Refrigeration appliance and method for operation
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Solution Overview
Problem
Refrigeration appliances face challenges in powering user interface panels positioned at doors due to cost and structural constraints, as routing electrical components through the door can be costly and limit door positioning options.
Innovation Solution
A refrigeration appliance system where the door includes an energy source, switches, and communications devices that allow energy to flow to the user interface when the door is open and disconnect when closed, enabling wireless communication with the cabinet's controller without the need for physical wiring through the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power is provided through the door to the user interface panel, then the user interface can be positioned at the door, but the cost increases and door positioning flexibility is reduced
Solution Approach 1:
The patent extracts the power source from the cabinet and places it within the door assembly itself. The door includes its own battery-powered energy source that independently powers the user interface panel, switches, and communications devices, eliminating the need to route electrical wiring through the door from the cabinet.
Solution Approach 2:
The patent replaces the mechanical/electrical wiring system with a wireless communication system. The door assembly includes wireless communications devices that communicate with the cabinet controller without physical connections, and the magnetic switch uses magnetic field interaction rather than direct electrical contact to detect door state.
2Reliability
If extensive wiring is installed through the door for power and communication, then reliable power and signal transmission is achieved, but door positioning options are limited and installation complexity increases
Solution Approach 1:
The patent makes the door assembly dynamically independent by equipping it with its own power source. The door can be positioned in various configurations (different hinge locations, left or right side mounting) without being constrained by fixed wiring routes from the cabinet, as the power and communication systems are self-contained within the door.
Solution Approach 2:
The patent introduces wireless communication as an intermediary between the door and cabinet, replacing physical wiring. The wireless communications devices transmit control signals and data without requiring electrical connections, and the magnetic switch uses magnetic field interaction as an intermediary to detect door open/closed state without direct contact.
3Ease of operation
If the user interface panel is positioned at the door, then user accessibility is improved, but the cost of providing power through the door becomes prohibitive
Solution Approach 1:
The patent extracts the power source from the cabinet's centralized electrical system and places it within the door assembly. The door includes a battery-powered energy source that independently powers the user interface panel, eliminating the need for expensive wiring modifications to route power through the door from the cabinet.
Solution Approach 2:
The door assembly becomes self-sufficient by incorporating its own energy source. The door's power system serves itself independently without requiring external power delivery infrastructure from the cabinet, making the user interface positioning at the door cost-effective.
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 cost-effective and flexible door positioning without the need for extensive wiring, enabling efficient operation of the user interface and communication systems while maintaining energy efficiency.
Implementation Method 1
the first switch is configured to operably couple the energy source to the second switch to allow energy to flow to the second switch, the second communications device, and the user interface device when the door is open. The first switch is configured to discontinue energy flow to the second switch when the door is closed.
Implementation Method 2
The second communications device is in selective operable communication with the first communications device.
Data Source
AI summary
A refrigeration appliance and method for operation are provided. The appliance includes a cabinet and a door. The cabinet includes a controller, a first communications device, and a magnetic device. the door includes an energy source, a first switch, a second switch, a second communications device, and a user interface device. The second switch is operably coupled to the second communications device and the user interface device. The second communications device is in selective operable communication with the first communications device. The first switch is configured to operably couple the energy source to the second switch to allow energy to flow to the second switch, the second communications device, and the user interface device when the door is open. The first switch is configured to discontinue energy flow to the second switch when the door is closed.