Portable Single-Phase Air Bypass Switch with Fast Opening and Closing
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Solution Overview
Problem
Current single-phase air bypass switches for live 10 KV power distribution networks have limitations such as low closing speed, lack of both quick opening and closing functionalities, small capacitive current capacity, and safety concerns due to invisible contact engagement status, making them inefficient and hazardous for maintenance and repair work.
Innovation Solution
A portable single-phase air bypass switch with integrated fast-opening and fast-closing functionalities, visible contact engagement status, and a design that allows suspension on overhead lines without a frame or base, featuring a transparent polycarbonate housing and serrated contacts to enhance arc dispersion, addressing the limitations of existing switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If common single-phase air bypass switches are used, then the device structure is simple, but the closing speed is low and contact head may be burned and damaged
Solution Approach 1:
The patent implements a dynamic closing mechanism where the conductive rod can be quickly inserted into the socket to achieve fast closing. The switch-closing member includes a spring-loaded mechanism that enables rapid contact engagement when the conductive rod is inserted, transforming the static structure into a dynamic system capable of high-speed operation.
Solution Approach 2:
The switch is divided into separate functional modules: the housing member with socket, the conductive rod with switch-opening member, and the switch-closing member. This segmentation allows each component to be optimized independently - the socket provides structural support while the conductive rod delivers fast closing action, resolving the contradiction between simplicity and speed.
2Adaptability or versatility
If single-phase air bypass switches with closing function only are used, then the device structure is simple, but the functionality is limited and cannot perform both quick opening and quick closing
Solution Approach 1:
The patent creates a universal switch device that can perform both opening and closing operations. The switch-closing member and switch-opening member are integrated into the same housing, allowing the device to function as both a closing switch and an opening switch depending on the operational mode, thereby achieving multi-functionality without requiring separate devices.
Solution Approach 2:
The patent merges the closing function (switch-closing member) and opening function (switch-opening member) into a single integrated device. The conductive rod serves dual purposes: it can be inserted to trigger closing operations and pulled to trigger opening operations, combining multiple functions into one versatile tool.
3Quantity of substance
If single-phase bypass switches with small capacity are used, then the device is lightweight and portable, but the capacitive current is limited to less than or equal to 3 A
Solution Approach 1:
The patent changes the electrical parameter capacity of the switch by designing the conductive circuit member with higher current carrying capability. The conductive rod, socket, and internal wiring are sized and configured to handle capacitive currents greater than 10 A, representing a significant parameter increase from conventional 3 A switches while maintaining portability through efficient material selection.
4Reliability
If the engaging status between stationary contact and movable contact is not visible, then the device structure is simple, but safety concerns arise due to inability to verify contact engagement
Solution Approach 1:
The patent uses visual indication through color changes or transparency to show contact engagement status. The housing member or contact components are designed with visible indicators that change appearance (such as transparent sections showing contact position or colored indicators) to provide immediate visual feedback on whether contacts are properly engaged, enhancing safety without major structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The switch effectively enhances operational efficiency and safety by enabling both quick opening and closing, supporting high capacitive currents, and preventing electrical burns, while being lightweight and easy to maintain, thus meeting the requirements of live 10 KV power distribution networks.
Implementation Method 1
featuring a transparent polycarbonate housing
Implementation Method 2
serrated contacts to enhance arc dispersion, addressing the limitations of existing switches
Data Source
AI summary
The present invention provides a portable single-phase air bypass switch for live power distribution network, including a housing member, a positioning member, a conductive circuit member, a clutch member, a switch-closing member and a switch-opening member. The positioning member includes a positioning nut, positioning frames, and a positioning column. The conductive circuit member includes a conductive end cover, an upper conductive rod, a pressing sleeve, a coupling nut, a conductive sleeve pipe, a stationary contact, a movable contact, and a lower conductive rod. The switch-closing member includes a switch-closing energy-storage rod, a switch-closing energy-storage ring, a switch-closing spring, a switch-closing positioning pin, a switch-closing release ring, and an inner sleeve pipe. The switch-opening member includes a small shaft, a switch-opening spring, a stopping block, a switch-opening energy-storage shaft, a connection rod, a switch-opening energy-storage pressing head, a switch-opening positioning pin, and a switch-opening release ring.