Duct Air Conditioner Cabinet Link Structure for Airtight Assembly
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Solution Overview
Problem
Duct type air conditioning devices face challenges with air leakage and increased workability due to the large number of fixing screws required for connecting the blowing and heat exchanging portions, which complicates repairs and requires multiple workers for heavy components.
Innovation Solution
The use of link members with extension portions that form multiple airtight seals between the cabinets and partition panel, reducing the number of fixing screws needed and facilitating easier connection and disconnection of the blowing and heat exchanging portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple fixing screws are used to connect the blowing portion and heat exchanging portion, then the connection strength is improved, but the ease of repair deteriorates due to increased disassembly time and complexity
Solution Approach 1:
The partition panel is divided into multiple detachable link members (first link member and second link member) that can be independently removed. This segmentation allows the upper plate to be detached without removing all fixing screws, enabling repairs with only 2-3 screws removed while maintaining overall connection strength when assembled.
2Reliability
If multiple fixing screws are used to connect the blowing portion and heat exchanging portion, then the connection reliability is improved, but the workability deteriorates due to requiring multiple workers for assembly and disassembly
Solution Approach 1:
The connection structure is segmented into multiple independent link members attached to the partition panel. This allows a single worker to detach the upper plate by removing only 2-3 fixing screws from specific link members, rather than handling numerous screws across the entire assembly, significantly improving workability while maintaining connection reliability through the distributed link member structure.
3Device complexity
If the upper plate is directly fastened to the partition panel with fixing screws, then the structural simplicity is improved, but the airtight seal deteriorates causing air leakage in the connection portion
Solution Approach 1:
Link members are introduced as intermediary components between the upper plate and partition panel. These link members include sealing portions that contact the upper plate to prevent air leakage, while still allowing the simple direct fastening structure to be maintained. The link members act as mediators that simultaneously provide sealing functionality and structural connection.
4Manufacturing precision
If the coupling portion is inserted into the coupling groove after lifting the cabinet with predetermined height, then the connection precision is improved, but the productivity deteriorates due to requiring at least two workers for heavy components
Solution Approach 1:
The connection structure is segmented into link members attached to the partition panel, which guide and support the coupling portion during insertion. This segmentation eliminates the need to lift the entire heavy cabinet, as the link members provide localized support and alignment, enabling a single worker to achieve precise connection while improving productivity.
Data Source
AI summary
A duct type air conditioning apparatus is provided with a blowing portion including a first cabinet in which a blower assembly is installed and a heat exchanging portion including a second cabinet in which a heat exchanger is installed. The air conditioning apparatus includes a partition panel arranged between the first and second cabinets and connected to facing sides of the first and second cabinet, and first and second link members separably fastened along an upper end and a lower end of the partition panel to keep an airtight seal in a connection portion between the first and second cabinets.