Cooling Assembly With Integrated Grid for Offset Heat Exchanger Protection
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Solution Overview
Problem
Conventional cooling systems for motor vehicles, with heat exchangers positioned in the front face, are vulnerable to damage from projections like gravel, and existing protective grids do not adequately protect all parts of the heat exchangers, particularly the second heat exchanger when it is offset from the first.
Innovation Solution
A cooling assembly where the protective grid for the second heat exchanger is integrated with the frame, forming a single assembly that cannot be separated without damage, with the grid extending opposite the portion of the second heat exchanger that extends beyond the first, ensuring comprehensive protection against projections, and the first heat exchanger is protected by both the air duct and a separate protective grid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the second heat exchanger is offset relative to the first heat exchanger to ensure supply of fresh air, then the fresh air supply to the second heat exchanger is improved, but the protection of the second heat exchanger against projections is worsened
Solution Approach 1:
The protective grid is divided into two separate grids: a first protective grid attached to the first heat exchanger and a second protective grid attached to the frame. This segmentation allows each grid to be positioned independently to protect specific portions of the heat exchangers, enabling the second heat exchanger to be offset for fresh air supply while still providing comprehensive protection against projections.
2Ease of manufacture
If the protective grid and frame are made as separate components, then the ease of manufacture and assembly is improved, but the structural integrity and protection effectiveness are worsened
Solution Approach 1:
The second protective grid and the frame are merged into a single integral component. This merging ensures that the protective grid cannot become detached from the frame, maintaining consistent protection for the second heat exchanger while simplifying the assembly process by reducing the number of separate parts that need to be installed and secured.
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 effectively protects both heat exchangers from damage by gravel and other projections, ensuring continuous air flow and efficient heat exchange while maintaining the structural integrity of the protective grid and frame.
Implementation Method 1
each heat exchanger being configured to allow calories to be exchanged between the heat transfer fluid circulating in and an air flow passing through the heat exchanger
Implementation Method 2
the at least one protective grid for protecting the second heat exchanger forms a one-piece part with the frame
Data Source
AI summary
The present invention concerns a cooling assembly (100) for a motor vehicle, comprising at least one first heat exchanger (110) extending mainly in a first plane (PI), at least one second heat exchanger (120) extending mainly in a second plan (P2) and at least one protective grid (136) for protecting the second heat exchanger (120), the first heat exchanger (110) and/or the second heat exchanger (120) being carried by a frame (130), characterised in that the at least one protective grid (136) of the second heat exchanger (120) forms a one-piece part with the frame (130).