CN202957171U

CN202957171U - Arc extinguishing mechanism

Info

Publication number: CN202957171U
Application number: CN 201220445470
Authority: CN
Inventors: 屠世文; 徐静; 屠婕娜
Original assignee: WENXIANG ELECTRICAL APPLIANCE Co Ltd OF CIXI ECONOMIC DEVELOPMENT ZONE
Current assignee: WENXIANG ELECTRICAL APPLIANCE Co Ltd OF CIXI ECONOMIC DEVELOPMENT ZONE
Priority date: 2012-08-23
Filing date: 2012-08-23
Publication date: 2013-05-29
Anticipated expiration: 2022-08-23

Abstract

An arc extinguishing mechanism is composed of a plastic cement module, magnetic blow-out coils, an arc extinguishing cover and a pedestal. The plastic cement module is arranged on the pedestal, a main contact and an auxiliary contact are inlaid on the plastic cement module, and the arc extinguishing cover is arranged on the plastic cement module; arc extinguishing slices made of metal materials are arranged in the arc extinguishing cover, and the magnetic blow-out coils are sealed in the plastic cement module below a fixed contact, so that the insulating property is enhanced, and the heat radiation is rapid; when the contacts produce an arc and under the magnetic field effects generated by the magnetic blow-out coils, the arc is elongated by the effect of an electromagnetic force, is blown in the arc extinguishing cover composed of the arc extinguishing slices, and is contacted with the arc extinguishing slices, so that the arc is cooled to be quenched.

Description

A kind of arc-extinguishing mechanism

Technical field

The utility model relates to a kind of electric elements, specifically the arc-extinguishing mechanism in a kind of electromagnetic contactor.

Background technology,

Blowout coil in the common contactor does not seal, such setting and easily heating, and power consumption is large, although people have done many improvement, but the problem that the unavoidable arc quenching effect of main contacts is poor, this not only directly affects the useful life of contactor, but also can cause the malfunction of contactor, even initiation fire.

The utility model content

In order to remedy the above-mentioned deficiency of contactor arc-extinguishing mechanism, the utility model provides a kind of arc-extinguishing mechanism, and the method is enclosed in blowout coil in the plastic module under the fixed contact, so not only avoided by the electric arc flower burn may, and accelerated heat radiation, make it reach good arc quenching effect.

The utility model solves the technical measures that its technical problem takes, arc-extinguishing mechanism is comprised of plastic module, blowout coil, arc extinguishing cover and pedestal, and described plastic module is made square, and binding post is fixed on the both sides of plastic module, primary and secondary contact is embedded on the plastic module, and connects binding post; Plastic module is installed on the pedestal, described arc extinguishing cover is installed on the plastic module, with primary and secondary contact cover in arc-extinguish chamber, the arc quenching plate that metal material is made is set in arc-extinguish chamber, the joint of arc quenching plate is arranged on the lower end of arc extinguishing cover, and described blowout coil is comprised of iron core, insulating case, coil and joint, at the iron core external insulating sleeve, coil is characterized on insulating case; Blowout coil is enclosed in the plastic module under the fixed contact, the joint of blowout coil connects the joint of arc quenching plate in the arc-extinguish chamber, and this is auspicious not only to have strengthened insulation property, and rapid heat dissipation, during use, when the contact produced electric arc, under the magnetic fields that blowout coil produces, electric arc was subjected to the effect of electromagnetic force and elongates, be blown in the arc-extinguish chamber that is consisted of by arc quenching plate, contact with arc quenching plate, electric arc is cooled and extinguishes, thereby reaches the purpose of good arc extinguishing.

The beneficial effects of the utility model are, the blowout coil rapid heat dissipation, and arc quenching effect is good, compact conformation.

Description of drawings

Be described further the utility model is bright below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram of arc-extinguishing mechanism in a kind of arc-extinguishing mechanism;

Fig. 2 is the structural representation of blowout coil in a kind of arc-extinguishing mechanism.

Among the figure, 1. plastic module, 2. blowout coil, 3. arc extinguishing cover, 4. pedestal, 5. binding post, 6. contact, 7. arc quenching plate, 8. joint, 9. iron core, 10. insulating case, 11. coils, 12. joints.

Embodiment

In Fig. 1, arc-extinguishing mechanism is comprised of plastic module 1, blowout coil 2, arc extinguishing cover 3 and pedestal 4, and described plastic module is made square, binding post 5 is fixed on the both sides of plastic module, contact 6 is embedded on the plastic module, and connects binding post, and plastic module 1 is installed on the pedestal 4; Described arc extinguishing cover 3 is installed on the plastic module, and primary and secondary contact cover in arc-extinguish chamber, is arranged the arc quenching plate 7 that metal material is made in arc-extinguish chamber, and the joint 8 of arc quenching plate is arranged on the lower end of arc extinguishing cover.

In Fig. 2, described blowout coil 2 is comprised of iron core 9, insulating case 10, coil 11 and joint 12, and at iron core 9 external insulating sleeves 10, coil 11 is characterized on insulating case 10; Blowout coil 2 is enclosed in the plastic module 1 under the fixed contact.

Claims

1. arc-extinguishing mechanism, it is characterized in that: arc-extinguishing mechanism is comprised of plastic module, blowout coil, arc extinguishing cover and pedestal, described plastic module is made square, binding post is fixed on the both sides of plastic module, primary and secondary contact is embedded on the plastic module, and the connection binding post, plastic module is installed on the pedestal; Described arc extinguishing cover is installed on the plastic module, and primary and secondary contact cover in arc-extinguish chamber, is arranged the arc quenching plate that metal material is made in arc-extinguish chamber, and the joint of arc quenching plate is arranged on the lower end of arc extinguishing cover; Described blowout coil is enclosed in the plastic module under the fixed contact, and the joint of blowout coil connects the joint of arc quenching plate in the arc-extinguish chamber.

2. a kind of arc-extinguishing mechanism according to claim 1, it is characterized in that: described blowout coil is comprised of iron core, insulating case, coil and joint, is inserted in insulating case outside iron core, and coil is on insulating case.