Door Impact Beam Bracket with Vertical Reinforcing Arm
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Solution Overview
Problem
The existing supporting structures for door impact beams in vehicles are prone to collapse during side impacts, leading to insufficient absorption of impact energy and increased energy transfer to the vehicle's interior, compromising safety and side impact performance.
Innovation Solution
A supporting structure for the door impact beam featuring a coupling part with a coupling groove, a downwardly bent supporting part, and mounting parts integrated along the sides, which are protruded from the inner panel to form a reinforcing part with convex and concave shapes, enhancing the structural rigidity and energy dispersion capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a base bracket with a reinforcing bracket is used to support the impact beam, then the supporting force is reinforced, but the structure is prone to collapse during side impacts and cannot sufficiently absorb impact energy
Solution Approach 1:
The patent transitions from a planar bracket structure to a three-dimensional structure by adding a vertically extending reinforcing arm that protrudes from the inner panel. This vertical dimension creates additional space for energy absorption and prevents collapse during side impacts, resolving the contradiction between supporting force and reliability.
Solution Approach 2:
The bracket structure combines multiple functional components (base bracket, reinforcing bracket, and vertically extending reinforcing arm) into an integrated composite structure. This composite design synergistically combines the supporting function of the base bracket with the reinforcing function of the vertical arm, achieving both sufficient supporting force and reliable side impact performance.
2Ease of operation
If a cantilever form base bracket is used to fix the impact beam, then the impact beam is supported, but the structure lacks sufficient rigidity and collapses easily during impact
Solution Approach 1:
The bracket is segmented into distinct functional parts: a base bracket for fixing the impact beam, a vertically extending reinforcing arm for enhancing rigidity, and mounting parts for attachment to the inner panel. This segmentation allows each part to perform its specific function optimally while maintaining overall structural stability.
Solution Approach 2:
The reinforcing arm extends vertically from the inner panel, adding a third dimension to the originally planar cantilever structure. This vertical extension significantly increases the moment of inertia and structural rigidity, preventing collapse during impact while maintaining the ease of impact beam support.
3Ease of manufacture
If the reinforcing bracket is mounted only with a vertical coupling part to the inner panel, then the mounting is simplified, but the structure collapses easily at impact due to insufficient connection points
Solution Approach 1:
The patent applies local quality by providing mounting parts at specific critical locations: along the coupling part and the vertically extending reinforcing arm. This strategic placement of mounting parts reinforces key structural areas, enabling the simplified mounting structure to effectively absorb impact energy during side impacts.
Solution Approach 2:
The mounting structure combines the vertical coupling part with additional mounting parts positioned along the reinforcing arm, creating a composite mounting system. This composite mounting approach maintains manufacturing simplicity while significantly enhancing impact energy absorption capability through distributed attachment points.
Data Source
AI summary
A supporting structure of a door impact beam for a vehicle mounted on an inner panel of a door for the vehicle, may include a coupling part formed with a coupling groove to which the impact beam may be coupled, a supporting part bent downwardly from the coupling part and supporting the coupling part, and mounting parts provided along side portions of the coupling part and the supporting part and mounted on the inner panel of the door, wherein the coupling part, the supporting part, and the mounting part may be integrally formed, and the coupling part and the supporting part may be protruded from the inner panel of the door to form a reinforcing part.