Switch-Disconnector Layout for Sensor Integration in Less Axial Space
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Solution Overview
Problem
Existing switch-disconnector groups in electric cabinets have a large overall size along the axis of the switch, and incorporating accessory devices like sensors increases this size further.
Innovation Solution
The switch-disconnector group design features non-coincident parallel axes for second connectors and interrupter switches, allowing for the integration of sensors without increasing the overall size, with voltage sensors positioned between the connectors and switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the second connector is aligned with the corresponding interrupter switch (making it an extension of the switch), then the electrical connection is simplified, but the overall size of the group along the axis of the switch increases
Solution Approach 1:
The patent repositions the second connector from a longitudinal alignment (along the switch axis) to a lateral position (perpendicular to the switch axis). This dimensional change allows the connector to be connected to the interrupter switch without extending the overall length of the device along the switch axis, thereby reducing the device's footprint in the critical longitudinal dimension while maintaining electrical connectivity.
2Adaptability or versatility
If accessory electronic devices such as sensors are provided on the second connector, then the functionality of the group is enhanced, but the overall size of the group along the axis of the switch is further increased
Solution Approach 1:
By positioning the second connector laterally rather than longitudinally, the patent creates available space in the longitudinal dimension that can accommodate accessory devices like sensors. The connector and its accessories are arranged in a direction perpendicular to the switch axis, allowing functional enhancement without increasing the device's length along the critical switch axis.
Solution Approach 2:
The patent integrates sensors and other accessory electronic devices within the spatial envelope created by the lateral connector arrangement. These accessory devices are nested in the space between the connector and the interrupter switch, or within the connector structure itself, allowing multiple functions to be combined without proportionally increasing the overall device size.
Data Source
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AI summary
A switch-disconnector group, the group comprising: three first connectors having parallel axes; three second connectors having parallel axes; three interrupter switch devices having parallel axes; wherein each second connector is connected to a corresponding switch device; a disconnector device selectively switchable in at least two configurations wherein in a first configuration it transfers current from the first connectors to the switch devices; wherein the axis of each second connector does not coincide with the axis of the corresponding switch device.