Refrigerator Bus-Based Lighting Control to Reduce Wiring Complexity
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Solution Overview
Problem
Existing cooling appliances require complex hardware and wiring for controlling lighting units, limiting the ability to individually control LEDs or light sources and offering limited flexibility in lighting scenarios.
Innovation Solution
A bus system connected to a control unit controls lighting units, allowing individual or segmented control of LEDs without elaborate wiring, enabling flexible lighting scenarios and dynamic control of multiple light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual control of LEDs or light sources is implemented, then lighting flexibility and control capability are improved, but hardware complexity and wiring requirements increase
Solution Approach 1:
A communication bus serves as an intermediary between the control unit and multiple lighting units, replacing complex individual wiring with a standardized multi-drop communication infrastructure. The bus system transmits control signals to address and control individual LEDs or groups of LEDs without requiring separate control wires for each light source.
Solution Approach 2:
The communication bus serves multiple functions simultaneously: it provides power to remote lighting units, transmits control signals for individual LED control, and enables communication between control units and lighting units. This multi-functional approach eliminates the need for separate dedicated control wiring for each LED.
2Adaptability or versatility
If multiple lighting units are controlled independently, then lighting scenario flexibility is improved, but control system complexity increases
Solution Approach 1:
The communication bus acts as an intermediary that simplifies control of multiple lighting units by providing a standardized interface. The control unit can independently control each lighting unit through the bus using addressing schemes, eliminating the need for complex point-to-point control connections and reducing overall control system complexity.
3Adaptability or versatility
If remote lighting units are powered from the control unit, then system scalability is improved, but voltage drop and power delivery issues increase
Solution Approach 1:
The communication bus serves as an intermediary power distribution network, delivering power from the control unit to remote lighting units while managing voltage levels and power delivery through standardized interfaces designed for scalable expansion.
Data Source
AI summary
The present invention relates to a refrigerator and/or freezer with a body containing a cooled interior space, which has a usable area for storing cooled and/or frozen goods, and one or more lighting units arranged in the cooled interior space and/or on the body, wherein a control unit is provided which is configured to output control signals to the lighting units, wherein a bus system is provided which is connected to the control unit and to the lighting units in such a way that the lighting units are controlled by the control unit using the bus system.