Battery-Powered Weighted Heating Pad for Flexible Heat Distribution
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Solution Overview
Problem
Conventional heating pads lack flexibility and effective heat distribution, especially when applied to non-planar body surfaces, leading to inconsistent temperature readings and potential overheating.
Innovation Solution
A battery-powered heating pad with a weighted-segment layer, conductive rubber heating element, and temperature sensors that allow for flexible articulation around the body and precise temperature control, using both conductive and radiant heat to ensure consistent heat delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional heating pads are used, then heating function is provided, but flexibility and heat distribution consistency deteriorate when applied to non-planar body surfaces
Solution Approach 1:
The heating pad is divided into multiple independent heating zones with separate heating elements and temperature sensors. Each zone can independently adjust and maintain its temperature, ensuring consistent heat distribution across the entire pad even when applied to curved body surfaces. This segmentation allows each zone to adapt locally while maintaining overall reliability.
Solution Approach 2:
The heating pad incorporates flexible materials and a soft, conformable structure that allows it to dynamically adapt to non-planar body surfaces. The flexible design enables the pad to maintain intimate contact with curved surfaces while the independent temperature control system ensures consistent heat delivery across different zones, resolving the contradiction between flexibility and heat distribution reliability.
2Temperature
If conventional heating pads are used, then heating function is provided, but temperature control precision deteriorates leading to potential overheating
Solution Approach 1:
Each heating zone is equipped with temperature sensors that continuously monitor the temperature and provide feedback to the control system. The microcontroller adjusts the power delivery to each heating element based on this feedback, maintaining precise temperature control and preventing overheating. This closed-loop feedback system ensures safe and consistent temperature management across the entire heating pad.
Solution Approach 2:
The heating pad implements independent temperature control for each heating zone, allowing local quality adjustment. Each zone can maintain its own optimal temperature independently, preventing overheating in any specific area while ensuring precise temperature control where needed. This localized control approach enhances both temperature precision and safety.
3Measurement precision
If battery-powered heating pad with multiple components is used, then temperature control precision is improved, but device complexity increases
Solution Approach 1:
Multiple temperature sensors and heating elements are integrated into a unified control system managed by a single microcontroller. The sensor layer, heating elements, and control electronics are combined into a cohesive structure where components work together synergistically. This merging approach maintains high measurement precision while managing device complexity through integrated design and centralized 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 heating pad provides consistent and safe heat distribution across non-planar body surfaces, preventing overheating through precise temperature control and flexible design, enhancing user comfort and safety.
Implementation Method 1
The heating element includes a conductive layer with a first side and second side. The first side of the conductive layer is below the second side of the weighted-segment layer, and the conductive layer creates heat when a current moves across the conductive layer.
Implementation Method 2
The heating pad further includes at least one thermistor associated with the conductive layer
Data Source
AI summary
In one instance, a heating pad is disclosed that is flexible, battery-power, and weighted. The heating pad includes a sleeve formed with a top layer and a bottom layer and having an interior. A weighted segment layer is disposed within the interior of the sleeve. The weighted segment layer may include a plurality of pockets each having a plurality of weights. A conductive layer or sheet is disposed within the interior of the sleeve closer to the user than the weighted segment layer when in the deployed position. A battery and control unit is electrically coupled to the conductive layer for selectively providing power to the conductive layer. At least one temperature sensor is coupled to the conductive layer and electrically coupled to the control unit and provides safety features. Other heating pads are presented.