Reinforcement assembly for an insulated structure
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Solution Overview
Problem
Insulated structures for appliances face challenges in maintaining structural integrity and minimizing gas permeation under vacuum pressure, particularly with existing reinforcement methods that fail to effectively distribute loads and prevent misalignment of doors.
Innovation Solution
A reinforcement assembly comprising a perimeter frame on the peripheral edge of the wrapper and a central plate coupled to the mullion, along with a trim breaker that conceals the perimeter frame, provides structural reinforcement and maintains the planar configuration of flanges, while the central plate and side plates distribute the load of the doors, minimizing misalignment and extending the appliance's useful life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing reinforcement methods are used, then structural reinforcement is provided, but structural integrity and load distribution are insufficient
Solution Approach 1:
The reinforcement assembly is divided into distinct segments: a perimeter frame that couples to the wrapper's peripheral edge, and a central plate that couples to the mullion. This segmentation allows each component to independently perform its reinforcement function, with the perimeter frame providing edge support and the central plate providing central structural support, thereby improving overall load distribution and structural integrity.
Solution Approach 2:
The perimeter frame and central plate are merged into a single integrated reinforcement assembly that works together to reinforce the insulated structure. The frame and plate are positioned and coupled to work in unison, distributing door loads evenly across the structure and preventing misalignment, thereby resolving the contradiction between strength and reliability.
2Strength
If reinforcement assembly is added, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The reinforcement assembly serves multiple functions simultaneously: the perimeter frame provides structural reinforcement at the edges, the central plate provides central support, and together they distribute door loads and prevent misalignment. This multi-functionality reduces the need for separate reinforcement components, thereby improving structural integrity without proportionally increasing complexity.
Solution Approach 2:
The central plate is positioned within the perimeter frame structure, with the frame extending across the peripheral edge and the plate coupled to the central mullion. This nested arrangement allows the reinforcement components to be integrated within the existing insulated structure geometry, minimizing additional complexity while maximizing structural benefit.
3Strength
If perimeter frame is positioned at peripheral edge, then structural reinforcement is provided, but misalignment of doors occurs
Solution Approach 1:
The perimeter frame and central plate are pre-positioned and coupled to the wrapper and mullion respectively, establishing a rigid reference structure before door installation. This preliminary reinforcement structure provides stable mounting surfaces for the doors, ensuring proper alignment and preventing misalignment issues that would otherwise occur with insufficient structural support.
Data Source
AI summary
An insulated structure for an appliance includes an outer wrapper and an inner liner. A mullion extends across the inner liner. A reinforcement assembly is coupled to the outer wrapper. The reinforcement assembly includes a perimeter frame that is disposed on a peripheral edge of the outer wrapper and a central plate central plate that is proximate the mullion. At least one door is hingedly coupled to the outer wrapper.