Ceiling Air Conditioner Blade Support to Prevent Port Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ceiling-type air conditioners face issues with blade separation from the housing due to self-weight and require reinforcement of the housing structure around the discharge port to maintain effective air discharge and improve external appearance.
Innovation Solution
The air conditioner incorporates a blade drive unit, first and second support members with distinct coupling portions and central axes, and a flexible blade with air discharge holes, allowing for controlled rotation and secure contact with the housing to prevent separation and enhance structural strength and appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single support member is used to support the blade, then the device complexity is reduced, but the blade separation from housing due to self-weight cannot be prevented
Solution Approach 1:
The support system is divided into multiple support members (first support member and second support member) positioned at different locations along the blade. This segmentation allows each support member to independently bear specific portions of the blade's self-weight, preventing blade separation from the housing while maintaining structural reliability.
2Strength
If the housing structure around the discharge port is reinforced, then the strength is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The housing structure is designed with localized reinforcement specifically at the discharge port region where strength is needed to support the blade and coupling portions. The rest of the housing maintains its original simpler structure, thus achieving the required strength improvement without unnecessarily increasing overall device complexity or manufacturing difficulty.
3Reliability
If the blade coupling portion has a larger size, then the blade support reliability is improved, but the external appearance is deteriorated
Solution Approach 1:
The coupling protrusions and coupling portions are designed with nested structures where smaller coupling features are positioned within or alongside larger structural elements. This nesting allows the coupling portions to have sufficient size for reliable blade support while being visually integrated into the housing structure, thereby maintaining acceptable external appearance.
4Stability of the object's composition
If multiple support members with different coupling portion sizes are used, then the blade self-weight distribution is optimized, but the manufacturing precision requirements increase
Solution Approach 1:
The first and second support members are designed with asymmetric coupling portion sizes tailored to their specific positions and load requirements. The first support member has a larger coupling portion to handle higher load areas, while the second support member has a smaller coupling portion for regions requiring less support. This asymmetric design optimizes blade weight distribution while using standard manufacturing tolerances for each specific coupling dimension.
Data Source
AI summary
An air conditioner includes a housing having a discharge port, a blade rotatably provided in the discharge port, a blade drive unit configured to rotate the blade, a first support member configured to rotatably support the blade and comprising a first blade coupling portion, a second support member configured to rotatably support the blade, located to be closer to the blade drive unit than the first support member, and comprising a second blade coupling portion having a size different from that of the first blade coupling portion.