refrigerator
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Solution Overview
Problem
Conventional refrigerators often have large temperature fluctuations in storage chambers, which can degrade the quality of stored goods, especially those sensitive to temperature changes, as they lack efficient temperature control mechanisms for maintaining precise temperature ranges.
Innovation Solution
The refrigerator incorporates a temperature adjusting device with both cooling and heating mechanisms, along with an airflow forming system, to maintain a storage chamber temperature difference of less than 3°C, and features a partition member to divide the storage space into areas with different temperature ranges, allowing for independent temperature control of multiple compartments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single storage chamber is used without temperature control mechanisms, then the device complexity is reduced, but large temperature fluctuations occur degrading the quality of stored goods
Solution Approach 1:
The storage chamber is divided into multiple compartments by partition members, each capable of independent temperature control. This segmentation allows different zones to maintain different temperature ranges, preventing temperature fluctuations from affecting the entire storage space uniformly, thereby protecting goods quality without requiring complete system redesign
Solution Approach 2:
Different regions of the storage chamber are equipped with localized heating and cooling devices that can independently adjust temperature in specific zones. This local quality approach ensures that temperature-sensitive goods receive precise temperature control only where needed, reducing overall system complexity while maintaining reliability
2Manufacturing precision
If multiple compartments with independent temperature control are implemented, then precise temperature ranges are maintained, but the device complexity increases
Solution Approach 1:
The partition members are designed with multi-functionality, serving both as structural dividers and as integrated housings for temperature control devices. This universality reduces the need for separate mounting structures and control systems for each compartment, thereby achieving precise temperature control while limiting the increase in overall device complexity
Solution Approach 2:
Heating and cooling devices are merged into integrated temperature control units that can be independently activated. This merging approach consolidates control mechanisms within each partition, reducing the number of separate components and wiring harnesses, thus achieving manufacturing precision without excessive complexity
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 minimizes the quality reduction of stored goods by maintaining precise temperature ranges, ensuring that sensitive items are kept within optimal conditions, and allows for flexible storage of various goods with different temperature requirements.
Implementation Method 1
a cooling device for cooling the air in the storage chamber W
Implementation Method 2
a heating device for heating the air in the storage chamber W
Implementation Method 3
an airflow forming mechanism for forming an airflow in the storage chamber W
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A refrigerator includes a cabinet that forms a chamber, a partition wall configured to partition the chamber into a storage space and an air flow path, a partition shelf configured to partition the storage space into a first space and a second space, a heat exchanger provided in the air flow path, and a first damper provided in the air flow path to adjust air supplied to the first space. The top of the heat exchanger is lower than the bottom surface of the partition shelf. The first damper is provided at a height overlapping the partition shelf in a horizontal direction.