Vehicle Front-End Airflow Structure for Battery Cooling and Headlight Venting

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Solution Overview

Problem

Current front end structures of motor vehicles lack efficient airflow management and temperature control for battery compartments and headlights, leading to potential battery inefficiency and headlight fogging.

Innovation Solution

The proposed front end structure includes a housing with integrated air passages and a fan assembly that provides controlled airflow to both the battery compartment and headlights, utilizing a flow actuator and moisture-permeable elements to maintain optimal temperatures and prevent moisture accumulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional front end structures are used without integrated airflow management, then the structure is simpler, but battery temperature control and headlight moisture prevention are insufficient

Engineering Contradiction:
Improvebattery temperature controlVSAvoidfront end structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the battery compartment, headlight assembly, air intake system, and cooling airflow management into a single integrated front end module. This merging of previously separate components into one unified structure enables coordinated temperature control for the battery and moisture prevention for the headlights through shared airflow passages, resolving the contradiction by achieving improved reliability through integration while managing complexity through unified design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated front end structure performs multiple functions simultaneously: it provides airflow to the battery for temperature control, directs airflow through headlights to prevent fogging, supplies air to the engine intake, and manages cooling for multiple components. This multi-functionality allows the single structure to address multiple thermal and moisture management needs, improving reliability across different systems without requiring separate dedicated structures for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Quantity of substance

If larger batteries are used, then energy storage capacity increases, but vehicle weight and space requirements increase

Engineering Contradiction:
Improveenergy storage capacityVSAvoidbattery weight
Core Design Contradiction:
Quantity of substanceVSWeight of moving object

Solution Approach 1:

The integrated airflow management system enables the use of advanced battery technologies like Lithium-Ion by providing precise temperature control through controlled airflow passages. This parameter control (temperature management) allows higher energy density batteries to be used effectively, as these batteries can maintain optimal performance and safety within controlled temperature ranges, thereby increasing energy storage capacity while reducing weight compared to traditional battery systems that require oversized cooling infrastructure.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If airflow passages are added to prevent headlight fogging, then moisture control improves, but structural complexity increases

Engineering Contradiction:
Improveheadlight foggingVSAvoidair passage system complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent integrates the headlight airflow passages with the battery cooling passages and engine air intake system into a unified front end module. The same fan assembly and housing structure that manage battery temperature also provide airflow through the headlights to prevent fogging. This merging eliminates the need for separate dedicated fogging prevention systems, thereby improving moisture control while avoiding additional structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

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

This solution enables the use of smaller, lighter batteries like Lithium-Ion batteries and prevents headlight fogging by maintaining optimal temperature ranges and actively removing moisture, enhancing vehicle efficiency and performance.

Implementation Method 1

a fan assembly mounted within the fan shroud portion

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

the inner wall includes a moisture permeable portion that moisture from within the inner cavity to pass into the headlight air passage

Methodology Applied
Scientific EffectPermeation: Permeation

Implementation Method 3

a portion of the headlight air passage is in thermal communication with the radiator for heating airflow through the headlight air passage

Methodology Applied
Scientific EffectThermal Conduction: Conduction (thermal)

Data Source

PatentUS11872907B2Structural battery and headlamp cooling
Publication Date: 2024.01.16 FORD GLOBAL TECH LLC
  • US11872907B2 patent drawing
  • US11872907B2 patent drawing
  • US11872907B2 patent drawing

AI summary

A front end structure of a vehicle is disclosed and includes a housing having a fluid reservoir portion, a fan shroud portion, a back face, a bolster portion, a first air passage communicating airflow to an air intake system, and a second air passage in communication with a higher pressure airflow. A fan assembly is mounted within the fan shroud portion and a radiator mounted to the back face of the housing. A battery compartment is in communication with airflow from the second air passage for maintain battery temperature within a predefined range. A headlight also receives an airflow to actively remove moisture from an inner cavity. A method of assembling a front end structure is also disclosed.