Plastic Sealing Ring Assembly for Durable Replaceable Seals
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Solution Overview
Problem
Existing sealing systems for small electrical devices are often expensive, of inferior quality, and fail to maintain sealing effectiveness throughout the device's lifespan due to high material costs and lack of exchange options.
Innovation Solution
A sealing ring design comprising a plastic-based supporting body and sealing body, connected via adhesive or welding, with a housing element featuring radial and axial flanges, allowing for a form-fitting connection that eliminates the need for pretreatment and enhances sealing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sealing elements are integrated directly into housing components with simple sealing systems, then manufacturing cost is reduced, but sealing effectiveness deteriorates over service life
Solution Approach 1:
The sealing system is divided into separate components: a housing element and a separate sealing element that can be independently manufactured and assembled. This allows each component to be optimized for its specific function while maintaining cost-effectiveness.
Solution Approach 2:
The sealing element is positioned within a recess of the housing element, creating a nested structure where the sealing element sits inside the housing component. This ensures proper positioning and maintains sealing effectiveness without requiring complex integration.
2Ease of manufacture
If sealing elements are made from inferior quality materials to reduce cost, then manufacturing cost is reduced, but sealing durability deteriorates
Solution Approach 1:
Different materials are used for different components: the housing element can be made from cost-effective materials while the sealing element uses specialized materials with appropriate sealing properties. This localized material selection optimizes both cost and durability.
Solution Approach 2:
The sealing element may incorporate composite material structures or combinations of materials that provide both cost-effectiveness and enhanced sealing durability, such as polymer composites or multi-layer constructions.
3Reliability
If sealing elements are made replaceable, then sealing effectiveness over service life is improved, but device complexity increases
Solution Approach 1:
The sealing element is designed as a separate, replaceable component that can be independently removed and replaced without affecting the housing structure. This modular approach enables maintenance while keeping the overall device simple.
Solution Approach 2:
The housing element with its recess is designed to universally accommodate the sealing element, creating a standardized interface that simplifies replacement procedures and reduces the need for complex fastening mechanisms.
4Strength
If material-to-material bonding is used to connect sealing body to housing element, then connection strength is improved, but manufacturing complexity and pretreatment requirements increase
Solution Approach 1:
The bonding process is extracted and simplified by using pre-formed sealing elements with integrated bonding features or surface treatments that eliminate the need for complex pretreatment steps before assembly.
Solution Approach 2:
Bonding surfaces are pre-prepared during the manufacturing of individual components, with surface treatments or bonding layers applied in advance. This eliminates the need for complex pretreatment operations during final assembly.
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 design provides a cost-effective, durable sealing solution with improved clamping and static sealing capabilities, suitable for various materials and applications, including household appliances.
Implementation Method 1
The sealing body can be bonded to the housing element by a material fit. The material fit can be created using an adhesive.
Implementation Method 2
The material fit is preferably achieved by melting the plastic in places, for example, through a welded joint. This can be achieved, for example, by friction welding.
Data Source
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AI summary
The invention relates to a sealing ring (1), comprising a support body (2) and at least one sealing body (3), the support body (2) having at least one housing element (4) made from plastic, the housing element (4) having a radial flange (6) and an axial flange (7) and the housing element (4) holding the sealing body (3).