AC contactor

Abstract

The invention provides an alternating current contactor, aiming at solving the problems of an existing alternating current contactor that the consumption is uniform and the temperature rising is high. The alternating current contactor comprises a shell, a contact system, an electromagnetic system and a wiring assembly, wherein the contact system comprises a static contact, a movable contact and a movable contact support; the wiring assembly comprises a wiring board and a fastening piece; a movable contact point is arranged in the movable contact; the thickness of one side, close to the movable contact, of the movable contact point is smaller than that of the outer side; the static contact is located at the corresponding position under the movable contact and is provided with a static contact point; the lower surface of the movable contact point and the upper surface of the static contact point are parallel so that the movable contact point and the static contact point are in surface contact. According to the alternating current contactor, the consumption of the contact is uniform, the temperature rising is low, the structure is simple and the service life is long.

Description

technical field [0001] The invention relates to the field of contactors, in particular to AC contactors. Background technique [0002] In order to improve the electrical conductivity between the dynamic and static contacts of the AC contactor, the AC contactors on the market generally have silver contacts at the corresponding positions of the contacts, but the long-term contact and separation of the moving contacts and the static contacts will cause silver contacts. The wear and aging of the contacts reduces the stability of the AC contactor. After a long period of observation, when the AC contactor is running, the arc moves from the inside to the outside, and the outer side of the contact wears more seriously. The thickness of the contacts on the market is the same, and the outer side of the contact is often worn out, and there are still more residues on the inner side. , is very wasteful, and the existing AC contactor has a high temperature rise, which is not suitable for...

AI Technical Summary

Problems solved by technology

[0002] In order to improve the electrical conductivity between the dynamic and static contacts of the AC contactor, the AC contactors on the market generally have silver contacts at the corresponding positions of the contacts, but after a long period of contact and separation between the moving contacts and the static contacts, the silver contacts will be caused. The wear and aging of the contacts reduces the stability of the AC contactor

After a long period of observation, when the AC contactor is running, the arc moves from the inside to the outside, and the outer side of the contact wears more seriously. The contact thickness on the market is the same, and the outer side of the contact is often worn out, and there are still more residues on the inner side. , it is very wasteful, and the temperature rise of the existing AC contactor is high, it is not suitable for long-term use, and the service life is short

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