Bed Microclimate Control Using Zoned Airflow Pads and Thermal Feedback
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Solution Overview
Problem
Current bed systems lack effective microclimate control, leading to discomfort due to temperature and humidity fluctuations, which can disrupt sleep quality.
Innovation Solution
A bed system with a microclimate control subsystem that includes airflow pads and a fan assembly to condition air, providing heated or cooled air to the mattress, and a thermal module with temperature sensors for closed-loop control, ensuring precise temperature management and humidity regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional heating and cooling systems are used in beds, then temperature control is provided, but microclimate control precision is insufficient leading to discomfort
Solution Approach 1:
The bed system is divided into multiple independent climate control zones (head zone, middle zone, foot zone) that can be controlled separately. Each zone has its own airflow pads and temperature control capabilities, allowing precise microclimate adjustment for different body regions without compromising overall comfort.
Solution Approach 2:
Airflow pads are introduced as an intermediary component between the heating/cooling systems and the mattress surface. These pads facilitate directed air circulation through the mattress, enabling precise temperature control and microclimate management while maintaining mattress comfort and durability.
2Temperature
If air circulation is increased to improve microclimate control, then temperature regulation improves, but mattress comfort and durability may be disrupted
Solution Approach 1:
Airflow pads serve as protective intermediaries that channel air circulation through designated paths without directly impacting the mattress structure. This intermediary system enables effective temperature regulation while preserving mattress comfort and durability by preventing direct airflow disruption to the mattress materials.
Solution Approach 2:
The airflow pads utilize flexible, breathable materials that allow controlled air passage while maintaining the structural integrity and comfort properties of the mattress. These thin film structures enable microclimate control without compromising the mattress's reliability and durability.
3Temperature
If complex control systems are added for precise temperature management, then microclimate control improves, but device complexity increases
Solution Approach 1:
The control system is segmented into zone-specific controllers that manage temperature independently for head, middle, and foot sections. This segmentation allows precise temperature management for each zone without requiring a monolithic complex control system, reducing overall system complexity while maintaining precision.
Solution Approach 2:
Temperature sensors and control systems implement closed-loop feedback control to automatically adjust heating and cooling based on actual mattress surface temperatures. This feedback mechanism achieves precise temperature management with simplified control logic, as the system self-regulates based on real-time conditions rather than requiring complex manual control.
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 system effectively maintains a comfortable microclimate, enhancing sleep quality by regulating temperature and humidity, while minimizing disruption to the mattress's comfort and durability.
Implementation Method 1
a fan assembly configured to cause air to flow from or to the mattress
Implementation Method 2
a heating element that includes a plurality of fins that allow air flow in between the fins to be heated by the heating element
Implementation Method 3
a reversible fan mounted in the housing... controlling the reversible fan in an opposite direction to draw air from the mattress
Data Source
AI summary
A bed system includes microclimate control capabilities for providing quality sleep experience. The bed system can include a microclimate control subsystem configured to supply conditioned air (e.g., heated or cooled air) to a mattress, or draw ambient air from the mattress, to achieve a desired temperature at the top of the mattress. Utilizing supply of conditioned air to provide air at desired temperature to the mattress system, or utilizing air suction to drain heat away from the mattress system, can provide precise microclimate control at the mattress, thereby permitting conformable sleep.