Two-Way Sensor Shield Assembly for Heat and Impact Protection
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Solution Overview
Problem
Sensors used in heat-producing apparatuses are susceptible to performance degradation due to exposure to both internal thermal energy and external physical impacts, which affect their sensitivity and precision.
Innovation Solution
A two-way thermo-mechanical shield assembly comprising an inner shield to protect from internal thermal energy and an outer shield to shield from external impacts, both constructed from impact-resistant and thermal-insulating materials, with the outer shield featuring vent openings for air circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single shield is used to protect the sensor, then the device complexity is reduced, but the sensor cannot simultaneously protect from both internal thermal energy and external physical impacts
Solution Approach 1:
The shield assembly is divided into two separate shields: an inner shield that protects from internal thermal energy and an outer shield that protects from external physical impacts. This segmentation allows each shield to be optimized for its specific protective function, resolving the contradiction between comprehensive protection and structural simplicity.
2Temperature
If the shield is made from thick thermal-insulating material, then thermal protection is improved, but the shield weight and size increase
Solution Approach 1:
Thermal protection is achieved through the inner shield made of thermal-insulating material, while the outer shield focuses on mechanical protection. This segmentation allows thermal protection without requiring the entire shield assembly to be thick and heavy.
Solution Approach 2:
The shield assembly uses different materials for different functions: thermal-insulating materials for the inner shield and impact-resistant materials for the outer shield. This composite approach provides both thermal and mechanical protection without excessive weight.
3Temperature
If vent openings are added to the outer shield for air circulation, then cooling effect is improved, but the shield structural strength is reduced
Solution Approach 1:
The cooling function is separated into the outer shield with vent openings, while the structural strength is maintained by the overall cage design and the inner shield. This segmentation allows ventilation without compromising the core structural integrity.
Solution Approach 2:
The outer shield uses a cage-like structure with vent openings that provides both cooling airflow paths and mechanical protection. The cage structure maintains strength while allowing thermal management through strategic opening placement.
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 shield assembly effectively protects sensors from both internal and external threats, ensuring reliable and consistent performance by maintaining sensor sensitivity and precision.
Implementation Method 1
The first shield is configured to protect the sensor from thermal energy originating internal to the apparatus housing
Implementation Method 2
the second shield is configured to protect the sensor from physical impact and thermal energy originating external to the apparatus housing
Implementation Method 3
Each of the four side sections of the cage structure may define a vent opening configured to facilitate circulation of air through the second shield from an environment external to the apparatus housing
Data Source
AI summary
A two-way thermo-mechanical shield assembly for a sensor of a heat-producing apparatus having an apparatus housing includes a first shield and a second shield. Each shield is configured to be mounted to the apparatus housing and are together configured to encase the sensor. The first shield is configured to protect the sensor from thermal energy originating internal to the apparatus housing, while the second shield is configured to protect the sensor from physical impact and thermal energy originating external to the apparatus housing.