Refrigerator with a thermoelectrically powered rapid freeze comparment
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Solution Overview
Problem
Existing refrigerators face challenges in maintaining a deep-freezing portion at cryogenic temperatures using thermoelectric modules due to difficulties in circulating cold air smoothly without reducing storage space and compromising durability.
Innovation Solution
A refrigerator design that incorporates a flow path on the inner surface of the deep-freezing portion, utilizing a basket connected to the door and defining gaps between the basket and the bottom surface to circulate cold air, with features like stepped, inclined, and bending portions to enhance airflow without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a flow path is additionally defined inside the deep-freezing portion, then cold air circulation is improved, but storage space is reduced and manufacturing complexity increases
Solution Approach 1:
The flow path is relocated from the interior space of the deep-freezing portion to the inner surface of the housing. By defining the flow path on the housing surface rather than inside the storage compartment, the invention enables effective cold air circulation while preserving the entire internal storage volume for food placement.
Solution Approach 2:
The flow path structure is extracted from the deep-freezing portion interior and repositioned to the housing inner surface. This separation allows the flow path to perform its cold air circulation function independently without occupying storage space within the deep-freezing portion.
2Speed
If a flow path is additionally defined inside the deep-freezing portion, then cold air circulation is improved, but device complexity increases
Solution Approach 1:
The flow path is integrated directly into the housing structure through stepped, inclined, and bending portions of the housing inner surface. By merging the flow path function with the existing housing structure, the invention eliminates the need for separate flow path components, thereby reducing manufacturing complexity while maintaining effective cold air circulation.
Solution Approach 2:
The housing inner surface is designed with localized stepped, inclined, and bending portions that create the flow path. These localized structural variations provide the necessary airflow guidance without requiring complex structures throughout the entire housing, simplifying manufacturing while achieving the desired circulation effect.
3Volume of moving object
If the basket is connected to the door at a lower position, then storage space is maximized, but cold air leakage increases
Solution Approach 1:
The flow path on the housing inner surface acts as an intermediary structure between the thermoelectric module and the basket. It guides cold air along a controlled path and delivers it to the basket at the lower position, enabling the basket to be placed at the optimal lower position for storage space while preventing uncontrolled cold air leakage through structured airflow management.
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 expands the inner space of the deep-freezing portion, ensures efficient cold air circulation, prevents leakage, and simplifies manufacturing and maintenance, while maintaining durability.
Implementation Method 1
a thermoelectric module (TEM) to satisfy the demand for the deep-freezing portion
Data Source
AI summary
The present invention relates to a refrigerator having a separate deep-freezing space which is partitioned inside a storage space of the refrigerator. Provided is a refrigerator having a flow path which allows cold air to circulate inside a deep-freezing chamber. According to an embodiment disclosed in the present document, a flow path portion is formed on one part of the inner surface of the housing which forms the inner space of the deep-freezing chamber. The flow path portion is formed in a stepped shape on the inner surface of the housing.