A back bar refrigerator appliance
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Solution Overview
Problem
Existing back bar refrigerator appliances face a trade-off between thermal insulation and consumer visibility, as glass doors provide visibility but are poor heat insulators, while solid insulated doors lack visibility.
Innovation Solution
A back bar refrigerator appliance with a door featuring an insulated panel and a window covering less than 75% of the outer surface, aligned with a shelf to provide visual access while minimizing energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a glass door is used to provide visibility of contents, then consumer visibility is improved, but thermal insulation deteriorates due to glass being a poor heat insulator
Solution Approach 1:
The door is segmented into two distinct parts: an insulated panel for thermal isolation and a window portion for visibility. This segmentation allows each part to fulfill its specific function optimally - the insulated panel minimizes energy loss while the window provides consumer visibility of the refrigerated contents.
Solution Approach 2:
Different parts of the door have different properties: the insulated panel has high thermal insulation properties while the window portion has high transparency. This local differentiation of qualities allows the door to simultaneously achieve both visibility and thermal insulation requirements in different locations.
2Loss of energy
If a solid insulated door is used to improve thermal insulation, then energy loss is reduced, but consumer visibility of contents deteriorates
Solution Approach 1:
The door is segmented into two distinct parts: an insulated panel for thermal isolation and a window portion for visibility. This segmentation allows each part to fulfill its specific function optimally - the insulated panel minimizes energy loss while the window provides consumer visibility of the refrigerated contents.
Solution Approach 2:
Different parts of the door have different properties: the insulated panel has high thermal insulation properties while the window portion has high transparency. This local differentiation of qualities allows the door to simultaneously achieve both visibility and thermal insulation requirements in different locations.
3Loss of information
If a large window is used to maximize visibility, then consumer visibility is improved, but thermal insulation deteriorates due to increased heat transfer through the window
Solution Approach 1:
Instead of making the window cover the entire door surface, only a partial portion of the door is made into a window. This partial action provides sufficient visibility for consumers to view contents while minimizing the window area to reduce heat transfer, thus maintaining better thermal insulation compared to a full-window design.
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
The solution allows for improved thermal insulation by reducing cold air dissipation through the door, while still providing consumers with visibility of the contents, thus balancing energy efficiency and consumer experience.
Implementation Method 1
the insulated panel of the door allows to reduce energy use by preventing dissipation of cold air inside the refrigerator through the surface of the door
Data Source
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AI summary
The present invention provides a back bar refrigerator appliance comprising a storage compartment and a door, wherein the door comprises an inner surface facing into the storage compartment when the door is closed and an opposite outer surface, wherein the door comprises an insulated panel and a window covering less than 75% of the outer surface of the door, and wherein the window is aligned with a shelf of the back bar refrigerator appliance to provide visual access to items positioned on the shelf.