Portable Sunshade Dual-Layer Airflow Cooling
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Solution Overview
Problem
Conventional sunshade structures are ineffective in controlling temperature beneath them, as they do not adequately manage airflow or provide sufficient cooling.
Innovation Solution
A portable sunshade assembly featuring two flexible sheets spaced apart with internal walls forming air passages between them, allowing air to flow and providing a cooling effect, while also being waterproof and sunproof, with coupling arrangements for support and tensioning members to maintain structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-layer shade cloth is used to block sunlight, then the structure is simple and easy to set up, but the temperature control effect is limited
Solution Approach 1:
The single-layer shade cloth is divided into two separate flexible sheets (top sheet and bottom sheet) spaced apart from each other. This segmentation creates a dual-layer structure that improves temperature control by allowing air circulation between the layers while maintaining individual sheet simplicity.
Solution Approach 2:
The invention adds a spatial dimension by spacing the top and bottom flexible sheets apart to create an air gap between them. This dimensional change transforms a two-dimensional single-layer structure into a three-dimensional dual-layer structure with internal air passages, enabling convective cooling and significantly improving temperature control effectiveness.
2Temperature
If two flexible sheets are spaced apart to create air passages, then the temperature control effect is improved, but the structure becomes more complex
Solution Approach 1:
The invention uses flexible sheets (thin films) as the structural components instead of rigid materials. These flexible sheets can be easily spaced apart to create air passages and can be folded or rolled for compact storage, reducing the overall device complexity despite the dual-layer structure.
Solution Approach 2:
The flexible sheets and internal walls are designed to be collapsible and foldable, allowing the structure to transition between an extended configuration (for use) and a compact configuration (for storage). This dynamic property simplifies handling and storage despite the complex dual-layer structure with air passages.
3Temperature
If internal walls are added to define air flow paths, then the cooling effect is enhanced, but the manufacturing complexity increases
Solution Approach 1:
The internal walls are made from flexible material that can be easily formed and attached between the top and bottom sheets. This flexible construction method simplifies manufacturing compared to rigid structures, as the flexible walls can be inserted and secured without complex joining processes.
Solution Approach 2:
The internal walls are segmented into multiple separate elements rather than forming a single continuous structure. This segmentation simplifies manufacturing by allowing each wall segment to be produced and attached independently, reducing overall manufacturing complexity while still defining effective air flow paths.
4Reliability
If the sheets are made waterproof and sunproof, then the protective function is improved, but the material selection and processing become more difficult
Solution Approach 1:
The flexible sheets are constructed using composite materials that combine waterproof and sunproof properties. This composite structure achieves the desired protective function (blocking water and UV radiation) while using materials that can be processed into flexible sheets suitable for the portable sunshade assembly.
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 design significantly reduces temperature under the sunshade by facilitating airflow and providing structural reinforcement, while allowing for easy storage and deployment.
Implementation Method 1
the top and bottom flexible sheets comprise respective surfaces and are arranged to define a space there-between to provide a plurality of passages located between the first and second sheets to allow air to pass in a direction from a first side of the top and bottom flexible sheets to a second side of the top and bottom flexible sheets
Data Source
AI summary
A portable sunshade assembly comprising: an in-use top flexible sheet spaced away from an in-use bottom flexible sheet wherein during use in an extended configuration the top and bottom flexible sheets comprise respective surfaces and are arranged to define a space there-between to provide a plurality of passages located between the first and second sheets to allow air to pass in a direction from a first side of the top and bottom flexible sheets to a second side of the top and bottom flexible sheets.