Refrigerator and method for operating a refrigerator
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Solution Overview
Problem
Existing refrigerator systems lack accurate detection of drawer position and direction, leading to inefficient control of associated functions such as video recording and illumination.
Innovation Solution
A refrigerator with a movable drawer and sensors to detect the drawer's position, using a first sensor to determine if the drawer reaches a second location, and a control unit to manage power-consuming components like video recording and illumination based on these detections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is used to detect drawer position, then the control accuracy of drawer-related functions is improved, but the device complexity increases
Solution Approach 1:
The patent uses a trigger as an intermediary element that mechanically interacts with the sensor. The trigger is disposed on either the wall of the receiving chamber or on the drawer, and is staggered with the sensor at the first location. When the drawer moves to the second location, the trigger triggers the sensor, enabling accurate position detection through a simple mechanical-optical interaction without requiring complex sensor systems.
2Loss of energy
If the sensor detects drawer location to control power-consuming functions, then energy efficiency is improved, but the control system complexity increases
Solution Approach 1:
The patent implements a feedback control mechanism where the sensor detects the drawer's position (first location, second location, or third location) and provides feedback to the control unit. Based on this feedback, the control unit intelligently controls power-consuming functions such as video recording and illumination. For example, video recording is activated when the drawer reaches the second location, and illumination is controlled based on the detected drawer state, thereby reducing energy consumption while maintaining simple control logic.
Data Source
AI summary
A refrigerator includes a receiving chamber and a drawer movably received in the receiving chamber. The drawer is at a first location when it is closed. The refrigerator further includes a first sensor that is fixed to the drawer or a wall of the receiving chamber. The first sensor is configured to detect when the drawer reaches a second location. The first and second locations are spaced apart by a spacing distance.