Fuse Switch Disconnector Cover with Access Openings
Solution Overview
Problem
Existing fuse switch disconnectors require multiple manual operations to access screws for assembly and conversion, often necessitating the removal or lifting of the upper part and switching covers, which complicates the process and increases the risk of safety hazards.
Innovation Solution
The design incorporates openings in the switching cover above the fastening bolts, allowing access to screws without opening or removing the shift cover, enabling the upper part to be removed with closed switch covers, and utilizing a guide sleeve to direct tools safely to the fastening means, reducing the number of required actions and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the upper part and switching covers are removed to access fastening bolts, then accessibility to screws is improved, but the number of manual operations increases and safety risks increase
Solution Approach 1:
The switching cover is segmented to include a specific opening that provides access to the fastening bolts. This segmentation allows the cover to remain partially in place while enabling tool access to the bolts, thus maintaining safety and reducing the number of removal operations required.
Solution Approach 2:
An opening in the switching cover acts as an intermediary element that mediates between the need for bolt accessibility and the need to maintain cover integrity. This opening allows the cover to stay attached while providing a passage for tools to reach and operate the fastening bolts.
2Ease of operation
If multiple components are removed for assembly and conversion, then access to fastening means is achieved, but time consumption and effort increase
Solution Approach 1:
The switching cover is divided to create a specific access opening that allows tools to reach the fastening bolts without requiring complete removal of the cover. This segmentation enables quick access during assembly and conversion operations, significantly reducing the time required compared to removing and reattaching multiple components.
3Ease of operation
If the upper part is removed for mounting on busbars, then mounting accessibility is improved, but the risk of safety hazards increases
Solution Approach 1:
The opening in the switching cover serves as an intermediary that allows tool access to the fastening bolts while the cover remains attached. This intermediary structure maintains the protective barrier against safety hazards while enabling the mounting operations to proceed with improved accessibility.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The power switch block has a lower section and an upper section (3), where the upper section has an adjustable switching cover (4). A mounting unit is provided in the upper section for attaching the upper section with the lower section. An opening (6) is provided at each mounting unit on the switching cover. The switching cover is arranged with an opening in longitudinal direction (L1) of the power switch block between a primary safety device measurer of a primary protection unit and a secondary safety device measurer of a secondary protection unit.