Fluid Sensor Housing With Insulation Displacement Connection
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Solution Overview
Problem
Existing devices for detecting pressure and temperature in fluid media, particularly in motor vehicle applications, face challenges with increased mechanical vibrations, media loading, and rising costs, necessitating a simplified and improved structural concept.
Innovation Solution
A method involving a housing with separate components for the pressure connector and housing, where a temperature sensor with connecting lines is inserted and electrically connected using an insulation displacement method, and a pressure sensor is mounted on a circuit carrier within the housing, allowing for modular design and simplified manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a temperature sensor and pressure sensor are arranged in a common housing with separate compartments, then the device can measure both temperature and pressure simultaneously, but the structural complexity increases and manufacturing costs rise
Solution Approach 1:
The patent combines the temperature sensor and pressure sensor into a single common housing with a shared measuring chamber, eliminating the need for separate compartments. The temperature sensor is integrated directly into the measuring chamber where the pressure sensor is also located, allowing both sensors to operate in the same space and measure properties of the same fluid medium simultaneously.
Solution Approach 2:
The common housing serves multiple functions: it contains both the temperature sensor and pressure sensor, provides a shared measuring chamber for both sensors, and enables simultaneous measurement of multiple fluid properties. This multi-functional design reduces the need for separate housing structures for each sensor type.
2Reliability
If conventional connection methods are used for the temperature sensor leads, then electrical connection is established, but mechanical stress and vibration resistance are insufficient
Solution Approach 1:
The patent replaces conventional mechanical connection methods for the temperature sensor leads with an insulation displacement connection (IDC). Instead of using traditional soldering or mechanical crimping that creates stress points, the IDC method allows the conducting wires to be inserted into contact elements that displacer the insulation and create electrical contact without rigid mechanical constraints, thereby reducing the impact of mechanical stress and vibrations on the electrical connection.
3Adaptability or versatility
If the housing and pressure port are manufactured as separate components, then manufacturing flexibility increases for different pressure connections, but assembly complexity increases
Solution Approach 1:
The patent divides the device into separate manufacturable components: the housing and the pressure port are manufactured separately. This segmentation allows each component to be optimized and manufactured independently using appropriate processes, then assembled together. The pressure port can be configured with different pressure connections while the housing remains a standardized component.
Data Source
Figure 1A~1B
Figure 2~3B
AI summary
The invention relates to a device (110) for detecting at least one property of a fluid medium and to a method for producing same. The method has the following steps: a) providing at least one housing (112), said housing (112) having at least one electric contact (114); b) introducing at least one sensor element (138) for detecting the property into the housing (112); c) providing at least one pressure connector (118), said pressure connector (118) comprising at least one contacting element (148); d) bringing the contacting element (148) into contact with the sensor element (138) such that an electric connection is produced between the contact element (148) and the sensor element (138); and e) introducing at least one circuit support (126) into the housing (112) such that the circuit support (126) is electrically connected to the electric contact (114) of the housing (112) and to the sensor element (138); wherein the housing (112) and the pressure connector (118) are produced as separate components.