CN1094665A - Bidirectional thyristor voltage-regulating and current-stabilizing multipurpose electric welder - Google Patents
Bidirectional thyristor voltage-regulating and current-stabilizing multipurpose electric welder Download PDFInfo
- Publication number
- CN1094665A CN1094665A CN 93114984 CN93114984A CN1094665A CN 1094665 A CN1094665 A CN 1094665A CN 93114984 CN93114984 CN 93114984 CN 93114984 A CN93114984 A CN 93114984A CN 1094665 A CN1094665 A CN 1094665A
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- China
- Prior art keywords
- current
- voltage
- welding machine
- silicon
- triode thyristor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 29
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 26
- 239000010703 silicon Substances 0.000 claims abstract description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000033228 biological regulation Effects 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000006641 stabilisation Effects 0.000 claims description 11
- 238000011105 stabilization Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 5
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 230000001939 inductive effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000004021 metal welding Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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- Arc Welding Control (AREA)
Abstract
The invention is a silicon controlled stepless voltage regulating, automatic current stabilizing control circuit composed of bidirectional silicon controlled rectifier and electronic element. The control circuit can regulate the voltage of single-phase AC or silicon rectifier welder in stepless mode, and stabilize the welding current automatically, so that it can solve the problem of penetration of thin metal plate, pipe and section bar by welding workpiece. The invention belongs to the field of metal welding. The control circuit of the present invention can also be used for stepless voltage regulation, light regulation and speed regulation control of resistors, single-phase transformers, motors and inductive loads, and can be used for stabilizing current of the loads and has little interference on radio electrodes.
Description
The invention belongs to dynamo-electric field:
The present invention forms the controllable silicon stepless voltage regulation by bidirectional triode thyristor and electronic component, the automatic steady current control circuit, and this control circuit carries out stepless voltage regulation to single phase ac or silicon rectifier electric welding machine, and automatic stabilisation welding current, can solve weldment because of sparking or the unstable burn-through metal sheet of electric current, problems such as pipe, section bar, the present invention can be used as various metal sheets, pipe, section bar welding.Control circuit of the present invention also can be to resistance, and single-phase transformer, motor, inductive load are done the stepless pressure regulation light modulation, and speed regulating control, and can be to the load current stabilization is atomic to the radio interference.
Thin plate electric welding machine of the present invention,, extensively model application lower than existing electric welding machine cost low cost.
The present invention is shown in circuit diagram:
Circuit is seen schematic diagram, among the figure by electric welding machine DH, voltmeter V, protector RD
1, RD
2Form the electric welding machine system.Bidirectional triode thyristor SCR, commutation resistance R
10, the commutation capacitor C
2Form the bidirectional triode thyristor major loop.Current transformer L, silicon bridge Z
1, voltage-stabiliser tube DW
1, coarse adjustment potentiometer W
1, fine tuning potentiometer W
2, current-limiting resistance R
1, R
3, safe resistance R
2Form current detecting, the feedback adjusting system.Photoelectrical coupler GD, transistor BG, this DW of voltage stabilizing
2, resistance R
4, R
5, R
6Form photoelectricity coupling and feedback amplification system, silicon bridge ZL
2, ZL
3, ZL
4, potentiometer W
3Trigger tube ST capacitor C
1, resistance R
7, R
8, R
9Form the bidirectional triode thyristor trigger.
Circuit working principle (figure as 1) is at RD
1, R
D2Two ends add and exchange single-phase 220 volts or 380 volts of voltages, adjust voltage-regulation potentiometer W
3, make the voltmeter that is connected on the electric welding machine secondary windings, the corresponding voltage of indication when required welding current.With secondary binding post B
1, B
2Connect electrode holder line and weldment respectively, carry out test weld and connect, regulate feedback potentiometer W
1W
2And potentiometer W
3, make welding machine current stabilization when sparking and welding, be fit to.
Its course of work is as follows: when welding rod is drawn fire or is stained with short circuit with weldment, the welding machine secondary current is heightened, this electric current induces voltage on current transformer L, and this voltage signal is through silicon bridge ZL
1Rectification, as the dc source of supplying with light emitting diode in the photoelectrical coupler, luminous strong and weak variation of light emitting diode is coupled to the feedback amplifying stage by the phototriode in the photoelectrical coupler, changes FEEDBACK CONTROL potentiometer W
1, W
2Resistance, can change electric current by light emitting diode in the photoelectrical coupler, promptly changed the size of feedback quantity, voltage-stabiliser tube DW for the restriction small-signal feedback quantity so that bidirectional triode thyristor is operated in optimum state.
Phototriode among the photoelectrical coupler GD amplifies the luminous feedback signal of light emitting diode, puts the sensitiveer utmost point that added again of feedback amplifying signal by BG, DW in order to make
2, R
4, R
5, R
6The feedback amplifier of forming, the BG colelctor electrode, emitter resistance is directly proportional with feedback signal, and feedback signal is little, and the resistance of collection look utmost point emitter stage is little, on the contrary resistance increases.This resistance is again silicon bridge ZL simultaneously
2Dc load resistance, the variation of this resistance is with the change ZL that flows through
2Alternating current, make in the trigger and to trigger capacitor C
1Charging interval controlled by the collector emitter resistance variations, the variation that the conducting of bidirectional triode thyristor is separated with feedback quantity changes.When the welding machine output current is big, on the contrary feedback quantity also ambassador's output current reduce electric current and increase, when welding machine was unloaded, feedback quantity was zero, welding machine output voltage maximum guarantees that the welding machine arc is needed.Silicon bridge ZL in the schematic diagram
3With R
8, R
9Be to go up residual voltage by diode and R in the silicon bridge for triggering capacitor C
8, R
9The loop discharge makes capacitor C
1Last voltage, discharge is zero or is close to zero before other half-wave voltage of alternating current arrives.Make capacitor C
1Powering on and being pressed in each alternation all is to begin to fill from zero-pressure or near zero-pressure, the silicon bridge ZL that links to each other with trigger tube ST
4, its objective is to make the unidirectional all-wave of trigger tube ST to the discharge of the bidirectional triode thyristor control utmost point, to improve the V of ST
80Positive and negative asymmetrical characteristic.
Just become the silicon rectifier dc welding machine if add four silicon diodes at the electric welding machine output, as accompanying drawing 1, C among the figure
3With R
11Be the inductive discharge loop, not breakdown with the protection silicon diode.Attached 3 is to add a DC ammeter on the accompanying drawing 2 basic silicon, can be as charger to charge in batteries, and K switch is a closure when doing DC welder, with the ammeter short circuit, in case electric current is excessive, burns out ammeter.
The present invention can be used as various thin plates, light wall pipe, section bar welding.
Accompanying drawing simple declaration of the present invention.
Fig. 1, Fig. 2, Fig. 3, middle L current transformer.DH electric welding machine RD
1, RD
2The fuse device.R
1, R
2, R
3, R
4, R
5, R
6, R
7, R
8, R
9, R
10Resistance.Device is closed in GD photoelectricity corner.SCR bidirectional triode thyristor, ST are separated and are sent out diode ZL
1ZL
2ZL
3ZL
4, silicon bridge W
1W
2, W
3Potentiometer DW
1, DW
2Voltage-stabiliser tube.C
1, C
2, C
3Capacitor.D
1D
2D
3D
4, silicon bridge or silicone tube.
Claims (7)
1, a kind of bidirectional triode thyristor stepless voltage regulation, the current stabilization multipurpose welder is characterized in that bidirectional triode thyristor or silicon controlled module SCR control single phase ac or single-phase silicon rectifier dc welding machine is made voltage, electric current is regulated and control.Control silicon SCR in two, the commutation resistance R
10, the commutation capacitor C
2Form the post to the controllable silicon major loop.
2, a kind of bidirectional triode thyristor stepless voltage regulation, the voltage stabilizing multipurpose welder, it is characterized in that Current Transformer makes electric welding machine output current detection system, and with this curtage as the reponse system power supply, mutual inductance can be connected on output or input along L, current detecting feedback adjusting system by, current transformer L, silicon bridge ZL
1, voltage-stabiliser tube DW
1, coarse adjustment potentiometer W
1, thin potentiometer W
2, current-limiting resistance R
1, R
3, safe resistance 2 is formed.
3, a kind of bidirectional triode thyristor stepless voltage regulation, current stabilization is used fast electric welding machine more, it is characterized in that current detection signal transformer L and controllable silicon trigger the coupler GD photoelectrical coupler of feedback circuit.Reach the photoelectrical coupler of forming with discrete component.Photoelectrical coupler GD, transistor BG, voltage-stabiliser tube DW
2, resistance R
4, R
5Form photoelectricity coupling and feedback amplification system.
4, a kind of bidirectional triode thyristor stepless voltage regulation, current stabilization are used fast electric welding machine more, it is characterized in that triggering in its circuits for triggering of controllable silicon, trigger capacitor C1, voltage all begins to charge from no-voltage or near no-voltage at each half-wave of alternating current, or adopt other circuits for triggering make capacitor electrode be pressed in alternating current each when just partly transferring knot speed, the capacitor discharge is zero or is close to zero circuit that eigen comprises the employing discrete component, integrated circuit or both combinations, the bidirectional triode thyristor trigger is by silicon bridge ZL
2, ZL
3, ZL
4, potentiometer W
3Separate and send out pipe ST, capacitor C1, resistance R
8, R
9, form.
5, a kind of bidirectional triode thyristor stepless voltage regulation current stabilization multipurpose welder is characterized in that electric welding machine adopts no reactor formula, and its iron core is the square shape structure.The red winding of primary and secondary as required can be independently on two iron core column, or do hybrid combining as required on two iron core column, and secondary windings can be according to purposes, tap or not tap.
6, a kind of bidirectional thyristor for regulating voltage, the current stabilization multipurpose welder is characterized in that two circuit of claim 1 and claim 5 share can make electric welding machine and control circuit.
7, a kind of bidirectional thyristor for regulating voltage, the current stabilization multipurpose welder is characterized in that two circuit of claim 1 and claim 6 share can make single phase ac transformer, motor, electric light, temperature, control and other electrical equipment pressure regulation automatically transfers stream or current stabilization to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114984 CN1094665A (en) | 1993-11-29 | 1993-11-29 | Bidirectional thyristor voltage-regulating and current-stabilizing multipurpose electric welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114984 CN1094665A (en) | 1993-11-29 | 1993-11-29 | Bidirectional thyristor voltage-regulating and current-stabilizing multipurpose electric welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1094665A true CN1094665A (en) | 1994-11-09 |
Family
ID=4990728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93114984 Pending CN1094665A (en) | 1993-11-29 | 1993-11-29 | Bidirectional thyristor voltage-regulating and current-stabilizing multipurpose electric welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1094665A (en) |
-
1993
- 1993-11-29 CN CN 93114984 patent/CN1094665A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |