Vacuum adiabatic body and method for manufacturing the same
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Solution Overview
Problem
Vacuum adiabatic bodies face reliability issues due to small process errors during sealing, leading to vacuum breakage and compromised adiabatic performance.
Innovation Solution
Incorporating a strength reinforcement portion on the first plate to enhance its strength, prevent deformation, and maintain the vacuum space, along with a method for manufacturing that includes preparing components, assembling, sealing, and exhausting the vacuum space to ensure reliable sealing and prolonged adiabatic effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the first plate is made thinner to reduce weight or material usage, then the weight and material cost decrease, but the strength and resistance to deformation deteriorate
Solution Approach 1:
The first plate is segmented into a plate body and a separate strength reinforcement portion. This reinforcement portion is provided at the peripheral portion of the plate, dividing the structural function between the thin plate body (for weight reduction) and the reinforcement portion (for strength enhancement).
Solution Approach 2:
The strength reinforcement portion is localized at the peripheral portion of the first plate where strength is most needed for sealing support, while the central plate body remains thin. This local quality enhancement allows weight reduction in non-critical areas while maintaining strength where required.
2Reliability
If the sealing process is performed to seal the coupling portion of members, then the vacuum tightness is improved, but small process errors lead to vacuum breakage and reliability deteriorates
Solution Approach 1:
The strength reinforcement portion is provided beforehand at the peripheral portion of the first plate to cushion and support the sealing process. This reinforcement prevents deformation during sealing, creating a more forgiving structure that tolerates small process errors without compromising vacuum tightness.
3Loss of substance
If the first plate is made thinner to reduce material usage, then the material cost and environmental impact decrease, but the adiabatic performance may deteriorate due to plate deformation
Solution Approach 1:
The first plate structure is segmented into a thin plate body (for reduced material usage) and a separate strength reinforcement portion (for maintaining structural integrity). This segmentation allows the plate to remain thin while preventing deformation that would compromise adiabatic performance.
Solution Approach 2:
The strength reinforcement is applied locally at the peripheral portion where it is needed to prevent deformation, while the rest of the plate remains thin. This localized reinforcement maintains adiabatic performance without requiring increased material usage throughout the entire plate.
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 solution effectively maintains a high adiabatic effect over time by reinforcing the first plate and ensuring accurate positioning and sealing, thereby improving the reliability and longevity of the vacuum adiabatic body.
Implementation Method 1
a vacuum space provided between the first plate and the second plate
Implementation Method 2
A vacuum adiabatic wall may be provided to improve adiabatic performance
Data Source
AI summary
A vacuum adiabatic body of the present disclosure may include a first plate; a second plate; and a vacuum space provided between the first plate and the second plate. The vacuum adiabatic body may include a strength reinforcement portion configured to reinforce the strength of the first plate.