CN1096975A - A kind of electric welding or TURP cut the high voltage arc generating device in the equipment - Google Patents
A kind of electric welding or TURP cut the high voltage arc generating device in the equipment Download PDFInfo
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- CN1096975A CN1096975A CN 93108119 CN93108119A CN1096975A CN 1096975 A CN1096975 A CN 1096975A CN 93108119 CN93108119 CN 93108119 CN 93108119 A CN93108119 A CN 93108119A CN 1096975 A CN1096975 A CN 1096975A
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Abstract
The present invention is that a kind of and inverter connect the electric welding of use or TURP and cut in the equipment high-pressure electronic arc initiation device in order to the electric arc that ignites.The circuit for producing high voltage of this device adopts n voltage multiplying rectifier technology, and output transformer elementary or secondary that electric welding or TURP cut the contravariant power in the equipment directly taken from its power-supply rectifying source.After the high direct voltage that produces is transformed to the high pressure unidirectional pulse, be coupled to the output that electric welding or TURP cut equipment through coupling transformer, electric arc ignites.This device striking power is low, externally disturbs for a short time, and volume is little, and is in light weight, is highly advantageous to and the matched use of contravariant power.
Description
The present invention is a kind of high-pressure electronic arc initiation device that is used for adopting high frequency (10KHZ and more than) inverter to cut equipment (the following general name welding equipment) electric arc that ignites as the electric welding or the TURP of power supply.
So far, the noncontact arc initiation device in the welding equipment has two kinds with the high pressure producing method, and a kind of is the Industrial Frequency Transformer boost type, and another kind is the high frequency transformer boost type.They connect with high frequency or impulse generator respectively, form arc initiation device.The former structure heaviness, the latter is then complicated.Because all be to adopt transformer to boost, the interference of generation is then all comparatively serious, especially the former.
Purpose of the present invention be that to seek a kind of external interference little, and volume is little, and lightweight arc initiation device is relatively poor and volume is little, lightweight inverter is matched with interference free performance to be adapted to.Wherein, mainly be to solve the high pressure generating technique.
Circuit for producing high voltage of the present invention, adopt n voltage multiplying rectifier technology, and directly provide the commutation supply voltage power supply to the n voltage doubling rectifing circuit by the output pulse square wave at elementary two ends of the output transformer of inverter or secondary two ends, produce n multiplication of voltage high pressure, with impulse generator it is converted in the high pressure unidirectional pulse then, electric arc ignites.
Fig. 1 is an electric principle design drawing of the present invention.
Fig. 2 is the impulse generator figure in the embodiments of the invention.
The present invention is by circuit for producing high voltage A1, input current-limiting resistance R1, the output current limiting resistance R2, control relay J, impulse generator A2, coupling transformer B1, shunt capacitance Ca forms, and relates to the output transformer B of inverter power supply in the former welding equipment2 Circuit for producing high voltage A1Be a kind of n voltage doubling rectifing circuit, it is by the only fast quick-recovery rectification of n or switching diode D1～D
nWith n high frequency capacitance C1～C
nBe formed by connecting by n voltage multiplying rectifier mode. Its n value is looked high-tension ignition voltage With the primary and secondary turn ratio of the elementary or secondary output voltage of the output transformer of inverter and coupling transformer and decide. If the coupling transformer primary and secondary turn ratio is K, voltage transition efficient is η, and high-tension ignition voltage is V2, the inverter output voltage is V1, n=V then2×K/（η×V
1). This circuit for producing high voltage has two input A and B, an output C, and another output can select A, also can select B. One input of circuit for producing high voltage is serially connected with an input current-limiting resistance R1, output C is serially connected with an output current limiting resistance R2，R
1With R2Resistance be 0～10K Ω. Its value size depends primarily on diode D in the voltage doubling rectifing circuit1～D
nRated working current value and shock-resistant current value, this two current value is more big, R1With R2Value can be more little, when enough big, R1With R2In one, its resistance can be zero. Resistance R1With R2Resistance relation be that one of them is only non-vanishing. Circuit for producing high voltage A1The voltage multiplying rectifier power supply take from the output transformer B of the inverter in the welding equipment2Elementary input two ends or secondary output two ends, between control being switched on or switched off of its connecting line by control relay J. Two input E and F of impulse generator, wherein an end and output current limiting resistance R2Be connected, the other end is connected with circuit for producing high voltage one input. The secondary of coupling transformer is serially connected in the welding output loop, and elementary generally is the part of impulse generator, or is connected with the impulse generator output. Reactor L in high-frequency bypass capacitor Ca and the welding equipment connects into high frequency bypass and attenuator circuit, prevents that high-voltage pulse from entering inverter.
The course of work of the present invention is such, and behind the engage relay J, the output transformer of inverter is through input current-limiting resistance R1To circuit for producing high voltage A1, the input pulse power supply is through n voltage multiplying rectifier, resistance R2Current limliting is injected dc high voltage to impulse generator, by impulse generator A2Be transformed to high-voltage pulse, through coupling transformer B1, high-frequency bypass capacitor Ca is coupled to two output Q of welding equipment1With Q2, electric arc ignites. When relay J disconnected, striking stopped.
Embodiment: the inverter condition is, inverter reverse frequency 25KHZ, and output transformer secondary output voltage amplitude is 120V, is approximate pulse square wave.The ignition voltage of setting up an office is 7KV, coupling transformer B
1Voltage transition efficient be 0.7, the primary and secondary turn ratio is 0.5, then n=7000 * 0.5 ÷ (0.7 * 120)=42.Input current-limiting resistance R
1Select 10～100 Ω/2W for use, the output current limiting resistance R
2Select 2K/5W for use, capacitor C
1～C
nSelect noninductive terylen electric capacity for use, diode D
1～D
nSelect 1A/500V for use, be less than rectification or the switching diode of 0.5 μ S reverse recovery time.Shunt capacitance Ca selects noninductive terylen electric capacity for use, 3.3 μ f/250V.Impulse generator can be selected for use by electrion device H, energy storage high-voltage capacitance Cb and coupling transformer B
1The striking discharge type oscillating circuit (seeing accompanying drawing 2) of elementary composition.Wherein, capacitor C b and coupling transformer B
1Elementary serial connection mutually, this sequential circuit and electrion device H are mutually and connect.The two ends that should and connect are two input E and F of high pressure generator.High-voltage capacitance Cb selects the low high voltagehigh frequency ceramic disc capacitor of high-frequency loss, 1500pf/10KV for use.
The circuit for producing high voltage A of present embodiment
1Can be mounted to 12 * 6 * 2cm
3Circuit board, weight less than 150 the gram.Volume has only 1/6 of duplex frequency boostering transformer, and weight has only 1/10.Because the high pressure that produces is a direct current,, help striking again so the pulse of impulse generator output also is unidirectional DC pulse.So striking power can reduce relatively.
The electromagnetic interference that present embodiment produces is low, and it is little to add upper volume, in light weight, helps connecting use with inverter.
Claims (2)
1, a kind of electric welding or TURP cut the high voltage arc generating device in the equipment (following general name welding equipment), it is made up of circuit for producing high voltage A1, input current-limiting resistance R1, output current limiting resistance R 2, control relay J, coupling transformer B1, high-frequency bypass capacitor Ca, impulse generator A2, and relate to the output transformer B2 of the inverter power supply in the former welding equipment, it is characterized in that:
1.1 circuit for producing high voltage A1 is a kind of n voltage doubling rectifing circuit, only quick-recovery rectification or switching diode and n high frequency capacitance are formed by connecting by n voltage multiplying rectifier mode soon by n for it
1.2 the input of circuit for producing high voltage A1 is serially connected with an input current-limiting resistance R1, its resistance is 0～10K Ω
1.3 the output of circuit for producing high voltage A1 is serially connected with an output current limiting resistance R 2, its resistance is 0～10K Ω
1.4 the voltage multiplying rectifier power supply of circuit for producing high voltage A1 is directly taken from elementary input two ends or the secondary output two ends of the output transformer B2 of the inverter in the welding equipment, between control being switched on or switched off of its connecting line by control relay J
1.5 two input E and F of impulse generator, wherein an end is connected with the output current limiting resistance R 2 of circuit for producing high voltage A1, and the other end is connected with the input of circuit for producing high voltage A1
This device course of work is: relay closes, transformer B2 through current-limiting resistance R1 to circuit for producing high voltage A1 input rectifying power supply, after the n multiplication of voltage, inject DC high-voltage power supply to produce high-voltage pulse through output current limiting resistance R 2 to impulse generator A2, this high-voltage pulse is coupled to secondary through coupling transformer B1, add to the welding equipment output through high-frequency bypass capacitor Ca, electric arc ignites.
2, high voltage arc generating device according to claim 1 is characterized in that importing current-limiting resistance R
1With the output current limiting resistance R
2, their resistance relation is that the resistance of one of them resistance is non-vanishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108119 CN1096975A (en) | 1993-07-02 | 1993-07-02 | A kind of electric welding or TURP cut the high voltage arc generating device in the equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108119 CN1096975A (en) | 1993-07-02 | 1993-07-02 | A kind of electric welding or TURP cut the high voltage arc generating device in the equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1096975A true CN1096975A (en) | 1995-01-04 |
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ID=4987010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93108119 Pending CN1096975A (en) | 1993-07-02 | 1993-07-02 | A kind of electric welding or TURP cut the high voltage arc generating device in the equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1096975A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061919C (en) * | 1997-08-06 | 2001-02-14 | 松下电器产业株式会社 | Arc start ancillary apparatus |
| CN1076242C (en) * | 1995-12-20 | 2001-12-19 | 宫地技术株式会社 | Transformer for antiphase resistance welder |
| CN1886225B (en) * | 2003-11-25 | 2010-10-06 | 弗罗纽斯国际有限公司 | Method and circuit for contactless ignition of a welding arc with high frequency ignition pulse packets |
| 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 |
| CN103997252A (en) * | 2014-05-13 | 2014-08-20 | 重庆大学 | High-frequency and high-voltage pulse generation 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 |
| CN111390345A (en) * | 2020-03-10 | 2020-07-10 | 广州亦高电气设备有限公司 | High-voltage discharge equipment of welding device |
-
1993
- 1993-07-02 CN CN 93108119 patent/CN1096975A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076242C (en) * | 1995-12-20 | 2001-12-19 | 宫地技术株式会社 | Transformer for antiphase resistance welder |
| CN1061919C (en) * | 1997-08-06 | 2001-02-14 | 松下电器产业株式会社 | Arc start ancillary apparatus |
| CN1886225B (en) * | 2003-11-25 | 2010-10-06 | 弗罗纽斯国际有限公司 | Method and circuit for contactless ignition of a welding arc with high frequency ignition pulse packets |
| 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 |
| CN103997252A (en) * | 2014-05-13 | 2014-08-20 | 重庆大学 | High-frequency and high-voltage pulse generation 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 |
| CN111390345A (en) * | 2020-03-10 | 2020-07-10 | 广州亦高电气设备有限公司 | High-voltage discharge equipment of welding device |
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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 |