DC electric-manual dual-purpose isolating switch

A technology of isolating switch and direct current, which is applied in the direction of electric switch, air switch components, circuits, etc., can solve the problems of fusible welding of switch contacts, limitation of switch cabinet width, small withstand current, etc., to eliminate fire safety hazards, Improved operational reliability and high safety effects

Active Publication Date: 2017-04-19
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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  • DC electric-manual dual-purpose isolating switch
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  • DC electric-manual dual-purpose isolating switch

Examples

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Embodiment Construction

[0040] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0041] Such as figure 1 As shown, a DC-electric manual dual-purpose isolating switch includes 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 by 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 In between, the locking mechanism 4 is provided on the surface of the base plate 9 away from the mounting plate 1, and the locking mechanism 4 unlocks or locks the transmission mechanism 6, which is...

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PUM

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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 and manual dual-purpose isolating switch. Background technique [0002] DC electric manual isolation switches are widely used in DC traction power supply systems such as rail transit, metallurgy, mining, etc., as electrical connection and disconnection, and also used to isolate electrical equipment during maintenance. With the continuous improvement of the performance requirements of the DC isolation switch in the DC traction power supply system, the DC isolation switch is required to have higher mechanical operation, reliability and stability of electrical interlocking. [0003] At present, the direct current electric manual isolating switch mainly adopts the rotating mode, namely the rotating movable contact and the fixed static contact. The structure is generally arranged horizontally, especially when the multi-pole switch is installed in a switch cabinet, ...

Claims

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Application Information

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Patent Type & Authority Applications(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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