Door Panel Adhering Portions Segmentation for Heat Resistance
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Solution Overview
Problem
Conventional door panels with double-panel structures face deformation issues when adhering portions are bonded, and modifications to withstand severe heat are hindered by vertically extending rib portions, which also interfere with forming large ventilation openings without compromising the panel's shape or strength.
Innovation Solution
A door panel design featuring a frame-like reinforcing raised portion, laterally extending crossbar-shaped reinforcing raised portions, and vertically extending rib portions, where the frame-like portion has a larger cross-section than the crossbar-shaped portions, allowing for large ventilation openings to be cut out without deforming the panel, and ensuring structural integrity and clean-cut surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If vertically extending rib portions are formed on adhering portions to prevent deformation and increase rigidity, then the adhering portions are prevented from deforming during bonding, but the rib portions interfere with modifications to withstand severe heat and prevent formation of large ventilation openings
Solution Approach 1:
The adhering portions are divided into multiple segments by introducing cutout portions that extend in the vertical direction. These cutout portions separate the rib portions into isolated islands, allowing the adhering portion to be flexible enough for heat resistance modifications while maintaining sufficient rigidity through the distributed rib structures. This segmentation enables both ventilation openings and heat resistance modifications without compromising overall structural integrity.
2Area of moving object
If large ventilation openings are cut out from adhering portions, then ventilation function is improved, but the shape and strength of the door panel are significantly impaired
Solution Approach 1:
The adhering portions are segmented by cutout portions that create isolated rib portion islands. This segmentation allows large ventilation openings to be formed while the distributed rib islands maintain the structural strength of the panel. The rib portions are strategically positioned to provide reinforcement without blocking ventilation pathways.
Solution Approach 2:
Rib portions are concentrated at specific locations within the adhering portions where they are needed for structural support, while other areas are opened for ventilation. This local concentration of reinforcement allows large ventilation openings without significantly impairing overall panel strength, as the rib portions provide targeted support at critical locations.
3Stability of the object's composition
If adhering portions are bonded to the outer panel, then the double-panel structure is formed, but the adhering portions are prone to deformation during bonding
Solution Approach 1:
Rib portions are pre-formed on the adhering portions before the bonding process. These pre-formed rib portions act as reinforcement structures that prevent deformation during the subsequent bonding operation. The rib portions are created in advance to provide structural support exactly where needed during assembly.
Solution Approach 2:
Reinforcement is provided locally at the adhering portions through the formation of rib portions at specific locations. This localized reinforcement prevents deformation only where it is most needed during bonding, while maintaining the overall flexibility and formability of the adhering portions for other manufacturing operations.
Data Source
AI summary
The present invention provides a door panel that comprises an outer panel and an inner panel joined together at adhering portions and, regardless of whether rib portions are formed on the adhering portions in order to prevent deformation of the adhering portions or for other purpose, can be modified to withstand severe heat by means of formation of large ventilation openings in the adhering portions without significantly impairing the shape or the strength of the door panel.