Ceiling Fan Snap-Fit Connector Vibration Resistance
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Solution Overview
Problem
Existing ceiling fan designs face issues with screws loosening under continuous vibration, leading to loose or sagging blades, and manual cleaning methods are cumbersome and tiring.
Innovation Solution
A ceiling fan design featuring a snap-fit connector system that securely attaches blades to the motor housing, allowing for easy detachment and reattachment for cleaning, and enabling reversible and replaceable blades for décor changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws or similar fasteners are used to attach blades to blade irons, then the blades can be securely attached, but the screws can loosen under continuous vibration causing blades to become loose or sag
Solution Approach 1:
The attachment system is divided into separate components: the blade iron with integrated first element, the blade with through openings, and the snap-fit connector with biased snap pins. This segmentation allows each component to perform its specific function while maintaining secure attachment through the snap-fit mechanism that resists vibration-induced loosening.
Solution Approach 2:
The traditional screw-fastening mechanical system is replaced with a snap-fit connector system that uses elastic deformation and geometric interlocking. The biased snap pins engage with the through openings through elastic compression, providing a vibration-resistant attachment that eliminates the loosening problem inherent in threaded fasteners.
2Ease of operation
If manual cleaning methods are used, then blades can be cleaned, but the process is cumbersome and tiring
Solution Approach 1:
The blade assembly is segmented into easily detachable components. The blade can be quickly removed from the blade iron through the snap-fit connector, allowing users to easily access and clean the blade surfaces without tools. The same segmentation enables rapid reattachment after cleaning, minimizing time loss.
Solution Approach 2:
The attachment system transitions from a static, permanent fastening to a dynamic, easily detachable connection. The snap-fit connector allows the blade to be quickly removed and reattached, transforming the cleaning process from a cumbersome task to a simple, rapid operation that can be performed with minimal effort and time.
3Adaptability or versatility
If the entire fan is replaced for décor changes, then new décor can be achieved, but this is costly and time-consuming
Solution Approach 1:
The fan is segmented into permanent components (motor housing, blade irons) and replaceable components (blades). This segmentation allows users to change décor by simply replacing the blades rather than the entire fan, reducing complexity and cost while maintaining adaptability to different decorative preferences.
Solution Approach 2:
The blade iron and motor housing serve universal functions that remain permanent, while the blades can be exchanged to serve different decorative functions. This universality allows a single fan structure to support multiple décor configurations through blade replacement, eliminating the need for complete fan replacement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The snap-fit connector system provides a secure and vibration-resistant attachment of blades, preventing loosening and sagging, and simplifies the cleaning process by allowing easy blade removal without tools, while also facilitating décor changes without replacing the entire fan.
Implementation Method 1
a set of biased snap pins corresponding to the set of through openings to define complementary pairs of snap pins and through openings. Wherein at least one of the first and second elements is integrally formed as part of the blade iron, and when the blade root is moved along the insertion path, the set of biased snap pins moves out of the insertion path until the through openings align with the set of biased snap pins, which are then biased into the through openings.
Data Source
AI summary
A ceiling fan assembly having a motor housing with at least one blade iron. At least one blade extending from a root to a tip, and having a set of multiple, spaced, through openings at the root. A snap-fit connector securing the at least one blade to the blade iron and comprising a first element and a second element, spaced from the first element to define an insertion path for the root of the blade.