CN2764544Y

CN2764544Y - Energy saving apparatus for AC or silicon rectifier DC electric welding machine

Info

Publication number: CN2764544Y
Application number: CN 200520100618
Authority: CN
Inventors: 汪春夏
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-05
Filing date: 2005-02-05
Publication date: 2006-03-15
Anticipated expiration: 2015-02-05

Abstract

The utility model relates to an energy saving apparatus for AC or silicon rectifier DC electric welding machines, which is composed of a contactor, a control transformer and an inching self-resetting switch, the two contact points of the contactor are arranged in a major loop of the electric welding machine in series; the input contact point of the control transformer is arranged on the power supply side of an inlet wire of the contactor; the output contact point of the secondary side of the control transformer is connected with one end of the attracting coil of the contactor; the inching self-resetting switch is arranged between the other end of the attracting coil and the other end of the output contact point of the secondary side of the control transformer in series; the inching self-resetting switch is fixed on a welding holder of the welding machine. On the occasion of concrete application, the outlet side of the control transformer is provided with a one-way electric leaking protector. The utility model has the advantages that the energy saving apparatus is used for the AC or the silicon rectifier DC electric welding machine, and then, in the clearance of a welder operating, when the welding machine is in a stand-by state, no-load exciting current of the welding machine can be cut off by the energy saving apparatus, and consequently, the purpose of energy saving is achieved.

Description

The energy saver that a kind of interchange or silicon rectifier dc welding machine are used

Technical field

The utility model relates to a kind of the interchange or energy saver that the silicon rectifier dc welding machine is used, especially belongs to the energy saver that the electric welding machine of power supply is provided by a kind of system.

Background technology

Usually, the welder uses and exchanges or mode that silicon rectifier direct-current electric welding machine operation adopts is the clearance-type operation, that is: electric welding field intersects with unloaded standby and carries out, and is not related to power supply midway.Therefore,,, there is the energy loss phenomenon under the open-circuit excitation state, is unfavorable for using electricity wisely even also have power consumption at unloaded holding state with regard to present electric welding machine structure.

Summary of the invention

For overcoming the above-mentioned defective that prior art exists, the energy saver that the utility model provides a kind of interchange or silicon rectifier dc welding machine to use, after using this energy saver, the welder at operation gap when welding machine is in unloaded holding state, energy saver can cut off the open-circuit excitation electric current of welding machine, thereby reaches energy-saving and cost-reducing purpose.

The energy saver that a kind of interchange or silicon rectifier dc welding machine are used, its structure is made up of a contactor, a control transformer and a fine motion self-resetting switch; Two contacts of contactor are connected in the major loop of electric welding machine, the input contact of control transformer is connected in parallel on the incoming power side of contactor, a secondary side output contact of control transformer links to each other with pull-in winding one end of contactor, be connected in series the fine motion self-resetting switch between the other end of the other end of pull-in winding and control transformer secondary side output contact, the fine motion self-resetting switch is fixed on the electrode holder of welding machine.

During concrete enforcement, a unidirectional electric leakage protector is housed at the outlet side of control transformer.

Beneficial effect: the utility model with existing exchange or silicon rectifier dc welding machine adapted after, because the fine motion self-resetting switch is installed on the electrode holder of welding machine, the gap operation that utilizes the welder is the action of hand from electrode holder, reaches the folding of automatic control fine motion self-resetting switch.When the fine motion self-resetting switch was closed, welding machine was in running order, and the fine motion self-resetting switch is opened when hand leaves electrode holder, and at this moment, the contactor coil dead electricity disconnects major loop, cuts off the open-circuit excitation electric current, thereby has avoided no-load power consumption.

Description of drawings

Fig. 1 is the structural representation of electrode holder, mainly shows the fine motion self-resetting switch among the figure and is installed in illustrated position on the electrode holder.

Fig. 2 is circuit theory diagrams of the present utility model.

The specific embodiment

Below in conjunction with Fig. 1-2, the utility model is described in further detail by embodiment.

Sequence number is represented respectively among the figure: 1 electrode holder, 2 fine motion self-resetting switch, 3 contactor coil pilots, 4 welding machine welding cable lines, 5 curved handles, A welding machine, B workpiece, C contactor, D electric leakage protector, E electrode holder, K switch, Kb control transformer.

The energy saver that this interchange or silicon rectifier dc welding machine are used (so long as system or network provide the electric welding machine of power supply all can use).Its structure is made up of a contactor C (its big I is according to the electric welding machine capacity configuration, and for example the BX-300 welding machine is joined 40 amperes of contactors and got final product), a control transformer Kb (as long as the transformer of 36 volt-amperes of full voltages can be provided) and a fine motion self-resetting switch 2.Contactor C generally has three main contacts, can choose two contacts during installation wantonly, and these two contacts are connected in the major loop of electric welding machine.The input contact of control transformer Kb is connected in parallel on the inlet wire 380V/220V mains side of contactor, the secondary side output contact of control transformer Kb links to each other with pull-in winding one end of contactor, be connected in series fine motion self-resetting switch 2 between the other end of the other end of pull-in winding and control transformer secondary side output contact, the fine motion self-resetting switch is fixed on the electrode holder of welding machine.

In order to prevent control transformer under abnormal conditions, high pressure seals in secondary control loop, can load onto a unidirectional electric leakage protector at the outlet side of control transformer, guarantees safety.

This energy-conservation device is the most suitable to be exchanged or the silicon rectifier dc welding machine forms supporting with having now, assembling combines dispatches from the factory, also can utilize simultaneously this device that the electric welding machine that is using is at present carried out energy-conservation technological transformation and reach energy-saving and cost-reducing purpose, its improvement cost is about 100-200 unit.

Claims

1, a kind of interchange or energy saver that the silicon rectifier dc welding machine is used, it is characterized in that: it is made up of a contactor (C), a control transformer (Kb) and a fine motion self-resetting switch (2); Two contacts of contactor (C) are connected in the major loop of electric welding machine, the input contact of control transformer (Kb) is connected in parallel on the incoming power side of contactor, a secondary side output contact of control transformer (Kb) links to each other with pull-in winding one end of contactor, be connected in series the fine motion self-resetting switch between the other end of the other end of pull-in winding and control transformer secondary side output contact, fine motion self-resetting switch (2) is fixed on the electrode holder of welding machine.

2, a kind of interchange or energy saver that the silicon rectifier dc welding machine is used as claimed in claim 1, it is characterized in that: the outlet side at control transformer (Kb) is equipped with a unidirectional electric leakage protector (D).