CN2159280Y

CN2159280Y - Automatic energy saver of AC arc welder

Info

Publication number: CN2159280Y
Application number: CN 93231012
Authority: CN
Inventors: 肖振霞
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-26
Filing date: 1993-05-26
Publication date: 1994-03-23
Anticipated expiration: 2003-05-26

Abstract

The utility model relates to an automatic energy saver of an AC arc welder, which belongs to an energy saving device of the AC arc welder. The utility model is composed of a capacitor C which is connected in parallel with the primary coil W < 1 > of the arc welder, an AC contactor whose normally open contact CJ< 1-1 > is externally connected in series with the secondary coil W< 2 > of the AC arc welder to control the primary winding W< 3 > arc welder handle of a control transformer BK and an AC contactor CJ < 1 > which is connected in parallel with the secondary winding W< 4 > of the control transformer BK. The utility model has the advantages of simple structure, convenient operation and favorable power saving effect.

Description

Automatic energy saver of AC arc welder

The utility model belongs to the ac arc wedling machine energy saver.

Development of economic construction is all used arc-welding machine operation processing in many occasions, and is especially particularly commonly used in shipbuilding industry, the pipeline operations.And existing arc-welding machine operating efficiency is lower, loses morely, and about 50%, the efficient of the small-sized arc-welding machine of BX series that recoverable amount is bigger in the society has only 45% usually according to the efficient of the general electric welding machine of interrelated data introduction, and therefore a large amount of electric energy are all wasted.On the other hand, the increase of the surge of commercial power, household electrical appliance makes the demand that the supply of electricity is not satisfied to be increased far away.

The purpose of this utility model provides a kind of energy saver for the ac arc wedling machine use.

The energy-conservation instrument operation principle of ac arc wedling machine:

Behind power turn-on switch k, electric current is through fuse RD, the elementary winding W of arc-welding machine B ₁, form the work loop through fuse RD and k again, at this moment arc-welding machine B starts working.

When the welding rod of arc-welding machine contacted weldment, welding machine began on load operation work.Arc-welding machine secondary windings W ₂Welding current, the elementary winding W of the Bk transformer of flowing through ₂, workpiece is welded, simultaneously at Bk Transformer Winding W ₄Induce a kind of voltage, the sucking coil CJ of input AC contactor ₁, A.C. contactor CJ _1-1Normally opened contact is connected in parallel on power capacitor C on the input circuit of arc-welding machine by adhesive, makes capacitor begin the work (through test, after electric capacity inserted, the welding machine input current dropped to 19A from 39A) of phase-shift energy-saving.

Arc-welding work one stops, winding W ₂Disconnect, make Bk Transformer Winding W ₂Electric current equal zero W ₄Thereby non-inductive voltage output, A.C. contactor quits work.CJ _2-1Contact is decontroled return, and power capacitor quits work because of the input circuit that breaks away from arc-welding machine B.When welding job begins again, winding W ₂Again there is electric current to flow through, the winding W of BK transformer ₃Sucking coil CJ with A.C. contactor ₁Normally opened contact CJ with contactor _1-1Again cooperating, capacitor are parallel to again on the input circuit of electric welding machine B and carry out phase-shift energy-saving, go round and begin again like this.Through test, welding machine operates steadily, and electric capacity is followed the tracks of in time, and energy-saving effect is obvious.

A kind of ac arc wedling machine automatic energy saving instrument is characterized in that entering the primary coil W of arc-welding machine B ₁Preceding tandem tap K, the normally opened contact CJ of fuse RD A.C. contactor in parallel _1-1And capacitor C, at the secondary coil W of arc-welding machine ₂The elementary winding W of outer series controlled transformer BK ₃, the arc-welding handle is at the secondary windings W of control transformer BK ₄Go up A.C. contactor CJ in parallel ₁, another termination weldment of secondary windings.

That advantage of the present utility model is is simple in structure, power savings is remarkable, is example with a Bx welding machine, uses the welding rod of φ 32, input current 39A during work reduces to 19A after using energy-conservation instrument, and 8 degree per hour economize on electricity, per tour economize on electricity 64 degree, year, month amount of electricity saving is just very considerable.

Accompanying drawing is the schematic circuit of ac arc wedling machine automatic energy saving instrument, K-switch wherein, RD-fuse, CJ-A.C. contactor, C-electric capacity, CJ _1-1-A.C. contactor normally opened contact, the BK-control transformer.

Claims

A kind of ac arc wedling machine automatic energy saving instrument is characterized in that entering the primary coil W of arc-welding machine B ₁Preceding tandem tap K, the normally opened contact CJ of fuse RD A.C. contactor in parallel _1-1And capacitor C, at the secondary coil W of arc-welding machine ₂The elementary winding W of outer series controlled transformer BK ₃, the arc-welding handle is at the secondary winding transformer W of control transformer BK ₄Go up A.C. contactor CJ in parallel ₁, another termination weldment of secondary windings.