Vehicle Cooling Module Flow Deflection Region Design

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Solution Overview

Problem

Standard drivetrain cooling modules for internal combustion engine vehicles are inadequate for electric vehicles due to increased pressure loss and lower temperature differences, requiring a design modification to enhance airflow and reduce pressure loss.

Innovation Solution

A cooling module with an axial fan and a cooling module casing that includes a flow deflection region with angled intake and outflow planes and ribbed housing stators to reduce rotation and enhance airflow directionality, minimizing pressure loss and increasing airflow efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a cooling module casing is used to enclose the axial fan and protect electrical components, then protection against moisture and water droplets is improved, but pressure loss increases

Engineering Contradiction:
Improveprotection against moistureVSAvoidpressure loss
Core Design Contradiction:
Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The cooling module casing is segmented into functional zones including a flow deflection region with intake plane, outflow plane, and rear wall. This segmentation allows optimized airflow paths that reduce pressure loss while maintaining protective enclosure functions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A flow deflection region acts as an intermediary space between the axial fan and the external environment. This region with its specific geometric configuration (intake plane at angle alpha >= 55° to outflow plane, rear wall at angle beta <= 90° to outflow plane) mediates the airflow, reducing pressure loss while the casing maintains protection against moisture.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the cooling module casing with flow deflection region is used to reduce pressure loss, then airflow efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveairflow efficiencyVSAvoidcasing structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The flow deflection region is merged with the cooling module casing as an integrated structure. The intake plane, outflow plane, and rear wall form a unified geometric configuration that achieves airflow optimization without requiring separate additional components, thus improving airflow efficiency while limiting complexity increase.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flow deflection region utilizes angular relationships in multiple dimensions (intake plane at angle alpha >= 55° to outflow plane, rear wall at angle beta <= 90° to outflow plane) to optimize airflow paths. This dimensional approach to flow control achieves improved airflow efficiency through geometric configuration rather than complex mechanical components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 reduces pressure loss and enhances airflow efficiency in electric vehicle cooling systems, ensuring effective heat transfer and improved cooling performance without additional costs.

Implementation Method 1

an axial fan for vehicles, in particular for electric vehicles

Methodology Applied
Scientific EffectFan: Fan

Implementation Method 2

A flow deflection region is formed in the cooling module casing between the intake plane and the outflow plane

Methodology Applied
Scientific EffectFlow deflection: Flow Separation

Implementation Method 3

The cooling module consists of a stator and a diffuser, which is arranged between the fan and the engine

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS11387709B2Cooling module with axial fan and flow deflection region for vehicles
Publication Date: 2022.07.12 HANON SYST CO LTD
  • US11387709B2 patent drawing
  • US11387709B2 patent drawing
  • US11387709B2 patent drawing

AI summary

The invention relates to a cooling module including an axial fan for vehicles, in particular for electric vehicles, which is characterized in that a cooling module casing encloses the axial fan and a flow deflection region and a cooling airflow enters the cooling module through an intake plane and leaves the cooling module through an outflow plane, wherein the intake plane and the outflow plane are aligned at an angle alpha in relation to one another and the angle alpha as the inclination of the intake plane in relation to the outflow plane is formed greater than or equal to 55° and the cooling module casing has a rear wall, wherein the rear wall is arranged at an angle beta of at most 90° in relation to the outflow plane, so that a flow deflection region is formed in the cooling module casing between the intake plane and the outflow plane and the rear wall.