Movable Air-Outlet Guide for Adaptive Drying Air Speed

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Solution Overview

Problem

Existing drying apparatuses have fixed air outlet areas, limiting the ability to adjust air speed or volume adaptively, resulting in low drying efficiency.

Innovation Solution

A drying apparatus with a movable guide member in the air-outlet channel that divides it into two sub-channels, allowing adjustment of air speed without changing the total air volume, using a rotation shaft to control the opening sizes of these sub-channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the air outlet area is fixed, then the structure is simple, but the air speed cannot be adjusted adaptively resulting in low drying efficiency

Engineering Contradiction:
Improvedrying efficiencyVSAvoidair outlet structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the guide member movable within the air outlet channel. The guide member can be adjusted to different positions to change the opening areas of sub-channels, transforming a static air outlet structure into a dynamic one that can adaptively control air speed while maintaining structural simplicity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies segmentation by dividing the single air outlet channel into multiple sub-channels through the guide member. This segmentation allows independent control of air flow paths, enabling adaptive air speed adjustment for different drying requirements while keeping the overall structure relatively simple

Inventive Principle:
Principle #1Segmentation

2Speed

If the air outlet area is changed to adjust air speed, then the air speed can be adjusted, but the air volume changes resulting in inefficient drying

Engineering Contradiction:
Improveair speedVSAvoidair volume
Core Design Contradiction:
SpeedVSQuantity of substance

Solution Approach 1:

The movable guide member creates dynamic sub-channels that can adjust air speed by changing flow path resistance and direction, not by changing the total outlet area. This allows air speed control while maintaining constant air volume

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Instead of adjusting air speed by changing the cross-sectional area (2D adjustment), the patent uses the guide member to control air flow in a different dimensional approach - by directing air flow paths and creating pressure differences through the movable guide structure, thereby maintaining constant air volume while achieving variable air speed

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Ensures efficient drying by allowing precise adjustment of air speed to match drying requirements without altering the total air output, enhancing drying efficiency.

Implementation Method 1

the guide member divides the air-outlet channel into a first sub-air-outlet channel and a second sub-air-outlet channel

Methodology Applied
Scientific EffectFluid flow division:

Implementation Method 2

a blowing mechanism having an airoutlet channel for conveying dry gas to the material

Methodology Applied
Scientific EffectGas flow convection: Convection

Data Source

PatentEP4474742B1Drying apparatus and oven
Publication Date: 2025.11.05 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • EP4474742B1 patent drawingFigure 1
  • EP4474742B1 patent drawingFigure 2
  • EP4474742B1 patent drawingFigure 3~4

AI summary

The present application relates to the field of drying technologies, and in particular to a drying apparatus and an oven. The drying apparatus is used for drying a material. The drying apparatus includes: a blowing mechanism having an air-outlet channel for conveying dry gas to the material; and a guide member movably arranged in the air-outlet channel and used for dividing the air-outlet channel into a first sub-air-outlet channel and a second sub-air-outlet channel, and a first air outlet of the first sub-air-outlet channel and a second air outlet of the second sub-air-outlet channel both facing the material. In the above way, the drying apparatus provided in the present application is capable of realizing adjustment of an air speed without changing an air volume, thereby ensuring the drying efficiency.