Insulation Panel Assembly with Evacuation Hub for Vacuum Insulation
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Solution Overview
Problem
Existing insulation panel assemblies for refrigeration units lack an efficient mechanism for evacuating the insulating cavity to create a partial vacuum, which is essential for effective insulation.
Innovation Solution
The proposed insulation panel assembly includes a structural enclosure with an aperture and a protruding surround, an evacuation hub with an inlet and outlet, and a conduit engaged with the evacuation hub. The evacuation hub is positioned such that the inlet aligns with the aperture, and the groove receives the protruding surround, allowing the conduit to extend into the evacuation port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an evacuation mechanism is added to the insulation panel assembly, then insulation efficiency is improved through partial vacuum creation, but device complexity increases
Solution Approach 1:
The evacuation hub combines multiple functions into a single component: it provides the evacuation port for vacuum creation, the groove for structural engagement with the protruding surround, and the alignment feature for the conduit. This integration improves insulation efficiency while minimizing the increase in device complexity by consolidating evacuation-related features into one hub structure rather than adding separate components.
Solution Approach 2:
The evacuation hub serves multiple purposes: it creates the partial vacuum for insulation, provides structural support through engagement with the protruding surround, and facilitates conduit alignment and positioning. This multi-functionality allows the assembly to achieve better insulation efficiency without proportionally increasing complexity, as one component performs several critical functions.
2Productivity
If the evacuation hub is precisely positioned with alignment features, then evacuation efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The groove and protruding surround are pre-formed during manufacturing, establishing the precise position of the evacuation hub relative to the insulation panel assembly before evacuation occurs. This preliminary positioning action ensures that when evacuation is performed, the inlet is already correctly aligned with the aperture, maximizing evacuation efficiency without requiring high-precision assembly operations later.
Solution Approach 2:
The protruding surround acts as an intermediary element that mediates between the structural enclosure and the evacuation hub. By providing a mechanical interface through the groove-protruding surround engagement, it ensures proper alignment and positioning of the evacuation hub, thereby improving evacuation efficiency while distributing the precision requirement across the manufacturing of these interfacing features rather than requiring extreme precision in the overall assembly.
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 configuration enables efficient evacuation of the insulating cavity, creating a partial vacuum that enhances insulation efficiency, reduces energy consumption, and improves the overall performance of the refrigeration unit.
Implementation Method 1
evacuating the insulating cavity to create a partial vacuum, which is essential for effective insulation
Data Source
AI summary
An insulation panel assembly for a refrigeration unit includes a first panel, a second panel coupled to the first panel, an evacuation hub defining an evacuation port that extends from an inlet to an outlet and a groove that extends around the inlet, and a conduit engaged with the evacuation hub. The second panel defines an aperture and includes a protruding surround that extends around the aperture. The evacuation hub is positioned such that the inlet is aligned with the aperture defined by the second panel and the groove receives the protruding surround of the second panel therein. Further, the conduit extends into the evacuation port via the outlet.