CN2800474Y

CN2800474Y - AC contactor with readily detachable top assistant contact module

Info

Publication number: CN2800474Y
Application number: CN 200520026451
Authority: CN
Inventors: 徐景行; 刘冬英; 李克芹
Original assignee: Tianjin Baili Electronic Co Ltd
Current assignee: Tianjin Baili Electronic Co Ltd
Priority date: 2005-06-29
Filing date: 2005-06-29
Publication date: 2006-07-26
Anticipated expiration: 2015-06-29

Abstract

The utility model relates to an alternating current contactor with readily detachable top assistant contact module, which comprises a main machine. The main machine comprises a base, a main machine contact support, a counter force tower spring sheathed on the main machine contact support, a magnet yoke, an armature iron, a coil sheathed on the magnet yoke and a casing. The number of turns of the coil with 380 volt coil voltage is in the range of 9000 to 11000; the number of turns of the coil with 220 volt coil voltage is in the range of 5000 to 6500; the wire diameter of the counter force tower spring is 0.61 to 1 millimeter. Because the technical measures of enlarging the final pressure of the tower spring and reducing the turns of the coil are adopted, the spacing overtravel of the main contact of a normally open contactor with four poles or three poles of the main machine is enlarged, and a contact of a normally closed contactor with three poles can normally close; the top assistant contact can be very easily dismounted from the main machine.

Description

The easily detachable A.C. contactor of top auxiliary contact module

Affiliated technical field

The utility model belongs to electric switch, particularly relates to the easily detachable A.C. contactor of a kind of top auxiliary contact module.

Background technology

After present known 6.3A A.C. contactor main frame is being installed top auxiliary contact module, the contact support that occurs in the main frame is pushed downwards by top auxiliary contact module, cause four utmost points, three utmost points, one normally open contactor main contact to open the problem that does not go up apart from the normally closed interlock closure that reduces with three utmost points, one normally closed contactor, and top auxiliary contact module is not easy to be disassembled from main frame very much.

The utility model content

The utility model provides a kind of top auxiliary contact module easily detachable A.C. contactor for solving the technical problem that exists in the known technology.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: the top easily detachable A.C. contactor of auxiliary contact module includes main frame, described main frame includes base portion, the support of main frame contact part, be enclosed within counter-force turriform spring, yoke, armature in the support of main frame contact, be enclosed within coil and housing parts on the yoke, the number of turn of described coil: when coil voltage is 380 volts the number of turn of coil at 9000 circles in the scope of 11000 circles; When coil voltage is 220 volts the number of turn of coil at 5000 circles in the scope of 6500 circles; The steel wire diameter of described counter-force turriform spring is the 0.61-1 millimeter.

Advantage and the good effect that the utlity model has are: owing to adopted the technical measures that increase tower spring end pressure and reduce coil turn, make opening of main frame four utmost points, three utmost points, one normally open contactor main contact increase apart from the excess of stroke, but three utmost points, one normally closed interlock normally closed.And top auxiliary contact module also is easy to be disassembled from main frame.

Description of drawings

Fig. 1 is the structural representation of the utility model A.C. contactor main frame;

Fig. 2 is an A-A profile among Fig. 1;

Fig. 3 is the structural representation of top auxiliary contact module.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1,2,3, on A.C. contactor main frame 1, have the contact of normally closed auxiliary contact 2, coil 3, moving iron core 4, turriform spring 5 and A.C. contactor main frame 1 to support 6.On top auxiliary contact module 8, there is the contact of top auxiliary contact module to support 7.When the operating voltage of described coil 3 was 380 volts, the number of turn of coil was 10125 circles, and when the operating voltage of described coil 3 was 220 volts, the number of turn of coil was 5800 circles.Turriform spring 5 gauges of wire are 0.7 millimeter.

Claims

1. easily detachable A.C. contactor of top auxiliary contact module, include main frame, described main frame includes base portion, the support of main frame contact part, be enclosed within counter-force turriform spring, yoke, armature in the support of main frame contact, be enclosed within coil and housing parts on the yoke, it is characterized in that: the number of turn of described coil: when coil voltage is 380 volts the number of turn of coil at 9000 circles in the scope of 11000 circles; When coil voltage is 220 volts the number of turn of coil at 5000 circles in the scope of 6500 circles; The steel wire diameter of described counter-force turriform spring is the 0.61-1 millimeter.