CN2190341Y - Transformer for arc welding - Google Patents
Transformer for arc welding Download PDFInfo
- Publication number
- CN2190341Y CN2190341Y CN 94227148 CN94227148U CN2190341Y CN 2190341 Y CN2190341 Y CN 2190341Y CN 94227148 CN94227148 CN 94227148 CN 94227148 U CN94227148 U CN 94227148U CN 2190341 Y CN2190341 Y CN 2190341Y
- Authority
- CN
- China
- Prior art keywords
- stem
- arc welding
- transformer
- winding
- welding transformer
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Arc Welding Control (AREA)
Abstract
The utility model relates to a no ' reverse series turn ' transformer for arc welding, which is in a tap type. The utility model is characterized in that most part of a primary winding is arranged on a core column at the left side of a transformer, the small part of the primary winding and a secondary winding are arranged on a core column at the right side of the transformer. The primary windings arranged on the both sides of the core columns are equally provided with taps to match with a connection line with a multiple gear switch and additionally provided with a magnetic shunt at the middle part of the connection line in order to obtain the dropping still external characteristic of a constant current, and the requirements of welding processes can be met. The problems of multiple work pieces of a moving iron core, complicated structure and high cost can be overcome, a reverse series turn winding in a tap type can be omitted, expensive copper wires can be saved by 1/5, and the utility model has obvious economical and social benefits for producing portable arc welding transformers which have large amount and wide applications.
Description
The utility model belongs to field of welding devices.
Along with development and national economy, every profession and trade has proposed different requirements to electric welding machine, and hand ac arc welding machine also claims arc welding transformer, is to use electric welding machine the most widely.For obtaining to be fit to the quiet external characteristic of the needed decline of welding procedure near constant current, various methods have often been taked, " electric welding machine standard compilation " p14.1989 of China electric welding machine technical committee for standardization (TCST) and Chengdu electric welding machine research institute of mechano-electronic portion compilation, arc welding transformer is divided into: (1) magnetic amplifier saturable reactor formula, (2) moving iron core formula, (3) series reactance formula; (4) moving-coil type, (5) thyristor type and (6) conversion tapped (GB10249-88).For the portable arc welding transformer that has a large capacity and a wide range, moving iron core formula of many employings or conversion are tapped, " trend of AC arc welding power source " " electric welding machine " p18.5 that cold golden thread is write, 1993 existing reports.Although the relative alternate manner of this dual mode has the more advantage that is suitable for making the Portable AC arc welder, but still its intrinsic shortcoming that is difficult to overcome arranged: tapped owing to adopt " splitting circle " to change former, as to pay limit no-load voltage ratio so that regulate the welding current of output, adopt " circle of playing a reversed role " promptly to set up the number of turn of some forward coilings and reverse coiling at former limit winding, and be together in series to increase the leakage reactance of winding, obtain the quiet external characteristic of decline, thereby the normal Transformer Winding of umber of turn will increase closely 25%, also just increased the copper cash of 1/4 costliness; Adopt moving iron core formula will lean on mobile magnetic shunt iron core to regulate the welding current of leakage reactance and output, therefore, workpiece is many, the structure relative complex, and the quite high precision of processing request of especially moving iron core, time-consuming, the manufacturing cost height.
The purpose of this utility model is to increase many and high, the baroque deficiency of precision of the workpiece of nearly 25% expensive copper cash and moving iron core formula and provide a kind of nothing " circle of playing a reversed role " tapped arc welding transformer at the tapped winding of conversion of the prior art, be characterized in utilizing left and right sides iron core column sectional area unequal, a fixing magnetic shunt is set up in the centre, regulate the tap position of elementary winding, change the degree of coupling of primary and secondary winding, thereby obtain variable leakage reactance, make arc welding transformer have the quiet external characteristic of decline, satisfy the needs of welding procedure.
The nothing that the utility model provides " circle of playing a reversed role " tapped arc welding transformer such as Fig. 1 are shown in Figure 2.
Fig. 1 is not for there being " circle of playing a reversed role " tapped arc welding transformer structural representation.
(1) left side stem stem, (2) left winding (elementary), (3) are magnetic shunt fixedly, (4) right winding (elementary), (5) right side stem stem, (6) right winding (secondary).
Fig. 2 is not for there being " circle of playing a reversed role " tapped arc welding transformer wiring schematic diagram
(7) multi-gear switch
The armature winding major part (2) of not having " circle of playing a reversed role " tapped arc welding transformer is located at transformer left side stem stem (1), little part armature winding (4) is located at right side stem stem (5) altogether with secondary windings (6), the armature winding of both sides stem stem is all established tap, the quiet external characteristics of decline that the fixedly magnetic shunt path of setting up in the middle of cooperating and multi-gear switch (7) connection line just can obtain constant current is according to formula: U=4.44N
1BS
1×10
－8, U is original edge voltage,
Be former side frequency, N1Be the former limit number of turn, B is that iron core magnetic is close, S1Be former limit stem stem sectional area, S2For paying limit stem stem sectional area, select S2＝75～95％S
1，S
3For fixedly the magnetic shunt path core section is long-pending, select S3＝5－20％S
1。
The connection line that does not have " circle of playing a reversed role " tapped arc welding transformer, the input of former limit connects power supply, pay limit output and connect electrode holders and workpiece, utilize armature winding and the secondary windings coupling of right side stem stem very tight, the coupling of the elementary and secondary windings of left side stem stem is relatively poor, the position that changes multi-gear switch (7) has just changed the ratio of armature winding on the left and right side stem stem in the input voltage loop, former limit Thereby changed the degree of coupling of primary and secondary winding, reached the purpose of regulation output electric current.
The utlity model has following advantage:
1, compare with the moving iron core formula arc welding transformer of prior art, saved adjustable moving iron core partly, it is many to have exempted workpiece, the shortcoming that complex structure and cost are high.
2, compare with the tapped arc welding transformer of the conversion of prior art, saved " circle of playing a reversed role " winding, saved expensive copper cash greatly, for example B
x 6-200 arc welding transformers, former every needs with 13.5 kilograms of copper cash, only needs now to save copper cash about 18.5% with 11 kilograms.
3, portable arc welding transformer is a kind of industrial products that have a large capacity and a wide range, family's electric welding machine factory surplus the area, Chengdu has 10, the whole nation is more than 100 families, and big factory produces per year more than ten thousand, and little factory also produces thousand per year and has a surplus, conservative estimation whole nation annual production is 200,000, save 2 kilograms for every, can save 400 tons of copper cash every year, be worth more than 1,000 ten thousand yuan, therefore, the utility model has remarkable economic efficiency and social benefit.
Embodiment:
The tapped arc welding transformer of nothing of the present utility model " circle of playing a reversed role " is simple in structure, easily manufactured, the sectional area of iron core and copper cash can calculate by formula and select, in general transformer production factory or the processing and manufacturing of electric welding machine factory, other electric elements and connector all can be bought in the shop, those skilled in the art can be pressed drawing assembling, debugging and ordinary production.
Claims (2)
1, a kind of nothing " circle of playing a reversed role " tapped arc welding transformer [1], contain winding and stem stem, the elementary winding major part (2) that it is characterized in that this arc welding transformer is located at transformer left side stem stem (1), the elementary winding of little part (4) is located at right side stem stem (5) altogether with secondary winding (6), the elementary winding of both sides stem stem is all established tap, set up fixedly magnetic shunt and multi-gear switch (7) connection line in the middle of cooperating and just can obtain the quiet external characteristic of decline of constant current, according to formula: U=4.44fN
1BS
1* 10
-8, U is an original edge voltage, f is former side frequency, N
1Be the former limit number of turn, B is that iron core magnetic is close, S
1Be former limit stem stem sectional area, S
2For paying limit stem stem sectional area, select S
2=75～95%S
1, S
3For fixedly the magnetic shunt core section is long-pending, select S
3=5～20%S
1
2, according to the tapped arc welding transformer of the described nothing of claim 1 " circle of playing a reversed role ", the connection line that it is characterized in that this arc welding transformer, the input of former limit connects power supply, pay limit output and connect electrode holders and workpiece, the position that changes multi-gear switch (7) has just changed the ratio of elementary winding on the left and right side stem stem in the input voltage loop, former limit, thereby changed the degree of coupling of primary and secondary winding, reached the purpose (2) of regulating output current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227148 CN2190341Y (en) | 1994-02-01 | 1994-02-01 | Transformer for arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227148 CN2190341Y (en) | 1994-02-01 | 1994-02-01 | Transformer for arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2190341Y true CN2190341Y (en) | 1995-02-22 |
Family
ID=33839949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94227148 Expired - Fee Related CN2190341Y (en) | 1994-02-01 | 1994-02-01 | Transformer for arc welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2190341Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592782A (en) * | 2012-03-14 | 2012-07-18 | 北京七星飞行电子有限公司 | Choking coil and manufacture method thereof |
-
1994
- 1994-02-01 CN CN 94227148 patent/CN2190341Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592782A (en) * | 2012-03-14 | 2012-07-18 | 北京七星飞行电子有限公司 | Choking coil and manufacture method thereof |
| CN102592782B (en) * | 2012-03-14 | 2013-09-25 | 北京七星飞行电子有限公司 | Choking coil and manufacture method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2190341Y (en) | Transformer for arc welding | |
| CN202019199U (en) | Magnetic control reactor combined by windings wound in different directions | |
| CN201332008Y (en) | Amorphous alloy on-load variac | |
| CN100403463C (en) | Method of increasing electric appliance power factor | |
| CN201859771U (en) | High-multiplying-power composite transformation ratio current transformer | |
| CN1043744C (en) | Three phases sysmetrical taps rectifying are welder | |
| CN88200403U (en) | Three-phase stepless voltage regulator | |
| CN1074210C (en) | Magnetic differential induction voltage regulator and its constituent voltage-regulating power supply and power factor compensator | |
| CN213070888U (en) | Step-down transformer with compensation type zero setting line tap | |
| CN200998805Y (en) | Energy-saving highly-effective alternating current energy arc welder | |
| CN220933877U (en) | Three-dimensional roll iron core transformer of dedicated triangle of new forms of energy | |
| CN218826569U (en) | Structural transformer for transforming and limiting cold-state short-circuit current | |
| CN213459393U (en) | Rectifier transformer for graphitizing furnace | |
| CN201332007Y (en) | Amorphous alloy on-load voltage regulation transformer | |
| CN2184941Y (en) | Step-by-step ac voltage-stabilized source | |
| CN2369335Y (en) | A. C. welder | |
| CN2151834Y (en) | Moving coil iron core current regulation type rectified arc welder | |
| CN2381430Y (en) | Multifunctional D. C. arc welder | |
| CN2368142Y (en) | Magnetic differential inductive voltage regulator | |
| CN2256554Y (en) | Double carbon brush compensating ac. voltage stabilizer | |
| CN2044747U (en) | Current regulating ac power supply with controllable amplitude modulation | |
| CN2212252Y (en) | Three phase magnetic saturation shunt circuit magnetic voltage regulator | |
| CN2301780Y (en) | Energy-saving ring core welder | |
| CN1159738C (en) | Power supply system for arc welding | |
| CN2459131Y (en) | Circular dc electric welding machine |
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 |