PCB Housing Conductor Tracks for Flexible Board Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for electrical contacting of printed circuit boards (PCBs) in field devices for process and automation technology impose spatial restrictions and are not suitable for use in potentially explosive atmospheres, necessitating a more flexible and automatable method.
Innovation Solution
The integration of conductor tracks within the housing, manufactured using Molded Interconnect Devices (MIDs) or additive manufacturing, allows for simultaneous positioning and electrical contacting of PCBs, eliminating spatial restrictions and enabling flexible arrangement of electrical contacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional components like sockets and plugs are used for electrical contacting between printed circuit boards, then reliable electrical contact is achieved, but the number of work steps and assembly complexity increases
Solution Approach 1:
The patent combines the mechanical fastening function and the electrical contact function into a single integrated component. The housing features fastening points that simultaneously provide mechanical support and electrical contact, eliminating the need for separate sockets and plugs. This merging of functions reduces the number of components and assembly steps while maintaining reliable electrical contact between printed circuit boards.
2Productivity
If flexible connecting elements are used to contact printed circuit boards, then no additional work steps are needed, but the spatial arrangement is severely restricted
Solution Approach 1:
The patent transitions from planar electrical contacts to three-dimensional conductor tracks integrated into the housing structure. These conductor tracks can extend in multiple spatial dimensions within the housing, allowing electrical contacts to reach printed circuit boards positioned at various locations and orientations. This dimensional freedom enables flexible spatial arrangement while maintaining assembly efficiency, as the conductor tracks are pre-integrated into the housing rather than requiring additional connection steps.
3Adaptability or versatility
If conductor tracks are integrated into the housing, then spatial arrangement freedom and assembly efficiency are improved, but manufacturing complexity increases
Solution Approach 1:
The patent utilizes changes in material parameters and manufacturing processes to integrate conductor tracks into the housing. By employing injection molding techniques with conductive materials or post-molding metallization processes, the conductor tracks become an integral part of the housing structure. This approach, while requiring specialized manufacturing parameters, enables the housing to serve dual purposes as both structural support and electrical connection medium, achieving spatial flexibility without proportionally increasing manufacturing complexity.
Data Source
Figure 1a~2c
Figure 3a~4
AI summary
The invention relates to a method for positioning at least two printed circuit boards (1a, 1b) in a housing (2) of a field device in automation engineering, wherein at least the surface of the housing is nonconductive, wherein the housing (2) has, provided in it, at least a first mounting point (3a) for mounting the first printed circuit board (1a) and a second mounting point (3b) for mounting the second printed circuit board (1b) at respective prescribed positions, wherein at least one conductor track (10) arranged in the housing (2) is provided, wherein the conductor track (10) is non-detachably connected to the housing (2), and wherein the conductor track (10) makes electrical contact between the first mounting point (3a) and the second mounting point (3b), comprising the steps of: prefabricating the printed circuit boards (1a, 1b) and prefabricating the housing (2), mounting the printed circuit boards (1a, 1b) at the mounting points (3a, 3b) of the housing (2), with the mounting of the printed circuit boards (1a, 1b) involving the first printed circuit board (1a) being put into electrical contact with the first mounting point (3a) and the second printed circuit board (1b) being put into electrical contact with the second mounting point (3b), so that the first (1a) and the second (1b) printed circuit board are put into electrical contact with one another via the at least one conductor track (10).