CN108115250B - A kind of Multifunctional welding drive circuit - Google Patents
A kind of Multifunctional welding drive circuit Download PDFInfo
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- CN108115250B CN108115250B CN201711371760.3A CN201711371760A CN108115250B CN 108115250 B CN108115250 B CN 108115250B CN 201711371760 A CN201711371760 A CN 201711371760A CN 108115250 B CN108115250 B CN 108115250B
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- 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
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- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
The present invention relates to it is a kind of can be applied to welding electrode arc welding, argon tungsten-arc welding, plasma cut Multifunctional welding drive circuit.The invention discloses a kind of Multifunctional welding drive circuit, transformer T4 is set in the driving circuit, transformer T4 includes at least one armature winding and at least two secondary windings；Armature winding is connected with input is exchanged, the output of first secondary windings exports DC voltage through full-bridge rectification output module, the output of second subprime winding exports DC voltage through full-wave rectification output module, wherein, center tap terminal is arranged in second subprime winding, the center tap terminal is connected with the output negative terminal of the output negative terminal of full-bridge rectification output module and full-wave rectification output module, the output plus terminal of full-bridge rectification output module is as the first output plus terminal, and the output plus terminal of full-wave rectification output module is as the second output plus terminal.The present invention effectively raises the performance of Multi-functional arc welding generator in the case where not increasing cost, while reducing the failure rate of machine.
Description
Technical field
The present invention relates to electric welding machine circuit more particularly to one kind can be applied to welding electrode arc welding, argon tungsten-arc welding, etc. from
The Multifunctional welding drive circuit of son cutting.
Background technique
In the prior art, electric welding machine is in the process of the metal materials such as steel, not according to material properties and technique
Together, it will usually use the welding machine mode of multiple functions, while be also required to cut metal in some occasions, cut out.Cause
This, the electric welding machine with a variety of welding functions and cutting function becomes the first choice of many users.Currently, Multi-functional arc welding generator
What is used is mostly the multiplication of voltage and reduction voltage circuit of relay conversion, and it is same to be easy to appear output voltage imbalance in actual use
When relay contact the problems such as being burnt during frequent transitions, so as to cause welding effect difference machine-spoiled rate height etc. simultaneously
Bad phenomenon.
Fig. 1 is the driving circuit of traditional multifunctional welding machine, switches various working conditions by relay.In argon arc welding and hand
When work welds working condition, relay J1B/J1C/J1D/J2B/J2C/J2D is connected to the respective end a, at this time transformer
Grade output carries out full-wave rectification by respective rectifying tube, then in parallel, to obtain low output voltage simultaneously while can be defeated
Big output electric current out, is suitable for the welding function of argon arc welding and manual welding；In cutting machine working condition, relay J1B/
J1C/J1D/J2B/J2C/J2D is connected to the respective end b, and transformer secondary output output at this time is carried out by respective rectifying tube
Then full-wave rectification is connected, to be done output voltage and to export small output electric current connection simultaneously, be suitable for plasma and cut
Cut function.During realizing three kinds of functions, several windings of transformer output will be carried out in parallel or in series, but each
The voltage of winding reality output can not be identical, therefore leads to the voltage electricity of each winding output in practical work process
Stream is uneven and influences the effect of welding and cutting, simultaneously as function does not need to realize by the conversion of relay simultaneously, from
And the failure rate for increasing machine reduces the stability of machine.
Therefore for drawbacks described above present in currently available technology, it is really necessary to be studied, to provide a kind of scheme,
Solve defect existing in the prior art.
Summary of the invention
In view of this, not increasing circuit complexity and cost it is necessory to provide a kind of Multifunctional welding drive circuit
In the case where, the demand of welding or cutting can be reached simultaneously, the performance of Multi-functional arc welding generator is effectively raised, drop simultaneously
The low failure rate of machine.
In order to solve technical problem of the existing technology, technical scheme is as follows:
A kind of Multifunctional welding drive circuit, transformer T4 is arranged in the driving circuit, and the transformer T4 includes at least
One armature winding and at least two secondary windings；The armature winding is connected with input is exchanged, and the first secondary windings is defeated
DC voltage is exported through full-bridge rectification output module out, the output of second subprime winding exports direct current through full-wave rectification output module
Pressure, wherein center tap terminal is arranged in the second subprime winding, and the center tap terminal is defeated with the full-bridge rectification output module
Negative terminal is connected with the output negative terminal of the full-wave rectification output module out, and the output plus terminal of the full-bridge rectification output module is made
For the first output plus terminal, the output plus terminal of the full-wave rectification output module is as the second output plus terminal.
The full-wave rectification output module includes diode D10, diode D19, capacitor as a preferred technical solution,
C45 and current divider, the anode of the diode D10 are connected with the 6th pin of the second subprime winding, the diode
The anode of D19 is connected with the 8th pin of the second subprime winding, the negative terminal and the diode of the diode D10
The negative terminal of D19 is connected as the second output plus terminal, the other end of the capacitor C45 and shunting with one end of the capacitor C45
One end of device is connected as the first output negative terminal, the 7th pin of the other end of the current divider and the second subprime winding
And the output negative terminal of the full-wave rectification output module is connected, wherein during the 7th pin of the second subprime winding is
Heart tap terminals.
The full-wave rectification output module further includes capacitor C46 and variable resistance VR1 as a preferred technical solution,.
The full-bridge rectification output module uses bridge rectifier chip as a preferred technical solution,.
The full-bridge rectification output module includes diode D11, diode D20, diode as a preferred technical solution,
D18 and diode D21.
As a preferred technical solution, the full-bridge rectification output module further include inductance L1, capacitor C47, capacitor C48,
Capacitor C49, capacitor C50 and variable resistance VR2, wherein the negative terminal of one end of the inductance L1 and diode D20, diode D21
It is connected, the other end of the inductance L1 and one end of capacitor C47, one end of capacitor C48, one end of capacitor C49, variable resistance
One end of VR2 is connected as the first output plus terminal；The other end, the variable resistance of the other end of the capacitor C47, capacitor C48
The other end of VR2 is connected with the first output negative terminal jointly；The other end of the capacitor C49, capacitor C50 one end jointly and greatly
Ground terminal is connected, and the other end of the capacitor C50 is connected with the second output plus terminal.
It is negative as the second output that a quick socket is drawn in the first output negative terminal as a preferred technical solution,
End.
First secondary windings is different with the number of turns of second subprime winding as a preferred technical solution,.
The output voltage of first secondary windings is greater than the defeated of the second subprime winding as a preferred technical solution,
Voltage out.
The number of turns between the armature winding, the first secondary windings and second subprime winding as a preferred technical solution,
Than for 10:16:4.
Compared with prior art, technical solution of the present invention saves material cost, has simple, Yi Shixian, and effect is good
The characteristics of；The performance of Multi-functional arc welding generator is effectively raised in the case where not increasing cost, while reducing the event of machine
Barrier rate.
Detailed description of the invention
Fig. 1 is the circuit diagram of prior art multifunctional welding machine.
Fig. 2 is the circuit diagram of Multifunctional welding drive circuit of the present invention.
Following specific embodiment will further illustrate the present invention in conjunction with above-mentioned attached drawing.
Specific embodiment
Graphene composite powder material provided by the invention and preparation method thereof is made furtherly below with reference to attached drawing
It is bright.
Referring to fig. 2, it is shown the circuit diagram of Multifunctional welding drive circuit of the present invention, is arranged in the driving circuit and becomes
Depressor T4, transformer T4 include at least one armature winding and at least two secondary windings；Armature winding with exchange input phase
Connection, the output of the first secondary windings export DC voltage through full-bridge rectification output module, and the output of second subprime winding is whole through all-wave
It flows output module and exports DC voltage, wherein center tap terminal, the center tap terminal and full-bridge rectification is arranged in second subprime winding
The output negative terminal of output module is connected with the output negative terminal of full-wave rectification output module, and the output of full-bridge rectification output module is just
End is used as the first output plus terminal, and the output plus terminal of full-wave rectification output module is as the second output plus terminal.Further, all-wave is whole
Stream output module includes diode D10, diode D19, capacitor C45 and current divider, the anode and second subprime of diode D10 around
6th pin of group is connected, and the anode of diode D19 is connected with the 8th pin of second subprime winding, diode D10's
Negative terminal is connected as the second output plus terminal with one end of the negative terminal of diode D19 and capacitor C45, the other end of capacitor C45 with
One end of current divider is connected as the first output negative terminal, the other end of current divider and the 7th pin of second subprime winding and
The output negative terminal of full-wave rectification output module is connected, wherein the 7th pin of second subprime winding is center tap terminals.Full-bridge
Rectifying output module includes diode D11, diode D20, diode D18 and diode D21.
Further, full-bridge rectification output module further includes inductance L1, capacitor C47, capacitor C48, capacitor C49, capacitor C50
With variable resistance VR2, wherein one end of inductance L1 is connected with the negative terminal of diode D20, diode D21, and inductance L1's is another
End is connected with one end of one end of capacitor C47, one end of capacitor C48, one end of capacitor C49, variable resistance VR2 as first
Output plus terminal；The other end of capacitor C47, the other end of capacitor C48, the other end of variable resistance VR2 are jointly negative with the first output
End is connected；The other end of capacitor C49, one end of capacitor C50 are connected with big ground terminal jointly, the other end of capacitor C50 and
Two output plus terminals are connected.Meanwhile a quick socket is drawn as the second output negative terminal in the first output negative terminal.
In Fig. 2, three windings, one of armature winding and two secondary windings are designed on main transformer.Two times
Different the number of turns is arranged in grade winding, to meet the use demand of different welding procedures.Wherein, 3 feet of transformer and 5 feet export
Secondary voltage carries out full-bridge rectification by tetra- diodes of D11/D18/D20/D21, obtains higher DC output voltage, is suitble to
In plasma cut function；In addition, by the voltage of 6 foot of transformer, 7 foot, 8 foot output and carrying out full-wave rectification by D10/D19, obtain
To lower DC output voltage, it is suitable for argon arc welding and manual welding function；The negative terminal of two direct current outputs is connected simultaneously, shape
At the common end that welding gun connects, because argon tungsten-arc welding and plasma cut require gas and solder cutting gun, thus entire machine
The same gun joint can be only used in welding and cutting, simplify the operation difficulty of welder.Then rectified current is drawn respectively again
Ground wire connecting pin of the anode on road as welding and cutting.Negative terminal is exported simultaneously draws a quick socket as welding electrode arc welding
The connecting pin of electrode holders.The present invention merges one by a kind of cleverly circuit structure, by full-bridge rectification and full-wave rectification, shunts
Device meets different application as common current limiting element, by secondary windings and multiple output interfaces that different turn ratios are arranged
Demand, therefore, present invention driver circuit can satisfy three kinds of welding electrode arc welding, argon tungsten-arc welding and plasma cut functions
Use.The present invention does not use extra additional device, saves material cost, has simple, Yi Shixian, the good spy of effect
Point；The performance of Multi-functional arc welding generator is effectively raised in the case where not increasing cost, while reducing the failure rate of machine.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of Multifunctional welding drive circuit, which is characterized in that transformer T4, the transformer T4 are arranged in the driving circuit
Including at least one armature winding and at least two secondary windings；The armature winding is connected with input is exchanged, for the first time
The output of grade winding exports DC voltage through full-bridge rectification output module, and the output of second subprime winding is defeated through full-wave rectification output module
DC voltage out, wherein center tap terminal is arranged in the second subprime winding, and the center tap terminal and the full-bridge rectification export
The output negative terminal of module is connected with the output negative terminal of the full-wave rectification output module, the full-bridge rectification output module it is defeated
Anode is as the first output plus terminal out, and the output plus terminal of the full-wave rectification output module is as the second output plus terminal.
2. Multifunctional welding drive circuit according to claim 1, which is characterized in that the full-wave rectification output module packet
Include diode D10, diode D19, capacitor C45 and current divider, the anode of the diode D10 and the second subprime winding
6th pin is connected, and the anode of the diode D19 is connected with the 8th pin of the second subprime winding, two pole
The negative terminal of pipe D10 is connected with one end of the negative terminal of the diode D19 and the capacitor C45 as the second output plus terminal, institute
The other end for stating capacitor C45 is connected as the first output negative terminal, the other end of the current divider and institute with one end of current divider
The output negative terminal of the 7th pin and the full-wave rectification output module of stating second subprime winding is connected, wherein described
7th pin of secondary stage winding is center tap terminals.
3. Multifunctional welding drive circuit according to claim 2, which is characterized in that the full-wave rectification output module is also
Including capacitor C46 and variable resistance VR1.
4. Multifunctional welding drive circuit according to claim 1 or 2, which is characterized in that the full-bridge rectification exports mould
Block uses bridge rectifier chip.
5. Multifunctional welding drive circuit according to claim 2, which is characterized in that the full-bridge rectification output module packet
Include diode D11, diode D20, diode D18 and diode D21.
6. Multifunctional welding drive circuit according to claim 5, which is characterized in that the full-bridge rectification output module is also
Including inductance L1, capacitor C47, capacitor C48, capacitor C49, capacitor C50 and variable resistance VR2, wherein one end of the inductance L1
It is connected with the negative terminal of diode D20, diode D21, one end of the other end of the inductance L1 and capacitor C47, capacitor C48
One end, one end of capacitor C49, variable resistance VR2 one end be connected as the first output plus terminal；The capacitor C47's is another
End, the other end of capacitor C48, variable resistance VR2 the other end jointly with first output negative terminal be connected；The capacitor C49's
The other end, capacitor C50 one end be connected jointly with big ground terminal, the other end of the capacitor C50 is connected with the second output plus terminal
It connects.
7. Multifunctional welding drive circuit according to claim 6, which is characterized in that drawn in the first output negative terminal
One quick socket is as the second output negative terminal.
8. Multifunctional welding drive circuit according to claim 1 or 2, which is characterized in that first secondary windings and
The number of turns of second subprime winding is different.
9. Multifunctional welding drive circuit according to claim 8, which is characterized in that the output of first secondary windings
Voltage is greater than the output voltage of the second subprime winding.
10. Multifunctional welding drive circuit according to claim 8, which is characterized in that the armature winding, first grade
Turn ratio between winding and second subprime winding is 10:16:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371760.3A CN108115250B (en) | 2017-12-19 | 2017-12-19 | A kind of Multifunctional welding drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371760.3A CN108115250B (en) | 2017-12-19 | 2017-12-19 | A kind of Multifunctional welding drive circuit |
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| Publication Number | Publication Date |
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| CN108115250A CN108115250A (en) | 2018-06-05 |
| CN108115250B true CN108115250B (en) | 2019-11-01 |
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| CN201711371760.3A Active CN108115250B (en) | 2017-12-19 | 2017-12-19 | A kind of Multifunctional welding drive circuit |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111097999B (en) * | 2019-12-30 | 2022-03-11 | 上海沪工焊接集团股份有限公司 | Multifunctional power generation welding machine control system and use method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2913625A1 (en) * | 1979-04-05 | 1980-10-16 | Messer Griesheim Gmbh | DEVICE FOR DC AND / OR AC ARC WELDING WITH A INVERTER TO BE CONNECTED TO AN AC OR DC NETWORK |
| CN100343006C (en) * | 2004-01-15 | 2007-10-17 | 沈阳工业大学 | Multifunctional integrated welding and cutting equipment |
| US9199327B2 (en) * | 2013-01-29 | 2015-12-01 | Shenzhen Jasic Technology Co., Ltd. | Portable IGBT arc welding machine |
| CN104467513A (en) * | 2014-12-05 | 2015-03-25 | 江门市保值久机电有限公司 | Pulse type welder power circuit |
| CN204975634U (en) * | 2015-09-30 | 2016-01-20 | 深圳华意隆电气股份有限公司 | Welding set of soft switch of contravariant |
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Address after: Wenling city Taizhou town dock root of 317500 cities in Zhejiang province are mechanical industry Patentee after: Zhejiang lawston Technology Co., Ltd Address before: Wenling city Taizhou town dock root of 317527 cities in Zhejiang province are mechanical industry Patentee before: ZHEJIANG LAOSHIDUN WELDING EQUIPMENT Co.,Ltd. |
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Denomination of invention: Multifunctional welding machine driving circuit Effective date of registration: 20200629 Granted publication date: 20191101 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: Zhejiang lawston Technology Co.,Ltd. Registration number: Y2020330000363 |