Method of operating a lighting assembly in a refrigerator appliance
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Solution Overview
Problem
Conventional refrigerator lighting systems lack versatility and the ability to communicate information regarding appliance operation, operating at a single, uniform intensity and color throughout the chilled chamber.
Innovation Solution
A refrigerator appliance with a lighting assembly comprising multiple zones corresponding to storage locations, controlled by a controller that can identify objects within the chamber and illuminate specific zones based on user requests or inventory management, providing customizable lighting configurations and improved user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional lighting systems operate at a single uniform intensity and color throughout the chilled chamber, then the lighting system is simple to control, but the lighting system lacks versatility and the ability to communicate information regarding appliance operation
Solution Approach 1:
The lighting assembly is divided into multiple independently controllable lighting zones corresponding to different storage locations within the chilled chamber. Each zone can be controlled separately to provide different intensities and colors, enabling versatile lighting configurations while maintaining manageable system complexity through modular control architecture
Solution Approach 2:
The lighting system transitions from static uniform illumination to dynamic zonal control, where each lighting zone can independently adjust its intensity and color based on different operational modes such as general illumination, object identification, and expiration alerts, thereby achieving versatility without proportionally increasing complexity
2Loss of information
If the lighting system illuminates the entire chilled chamber uniformly, then all areas are visible, but the system cannot provide targeted information about specific storage locations or objects
Solution Approach 1:
Different lighting zones can be activated with different intensities and colors based on local needs - for example, illuminating only the zone containing a requested object or using a specific color to indicate expiring food in a particular storage location, thereby reducing overall energy consumption while improving information communication
Solution Approach 2:
The lighting system receives input from the controller based on object location data and user requests, then provides visual feedback by selectively illuminating relevant zones. This feedback mechanism communicates appliance operation status and object locations efficiently without requiring full-chamber illumination
3Loss of information
If the lighting system provides multiple lighting zones with selective illumination, then targeted information about specific storage locations is communicated, but the control system becomes more complex
Solution Approach 1:
The control system manages complexity by segmenting the lighting control into discrete zones that correspond to physical storage locations. Each zone can be controlled independently based on simple rules or received input, reducing the overall controller complexity compared to managing a fully dynamic system while still providing detailed object location information
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
Enhances user interaction by selectively illuminating specific storage areas, aiding in locating items, providing recipe assistance, and alerting to expiring food, thus offering improved aesthetics and functionality.
Implementation Method 1
a lighting assembly (200) comprising a plurality of lighting zones (220) corresponding to the plurality of storage locations (210)
Data Source
AI summary
A refrigerator appliance includes a chilled chamber comprising a plurality of storage locations, a lighting assembly comprising a plurality of lighting zones corresponding to the plurality of storage locations, and a controller in operative communication with the lighting assembly. The controller is configured to receive a request to identify an object stored in the chilled chamber, determine that the object is located within a target location of the plurality of storage locations, identify a target lighting zone of the plurality of lighting zones that corresponds to the target location, and illuminate the target lighting zone.