Ceiling Fan Multi-Stage Electronic Unit for Vibration and EMI Control
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Solution Overview
Problem
Conventional ceiling fans face issues with air stagnation, component fixation, vibration, noise, electromagnetic interference, pest access, and integration with air conditioning products, limiting their effectiveness and user convenience.
Innovation Solution
A ceiling fan design featuring a multi-stage electronic unit with a static fixing unit and a rotating unit, including a motor assembly with an outer rotor, a bridge support, and a display module, which allows for improved air circulation, reduced vibration, enhanced electromagnetic compatibility, pest control, and interoperation with air conditioning systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all components are integrally coupled with the rotating blade unit, then the structure is simplified, but visual information cannot be provided through lower components and vibration and noise increase
Solution Approach 1:
The ceiling fan is divided into two independent parts: a rotating blade unit and a static lower component unit. The blade unit rotates to generate airflow while the lower component unit remains stationary to provide visual information and reduce vibration and noise. This segmentation resolves the contradiction by allowing the structure to be simplified through integral coupling within each unit while preventing harmful factors through separation between units.
2Device complexity
If multiple electronic components are installed inside the motor assembly, then the control functions are integrated, but it becomes difficult to satisfy EMI and ESD standards
Solution Approach 1:
Multiple electronic components are extracted from the motor assembly and concentrated in the static lower component unit. This extraction improves EMI and ESD compliance by isolating sensitive electronic components from the electromagnetic environment of the rotating motor, while still achieving control function integration within the lower component unit.
3Adaptability or versatility
If the ceiling fan provides strong rotation power to move more components, then the functionality is enhanced, but vibration and noise increase
Solution Approach 1:
The ceiling fan components are segmented into rotating and static parts. Only the essential blade unit rotates to provide airflow functionality, while non-essential components are placed in the static lower component unit. This segmentation reduces the number of rotating components, thereby reducing vibration and noise while maintaining enhanced functionality through the static components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances air circulation, reduces noise and vibration, improves electromagnetic compatibility, prevents pest access, and enables seamless integration with air conditioning products for improved user convenience and efficiency.
Implementation Method 1
a motor assembly including a stator coupled to the shaft, and a rotor spaced apart from an outer circumferential surface of the stator and rotating
Data Source
AI summary
According to an embodiment of the present disclosure, a ceiling fan includes a shaft coupled to a ceiling or a wall surface, a housing cover provided at a central axis thereof with a shaft and receiving a motor assembly and an electronic unit, and a blade coupled to the housing cover. The electronic unit is provided in a multi-stage.