refrigerator
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Solution Overview
Problem
Conventional refrigerators often struggle with achieving uniform temperature distribution within the storeroom, leading to inefficiencies in maintaining the freshness of stored groceries.
Innovation Solution
The refrigerator design incorporates a cold air guide assembly that includes a rear guide and a top guide, which work together to direct cold air evenly throughout the storeroom, ensuring uniform temperature distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional refrigerators supply cold air without specialized guidance structures, then the device complexity is reduced and production costs are lowered, but the temperature distribution uniformity in the storeroom deteriorates
Solution Approach 1:
The cold air supply system is segmented into multiple cold air supply ports distributed across different locations (front, rear, top, bottom) of the storeroom. This segmentation allows cold air to be supplied from multiple zones simultaneously, creating more uniform temperature distribution without requiring complex centralized guidance structures.
Solution Approach 2:
The patent transitions from a single-point or single-plane cold air supply to a multi-dimensional supply system with ports positioned at front, rear, top, and bottom locations. This spatial distribution across multiple dimensions enables comprehensive temperature uniformity without adding complex guidance mechanisms.
2Speed
If cold air is supplied rapidly to cool the storeroom quickly, then the cooling speed is improved, but temperature distribution uniformity deteriorates due to localized cold spots
Solution Approach 1:
The cold air supply is divided into multiple streams through distributed cold air supply ports located at front, rear, top, and bottom positions. This segmentation allows rapid cooling to occur simultaneously from multiple locations, preventing localized cold spots while maintaining high cooling speed through parallel heat extraction.
Solution Approach 2:
The system provides excessive cold air supply capacity by distributing multiple cold air supply ports throughout the storeroom. This ensures that even during rapid cooling, sufficient cold air reaches all regions simultaneously, preventing temperature uniformity deterioration while achieving fast cooling performance.
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 enhances the uniformity of temperature distribution within the storeroom, reduces temperature differences between different compartments, and allows for faster cooling and better preservation of groceries.
Implementation Method 1
a cold air supply device for supplying cold air to the storeroom
Data Source
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AI summary
A refrigerator includes an outer case, an inner case coupled to the outer case and equipped with a storeroom, a heat exchanger disposed adjacent to the storeroom to supply cold air, and a front cover defining one side of the storeroom. The front cover includes at least one end having a recessed portion that forms a cold air supply port to supply cold air supplied from the heat exchanger into the storeroom.