Seal Ring Inner Profiles for Error-Proof Gasket Assembly
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Solution Overview
Problem
Different types of seal rings, despite being made from similar materials, can be mistakenly assembled due to their identical appearances, leading to incorrect assembly and potential functional issues.
Innovation Solution
The seal ring groups are designed with distinct inner peripheral shapes and projections, allowing for easy identification of each type by their unique projection shapes and arrangements, ensuring correct positioning and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If seal rings are made from similar materials with identical appearances, then manufacturing cost and material consistency are maintained, but assembly correctness deteriorates due to inability to distinguish different types
Solution Approach 1:
The patent applies asymmetry by providing at least one projection on the inner peripheral face of the seal ring that extends in the radial direction. Different seal rings have different projection configurations (number, position, shape), creating asymmetric features that enable visual distinction between otherwise identical seal rings made from similar materials. This resolves the contradiction by maintaining material consistency while enabling reliable identification and correct assembly.
2Reliability
If projections are added to seal rings for identification, then assembly correctness is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by adding projections only on the inner peripheral face of the seal ring, rather than modifying the entire structure. These localized projections serve the specific function of identification while maintaining the overall simplicity of the seal ring design. The projections are minimal structural additions that provide maximum differentiation capability with minimal increase in device complexity.
Data Source
AI summary
Seal ring groups to be assembled with edges of through holes of a gasket includes a plurality of sealing groups. One of the plurality of sealing groups has an inner peripheral shape different from an inner peripheral shape of another of the plurality of sealing groups to distinguish one sealing group from another sealing group.