Trunk Lid Panel Structure With Integrated Vibration Damper Cavity
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Solution Overview
Problem
Existing vehicle trunk lid designs do not effectively utilize a single inner panel to define a basic shape with a hollow space for a vibration damper assembly, which is essential for reducing noise and vibrations during vehicle operation.
Innovation Solution
A vehicle trunk lid assembly featuring a single inner trunk panel with an upper and lower outer panel, where the hollow space between the inner and upper outer panels houses a vibration damper assembly, utilizing brackets for attachment and a contoured design to enhance structural integrity and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single inner trunk panel is used to define the basic shape of the trunk lid, then the manufacturing complexity is reduced and structural integrity is improved, but no hollow space is available to house vibration damper assembly
Solution Approach 1:
The trunk lid is segmented into multiple functional layers: an inner trunk panel defining the basic shape, an outer trunk panel providing structural support, and intermediate bracing members. This segmentation creates hollow spaces between layers that can accommodate the vibration damper assembly, resolving the contradiction between structural simplicity and vibration control capability.
Solution Approach 2:
The vibration damper assembly is nested within the hollow space formed between the inner and outer trunk panels. This nesting approach allows the vibration control system to be integrated into the existing trunk lid structure without adding external components, maintaining manufacturing simplicity while enabling effective vibration damping.
2Object-affected harmful factors
If multiple panels are used to create a hollow space for vibration damper assembly, then vibration and noise reduction is improved, but the manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The trunk lid structure is divided into distinct functional segments (inner panel, outer panel, bracing members) that can be manufactured separately and then assembled. The hollow spaces are naturally formed by this segmentation, providing accommodation for vibration dampers without requiring complex additional manufacturing steps.
Solution Approach 2:
Bracing members serve as intermediary elements that connect the inner and outer panels while simultaneously creating the hollow spaces needed for vibration damper installation. These bracing members simplify the overall assembly process by providing structural support and defining the cavities for vibration control components in a single integrated approach.
3Ease of manufacture
If traditional trunk lid design without hollow space is used, then manufacturing is simpler, but acoustic comfort and structural reinforcement are insufficient
Solution Approach 1:
The trunk lid is constructed with segmented panels and bracing members that create internal hollow spaces. This segmentation maintains manufacturing simplicity while providing integrated spaces for vibration control components, thereby improving acoustic comfort and structural integrity without complicating the manufacturing process.
Solution Approach 2:
Vibration control components are nested within the hollow spaces of the segmented trunk lid structure. This nesting approach allows traditional simple manufacturing methods to be used while still incorporating vibration dampers and acoustic treatment materials, achieving improved reliability without sacrificing ease of manufacture.
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 effectively reduces vibrations and noise by incorporating a vibration damper assembly within the trunk lid assembly, improving the overall acoustic comfort and structural reinforcement of the vehicle trunk.
Implementation Method 1
a vibration damper assembly (28) attached to the inner trunk panel (20) and positioned between the inner trunk panel (20) and the upper outer panel (24)
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A vehicle trunk lid assembly (12) includes an inner trunk panel (20), an upper outer trunk panel (24) and a lower outer trunk panel (26). The inner trunk panel (20) has a generally horizontal portion (30) and an upright portion (34). The upright portion (34) extends downward from the horizontal portion (30) with the trunk lid assembly (12) in a closed orientation. The upper outer trunk panel (24) has a main section (40) that extends horizontally and a contoured section (42) that extends downwardly from a rearward area (40a) of the main section (40). The main section (40) is attached to the horizontal portion (30) of the inner trunk panel (20). The lower outer trunk panel (26) is attached to at least a lower section of the upright portion (34) of the inner trunk panel (20), a lower edge (44a) of the upper outer trunk panel (24) and a lower edge of the inner truck panel (20).