Ceiling Fan Driving Assembly Positioning Mechanism
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Solution Overview
Problem
Conventional ceiling fans experience instability and noise due to shaking fan blades and loosening of components during operation, leading to a poor user experience.
Innovation Solution
The proposed ceiling fan features a driving assembly with a motor shaft, upper and lower covers, a chamber, and a positioning mechanism, including a mounting cylinder and positioning mechanism, which enhances structural strength and stability, and a simplified assembly process to prevent noise and shaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fan blades are fixed on the mounting base by screws, then the assembly is simple, but the structure is prone to shaking and noise during operation
Solution Approach 1:
The patent merges the mounting base and rotor into a single integrated component, eliminating the need for separate screw connections between them. This integration removes the source of shaking and noise while maintaining assembly simplicity, as the unified structure is installed as one unit onto the ceiling mount.
Solution Approach 2:
The mounting base is designed to serve multiple functions: it provides structural support, houses the motor, and integrates the fan blade attachments. By making the mounting base multi-functional and integrated with the rotor, the design eliminates the need for separate connection mechanisms that cause instability.
2Strength
If multiple screws are used to fix components, then the assembly is secure, but the components are prone to loosening and making noises during operation
Solution Approach 1:
By integrating the mounting base and rotor into one unified structure, the patent eliminates multiple screw connections that could loosen over time. The integrated design maintains assembly strength while preventing the loosening issue that affects separate components.
3Ease of operation
If the driving assembly uses a simple mounting structure, then the assembly is easy to install, but the contact area between components is insufficient leading to noise
Solution Approach 1:
The integration of the mounting base and rotor creates a unified structure that simplifies installation while inherently increasing the contact area between components. This eliminates the need for separate mounting mechanisms that would reduce contact area and generate noise.
Data Source
AI summary
An assembling structure of a ceiling fan has a motor shaft and a driving assembly mounted on the motor shaft. The motor shaft is mounted through the driving assembly. The driving assembly has an upper cover, a lower cover, a chamber, a circuit board, and a positioning mechanism. The lower cover has a covering board and a mounting cylinder mounted in a center of the covering board, and is mounted on the motor shaft via the mounting cylinder. The chamber is formed between the upper cover and the lower cover. The circuit board is mounted in the chamber. The upper cover, the lower cover, and the circuit board are sequentially arranged from top to bottom. The positioning mechanism is mounted in the chamber and limits a mounting position of the circuit board. The present invention solves the noise issue.