Flow Separating Unit for Refrigerator Air Recirculation Control
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Solution Overview
Problem
Household appliance components, such as refrigeration units, face inefficiencies in heat dissipation and ventilation, leading to increased energy consumption and reduced component lifespan due to recirculation of airflows.
Innovation Solution
A flow separating unit is mounted on the outer wall of freestanding appliances to separate airflows, diverting expelled air back towards the rear and directing it towards the front, creating an efficient cooling circuit by preventing airflow recirculation and enhancing ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If airflows are not separated, then the appliance structure remains simple, but heat dissipation efficiency deteriorates due to airflow recirculation
Solution Approach 1:
The appliance structure is segmented by introducing a flow separating unit that divides the internal space into distinct airflow regions. This segmentation prevents hot air recirculation by creating separate pathways for intake and exhaust airflows, thereby improving heat dissipation efficiency without requiring complex active control systems.
Solution Approach 2:
A flow separating unit acts as an intermediary element between the heat-generating components and the external environment. This intermediate structure guides and separates airflows, ensuring that exhausted hot air does not recirculate back to the intake, thus enhancing thermal management while maintaining a relatively simple overall appliance design.
2Use of energy by moving object
If airflow recirculation occurs, then the ventilation system remains simple, but energy consumption increases due to reduced cooling efficiency
Solution Approach 1:
The ventilation system is segmented into distinct airflow zones by the flow separating unit, which creates separate channels for cool air intake and hot air exhaust. This segmentation ensures that energy-efficient cooling is achieved by preventing hot air recirculation, while the structural addition remains relatively simple compared to active flow control systems.
Solution Approach 2:
The flow separating unit enables the ventilation system to self-regulate airflow patterns without requiring complex sensors or active control mechanisms. The passive structural design allows the system to automatically prevent hot air recirculation and maintain efficient cooling, reducing energy consumption without increasing system complexity.
3Duration of action of stationary object
If components are not cooled efficiently, then the cooling system remains simple, but component lifespan reduces due to thermal stress
Solution Approach 1:
The cooling system is enhanced by segmenting the airflow path with a flow separating unit, which ensures that cool air is directed efficiently toward heat-generating components while exhaust air is channeled away. This passive segmentation improves component cooling and extends lifespan without requiring complex active cooling mechanisms.
Solution Approach 2:
The flow separating unit serves as an intermediary structure that facilitates efficient heat transfer from components to the cooling airflow. By creating dedicated cooling zones and preventing hot air recirculation, this intermediate structure extends component lifespan while maintaining a relatively simple cooling system design.
4Object-affected harmful factors
If hot air recirculates, then the appliance structure remains compact, but noise increases due to inefficient airflow patterns
Solution Approach 1:
The appliance structure is segmented by the flow separating unit, which creates distinct pathways for intake and exhaust airflows. This segmentation prevents turbulent recirculation patterns that generate noise, allowing the appliance to maintain a compact form factor while reducing noise levels through improved airflow organization.
Solution Approach 2:
The flow separating unit acts as an intermediary that organizes airflow patterns within the compact appliance structure. By guiding airflows through separate, streamlined pathways, it prevents turbulent recirculation and associated noise, maintaining compact dimensions while reducing harmful noise levels.
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 solution improves heat dissipation, reduces energy consumption, extends component lifespan, and decreases noise by ensuring efficient airflow circulation and cooler air replacement around heat-generating components.
Implementation Method 1
a flow separating unit which is provided for separating at least two airflows
Data Source
AI summary
A household appliance apparatus, in particular a household refrigeration appliance apparatus, has at least one flow separating unit which is provided for separating at least two airflows. In order to provide improved properties with regard to a ventilation of heat-generating freestanding household appliance components, the flow separating unit is provided for mounting on an outer wall of a freestanding household appliance.