Rotary Unit Concave Polygon Base Frame Integration
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Solution Overview
Problem
Conventional rotary units in switching devices, such as disconnectors, require significant efforts to accommodate design variations and demand additional stabilizing elements to handle mechanical stresses and environmental loads, leading to increased complexity and costs.
Innovation Solution
A rotary unit with a concave polygon shape is physically integrated into the base frame, reducing the need for additional stabilizing elements by providing a rigid and cost-optimized structure that distributes mechanical stresses evenly, using extrusion or casting processes to create concave surfaces for improved manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional rotary units are used with casted or welded construction, then mechanical strength is sufficient, but device complexity and manufacturing effort increase significantly
Solution Approach 1:
The rotary unit is merged with the base frame into a single integrated component. The rotary unit forms an integral part of the base frame, eliminating the need for separate stabilizing elements and reducing assembly complexity while maintaining mechanical strength through the unified structure.
Solution Approach 2:
The integrated rotary unit serves multiple functions: it provides rotational movement for the contact arms, acts as a structural support element, and serves as a stabilizing component for the base frame. This multi-functionality reduces the overall number of components needed in the switching device.
2Stability of the object's composition
If additional stabilizing elements are added to handle mechanical stresses, then mechanical stability improves, but device complexity and manufacturing costs increase
Solution Approach 1:
The rotary unit is merged with the base frame into a single integrated component. The rotary unit forms an integral part of the base frame, eliminating the need for separate stabilizing elements and reducing assembly complexity while maintaining mechanical strength through the unified structure.
3Ease of manufacture
If conventional rotary units with semi-integration are used, then assembly is straightforward, but additional stabilizing elements are required for enhanced mechanical strength
Solution Approach 1:
The rotary unit is merged with the base frame into a single integrated component. The rotary unit forms an integral part of the base frame, eliminating the need for separate stabilizing elements and reducing assembly complexity while maintaining mechanical strength through the unified structure.
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A switching device (100) is provided. The switching device has movable current path arms (101A, 101B) detachably coupled with one another, for controlling transfer of electrical current therebetween, at least one insulator (104A, 104B) operably connected with the moveable current path arms (101A, 101B), a base frame (106) supporting the insulators and the moveable current path arms (101A, 101B), and at least one rotary unit (201) physically integrated with the base frame (106) and configured to support said at least one insulator (104A, 104B). The rotary unit (201) is configured as a generally concave polygon having at least one surface (201A, 201B, 201E) physically disposed against the base frame (106).