Ceiling Fan Frame With Multi-Blade Seats
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Solution Overview
Problem
Conventional ceiling fans are limited by the number of frames, requiring increased motor speed to achieve airflow and necessitating complex blade manufacturing due to limited blade connection options.
Innovation Solution
The design allows multiple blades to be connected to each frame, with adjustable inclination angles and longer blade lengths, reducing the number of frames needed and simplifying manufacturing through casting and screw connections, while maintaining efficient airflow at lower motor speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If each frame is connected with only one blade, then the structure is simple, but the number of blades is limited and motor speed must be increased
Solution Approach 1:
Each frame is designed to support multiple blades (at least two blades per frame) through multiple connection seats positioned at different inclination angles. This multi-functional design allows a single frame to perform the function of multiple frames, increasing the number of blades without proportionally increasing frame complexity.
Solution Approach 2:
The frame structure incorporates seats at different inclination angles (different spatial dimensions) rather than a single-plane connection. This dimensional variation allows multiple blades to be attached to one frame at different angles, maximizing airflow generation while minimizing the number of frames needed.
2Productivity
If motor speed is increased to rotate limited blades, then airflow is improved, but energy consumption increases
Solution Approach 1:
The invention changes the inclination angle parameter of blade connection seats to optimize airflow generation. By positioning seats at specific angles (e.g., 45 degrees relative to the horizontal plane), the blades generate more effective airflow at lower rotational speeds, reducing motor energy consumption while maintaining productivity.
3Productivity
If blade inclination angle is customized, then airflow efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The frame structure is pre-designed with connection seats at the required inclination angles during the frame manufacturing process. This preliminary action eliminates the need for separate blade angle customization and machining operations, as blades can be directly attached to the pre-positioned seats at the correct angles.
Solution Approach 2:
The frame is segmented into multiple connection seats, each capable of independently holding a blade at a specific inclination angle. This segmentation allows for standardized, modular assembly where blades with standard angles can be attached to pre-configured seats, simplifying manufacturing while maintaining optimized airflow angles.
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
This configuration enhances airflow efficiency without increasing motor speed and reduces blade deformation, allowing for more blades with fewer frames, simplifying manufacturing and improving operational efficiency.
Implementation Method 1
a motor (911) is located within the body (91). A disk (95) is connected to and driven by the motor (911)
Implementation Method 2
The blades (97) are rotated to create air flow
Data Source
AI summary
A ceiling fan includes a body having a disk which is driven by a motor. Multiple frames are connected to the disk and each frame has a rod which is connected between at least two seats and the disk. The at least two seats each are positioned by an inclination angle relative to a horizontal plane. A height difference is formed between the at least two seats of each rod. A blade is connected to each of the at least two seats of each rod of each frame. The ceiling fan includes less number of seats while more blades are connected to the seats.