CN200988126Y - Automatic power saver for electric welder no-load - Google Patents

Abstract

The utility model discloses a no-load automatic electricity economizer for an electric welding machine, which is mainly used in an electricity saving device when the electric welding machine is operating with no load. A shell of the device is provided with an emergency switch, an indicator light, and is connected with a power supply binding post and a welding machine binding post. The circuit of the utility model is composed of power elements such as a contactor, a capacitance, a exciting coil, a silicon controlled rectifier, a time relay, the emergency switch, the indicator light, an electric welding machine coil in connection with a 380 voltage ac A, B phase. During the operation of the electric welding machine, automatic power on when starting, automatic power off when no load of the welding part are realized, the problem that the no load operation of the prior welding machine wastes power is solved, no load current is saved by 95%-98%. The utility model adopts the inductance technology. Compared with the prior technology, the utility model has a simple structure, lower cost, a lower failure rate, a small volume, which is practical and reliable.

Description

The electric welder no-load automatic electricity saver

Technical field the utility model relates to a kind of electric welder no-load automatic electricity saver, the battery saving arrangement when being mainly used in no-load running in the electric welding machine work.

Background technology is present, employed electric welding machine, after work begins energising, be all to be in "on" position in welding or zero load, because it has the discontinuity work characteristics, the actual welding time is limited, and the most of the time consumes on various factors such as the adjustment location of workpiece, the correction of getting the raw materials ready, and often is in the no-load running state.As estimating by 8 hour work hours that the practical operation time was 5～6 hours, accumulative total no-load running reaches 2～3 hours unexpectedly, can not cut off the power supply automatically during owing to no-load running, will waste a large amount of electric power like this.It is reported, have at electric welder no-load and come out by the battery saving arrangement that cuts off the power supply automatically, a kind of is employing sensing chip technology, and another kind is a production of integrated circuits, though both have effect preferably to zero load economize on electricity, exist price height, complex structure, the deficiency that influence uses that is out of order easily.

Utility model content the purpose of this utility model is exactly for solving above-mentioned deficiency, for people provide a kind of electric welder no-load automatic electricity saver with the inductance art designs, and automatic on-off when it can make welding machine weld beginning or zero load at work.

The purpose of this utility model is to realize by following technical measures:

Partly form by housing, power-line terminal, welding machine binding post and electrical part.Emergency button, indicator lamp are housed on the shell surface of housing, connect A, B phase power-line terminal and welder binding post.

Electric component comprises emergency button, indicator lamp, link to each other with power-line terminal, welding machine binding post, its circuit is direct mutually welder primary coil 1 end of power supply B, the power supply A contactor end of incoming cables that joins, welding machine primary coil 2 termination contactor leading-out terminals, capacitor series contactor turnover line end, welding machine secondary coil 1 end passes from the excitation coil center, welding machine secondary coil 2 termination workpiece.

The I end of excitation coil connects power supply A phase through emergency button, and the II end connects the SCR control utmost point through time relay break contact and delay circuit, and negative electrode connects power supply A phase, and anode connects power supply B phase through time relay pull-in winding.

Contactor pull-in winding 1 termination power A phase, 2 ends connect power supply B phase through time relay moving together contact, emergency button be series at contactor pull-in winding 2 ends and power supply B mutually in.

Indicator lamp one termination power A phase, the other end connects power supply B phase through the attached adjuvant grafting point of contactor.

Advantage of the present utility model, owing to adopt the inductance art designs, comprise by inductance, triggering, time-delay, relay and ac control circuit and forming, compare with domestic prior art, simple structure, reasonable in design, cost is low, fault rate is low, volume is small and exquisite, practicality is reliable; Welding machine is switched on during the welding beginning at work automatically, and outage automatically can be saved no-load current 95%～98% in unloaded 15～30 seconds,

Description of drawings elaborates to the utility model embodiment below with reference to accompanying drawing:

Fig. 1 is that the utility model outward appearance master looks schematic diagram.

Fig. 2 is the utility model electrical part part connecting circuit figure.

The specific embodiment is shown by Fig. 1,2: the utility model partly is made up of housing (1), power-line terminal (5), welding machine binding post (4) and electrical part.Shell one end face at housing (1) is equipped with emergency button (2), indicator lamp (3), emergency button (2) is can do emergency power when automatic circuit is out of order, the other end is equipped with and is connect 380V voltage A, B phase power-line terminal (5), with the welding machine binding post (4) that is connected electric welding machine.

Electric component comprises emergency button (2), indicator lamp (3), be connected by electric device with power-line terminal (5), welding machine binding post (4) and form that electric welding machine is disconnected automatically, the energising power save circuit, this circuit is by direct mutually welder (6) primary coil 1 end of 380V alternating-current power supply B, the power supply A contactor JT end of incoming cables that joins, welding machine (6) primary coil 2 termination contactor JT leading-out terminals, capacitor C series contactor JT passes in and out line end, welding machine (6) secondary coil 1

End passes from excitation coil L center, welding machine (6) secondary coil 2 termination workpiece.

The I end of excitation coil L connects power supply A phase through emergency button K, and II holds through time relay JS ₇Break contact and delay circuit connect the controllable silicon 3CJ control utmost point, and negative electrode connects power supply A phase, and anode is through time relay JS ₇Pull-in winding connects power supply B phase.

Contactor JT pull-in winding 1 termination power A phase, 2 ends are through time relay JS ₇Moving together contact connects power supply B phase, emergency button K be series at contactor JT pull-in winding 2 ends and power supply B mutually in.

Indicator lamp (3) one termination power A phases, the other end connects power supply B phase through the attached adjuvant grafting point of contactor JT.

Principle of the present utility model, after sending into 380 volts of A, B phase power supply, through capacitor C series connection welding machine (6) primary coil, secondary coil will produce the induced voltage that exchanges 10-15V, welding machine (6) secondary coil 1 end sealing wire will pass from excitation coil L center, and excitation coil L produces the 20-30mmA weak current during welding rod contact workpiece, trigger controllable silicon 3CJ action, negative electrode, anode conducting, time relay JS ₇Action, and make main contactor JT adhesive, welding machine (6) primary coil is served power supply, normal running.At this moment, time relay JS ₇Break contact is with controllable silicon 3CJ, time relay JS ₇The pull-in winding outage, after 15～30 seconds, time-delay contact is closed again, and controllable silicon 3CJ conducting once more makes to be unlikely to the current interruption of cutting off the power supply in the welding.

Claims (2)

1, a kind of electric welder no-load automatic electricity saver partly is made up of housing (1), power-line terminal (5), welding machine binding post (4) and electrical part, it is characterized in that:

A, on the shell surface of housing (1), adorn emergency button (2), indicator lamp (3), connect A, B phase power-line terminal (5) and welder binding post (4),

B, electric component comprise emergency button (2), indicator lamp (3), link to each other with power-line terminal (5), welding machine binding post (4), its circuit is direct mutually welder (6) primary coil 1 end of power supply B, the power supply A contactor JT end of incoming cables that joins, welding machine (6) primary coil 2 termination contactor JT leading-out terminals, capacitor C series contactor JT passes in and out line end, and welding machine (6) secondary coil 1 end passes from excitation coil L center, welding machine (6) secondary coil 2 termination workpiece

The I end of excitation coil L connects power supply A phase through emergency button K, and II holds through time relay JS ₇Break contact and delay circuit connect the controllable silicon 3CJ control utmost point, and negative electrode connects power supply A phase, and anode is through time relay JS ₇Pull-in winding connects power supply B phase,

Contactor JT pull-in winding 1 termination power A phase, 2 ends are through time relay JS ₇Moving together contact connects power supply B phase, emergency button K be series at contactor JT pull-in winding 2 ends and power supply B mutually in,

Indicator lamp (3) one termination power A phases, the other end connects power supply B phase through the attached adjuvant grafting point of contactor JT.

2, electric welder no-load automatic electricity saver according to claim 1 is characterized in that at housing (1) shell surface one end face emergency button (2), indicator lamp (3) being housed, and power-line terminal (5), welding machine binding post (4) are equipped with in the other end.

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