Snap Connector Assembly With Single-Seal Hose-to-Spigot Interface
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Solution Overview
Problem
Conventional snap connectors for hoses and spigots require multiple sealing positions, potential leak points, and larger mounting space, which is disadvantageous in space-critical applications like e-mobility.
Innovation Solution
A compact connector assembly with a single sealing position is achieved by arranging tubular retaining members with an axial gap, allowing a sealing element to be sandwiched between them, thus eliminating the need for multiple sealing positions and reducing overall dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional snap connectors use multiple sealing positions with O-rings at different positions, then reliable sealing is achieved, but the number of potential leak parts increases and mounting space requirements increase
Solution Approach 1:
The patent merges the sealing function into a single sealing position located at the interface between the hose and spigot, eliminating the need for multiple separate O-rings at different positions. This is achieved by designing the connector assembly so that the hose and spigot form a direct sealing interface, reducing the number of sealing components while maintaining reliable sealing through proper geometric design of the connection interface.
2Reliability
If conventional snap connectors provide sealing at multiple positions, then comprehensive sealing coverage is achieved, but the axial mounting space and overall diameter increase
Solution Approach 1:
The patent combines multiple sealing functions into a single sealing position at the hose-spigot interface, eliminating the need for distributed sealing elements along the axial direction. This consolidation reduces the axial mounting space required while maintaining comprehensive sealing coverage through the direct interface between the hose and spigot components.
3Reliability
If conventional snap connectors use multiple sealing elements, then multiple sealing positions are covered, but the overall diameter becomes considerably larger than the hose diameter
Solution Approach 1:
The patent merges all sealing functionality into a single sealing position at the hose-spigot interface, eliminating the need for multiple sealing elements that would increase the overall diameter. The direct interface design allows comprehensive sealing coverage without requiring additional radial space, keeping the connector assembly diameter close to the hose diameter.
4Reliability
If conventional snap connectors are designed with multiple sealing positions, then reliable fluid connection is achieved, but the number of components and potential leak parts increases
Solution Approach 1:
The patent merges the sealing function into a single sealing position at the hose-spigot interface, eliminating the need for multiple separate sealing components such as multiple O-rings. This reduction in component count decreases the number of potential leak parts while maintaining reliable fluid connection through the simplified direct sealing interface.
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 provides a reliable, compact, and space-efficient connection with reduced potential leak points, ensuring a secure fluid transfer in applications where space is limited.
Implementation Method 1
one sealing element can be axially interposed and thus form a seal directly between the hose and the spigot
Data Source
Figure 1a~1d
Figure 2a~2c
AI summary
A multi-part connector assembly is provided which realises a compact snap coupling between a hose (40) and a pipe socket (50) with only a single potential leaking position and requiring only a minimum number of parts:a first retaining member (10), a second retaining member (20) and a sealing element (30) sandwiched therebetween in the axial direction of the connector assembly.