Refrigerator and control method thereof
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Solution Overview
Problem
Existing refrigerators face issues with excessive power consumption and overcooling when multiple storage compartments have differing temperature requirements, leading to inefficient emergency operations.
Innovation Solution
A refrigerator system that adjusts cooling power based on the temperature of each storage compartment during emergency operations, optimizing power usage by varying cooling power according to compartment temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the compressor operates with maximum cooling power during emergency operation, then the storage compartment temperature reaches the satisfactory region quickly, but power consumption increases significantly
Solution Approach 1:
The patent applies dynamics by making the cooling power adjustable rather than fixed at maximum. The control unit dynamically adjusts the cooling power of the compressor based on real-time temperature differences between storage compartments, allowing the system to adapt its energy consumption level to the actual cooling needs of each compartment.
Solution Approach 2:
The patent implements local quality by assigning different cooling powers to different storage compartments based on their individual temperature requirements. The control unit calculates separate temperature differences for the first and second storage compartments and adjusts the cooling power accordingly, ensuring each compartment receives appropriate cooling rather than uniform maximum cooling.
2Reliability
If the compressor operates with maximum cooling power for all storage compartments, then all compartments reach satisfactory temperature, but the higher temperature compartment experiences overcooling
Solution Approach 1:
The patent applies local quality by providing differentiated cooling power to different storage compartments based on their specific temperature needs. The control unit calculates the temperature difference for each compartment separately and adjusts the cooling power individually, ensuring that each compartment reaches its satisfactory temperature without overcooling.
Solution Approach 2:
The patent implements parameter changes by modifying the cooling power parameter according to the temperature conditions of each storage compartment. The control unit changes the cooling power level based on the calculated temperature differences, allowing precise control over the cooling process to prevent overcooling while ensuring temperature satisfaction.
3Stability of the object's composition
If the compressor operates continuously for extended periods to maintain temperature, then temperature stability is maintained, but power consumption increases
Solution Approach 1:
The patent applies dynamics by implementing dynamic cooling power adjustment based on real-time temperature monitoring. The control unit continuously monitors the temperature of each storage compartment and adjusts the compressor's cooling power accordingly, allowing the system to maintain temperature stability while minimizing power consumption by operating at the lowest necessary cooling level.
Solution Approach 2:
The patent implements feedback by using temperature sensors to continuously monitor the temperature of each storage compartment and feeding this information back to the control unit. The control unit processes this feedback and adjusts the cooling power to maintain temperature stability, ensuring the compressor operates only as much as needed to maintain the satisfactory temperature region.
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
Reduces power consumption and prevents overcooling by dynamically controlling cooling power based on compartment-specific temperatures, ensuring efficient temperature regulation.
Implementation Method 1
a refrigerator is a device that may store objects in a storage space for a long time or while maintaining a constant temperature by using cold air. The refrigerator includes a refrigeration system including a compressor and an evaporator to generate and circulate cold air.
Implementation Method 2
The refrigerator includes a refrigeration system including a compressor and an evaporator to generate and circulate cold air.
Data Source
AI summary
The present invention is configured such that, after operation-start conditions for load-responsive operation have been met and load-responsive operation has been implemented, if the in-compartment temperature inside a storage chamber, when a door is opened, satisfies operation-termination conditions or a change in the in-compartment temperature will satisfy operation-termination conditions, the load-responsive operation is terminated, Thus, excessive power consumption during load-responsive operation can be prevented, and thus it is possible to improve the power consumption resulting therefrom.