes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the exhaust duct directly discharges cooled air into the vehicle interior, then the heat management function is achieved, but the air flow is concentrated and causes discomfort to occupants

Engineering Contradiction:

Improvebattery cooling efficiencyVSAvoidoccupant discomfort from concentrated cold air flow

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The exhaust duct is divided into multiple discharge openings distributed across different locations. Instead of a single集中 discharge point, the cooled air is split into multiple streams that discharge at different positions, preventing concentrated cold air flow that causes occupant discomfort while maintaining effective battery cooling.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the exhaust duct are equipped with discharge openings tailored to local requirements. The discharge characteristics vary by location to optimize air distribution patterns, ensuring that cooled air is delivered where needed without creating uncomfortable concentrated flows in occupied spaces.

Inventive Principle:

Principle #3Local quality

2Ease of manufacture

If the exhaust duct is exposed on the floor panel, then the discharge function is simple, but the interior design and space utilization are compromised

Engineering Contradiction:

Improveexhaust duct installation simplicityVSAvoidinterior design and space appearance

Core Design Contradiction:

Ease of manufactureVSShape

Solution Approach 1:

The exhaust duct is integrated with the carpet assembly, merging the functional exhaust component with the interior trim element. The carpet serves dual purposes: as an interior finishing material and as a housing for the exhaust duct, concealing it from view while maintaining discharge functionality through openings in the carpet.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The carpet acts as an intermediary element that mediates between the exhaust duct and the vehicle interior. It provides a aesthetic cover for the duct while incorporating ventilation holes that allow cooled air discharge, thus hiding the functional component without compromising its performance.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Shape

If the carpet completely covers the exhaust duct, then the interior appearance is improved, but the cooled air discharge is blocked

Engineering Contradiction:

Improveinterior appearance and cleanlinessVSAvoidcooling air discharge efficiency

Core Design Contradiction:

ShapeVSProductivity

Solution Approach 1:

The carpet is designed with porous characteristics through the incorporation of ventilation holes distributed across its surface. These holes allow cooled air to pass through the carpet material itself, maintaining the aesthetic appearance of a complete carpet cover while ensuring effective discharge of cooling air to the interior space.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The carpet performs multiple functions simultaneously: it provides interior aesthetic coverage, houses the exhaust duct structure, and acts as a discharge medium for cooled air through its ventilation holes. This multi-functionality resolves the conflict between appearance and performance.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 solution allows for the dispersed exhaust of cooled air within the vehicle interior, enhancing occupant comfort and heat management by preventing direct discharge paths that could interfere with air conditioning systems and maintaining a spacious interior.

Implementation Method 1

exhaust duct discharges air that has cooled the battery module

Methodology Applied

Scientific EffectPressure differential: Pressure Gradient

Data Source

PatentUS10005336B2Vehicle

Publication Date: 2018.06.26 HONDA MOTOR CO LTD

AI summary

A vehicle includes a floor panel, a battery module, an exhaust duct, and a carpet. The battery module is disposed inside a vehicle interior. The exhaust duct is provided on the floor panel to discharge air output from the battery module through the exhaust duct. The carpet is disposed on the floor panel so as to cover the exhaust duct. The carpet has ventilation holes such that air discharged from the exhaust duct is to pass through a space between the floor panel and the carpet and to be discharged into the vehicle interior through ventilation holes.