Tap Changer Vacuum Switch Tube Actuation via Multi-Surface Cam Disk
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Solution Overview
Problem
Existing tap changers with vacuum-switching tubes require a large amount of space due to the need for separate cam disks for each vacuum-switching tube, which becomes a constraint when a large number of tubes are used, leading to insufficient installation space and constructional compromises.
Innovation Solution
Cam disks with profiled annular formations on the upper side, lower side, and edge allow for the actuation of multiple vacuum-switching tubes using a combination of these surfaces, reducing the number of components and space required, enabling compact construction and efficient switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cam disks are provided for each vacuum-switching tube, then each tube can be actuated reliably, but the installation space required becomes excessively large
Solution Approach 1:
The patent combines multiple cam disks into a single integrated cam disk structure. Instead of providing separate cam disks for each vacuum-switching tube, the invention integrates multiple cam profiles on different surfaces (upper side, lower side, and edge) of one cam disk, allowing all vacuum-switching tubes to be actuated by a single component.
Solution Approach 2:
The patent utilizes three-dimensional space by positioning cam profiles on multiple surfaces of the cam disk - the upper side, lower side, and edge. This multi-surface approach allows cam profiles for different vacuum-switching tubes to be arranged in different spatial dimensions, maximizing space utilization and reducing the overall footprint.
2Adaptability or versatility
If multiple vacuum-switching tubes are used to achieve the required switching sequence, then the switching functionality is improved, but the number of components and space requirement increase
Solution Approach 1:
The single cam disk serves multiple functions by incorporating cam profiles for actuating multiple different vacuum-switching tubes on its upper side, lower side, and edge. This universal component replaces what would traditionally require multiple separate cam disks, reducing component count while maintaining full switching sequence capability.
Solution Approach 2:
The invention merges the functionality of multiple separate cam disks into one integrated component. The cam disk combines multiple cam profiles that would otherwise require separate disks, thereby reducing the total number of components while preserving the ability to actuate all vacuum-switching tubes in the required sequence.
Data Source
AI summary
The invention relates to a stepping switch comprising vacuum switching tubes. The general inventive concept consists in providing one or more cam disks which have profiled circumferential contours both on the upper or lower face as well as on the lateral face, said contours being in the shape of cams for example, so that the vacuum switching tubes can be actuated by both the profiled circumferential contour of the lateral face as well as by the contour of the upper or lower face.