Vacuum Insulation Body with Prefabricated Diffusion-Tight Bag Envelope
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Solution Overview
Problem
Existing vacuum insulation bodies face challenges in achieving long service life due to difficulties in creating a reliable and simple method for applying a diffusion-tight envelope, which can be damaged during application, leading to reduced vacuum tightness and shortened service life.
Innovation Solution
A prefabricated bag or partial bag with a geometry adapted to the enveloping body is used, which can be slipped over or inserted into the body, reducing stress and risk of damage, and is designed to be larger than the enveloping body to accommodate irregularities, with a high-barrier film and aluminum composite foil for enhanced vacuum tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the envelope geometry is adapted to the enclosing body shape, then ease of operation is improved, but manufacturing complexity increases
Solution Approach 1:
The envelope is prefabricated with the required adapted geometry in a controlled manufacturing process. This allows complex geometries to be produced systematically, making the subsequent attachment process simple and straightforward despite the complexity of the envelope shape.
2Ease of operation
If the envelope is made larger than the enclosing body, then ease of operation is improved, but volume of material increases
Solution Approach 1:
The envelope is made slightly larger than the enclosing body to allow easy slipping over during application. This excessive dimension is minimal and only sufficient for the application process, after which the envelope conforms to the enclosing body shape, minimizing material usage while maintaining ease of operation.
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 design simplifies the attachment process, reduces the risk of damage, and ensures a high degree of vacuum tightness, resulting in a longer service life for the vacuum insulation body.
Implementation Method 1
designed to be larger than the enveloping body to accommodate irregularities, with a high-barrier film and aluminum composite foil for enhanced vacuum tightness
Data Source
Figure 1~4
AI summary
The present invention relates to a vacuum insulation body comprising at least one enveloping body and at least one diffusion-tight casing (20), which adjoins the enveloping body at least in some portions, at least part of the casing (20) being in the form of a prefabricated bag or bag section the geometry of which is completely or substantially adapted to the shape of the enveloping body.