Split Core Transformer With Rotatable Hinge for Confined Spaces
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Solution Overview
Problem
Existing split core current sensing transformers face difficulties in installation and reassembly in crowded or limited spaces due to the need to align core portions, especially when insufficient room is available to open and maneuver the hinged portions.
Innovation Solution
A split core sensing transformer design featuring core portions that can be rotated relative to each other about two perpendicular axes, facilitated by a rotatable hinge mechanism, allowing for more efficient use of space and easier installation without disconnecting the conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hinged split core transformer is used to facilitate installation without disconnecting the conductor, then ease of installation is improved, but the device becomes too large to fit in crowded enclosures and alignment of core portions becomes difficult
Solution Approach 1:
The hinge mechanism enables the core portions to be dynamically positioned at various angles during installation, allowing the transformer to adapt to crowded enclosure spaces. The hinge allows the second core portion to be rotated relative to the first core portion, transforming the rigid structure into a flexible one that can fit through narrow access points while maintaining the split core configuration for easy installation.
Solution Approach 2:
The hinge mechanism introduces rotational freedom in a third dimension, allowing the core portions to be aligned not just in a single plane but through rotational movement. This dimensional addition enables installation in crowded spaces where linear alignment would be impossible, as the hinge allows the second core portion to be approached from different angular directions.
2Volume of moving object
If separable core portions are used to reduce space requirements, then volume is reduced, but alignment of core portions during reassembly becomes difficult in crowded spaces
Solution Approach 1:
The hinge acts as an intermediary mechanism between the two separable core portions, facilitating their alignment during reassembly. Instead of requiring direct manual alignment of the core portions (which is difficult in crowded spaces), the hinge provides a guided rotational path that automatically brings the core portions into proper alignment as they are rotated into position.
Solution Approach 2:
The hinge transforms the static alignment problem into a dynamic rotational process. During reassembly, the second core portion can be rotated dynamically through the hinge mechanism, allowing the installer to maneuver it into the correct position even in crowded enclosures, rather than requiring precise static alignment.
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
Enables convenient installation and reassembly of the transformer in confined spaces by allowing the core portions to be aligned and secured without obstructing access, improving the utilization of available space and simplifying the installation process.
Implementation Method 1
An alternating current flowing in the conductor, the primary winding of the transformer, magnetizes the core inducing a current in the coil of wire, the secondary winding
Data Source
AI summary
A split core sensing transformer comprises a first core portion and a second core portion joined to the first core portion for pivoting relative to the first core portion about a first axis and for rotation relative to the first core portion about a second axis substantially normal to said first axis.