Bladeless Fan Nozzle Design for Smooth Directional Airflow
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Solution Overview
Problem
Conventional and bladeless fans produce uneven and turbulent airflow, and their nozzles inadequately guide high-speed airflow, leading to a multi-directional dispersion that reduces the effectiveness of the cooling effect.
Innovation Solution
A bladeless fan design with a base, support rod, and fan arm that allows for multiple axes of rotation and adjustment, combined with nozzles that emit airflow in a single direction, and includes a diffuser to evenly distribute airflow, enabling targeted airflow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a nozzle is used to guide high-speed airflow, then airflow direction control is improved, but the airflow disperses into a multi-directional pattern reducing cooling effectiveness
Solution Approach 1:
The fan arm is divided into multiple segments (first fan arm portion and second fan arm portion) that can rotate independently about different axes, allowing each segment to control airflow direction separately while maintaining coordinated operation to prevent multi-directional dispersion
Solution Approach 2:
The fan arm incorporates dynamic rotation capabilities about multiple axes (first axis perpendicular to surface, second axis parallel to surface, and third axis for fan arm portions), enabling the nozzle to adaptively guide airflow in the desired direction while preventing unwanted dispersion through real-time directional control
2Productivity
If conventional fans use blades to generate airflow, then airflow generation is achieved, but the airflow is uneven and turbulent reducing cooling effectiveness
Solution Approach 1:
The patent replaces the conventional blade-based mechanical airflow generation system with an impeller enclosed within a base, where airflow is generated internally and then directed through a support rod and fan arm assembly, eliminating the turbulent airflow characteristics of blade-based systems
Solution Approach 2:
The support rod acts as an intermediary component that channels airflow from the impeller in a controlled manner, and the fan arm serves as a secondary intermediary that further directs the airflow through its multi-axis rotation capability, ensuring smooth and uniform airflow delivery to the user
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 provides smooth, high-speed airflow in a single-directional pattern, allowing users to adjust airflow direction and intensity for precise cooling, enhancing the cooling effect.
Implementation Method 1
Rotation of an impeller within the base can generate airflow that is emitted from the fan arm
Implementation Method 2
combined with nozzles that emit airflow in a single direction, and includes a diffuser to evenly distribute airflow
Data Source
AI summary
A bladeless fan is provided. In one embodiment, a bladeless fan is provided having a base, a support rod extending from the base, and a fan arm movably coupled to the support rod. The base, the support rod, and the fan arm can include a first adjustment point configured to allow the fan arm to be positioned in a first horizontal orientation and a second vertical orientation, a second adjustment point configured to allow adjustment of a radial position of the fan arm around a longitudinal axis of the support rod, and at least one additional adjustment point configured to allow at least one of rotational adjustment of at least a portion of the fan arm about a longitudinal axis of the fan arm and adjustment of a distance between the base and the fan arm.