CN201815774U - Arc stabilizing circuit of alternating-current square-wave welding power source - Google Patents
Arc stabilizing circuit of alternating-current square-wave welding power source Download PDFInfo
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- CN201815774U CN201815774U CN2010201655690U CN201020165569U CN201815774U CN 201815774 U CN201815774 U CN 201815774U CN 2010201655690 U CN2010201655690 U CN 2010201655690U CN 201020165569 U CN201020165569 U CN 201020165569U CN 201815774 U CN201815774 U CN 201815774U
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Abstract
The utility model discloses an arc stabilizing circuit of an alternating-current square-wave welding power source, which comprises a rectification circuit and a secondary inverter half-bridge circuit. A filter inductor is arranged between the rectification circuit and the secondary inverter half-bridge circuit and comprises two windings which are arranged on one iron core and have requirements of corresponding terminals. By using the circuit disclosed by the utility model, the arc stabilizing circuit of the secondary inverter half-bridge circuit is simplified, the electric arc is more stable and the energy for restarting the arc can be increased.
Description
Technical field
The utility model relates to welding, particularly the ac square wave source of welding current arc static circuit in the welding machine.
Background technology
During welding,, must use A.C. welder owing to require the negative electrode atomizing to remove oxide-film.And traditional power frequency sine wave electric welding machine, the electric current of output is sinusoidal wave, the electric current rate of climb is slow when polarity is changed, and, must adopt arc stabilizer or require welding machine to have high floating voltage could guarantee the smooth combustion of alternating current arc by just becoming negative moment electric arc resume combustion difficulty at workpiece.The existence of arc stabilizer makes the circuit complexity in the welding machine, and cost improves, and is easy to generate High-frequency Interference; And floating voltage is too high, and is dangerous to operating personnel.The output of general electric welding machine all is provided with filter inductance, and way is, as shown in Figure 1, adopt in the mode of half-bridge circuit in the secondary inversion, filter inductance is done when exchanging commutation after the secondary inversion like this, and energy stored can stop igniting again of commutation back electric arc on the inductance.
The utility model content
The purpose of this utility model is in order a kind of ac square wave source of welding current arc static circuit to be provided, to utilize circuit of the present utility model, simplified the arc static circuit of secondary inversion half-bridge circuit, and electric arc being more stable, can increase the energy of striking once more.
For achieving the above object, ac square wave source of welding current arc static circuit comprises rectification circuit, secondary inversion half-bridge circuit; Be provided with filter inductance between described rectification circuit and the secondary inversion half-bridge circuit, described filter inductance is included in two windings that end requirement of the same name is arranged on the iron core.
Foregoing circuit, compared with prior art, filter inductance becomes two windings on same iron core by a winding, and end requirement of the same name is arranged, the on-position of filter inductance changes into behind the rectification circuit by output and between the secondary inversion half-bridge circuit, the filter inductance energy stored just can be delivered to another winding from the winding that electric current flow through originally when alternating current commutated like this, become the energy that helps arc re-ignition, do not need adjunct circuit to make welding arc stablility yet, therefore, simplified the arc static circuit of secondary inversion half-bridge circuit.
Description of drawings
Fig. 1 is prior art ac square wave source of welding current arc static circuit figure;
Fig. 2 is the utility model ac square wave source of welding current arc static circuit figure.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Ac square wave source of welding current arc static circuit as shown in Figure 2 comprises rectification circuit 1, secondary inversion half-bridge circuit 2; Be connected with filter inductance 3 between described rectification circuit 1 and the secondary inversion half-bridge circuit 2, described filter inductance is included in two windings that end requirement of the same name is arranged on the iron core.
The utility model circuit, compared with prior art, filter inductance becomes two windings on same iron core by a winding, and end requirement of the same name is arranged, the on-position of filter inductance changes into behind the rectification circuit by output and between the secondary inversion half-bridge circuit, the filter inductance energy stored just can be delivered to another winding from the winding that electric current flow through originally when alternating current commutated like this, become the energy that helps arc re-ignition, do not need adjunct circuit to make welding arc stablility yet, therefore, simplified the arc static circuit of secondary inversion half-bridge circuit.
In sum, the utility model ac square wave source of welding current arc static circuit can simplify the arc static circuit of secondary inversion half-bridge circuit, and electric arc is more stable, can increase the energy of striking once more when implementing.
Above embodiment is preferred embodiment of the present utility model only, is not in order to limit the scope that the utility model is implemented; So done equivalence or variation person easily when haveing the knack of this skill, as mentioned above, change and modification not breaking away from the equalization of being done under spirit of the present utility model and the scope, all should be covered by in the claim of the present utility model, close first Chen Ming.
Claims (1)
1. ac square wave source of welding current arc static circuit comprises rectification circuit, secondary inversion half-bridge circuit; It is characterized in that: be provided with filter inductance between described rectification circuit and the secondary inversion half-bridge circuit, described filter inductance is included in two windings that end requirement of the same name is arranged on the iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201655690U CN201815774U (en) | 2010-04-16 | 2010-04-16 | Arc stabilizing circuit of alternating-current square-wave welding power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201655690U CN201815774U (en) | 2010-04-16 | 2010-04-16 | Arc stabilizing circuit of alternating-current square-wave welding power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815774U true CN201815774U (en) | 2011-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201655690U Expired - Lifetime CN201815774U (en) | 2010-04-16 | 2010-04-16 | Arc stabilizing circuit of alternating-current square-wave welding power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201815774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191067A (en) * | 2014-08-12 | 2014-12-10 | 河南机电高等专科学校 | Underwater arc double-arc stable switch control system |
-
2010
- 2010-04-16 CN CN2010201655690U patent/CN201815774U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191067A (en) * | 2014-08-12 | 2014-12-10 | 河南机电高等专科学校 | Underwater arc double-arc stable switch control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Pingshan Qing Lan Shenzhen Guangdong province 518000 City Road No. 3 Patentee after: Shenzhen Jasic Technology Co., Ltd. Address before: 518000, Guangdong, Baoan District, Xixiang province Shenzhen Street Hengfeng Industrial City C2 Building 1, 2, 3, 4, West and 5, West and C4, building 5 Patentee before: Shenzhen Jasic Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |