Insulation panel assembly for a refrigeration unit
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Solution Overview
Problem
Existing insulation panel assemblies for refrigeration units lack an efficient mechanism for creating a vacuum-insulated environment, which affects the thermal efficiency and energy consumption of refrigeration units.
Innovation Solution
The insulation panel assembly includes a structural enclosure with an evacuation hub and conduit system, where the evacuation hub defines a port extending from an inlet to an outlet with a groove around the inlet, and a conduit is engaged with the hub to align with the enclosure's aperture, allowing for the creation of a partial vacuum within the insulating cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a traditional insulation panel assembly is used without an evacuation mechanism, then the structure is simpler, but thermal efficiency is reduced due to lack of vacuum insulation
Solution Approach 1:
The insulation panel is divided into two separate panels (first panel and second panel) with an insulating cavity between them, allowing the evacuation system to be integrated into the assembly structure rather than adding a separate complex evacuation mechanism to a solid panel
Solution Approach 2:
The evacuation hub serves multiple functions: it provides the evacuation port for creating vacuum, acts as a sealing structure with the groove and protruding surround, and integrates the conduit connection point, thereby reducing the need for additional separate components
2Loss of energy
If an evacuation mechanism is added to create vacuum insulation, then thermal efficiency is improved, but the device complexity increases
Solution Approach 1:
The evacuation hub merges the evacuation port, sealing groove, and conduit connection into a single integrated component, reducing the number of separate parts and assembly steps while maintaining the vacuum insulation function
Solution Approach 2:
The groove is formed within the evacuation hub structure itself, and the protruding surround from the second panel nests into this groove, creating a compact integrated sealing arrangement that minimizes additional space and complexity
3Reliability
If the evacuation hub is positioned to align with the aperture, then vacuum sealing is effective, but manufacturing precision requirements increase
Solution Approach 1:
The groove and protruding surround create a mechanical interface that equalizes the alignment position between the evacuation hub and second panel, ensuring consistent positioning without requiring high-precision manufacturing tolerances
Solution Approach 2:
The groove and protruding surround arrangement allows the components to self-align during assembly, with the protruding surround naturally fitting into the groove to establish the correct position without requiring external alignment tools or complex fixtures
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 the formation of a vacuum-insulated environment, enhancing thermal efficiency and reducing energy consumption by effectively evacuating the insulating cavity and maintaining a partial vacuum, thereby improving the performance of refrigeration units.
Implementation Method 1
allowing for the creation of a partial vacuum within the insulating cavity
Data Source
Figure 1
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AI summary
An insulation panel assembly (12) for a refrigeration unit (10) includes a first panel (42), a second panel (44) coupled to the first panel (42), an evacuation hub (20) defining an evacuation port (22) that extends from an inlet (24) to an outlet (26) and a groove (28) that extends around the inlet (24), and a conduit (30) engaged with the evacuation hub (20). The second panel (44) defines an aperture (16) and includes a protruding surround (18) that extends around the aperture (16). The evacuation hub (20) is positioned such that the inlet (24) is aligned with the aperture (16) defined by the second panel (44) and the groove (28) receives the protruding surround (18) of the second panel (44) therein. Further, the conduit (30) extends into the evacuation port (22) via the outlet (26).