Insulating device backpack
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Solution Overview
Problem
Existing portable coolers lack effective insulation and waterproof closure systems, leading to inefficient temperature maintenance and leakage issues, which hinder their ability to keep contents cool or warm for extended periods while being portable and waterproof.
Innovation Solution
The design incorporates a waterproof closure system, an insulating layer floating between the outer shell and inner liner, and a base support layer, utilizing materials like TPU tape and EVA foam for enhanced insulation and structural integrity, along with carry handles and straps for portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof closure system is added to the cooler, then leakage prevention is improved, but device complexity increases
Solution Approach 1:
The closure system employs nested waterproof components including an inner liner with waterproof coating, waterproof tape seals, and overlapping flaps that create multiple nested barriers against leakage. Each layer is positioned within or around the previous layer to provide redundant waterproof protection without requiring a completely separate complex system.
Solution Approach 2:
The closure system utilizes composite waterproof materials such as TPU (thermoplastic polyurethane) tape combined with fabric flaps, and waterproof coatings applied to the inner liner. These composite materials provide effective waterproofing while maintaining a relatively simple structural implementation compared to mechanical waterproof systems.
2Temperature
If an insulating layer is added between the outer shell and inner liner, then temperature maintenance is improved, but device complexity increases
Solution Approach 1:
The insulating layer is strategically positioned only in critical thermal zones where temperature maintenance is most needed, such as the walls and lid of the cooler. The insulation thickness and material properties are optimized for specific locations based on thermal loss patterns, providing effective temperature maintenance without uniformly complicating the entire structure.
Solution Approach 2:
The insulating layer is implemented as a flexible material that can be conformally attached to the inner liner or outer shell surfaces. This flexible film approach provides effective thermal insulation while maintaining the simple, portable form factor of the cooler without requiring rigid insulating structures.
3Ease of operation
If portable features like handles and straps are added, then ease of operation is improved, but weight increases
Solution Approach 1:
The carrying handles and straps are designed as separate, removable components that can be attached or detached as needed. This allows the cooler to maintain portability features when needed while avoiding the permanent weight penalty of integrated carrying structures. The handles and straps are extracted as optional accessories rather than built-in permanent features.
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 contents at desired temperatures for extended periods, prevents leakage, and ensures portability, making it suitable for keeping food and beverages cool or warm.
Implementation Method 1
an insulating layer floating freely in between the outer shell and the inner liner
Implementation Method 2
a waterproof closure
Data Source
AI summary
An insulating device backpack may include an outer shell, a first sidewall defining a front portion of the insulating device backpack, and a second sidewall and a third sidewall defining side portions of the insulating device backpack, and a fourth sidewall defining a back portion of the insulating device backpack, an inner liner forming a storage compartment, an insulating layer positioned in between the outer shell and the inner liner, the insulating layer providing insulation for the storage compartment, and an opening configured to allow access to the storage compartment, and a closure adapted to seal the opening.