Refrigerator Wall Assembly With Air-Gap Insulation Support
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Solution Overview
Problem
Existing household refrigeration appliances face challenges in mechanically stable mounting of thermal insulation bodies and effective heat exchange, with complex assembly processes and reduced usable volume due to thick components and additional materials like foam encapsulation.
Innovation Solution
A wall arrangement featuring a first wall with a thermal insulation body held by a separate carrier frame, where the insulation body is surrounded by a delimiting element forming a small air gap with an adjacent second wall, enhancing mechanical stability and reducing heat exchange through a multifunctional support frame that also contributes to the air gap formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a separate carrier frame is used to hold the insulating body, then mechanical stability is improved, but device complexity increases
Solution Approach 1:
The carrier frame combines multiple functions into a single structural element: it holds the insulating body, forms the air gap with the second wall, and provides structural support for the door assembly. This merging reduces the number of separate components needed while maintaining mechanical stability.
Solution Approach 2:
The carrier frame serves multiple purposes simultaneously: it acts as a support structure for the insulating body, creates the thermal insulation air gap, and provides structural reinforcement for the door. This multi-functionality reduces overall device complexity despite adding a separate frame component.
2Stability of the object's composition
If full-surface adhesion is used to attach the insulating body, then mechanical stability is improved, but manufacturing precision requirements increase
Solution Approach 1:
Instead of requiring full-surface adhesion, the insulating body is attached at discrete locations using attachment means such as adhesives or fasteners positioned at specific points. This segmentation of the attachment process reduces the precision requirements for surface preparation and alignment while maintaining mechanical stability.
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 allows for a reduced assembly effort, improved thermal insulation by increasing the volume of stagnant air, and maintains a compact design without compromising the usable interior space, offering enhanced mechanical stability and reduced heat exchange.
Implementation Method 1
This boundary side of the boundary element forms a small air gap with a boundary side of the second wall. Such a configuration of a wall arrangement enables a mechanically stable attachment of an insulating body that is reduced in terms of assembly effort. An air gap of this type prevents an undesired exchange of heat between the interior space, which is delimited by the wall arrangement, and the environment
Implementation Method 2
an insulating body which is held by a separate carrier frame of the first wall and which is surrounded at least in regions on the peripheral side
Data Source
AI summary
The invention relates to a wall arrangement (19) for a household refrigeration appliance (1), comprising a first wall (5) which has a thermal insulating body (8), and a second wall (4a - 4e) which is adjacent to the insulating body (8) and at an angle with respect thereto. Said insulating body (8) is maintained on a support frame (9) of the first wall (5) and is surrounded at least in parts on the periphery of said support frame, and the support frame (9) comprises a defining element (20, 22) which extends, when seen in the depth direction (z-direction) of the first wall (5), behind a rear side (7) of the insulating body (8) and comprises a defining side (20b, 22b) which is arranged at a distance therefrom and is oriented towards the second wall (4a - 4e), which defines an air gap (21) with the defining side (41b) of the second wall (4a - 4e). The invention also relates to a household refrigeration appliance (1) comprising a wall arrangement (19).