Refrigerator Defrosting Control to Avoid Ice Maker Cycle Disruption
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Solution Overview
Problem
Current refrigerator defrosting methods either disrupt ice making cycles, leading to extended cycles and increased energy consumption, or delay defrosting, risking frost jams and system inefficiencies.
Innovation Solution
A control method that detects the cumulative running time of the compressor and the working state of the ice maker to perform defrosting only after the ice making cycle is completed, thereby avoiding defrosting during active ice making and reducing the risk of frost jams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If defrosting is performed when the compressor meets specific running time without distinguishing ice maker working state, then the defrosting operation can be executed, but the temperature of ice making chamber rises sharply and ice making cycle is extended
Solution Approach 1:
The defrosting control system dynamically adjusts its behavior based on the real-time working state of the ice maker. The controller continuously monitors whether the ice maker is in the running state and adapts the defrosting timing accordingly, transitioning from a static time-based defrosting approach to a dynamic state-aware control strategy.
Solution Approach 2:
The system performs preliminary judgment about the ice maker's working state before initiating defrosting operation. By checking the ice maker state in advance and planning defrosting timing beforehand, the system avoids conflicts between defrosting and ice making cycles, ensuring defrosting only occurs when it will not disrupt active ice making.
2Productivity
If defrosting operation is delayed when ice maker is in working state, then ice making continues normally, but the compressor downtime is delayed and frost jam risk increases
Solution Approach 1:
The control system continuously monitors the ice maker's working state and provides feedback to the defrosting control logic. This feedback mechanism enables the system to make real-time decisions about defrosting timing, balancing the need to maintain ice making continuity while preventing frost accumulation that could lead to jams.
Solution Approach 2:
The system changes the defrosting timing parameter based on the ice maker's working state. When the ice maker is running, the defrosting time parameter is adjusted to occur after the ice making cycle completes. This parameter adaptation allows the system to maintain both ice making productivity and reliability by optimizing defrosting timing according to operational conditions.
3Duration of action of stationary object
If defrosting is performed during ice making cycle, then defrosting operation is executed, but energy consumption increases
Solution Approach 1:
The system performs preliminary assessment of the ice maker's operational status before scheduling defrosting. By evaluating whether the ice making cycle is currently active and planning defrosting accordingly, the system avoids energy-wasting scenarios where defrosting would interrupt ice making, thereby reducing unnecessary energy consumption.
Data Source
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AI summary
A refrigerator and a control method, device and system therefor. The control method comprises: detecting and confirming that the cumulative running time of a compressor is at least a running time threshold, and an ice maker is in a working state at present, and controlling the ice maker to perform an defrosting operation after a current ice making period is ended, the running time threshold being a time difference between the defrosting period of the refrigerator and the ice making period of the ice maker. According to the control method of the refrigerator, defrosting in the ice making period can be avoided, and therefore, the influence of defrosting on ice making of the ice maker can be reduced, the ice making efficiency and the ice making capacity if the ice maker can be effectively promoted, the ice making period is shortened, energy consumption is reduced, and produce reliability is improved.