Dynamic Ceiling Fan Design for Safe and Easy Cleaning
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Summary
Problems
Ceiling fans are difficult to clean due to their height, often requiring large ladders and extendable poles, which poses safety risks and convenience issues.
Innovation solutions
A ceiling fan design that includes a multi-section shaft and a pitch change mechanism, allowing the fan assembly to be lowered for easy cleaning and the blades to be rotated for thorough cleaning, with the ability to change pitch for improved cleaning or air circulation.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the fan is mounted high on the ceiling, then the fan can effectively circulate air in large spaces, but the fan becomes difficult to clean and requires ladders and extendable poles
Why choose this principle:
The patent applies the dynamics principle by making the shaft movable between extended and retracted positions. The shaft can be extended to reach high ceilings for effective air circulation, then retracted to bring the fan blades within cleaning distance. This dynamic adjustment resolves the contradiction between maintaining high mounting effectiveness and enabling easy cleaning access.
Principle concept:
If the fan is mounted high on the ceiling, then the fan can effectively cool large buildings, but cleaning requires safety equipment and poses safety risks
Why choose this principle:
The movable shaft system allows the fan to operate at high mounting positions for effective building cooling while enabling safe cleaning by retracting the shaft. This eliminates the need for ladders and extendable poles, removing safety hazards while maintaining productivity during operation.
Application Domain
Data Source
AI summary:
A ceiling fan design that includes a multi-section shaft and a pitch change mechanism, allowing the fan assembly to be lowered for easy cleaning and the blades to be rotated for thorough cleaning, with the ability to change pitch for improved cleaning or air circulation.
Abstract
A fan is disclosed. The fan includes a base mountable to a ceiling; a base motor contained in the base; a multi-section shaft operably connected to the base motor and moveable between a collapsed position and an extended position; and a fan assembly connected to the multi-section shaft and including a fan motor and at least one fan blade operably connected to the fan motor, wherein in response to a signal, the base motor raises or lowers the fan assembly by moving the multi-section shaft between the collapsed position and the extended position