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Arc extinguishing system of DC contactor

A DC contactor and arc extinguishing technology, which is applied in the field of arc extinguishing systems, can solve the problems of large space occupation and inability to meet the layout of space parts, and achieve the effect of convenient assembly, simple structure and strong breaking capacity

Pending Publication Date: 2019-02-01
SHANGHAI LIANGXIN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of DC arc extinguishing system takes up a lot of space and cannot meet the requirements of space parts layout in some cases.

Method used

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  • Arc extinguishing system of DC contactor
  • Arc extinguishing system of DC contactor
  • Arc extinguishing system of DC contactor

Examples

Experimental program
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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] as attached figure 1 As shown, the first embodiment provided by the present invention relates to a DC contactor, the static contact bracket 4 is installed in the mouth of the magnetic sleeve 13 to form a sealed cavity, and the two static contacts 1, 1' are inserted into the Installed on the static contact bracket one 4, one end extends into the sealing cavity corresponding to the moving contact 2, and the other end extends out of the magnetic sleeve one 13, and the static contact bracket one 4 is fixedly mounted on the insulating part one 5, the insulator-5 is fixedly installed on the armature-6, and the armature-6 is installed on the upper end surface of the electromagnetic coil frame-7, and the electromagnetic coil frame 7 is mounted on the bottom of the magnetic sleeve-13, and the moving iron core One 11 is located in the inner cavity of the ...

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Abstract

An arc extinguishing system of a DC contactor comprises two static contacts (1, 1'), a moving contact (2) and at least two permanent magnets; the two static contacts (1, 1') are connected to or disconnected from the two ends of the moving contact (1) to realize ON / OFF of the contactor; and the system is characterized in that the two permanent magnets are installed in a connecting line of the two static contacts (1, 1') and positioned between the two static contacts (1, 1'). The whole arc extinguishing system is small in size, high in disconnecting capability, simple in structure, convenient toassembly, and capable of non-polarity rapid arc extinguishing.

Description

technical field [0001] The invention belongs to the technical field of DC contactors, and in particular relates to an arc extinguishing system of a DC contactor. Background technique [0002] With the rapid development of new energy vehicles, the supporting charging piles will also be popularized in a large area, and DC contactors will be used inside new energy vehicles and charging piles. Among them, since the charging pile generally has two gun heads, in order to achieve the simultaneous operation of the two guns or the high-power operation of a single gun, a non-polar DC contactor with high index breaking is required inside the charging pile. Therefore, DC contactors that can simultaneously achieve high-index breaking and non-polarity of the main circuit are particularly important for the new energy vehicle industry. [0003] Chinese patent ZL201210038922.2 discloses a non-polar hydrogen mixed gas DC arc extinguishing system for DC contactors. The DC arc extinguishing sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/38H01H9/44
CPCH01H9/443H01H50/38
Inventor 李冰龚祚勇杨园李强于贻鹏
Owner SHANGHAI LIANGXIN ELECTRICAL
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