CN109352159A - Dual output welding inverter power source and control method - Google Patents
Dual output welding inverter power source and control method Download PDFInfo
- Publication number
- CN109352159A CN109352159A CN201811612522.1A CN201811612522A CN109352159A CN 109352159 A CN109352159 A CN 109352159A CN 201811612522 A CN201811612522 A CN 201811612522A CN 109352159 A CN109352159 A CN 109352159A
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- welding
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- module
- control
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- 238000003466 welding Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000009977 dual effect Effects 0.000 title claims abstract description 15
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/241—Electric supplies
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/241—Electric supplies
- B23K11/243—Multiple welding installations fed by one source
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The present invention relates to a kind of dual output welding inverter power sources and control method for medium frequency inverter electric resistance welding equipment.It includes the rectification circuit being arranged between three-phase alternating-current supply output par, c and welding transformer, filter circuit and the inverter circuit being made of IGBT module；The inverter circuit includes 6 IGBT modules, it is divided into three pairs, one pair of them IGBT module constitutes two bridge circuits with other two pairs of IGBT modules respectively as shared module, the output end of the two bridge circuits respectively connects a welding transformer, while providing welding energy for two welding circuits.The invention has the advantages that 1, since two-way welding transformer being integrated in a power circuit, simplify equipment composition, reduce equipment totle drilling cost；2, due to carrying out centralized control and display to two-way welding process using a control module, operation and control are facilitated.
Description
Technical field
The present invention relates to a kind of dual output welding inverter power sources and control method for medium frequency inverter electric resistance welding equipment.
Background technique
The power circuit of medium frequency inverter electric resistance welding generally includes to be arranged in three-phase alternating-current supply output section and welding transformer
Between rectification circuit, filter circuit and the inverter circuit being made of IGBT module, its working principle is that: three-phase alternating current passes through
Rectification circuit and filter circuit are changed into direct current, and when welding, direct current is changed into the exchange arteries and veins of frequency 1000hz by inverter circuit
It rushes wave to export to welding transformer, provides operating voltage for welding electrode.Existing power supply circuit can only be supported to weld transformation all the way
Device work, when needing while supporting two group welding electrodes to work using two welding transformers, it usually needs two welderings of setting
Power-supply system is connect, not only equipment input cost is high, increases equipment overall space occupancy, and due to the control system of distinct device
System respectively independently carries out communication and parameter is shown, is unfavorable for the centralized management of control process.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind can simultaneously for two-way welding transformer provide power supply,
System constitute it is simple, at low cost, convenient for the dual output welding inverter power source and control method to welding process concentrated controling management.
Dual output welding inverter power source of the invention includes being arranged in three-phase alternating-current supply output par, c and welding transformer
Between rectification circuit, filter circuit and the inverter circuit being made of IGBT module；The inverter circuit includes 6 IGBT moulds
Block is divided into three pairs, and one pair of them IGBT module constitutes two bridge-type electricity with other two pairs of IGBT modules respectively as shared module
Road, the output end of the two bridge circuits respectively connects a welding transformer, while providing welding energy for two welding circuits.
Further, which further includes having control module, and the control signal output of control module is respectively connected to rectify
Circuit and inverter circuit, and the on-off and output pulse width of the on-off of controllable rectification circuit and each IGBT module.
Further, welding current can be acquired by being respectively arranged in the corresponding welding circuit of described two welding transformers
The current sense device of information, current sense device are respectively connected to control module, are adjusted and are welded by IGBT as control module
The foundation of electric current.The current sense device preferably uses Rogowski coil.
Further, the control module is also connected with the touch screen for showing operation data and input control instruction.
The control method of dual output welding inverter power source of the invention is: above-mentioned dual output welding inverter power source is used,
In welding process, a pair of of the IGBT module shared in control inverter circuit is controlled by control module and is worked with maximum pulse width, simultaneously
Controlling other two couples of IGBT, the electric current according to needed for corresponding welding circuit adjusts its pulsewidth respectively, makes each welding transformer
Export respective welding current.
The invention has the advantages that 1, since two-way welding transformer being integrated in a power circuit, simplify equipment
It constitutes, reduces equipment totle drilling cost；2, due to carrying out centralized control and display to two-way welding process using a control module,
Facilitate operation and control.
Detailed description of the invention
Fig. 1 is the systematic schematic diagram of inverter of the embodiment of the present invention；
Fig. 2 is that the corresponding IGBT module work pulsewidth of first rectifier bridge is believed in inverter circuit in control process of the embodiment of the present invention
Number waveform diagram；
Fig. 3 is that the corresponding IGBT module work pulsewidth of second rectifier bridge is believed in inverter circuit in control process of the embodiment of the present invention
Number waveform diagram.
Specific embodiment
As shown in Figure 1, the dual output welding inverter power source includes that setting becomes in three-phase alternating-current supply output par, c and welding
Rectification circuit 1, filter circuit 2 between depressor and the inverter circuit 3 being made of IGBT module；Inverter circuit includes 6 IGBT
Module, respectively U1 and U2, V1 and V2, W1 and W2 tri- are right, and wherein V1 and V2 a pair of IGBT module is as shared module, respectively with
Other two pairs of IGBT modules constitute two bridge circuits, and the output end of the two bridge circuits respectively connects a welding transformer,
Welding energy is provided simultaneously for two welding circuits.The device further includes having control module, the control signal output of control module
End is respectively connected to rectification circuit and inverter circuit, and the on-off of controllable rectification circuit and the on-off of each IGBT module and
Output pulse width.The electric current biography that can acquire welding current information is respectively arranged in the corresponding welding circuit of two welding transformers
Inductor component 4, current sense device is respectively connected to control module, adjusts the foundation of welding current by IGBT as control module.
Current sense device preferably uses Rogowski coil.Control module is also connected with for showing what operation data and input control instructed
Touch screen.
The embodiment of the present invention controls two IGBT modules of V1 and V2 in the welding process, by control module with maximum pulse width work
Make, while controlling other two couples of IGBT modules U1 and U2, W1 and the W2 electric current according to needed for corresponding welding circuit respectively
Determine its pulsewidth, waveform difference is as shown in Figures 2 and 3, and each welding transformer is made to export respective welding current.
Claims (5)
1. a kind of dual output welding inverter power source, including being arranged between three-phase alternating-current supply output par, c and welding transformer
Rectification circuit, filter circuit and the inverter circuit being made of IGBT module；It is characterized in that: the inverter circuit includes 6 IGBT
Module is divided into three pairs, and one pair of them IGBT module constitutes two bridge-types with other two pairs of IGBT modules respectively as shared module
Circuit, the output end of the two bridge circuits respectively connects a welding transformer, while providing welding energy for two welding circuits
Source.
2. dual output welding inverter power source according to claim 1, it is characterized in that: the device further includes having control module,
The control signal output of control module is respectively connected to rectification circuit and inverter circuit, and the on-off of controllable rectification circuit and
The on-off and output pulse width of each IGBT module.
3. dual output welding inverter power source according to claim 2, it is characterized in that: described two welding transformers are corresponding
The current sense device that can acquire welding current information is respectively arranged in welding circuit, current sense device is respectively connected to control
Molding block adjusts the foundation of welding current as control module by IGBT；
The current sense device preferably uses Rogowski coil.
4. dual output welding inverter power source according to claim 2, it is characterized in that: the control module be also connected with for
Show the touch screen of operation data and input control instruction.
5. a kind of control method of the dual output welding inverter power source using dual output welding inverter power source described in claim 2,
It is characterized in that: in the welding process, controlling a pair of of the IGBT module shared in control inverter circuit by control module with maximum arteries and veins
Width work, while controlling other two couples of IGBT the electric current according to needed for corresponding welding circuit adjusts its pulsewidth respectively, make
Each welding transformer exports respective welding current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612522.1A CN109352159A (en) | 2018-12-27 | 2018-12-27 | Dual output welding inverter power source and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612522.1A CN109352159A (en) | 2018-12-27 | 2018-12-27 | Dual output welding inverter power source and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109352159A true CN109352159A (en) | 2019-02-19 |
Family
ID=65330027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811612522.1A Pending CN109352159A (en) | 2018-12-27 | 2018-12-27 | Dual output welding inverter power source and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109352159A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917660A (en) * | 1995-06-26 | 1997-01-17 | Shigeisa Imoto | Switch circuit |
| US5892664A (en) * | 1997-01-10 | 1999-04-06 | Vedder; Dietrich | Inverter for connecting a variable voltage power source to a utility grid |
| CN202224811U (en) * | 2011-08-25 | 2012-05-23 | 深圳市鸿栢科技实业有限公司 | High-frequency stud welder with two transformers |
| CN202388118U (en) * | 2011-12-30 | 2012-08-22 | 沈阳中科机械电子工程有限公司 | Intermediate frequency inverter resistance welding machine |
| CN202741914U (en) * | 2012-06-25 | 2013-02-20 | 应城骏腾发自动焊接装备有限公司 | Intermediate-frequency-inversion direct-current welding power supply |
| CN202877717U (en) * | 2012-11-12 | 2013-04-17 | 小原(南京)机电有限公司 | Big current inverter welding machine control circuit |
| CN205520053U (en) * | 2016-01-15 | 2016-08-31 | 北京中戎华泰科技开发有限公司 | A controlling means for resistance welds |
| CN106141378A (en) * | 2016-09-07 | 2016-11-23 | 上海和宗焊接设备制造有限公司 | A kind of by the electric welding machine circuit of lithium battery power supply |
-
2018
- 2018-12-27 CN CN201811612522.1A patent/CN109352159A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917660A (en) * | 1995-06-26 | 1997-01-17 | Shigeisa Imoto | Switch circuit |
| US5892664A (en) * | 1997-01-10 | 1999-04-06 | Vedder; Dietrich | Inverter for connecting a variable voltage power source to a utility grid |
| CN202224811U (en) * | 2011-08-25 | 2012-05-23 | 深圳市鸿栢科技实业有限公司 | High-frequency stud welder with two transformers |
| CN202388118U (en) * | 2011-12-30 | 2012-08-22 | 沈阳中科机械电子工程有限公司 | Intermediate frequency inverter resistance welding machine |
| CN202741914U (en) * | 2012-06-25 | 2013-02-20 | 应城骏腾发自动焊接装备有限公司 | Intermediate-frequency-inversion direct-current welding power supply |
| CN202877717U (en) * | 2012-11-12 | 2013-04-17 | 小原(南京)机电有限公司 | Big current inverter welding machine control circuit |
| CN205520053U (en) * | 2016-01-15 | 2016-08-31 | 北京中戎华泰科技开发有限公司 | A controlling means for resistance welds |
| CN106141378A (en) * | 2016-09-07 | 2016-11-23 | 上海和宗焊接设备制造有限公司 | A kind of by the electric welding machine circuit of lithium battery power supply |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |
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| RJ01 | Rejection of invention patent application after publication |