Blower Volute Connection Structure with Integrated Drainage
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Solution Overview
Problem
The conventional connecting structure between a blower volute and a conversion interface is complex, costly, and unstable due to its multiple parts and loose connections, making it difficult to assemble and maintain.
Innovation Solution
A simplified connecting structure featuring a lower plate with protruding lugs and a curved convex block, paired with a sleeve and upper plate with mounting holes, reduces the need for connecting plates and bolts, providing a stable and firm connection through a boss-and-mounting-hole mechanism, and includes a water drainage pipe for condensation management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional connecting structure with connecting plate and bolts is used, then the connection is provided, but the structure becomes complicated and production cost increases
Solution Approach 1:
The patent merges the connecting plate and multiple bolts into a single integrated connecting structure. The connecting structure includes a connecting body with first connecting ears and second connecting ears that directly engage with the blower volute and conversion interface respectively, eliminating the need for separate connecting plates and multiple fastening bolts, thus simplifying the structure while maintaining connection reliability
Solution Approach 2:
The connecting body serves multiple functions simultaneously: it provides structural support, enables connection between components, and incorporates drainage holes for condensation removal. This multi-functionality reduces the number of separate parts needed while maintaining comprehensive performance
2Reliability
If a conventional connecting structure with multiple parts is used, then the connection is provided, but the production cost increases
Solution Approach 1:
The patent combines multiple separate parts (connecting plate, multiple bolts, and other fastening components) into a single integrated connecting structure with connecting ears and drainage holes formed as one piece or pre-assembled unit, reducing the number of manufacturing steps, inventory requirements, and assembly operations, thereby lowering production costs while maintaining connection stability
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate components from the conventional connecting structure, retaining only the essential connecting functionality through the connecting body with integrated connecting ears, thus reducing part count and production complexity
3Device complexity
If a conventional connecting structure with bolts is used, then the connection is provided, but the connection becomes infirm and prone to loosening
Solution Approach 1:
The patent integrates the fastening function directly into the connecting body structure through the interlocking design of first and second connecting ears that engage with corresponding mounting structures on the blower volute and conversion interface, eliminating separate bolts that can loosen, thereby achieving both structural simplicity and connection reliability
Solution Approach 2:
The connecting ears are pre-formed with engagement features during manufacturing, allowing for pre-assembled units that maintain stable connections without requiring field assembly of separate fastening components that could loosen over time
Data Source
AI summary
A connecting structure, including: a volute including an air inlet and an air outlet; and a conversion interface. A connecting part is disposed on an outer side of the air outlet. The connecting part includes: a lower plate; a lower lug protruding outward from each end of the lower plate; and an upper flange disposed above the lower plate. The conversion interface includes a sleeve. An upper plate protrudes from a rear part of the sleeve. Two upper lugs protrude outward from two ends of the upper plate, respectively. A lower flange is disposed on the rear part of the sleeve beneath the upper plate. The upper plate is disposed on the upper flange. The lower flange is disposed on a curved convex block that protrudes upward from an outer edge of the lower plate. The upper lug is disposed on the lower lug.