Electrical Switching Device Modular Auxiliary Contact Integration
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Solution Overview
Problem
Existing electrical switching devices lack auxiliary contact terminals for operation control, leading to complex maintenance and increased size, which is undesirable for applications requiring a compact footprint.
Innovation Solution
An electrical switching device integrating a power switching module with three input and three output terminals, a control module with at least one input and one output control terminal, and an auxiliary contact terminal, where the power module is removable, allowing easier maintenance and reduced dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If auxiliary contact terminals are added to enable operation control, then the device functionality is improved, but the device size increases
Solution Approach 1:
The patent merges the auxiliary contact terminals with the existing control module structure. The auxiliary contacts are integrated into the same housing and mounting structure as the control terminals, combining multiple functions (control and auxiliary contacts) into a single modular unit, thereby avoiding additional space requirements
2Strength
If the power module is integrated permanently with the control module, then the structural strength is improved, but the ease of repair deteriorates
Solution Approach 1:
The patent divides the switching device into distinct modular segments: a power module containing the power contact terminals and switching elements, and a control module containing the control terminals and auxiliary contacts. These modules are designed to be separable while maintaining structural integrity when assembled, allowing the power module to be removed and replaced independently for maintenance purposes
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
Facilitates easier maintenance and reduces the device's size by using a common input terminal for two output terminals, enabling a compact design while maintaining operational functionality.
Implementation Method 1
a movable contact, capable of switching between an open position and a closed position according to a positioning of the movable contact relative to the fixed contact, said movable contact being capable of being moved by an electromagnetic drive device
Data Source
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AI summary
An electrical switching device including an electric power switching module including a block of three input terminals and three output terminals, each input or output terminal being connected to a stationary contact of an electrical switch also including a mobile contact, configured to switch between an open position and a closed position, the mobile contact configured to be moved by an electromagnetic drive mechanism, and a control module, including at least one control input terminal and at least one control output terminal. The control module includes the electromagnetic drive mechanism configured to be supplied by the control terminals to control a position of one of the mobile contacts. A supervision module includes an auxiliary input contact terminal and two auxiliary output contact terminals, the auxiliary input contact terminal being shared by the two auxiliary output contact terminals, the power module being removable separately from the control and supervision modules.