CN102513652A - DC welding machine - Google Patents
DC welding machine Download PDFInfo
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- CN102513652A CN102513652A CN201110400220XA CN201110400220A CN102513652A CN 102513652 A CN102513652 A CN 102513652A CN 201110400220X A CN201110400220X A CN 201110400220XA CN 201110400220 A CN201110400220 A CN 201110400220A CN 102513652 A CN102513652 A CN 102513652A
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- circuit
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- inverter
- input
- welding machine
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Abstract
The invention discloses a light and handy DC welding machine capable of increasing energy conversion efficiency. The light and handy DC welding machine comprises an AC input circuit and a DC output circuit, wherein an input rectifier circuit, an inverter circuit and an output rectifier circuit are sequentially connected in series between the AC input circuit and the DC output circuit, and an output feedback circuit and an inverter control circuit are sequentially connected in series between the DC output circuit and the inverter circuit. According to the invention, the input rectifier circuit, the inverter circuit and the output rectifier circuit are sequentially connected in series between the AC input circuit and the DC output circuit, and the original power frequency transformer is omitted, therefore, the weight of the whole welding machine is reduced, and the energy conversion efficiency is increased; and the output feedback circuit and the inverter control circuit are sequentially connected in series between the DC output circuit and the inverter circuit, so that the output voltage is more stable, and the welding quality can be ensured.
Description
Technical field
The present invention relates to electric welding machine, refer more particularly to dc welding machine.
Background technology
At present, traditional dc welding machine because employing is Industrial Frequency Transformer, make whole dc welding machine very heavy, and energy conversion efficiency is also lower.In actual use, the fluctuation of AC-input voltage causes the fluctuation of output voltage, thus the welding quality of having influence on.
Summary of the invention
Technical problem to be solved by this invention is: a kind of dc welding machine that lightly, also can improve energy conversion efficiency is provided.
For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: dc welding machine; Comprise: ac input circuit and dc output circuit; Be serially connected with input rectification circuit, inverter circuit and output rectification circuit between ac input circuit and the dc output circuit successively, be serially connected with output feedback circuit and inverter control circuit between dc output circuit and the inverter circuit successively.
Be serially connected with buffer circuit between described inverter circuit and the output rectification circuit.
Described buffer circuit is a transformer.
The invention has the beneficial effects as follows: the present invention is through be serially connected with input rectification circuit, inverter circuit and the output rectification circuit between ac input circuit and dc output circuit successively; Cancelled original Industrial Frequency Transformer; Alleviate the weight of whole electric welding machine, improved energy conversion efficiency; And string is located at output feedback circuit and the inverter control circuit between dc output circuit and the inverter circuit successively, can guarantee the quality of welding so that output voltage is more stable.
Description of drawings
Fig. 1 is an electric theory structure sketch map of the present invention.
Among the figure: 1, ac input circuit, 2, dc output circuit, 3, input rectification circuit, 4, inverter circuit, 5, output rectification circuit, 6, the output feedback circuit, 7, inverter control circuit, 8, buffer circuit.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1; Dc welding machine of the present invention; Comprise: ac input circuit 1 and dc output circuit 2; Be serially connected with input rectification circuit 3, inverter circuit 4 and output rectification circuit 5 between ac input circuit 1 and the dc output circuit 2 successively, be serially connected with output feedback circuit 6 and inverter control circuit 7 between dc output circuit 2 and the inverter circuit 4 successively; In the present embodiment, be serially connected with transformer as buffer circuit 8 between described inverter circuit 4 and the output rectification circuit 5.
Claims (3)
1. dc welding machine; Comprise: ac input circuit and dc output circuit; It is characterized in that: be serially connected with input rectification circuit, inverter circuit and output rectification circuit between described ac input circuit and the dc output circuit successively, be serially connected with output feedback circuit and inverter control circuit between dc output circuit and the inverter circuit successively.
2. dc welding machine as claimed in claim 1 is characterized in that: be serially connected with buffer circuit between described inverter circuit and the output rectification circuit.
3. dc welding machine as claimed in claim 2 is characterized in that: described buffer circuit is a transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110400220XA CN102513652A (en) | 2011-12-06 | 2011-12-06 | DC welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110400220XA CN102513652A (en) | 2011-12-06 | 2011-12-06 | DC welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102513652A true CN102513652A (en) | 2012-06-27 |
Family
ID=46284862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110400220XA Pending CN102513652A (en) | 2011-12-06 | 2011-12-06 | DC welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102513652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773585A (en) * | 2012-08-10 | 2012-11-14 | 深圳市瑞凌实业股份有限公司 | Circuit for reducing high frequency and high pressure of argon arc welding and method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734556A (en) * | 1986-10-18 | 1988-03-29 | Miyachi Electronic Company | Inverter type DC resistance welding machine |
| CN1105307A (en) * | 1993-10-25 | 1995-07-19 | 株式会社三社电机制作所 | Consumable electrode D.C. ARC welder |
| JPH0985458A (en) * | 1995-09-20 | 1997-03-31 | Miyachi Technos Corp | Inverter controlled resistance welding machine |
| JP2001105155A (en) * | 1999-10-01 | 2001-04-17 | Dengensha Mfg Co Ltd | Inverter ac resistance welding method and controller |
| CN201143590Y (en) * | 2006-11-30 | 2008-11-05 | 曹再华 | Inversion welding source |
| CN202317380U (en) * | 2011-12-06 | 2012-07-11 | 张家港市紫光电焊机有限公司 | Direct-current (DC) electric welding machine |
-
2011
- 2011-12-06 CN CN201110400220XA patent/CN102513652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734556A (en) * | 1986-10-18 | 1988-03-29 | Miyachi Electronic Company | Inverter type DC resistance welding machine |
| CN1105307A (en) * | 1993-10-25 | 1995-07-19 | 株式会社三社电机制作所 | Consumable electrode D.C. ARC welder |
| JPH0985458A (en) * | 1995-09-20 | 1997-03-31 | Miyachi Technos Corp | Inverter controlled resistance welding machine |
| JP2001105155A (en) * | 1999-10-01 | 2001-04-17 | Dengensha Mfg Co Ltd | Inverter ac resistance welding method and controller |
| CN201143590Y (en) * | 2006-11-30 | 2008-11-05 | 曹再华 | Inversion welding source |
| CN202317380U (en) * | 2011-12-06 | 2012-07-11 | 张家港市紫光电焊机有限公司 | Direct-current (DC) electric welding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773585A (en) * | 2012-08-10 | 2012-11-14 | 深圳市瑞凌实业股份有限公司 | Circuit for reducing high frequency and high pressure of argon arc welding and method thereof |
| CN102773585B (en) * | 2012-08-10 | 2016-08-17 | 深圳市瑞凌实业股份有限公司 | A kind of circuit reducing argon arc welding high-frequency and high-voltage and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |