Refrigerator and method of controlling the same
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Solution Overview
Problem
Existing refrigerator control methods fail to accurately adjust cooling output based on the temperature difference between the storage space and reference temperatures, leading to large variations in temperature and inefficiencies in maintaining optimal storage conditions.
Innovation Solution
A method and system for controlling a refrigerator that includes a controller to adjust the cooling device output based on the representative temperature of the storage space, using a convergence temperature range and multiple methods to determine optimal operation, thereby maintaining a consistent temperature and reducing temperature variation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the cooling output is determined by the average output of previous cooling output and delay output, then the control method is simple, but the magnitude of temperature difference between storage space temperature and reference temperature is not reflected, and output variation is large
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors the storage space temperature and adjusts the cooling device output accordingly. When the temperature exceeds the reference temperature, the cooling output is increased; when the temperature is below the reference temperature, the cooling output is decreased. This closed-loop feedback system ensures that the cooling output dynamically responds to temperature variations, achieving precise temperature control while maintaining operational simplicity.
2Stability of the object's composition
If the cooling device operates frequently to maintain temperature, then the temperature stability is improved, but the noise and power consumption increase
Solution Approach 1:
The patent employs dynamic output adjustment of the cooling device based on real-time temperature monitoring. Instead of operating at fixed intervals or constant output, the cooling device operates at variable output levels that dynamically adapt to the actual temperature conditions. This dynamic control strategy allows the system to maintain temperature stability while minimizing unnecessary operations, thereby reducing power consumption and noise generation.
Data Source
AI summary
A method for controlling a refrigerator includes operating a cooling device at a previously-determined output for cooling a storage space; measuring, by a temperature sensor, a temperature of the storage space in unit times; determining a representative temperature of the storage space based on the temperature measured by the temperature sensor, and determining whether the determined representative temperature of the storage space falls within a convergence temperature range, when an output change time is reached after the output of the cooling device is previously determined; maintaining the output of the cooling device or determining the output of the cooling device according to one of a plurality of methods including a first method and a second method when the representative temperature of the storage space falls within the convergence temperature range, and determining the output of the cooling device according to the second method when the representative temperature of the storage space is out of the convergence temperature range; and operating the cooling device at the determined output.