Vacuum Panel Refrigerator Cabinet Sealing for Lower Heat Loss
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Solution Overview
Problem
Conventional refrigerator cabinet structures face inefficiencies in insulation and structural stability, leading to increased energy consumption and reduced cooling performance due to gaps and lack of effective sealing mechanisms.
Innovation Solution
A vacuum panel cabinet structure is designed with a polymeric inner frame, vacuum insulated panels, and a barrier layer, combined with an outer enclosure and liner, featuring extruded support channels and a magnetic gasket for enhanced sealing and structural integrity, which minimizes heat loss and supports the cooling loop infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional insulation materials are used in refrigerator cabinet structures, then the cabinet can be manufactured with simpler materials and processes, but heat loss increases and insulation integrity deteriorates
Solution Approach 1:
The cabinet structure is divided into multiple vacuum sealed compartments, each containing vacuum insulated panels. This segmentation allows each compartment to maintain independent vacuum insulation, preventing heat transfer through the cabinet walls while enabling modular manufacturing and assembly of the overall structure.
Solution Approach 2:
Vacuum environments are created within sealed compartments of the cabinet structure. The vacuum eliminates air molecules that would otherwise conduct heat, providing superior thermal insulation. The vacuum sealed compartments maintain this inert environment while allowing the cabinet to be constructed with manageable complexity through modular design.
2Loss of energy
If vacuum insulated panels are used without proper sealing mechanisms, then insulation performance improves, but structural stability deteriorates due to gaps and poor sealing
Solution Approach 1:
The cabinet structure merges the vacuum insulated panels with the cabinet framework through integrated sealing mechanisms. The vacuum sealed compartments are structurally combined with the cabinet walls, ensuring that the insulation panels are firmly held in place while maintaining vacuum integrity. This merging prevents gaps and ensures both thermal performance and structural stability.
Solution Approach 2:
Sealing mechanisms act as intermediaries between the vacuum insulated panels and the cabinet structure. These seals maintain the vacuum environment while providing structural connection points, ensuring that the insulation panels remain securely positioned without compromising the vacuum seal or the overall cabinet stability.
3Ease of manufacture
If the cabinet structure lacks effective sealing mechanisms, then manufacturing and assembly become simpler, but cooling performance deteriorates due to gaps and heat loss
Solution Approach 1:
The sealing system is segmented into multiple vacuum sealed compartments, each with its own sealing mechanism. This segmentation allows for standardized, pre-fabricated seal units that simplify assembly while ensuring comprehensive coverage and effective sealing throughout the cabinet structure, maintaining cooling performance without compromising manufacturing ease.
Solution Approach 2:
Vacuum sealed compartments create inert environments that prevent heat transfer and maintain cooling performance. The vacuum seals are designed to maintain this environment while being relatively simple to implement through standardized components, balancing manufacturing ease with reliable cooling performance.
4Ease of manufacture
If conventional insulation structures are used, then the cabinet can be manufactured with simpler materials, but energy consumption increases due to reduced insulation integrity
Solution Approach 1:
Vacuum sealed compartments create inert environments that provide superior insulation compared to conventional materials. The vacuum eliminates conductive and convective heat transfer, significantly reducing energy consumption. The compartments are designed to maintain this environment while using manageable material complexity through modular construction.
Solution Approach 2:
The cabinet is segmented into multiple vacuum insulated sections, allowing the use of vacuum technology without requiring the entire structure to be overly complex. Each segment can be manufactured and assembled independently, maintaining ease of manufacture while achieving superior energy efficiency through the vacuum insulation in each compartment.
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 vacuum panel cabinet structure significantly reduces energy consumption by maintaining insulation integrity, enhances structural stability, and optimizes cooling performance by minimizing heat loss and providing a sealed path for the cooling loop.
Implementation Method 1
A plurality of vacuum insulated panels sized and configured for reception in the plurality of panel receptacles
Implementation Method 2
vacuum insulated panels significantly reduces energy consumption by maintaining insulation integrity
Implementation Method 3
A barrier layer comprising a hermetic barrier layer and a heat sealing layer is disposed on at least a portion of the vacuum insulated panels
Implementation Method 4
barrier layer comprising a hermetic barrier layer and a heat sealing layer
Implementation Method 5
an outer enclosure and liner, featuring extruded support channels and a magnetic gasket for enhanced sealing and structural integrity
Data Source
AI summary
A vacuum panel cabinet structure comprising a frame having side and back framing members defining a frame opening and panel receptacles, framing edges, at least one outwardly expanded framing member, and an inner surface. A plurality of vacuum panels disposed in the panel receptacles. A barrier layer disposed on the vacuum panels. An outer enclosure having at least one extruded channel engaging the at least one outwardly expanded framing member, at least one outwardly contoured hinge, and an inward surface defining a frame receptacle into which the frame is disposed. A liner having at least four sidewalls, a back panel, a liner outer facing surface, and a liner perimetrical flange, wherein the liner outer facing surface is disposed within the frame opening proximate the frame inner surface. The liner perimetrical flange is disposed to the outer enclosure and includes a hermetically sealed infrastructure notch.