Automation I/O Module Single PCB Optical Waveguide Front Access
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Solution Overview
Problem
Existing input/output modules in automation devices are bulky, costly, and complex due to the use of multiple printed circuit boards, with connection terminals inaccessible from the front side, making them inefficient in terms of space and production cost.
Innovation Solution
Reducing the number of printed circuit boards by integrating electronic subassemblies and connection elements, such as pluggable terminals, on a single board, with optical waveguides for displaying the state of input/output channels, allowing for a more compact and cost-effective design with accessible connection elements from the front side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple printed circuit boards are used to implement input/output module functions, then functional reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple previously separate printed circuit boards (electronic subassembly board, connection terminal board, display board) into a single integrated printed circuit board. This consolidation maintains all necessary functions (signal processing, connections, display) while eliminating the complexity of multiple separate boards, directly resolving the contradiction between reliability and device complexity.
2Reliability
If multiple printed circuit boards are used, then functional reliability is improved, but manufacturing cost increases
Solution Approach 1:
By merging multiple printed circuit boards into one, the patent reduces the number of components that need to be procured, assembled, and tested. This single-board design simplifies the manufacturing process, reduces assembly steps, and lowers overall production costs while preserving all necessary input/output functions.
3Reliability
If connection terminals are routed out of the housing rear, then electrical connectivity is achieved, but ease of operation deteriorates due to inaccessibility from front side
Solution Approach 1:
The patent changes the spatial arrangement of connection terminals by integrating them on the front side of the single printed circuit board, accessible through the housing front. This dimensional repositioning from rear-to-front accessibility maintains electrical connectivity while dramatically improving ease of operation for connection and maintenance.
4Adaptability or versatility
If multiple printed circuit boards are arranged in the housing, then functional capabilities are achieved, but the housing volume increases
Solution Approach 1:
The patent merges multiple functional printed circuit boards into a single compact board that integrates electronic subassemblies, connection terminals, and display elements. This consolidation maintains full input/output functionality while significantly reducing the space required, thereby decreasing housing volume.
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 results in a more compact, cost-effective input/output module with reduced production complexity, enabling easier access to connection elements and efficient signal processing, while maintaining the functionality of displaying the operating state of input/output channels.
Implementation Method 1
optical waveguides which are intended to focus the light from the display means and contactlessly transmit it to the front side of the input/output module
Data Source
AI summary
An input/output module for an automation device includes a housing having a lower part separable from an upper part; a first printed circuit board disposed in the housing; and an electronic subassembly for an input/output function of the input/output module. The electronic subassembly includes a plurality of connection elements disposed on the first printed circuit board and configured to connect signal lines and process voltage lines, the plurality of connecting elements being accessible from a front side of the upper part; and a plurality of optical waveguides disposed on the front side, wherein each one of the plurality of optical waveguides is assigned to a respective one of the plurality of connection elements and each configured to signal a state of at least one input/output channel of the input/output module.