3D-Printed Auxetic Guard Padding with Integrated Sensors
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Solution Overview
Problem
Conventional protective gear is often bulky, poorly ventilated, and fails to fit individuals well, causing discomfort and potential damage from external impacts, with a need for self-adjusting and sensor-equipped designs to enhance comfort and monitoring of wearing status.
Innovation Solution
The integration of 3D-printed auxetic cushion pads with sensors, such as pressure, humidity, or temperature sensors, into protective gear, allowing for self-adjustment and real-time monitoring of wearing conditions, improving fit, ventilation, and data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional protective gear is designed to provide protection, then safety is improved, but the gear becomes bulky and causes discomfort
Solution Approach 1:
The patent employs thin film-like auxetic cushion pads instead of bulky traditional protective gear. These cushion pads are flexible yet provide effective protection through their unique auxetic structure that expands under compression, distributing impact forces efficiently while maintaining a thin, comfortable profile against the body.
Solution Approach 2:
The patent utilizes auxetic materials that change their physical parameters dynamically. When compressed by external impact, these materials exhibit negative Poisson's ratio behavior, expanding in the direction perpendicular to compression and increasing in volume, thereby providing enhanced protection without requiring increased thickness or bulk.
2Adaptability or versatility
If protective gear is designed for general use, then versatility is improved, but the gear does not fit individuals with different physique well
Solution Approach 1:
The patent employs dynamic auxetic cushion pads that can adapt their shape and density in real-time based on applied forces. This dynamic behavior allows the same cushion pad to conform to different body shapes and sizes, providing customized fit for each wearer while maintaining general applicability across different physique types.
Solution Approach 2:
The auxetic materials change their physical parameters such as density, volume, and stiffness in response to applied compression. This parameter change capability enables the protective gear to adapt to different body contours and impact conditions, achieving both versatility and personalized fit simultaneously.
3Reliability
If protective gear is made without ventilation, then protection is improved, but ventilation and comfort deteriorate
Solution Approach 1:
The thin film-like auxetic cushion pads inherently provide better ventilation compared to bulky traditional gear. The thin structure allows for improved air circulation between the protective gear and the body, reducing heat buildup while maintaining effective protection through the auxetic mechanism.
4Device complexity
If protective gear is designed without sensors, then simplicity is improved, but the ability to detect wearing status and provide real-time monitoring is lost
Solution Approach 1:
The patent integrates sensors that provide real-time feedback about wearing status, impact forces, and environmental conditions. This feedback mechanism enables continuous monitoring of the protective gear's performance and the wearer's safety status, allowing for immediate response to potentially harmful conditions while maintaining relatively simple overall system architecture.
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 enhanced comfort and protection through self-adjusting auxetic structures and real-time data monitoring, ensuring a better fit and improved safety by adapting to the wearer's needs and detecting potential hazards.
Implementation Method 1
The cushion pad has auxetic structure and is manufactured by a 3D printing process
Implementation Method 2
The pressure sensor senses pressure and generates a pressure signal
Implementation Method 3
the humidity sensor senses humidity and generates a humidity signal
Implementation Method 4
the temperature sensor senses temperature and generates a temperature signal
Data Source
AI summary
Guard padding with sensor is provided, including a cushion pad and a sensor. The cushion pad has auxetic structure and is manufactured by a 3D printing process. The cushion pad has a slot at a side thereof. The sensor manufactured by the 3D printing process is disposed in the slot. The sensor is a pressure sensor, a humidity sensor or a temperature sensor. The pressure sensor generates a pressure signal, the humidity sensor generates a humidity signal and the temperature sensor generates a temperature signal.