Pressure Meter Fluid Circuit Plastic Disc Assembly
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Solution Overview
Problem
Existing pressure meter devices for fluid circuits face challenges in cost due to the need for thick ceramic structures for rigidity and complex assembly processes involving flexible electronic circuits and metal bodies.
Innovation Solution
A pressure meter device with a ceramic pressure-sensitive cell housed inside a metal body, using a plastic disc with a cavity to reduce ceramic thickness and simplify assembly by integrating an electronic circuit connected via springs or rigid terminals, eliminating the need for precise positioning of flexible circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the connector rests against the pressure-sensitive cell only at specific areas (corners), then the device can be assembled, but the ceramic structure requires considerable thickness to provide rigidity, increasing cost
Solution Approach 1:
A plastic support element is introduced as an intermediary component between the connector and the pressure-sensitive cell. This support element distributes the mechanical loads across a larger area of the ceramic structure, eliminating the need for thick ceramic walls while maintaining structural rigidity. The plastic element acts as a load-distributing mediator that resolves the contradiction between thin-walled cost efficiency and structural strength requirements.
2Reliability
If the flexible electronic circuit is connected to the metal body with branches, then electrical connections are established, but the assembly process becomes difficult and automation is hindered
Solution Approach 1:
The complex flexible electronic circuit with branches is extracted and replaced with a simplified rigid circuit board configuration. The electrical connections are reorganized to use standard PCB trace routing instead of flexible circuit branches, making the assembly process compatible with automated manufacturing while maintaining reliable electrical connections between components.
3Strength
If the pressure-sensitive cell has considerable thickness, then rigidity and stress resistance are improved, but the cost of the pressure-sensitive cell increases
Solution Approach 1:
The plastic support element serves as a mechanical intermediary that transfers and distributes stresses from the connector to a broader area of the pressure-sensitive cell. This load distribution mechanism allows the ceramic structure to be thinner while still maintaining adequate strength and rigidity, thereby reducing material quantity and cost.
Solution Approach 2:
The device employs a composite structural approach combining plastic support elements with ceramic pressure-sensitive cell material. The plastic component provides mechanical support and load distribution, while the thinner ceramic layer performs the pressure sensing function, creating a cost-effective composite structure that leverages the advantages of both materials.
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 reduces the cost of the pressure-sensitive cell and simplifies the assembly process, enhancing the device's functional behavior and automatability while maintaining measurement accuracy.
Implementation Method 1
a pressure-sensitive cell, configured around a ceramic structure that uses any principle of conversion to convert pressure into an electrical signal, among which, for example, are those for variable capacity and variable resistance
Implementation Method 2
a pressure-sensitive cell, configured around a ceramic structure that uses any principle of conversion to convert pressure into an electrical signal, among which, for example, are those for variable capacity and variable resistance
Data Source
AI summary
The invention relates to a pressure meter for fluid circuits which has a pressure-sensitive cell that is arranged connected to an electronic circuit, connected to which, in turn, are terminals of a connector for connecting the meter in the application thereof, wherein the pressure-sensitive cell is housed in a metal body, wherein it rests by means of a seal, while a plastic disc is arranged resting against the surface of the upper face of the pressure-sensitive cell, whereon an electronic circuit is incorporated.