Thermal Insulation Panel Ventilation Duct Design
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Solution Overview
Problem
The existing thermal-insulation panels with ventilation slots of 5mm width cause high airflow resistance, and the horizontal ventilation duct design results in unnecessary resistance and installation difficulties due to small contact area and height, affecting wall drying and thermal insulation efficiency.
Innovation Solution
A thermal-insulation and drying panel with a cuboid structure composed of offset inner and outer layers, featuring ventilation slots with extended, contracting, and non-extended portions, oblong splines and keys for improved airflow, and a deeper ventilation duct for reduced resistance, along with positioning elements for easier installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If ventilation slots of 5mm width are used, then thermal insulation is provided, but airflow resistance becomes excessively high
Solution Approach 1:
The patent changes the geometric parameters of ventilation slots from narrow (5mm) to wide openings, and transforms the ventilation duct from a narrow horizontal channel to a deep vertical cavity. This parameter change reduces airflow resistance by over 39% while maintaining thermal insulation through the panel structure.
Solution Approach 2:
The invention transitions from a two-dimensional narrow horizontal duct to a three-dimensional deep vertical ventilation cavity. This dimensional change allows air to flow more freely vertically through the panel thickness, reducing resistance and improving airflow efficiency.
2Device complexity
If horizontal ventilation duct with small height is used, then panel structure is simplified, but installation accuracy becomes difficult to achieve
Solution Approach 1:
The patent incorporates pre-formed vertical ventilation cavities and positioning elements (splines and keys) during panel manufacturing. These preliminary structural features guide vent installation and ensure accurate positioning, eliminating installation difficulties while maintaining structural simplicity.
Solution Approach 2:
The invention introduces positioning elements (splines and keys) as intermediary structures that mediate between the vent and the panel. These elements facilitate accurate alignment and installation of vents in the deep ventilation cavities, solving the installation accuracy problem.
3Device complexity
If small contact area between ventilation duct and slots is used, then panel design is simplified, but airflow resistance increases due to local whirl zones
Solution Approach 1:
The patent changes the contact interface parameters from small area to large area by creating deep vertical ventilation cavities that extend throughout the panel thickness. This allows multiple ventilation slots to contact the duct along the cavity height, increasing the effective contact area and reducing airflow resistance by eliminating local whirl zones.
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 significantly reduces airflow resistance, enhances wall drying, and simplifies installation while improving thermal insulation efficiency, achieving up to 39.86% greater airflow compared to previous designs.
Implementation Method 1
ventilation slots are spaced at regular intervals, and parallel to each other, extending perpendicularly to longer sides of the panel... extensions of ventilation slots pass therethrough... a ventilation duct, extending essentially perpendicularly to the ventilation slots, which contact the ventilation duct
Data Source
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AI summary
The invention refers to a thermal-insulation and drying panel, made of expanded material and designed for thermal insulation of building walls, in particular requiring wall moisture to be transported away, as well as a wall thermal-insulation and drying system using i.e. the thermal-insulation and drying panel, and a method of installation of wall thermal-insulation and drying system.