Duct member comprising a guiding element
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Solution Overview
Problem
Existing air ducts made of woven or nonwoven fabric or foil lack the ability to adjust air distribution according to real-time environmental conditions, necessitating additional adjustments after installation due to insufficient consideration of environmental factors.
Innovation Solution
An air duct with a wall of woven or nonwoven fabric or foil, equipped with a system of through holes and a movable regulating strip guided by a permeable or perforated material, allowing for adjustable airflow by aligning or covering the holes to adapt to changing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a textile duct with fixed perforations is used, then the duct maintains simple structure and ease of manufacture, but the air distribution cannot be adjusted after installation
Solution Approach 1:
The patent applies the dynamics principle by introducing a movable regulating strip that can shift positions along the duct. This strip contains through-holes that align with or cover the perforations in the duct wall, enabling dynamic adjustment of air distribution. The guiding element with longitudinal socket allows the regulating strip to move freely along the duct length, transforming a static duct into a dynamically adjustable system without fundamentally changing the duct's basic structure
Solution Approach 2:
The patent segments the air control function by separating it from the main duct structure. The regulating strip acts as an independent controllable component that can be adjusted separately from the duct itself. This segmentation allows the duct to maintain its simple textile construction while adding adjustment capability through a separate, movable element
2Adaptability or versatility
If a regulating mechanism is added to adjust air flow, then air distribution adaptability is improved, but the ease of operation and maintenance is reduced
Solution Approach 1:
The regulating strip is designed to be movable along the longitudinal direction of the duct, allowing operators to adjust air flow by simply shifting the strip to different positions. The guiding element ensures smooth movement while the locking element secures the desired position. This dynamic design maintains operational simplicity despite adding regulation capability
Solution Approach 2:
The guiding element acts as an intermediary between the regulating strip and the duct wall, providing a longitudinal socket that guides and constrains the strip's movement. This intermediary structure simplifies the adjustment operation by ensuring the regulating strip moves along a predetermined path and can be easily positioned and locked
3Manufacturing precision
If additional movable layers and guiding elements are added, then air passage control precision is improved, but the ease of manufacture is reduced
Solution Approach 1:
The patent segments the control system into distinct components: the duct wall with fixed perforations, the movable regulating strip with through-holes, and the guiding element with longitudinal socket. Each component can be manufactured separately with standard textile techniques, and their assembly is simplified by the modular design where the regulating strip simply needs to fit within the guiding element's socket
4Ease of operation
If the duct wall is made of woven or nonwoven fabric, then the duct maintains washability and flexibility, but the ability to precisely control air flow through fixed perforations is limited
Solution Approach 1:
By introducing the movable regulating strip, the patent transforms the static air flow control of the textile duct into a dynamic system. The regulating strip can be adjusted to different positions to control air flow, while the textile duct itself retains its washability and flexibility. The guiding element ensures the regulating strip moves smoothly along the duct length
Data Source
Figure 1~2
Figure 3a~4b
AI summary
A duct member (1,10) for air transportation and distribution, which comprises a wall (2,22) made of woven or nonwoven fabric or foil, wherein the wall is provided with a system of through holes (5,25) for air passage, the duct member (1, 10) further comprising at least one guiding element (6) for guiding a regulating strip (3) along at least some of the systems of holes (5, 25) for regulating the amount of the air distributed through the through holes (5, 25).