CN2281862Y - Three phase direct current arc welder - Google Patents
Three phase direct current arc welder Download PDFInfo
- Publication number
- CN2281862Y CN2281862Y CN 95216870 CN95216870U CN2281862Y CN 2281862 Y CN2281862 Y CN 2281862Y CN 95216870 CN95216870 CN 95216870 CN 95216870 U CN95216870 U CN 95216870U CN 2281862 Y CN2281862 Y CN 2281862Y
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- phase
- arc
- welding machine
- rectifier
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Abstract
The utility model relates to a three-phase direct current arc welder, which is composed of a rectifier transformer, a reactor, a filter inductance, a capacitor, a diode, a controlled silicon and a trigger control circuit. The utility model is characterized in that at least one rectifier welder with a three-phase core with five posts is arranged in the three-phase direct current arc welder; at least one rectifying transformer with the three-phase core with five posts is arranged in a rectifier welder; or, at least one arc strike device of voltage doubling composed of a plurality of capacitors and a plurality of diodes is arranged in the three-phase direct current arc welder; or the arc strike device of voltage doubling and the rectifier welder with a three-phase core with five posts are arranged. The utility model has the advantages of easy arc striking, high power factor and efficiency, energy saving, material saving, lower cost, etc.
Description
The utility model belongs to the three-phase dc arc-welding machine, relates to the high-voltage arc strike circuit and the rectifier transformer core structure form of dc source in the DC arc welder.
Existing three-phase dc arc-welding machine has three-phase bridge and six half-wave two big classes mutually by secondary rectification circuit branch, three-phase bridge is divided into three-phase bridge rectification again, three types of three-phase half controlled bridge and three-phase full-controlled bridges, six phase half-waves be divided into again the band paralleing reactor and not with two classes of paralleing reactor, six phase half-waves of band paralleing reactor are commonly referred to the double reverse-stars type of band paralleing reactor, and six phase half-waves with paralleing reactor just do not abbreviate six phase half-waves as.So six phase half-wave arc-welding machines have six phase half-wave rectifications, the rectification of band paralleing reactor double reverse-stars type, four types of the double reverse-stars type controlled rectifications of six phase half-wave controlled rectifications and band paralleing reactor.Three-phase rectifier transformer in above-mentioned all seven types of three-phase dc arc-welding machines all is to use three-phase three-column core formula at present, and not seeing as yet in the field of three-phase dc arc-welding machine has the design of the three-phase and five-pole of use core iron core to produce six phase half-wave rectifications and controlled whole arc stream welding machine.In arc-welding machine, use the additional high-pressure arc initiation device can improve the striking ability of welding machine, reduce the voltage of transformer secondary output main coil, improve power factor, transformation ratio and efficient, but the acquisition of existing high-voltage arc strike DC voltage all will increase Transformer Winding and striking current-limiting resistance, it manufactures and designs to rectifier transformer increases multiple assorted property and difficulty on technology, particularly adopt the rectifier transformer of six phase half-wave rectification welding machines of disc type winding, can increase Transformer Winding and striking current-limiting resistance, on the secondary main winding of rectifier transformer, directly obtain required high-voltage arc strike voltage?
The 1st purpose of the present utility model is to replace secondary employing six phase half-wave rectifications and the interior three-phase three-column core transformer of controlled rectification DC arc welder with three-phase and five-pole core rectifier transformer.
The 2nd purpose of the present utility model is the heterogeneous voltage doubling rectifing circuit of forming with electric capacity and diode, directly obtains the required striking voltage of high voltage arc generating device on the secondary main winding of rectifier transformer.
Obviously can realize simultaneously that above-mentioned two purposes are preferred embodiment of the utility model.
The utility model three-phase dc arc-welding machine is by three-phase rectifier transformer, reactor, filter inductance, electric capacity, commutation diode, silicon controlled rectifier device and trigger control circuit thereof are formed, it is characterized in that including in the three-phase dc arc-welding machine: 1 three-phase and five-pole core rectifier transformer, or 1 heterogeneous multiplication of voltage arc initiation device of forming by a plurality of electric capacity and a plurality of diode, perhaps existing 1 three-phase and five-pole core rectifier transformer, the heterogeneous multiplication of voltage arc initiation device of forming by electric capacity and diode again.
The utility model is used for the three-phase and five-pole core rectifier transformer of secondary six phase half-wave rectifications and controlled rectification arc-welding machine, and its architectural feature is respectively to have in three-phase three-column core rectifier transformer both sides the iron core column of three the post cores in little dried centre, 1 cross section.
The utility model be used for various secondary six phase half-wave rectifications and controlled rectification (comprising the band paralleing reactor) arc-welding machine the multiplication of voltage arc initiation device it form by 6 electric capacity and 12 diodes, it has 7 ac input ends and 2 dc output ends, 12 diodes are connected into six phase bridge rectifiers, 6 diode cathode tie points are multiplication of voltage arc initiation device output plus terminal, be external to the Arc Welding Power anode, 6 diode anode tie points are multiplication of voltage arc initiation device output negative terminal, be external to the negative terminal of arc welding rectifier, 6 ac input ends of the 1st termination six phase bridge rectifiers of 6 electric capacity, 6 end external rectifier transformers secondary six in addition of these 6 electric capacity are exported main winding mutually, and secondary six common ports of exporting mutually are connected with the output plus terminal or the negative terminal of voltage-multiplying circuit arc initiation device.Multiplication of voltage arc ignition circuit maximum output current is determined that by electric capacity and diode capacity capacitance is generally selected 100～500 μ l, and diode selects 5～10 peaces.
The utility model is used for the multiplication of voltage arc initiation device of various three-phase bridge rectifications and controlled rectification arc-welding machine, and it is made up of 4 electric capacity and 8 diodes.It has 3 ac input ends and 2 dc output ends, and 4 diodes and 4 electric capacity are connected into two groups of single-phase full wave voltage doubling rectifing circuits.Other 2 diode cathode ends link to each other, be external to the Arc Welding Rectifier anode, their 2 anode taps divide in addition contacts mutually with two groups of single-phase full wave voltage-multiplying circuit anodes, all the other 2 diode anode ends link to each other, be external to the Arc Welding Rectifier negative terminal, their 2 negative electrodes are contacted mutually with 2 single-phase full wave voltage-multiplying circuit negative terminals respectively, the secondary three-phase alternating-current supply of rectifier transformer be connected two groups be in series a little by 2 electric capacity and 4 diode points of common connection on
Replace three-phase three-column core rectifier transformer in common six phase half-wave rectifications and the controlled rectification electric welding machine with three-phase and five-pole core rectifier transformer, device and secondary windings current lead-through angle can be brought up to the level of being with the paralleing reactor double reverse-stars type, thereby this practicality newly with six mutually half-wave circuit compare, have transformer secondary output winding and devices use rate height, transformer capacity is little, the advantage that power factor and efficient are high, it is compared with band paralleing reactor double reverse-stars type circuit, can save 1 paralleing reactor (in fact paralleing reactor having been transferred on two post cores in both sides of five post core transformers), thereby have circuit structure and frame for movement and simplify, advantages such as cost is low, and is reliable.
With the multiplication of voltage arc initiation device that electric capacity and diode are formed, can improve the striking ability, to reduce rectifier transformer secondary around step voltage, increase transformation ratio, improve arc-welding machine power factor and efficient, reduce cost.It is compared with other direct current arc initiation device because the utility model arc initiation device do not need to increase transformer striking winding and striking current-limiting resistance, therefore have simple in structure, efficient height, advantage such as reliable operation and loss are little.
Description of drawings: 1, three-phase and five-pole core transformer iron core.2, three-phase alternating current input terminal.3, the secondary six phase outlet terminals of three-phase transformer.4, six phase half-wave multiplication of voltage arc initiation devices.5, three-phase bridge multiplication of voltage arc initiation device.6, six phase half-wave thyristor rectifier assemblies.7, controllable silicon triggers controller.8, three-phase arc welding power supply direct current outlet terminal.9, three-phase three-column core transformer iron core.10, paralleing reactor.11, filter reactor.12, six-phase half wave rectifier assembly.13, three-phase alternating current silicon-controlled voltage regulation device assembly.14, three-phase bridge rectifier assembly.15, three-phase full-controlled bridge silicon controlled rectifier (SCR) assembly.16, magnetic saturation reactor.
Accompanying drawing 1 illustrates the 1st feature of the utility model: (a) three-phase and five-pole core rectifier transformer structure chart.(b) three-phase and five-pole core rectifier transformer cut-away drawing.
Accompanying drawing 3 is to use one of embodiment circuit diagram of the utility model Fig. 2 (a) feature.
Accompanying drawing 4 be to use the utility model Fig. 2 (a) feature the embodiment circuit diagram two.
Accompanying drawing 5 is to use one of most preferred embodiment circuit diagram of the utility model Fig. 1 and Fig. 2 (a) feature.
Accompanying drawing 6 is to use one of enforcement lateral circuit figure of the utility model Fig. 1 feature.
Accompanying drawing 7 be use simultaneously the utility model Fig. 1 and Fig. 2 (a) feature the most preferred embodiment circuit diagram two.
Accompanying drawing 8 is to use one of embodiment circuit diagram of the utility model Fig. 2 (b) feature.
Accompanying drawing 9 be to use the utility model Fig. 2 (b) feature the embodiment circuit diagram two.
Claims (6)
1, a kind of three-phase dc arc-welding machine, it is made up of three-phase rectifier transformer, reactor, filter inductance, electric capacity, diode and controllable silicon and triggering controller etc. thereof, it is characterized in that having at least in the three-phase dc arc-welding machine;
(a): 1 three-phase and five-pole core rectifier transformer.
(b): 1 heterogeneous multiplication of voltage arc initiation device of forming by a plurality of electric capacity and a plurality of diode.
2, three-phase dc arc-welding machine according to claim 1 is characterized in that having in the welding machine 1 three-phase and five-pole core rectifier transformer.
3, three-phase dc arc-welding machine according to claim 1 is characterized in that having in the welding machine 1 heterogeneous multiplication of voltage arc initiation device.
4, three-phase dc arc-welding machine according to claim 3 is characterized in that it is by 1 six half-wave multiplication of voltage arc initiation device of being made up of 6 electric capacity and 12 diodes mutually.
5, three-phase dc arc-welding machine according to claim 3, it is characterized in that it by 1 by 4 electric capacity and 8 three-phase full-wave multiplication of voltage arc initiation devices that diode is formed.
6, three-phase dc arc-welding machine according to claim 1 is characterized in that having in the welding machine 1 three-phase and five-pole core rectifier transformer and 1 six half-wave multiplication of voltage arc initiation device mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216870 CN2281862Y (en) | 1995-09-28 | 1995-09-28 | Three phase direct current arc welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216870 CN2281862Y (en) | 1995-09-28 | 1995-09-28 | Three phase direct current arc welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2281862Y true CN2281862Y (en) | 1998-05-20 |
Family
ID=33865835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95216870 Expired - Fee Related CN2281862Y (en) | 1995-09-28 | 1995-09-28 | Three phase direct current arc welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2281862Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391332B (en) * | 2008-05-29 | 2011-05-04 | 龚秋声 | Direct current arc welder |
| CN103916029A (en) * | 2014-03-11 | 2014-07-09 | 龚秋声 | Three-phase fully-controlled bridge rectifying circuit with five-stem center point provided with subsequent flow tube |
| CN104242694A (en) * | 2013-06-22 | 2014-12-24 | 龚秋声 | Three-phase full-controlled bridge rectifier circuit with balance reactor |
-
1995
- 1995-09-28 CN CN 95216870 patent/CN2281862Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391332B (en) * | 2008-05-29 | 2011-05-04 | 龚秋声 | Direct current arc welder |
| CN104242694A (en) * | 2013-06-22 | 2014-12-24 | 龚秋声 | Three-phase full-controlled bridge rectifier circuit with balance reactor |
| CN104242694B (en) * | 2013-06-22 | 2017-03-29 | 龚秋声 | Three-phase full-bridge controlled rectifier with paralleing reactor |
| CN103916029A (en) * | 2014-03-11 | 2014-07-09 | 龚秋声 | Three-phase fully-controlled bridge rectifying circuit with five-stem center point provided with subsequent flow tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |