Omnidirectional Ceiling Fan With Rotating Support Unit

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Solution Overview

Problem

Conventional ceiling fans are limited to directional airflow due to their design, which restricts the wind blowing range to the angle of each fan blade, failing to provide omnidirectional airflow.

Innovation Solution

A fan design comprising a fan body with blades extending from the inside to the outside, a central shaft, a support unit, and a rotary device that allows 360-degree rotation, enabling the fan to generate omnidirectional airflow by rotating the support unit and fan body relative to the central shaft.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional ceiling fan design is used, then the fan structure is simple, but the wind blowing range is limited to directional airflow

Engineering Contradiction:
Improvewind blowing rangeVSAvoidfan structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the fan body rotatable relative to the central shaft through a rotary device. This allows the fan to change its orientation dynamically, transforming from a fixed directional airflow system to an omnidirectional airflow system. The support unit can rotate the fan body to any angle, enabling the fan to blow air in multiple directions as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the fan system into distinct functional components: the fan body with blades, the central shaft, the support unit, and the rotary device. This segmentation allows each component to perform its specific function independently while working together to achieve omnidirectional airflow. The fan body generates airflow, the support unit provides rotational movement, and the rotary device controls the orientation.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the fan can rotate 360 degrees, then omnidirectional airflow is achieved, but the device complexity increases

Engineering Contradiction:
Improveairflow direction controlVSAvoidrotating mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support unit serves multiple functions: it supports the fan body, enables rotational movement, and controls the orientation of the fan blades. By making the support unit rotatable, it becomes a multi-functional component that handles both structural support and directional control, reducing the need for separate complex mechanisms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The rotary device acts as an intermediary mechanism between the central shaft and the fan body. It mediates the rotational movement, allowing the fan body to rotate relative to the central shaft in a controlled manner. This intermediary component simplifies the overall mechanism by providing a dedicated rotation control system.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 fan effectively generates continuous 360-degree airflow, significantly increasing the range of blowing airflow and allowing for adjustable airflow direction by stopping the actuating motor at specific angles.

Implementation Method 1

The fan body (10) has a motor (11)

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

The blades (12) each extend from the inside to the outside. Each of the blades (12) has a windward surface (13)

Methodology Applied
Scientific EffectAerodynamic force: Aerofoil

Implementation Method 3

The rotary device (70) is connected with the central shaft (20) and fixed to the support unit (30). The rotary device (70) drives the support unit (30) to rotate relative to the central shaft (20)

Methodology Applied
Scientific EffectMechanical transmission: Gear

Data Source

PatentUS10808709B2Fan capable of generating omnidirectional airflow
Publication Date: 2020.10.20 AIR COOL INDAL
  • US10808709B2 patent drawing
  • US10808709B2 patent drawing
  • US10808709B2 patent drawing

AI summary

A fan capable of generating omnidirectional airflow includes a central shaft and a fan body. A windward surface of each of blades of the fan body and a radial direction of a motor of the fan body are perpendicular to each other. The central shaft is perpendicular to an axial direction of the motor. The fan body is connected with one side of a support unit. The central shaft is connected with a rotary device. The central shaft is fixed to the support unit. The rotary device can drive the support unit to rotate relative to the central shaft. When the fan is actuated, the blades generate 360-degree outward airflow, and the support unit is rotated by the rotary device so that the fan can generate omnidirectional airflow.