Canister Accessory Coupling Mechanism for Stable Fixation
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Solution Overview
Problem
Existing mounting devices for accessory components on canisters require cumbersome and time-consuming bolt tightening operations, especially for heavy components, leading to increased assembly steps and instability.
Innovation Solution
A coupling device with an engagement mechanism between the canister's outer wall and the accessory component's housing, allowing for elastic fixation and reduced assembly steps by fitting the housing into the canister, along with protrusions and concaves for alignment and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bolts are used to mount accessory components on the canister, then the components can be securely fixed, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent combines the mechanical fixation function and flow communication function into a single integrated coupling structure. The coupling member simultaneously serves as both a mechanical fastener and a flow passage connector, eliminating the need for separate bolts and reducing assembly complexity while maintaining secure fixation of the accessory component to the canister
Solution Approach 2:
The coupling member is designed with multi-functionality, serving both as a mechanical attachment element and as a flow communication element. This universal component performs multiple functions (fixation and fluid connection) that were previously handled by separate components, thereby simplifying the overall assembly process
2Reliability
If multiple bolts are used for heavy accessory components, then stable fixation is achieved, but the number of assembly steps increases
Solution Approach 1:
The coupling structure merges multiple fixation points into a single integrated coupling member that engages with the canister in one assembly operation, eliminating the need for multiple separate bolt tightening operations and significantly reducing assembly time while maintaining stable fixation for heavy components
3Device complexity
If a simple mounting structure is used, then assembly steps are reduced, but fixation stability may be compromised
Solution Approach 1:
The integrated coupling member combines mechanical engagement features and flow communication features in a single structure, achieving both simple assembly and reliable fixation. The coupling member's design incorporates engagement surfaces and structural features that provide stable mechanical attachment while simultaneously establishing flow communication, eliminating the need for complex multi-component assemblies
Data Source
AI summary
An apparatus including a canister and an accessory component associated with the canister. The canister may be filled with an adsorption material for adsorbing fuel vapor generated within a fuel tank. A communicating pipe extends downwardly from a housing of the accessory component for communication with the canister. An engaging protrusion is provided on an outer peripheral surface of the housing. An outer peripheral portion of an upper portion of the canister includes a wall portion for engagement with the engaging protrusion.