Refrigerator control technology
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Solution Overview
Problem
Current refrigerator designs require users to manually fill an ice making tray with water, store it in the freezing chamber, and manually separate the ice, which is inconvenient, and also lead to reduced refrigeration efficiency due to leakage of cool air when the door is opened.
Innovation Solution
A method of controlling a refrigerator that includes sensing whether an ice storage basket is attached or detached, controlling a fan to promote cool air movement to the ice making chamber, and using motors to remove ice based on the basket's attachment status, thereby optimizing ice production and retention while preventing cool air leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual ice making process is used, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The ice maker automatically detects when the storage basket is full and stops making ice without user intervention. The system self-regulates the ice making process by monitoring basket status and controlling the ice making chamber, eliminating the need for manual checking and removal of ice.
Solution Approach 2:
The system uses sensors to detect the storage basket's attachment status and ice level, then feeds this information back to the controller which adjusts the ice making operation accordingly. This closed-loop feedback mechanism enables automatic control based on real-time basket status.
2Ease of operation
If door is opened for ice retrieval, then ease of operation is improved, but loss of energy increases
Solution Approach 1:
The ice storage basket is extracted from the main refrigerator body and mounted on the door, creating a separate accessible ice storage compartment. This allows ice to be stored in a location that is easily accessible when the door is opened, while the main refrigeration system can remain closed to preserve energy.
Solution Approach 2:
The door-mounted storage basket acts as an intermediary between the ice making chamber and the user. Ice is transferred to this intermediate storage location on the door, allowing users to retrieve ice without opening the main refrigeration compartments, thus minimizing energy loss from cool air leakage.
3Ease of operation
If ice storage basket is detachable, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The system replaces mechanical attachment detection with optical or electromagnetic sensing. Sensors detect the presence or absence of the storage basket through non-contact means, reliably determining basket status without mechanical switches or physical contacts that could fail.
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 solution allows for easy ice retrieval, improved control over ice production time, and enhanced refrigeration efficiency by preventing cool air leakage when the door is opened, thus improving user convenience and reducing energy loss.
Implementation Method 1
controlling a fan to promote movement of cool air to an ice making chamber
Implementation Method 2
controlling the ice maker to freeze liquid water into ice
Data Source
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AI summary
Refrigerator control technology, in which cool air is supplied to an ice making chamber provided in a refrigerator. The refrigerator senses whether an ice storage basket is attached or detached, whether the ice storage basket is full of ice or not, and/or whether a refrigerator door is opened or closed. Based on the sensing, the refrigerator controls ice removal operations from the ice making chamber to the ice storage basket, ice dispensing operations from the ice storage basket, and/or cool air supply to the ice making chamber.