Switching Apparatus Inductance Power Source
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Solution Overview
Problem
Existing switching apparatuses for circuit interruption devices require a standalone power source for switching elements, which increases hardware cost, size, and weight, and may not be compatible with varying voltage levels, especially in high-voltage applications.
Innovation Solution
Incorporating an inductance element that derives energy from the current flowing through the switching apparatus to power the second switching element, eliminating the need for a standalone power source and allowing operation across incompatible voltage levels, with the inductance element configured as a power source to drive the second switching element's operations, including turn-on and turn-off, and auxiliary functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standalone power source is used for the second switching element, then the switching element can be reliably powered, but the hardware cost, size, and weight increase
Solution Approach 1:
The inductance element is integrated into the switching apparatus structure, combining the power generation function with the existing current-conductive branch. This merging eliminates the need for a separate standalone power source, reducing hardware weight while maintaining reliable power supply to the second switching element through the generated voltage
Solution Approach 2:
The switching apparatus generates its own power internally through the inductance element that produces voltage from the current flowing through it. This self-service mechanism eliminates external power dependencies, reducing both weight and complexity while ensuring reliable operation of the second switching element
2Reliability
If a standalone power source is used for the second switching element, then the power supply is stable, but the device size and cost increase
Solution Approach 1:
The inductance element is merged with the existing switching apparatus structure, eliminating the need for separate power source components. This integration reduces device size and area while maintaining stable power supply through the voltage generated by the inductance element from the flowing current
Solution Approach 2:
The inductance element serves multiple functions: it acts as both a circuit component for current conduction and a power generation source for the second switching element. This multi-functionality eliminates the need for dedicated power source hardware, reducing device size while ensuring stable operation
3Adaptability or versatility
If a standalone power source is used, then the switching element can operate at any voltage level, but the hardware complexity and cost increase
Solution Approach 1:
The inductance element dynamically generates voltage based on the current flowing through it, automatically adapting to different voltage levels and operating conditions. This parameter-based adaptation eliminates the need for complex voltage conversion circuits or multiple power sources, reducing hardware complexity while maintaining versatility across different voltage levels
Solution Approach 2:
The switching apparatus self-adjusts to different voltage levels through the inherent characteristics of the inductance element, which generates appropriate voltage based on the flowing current. This self-service mechanism eliminates the need for external voltage regulation or multiple power sources, reducing hardware complexity while maintaining adaptability
4Device complexity
If the inductance element is used as a power source, then hardware cost and size are reduced, but the power supply capability must be sufficient for switching operations
Solution Approach 1:
The inductance element is positioned to generate voltage in advance during current flow, preparing the power supply before the switching operation is needed. This preliminary action ensures that sufficient power is available for turn-on and turn-off operations without requiring complex power management circuits, maintaining hardware simplicity while ensuring adequate power capability
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
This configuration reduces hardware costs and size, provides a reliable power supply for switching elements, and allows for flexible design accommodating different electrical potentials, enabling efficient operation even at high voltage levels without a standalone power source.
Implementation Method 1
a change in current flowing through the switching apparatus results in a corresponding change in current through the inductance element, which in turn generates a voltage across the inductance element
Data Source
AI summary
A switching apparatus comprises: a first current-conductive branch (12) including a first switching element (24), the first switching element (24) configured to be switchable to selectively permit and block a flow of current in the first current-conductive branch (12); a second current-conductive branch (14) including a second switching element (32), the second switching element (32) configured to be switchable to selectively permit and block a flow of current in the second current-conductive branch (14); and first and second terminals (18,20) for connection, in use, to an electrical network (22), wherein the first and second current-conductive branches (12,14) extend between the first and second terminals (18,20), wherein the switching apparatus further includes an inductance element (44) configured to carry, in use, a current flowing through the switching apparatus, the inductance element (44) electrically coupled to the second switching element (32) so that the inductance element (44) is configured as a power source for enabling the operation of the second switching element (32).