Configurable Isolator Module Orientation for Intrinsic Safety
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Solution Overview
Problem
Universal isolators for intrinsically safe environments lack adaptability in operational configurations, leading to potential dangerous incorrect connections due to fixed safety elements that do not accommodate varying voltage and current requirements across different applications.
Innovation Solution
An electronic isolator device with a removable isolator module and safety module that can be connected in multiple orientations, allowing for automatic selection of safety components based on the mode of operation, separating isolation and safety electronics to enable adaptable functionality such as input and output voltage configurations, and digital/analog domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed safety elements are used in universal isolators, then device simplicity is maintained, but adaptability to different operational configurations is lost
Solution Approach 1:
The patent implements dynamic configurability by allowing the isolator module to be connected to the barrier module in multiple orientations (0°, 90°, 180°, 270°), where each orientation automatically configures the safety components for different operational modes. This dynamic reconfiguration capability enables the same physical hardware to adapt to various voltage and current requirements without requiring multiple different devices.
2Adaptability or versatility
If different pins with different connections are provided to resolve voltage/current requirements, then adaptability is improved, but risk of dangerous incorrect connections increases
Solution Approach 1:
The patent employs asymmetric connector design where the isolator module connector has a specific geometric configuration that only allows connection to the barrier module in certain orientations. This asymmetric physical interface prevents incorrect connections by making it mechanically impossible to connect the device in wrong orientations, thereby eliminating the risk of dangerous wiring errors while maintaining adaptability across multiple operational configurations.
Solution Approach 2:
The patent uses visual indication methods (such as color-coded markings or visual indicators on the connector housing) to show the correct orientation for connection. These visual cues guide users to connect the isolator module in the proper orientation, preventing incorrect connections through intuitive visual feedback rather than relying solely on mechanical constraints.
3Ease of manufacture
If safety elements are fixed and not adaptable, then manufacturing simplicity is maintained, but operational versatility across different applications is reduced
Solution Approach 1:
The patent achieves universality by designing a single barrier module that can support multiple operational configurations through the orientable isolator module. The barrier module contains universal safety components (resistors, capacitors, diodes) that are configured for different applications simply by changing the orientation of the isolator module, not by changing the barrier module itself. This multi-functional approach allows one device to replace multiple application-specific devices.
Data Source
AI summary
The present invention provides for an electronic isolator device for application in intrinsically safe environments having isolation and safety functionality and comprising: an isolator module (101), a safety module (100), and wherein the isolator module is arranged for removable physical/electrical connection to the safety module in at least two orientations/configurations (DO, Dl, Al, AO) relative to the safety module, wherein the electrical connection to the safety module in each of the at least two orientations/configurations serves to configure the electrical functionality of the safety module (100).