Adhesive Portal Sealing Frame for Vehicle Door Tightness
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Solution Overview
Problem
Existing vehicle door portal sealing systems face issues with tightness due to production-related tolerances and angle errors transferred during screw tightening, leading to potential leaks.
Innovation Solution
A vehicle door portal sealing system where at least one side part of the portal sealing frame is connected to the door portal using an adhesive connection, eliminating the need for screw connections and incorporating recesses to reduce rigidity, allowing for cost-effective manufacturing and improved fitment without time-consuming adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections are used to attach the portal sealing frame to the door portal, then the portal sealing frame can be securely fastened, but angle errors from the screwing surfaces are transferred to the portal sealing frame, leading to leaks
Solution Approach 1:
The patent replaces the mechanical screw connection system with an adhesive bonding system. The adhesive layer compensates for angle errors and surface irregularities on the door portal, preventing the transfer of angular deviations to the portal sealing frame. This substitution eliminates the primary cause of leaks while maintaining secure attachment and achieving both reliability and manufacturing precision.
2Stability of the object's composition
If the portal sealing frame is made rigid to ensure structural stability, then it can maintain its shape, but it cannot adapt to production-related tolerances and bumps on the door portal surface
Solution Approach 1:
The patent applies local quality by creating recesses in specific areas of the portal sealing frame where it contacts the door portal. These localized recesses allow the frame to adapt to surface irregularities and production tolerances at critical contact points, while the overall structure maintains its rigidity and structural stability. This selective modification enables both stability and adaptability simultaneously.
3Reliability
If screw connections are used to attach the portal sealing frame, then secure fastening is achieved, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The patent replaces the mechanical screw connection system with an adhesive bonding system. This substitution eliminates the need for drilling, tapping, and tightening operations, significantly simplifying the manufacturing process. The adhesive application is more straightforward and requires less specialized equipment, reducing manufacturing complexity while maintaining secure attachment through the adhesive's bonding strength.
4Strength
If the portal sealing frame is made with high rigidity to ensure durability, then it can withstand operational stresses, but it requires time-consuming adjustments to achieve proper fitment
Solution Approach 1:
The patent introduces recesses at the contact areas between the portal sealing frame and door portal. These localized features allow the rigid frame to adapt to surface variations without requiring time-consuming adjustments. The recesses absorb dimensional variations and angular errors, enabling the durable, rigid structure to achieve proper fitment immediately during assembly, eliminating adjustment time.
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 solution enhances the tightness of the door portal by avoiding angle errors and leaks, while reducing manufacturing costs and simplifying the attachment process, ensuring a precise fit with minimal effort.
Implementation Method 1
at least one of the side parts of the portal sealing frame is connected to the door portal by means of an adhesive connection
Data Source
Figure 1~2
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AI summary
The invention relates to a vehicle (2, 44), which comprises a door portal (12) and a portal sealing frame (14) connected to the door portal (12), which sealing frame has a plurality of side parts (16, 18) connected to one another. In order to achieve improved sealing on the door portal (12), according to the invention, at least one of the side parts (16, 18) of the portal sealing frame (14) is connected to the door portal (12) by means of an adhesive connection.