CN103737153B - High-frequency arc ignition circuit - Google Patents
High-frequency arc ignition circuit Download PDFInfo
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- CN103737153B CN103737153B CN201410009328.XA CN201410009328A CN103737153B CN 103737153 B CN103737153 B CN 103737153B CN 201410009328 A CN201410009328 A CN 201410009328A CN 103737153 B CN103737153 B CN 103737153B
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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
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/067—Starting the arc
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- Physics & Mathematics (AREA)
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- Mechanical Engineering (AREA)
- Rectifiers (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The present invention relates to a kind of high-frequency arc ignition circuit, comprise transformer, feature is: primary one end connects controllable silicon positive pole, the 6th diode cathode, the primary other end connects controllable silicon negative pole, the 6th diode cathode, the 3rd resistance one end, transformer secondary output one end connects the 5th diode cathode, 5th diode cathode connects second connector one end, and the second connector other end connects discharger one end, the secondary other end of discharger other end connection transformer; Control machines pole connects voltage-stabiliser tube positive pole, the 3rd resistance other end, voltage-stabiliser tube negative pole connects second resistance one end, the second resistance other end connects the first diode cathode, the 3rd diode cathode, first diode cathode connects the second diode cathode, second diode cathode connects the 4th diode cathode, the 3rd electric capacity one end, the 3rd resistance one end, controllable silicon negative pole, and the 4th diode cathode connects the 3rd diode cathode.Smooth running of the present invention, welding starting the arc efficiency is high.
Description
Technical field
The present invention relates to a kind of high-frequency arc ignition circuit, the high-frequency arc strike device of the equipment such as especially a kind of applicable alternating current-direct current argon arc welding, cutting machine, belongs to electrical applications technical field.
Background technology
In traditional high-frequency arc ignition circuit technology, generally all there is the shortcomings such as arcing initiation success rate is not high, high-frequency discharge is not strong, striking is delayed.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of high-frequency arc ignition circuit, smooth running, welding starting the arc efficiency is high.
According to technical scheme provided by the invention, a kind of high-frequency arc ignition circuit, comprise step-up transformer, feature is: the elementary one end of described step-up transformer is connected with the first end of the 4th electric capacity, second end of the 4th electric capacity respectively with silicon controlled positive pole, the negative pole of the 6th diode, the first end of the first resistance connects, the other end that step-up transformer is elementary and silicon controlled negative pole, the positive pole of the 6th diode, the first end of the 3rd resistance, the first end of the 3rd electric capacity connects, the secondary one end of step-up transformer is connected with the positive pole of the 5th diode, the negative pole of the 5th diode is connected with the first end of the second connector, second end of the second connector is connected with the first end of discharger, the other end that second end of discharger is secondary with step-up transformer is connected, described silicon controlled trigger electrode respectively with the positive pole of voltage-stabiliser tube, second end of the 3rd resistance connects, the negative pole of voltage-stabiliser tube respectively with the first end of the second resistance, second end of the 3rd electric capacity connects, second end of the second resistance is connected with the first end of the first resistance, second end of the first resistance respectively with the negative pole of the first diode, the negative pole of the 3rd diode connects, the positive pole of the first diode respectively with the negative pole of the second diode, the first end of the first connector connects, the positive pole of the second diode respectively with the positive pole of the 4th diode, the first end of the 3rd electric capacity, the first end of the 3rd resistance, silicon controlled negative pole connects, the negative pole of the 4th diode respectively with the positive pole of the 3rd diode, second end of the first connector connects.
The first electric capacity in parallel between the positive pole and the negative pole of the 4th diode of described first diode.
The second electric capacity in parallel between the negative pole and the positive pole of the 4th diode of described 3rd diode.
Electric four resistance in parallel between the positive pole and negative pole of described 6th diode.
Difference the 5th electric capacity in parallel and the 6th electric capacity between the negative pole of described 5th diode and the second end of discharger.
High-frequency arc ignition circuit of the present invention is applicable to long distance welding gun striking welding and the landfilling area automatically of 25 meters, can guarantee that welding starting the arc success rate is high, striking distance, disturb little; Good reliability of the present invention, little to the harm of the facility switching such as inverter type welder, cutting machine device, circuit structure is simple, reliability is high, be a kind of with inverter type welder, the compatible good new HF arc starter of cutting machine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1: described high-frequency arc ignition circuit comprises discharger F1, step-up transformer T1, first diode D1, second diode D2, 3rd diode D3, 4th diode D4, 5th diode D5, 6th diode D6, voltage-stabiliser tube D7, controllable silicon SCR, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, first electric capacity C1, second electric capacity C2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, 6th electric capacity C6, first connector CN1, second connector CN2 etc.
As shown in Figure 1, the present invention includes step-up transformer T1, the elementary one end of step-up transformer T1 is connected with the first end of the 4th electric capacity C4, second end of the 4th electric capacity C4 respectively with the positive pole of controllable silicon SCR, the negative pole of the 6th diode D6, the first end of the first resistance R1 connects, the negative pole of the other end that step-up transformer T1 is elementary and controllable silicon SCR, the positive pole of the 6th diode D6, the first end of the 3rd resistance R3, the first end of the 3rd electric capacity C3 connects, one end of step-up transformer T1 level is connected with the positive pole of the 5th diode D5, the negative pole of the 5th diode D5 is connected with the first end of the second connector CN2 exported for high-frequency and high-voltage, second end of the second connector CN2 is connected with the first end of discharger F1, the other end of the second end and step-up transformer T1 the level of discharger F1 is connected, the trigger electrode of described controllable silicon SCR respectively with the positive pole of voltage-stabiliser tube D7, second end of the 3rd resistance R3 connects, the negative pole of voltage-stabiliser tube D7 respectively with the first end of the second resistance R2, second end of the 3rd electric capacity C3 connects, second end of the second resistance R2 is connected with the first end of the first resistance R1, second end of the first resistance R1 respectively with the negative pole of the first diode D1, the negative pole of the 3rd diode D3 connects, the positive pole of the first diode D1 respectively with the negative pole of the second diode D2, first end for the first connector CN1 exchanging 110V input connects, the positive pole of the second diode D2 respectively with the positive pole of the 4th diode D4, the first end of the 3rd electric capacity C3, the first end of the 3rd resistance R3, the negative pole of controllable silicon SCR connects, the negative pole of the 4th diode D4 respectively with the positive pole of the 3rd diode D3, second end of the first connector CN1 connects,
The first electric capacity C1 in parallel between the positive pole and the negative pole of the 4th diode D4 of described first diode D1;
The second electric capacity C2 in parallel between the negative pole and the positive pole of the 4th diode D4 of described 3rd diode D3;
Electric four resistance R4 in parallel between the positive pole and negative pole of described 6th diode D6;
Difference the 5th electric capacity C5 and the 6th electric capacity C6 in parallel between the negative pole of described 5th diode D5 and second end of discharger F1.
Described 3rd resistance R3 is the conventional connection resistance of general silicon controlled, and the 3rd electric capacity C3 plays the effect of filtering spike; Controllable silicon SCR: BT151 is a unidirectional controllable silicon, and DC voltage conversion is become pulse voltage; Second resistance R2 is the resistance of a 1/4w-8.2k, and this resistance mainly plays the effect of protection bi-directional voltage stabilizing pipe D7; The voltage stabilizing value of voltage-stabiliser tube D7 is 30V, also can adopt the 30V Zener diode of two differential concatenations; 4th resistance R4 plays the attenuation to resonance circuit, and observing with oscillograph is a spike waveform of decaying.
Operation principle of the present invention: Part I (rectification): the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 power frequency AC110V/50Hz electric current to input carries out rectification, obtain 155V(110 × 1.414) DC voltage, this operating voltage provides the pulse power by controllable silicon SCR to step-up transformer T1 on the one hand, provides trigger voltage on the other hand by the second resistance R2 and voltage-stabiliser tube D7 to the trigger electrode of controllable silicon SCR; First resistance R1 is the cement resistor of 200 Ω/15W, plays the effect of resistance current-limiting protection;
Part II (resonance): 155V voltage is a full sinusoidal wave rectified waveform, in the one-period of this waveform, voltage does not arrive the voltage stabilizing value of 30V(voltage-stabiliser tube D7) time, controllable silicon SCR is in not on-state, this time, voltage charged to the 4th electric capacity C4, was elementaryly equivalent to a wire, when voltage is more than 30V time, controllable silicon SCR conducting, the elementary composition LC of the 4th electric capacity C4 and step-up transformer T1 vibrates (LC cycle of oscillation:
, unit Hz), the 6th diode D6 plays clamping action; The interval conducting of such controllable silicon SCR, at the elementary generation impulse hunting electric current of step-up transformer T1, goes out high pressure through being coupling in secondary induction;
Part III (rectification): the 5th diode D5 by boosting after high pressure again rectification become DC voltage, after the 5th electric capacity C5, the 6th electric capacity C6 filtering, produce certain high pressure at striking discharger F1 two ends, thus electric discharge striking.
Claims (5)
1. a high-frequency arc ignition circuit, comprise step-up transformer (T1), it is characterized in that: the elementary one end of described step-up transformer (T1) is connected with the first end of the 4th electric capacity (C4), second end of the 4th electric capacity (C4) respectively with the positive pole of controllable silicon (SCR), the negative pole of the 6th diode (D6), the first end of the first resistance (R1) connects, the negative pole of the other end that step-up transformer (T1) is elementary and controllable silicon (SCR), the positive pole of the 6th diode (D6), the first end of the 3rd resistance (R3), the first end of the 3rd electric capacity (C3) connects, the secondary one end of step-up transformer (T1) is connected with the positive pole of the 5th diode (D5), the negative pole of the 5th diode (D5) is connected with the first end of the second connector (CN2), second end of the second connector (CN2) is connected with the first end of discharger (F1), the other end that second end of discharger (F1) is secondary with step-up transformer (T1) is connected, the trigger electrode of described controllable silicon (SCR) respectively with the positive pole of voltage-stabiliser tube (D7), second end of the 3rd resistance (R3) connects, the negative pole of voltage-stabiliser tube (D7) respectively with the first end of the second resistance (R2), second end of the 3rd electric capacity (C3) connects, second end of the second resistance (R2) is connected with the first end of the first resistance (R1), second end of the first resistance (R1) respectively with the negative pole of the first diode (D1), the negative pole of the 3rd diode (D3) connects, the positive pole of the first diode (D1) respectively with the negative pole of the second diode (D2), the first end of the first connector (CN1) connects, the positive pole of the second diode (D2) respectively with the positive pole of the 4th diode (D4), the first end of the 3rd electric capacity (C3), the first end of the 3rd resistance (R3), the negative pole of controllable silicon (SCR) connects, the negative pole of the 4th diode (D4) respectively with the positive pole of the 3rd diode (D3), second end of the first connector (CN1) connects.
2. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: the first electric capacity (C1) in parallel between the positive pole and the negative pole of the 4th diode (D4) of described first diode (D1).
3. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: the second electric capacity (C2) in parallel between the negative pole and the positive pole of the 4th diode (D4) of described 3rd diode (D3).
4. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: electric four resistance (R4) in parallel between the positive pole and negative pole of described 6th diode (D6).
5. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: difference the 5th electric capacity (C5) in parallel and the 6th electric capacity (C6) between the negative pole of described 5th diode (D5) and the second end of discharger (F1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009328.XA CN103737153B (en) | 2014-01-08 | 2014-01-08 | High-frequency arc ignition circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009328.XA CN103737153B (en) | 2014-01-08 | 2014-01-08 | High-frequency arc ignition circuit |
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| Publication Number | Publication Date |
|---|---|
| CN103737153A CN103737153A (en) | 2014-04-23 |
| CN103737153B true CN103737153B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410009328.XA Active CN103737153B (en) | 2014-01-08 | 2014-01-08 | High-frequency arc ignition circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400185B (en) * | 2014-10-28 | 2016-05-04 | 无锡汉神电气有限公司 | The striking detection of electric arc welding equipment and push current control circuit |
| CN106513934A (en) * | 2016-12-29 | 2017-03-22 | 浙江联洋机电科技有限公司 | High-frequency high-voltage arc ignition circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2362639Y (en) * | 1998-12-16 | 2000-02-09 | 蒋仲湘 | Novel trigger control circuit for silicon controlled dc welding machine |
| CN202028869U (en) * | 2011-04-13 | 2011-11-09 | 上海诺威尔焊接设备制造有限公司 | Novel plasma arc cutter circuit |
| CN202129536U (en) * | 2011-05-13 | 2012-02-01 | 杭州恒湖科技有限公司 | Argon-arc-welding arc ignition circuit |
| CN202741889U (en) * | 2012-07-17 | 2013-02-20 | 江苏大德重工有限公司 | Circuit for realizing arc striking method of CO2/MAG arc welding machine |
| CN202804443U (en) * | 2012-04-01 | 2013-03-20 | 广州亦高电气设备有限公司 | Electric welding machine arc-ignition apparatus |
| CN103111719A (en) * | 2013-02-19 | 2013-05-22 | 广州友田机电设备有限公司 | High frequency arc ignition circuit with direct current voltage output |
| CN203712045U (en) * | 2014-01-08 | 2014-07-16 | 无锡汉神电气有限公司 | High-frequency arc ignition circuit |
-
2014
- 2014-01-08 CN CN201410009328.XA patent/CN103737153B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2362639Y (en) * | 1998-12-16 | 2000-02-09 | 蒋仲湘 | Novel trigger control circuit for silicon controlled dc welding machine |
| CN202028869U (en) * | 2011-04-13 | 2011-11-09 | 上海诺威尔焊接设备制造有限公司 | Novel plasma arc cutter circuit |
| CN202129536U (en) * | 2011-05-13 | 2012-02-01 | 杭州恒湖科技有限公司 | Argon-arc-welding arc ignition circuit |
| CN202804443U (en) * | 2012-04-01 | 2013-03-20 | 广州亦高电气设备有限公司 | Electric welding machine arc-ignition apparatus |
| CN202741889U (en) * | 2012-07-17 | 2013-02-20 | 江苏大德重工有限公司 | Circuit for realizing arc striking method of CO2/MAG arc welding machine |
| CN103111719A (en) * | 2013-02-19 | 2013-05-22 | 广州友田机电设备有限公司 | High frequency arc ignition circuit with direct current voltage output |
| CN203712045U (en) * | 2014-01-08 | 2014-07-16 | 无锡汉神电气有限公司 | High-frequency arc ignition circuit |
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| CN103737153A (en) | 2014-04-23 |
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Address after: 214101 Jiangsu city of Wuxi Province east of Xishan Furong District of Xishan Economic Development Zone, Road No. 100 Patentee after: Wuxi Han God Electric Limited by Share Ltd Address before: 214101 Jiangsu city of Wuxi Province east of Xishan Furong District of Xishan Economic Development Zone, Road No. 100 Patentee before: Wuxi Hanshen Electric Co., Ltd. |