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Anti-explosion reactive power contactor

A technology of contactors and connecting seams, which is applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems of reducing the service life of contactors, low contact reliability, and increasing production costs, and achieve the effect of reducing electromagnetic

Inactive Publication Date: 2013-08-21
高建忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing contactor still needs to energize the coil to maintain its work after being pulled in, which not only consumes a lot of electric energy, but also makes its own electromagnetic system in a state of heating for a long time, which is prone to high temperature and noise, which not only destroys the working environment, but also The service life of the contactor is reduced, and there is even a risk of explosion, and the general contact reliability is also low. When a small amount of dust is attached to the electromagnet's suction surface, the coil is also easy to burn, which further increases the operating cost of the enterprise. production cost

Method used

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Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific illustrations.

[0022] like Figure 1-3 As shown, a reactive explosion-proof contactor includes a fixed magnet 1, a movable magnet 4, a coil 3 and a casing 6, wherein the casing 6 includes an upper casing 11 arranged on the upper side and a lower casing 12 arranged on the lower side; the coil 3 Sleeved on the fixed magnet 1 fixedly arranged in the upper casing 11, and electrically connected with the control module arranged in the upper casing 11, that is, the analog and / or digital circuit hybrid circuit board 2; the movable magnet 4 can move up and down Inside the lower casing 12, the contact device 5 is arranged in the lower casing 12, and is located below the movable magnet 4, and the contact 51 is arranged directly below the movable magnet 4, and the movabl...

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Abstract

The invention relates to the field of electrical automation, in particular to an anti-explosion reactive power contactor. The anti-explosion reactive power contactor controls a magnetic field of magnetic steels through a mixed circuit board so as to drive a contact in a contact device to be attracted or repulsed, and keeps an attracted state or a repulsed state of the contact through a relatively static magnetic field so as to achieve the purpose that a controlled circuit is opened or closed, namely, the moment the contact is attracted or repulsed and little electric energy is consumed, the purpose that the controlled circuit is controlled can be achieved. A sealed shell can further ensure that contacting sparks are completely isolated from the outside air so as to play a role in preventing explosion, and can reduce electromagnetism and mechanical noise.

Description

technical field [0001] The invention relates to the field of electrical automation, in particular to a reactive explosion-proof contactor. Background technique [0002] Contactor (Contactor) refers to the use of coils to flow current in industrial electrical automation to generate a magnetic field to close the contacts to achieve load control electrical appliances, as frequent closing, carrying and breaking of normal current and specified overload current breaking The closing device is generally composed of an electromagnetic system (iron core, static iron core, electromagnetic coil) contact system (normally open contact and normally closed contact) and an arc extinguishing device; the principle is that when the electromagnetic coil of the contactor is energized, It will generate a strong magnetic field, which will make the static iron core generate electromagnetic attraction to attract the armature, and drive the contacts to move (normally closed contacts open or normally ...

Claims

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Application Information

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IPC IPC(8): H01H50/02H01H50/04
Inventor 高建忠
Owner 高建忠
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