Ceiling Fan Suspension Detection via Electrical Conductivity
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Solution Overview
Problem
Conventional ceiling fans lack a reliable method to confirm proper suspension from the suspending part, especially in high or dark locations, leading to potential misinstallation.
Innovation Solution
Incorporation of a suspension detecting part that extends from the joint part to the suspending part, utilizing a protrusion and groove mechanism to detect the energized state and ensure proper installation, with a mechanism to stop operation if irregular attachment or deformation occurs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual confirmation is used to check suspension, then the structure remains simple, but the reliability of confirming proper suspension deteriorates in high or dark locations
Solution Approach 1:
The patent replaces visual confirmation (optical method) with an electrical detection system. The suspension detecting part uses electrical conductivity to detect whether the ceiling fan body is properly suspended from the suspending part, eliminating the need for visual inspection and providing reliable detection regardless of location or lighting conditions.
Solution Approach 2:
The patent introduces an electrical intermediary (suspension detecting part) between the suspending part and the control system. This intermediary component detects the electrical conductivity state to determine proper suspension, serving as a mediator that translates physical suspension state into detectable electrical signals.
2Reliability
If no detection mechanism is added, then the device complexity remains low, but the safety and operational reliability deteriorate due to potential misinstallation
Solution Approach 1:
The patent implements a feedback mechanism where the suspension detecting part continuously monitors the electrical conductivity state and provides feedback to the control unit. The control unit adjusts operation based on this feedback, enabling automatic detection and response to improper suspension conditions, thereby ensuring operational reliability.
Solution Approach 2:
The ceiling fan system performs self-detection and self-adjustment regarding its suspension state. The suspension detecting part automatically monitors the installation condition, and the control unit automatically responds by adjusting or stopping operation, eliminating the need for manual inspection and ensuring reliable operation.
3Productivity
If manual inspection is required, then the manufacturing cost remains low, but the loss of time and productivity deteriorates due to repeated installation checks
Solution Approach 1:
The patent performs preliminary detection of the suspension state during the installation process itself. The suspension detecting part is activated to check whether the ceiling fan body is properly suspended before full operation begins, allowing immediate detection and correction of installation issues without requiring separate inspection steps later.
Data Source
AI summary
A ceiling fan includes a suspending part fixed to a ceiling and a ceiling fan body suspended via the suspending part. The ceiling fan body has a plurality of horizontally-provided blades, a motor that rotates the blades, a shaft protruding from an upper side of the motor, and a joint part that is fixed to an upper side of the shaft and is connected to the suspending part. The joint part is detachable from the suspending part and is provided with a suspension detecting part extending from the joint part to the suspending part. The suspension detecting part detecting an energized state between the suspending part and the joint part.