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A DC electric manual dual-purpose isolating switch

A technology of isolating switch and direct current, applied in electrical switches, air switch parts, circuits, etc., can solve the problems of easy welding of switch contacts, limitation of switch cabinet width, burning of electromagnets, etc., to eliminate hidden dangers of fire safety and improve Operational reliability, fast assembly results

Active Publication Date: 2019-01-29
WUHAN ZHONGZHI ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structural form is generally arranged horizontally, especially when the multi-pole switch is installed in the switch cabinet, it is not suitable for the compact switch cabinet due to the limitation of the width of the switch cabinet.
In the prior art, the locking mechanism of the DC electric manual isolating switch is often stuck and unable to be pulled out because of the locking pin, which causes the electromagnet to be energized for a long time, heat up and burn out
Also, when there is a short-circuit fault in the equipment line, the DC electric manual isolating switch withstands a short-circuit short-term withstand current is small, and the switch contacts are easy to weld and cannot work normally.
Unable to meet the requirements of high reliability, safety and miniaturization of power distribution system

Method used

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  • A DC electric manual dual-purpose isolating switch
  • A DC electric manual dual-purpose isolating switch
  • A DC electric manual dual-purpose isolating switch

Examples

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Embodiment Construction

[0040] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0041] Such as figure 1 As shown, a DC electric manual dual-purpose isolating switch, a mounting plate 1, a main circuit conductive mechanism 2, a support rod 3, a locking mechanism 4, a manual unlocking mechanism 5, a transmission mechanism 6, a base plate 9 and a handle mechanism 10.

[0042] The mounting plate 1 and the base plate 9 are arranged at intervals through the support rod 3, and the main circuit conductive mechanism 2 and the transmission mechanism 9 are both arranged between the mounting plate 1 and the base plate 9 Between, the locking mechanism 4 is arranged on the surface of the base plate 9 away from the installation plate 1, and the locking mechanism 4 unlocks or locks the transmission mechanism 6...

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Abstract

The invention relates to a DC electric-manual dual-purpose isolating switch, which comprises a mounting plate, a main circuit conducting mechanism, a support rod, a locking mechanism, a manual unlocking mechanism, a transmission mechanism, a base plate and a handle mechanism. The DC electric-manual dual-purpose isolating switch not only can realize automatic switching, but also can realize manual switching, is compact in structure, convenient to use and high in safety, can bear great short-circuit short-time withstand current, greatly improves the operation reliability of a DC electric isolating switch, and eliminates potential safety hazards of a fire disaster. In addition, the DC electric-manual dual-purpose isolating switch can be quickly assembled through modular assembly.

Description

technical field [0001] The invention relates to the technical field of electrical switches, in particular to a DC electric manual dual-purpose isolating switch. Background technique [0002] DC electric manual isolating switch is widely used in rail transit, metallurgy, mining and other DC traction power supply systems, as an electrical connection and disconnection function, and is also used to isolate electrical equipment during maintenance. With the continuous improvement of DC traction power supply system's performance requirements for DC isolating switches, DC isolating switches are required to have high reliability and stability of mechanism operation and electrical interlocking. [0003] At present, the DC electric manual isolating switch mainly adopts the rotary mode, that is, the rotating movable contact and the fixed static contact. The structural form is generally arranged horizontally, especially when the multi-pole switch is installed in the switch cabinet, it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/02H01H9/28H01H3/00
CPCH01H3/00H01H9/28H01H31/02
Inventor 涂勇江阳李蕾何贤伟陈兵张光平
Owner WUHAN ZHONGZHI ELECTRIC
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