Dual-Zone Airflow Blanket Structure to Prevent Ballooning
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Solution Overview
Problem
Existing bedding systems fail to evenly distribute pressurized conditioned air to specific zones in a bed, often causing discomfort due to temperature and humidity imbalances, especially for individuals with different preferences, and introduce foreign textures or lead to ballooning.
Innovation Solution
A top bedding blanket assembly with interconnected layers of varying air permeability, allowing for even distribution of heated or cooled air into one or two independent zones without foreign textures, using a lower layer with higher air permeability and an upper layer with lower permeability, joined by thread stitches to prevent ballooning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heavy covering is employed in cold weather to minimize air exchange, then air temperature and humidity about the body increase, but the person becomes uncomfortably hot and may throw off the covering resulting in chilling
Solution Approach 1:
The blanket is divided into multiple independent air zones (first air zone and second air zone) that can be controlled separately. Each zone has its own air inlet and can be independently adjusted for temperature and airflow, allowing different thermal conditions for different body regions or occupants without requiring heavy overall coverage that causes overheating.
Solution Approach 2:
Different regions of the blanket provide different thermal characteristics through varied air permeability. The first air zone has different airflow properties than the second air zone, allowing localized temperature and humidity control tailored to specific body areas or individual preferences of different occupants.
2Object-affected harmful factors
If lighter covering is employed in warm weather to reduce insulation, then air exchange increases, but moisture from perspiration is still retained about the body causing discomfort
Solution Approach 1:
The system uses pressurized air delivery through the blanket structure to actively manage moisture and temperature. Conditioned air is forced through the blanket material and into the air zones, creating airflow that removes perspiration moisture from the body surface while providing thermal conditioning, combining the benefits of moisture wicking with active thermal control.
3Temperature
If room air conditioners are used to regulate air temperature and humidity, then large volumes of air must be handled, but this requires special electrical power and results in high installation and operation costs
Solution Approach 1:
The invention extracts the air conditioning function from the room environment and delivers it directly to the bed/occupant level. Instead of conditioning the entire room air volume, a portable air conditioner unit delivers conditioned air directly into the blanket zones, dramatically reducing the volume of air that needs to be conditioned and the associated energy consumption.
Solution Approach 2:
The blanket acts as an intermediary device between the portable air conditioner and the occupant. The blanket receives conditioned air from the portable unit and distributes it evenly across the air zones, mediating the thermal transfer from the air conditioning source to the body while providing localized control without requiring room-wide air handling.
4Ease of operation
If conventional bedding materials are used to provide comfort, then natural texture is maintained, but even distribution of pressurized air is difficult and ballooning occurs
Solution Approach 1:
The blanket utilizes porous or permeable materials in specific zones that allow controlled passage of pressurized air. The fabric structure is selected to permit uniform air distribution through the material while maintaining natural textile feel against the skin, preventing ballooning by allowing air to pass through rather than accumulate.
Solution Approach 2:
The blanket is segmented into different air zones with different permeability characteristics. The first air zone and second air zone have different material properties or structural configurations that enable each zone to distribute air appropriately for its intended function while preventing unwanted ballooning in any single region.
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 provides comfortable temperature control for each occupant by directing airflow to desired regions, maintaining a natural bedding experience while preventing ballooning and foreign textures, accommodating different temperature preferences within a shared bed.
Implementation Method 1
interconnected layers of varying air permeability, allowing for even distribution of heated or cooled air into one or two independent zones without foreign textures, using a lower layer with higher air permeability and an upper layer with lower permeability
Implementation Method 2
joined by thread stitches to prevent ballooning
Data Source
AI summary
A bed covering or blanket apparatus for accepting and distributing a pressurized flow of conditioned air into a zone around the body of a bed occupant. The apparatus includes an upper layer and lower layer of differing air permeability, joined to form a flow cavity between them for the pressurized air. A plurality of joining methods between the upper and lower layer is provided within the flow area to prevent the blanket from ballooning under the pressurized airflow. The bed covering or blanket apparatus contains means to cover an entire bed while directing pressurized conditioned air to specific zones of the bed. There is connection of two independent supplies of conditioned air into a single top layer of bedding under which multiple bed occupants sleep, to evenly distribute such independent supplies into specific dual zone areas. The apparatus achieves its function by utilizing materials that are ordinarily used in existing bed linens and comforters.