Dual-Tower Blower with Coanda Effect Airflow Direction Control
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Solution Overview
Problem
Existing blowers face challenges in effectively and efficiently adjusting airflow direction without consuming excessive power, particularly in providing a uniform airflow distribution and controlling airflow patterns.
Innovation Solution
The blower design incorporates a dual-tower structure with discharge ports and air flow converters that utilize the Coanda effect, combined with a fan system and adjustable air flow guides to direct airflow horizontally and upwardly, allowing for precise control of airflow patterns and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independently driven motors are used to adjust blowing direction, then airflow direction control capability is improved, but power consumption increases
Solution Approach 1:
The blowing device is divided into two functional parts: a fixed blower that generates airflow and a movable Coanda effect plate that directs airflow. This segmentation allows direction control without moving the entire blower, reducing power consumption while maintaining adaptability.
Solution Approach 2:
The Coanda effect plate acts as an intermediary between the fixed blower and the environment. It receives airflow from the blower and redirects it to different directions, enabling versatile airflow control without requiring multiple motors to move the blower itself.
2Measurement precision
If the blower structure is made complex to achieve precise airflow control, then airflow direction adjustment precision is improved, but device complexity increases
Solution Approach 1:
The Coanda effect plate is designed to be movable rather than fixed, allowing dynamic adjustment of airflow direction. This dynamic element provides precise control capability while maintaining a relatively simple overall structure compared to multi-motor systems.
Solution Approach 2:
The system controls airflow direction by changing the position parameter of the Coanda effect plate. This single parameter change approach simplifies the control mechanism while achieving precise airflow direction adjustment.
3Stability of the object's composition
If airflow distribution is made more uniform through additional control mechanisms, then airflow uniformity is improved, but device complexity increases
Solution Approach 1:
The Coanda effect plate serves multiple functions: it directs airflow to different directions and also helps distribute airflow uniformly across the target area. This multi-functionality achieves airflow uniformity without adding separate control mechanisms.
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 design enables efficient airflow direction adjustment, enhancing airflow uniformity and control, reducing power consumption while promoting indoor air circulation and convection.
Implementation Method 1
a dual-tower structure with discharge ports and air flow converters that utilize the Coanda effect
Data Source
AI summary
A blower includes a first extension having a first discharge port formed in a first wall, a second extension having a second discharge port formed in a second wall facing and spaced apart from the first wall, a fan provided below the first and second extensions to guide air toward each of the first tower and the second tower, a first gate provided inside the first tower or protruding from the first wall, a second gate provided inside the second tower or protruding from the second wall, a first guide motor to change a position of the first gate, and a second guide motor to change a position of the second gate.