Single Integrally Formed Fan Blade for Ceiling Motor
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Solution Overview
Problem
Conventional ceiling fans face issues with heat, vibration, and noise due to partial motor housing access, premature component failure in humid environments, imbalance, and increased material and assembly complexities, leading to safety hazards and resource inefficiencies.
Innovation Solution
A ceiling fan design featuring a single integrally formed fan blade with two equally weighted wing portions and a central passageway for the motor, along with a ring for attaching the center portion to the rotating flange, reducing the need for multiple blade irons and weights, and enhancing balance and air movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a motor housing with partial access to the rotating flange is used, then the fan motor can be concealed and protected, but heat, vibration, and noise increase into the surrounding environment
Solution Approach 1:
The patent combines the motor housing and fan blade into a single integrated structure. The motor housing serves dual functions: concealing/protecting the motor while simultaneously acting as the fan blade that moves air. This eliminates the need for separate blade irons and reduces heat transfer to the environment by enclosing the motor more completely.
Solution Approach 2:
The motor housing is designed to perform multiple functions: it protects the motor, conceals internal components, acts as the fan blade for air movement, and provides attachment points for the fan blade. This multi-functionality reduces the number of separate components needed and minimizes heat exposure to surrounding areas.
2Reliability
If multiple blade irons and blade combinations are used to attach fan blades, then the fan can be assembled, but fasteners wear out or corrode over time causing safety hazards
Solution Approach 1:
The motor housing and fan blade are merged into a single integrally formed structure, eliminating the need for separate blade irons and multiple fasteners. This integration removes corrosion-prone fasteners from the design and creates a more reliable attachment that cannot wear out like separate mechanical fasteners.
Solution Approach 2:
The patent extracts and eliminates the blade iron component from the traditional fan assembly. By directly integrating the fan blade to the motor housing, it removes the intermediate blade iron that would require fasteners, thereby eliminating the corrosion and wear issues associated with multiple fasteners.
3Stability of the object's composition
If multiple fan blade irons and blade combinations are required, then the fan can be assembled, but imbalance occurs requiring adjustment with fan blade weights
Solution Approach 1:
By merging the motor housing and fan blade into one integrally formed structure, the patent eliminates multiple separate components that would require assembly. This integration inherently provides balance since the single structure is manufactured as one piece, eliminating the need for separate weights and adjustments.
4Object-affected harmful factors
If a motor housing is used to conceal the fan motor, then the motor is protected, but additional manufacturing and assembly time is required
Solution Approach 1:
The motor housing and fan blade are merged into a single integrally formed structure, which can be manufactured as one piece using processes like injection molding. This eliminates the need for separate assembly steps for attaching blade irons and reduces manufacturing complexity, while still providing complete enclosure and protection of the motor.
Solution Approach 2:
The integrated motor housing performs multiple functions including motor protection, air movement, and structural support, reducing the total number of components that need to be manufactured and assembled. This multi-functionality streamlines both manufacturing and assembly processes.
5Adaptability or versatility
If different materials with differing weights and densities are used in motor housing and fan blade, then the fan can be constructed, but imbalance occurs during operation
Solution Approach 1:
By combining the motor housing and fan blade into one integrally formed structure manufactured from a single material, the patent eliminates the interface between materials of different densities. This ensures uniform weight distribution and inherent balance during operation, while still allowing selection from various suitable materials during the design phase.
Data Source
AI summary
A ceiling fan including a motor having a rotating flange; a single integrally formed fan blade, wherein the fan blade includes two substantially equally weighted wing portions disposed opposite each other; and a center portion disposed between and integrally formed with the two wing portions and having a passageway therethrough, wherein the passageway is sized such that the fan motor fits at least partially within the passageway; and means for attaching the center portion of the fan blade to the rotating flange of the motor is provided.