Double-Walled Insulation Fabrics with Continuous Outer Layer
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Solution Overview
Problem
Existing insulation jackets face challenges in maintaining even insulation due to the formation of valleys from quilting, leading to increased heat loss and reduced effectiveness over time.
Innovation Solution
The implementation of a continuous outer layer that is not attached to the valleys, creating an additional air layer that enhances insulation properties, and optionally an inner layer that further improves heat retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If quilting is used to maintain insulation material in place, then insulation material stability is improved, but heat loss through valleys increases
Solution Approach 1:
A continuous outer layer is introduced as an intermediary element that overlays the quilted insulation layer. This outer layer acts as a mediator that prevents direct exposure of the valleys to the external environment, thereby reducing heat loss through the valleys while maintaining the structural integrity of the quilted insulation material.
2Temperature
If thicker insulation material is used, then warmth is improved, but garment weight and bulk increase
Solution Approach 1:
The invention employs a composite structure combining a quilted insulation layer with a continuous outer layer. This composite construction achieves enhanced warmth through the synergistic effect of the quilted insulation (providing thermal resistance) and the continuous outer layer (providing wind and heat protection), thereby achieving better warmth-to-weight ratio compared to using thicker insulation material alone.
3Loss of energy
If continuous outer layer is added, then heat loss through valleys is reduced, but device complexity increases
Solution Approach 1:
The continuous outer layer is designed as a flexible shell or thin film that overlays the quilted insulation layer. This flexible construction provides effective heat and wind protection without adding significant structural complexity or bulk, as the outer layer can conform to the underlying quilted structure while maintaining its protective function.
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 reduces heat loss through valleys, maintains even insulation, and allows for a thinner, lighter construction while achieving comparable warmth to thicker, bulkier insulation jackets.
Implementation Method 1
The material typically includes some form of bulky fibrous material that serves to trap air, which is heated by the wearer and so insulates from further heat loss
Implementation Method 2
at least one of these layers is typically substantially impermeable to moving air, to prevent wind from reaching the wearer and carrying away the heat entrapped by the insulating material
Data Source
AI summary
Embodiments herein provide a thermally insulated garment having a shell, a lining that is secured to the shell at a plurality of points to form a plurality of compartments, a thermally insulating filling contained within each of the plurality of compartments, and an outer layer disposed adjacent to the shell, wherein the outer layer overlays the plurality of points and the plurality of compartments while being detached from the plurality of points and the plurality of compartments.