Sensor-Integrated Feeder Connector for Digital Motor Starters
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Solution Overview
Problem
Existing feeders with circuit breakers and downstream contactors face challenges in integrating into the digital world due to constraints such as footprint, accessibility, temperature conditions, and configuration levels, leading to high investment costs and limited upgradability.
Innovation Solution
A one-piece connector with integrated sensors and evaluation units facilitates electrical connections between circuit breakers and downstream contactors, allowing for easy integration and adaptation to changing requirements, with a consistent footprint and compatibility with existing accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If typical feeders with different configurations are used to meet various application requirements, then adaptability is improved, but device complexity and manufacturing cost increase due to different housings and high investment in configuration
Solution Approach 1:
The patent applies universality by designing a standardized connector housing that can accommodate multiple sensor types (current, voltage, temperature) and configuration options through modular internal components rather than different external housings. The same basic feeder structure serves multiple functions through configurable electronics and sensor arrangements, eliminating the need for separate housing designs for each application variant.
2Adaptability or versatility
If extensive digital integration is implemented in feeders, then functionality and measurement capability are improved, but temperature conditions for electronics worsen due to proximity to high-temperature components
Solution Approach 1:
The patent resolves the temperature conflict by utilizing the spatial dimension within the connector housing to separate electronics from high-temperature components. The evaluation unit and electronic components are positioned in the connector away from the circuit breaker, creating a thermal gradient that protects temperature-sensitive electronics while maintaining functional integration. This spatial separation in the third dimension allows digital integration without exposing electronics to excessive heat.
3Ease of operation
If connection points are made more accessible for digital integration, then ease of operation is improved, but the footprint of the feeder increases
Solution Approach 1:
The connector serves as an intermediary element that provides accessible connection points for digital integration without increasing the overall feeder footprint. By placing sensors and evaluation units in the connector rather than in the main feeder body, the patent creates accessible interfaces for digital connectivity while maintaining a compact feeder structure. The connector acts as a mediator that extends functionality without expanding the primary device envelope.
Data Source
AI summary
A connector for a circuit breaker and a downstream contactor has a one-piece configuration and facilitates an electrical connection between the circuit breaker and the downstream contactor. The connector includes at least one sensor, the connector includes an evaluation unit for measured values of the sensor, and the connector includes first contacts for the circuit breaker and second contacts for the downstream contactor, both acting in the same mating direction. A feeder for connecting a load and an arrangement having a distribution system, a load and a feeder, are also provided.