Bed Microclimate Control Using Conditioned Airflow and Thermal Zoning
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Solution Overview
Problem
Existing bed systems lack effective microclimate control mechanisms to maintain optimal temperature and comfort for users, leading to inconsistent sleep experiences.
Innovation Solution
A bed system with a microclimate control subsystem that supplies conditioned air or draws ambient air to regulate mattress temperature, utilizing airflow pads and a thermal module with fans, sensors, and a closed-loop control system to manage airflow and temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a bed system includes heating and cooling systems, then temperature control capability is improved, but device complexity increases
Solution Approach 1:
The bed system is divided into multiple independent climate control zones (e.g., head zone, foot zone, side zones) that can be controlled separately. Each zone has its own airflow control, allowing localized temperature adjustment without requiring a completely separate system for each area, thus managing complexity through modular segmentation.
Solution Approach 2:
The same airflow system and thermal module serve multiple functions: cooling during hot periods, heating during cold periods, and air circulation for freshness. The system can operate in different modes (cooling mode, heating mode, circulation mode) using the same hardware infrastructure, reducing overall system complexity while maintaining temperature control capability.
2Measurement precision
If air flow rate through the mattress is increased, then microclimate control precision is improved, but energy consumption increases
Solution Approach 1:
The airflow rate is dynamically adjusted based on real-time temperature sensor feedback and user preferences. The system starts with higher airflow to quickly achieve the desired temperature, then reduces airflow to maintenance levels once the target temperature is reached, optimizing energy consumption while maintaining control precision.
Solution Approach 2:
The system uses periodic airflow cycles with alternating high and low flow rates. During periods when temperature stability is achieved, airflow is reduced or temporarily stopped, then restarted when temperature drift occurs. This periodic action maintains microclimate precision while significantly reducing average energy consumption compared to continuous high-flow operation.
3Ease of operation
If airflow pads are integrated into the mattress structure, then ease of operation is improved, but manufacturing complexity increases
Solution Approach 1:
The airflow pad system is designed as a separate, modular insert that can be independently manufactured and then integrated into the existing mattress structure. This segmentation allows the airflow pads to be produced using specialized techniques while the mattress itself maintains its standard manufacturing process, reducing overall manufacturing complexity.
Solution Approach 2:
The airflow pads are designed to nest within the existing mattress layers and structure. The pads fit into predetermined channels or spaces within the mattress, utilizing the existing mattress architecture rather than requiring complete restructuring. This nesting approach integrates the airflow system into the mattress while minimizing additional manufacturing steps.
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
Provides precise microclimate control, enhancing user comfort and maintaining consistent sleep quality by regulating mattress temperature and humidity, while minimizing energy consumption and noise.
Implementation Method 1
a fan assembly configured to cause air to flow from or to the mattress
Implementation Method 2
a temperature sensor configured to sense a temperature of the air that flows from or to 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.