High-Voltage Switch Drive Mechanism for Compact Assembly
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Solution Overview
Problem
Existing high-voltage arrangements lack flexibility for assembly in closed spaces, requiring a compact and modular structure to adapt to spatial conditions, which is not achievable with the known configurations.
Innovation Solution
A high-voltage arrangement with a gear system where the switching device's position can be changed by a central axis drive, allowing for 180° rotation of the transmission and switching device within the housing without structural changes, and featuring axisymmetric housing with interchangeable viewing windows and grounding connections for easy reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a known high-voltage arrangement with outdoor bushings is used, then the switching device can be operated, but the structure is not compact and cannot be flexibly adapted to existing spatial conditions in closed rooms
Solution Approach 1:
The coupling rod is received within the drive axle, with the coupling rod's outer diameter being smaller than the inner diameter of the drive axle. This nested configuration allows the transmission components to be compactly arranged within the housing, enabling flexible adaptation to spatial conditions while maintaining operational functionality.
2Adaptability or versatility
If the transmission and switching device are mounted in a fixed position, then the structure is simple, but the arrangement cannot be rotated or reconfigured without structural changes
Solution Approach 1:
The coupling rod is designed with an asymmetric cross-sectional shape that does not possess rotational symmetry. This asymmetric design ensures that the coupling rod can only be inserted into the drive axle in a specific orientation, preventing arbitrary rotation while still allowing for controlled reconfiguration. The asymmetric shape provides inherent orientation guidance, enabling the transmission to be mounted in different positions (e.g., rotated by 180°) without requiring structural changes to the housing or components.
3Use of energy by moving object
If the contact elements have long displacement paths, then the switching range is sufficient, but unnecessary drive energy is consumed
Solution Approach 1:
The coupling rod is designed to extend beyond the drive axle in a specific direction, creating an asymmetric protrusion. This partial extension allows the contact elements to achieve sufficient switching range in the required direction while minimizing unnecessary movement in other directions. The coupling rod's selective extension enables effective switching action without requiring the full rotational capability that would result in excessive displacement paths and energy consumption.
Data Source
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AI summary
A high-voltage arrangement has at least one switching device, housing and a drive for the switching device. The switching device has a transmission which can change the switch position of the switching device. In a first switch position, the switching device connects a first connection to a second connection and, in a second switch position, connects the first connection to a third connection, and the three connections are left unconnected in a third switch position. The drive is arranged in the housing on a center axis which runs through the housing center of the housing. The drive axis is at right angles to the center axis, and the movement path of one of the electrical contact elements lies on the center axis and parallel to it.