Center Pillar Partition Structure for Complete Foam Filling
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Solution Overview
Problem
The existing vehicle body side part structure fails to fill the foaming agent in every corner of the filled space, leading to inadequate soundproofing.
Innovation Solution
A vehicle body side part structure with a center pillar having a fan-shaped base, inner panel with filling openings near inwardly-curved corners, and a partition member that partitions the filled space into two volumes of equal size, allowing the foaming agent to fill all corners effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the partition member is provided at a lower portion within the center pillar, then the structure is simplified and easier to manufacture, but the foaming agent cannot fill every corner of the filled space
Solution Approach 1:
The partition member is divided into multiple partition plates arranged at different heights within the center pillar. This segmentation creates multiple filled spaces (first filled space and second filled space) that can be independently filled with foaming agent, ensuring complete coverage of all corners and regions without requiring complex installation procedures.
2Device complexity
If the filled space is left as a single large volume, then the manufacturing process is simpler, but the foaming agent flows from one filling opening to another without filling all corners
Solution Approach 1:
The single large filled space is segmented into multiple smaller filled spaces by inserting partition plates at different heights. This prevents the foaming agent from flowing directly from one filling opening to another without properly filling the corners and regions in between, ensuring uniform and complete filling throughout the entire center pillar.
Solution Approach 2:
Different regions of the center pillar are divided into separate filled spaces with specific volumes, allowing localized control over foaming agent distribution. Each filled space can be optimally filled based on its specific geometric characteristics and corner requirements.
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 ensures that the foaming agent fills every corner of the filled space, enhancing the soundproofing properties of the vehicle body by preventing the agent from flowing from one corner to another and ensuring uniform distribution.
Implementation Method 1
the partition member includes a filled space partitioner to partition the filled space into a first filled space located closer to one of the inwardly-curved corners and a second filled space located closer to the other of the inwardly-curved corners
Data Source
AI summary
A vehicle body side part structure includes: a center pillar having a base expanding in a fan shape; an inner center pillar having filling openings formed in vicinity to front and rear inwardly-curved corners of the base; a center pillar stiffener defining a filled space to extend in a front-rear direction between the center pillar stiffener and inner center pillar; a side sill joined to lower ends of the inner center pillar and center pillar stiffener; and a partition member having front and rear cover portions and a main body integrated with the cover portions. The partition member includes a filled space partitioner to partition the filled space into a first filled space located closer to one of the inwardly-curved corners and a second filled space located closer to the other of the inwardly-curved corners so as to have a volume substantially equal to that of the first filled space.