Dehumidifier Fixed Blade Assembly for Off-Center Air Flow Correction
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Solution Overview
Problem
Conventional dehumidifiers face inefficiencies due to off-center air discharge from the blowing fan, leading to uncontrolled air flow and reduced dehumidifying effectiveness.
Innovation Solution
The dehumidifier incorporates fixed blades and rotating blades with a dispersion plate to redirect and disperse air evenly, allowing for controlled air current direction and enhanced dehumidification efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a blower type blowing fan is used to discharge air, then the fan can provide sufficient blowing force, but the discharged air becomes off-center along the rotation direction, reducing dehumidifying efficiency
Solution Approach 1:
A guide vane assembly is introduced as an intermediary component between the blowing fan and the discharge opening. The guide vane includes multiple guide vanes that redirect the off-center air flow from the rotating fan into a straight, controlled current directed toward the discharge opening, thereby maintaining blowing force while improving dehumidifying efficiency
Solution Approach 2:
The guide vane assembly is segmented into multiple individual guide vanes arranged around the fan discharge. Each guide vane independently directs a portion of the air flow, collectively transforming the overall off-center flow pattern into a straight, uniform discharge current
2Device complexity
If the air current is not controlled toward a desired direction, then the blowing fan operates simply, but indoor dehumidifying efficiency is lowered
Solution Approach 1:
The guide vane assembly serves as a passive intermediary structure that automatically directs air flow without requiring complex active control mechanisms. The guide vanes are fixed in position and shape, providing straightforward air flow control while maintaining simple fan operation
Solution Approach 2:
The guide vane assembly is pre-configured with specific geometry and orientation to automatically correct the off-center air flow pattern before the air reaches the discharge opening. This preliminary directional correction ensures efficient dehumidification without requiring real-time adjustment or complex control
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 precise control over air discharge direction, improving dehumidification efficiency and user convenience by ensuring dehumidified air is directed as desired, while minimizing power waste.
Implementation Method 1
The blowing fan provides a suction force and a blowing force by rotating
Implementation Method 2
moisture included in the air is condensed on a surface of the evaporator
Data Source
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AI summary
Disclosed is a dehumidifier capable of dehumidifying an indoor space more efficiently. The present dehumidifier comprises: a body having an intake opening and a discharge opening; a blowing fan arranged inside the body so as to draw air into the body through the intake opening and to discharge the same to the outside through the discharge opening; a fan case having a duct arranged inside the body so as to provide a channel through which the air drawn by the blowing fan flows to the discharge opening; a heat exchanger arranged inside the body so as to remove moisture from the air that has flown into the body; and fixed blades that are fixedly installed inside the duct so as to split the air, which has flowed through the channel, to a plurality of discharge paths.