Vacuum Insulation Core Structure With Spaced Plates and Heat-Limiting Supports
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Solution Overview
Problem
The existing vacuum insulation members using glass fiber have limitations in insulation performance, which restricts the ability to achieve better thermal insulation, particularly in applications like refrigerators where a larger internal volume is desired without increasing the outer dimensions.
Innovation Solution
A vacuum insulation core comprising spaced plates supported by a low thermal conductivity material, where the support member limits heat transmission and maintains a vacuum state, with posts and through portions designed to lengthen the heat transmission path and reduce thermal conductivity, and the plates are made of synthetic resin to avoid the issues associated with glass fiber cores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If glass fiber is used as the core material, then the structural strength is sufficient, but the insulation performance is limited with thermal conductivity of about 0.0035 W/m·K
Solution Approach 1:
The patent removes the glass fiber material entirely and replaces it with a vacuum space structure. The core is transformed from a solid glass fiber material into a configuration of spaced plates with vacuum between them, extracting the problematic material while maintaining structural function through the support member.
Solution Approach 2:
The patent changes the fundamental parameter of the core from solid material (glass fiber) to vacuum space. By creating a vacuum environment between the plates, the thermal conductivity is reduced from 0.0035 W/m·K to approximately 0.002 W/m·K, achieving superior insulation performance.
2Temperature
If the core is made as a solid rectangular box, then the structural integrity is maintained, but the entire internal surfaces become heat transmission paths
Solution Approach 1:
The patent segments the solid core into multiple spaced plates with vacuum gaps between them. This segmentation breaks the continuous heat transmission path into discrete segments, reducing the overall heat transmission area while maintaining structural integrity through the support member connecting the plates.
Solution Approach 2:
The patent creates a porous-like structure with vacuum spaces between the plates, replacing the solid rectangular box. This configuration minimizes the contact area for heat transmission while the support member ensures structural stability, effectively creating a thermal barrier through the vacuum gaps.
3Temperature
If the space between plates is maintained in vacuum state, then insulation performance is improved, but atmospheric pressure applies stress to the plates
Solution Approach 1:
The patent introduces a support member as an intermediary between the vacuum space and the plates. This support member bears the atmospheric pressure stress and transfers it to the plates, protecting them from direct pressure stress while maintaining the vacuum state for superior insulation performance.
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 enhances insulation performance by minimizing heat transmission paths and maintaining a stable vacuum, providing superior insulation compared to traditional glass fiber-based vacuum insulation members.
Implementation Method 1
a vacuum insulation member is a sort of insulator decompresses an internal space into a vacuum state to thus use the characteristics of low thermal conductivity of vacuum
Implementation Method 2
the support member serves to limit heat transmission generated in a thickness direction of the core
Data Source
AI summary
A core of a vacuum insulation member and a vacuum insulation member using the same are disclosed. The core of a vacuum insulation member includes: a plurality of plates which are spaced apart from each other; and a support member supporting the plurality of plates between the plates.