Refrigerator Design Enhancing Storage and Cooling Efficiency
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Summary
Problems
Traditional refrigerators have limited storage space due to the placement of the evaporator at the rear of the lowermost storage compartment, reducing the volume available for large items and complicating air circulation, which affects refrigeration performance and user convenience.
Innovation solutions
The design positions the air supply fan at the lower end of the air supply duct, allowing for increased size of the evaporator in the front-back direction and reduced height, thereby increasing storage compartment volume and improving air circulation, while maintaining efficient heat dissipation through optimized duct and fan placement.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the evaporator is positioned at the rear part of the lowermost storage space, then the cooling function is achieved, but the volume of the storage space is reduced and the depth is limited
Why choose this principle:
The evaporator is repositioned from the rear horizontal space to the lower vertical space beneath the storage compartment. This dimensional relocation allows the storage space to extend further back without the evaporator obstructing it, thereby increasing storage volume while maintaining the cooling function through the air supply duct system.
Principle concept:
If the evaporator is positioned at the rear part of the lowermost storage space, then the cooling function is achieved, but the volume of the storage space is reduced and the depth is limited
Why choose this principle:
An air supply duct is introduced as an intermediary component to transport cooled air from the evaporator (located in the lower space) to the storage compartment above. This mediator enables the separation of the evaporator from the storage space, allowing both components to occupy optimal positions without interfering with each other's function or space requirements.
Application Domain
Data Source
AI summary:
The design positions the air supply fan at the lower end of the air supply duct, allowing for increased size of the evaporator in the front-back direction and reduced height, thereby increasing storage compartment volume and improving air circulation, while maintaining efficient heat dissipation through optimized duct and fan placement.
Abstract
A refrigerator includes a lowermost storage liner, an evaporator, an air supply duct, and at least one air supply fan. A storage compartment and a cooling chamber positioned under the storage compartment are defined in the storage liner. The evaporator is disposed in the cooling chamber and is configured to cool air passing through the evaporator so as to form cooling air supplied to the storage compartment. The air supply duct is disposed in a space defined by the storage liner and is configured to convey the cooling air cooled by the evaporator to the storage compartment. The air supply fan is disposed in the air supply duct and is configured to promote air circulation between the cooling chamber and the storage compartment.