CN203712045U - High-frequency arc ignition circuit - Google Patents
High-frequency arc ignition circuit Download PDFInfo
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- CN203712045U CN203712045U CN201420010917.5U CN201420010917U CN203712045U CN 203712045 U CN203712045 U CN 203712045U CN 201420010917 U CN201420010917 U CN 201420010917U CN 203712045 U CN203712045 U CN 203712045U
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- China
- Prior art keywords
- diode
- resistance
- negative pole
- transformer
- positive pole
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 25
- 239000010703 silicon Substances 0.000 claims abstract description 25
- 239000003381 stabilizer Substances 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 abstract description 21
- 230000000087 stabilizing effect Effects 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Abstract
The utility model relates to a high-frequency arc ignition circuit which comprises a transformer and is characterized in that one primary end of the transformer is connected with an anode of a silicon controlled rectifier and a cathode of a sixth diode, the other primary end of the transformer is connected with a cathode of the silicon controlled rectifier, an anode of the sixth diode and one end of a third resistor, one secondary end of the transformer is connected with an anode of a fifth diode, a cathode of the fifth diode is connected with one end of a second connector, the other end of the second connector is connected with one end of a discharger, and the other end of the discharger is connected with the other secondary end of the transformer. A trigger electrode of the silicon controlled rectifier is connected with an anode of a stabilizing tube and the other end of the third resistor, a cathode of the stabilizing tube is connected with one end of a second resistor, the other end of the second resistor is connected with a cathode of a first diode and a cathode of a third diode, an anode of the first diode is connected with a cathode of a second diode, an anode of the second diode is connected with an anode of a fourth diode, one end of a third capacitor, one end of the third resistor and the cathode of the silicon controlled, and a cathode of the fourth diode is connected with an anode of the third diode. The circuit is stable in operation and high in welding arcing efficiency.
Description
Technical field
The utility model relates to a kind of high-frequency arc ignition circuit, and 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 hysteresis.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of high-frequency arc ignition circuit is provided, smooth running, and welding starting the arc efficiency is high.
The technical scheme providing according to the utility model, 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, the second end of the 4th electric capacity is anodal with silicon controlled respectively, 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, the second end of the second connector is connected with the first end of discharger, the second end other end secondary with step-up transformer of discharger is connected, described silicon controlled trigger electrode respectively with the positive pole of voltage-stabiliser tube, the second end of the 3rd resistance connects, the negative pole of voltage-stabiliser tube respectively with the first end of the second resistance, the second end of the 3rd electric capacity connects, the second end of the second resistance is connected with the first end of the first resistance, the 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, the second end of the first connector connects.
The first electric capacity in parallel between the negative pole of anodal and the 4th diode of described the first diode.
The second electric capacity in parallel between the negative pole of described the 3rd diode and the positive pole of the 4th diode.
The 4th resistance in parallel between the positive pole of described the 6th diode and negative pole.
The 5th electric capacity respectively in parallel and the 6th electric capacity between the second end of the negative pole of described the 5th diode and discharger.
High-frequency arc ignition circuit described in the utility model is applicable to the length of 25 meters apart from welding gun striking welding and the weldering that automatically fills silk, can guarantee to weld that starting the arc success rate is high, striking distance, disturb little; The utility model good reliability, little to the harm of the facility switching device such as inverter type welder, cutting machine, circuit structure is simple, reliability is high, is a kind of and inverter type welder, the compatible good new HF arc starter of cutting machine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: described high-frequency arc ignition circuit comprises discharger F1, step-up transformer T1, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, voltage-stabiliser tube D7, controllable silicon SCR, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6, the first connector CN1, the second connector CN2 etc.
As shown in Figure 1, the utility model comprises step-up transformer T1, the elementary one end of step-up transformer T1 is connected with the first end of the 4th capacitor C 4, the second end of the 4th capacitor C 4 respectively with the positive pole of controllable silicon SCR, the negative pole of the 6th diode D6, the first end of the first resistance R 1 connects, the other end that step-up transformer T1 is elementary and the negative pole of controllable silicon SCR, the positive pole of the 6th diode D6, the first end of the 3rd resistance R 3, the first end of the 3rd capacitor C 3 connects, one end of T1 level of step-up transformer 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 exporting for high-frequency and high-voltage, the second end of the second connector CN2 is connected with the first end of discharger F1, the other end of T1 the level of the second end and step-up transformer of discharger F1 is connected, the trigger electrode of described controllable silicon SCR respectively with the positive pole of voltage-stabiliser tube D7, the second end of the 3rd resistance R 3 connects, the negative pole of voltage-stabiliser tube D7 respectively with the first end of the second resistance R 2, the second end of the 3rd capacitor C 3 connects, the second end of the second resistance R 2 is connected with the first end of the first resistance R 1, the second end of the first resistance R 1 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, for exchanging the first end of the first connector CN1 of 110V input, connect, the positive pole of the second diode D2 respectively with the positive pole of the 4th diode D4, the first end of the 3rd capacitor C 3, the first end of the 3rd resistance R 3, 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, the second end of the first connector CN1 connects,
The first capacitor C 1 in parallel between the negative pole of anodal and the 4th diode D4 of described the first diode D1;
The second capacitor C 2 in parallel between the negative pole of described the 3rd diode D3 and the positive pole of the 4th diode D4;
The 4th resistance R 4 in parallel between the positive pole of described the 6th diode D6 and negative pole;
The 5th capacitor C 5 respectively in parallel and the 6th capacitor C 6 between the negative pole of described the 5th diode D5 and the second end of discharger F1.
Described the 3rd resistance R 3 is the conventional connection resistance of general silicon controlled, and the 3rd capacitor C 3 plays the effect of filtering spike; Controllable silicon SCR: BT151 is a unidirectional controllable silicon, and DC voltage conversion is become to pulse voltage; The second resistance R 2 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; The 4th resistance R 4 plays the attenuation to resonance circuit, and with oscillograph, observing is the spike waveform of a decay.
Operation principle of the present utility model: first's (rectification): the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 carry out rectification to the power frequency AC110V/50Hz electric current of input, 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 R 2 and voltage-stabiliser tube D7 to the trigger electrode of controllable silicon SCR; The first resistance R 1 is the cement resistor of a 200 Ω/15W, plays the effect of resistance current-limiting protection;
Second portion (resonance): 155V voltage is a sinusoidal current waveform in full-wave rectifier, 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 was given the 4th capacitor C 4 chargings, was elementaryly equivalent to a wire, when voltage surpasses 30V, controllable silicon SCR conducting, the elementary composition LC vibration of the 4th capacitor C 4 and step-up transformer T1 (LC cycle of oscillation:
, the Hz of unit), the 6th diode D6 plays clamping action; The conducting at intermittence of 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 like this;
Third part (rectification): the 5th diode D5 by the high pressure after boosting again rectification become DC voltage, after the 5th capacitor C 5, the 6th capacitor C 6 filtering, at striking discharger F1 two ends, produce certain high pressure, 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), the 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), the second end of the second connector (CN2) is connected with the first end of discharger (F1), the second end of discharger (F1) other end 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), the 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), the second end of the 3rd electric capacity (C3) connects, the second end of the second resistance (R2) is connected with the first end of the first resistance (R1), the 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), the 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 in parallel (C1) between the positive pole of described the first diode (D1) and the negative pole of the 4th diode (D4).
3. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: the second electric capacity in parallel (C2) between the negative pole of described the 3rd diode (D3) and the positive pole of the 4th diode (D4).
4. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: the 4th resistance (R4) in parallel between the positive pole of described the 6th diode (D6) and negative pole.
5. high-frequency arc ignition circuit as claimed in claim 1, is characterized in that: the 5th electric capacity (C5) respectively in parallel and the 6th electric capacity (C6) between the negative pole of described the 5th diode (D5) and the second end of discharger (F1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010917.5U CN203712045U (en) | 2014-01-08 | 2014-01-08 | High-frequency arc ignition circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010917.5U CN203712045U (en) | 2014-01-08 | 2014-01-08 | High-frequency arc ignition circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203712045U true CN203712045U (en) | 2014-07-16 |
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ID=51151244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010917.5U Expired - Fee Related CN203712045U (en) | 2014-01-08 | 2014-01-08 | High-frequency arc ignition circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203712045U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737153B (en) * | 2014-01-08 | 2015-10-28 | 无锡汉神电气有限公司 | High-frequency arc ignition circuit |
-
2014
- 2014-01-08 CN CN201420010917.5U patent/CN203712045U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737153B (en) * | 2014-01-08 | 2015-10-28 | 无锡汉神电气有限公司 | High-frequency arc ignition circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160108 |