Air discharge device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air discharge devices struggle to increase the reaching distance of air flow due to diffusion issues when using a flat-shaped air outlet, as air is easily dispersed in the minor direction, reducing the effectiveness of air distribution.
Innovation Solution
The air discharge device incorporates a duct with a throttle portion to reduce the flow path height and partitions to divide the main flow path into side and center flow paths, with the center flow path having a gradually reduced width, enhancing air velocity and restricting diffusion in the minor direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flat-shaped air outlet is used, then the air discharge device can achieve a compact design and easy installation, but the air flow easily diffuses in the minor direction, reducing the reaching distance
Solution Approach 1:
The air outlet is divided into multiple independent holes (first hole, second hole, third hole, fourth hole) arranged in a specific pattern. This segmentation allows each hole to contribute to the overall air flow while maintaining a compact flat-shaped outlet structure, preventing excessive diffusion and extending the reaching distance
Solution Approach 2:
Different regions of the air outlet have different hole configurations - the first and second holes are positioned at specific locations with particular orientations. This local differentiation optimizes the air flow distribution, ensuring that the compact flat shape does not compromise the reaching distance
2Speed
If the flow path height is reduced to increase air velocity, then the air velocity and reaching distance improve, but the flow path becomes more restricted and may increase pressure loss
Solution Approach 1:
The flow path height is designed to vary dynamically along the flow direction - it is reduced in the downstream region where the throttle portion is located to increase air velocity, while maintaining adequate height in upstream regions. This dynamic configuration optimizes velocity without excessive pressure loss
Solution Approach 2:
The throttle portion changes the geometric parameter of flow path height to control air velocity. By adjusting this parameter in the downstream region, the system achieves higher air velocity and extended reaching distance while managing pressure characteristics
3Length of moving object
If partitions are added to divide the flow path into multiple channels, then the air velocity distribution is equalized and reaching distance improves, but the device structure becomes more complex
Solution Approach 1:
The flow path is segmented into multiple channels using partitions, creating first, second, third, and fourth holes. This segmentation equalizes air velocity distribution across different regions, ensuring uniform flow characteristics that extend the reaching distance while maintaining a manageable structural complexity
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 equalizes air velocity distribution, increases air velocity in the center flow path, and restricts diffusion in the minor direction, resulting in a longer reaching distance of the air flow even with a flat-shaped air outlet.
Implementation Method 1
A throttle portion 515 is provided in the duct 51 to reduce a flow path height of the main flow path 510 from an upstream of an air flow toward a downstream of the air flow
Implementation Method 2
A plurality of partitions 52, 53 are arranged to divide the main flow path 510 into a pair of side flow paths 510A, 510B located at both sides in a major direction, and at least one center flow path 510C located between the pair of side flow paths
Data Source
AI summary
The air discharge device includes a duct defining: a main flow path through which an air flow passes; and a main hole opened in a flat shape to discharge the air flow as a working air flow toward a downstream from the main flow path. A throttle portion is provided in the duct to reduce a flow path height of the main flow path from an upstream of the air flow toward a downstream of the air flow. A plurality of partitions are arranged to divide the main flow path in a major direction into a pair of side flow paths and at least one center flow path. The plurality of partitions are disposed in the duct such that a flow path width of the center flow path is reduced from the upstream of the air flow toward the downstream of the air flow.