Home appliance, particularly cooling device having at least one air flow system

Solution Overview

Problem

Existing cooling devices face issues with air interaction and frosting in evaporators due to different temperature zones, leading to inefficiencies and energy consumption.

Innovation Solution

The cooling device incorporates non-overlapping, aligned air input parts for each subpart to prevent air mixing and frosting, with dimensioned air input parts based on temperature and cooling capacity to enhance energy efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If air from multiple subparts with different temperature zones is allowed to interact and mix in the evaporator, then the evaporator can serve multiple cooling zones, but this leads to non-homogenous frosting and clogging in the evaporator

Engineering Contradiction:

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The evaporator is divided into multiple independent air input parts, each dedicated to a specific subpart or cooling zone. This segmentation prevents air from different temperature zones from mixing within the evaporator, eliminating non-homogenous frosting and clogging while allowing the evaporator to serve multiple zones simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Separate air transfer paths act as intermediaries between each subpart and the evaporator's air input parts. These dedicated pathways prevent direct interaction between air flows from different temperature zones, ensuring that each zone's air is cooled independently without causing frosting issues in the evaporator.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If separate air flow systems are provided for different subparts with different temperature degrees, then each subpart can be cooled independently, but this increases device complexity

Engineering Contradiction:

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

Multiple air flow systems are merged into a single evaporator unit with multiple air input parts. This consolidation allows independent cooling control for each subpart while reducing overall device complexity compared to having completely separate evaporators for each zone.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The evaporator is designed as a multi-functional component that can handle air from multiple subparts simultaneously through its multiple air input parts. This universal design enables a single evaporator to perform the cooling function for different temperature zones, reducing the need for multiple dedicated evaporators.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Use of energy by moving object

If air input parts are dimensioned based on temperature and cooling capacity requirements, then energy efficiency is improved, but manufacturing precision requirements increase

Engineering Contradiction:

Core Design Contradiction:

Use of energy by moving objectVSManufacturing precision

Solution Approach 1:

Each air input part of the evaporator is dimensioned with specific local qualities tailored to its designated subpart's temperature and cooling capacity requirements. This localized optimization improves energy efficiency for each zone while allowing standard manufacturing tolerances to be applied to each individual component.

Inventive Principle:

Principle #3Local quality

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

Prevents frosting and clogging in evaporators, optimizing energy usage by ensuring independent air flow to different temperature zones.

Implementation Method 1

an evaporator which is located in the related part and which provides a formation of cold air

Methodology Applied

Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 2

by using at least one related fan, at least one air transfer path which provides a transfer of cold air for passage of cold air by the related cold air input part from the evaporator to the related subpart

Methodology Applied

Scientific EffectForced convection: Forced Convection

Implementation Method 3

at least one air feeding channel which provides a transfer of the air, that is located in the related subpart, for feeding to at least one related air input part opening into the evaporator

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS20250354745A1Home appliance, particularly cooling device having at least one air flow system

Publication Date: 2025.11.20

AI summary

A cooling device includes at least two subparts provided in at least one part suitable for storage of at least one material, an inner rear wall in each subpart, at least one cold air input part on inner rear walls, an evaporator in the part forming cold air suitable for passage by the cold air input part to the subpart by at least one fan. At least one air transfer path transfers cold air by the cold air input part from the evaporator to the subpart. At least one air feeding channel transfers air in the subpart, for feeding to at least one air input part opening into the evaporator, by at least one air feeding opening in the subpart. At least two air input parts opening into the evaporator are substantially not overlapping with each other, aligned and side-by-side in a width direction.