Ceiling Fan Blade Mounting Structure for Fast Stable Assembly
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Solution Overview
Problem
Conventional ceiling fans have cumbersome installation processes due to screw-based mounting of fan blades, leading to instability and reduced production efficiency.
Innovation Solution
A fan blade installing structure that uses a concave-convex engagement between a first and second engaged unit on a fixing base, allowing for quick installation and enhanced stability through increased contact area and additional locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fan blades are installed on the fixing base by screws, then the fan blade can be securely fixed, but the installation process becomes cumbersome and time-consuming
Solution Approach 1:
The fixing base is divided into multiple engaged units with engaged protrusions and engaged slots, allowing the fan blade to be secured through multiple discrete engagement points rather than requiring multiple screws. This segmentation enables quick alignment and connection while maintaining secure fixation.
Solution Approach 2:
The patent replaces the screw-based mechanical fastening system with a concave-convex engagement system consisting of engaged protrusions and engaged slots. This substitution eliminates the need for threading and tightening operations, allowing for rapid snap-fit installation while maintaining secure mechanical connection.
2Productivity
If fan blades are fixed only with screws, then the installation process is simple, but the fan blade shakes when rotating making the ceiling fan operate unstably
Solution Approach 1:
The fixing base incorporates multiple engaged units distributed across its surface, each providing a separate engagement point. This segmentation creates multiple contact areas between the fan blade and fixing base, distributing the mechanical load and preventing vibration-induced loosening that would occur with single-point screw fixation.
Solution Approach 2:
The patent combines multiple fixing functions into a single integrated engagement system. The engaged protrusions and engaged slots work together as a unified mechanism that simultaneously provides positioning, securing, and vibration resistance, eliminating the need for separate screws and washers while improving operational stability.
3Reliability
If multiple screws are used to fix fan blades, then the fan blade can be securely attached, but the number of installation processes increases reducing production efficiency
Solution Approach 1:
The patent merges multiple screw-fixing functions into a single integrated engaged unit system. Each engaged unit combines positioning features, securing mechanisms, and alignment guides into one component that interfaces with the fan blade as a single assembly, eliminating the need for multiple separate fastening operations.
Solution Approach 2:
The complex multi-step screw installation process is replaced with a simple single-step engagement operation. The engaged protrusions and engaged slots are designed to automatically align and engage when the fan blade is placed on the fixing base, eliminating threading, tightening, and verification steps required by traditional screw fastening.
Data Source
AI summary
A fan blade installing structure has a fixing base and a fan blade. The fixing base has a first engaged slot. The first engaged slot has an installing gap and a side gap. An end of the side gap connects to the installing gap. The first engaged slot has a first engaged unit on a side of the side gap. The first engaged unit is aligned with the installing gap. The fan blade has a second engaged unit. One of the first engaged unit and the second engaged unit has an engaged protrusion, and the other one of the first engaged unit and the second engaged unit has a second engaged slot. The second engaged unit moves into the side gap from the installing gap, and the engaged protrusion is limited in the second engaged slot, thereby limiting the fan blade in the first engaged slot.