Dashboard Panel Zigzag Beads for Rigidity and Vibration Suppression

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing car body panel structures face issues with insufficient rigidity and membrane vibration, particularly in the dashboard lower section, which requires additional reinforcing plates to improve rigidity and suppress vibrations, increasing manufacturing complexity and cost.

Innovation Solution

The car body panel structure incorporates zigzag-shaped beads separated by ridges on the dashboard lower section, eliminating the need for a reinforcing plate by enhancing overall rigidity and effectively suppressing membrane vibrations from both up-down and width directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a reinforcing plate is fixed to the dashboard lower section to improve rigidity, then the rigidity is improved, but the manufacturing complexity and cost increase

Engineering Contradiction:

ImproverigidityVSAvoidmanufacturing complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent applies curvature by forming beads with zigzag cross-sectional shapes on the dashboard lower section panel. These curved bead structures enhance rigidity without requiring additional reinforcing plates, thereby improving strength while avoiding increased manufacturing complexity. The beads are formed by pressing the panel surface into predetermined curved shapes.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Object-affected harmful factors

If longitudinal linear protrusions are disposed to suppress membrane vibration, then vibration suppression is improved, but the membrane vibration from width direction cannot be suppressed

Engineering Contradiction:

Improvemembrane vibrationVSAvoidvibration suppression coverage

Core Design Contradiction:

Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent employs asymmetric zigzag-shaped bead cross-sections that are not symmetric about the longitudinal axis. This asymmetric geometry enables the beads to suppress membrane vibrations from multiple directions including both the up-down direction and the width direction, thereby improving the versatility of vibration suppression compared to simple longitudinal protrusions.

Inventive Principle:

Principle #4Asymmetry

3Weight of moving object

If a thin plate is used for the dashboard lower section to reduce weight, then weight is reduced, but rigidity becomes insufficient

Engineering Contradiction:

ImproveweightVSAvoidrigidity

Core Design Contradiction:

Weight of moving objectVSStrength

Solution Approach 1:

The patent forms curved bead structures with zigzag cross-sections on the thin plate dashboard lower section. These curved features increase the panel's rigidity and resistance to deformation without adding significant weight, as the beads are formed by shaping the existing panel material rather than adding separate components.

Inventive Principle:

Principle #14Spheroidality (Curvature)

4Strength

If a reinforcing plate is fixed to the panel surface, then rigidity is improved, but manufacturing cost increases

Engineering Contradiction:

ImproverigidityVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSQuantity of substance

Solution Approach 1:

The patent merges the reinforcement function into the dashboard lower section panel itself by forming beads directly on the panel surface. This integration eliminates the need for separate reinforcing plates and their associated fixing operations, thereby reducing manufacturing cost while maintaining improved rigidity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11801903B2Car body panel structure

Publication Date: 2023.10.31 HONDA MOTOR CO LTD

AI summary

The disclosure provides a car body panel structure. The car body panel structure includes multiple beads disposed on the car body panel and separated by multiple ridges formed on the car body panel. Each of the beads is formed in a zigzag shape. The beads are all not in contact with the ridges.