CN107971609A - A kind of no-load economizer for electric welding machine - Google Patents
A kind of no-load economizer for electric welding machine Download PDFInfo
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- CN107971609A CN107971609A CN201810041289.XA CN201810041289A CN107971609A CN 107971609 A CN107971609 A CN 107971609A CN 201810041289 A CN201810041289 A CN 201810041289A CN 107971609 A CN107971609 A CN 107971609A
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- 238000003466 welding Methods 0.000 title claims abstract description 87
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
- B23K9/105—Power supply characterised by the electric circuit by using discharge tubes or mechanical contactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
The present invention relates to a kind of no-load economizer for electric welding machine, the primary coil of the transformer of electric welding machine is connected with power supply terminal, the first controlling brancher and empty load energy-saving controlling brancher are also associated between two power supply terminals, empty load energy-saving controlling brancher includes the pull-in winding of second contactor, the normally-closed contact of second relay, the current detection module for detecting electric welding machine working status is additionally provided between the normally opened contact and empty load energy-saving controlling brancher of first contactor, current detection module is also associated with unloaded time delay module, unloaded time delay module is connected with energy-saving delay-action module by the normally opened contact of the second relay.The application can detect the size of electric welding machine operating current to judge the working status of electric welding machine by the mutual inductor of current detection module, delay chip in unloaded time delay module can be after electric welding machine enters light condition preset time so that the second relay power is attracted, so that electric welding machine enters empty load energy-saving pattern, it is energy saving electric welder no-load to be reliably achieved.
Description
Technical field
The present invention relates to electric welding machine energy-conserving control technology, especially a kind of no-load economizer for electric welding machine.
Background technology
Electric welding machine is a kind of larger intermittent work equipment of power consumption, and load alternately, is welded with zero load when unloaded
Machine still power consumption is very big, is the 10% ~ 20% of total electricity consumption according to the electricity consumed when calculating electric welder no-load, current existing electric welding
Machine energy saver species is various.Energy-saving apparatus for welding machine disclosed in the Chinese patent document of Application No. 200620024163.4,
By the series AC contactor on electric welder transformer coil, current transformer, bistable state triggering electricity are connect on electric weld handle set
Road achievees the purpose that to control electric welding machine to automatically power off in zero load, but its circuit structure is complicated, and component usage quantity is more, deposits
Manufacture cost big, high failure rate the problem of.Electricity-saving disclosed in the Chinese patent document of Application No. 200820118834.2
Welding machine, by setting button switch on electric weld handle, directly controls contactor action, so as to reach control welder power in real time
The purpose of break-make, have the characteristics that it is simple in structure, but there are it is inconvenient the problem of, in weld job, welder must press all the time
Firmly button switch looses one's grip and shuts down, moreover work as and replacing welding rod, connector processing, workpiece to keep contactor to be in working status
When needing short time Suspend Job, restarting electric welding machine repeatedly can cause the heavy current impact of electric welding machine to damage for position adjustment
Evil, start-up course energy consumption bigger.
The content of the invention
It is an object of the invention to provide a kind of no-load economizer for electric welding machine, for being reliably achieved electric welder no-load section
Energy.
To solve the above-mentioned problems, the present invention provides a kind of no-load economizer for electric welding machine, the transformer of electric welding machine just
Level coil be connected with power supply terminal, be also associated between two power supply terminals by first contactor pull-in winding, first
The first controlling brancher that the normally-closed contact of relay is formed, first controlling brancher are also parallel with empty load energy-saving controlling brancher,
The empty load energy-saving controlling brancher includes pull-in winding, the normally-closed contact of the second relay of second contactor, the unloaded section
Energy controlling brancher is connected in parallel on the both ends of first controlling brancher by two normally opened contacts of the first contactor；Described
The normally opened contact of the second contactor is also in series between the pull-in winding of two contactors and the electric welding machine, described second connects
The both ends of the normally opened contact of tentaculum are parallel with the first capacitance and dropping resistor；The normally opened contact of the first contactor and the sky
The current detection module for detecting the electric welding machine working status, the current detecting are additionally provided between load Energy Saving Control branch
Module includes the mutual inductor being set in the electric welding machine supply line；The current detection module is also associated with unloaded delay mould
Block, the zero load time delay module are included in delay chip and second relay, and second relay is in the electric welding machine
It is powered during in light condition；The zero load time delay module is connected with energy-saving delay-action by the normally opened contact of second relay
Module, the energy-saving delay-action module include delay chip and the first relay, and first relay is in the electric welding machine
Light condition is powered when exceeding the scheduled time, and the delay duration of the energy-saving delay-action module is more than prolonging for the unloaded time delay module
Shi Shichang.
No-load economizer for electric welding machine provided by the invention also has following technical characteristic：
Further, the both ends of first capacitance are also associated with Hall detection circuit, and the Hall detection circuit includes Hall
Sensor, the second diode, the second triode, the both ends phase of the primary coil of the Hall sensor and first capacitance
Even, the parallel connection of secondary windings of the Hall sensor is connected with resistance, and the secondary coil of the Hall sensor also passes through the 6th
Capacitance connection has the diode, is connected with second triode between the 6th capacitance and the diode, and described
The collector of two triodes is connected with the delay chip in the unloaded time delay module.
Further, the current detection module further includes the first diode being connected with the mutual inductor, the 5th capacitance
With the first triode, first diode is connected in parallel on the both ends of the mutual inductor after connecting with the 5th capacitance, and described
First triode, collector and the sky of first triode are connected between one diode and the 5th capacitance
The delay chip carried in time delay module is connected.
Further, the no-load economizer for electric welding machine further includes regulator rectifier circuit, the regulator rectifier circuit bag
The first transformer being connected with the power supply terminal is included, the secondary coil of first transformer is connected with bridge rectifier filtering mould
Block, the output terminal of the bridge rectifier filter module are connected with three terminal regulator, the output terminal of the three terminal regulator with it is described
Unloaded time delay module, the energy-saving delay-action module are connected to the unloaded time delay module, the energy-saving delay-action module for power supply.
The present invention has the advantages that：Electric welding machine operating current can detect by the mutual inductor of current detection module
To judge the working status of electric welding machine, the delay chip in unloaded time delay module can be preset size in electric welding machine into light condition
So that the second relay power is attracted after time, second to connect after the first relay power with the pull-in winding of second contactor
The normally-closed contact of relay disconnects, the pull-in winding dead electricity of second contactor, the second contactor in parallel with the first capacitance it is normal
Contact disconnection is opened, the first capacitance accesses the supply line of electric welding machine, is reduced by the input voltage of the first capacitance electric welding machine,
So that electric welding machine enters empty load energy-saving pattern；Delay chip in unloaded time delay module can avoid second contactor from frequently opening and closing,
The arc loss of contacts of contactor is reduced, the service life of contactor is improved, it is energy saving electric welder no-load to be reliably achieved.
Brief description of the drawings
Fig. 1 is the structure diagram of the no-load economizer for electric welding machine of the embodiment of the present invention.
Embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the present invention can be mutually combined.
In one embodiment of no-load economizer for electric welding machine of the invention as shown in Figure 1, the electric welder no-load is energy saving
The primary coil that device includes the transformer T4 of electric welding machine 10 is connected with power supply terminal L1, L2, two described power supply terminal L1, L2
Between be also associated with by the pull-in winding of first contactor KM1, the normally-closed contact J1-1 of the first relay J1 form first control
Branch 20 processed, first controlling brancher are also parallel with empty load energy-saving controlling brancher 30, and empty load energy-saving controlling brancher 30 includes the
The normally-closed contact J2-1 of the pull-in winding of two contactor KM2, the second relay J2, empty load energy-saving controlling brancher 30 connect by first
Two normally opened contacts KM1-1, KM1-2 of tentaculum KM1 are connected in parallel on the both ends of the first controlling brancher 20；The suction of second contactor KM2
The normally opened contact KM2-1 of second contactor KM2 is also in series between zygonema circle and electric welding machine 10, second contactor KM2's is normally opened
The both ends of contact KM2-1 are parallel with the first capacitance C1 and dropping resistor R9；Normally opened contact KM1-1, KM1- of first contactor KM1
The current detection module 40 for detecting 10 working status of electric welding machine, electric current are additionally provided between 2 and empty load energy-saving controlling brancher 30
Detection module 40 includes the mutual inductor T2 being set in 10 supply line of electric welding machine；Current detection module 40 is also associated with zero load and prolongs
When module 50, unloaded time delay module 50 is included in delay chip IC2 and the second relay J2, and the second relay J2 is in electric welding machine 10
It is powered during in light condition；Unloaded time delay module 50 is connected with section by normally opened contact J2-2, J2-3 of the second relay J2
Energy time delay module 60, energy-saving delay-action module 60 include delay chip IC1 and the first relay J1, and the first relay J1 is in electric welding machine
10 in light condition exceed the scheduled time when be powered, the delay duration of energy-saving delay-action module 60 is more than unloaded time delay module 50
Delay duration.No-load economizer for electric welding machine in the embodiment, electric welding machine is can detect by the mutual inductor of current detection module
To judge the working status of electric welding machine, the delay chip in unloaded time delay module can enter empty the size of operating current in electric welding machine
Load state preset time（Such as 5 to 15 seconds）Afterwards so that the second relay power is attracted, connect after the first relay power with second
The normally-closed contact of second relay of the pull-in winding series connection of tentaculum disconnects, the pull-in winding dead electricity of second contactor, with first
The normally opened contact of the second contactor of capacitance parallel connection disconnects, and the first capacitance accesses the supply line of electric welding machine, passes through the first capacitance
So that the input voltage of electric welding machine reduces so that electric welding machine enters empty load energy-saving pattern；Delay chip in unloaded time delay module
Second contactor can be avoided frequently to open and close, reduce the arc loss of contacts of contactor, improve the service life of contactor, can be reliably real
Existing electric welder no-load is energy saving.Specifically, the delay of scheduled duration can be carried out by the delay chip in unloaded time delay module, by
This is avoided welding worker second contactor frequent movement when replacing welding rod, checking welding quality when of short duration rest from being powered
State switches, and reduces the arc loss of contacts of contactor, improves the service life of contactor；Electricity is detected in current detection module
After welding machine is in light condition, detection signal is conveyed to the delay chip IC2 in unloaded time delay module by current detection module, is prolonged
When chip be delayed 3 to 20 seconds after export high potential give the second relay J2 pull-in winding, the second relay J2 be powered actuation, with
The normally-closed contact J2-1 of second relay J2 of the pull-in winding series connection of second contactor KM2 is disconnected, the suction of second contactor KM2
Coil losing electricity is closed, the normally opened contact KM2-1 of the second contactor KM2 in parallel with the first capacitance C1 is disconnected, the first capacitance C1 accesses
The supply line of electric welding machine, can be reduced the 380V power frequency high voltages electricity of two power supply terminal L1, L2 inputs by the first capacitance C1
Power to 80V or so and then for the transformer T4 of electric welding machine 10,80V power frequency electrics are reduced to 13V or so as electric welding by transformer T4
Machine is powered so that electric welding machine is in no-load saving resting state；Second relay J2 is powered after actuation, and the second relay J2's is normal
Open contact J2-2, J2-3 to close, the delay chip IC1 in energy-saving delay-action module 60 starts timing, when delay chip IC1 delays are pre-
After timing is long（Such as 1 minute to 2 it is small when, delay duration can be set according to specific needs）First relay J1 obtain it is electric, first after
The normally-closed contact J1-1 of electric appliance J1 is disconnected, the pull-in winding dead electricity of first contactor KM1, the normally opened contact of first contactor KM1
KM1-1, KM1-2 are disconnected, and whole no-load economizer for electric welding machine is stopped, and electric welding machine is in fully powered-off halted state, are led to
The delay duration that energy-saving delay-action mould delay chip in the block is set is crossed, can be caused after electric welding machine is in light condition scheduled duration
Electric welding machine is fully powered-off, thus avoids welder from terminating in welding, or After Hours forgets that closing general supply causes electric welding machine one
Directly electric energy is wasted in light condition.
In the above-described embodiments, which also has following technical characteristic：Preferably, the first capacitance
The both ends of C1 are also associated with Hall detection circuit 70, and Hall detection circuit 70 includes Hall sensor T3, the second diode D2, the
Two triode Q2, the primary coil of Hall sensor T3 are connected with the both ends of the first capacitance C1, the secondary wire of Hall sensor T3
Circle is connected in parallel to resistance XR2, and the secondary coil of Hall sensor T3 is also connected with diode D2 by the 6th capacitance C6, and the 6th
It is connected between capacitance C6 and diode D2 in the collector and unloaded time delay module 50 of the second triode Q2, the second triode Q2
Delay chip IC2 be connected；By setting Hall detection circuit, when second contactor KM2 dead electricity electric welding machine is in no-load saving
During resting state, if electric welding machine restarting welding, the moment that welding rod is contacted with workpiece, is perceived by Hall sensor T3 and is welded
Delay chip IC2 after from the curent change of machine supply line to unloaded time delay module sends reverse signal, unloaded time delay module
In delay chip IC2 receive and export low level the second relay of dead electricity J2 after the reverse signal that Hall sensor T3 is sent and lose
Electricity, the normally-closed contact J2-1 closures of the second relay J2, the pull-in winding of second contactor KM2 obtain it is electric, second contactor KM2's
Normally opened contact KM2-1 is closed, and the first capacitance C1 is shorted, and the 380V power frequency high voltages electricity of sub- L1, L2 input of two power supply terminals is straight
The both ends of the primary coil for the transformer T4 for acting on electric welding machine 10 are connect, electric welding machine recovers 380V load voltage value normal operations,
Thus electric welding machine can be returned into normal operating conditions in time, ensures normal welding demand.
In the above embodiment, it is preferable that the current detection module 40 further includes the one or two to be connected with mutual inductor T2
Pole pipe D1, the 5th capacitance C5 and the first triode Q1, the first diode D1 are connected in parallel on mutual inductor T2 after connecting with the 5th capacitance C5
Both ends, be connected with the first triode Q1 between the first diode D1 and the 5th capacitance C5, the collector of the first triode Q1 with
Delay chip IC2 in unloaded time delay module 50 is connected, the curent change thus, it is possible to reliably gather electric welding machine supply line,
Delay chip when electric welding machine is in light condition in time into unloaded time delay module sends detection signal.
In the above embodiment, it is preferable that the no-load economizer for electric welding machine further includes regulator rectifier circuit 80, rectification
Regulator circuit 80 includes the first transformer T1 being connected with power supply terminal L1, L2, and the secondary coil of the first transformer T1 is connected with
Bridge rectifier filter module, the output terminal of the bridge rectifier filter module are connected with three terminal regulator IM7812, three-terminal voltage-stabilizing
The output terminal of device IM7812 is connected to unloaded time delay module 50, energy-saving delay-action with unloaded time delay module 50, energy-saving delay-action module 60
Module 60 is powered, and ensures unloaded time delay module, the normal work of energy-saving delay-action module so that the no-load economizer for electric welding machine is transported
Row is reliable.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (4)
1. a kind of no-load economizer for electric welding machine, the primary coil of the transformer of electric welding machine is connected with power supply terminal, its feature exists
In being also associated with pull-in winding, the normally-closed contact structure of the first relay by first contactor between two power supply terminals
Into the first controlling brancher, first controlling brancher is also parallel with empty load energy-saving controlling brancher, the empty load energy-saving control branch
Road includes pull-in winding, the normally-closed contact of the second relay of second contactor, and the empty load energy-saving controlling brancher passes through described
Two normally opened contacts of first contactor are connected in parallel on the both ends of first controlling brancher；The pull-in winding of the second contactor
Also it is in series with the normally opened contact of the second contactor between the electric welding machine, the two of the normally opened contact of the second contactor
End is parallel with the first capacitance and dropping resistor；Between the normally opened contact of the first contactor and the empty load energy-saving controlling brancher
The current detection module for detecting the electric welding machine working status is additionally provided with, the current detection module includes being set in described
Mutual inductor in electric welding machine supply line；The current detection module is also associated with unloaded time delay module, the unloaded delay mould
Block is included in delay chip and second relay, and second relay leads to when the electric welding machine is in light condition
Electricity；The zero load time delay module is connected with energy-saving delay-action module by the normally opened contact of second relay, described energy saving to prolong
When module include delay chip and the first relay, first relay the electric welding machine be in light condition exceed it is predetermined
It is powered during the time, the delay duration of the energy-saving delay-action module is more than the delay duration of the unloaded time delay module.
2. no-load economizer for electric welding machine according to claim 1, it is characterised in that：The both ends of first capacitance also connect
Be connected to Hall detection circuit, the Hall detection circuit includes Hall sensor, the second diode, the second triode, it is described suddenly
You are connected at the primary coil of sensor with the both ends of first capacitance, and the parallel connection of secondary windings of the Hall sensor is connected with
Resistance, the secondary coil of the Hall sensor also have the diode, the 6th capacitance and institute by the 6th capacitance connection
State and second triode be connected between diode, the collector of second triode with the unloaded time delay module
Delay chip is connected.
3. no-load economizer for electric welding machine according to claim 2, it is characterised in that：The current detection module further includes
The first diode, the 5th capacitance and the first triode being connected with the mutual inductor, first diode and the described 5th electricity
Hold the both ends that the mutual inductor is connected in parallel on after connecting, described first is connected between first diode and the 5th capacitance
Triode, the collector of first triode are connected with the delay chip in the unloaded time delay module.
4. no-load economizer for electric welding machine according to claim 1, it is characterised in that：The no-load economizer for electric welding machine
Further including regulator rectifier circuit, the regulator rectifier circuit includes the first transformer being connected with the power supply terminal, and described the
The secondary coil of one transformer is connected with bridge rectifier filter module, and the output terminal of the bridge rectifier filter module is connected with three
Voltage-stablizer is held, the output terminal of the three terminal regulator is connected to described with the unloaded time delay module, the energy-saving delay-action module
Unloaded time delay module, the energy-saving delay-action module for power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041289.XA CN107971609B (en) | 2018-01-16 | 2018-01-16 | No-load energy-saving device of electric welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041289.XA CN107971609B (en) | 2018-01-16 | 2018-01-16 | No-load energy-saving device of electric welding machine |
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| Publication Number | Publication Date |
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| CN107971609A true CN107971609A (en) | 2018-05-01 |
| CN107971609B CN107971609B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810041289.XA Active CN107971609B (en) | 2018-01-16 | 2018-01-16 | No-load energy-saving device of electric welding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247317A (en) * | 2020-09-16 | 2021-01-22 | 中车西安车辆有限公司 | Secondary side electric shock protection device, multi-station direct current welding machine and control method thereof |
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| CN107971609B (en) | 2024-03-08 |
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