Remote Triggering Module for Electrical Switches
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Solution Overview
Problem
Existing multipolar electrical switches lack a straightforward and tool-free method to integrate a remote tripping function, which is essential for decentralized management and energy line control, without compromising the primary electrical interruption functionality.
Innovation Solution
A remote triggering module is designed to be easily plugged into the existing multipolar electrical switch structure, using flexible conductive strips for electrical connection and an electromagnet actuator to trigger the mechanical lock upon receiving a signal, allowing for tool-free installation and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a remote triggering system is integrated into an existing multipolar electrical switch, then the device gains decentralized management capability and remote control function, but the structural complexity and installation difficulty increase
Solution Approach 1:
The remote triggering system is divided into a separate, self-contained module that can be independently installed within the switch housing. This modular segmentation allows the remote triggering function to be added without redesigning the entire switch structure, thereby reducing the perceived complexity while maintaining adaptability.
Solution Approach 2:
The remote triggering module is nested within the existing switch housing structure, utilizing the available internal space. The module is positioned between the fixed contact and the connection device, effectively nesting the new functionality within the existing architectural framework without requiring external additions that would increase overall complexity.
2Adaptability or versatility
If conventional multipolar electrical switches are modified to include remote triggering function, then the switches gain new functionality, but the modification process becomes complex and time-consuming
Solution Approach 1:
The remote triggering module is pre-assembled with all necessary components (electromagnet, conductive strips, actuator) before installation. The flexible conductive strips are pre-formed with connection terminals, and the electromagnet is pre-positioned within the module housing. This preliminary preparation allows for rapid installation without complex on-site assembly procedures.
Solution Approach 2:
The module incorporates self-aligning features and snap-fit connections that allow it to be installed without specialized tools or complex alignment procedures. The flexible conductive strips automatically conform to the connection points, and the module's positioning features guide it into the correct location within the switch housing, enabling installers to complete the modification without extensive training or specialized equipment.
3Ease of operation
If the remote triggering module uses flexible conductive strips for electrical connection, then the connection becomes adaptable and easy to install, but the electrical connection stability may be compromised
Solution Approach 1:
The flexible conductive strips are designed with varying properties along their length: the connection terminal portions are made rigid with precise contact surfaces for stable electrical connection, while the intermediate portions remain flexible to accommodate positioning variations. This local differentiation of mechanical properties allows the strip to provide both ease of connection and reliable electrical contact at critical points.
Solution Approach 2:
The module incorporates compensation features that anticipate and accommodate variations in connection geometry. The flexible strips are pre-formed with curvature and positioning features that compensate for manufacturing tolerances and installation variations, ensuring stable electrical connection without requiring precision alignment during installation.
4Speed
If the electromagnet actuator is integrated into the remote triggering module, then the module can respond immediately to control signals, but the module size and complexity increase
Solution Approach 1:
The electromagnet actuator is merged with the mechanical lock mechanism through a common actuator member. The electromagnet's plunger directly engages with the lock's release mechanism, combining the actuation function with the locking function in a single integrated assembly. This merging eliminates the need for separate actuation and locking components, reducing the overall module size while maintaining rapid response capability.
Solution Approach 2:
The module employs a compact electromagnet design with a high magnetic field density that achieves the required actuation force in a smaller volume. The plunger core is designed with optimized magnetic circuit geometry that reduces the air gap and increases magnetic coupling efficiency, allowing for a smaller electromagnet size while maintaining the same response speed and actuation force.
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 seamless integration of remote triggering capability into existing switch devices without altering their primary function, facilitating decentralized management and ensuring immediate line interruption upon signal receipt, with visible signal indication for user awareness.
Implementation Method 1
flexible conductive strips projecting from the module and deforming elastically in contact respectively with a terminal connected to the device connection and fixed contact
Implementation Method 2
the actuator consists of an electromagnet comprising a plunger core driven in the event of a signal on the control line
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The apparatus has a remote triggering module (5) that is guided and positioned in a case. The triggering module is connected electrically to a control line by flexible conducting blades (10). The flexible conducting blades are elastically deformed with respect to a contact terminal that is connected to a connection device and a fixed contact. The flexible conducting blades are maintained mechanically by a clip and a structure of the case. The triggering module includes an actuator for operating a mechanical lock if the control line conveys an opening signal.