Baffle Assembly Alternating Supports for Energy Absorption

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Solution Overview

Problem

Existing vehicle baffle assemblies are ineffective in absorbing energy when forces are applied, leading to potential damage and inefficiencies in guiding air flow into engine compartments.

Innovation Solution

A baffle assembly with a body featuring an edge with alternating patterns of supports and protrusions, secured by a seal member, which creates an energy-absorbing region to manage forces and direct air flow effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional baffle assemblies are used without alternating support and protrusion patterns, then the structure is simpler, but the energy absorption capability when forces are applied is insufficient

Engineering Contradiction:
Improveenergy absorption capabilityVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The baffle assembly edge is segmented into alternating supports and protrusions, dividing the continuous edge structure into discrete functional elements. This segmentation allows each element to independently deform and absorb energy during impact, while maintaining overall structural integrity. The supports provide rigid anchoring points while the protrusions create controlled deformation zones.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the baffle assembly edge are given different mechanical properties through the alternating support-protrusion pattern. The supports are designed with higher stiffness to maintain structural stability, while the protrusions are configured to deform more easily for energy absorption. This local differentiation optimizes both strength and energy absorption without requiring the entire structure to be complex.

Inventive Principle:
Principle #3Local quality

2Reliability

If the baffle assembly includes alternating supports and protrusions with seal member, then energy absorption and airflow guidance are improved, but manufacturing complexity increases

Engineering Contradiction:
Improveairflow guidance effectivenessVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The seal member is integrated with the baffle assembly body as a unified component rather than a separate attachment. The alternating supports and protrusions are formed as part of the same molded structure, eliminating the need for separate manufacturing steps for these elements. This merging reduces assembly operations while maintaining the complex functional geometry needed for effective airflow guidance and energy absorption.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The alternating support-protrusion structure serves multiple functions simultaneously: it provides mechanical strength during impact, guides airflow toward the shutter, and integrates the seal member for weatherproofing. This multi-functionality reduces the need for additional separate components, thereby simplifying the overall manufacturing process despite the enhanced functionality.

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

Data Source

PatentUS9902430B2Baffle assembly and a vehicle
Publication Date: 2018.02.27 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US9902430B2 patent drawing
  • US9902430B2 patent drawing
  • US9902430B2 patent drawing

AI summary

A baffle assembly includes a body, and a vehicle includes a bumper beam and the baffle assembly. The body includes an edge facing outwardly away from the body. A region of the edge includes a plurality of supports spaced from each other. The baffle assembly further includes a seal member secured to the edge of the body. The seal member includes a plurality of protrusions spaced from each other and interleaved with the plurality of supports such that the protrusions and the supports cooperate with each other in an alternating pattern which creates an area configured to absorb energy when a force is applied in the region.