Ceiling-Embedded AC Panel Fastening Structure to Prevent Screw Loss
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Solution Overview
Problem
Conventional ceiling-embedded air conditioner mounting structures face issues with screw loss, misalignment, and reduced workability due to the temporary hanging and fastening methods used for decorative panels.
Innovation Solution
A ceiling-embedded air conditioner design featuring a panel fastening system with a retractable panel fastening member and screw, which includes a panel fastening screw with a unique thread configuration and a Y-shaped screw engaging groove, allowing for easy mounting and positioning of the decorative panel without the risk of screw loss and improving workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastening screw is attached to the decorative panel for mounting, then the panel can be securely fastened to the indoor unit body, but the screw may fall or be lost during installation
Solution Approach 1:
The patent integrates the fastening screw directly into the mounting structure by providing a through-hole in the decorative panel that receives and retains the screw, merging the fastening function into the panel itself rather than using a separate loose screw component
Solution Approach 2:
The patent introduces a mounting structure with a through-hole as an intermediary element between the decorative panel and indoor unit body, which holds the fastening screw in place and prevents it from falling or being lost during installation
2Reliability
If a mounting screw member with integrated fastening screw and temporary hanging portion is used, then screw loss is prevented, but the workability of temporary hanging is reduced
Solution Approach 1:
The patent separates the fastening function from the hanging function by providing distinct through-holes for each purpose - one set for fastening screws and another set for temporary hanging, allowing each function to be performed independently without compromising the other
Solution Approach 2:
The patent applies different structural features to different locations on the mounting structure - through-holes with fastening features in certain positions and through-holes with hanging features in other positions, optimizing each location for its specific function
3Ease of manufacture
If conventional fastening methods are used, then the decorative panel can be mounted, but misalignment of screws with holes reduces workability
Solution Approach 1:
The patent designs the mounting structure so that the decorative panel itself provides the alignment features through its through-holes, eliminating the need for separate alignment operations or tools - the panel's structure guides the fastening screws into proper alignment automatically
Data Source
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AI summary
In a ceiling-embedded air conditioner, a panel fastening screw that fastens a decorative panel to an indoor unit body embedded in a ceiling is previously mounted to the indoor unit body and has an intermediate portion having a small diameter with no threaded portion.