Multi-Directional Air Blower Frame Design to Reduce Airflow Diffusion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional air blowers with pseudo windows face challenges in directing airflows effectively, as the collided airflows tend to diffuse towards the edges from which no airflow is produced, making it difficult to send them in a predetermined direction.

Innovation Solution

An air blower design with a frame member having multiple blowout ports arranged to produce airflows from different directions, which collide and guide the air current forward, reducing diffusion and allowing for adjustable airflow direction through a controller that regulates fan speeds and flow rates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If airflows are blown out from two opposing edges and collide with each other, then the structure is simple, but the collided airflows diffuse toward the edges from which no airflow is produced, making it difficult to send them in a predetermined direction

Engineering Contradiction:
Improveairflow direction controlVSAvoidnumber of blowout ports
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The frame member is divided into multiple blowout ports (first, second, third, and fourth blowout ports) positioned at different locations and orientations. Each blowout port independently directs airflow in a specific direction, allowing segmented control of airflow patterns to prevent unwanted diffusion while maintaining overall system functionality.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If multiple blowout ports are arranged to produce airflows from different directions, then airflow direction control is improved, but the device complexity increases

Engineering Contradiction:
Improveairflow direction controlVSAvoidframe member structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Multiple blowout ports are integrated into a single frame member structure that surrounds the panel. The frame member combines several airflow generation functions into one unified component, reducing overall device complexity while maintaining the capability to produce controlled multi-directional airflow patterns.

Inventive Principle:
Principle #5Merging (Combining)

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 air blower effectively directs airflows from multiple directions, reducing diffusion and allowing for precise control over the airflow direction, enhancing the perceived airflow and its application in various environments.

Implementation Method 1

a fan that sends air to the blowout port

Methodology Applied
Scientific EffectFluid flow:

Implementation Method 2

the frame member produces airflows that are blown out from the first blowout port, the second blowout port, the third blowout port, and the fourth blowout port and collide with each other, thereby producing an air current going forward to the panel

Methodology Applied
Scientific EffectFluid collision:

Data Source

PatentEP3786388B1Blowing device
Publication Date: 2024.03.06 DAIKIN INDUSTRIES LTD
  • EP3786388B1 patent drawingFigure 1
  • EP3786388B1 patent drawingFigure 2
  • EP3786388B1 patent drawingFigure 3~4

AI summary

An air blower includes: a panel (3); a frame member (5) arranged to surround the panel (3) and having a blowout port (13a, 13b, 13c, 13d, 13e, 13f, 13g) of air formed therein; and a fan (11a, 11b, 11c, 11d, 11e, 11f, 30) that sends air to the blowout port (13a, 13b, 13c, 13d, 13e, 13f, 13g). The frame member (5) produces airflows that are blown out from at least three directions and collide with each other, thereby producing an air current going forward to the panel (3).