Sealing Plug with Interconnected Rings for Dual-Side Vehicle Body Sealing
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Solution Overview
Problem
Existing sealing plugs for vehicle bodies are complex to produce and lack stability while sealing openings on both sides effectively.
Innovation Solution
A sealing plug design featuring a base body and a sealing body with two interconnected sealing rings, connected via a sprue area and radial connecting webs, allowing for simultaneous injection and enhanced stability, along with spring sections for easier assembly and a heat-melting plastic for secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing plugs have two separate sealing areas attached on both sides of the opening, then sealing effectiveness is improved, but manufacturing complexity increases significantly
Solution Approach 1:
The patent merges two separate sealing areas into a single integrated sealing body with two sealing rings. The sealing body is formed as one piece that simultaneously provides sealing on both sides of the opening, eliminating the need to attach separate sealing areas and reducing manufacturing complexity while maintaining dual-side sealing effectiveness.
Solution Approach 2:
The sealing body is segmented into two functional sealing rings within a single structure. Each sealing ring is positioned to contact the body part on opposite sides, allowing the single sealing body to perform the function of two separate seals through internal segmentation rather than external assembly.
2Reliability
If sealing rings are positioned close together, then sealing effectiveness is improved, but stability during injection molding deteriorates
Solution Approach 1:
Connecting webs serve as intermediary structural elements between the two sealing rings. These webs provide mechanical support and distribute injection forces across the sealing body, preventing the sealing rings from being pushed apart while maintaining their close positioning for effective dual-side sealing.
Solution Approach 2:
The connecting webs extend in a radial direction from the sprue area between the sealing rings, creating a three-dimensional support structure. This dimensional arrangement provides stability against injection forces while allowing the sealing rings to remain closely positioned for effective sealing contact.
3Ease of manufacture
If the sprue area is integrated with sealing rings, then manufacturing is simplified, but surface unevenness occurs affecting sealing quality
Solution Approach 1:
The sprue area is extracted and separated from the sealing rings in the design. The sprue area is positioned in the center while sealing rings are arranged around it, connected by thin webs. This separation prevents the sprue area from creating surface unevenness on the sealing surfaces while maintaining the integrated structure for simplified injection molding in a single operation.
4Stability of the object's composition
If connecting structures are added between sealing rings, then structural stability is improved, but production time increases
Solution Approach 1:
The connecting webs are merged into the same injection molding process that forms the sealing rings and sprue area. All components are created simultaneously in a single operation without additional assembly steps, so while connecting structures are present for stability, no additional production time is required beyond the standard injection cycle.
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 simplifies production, ensures reliable sealing on both sides of the opening, reduces production costs, and provides a secure, stable connection that maintains sealing even during temperature changes.
Implementation Method 1
The sealing body can consist of a heat-melting plastic, for example, so that a material connection between the sealing plug and the vehicle component can be produced by heating the vehicle component
Data Source
AI summary
The sealing plug (8) comprises a main body (30), which is made of plastic material, and a sealing body (10), which is attached at the main body. The sealing body has two sealing rings, which are arranged opposite to each other. The sealing body has a spruing area and multiple connecting areas, by which the two sealing rings are connected with each other.