Ceramic Housing Temperature Sensor with Integrated Line Guides
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Solution Overview
Problem
Conventional temperature sensor systems face limitations in mechanical stability, response time, and corrosion resistance, especially when exposed to high temperatures and aggressive media, due to the use of plastic or polymer housings, and the complexity of metal housings.
Innovation Solution
A temperature sensor system featuring a ceramic housing with high thermal conductivity, produced using injection molding technology, which provides mechanical stability and short response times, and is designed with integrated line guides and sealing surfaces to accommodate electrical supply lines, allowing for precise geometric adaptation and robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If plastic or polymer housings are used, then ease of manufacture and geometric adaptability are improved, but maximum operating temperature is limited to around 200-250°C
Solution Approach 1:
The patent changes the material parameter from plastic/polymer to ceramic, which fundamentally alters the temperature resistance capability while maintaining manufacturability through injection molding technology. The ceramic material enables operation at temperatures exceeding 250°C while still allowing complex geometric shapes to be produced.
2Strength
If metal housings are used, then temperature stability and mechanical strength are improved, but device complexity increases and corrosion resistance in aggressive media deteriorates
Solution Approach 1:
The patent employs ceramic material that combines the advantages of both plastic and metal: like plastic, it can be injection molded into complex shapes with integrated features; like metal, it provides high mechanical strength and temperature stability. Additionally, ceramic offers superior corrosion resistance in aggressive media, resolving all three contradictory requirements simultaneously.
3Shape
If metal housings with complex shapes are used, then geometric requirements are met, but response time increases due to additional heat transfer and low heat conduction
Solution Approach 1:
The patent changes the thermal conduction parameter by using ceramic material with optimized wall thickness (0.3-3mm). This enables the housing to maintain complex geometric shapes while achieving fast thermal response times, as the ceramic material's thermal properties and controlled thickness minimize heat transfer delays.
4Ease of manufacture
If ceramic housing parts are produced separately and connected, then manufacturing flexibility is improved, but interface complexity and potential sealing issues increase
Solution Approach 1:
The patent merges the lower part and upper part of the ceramic housing into a single injection-molded component. This eliminates the interface between separate parts, removing sealing requirements and simplifying the structure, while still allowing flexible design and manufacturing of the complete housing assembly.
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 ceramic housing system enables the temperature sensor to maintain high mechanical and chemical robustness, achieve short response times, and operate effectively at high temperatures and in aggressive environments, with precise design and standardized assembly.
Implementation Method 1
The first ceramic housing part has a ceramic material with high thermal conductivity
Data Source
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AI summary
The invention relates to a temperature sensor system comprising a temperature probe element and a first ceramic housing part. The temperature probe element comprises a sensor element and electrical feed lines. The first ceramic housing part comprises a sleeve-shaped lower part with a closed lower end and an open upper end, and an upper part connected to the open upper end. The sensor element is arranged in the sleeve-shaped lower part. The upper part has recesses in which the electrical feed lines are partially arranged and guided. The lower part and the upper part form one piece. Also disclosed is a method for producing a temperature sensor system.