Cooling module for an electric or hybrid motor vehicle, having a tangential-flow turbomachine

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Solution Overview

Problem

Conventional cooling modules for electric and hybrid vehicles face performance issues due to the stacking of heat exchangers, which affects the aerodynamic efficiency and reduces the performance of downstream exchangers, as they are optimized for reduced size and increased thickness to improve aerodynamics.

Innovation Solution

The proposed cooling module positions the receiver-dryer upstream and perpendicular to the heat exchangers, with multiple heat exchangers in the same plane, and incorporates a tangential-flow turbomachine to optimize airflow and reduce turbulence, allowing for improved thermal management and aerodynamic fineness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If heat exchangers are stacked in the direction of air flow to reduce height and improve aerodynamics, then aerodynamic characteristics are improved, but the performance of downstream heat exchangers deteriorates due to airflow disruption

Engineering Contradiction:
Improveaerodynamic characteristicsVSAvoidheat exchanger performance
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The patent transitions from a vertical stacking arrangement (one dimension) to a horizontal side-by-side arrangement (another dimension). Multiple heat exchangers are positioned adjacent to each other in the same plane rather than stacked in the airflow direction, allowing all exchangers to access fresh airflow simultaneously without downstream units being affected by upstream turbulence or pressure drops.

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

2Shape

If the height of heat exchangers is reduced to improve aerodynamic fineness, then aerodynamic performance is improved, but the cooling capacity is reduced

Engineering Contradiction:
Improveaerodynamic finenessVSAvoidcooling capacity
Core Design Contradiction:
ShapeVSPower

Solution Approach 1:

The patent compensates for reduced heat exchanger height by arranging multiple exchangers side-by-side in the horizontal dimension. This multi-unit parallel configuration increases the total heat exchange surface area available, thereby maintaining or enhancing overall cooling capacity despite each individual unit having reduced height for aerodynamic purposes.

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

3Shape

If multiple heat exchangers are positioned in the same plane side by side, then aerodynamic characteristics are improved and each exchanger receives undisturbed airflow, but the device complexity increases

Engineering Contradiction:
Improveaerodynamic characteristicsVSAvoidcooling module configuration
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent integrates multiple heat exchangers into a single unified cooling module assembly with a common housing and shared airflow path. This merging approach allows the system to benefit from multiple parallel exchangers while presenting a compact, integrated structure that minimizes overall complexity compared to separate independent units.

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 configuration enhances the performance of heat exchangers by minimizing airflow disruption, maintaining similar dimensions for each heat exchanger layer, and reducing pressure drops, thereby improving the overall cooling efficiency and aerodynamic characteristics of electric and hybrid vehicles.

Implementation Method 1

a tangential-flow turbomachine (30), which is configured such as to generate the air flow (F) passing through the set of heat exchangers (23)

Methodology Applied
Scientific EffectTangential-flow turbomachine: Turbine

Implementation Method 2

a first heat exchanger (24) configured to be a condenser and designed to have the air flow (F) passing through it

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 3

the receiver-dryer (61) being positioned downstream of and facing a deflector element (70)

Methodology Applied
Scientific EffectSeparation: Cyclone Separation

Data Source

PatentUS20240017586A1Cooling module for an electric or hybrid motor vehicle, having a tangential-flow turbomachine
Publication Date: 2024.01.18 VALEO SYST THERMIQUES SAS
  • US20240017586A1 patent drawing
  • US20240017586A1 patent drawing
  • US20240017586A1 patent drawing

AI summary

The invention relates to a cooling module for an electric or hybrid motor vehicle, designed to have an air flow passing therethrough, and including: a primary front heat; a receiver dryer positioned in an upstream part of the cooling module considered in a longitudinal direction extending from the front toward the rear of the cooling module; and a deflector element. In the longitudinal direction of the cooling module, the receiver-dryer is positioned downstream of and facing the deflector element.