Pressure Measuring Cell Connection Unit Miniaturization
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Solution Overview
Problem
Existing pressure measuring cell connection units lack miniaturization capabilities while maintaining conventional production methods, leading to inefficiencies in mechanical strength, assembly complexity, and increased manufacturing costs.
Innovation Solution
A compact connection unit design featuring a circuit carrier with three-dimensional conductor tracks, conductive adhesive dots for reliable contact, and a metallic protective sleeve, utilizing MID-2K technology for injection-molded components and laser-structured conductor tracks, enabling precise assembly and mechanical protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional connection units are used for pressure measuring cells, then production methods are simple, but miniaturization capability is limited and mechanical strength is insufficient
Solution Approach 1:
The patent combines the circuit carrier, printed circuit board, and electrical connections into an integrated connection unit assembly. The circuit carrier serves as both a structural support element and a mounting platform for the printed circuit board, merging multiple functions into a single compact structure that enhances mechanical strength while enabling miniaturization.
Solution Approach 2:
The connection unit employs composite construction with the circuit carrier made of one material and the printed circuit board made of another, allowing optimization of each component for its specific function. This composite approach enables the small connection unit to achieve sufficient mechanical strength through material properties rather than increased size.
2Manufacturing precision
If conventional connection units are used for pressure measuring cells, then assembly is straightforward, but assembly precision is insufficient
Solution Approach 1:
The circuit carrier is designed with pre-defined mounting features and precise geometric relationships between its components. The printed circuit board is configured with predetermined connection points that align with the circuit carrier, enabling high assembly precision through pre-planned positioning rather than complex adjustment procedures during assembly.
Solution Approach 2:
The connection unit incorporates localized precision features at specific critical interfaces, such as the mounting surfaces between the circuit carrier and printed circuit board. These localized precision elements concentrate the complexity only where needed for accurate alignment and connection, while the rest of the structure remains simple.
3Productivity
If conventional connection units are used for pressure measuring cells, then manufacturing costs are controlled, but production efficiency is reduced
Solution Approach 1:
The circuit carrier is designed as a multi-functional component that provides structural support, electrical connection pathways, and mounting functionality for the printed circuit board. This universal design allows a single component to fulfill multiple roles, reducing the total number of parts and simplifying the manufacturing process while enabling more compact and efficient production.
Solution Approach 2:
The connection unit is divided into distinct modular segments - the circuit carrier and the printed circuit board - that can be manufactured separately using optimized processes for each component type. This segmentation allows parallel production of components, improving overall production efficiency while maintaining ease of manufacture through standardized processes for each segment.
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 achieves a compact, mechanically strong, and cost-effective design with enhanced assembly precision and robustness, supporting miniaturization and easy manufacturability while ensuring reliable electrical connections and protection against environmental factors.
Implementation Method 1
conductive adhesive dots for reliable contact
Data Source
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AI summary
The invention proposes a connection unit for a pressure measuring cell, comprising at least one pressure measuring cell (40) which detects, in particular, a pressure of a hydraulic block, wherein the pressure measuring cell (40) has at least one connection point (18) via which at least one electrical output signal from the pressure measuring cell (14) can be tapped off, having at least one circuit mount (20) on which at least one electronic component (26) and/or a printed circuit board (32) with an electronic component (26) can be arranged, wherein the circuit mount (20) has at least one external conductor track (47), for the purpose of establishing contact between the connection point (14) and the electronic component (26), wherein at least one contact means (51) is provided, via which an output signal from the electronic component (26) can be tapped off, wherein the electronic component (26) is connected to the contact means (51) via at least one external conductor track (47) of the circuit mount (20).