Ceiling Fan Blade Arm Assembly With Ring Connector Stability
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Solution Overview
Problem
Ceiling fan blade arms are prone to looseness, deformation, and detachment over time due to weight and inertial impacts, leading to potential safety hazards and imbalance.
Innovation Solution
A fan lamp with a blade arm assembly featuring a mounting base and a ring-shaped connecting member with a hollow center, allowing detachable connection of multiple blade arms through a connecting groove and arc-shaped pieces, enhancing stability and connection strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If blade arms are directly connected to the mounting base by bolts, then the structure is simple and easy to assemble, but the connection strength is insufficient and blade arms become loose over time
Solution Approach 1:
The connecting member is divided into multiple arc-shaped pieces that can be separately assembled around the mounting base, allowing the connection structure to be built incrementally while maintaining simplicity. Each arc-shaped piece connects to adjacent blade arms, distributing the connection load and improving overall connection strength without requiring a complex single-piece structure.
Solution Approach 2:
A connecting member (ring-shaped structure) is introduced as an intermediary component between the mounting base and blade arms. This mediator provides additional connection points and distributes mechanical stresses, preventing direct bolt connections from failing under the weight and inertial impacts of the blades.
2Reliability
If blade arms are fixedly connected to prevent loosening, then connection stability is improved, but the ability to disassemble and transport is reduced
Solution Approach 1:
The connection between the connecting member and blade arms is designed to be dynamically adjustable - allowing easy assembly and disassembly during transport, but providing stable, rigid connection during operation. The arc-shaped pieces can be readily attached and detached, yet once assembled, they provide reliable connection strength to prevent loosening under operational loads.
3Device complexity
If multiple blade arms are connected with a single large connecting member, then the structure is simple, but the transportation and storage space required is large
Solution Approach 1:
The connecting member is segmented into multiple smaller arc-shaped pieces that can be compactly stored when not in use. These segments can be easily nested or stacked, significantly reducing transportation and storage space compared to a single large rigid connecting member, while still providing the same functional connection when assembled.
Solution Approach 2:
The arc-shaped pieces of the connecting member are designed to nest within each other or against the mounting base when disassembled, creating a compact storage configuration. This nesting arrangement minimizes the volume occupied during transportation and storage while maintaining the structural integrity and simplicity of the overall connection system.
Data Source
AI summary
A fan lamp with a blade arm assembly, includes a mounting base and a connecting member that is ring-shaped and has a hollow center. A plurality of blade arms are inserted into the mounting base, and each of the plurality of blade arms is connected with a respective blade, and the connecting member and the plurality of blade arms are detachably connected with each other. Connection strength between the blade arm and the mounting base is improved through insertion of the blade arm into the mounting base, and the plurality of blade arms surrounding a periphery of the mounting base are connected together through the connecting member, so that the blade arms, the mounting base and the connecting member are combined to form a new plane, which are integrated and is more difficult to fall off with ensured connection strength.