CN204122900U - A kind of with the strong IGBT inverter type welder inhaling circuit - Google Patents
A kind of with the strong IGBT inverter type welder inhaling circuit Download PDFInfo
- Publication number
- CN204122900U CN204122900U CN201420409645.6U CN201420409645U CN204122900U CN 204122900 U CN204122900 U CN 204122900U CN 201420409645 U CN201420409645 U CN 201420409645U CN 204122900 U CN204122900 U CN 204122900U
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- igbt inverter
- strong
- inverter type
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- Generation Of Surge Voltage And Current (AREA)
Abstract
The utility model discloses a kind of with the strong IGBT inverter type welder inhaling circuit, comprise main circuit module, control module and power supply, described control module is also provided with the last one and inhales circuit, described strong suction circuit comprises step-up coil, primary booster circuit in parallel on the primary coil of described step-up coil, described primary booster circuit is made up of electric capacity, triode and resistance.The IGBT inverter type welder of circuit inhaled by force by the band that the utility model provides, by direct current is changed into alternating current, because inversion operating frequency is very high, so the core section sum coil turn of main transformer greatly reduces, inverter type welder is made to save metal material to a great extent, reduce appearance and size and weight, greatly reduce electric energy loss; In addition, inverter type welder can adjust output current within the time of delicate level, and utilizes strong circuit of inhaling can produce larger attraction and attract stroke, thus realizes the desirable control procedure required by welding process, obtains satisfied welding effect.
Description
Technical field
The utility model relates to a kind of inverter type welder, particularly relates to a kind of with the strong IGBT inverter type welder inhaling circuit.
Background technology
The use of IGBT inverter type welder in arc welding is more and more general, inverter arc welding power source all will use high-power switch device, electric power triode, metal-oxide-semiconductor or IGBT, for improving the reliability of these high power devices, detect main transformer primary current usually through current transformer and carry out the electric current that indirect inspection flows through these high power devices, but more existing IGBT inverter type welders its also have a lot of weak point, such as " burning pipe " problem annoyings people always.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of with the strong IGBT inverter type welder inhaling circuit, can produce larger attraction and attract stroke, can realize the desirable control procedure required by welding process, obtaining satisfied welding effect.
The utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of with the strong IGBT inverter type welder inhaling circuit, comprise main circuit module, control module and power supply, described main circuit module comprises input rectifier, first wave filter, IGBT inverter, intermediate-frequency transformer and output rectifier, described control module comprises undervoltage detection circuit, under-voltage protecting circuit, PWM, short-circuit protection circuit, no-load protection judging circuit, overheating protection circuit, current PI D regulating circuit and current detection circuit, described input rectifier output is connected with the first wave filter, described first filter output is connected with IGBT inverter, described IGBT inverter is connected with intermediate-frequency transformer, described intermediate-frequency transformer output is connected with output rectifier, described output rectifier output also connects one second wave filter,
Described power supply one end is connected with undervoltage detection circuit, described undervoltage detection circuit output is connected with under-voltage protecting circuit, described under-voltage protecting circuit output is connected with PWM, described overheating protection circuit, current PI D regulating circuit, short-circuit protection circuit is connected with PWM respectively with no-load protection judging circuit, described overheating protection circuit is connected with an overheating detection circuit, described short-circuit protection circuit is connected with a short-circuit detecting circuit, the described short-circuit detecting circuit other end is connected with IGBT inverter output end, described current PI D regulating circuit is connected with arc thrust control circuit, arc automatic starting circuit and current detection circuit, the described current detection circuit other end is connected with the second filter output, described unloaded judging circuit is connected with arc automatic starting circuit.
The IGBT inverter type welder of circuit inhaled by force by above-mentioned band, and wherein, described arc thrust control circuit is connected with a voltage detecting circuit, and the described voltage detecting circuit other end is connected with the second filter output.
The IGBT inverter type welder of circuit inhaled by force by above-mentioned band, wherein, is provided with a given value of current circuit between described current PI D regulating circuit and current detection circuit.
The IGBT inverter type welder of circuit inhaled by force by above-mentioned band, wherein, is provided with a time control circuit between described power supply and undervoltage detection circuit, can limits the working time, prevents from using and damages electric welding for a long time.
The IGBT inverter type welder of circuit inhaled by force by above-mentioned band, and wherein, described control module is also provided with the last one and inhales circuit, utilizes and inhales circuit by force, can produce larger attraction and attract stroke.
The IGBT inverter type welder of circuit inhaled by force by above-mentioned band, and wherein, described strong suction circuit comprises step-up coil, and primary booster circuit in parallel on the primary coil of described step-up coil, described primary booster circuit is made up of electric capacity, triode and resistance.
The utility model contrast prior art has following beneficial effect: the IGBT inverter type welder of circuit inhaled by force by the band that the utility model provides, by direct current is changed into alternating current, because inversion operating frequency is very high, so the core section sum coil turn of main transformer greatly reduces, therefore, inverter type welder can save metal material to a great extent, reduces appearance and size and weight, greatly reduces electric energy loss; In addition, inverter type welder can adjust output current within the time of delicate level, and utilization inhales circuit by force, can produce larger attraction and attract stroke, thus realizing the desirable control procedure required by welding process, obtaining satisfied welding effect.
Accompanying drawing explanation
Fig. 1 is the IGBT inverter welder circuit block diagram that circuit inhaled by force by the utility model band.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the IGBT inverter welder circuit block diagram that circuit inhaled by force by the utility model band.
Refer to Fig. 1, the IGBT inverter type welder that circuit inhaled by force by the band that the utility model provides comprises circuit module, control module and power supply 21, described main circuit module comprises input rectifier 1, first wave filter 2, IGBT inverter 3, intermediate-frequency transformer 4 and output rectifier 5, described control module comprises undervoltage detection circuit 7, under-voltage protecting circuit 8, PWM10, short-circuit protection circuit 11, no-load protection judging circuit 12, overheating protection circuit 17, current PI D regulating circuit 18 and current detection circuit 19, described input rectifier 1 output is connected with the first wave filter 2, described first wave filter 2 output is connected with IGBT inverter 3, described IGBT inverter 3 is connected with intermediate-frequency transformer 4, described intermediate-frequency transformer 4 output is connected with output rectifier 5, described output rectifier 5 output also connects one second wave filter 6,
Described power supply 21 one end is connected with undervoltage detection circuit 7, described undervoltage detection circuit 7 output is connected with under-voltage protecting circuit 8, described under-voltage protecting circuit 8 output is connected with PWM10, described overheating protection circuit 17, current PI D regulating circuit 18, short-circuit protection circuit 11 is connected with PWM10 respectively with no-load protection judging circuit 12, described overheating protection circuit 17 is connected with an overheating detection circuit 16, described short-circuit protection circuit 11 is connected with a short-circuit detecting circuit 9, described short-circuit detecting circuit 9 other end is connected with IGBT inverter 3 output, described current PI D regulating circuit 18 is connected with arc thrust control circuit 13, arc automatic starting circuit 14 and current detection circuit 19, described current detection circuit 19 other end is connected with the second wave filter 6 output, described unloaded judging circuit 12 is connected with arc automatic starting circuit 14.
Wherein, described arc thrust control circuit 13 is connected with a voltage detecting circuit 15, described voltage detecting circuit 15 other end is connected with the second wave filter 6 output.
A given value of current circuit 20 is provided with between described current PI D regulating circuit 18 and current detection circuit 19.
Be provided with a time control circuit 22 between described power supply 21 and undervoltage detection circuit 7, can limit the working time, prevent from using and damage electric welding for a long time.
Described control module is also provided with the last one and inhales circuit, utilizes and inhales circuit by force, can produce larger attraction and attract stroke.
Described strong suction circuit comprises step-up coil, and primary booster circuit in parallel on the primary coil of described step-up coil, described primary booster circuit is made up of electric capacity, triode and resistance.
The course of work that the IGBT inverter type welder of circuit inhaled by force by the band that the utility model provides is as follows: by three-phase or single phase industrial frequence AC rectification, a more level and smooth direct current is obtained after filtering, this direct current is become the alternating current of tens KHZ by the inverter circuit be made up of IGBT, after main transformer step-down, then obtain stable direct current output welding current through rectifying and wave-filtering.
The beneficial effects of the utility model are: direct current is changed into alternating current by IGBT inverter by the utility model, because inversion operating frequency is very high, so the core section sum coil turn of main transformer greatly reduces, therefore, inverter type welder can save metal material to a great extent, reduce appearance and size and weight, greatly reduce electric energy loss, the more important thing is, inverter type welder can adjust output current within the time of delicate level, and utilization inhales circuit by force, larger attraction can be produced and attract stroke, so the desirable control procedure required by welding process just can be realized, obtain satisfied welding effect.
Although the utility model discloses as above with preferred embodiment; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (6)
1. the strong IGBT inverter type welder inhaling circuit of band, it is characterized in that, comprise main circuit module, control module and power supply, described main circuit module comprises input rectifier, first wave filter, IGBT inverter, intermediate-frequency transformer and output rectifier, described control module comprises undervoltage detection circuit, under-voltage protecting circuit, PWM, short-circuit protection circuit, no-load protection judging circuit, overheating protection circuit, current PI D regulating circuit and current detection circuit, described input rectifier output is connected with the first wave filter, described first filter output is connected with IGBT inverter, described IGBT inverter is connected with intermediate-frequency transformer, described intermediate-frequency transformer output is connected with output rectifier, described output rectifier output also connects one second wave filter,
Described power supply one end is connected with undervoltage detection circuit, described undervoltage detection circuit output is connected with under-voltage protecting circuit, described under-voltage protecting circuit output is connected with PWM, described overheating protection circuit, current PI D regulating circuit, short-circuit protection circuit is connected with PWM respectively with no-load protection judging circuit, described overheating protection circuit is connected with an overheating detection circuit, described short-circuit protection circuit is connected with a short-circuit detecting circuit, the described short-circuit detecting circuit other end is connected with IGBT inverter output end, described current PI D regulating circuit is connected with arc thrust control circuit, arc automatic starting circuit and current detection circuit, the described current detection circuit other end is connected with the second filter output, described unloaded judging circuit is connected with arc automatic starting circuit.
2. the strong IGBT inverter type welder inhaling circuit of band as claimed in claim 1, it is characterized in that, described arc thrust control circuit is connected with a voltage detecting circuit, and the described voltage detecting circuit other end is connected with the second filter output.
3. the strong IGBT inverter type welder inhaling circuit of band as claimed in claim 1, is characterized in that, be provided with a given value of current circuit between described current PI D regulating circuit and current detection circuit.
4. the strong IGBT inverter type welder inhaling circuit of band as claimed in claim 1, is characterized in that: be provided with a time control circuit between described power supply and undervoltage detection circuit.
5. the strong IGBT inverter type welder inhaling circuit of band as claimed in claim 1, is characterized in that: described control module is also provided with the last one and inhales circuit.
6. the strong IGBT inverter type welder inhaling circuit of band as claimed in claim 5, it is characterized in that: described strong suction circuit comprises step-up coil, primary booster circuit in parallel on the primary coil of described step-up coil, described primary booster circuit is made up of electric capacity, triode and resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409645.6U CN204122900U (en) | 2014-07-23 | 2014-07-23 | A kind of with the strong IGBT inverter type welder inhaling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409645.6U CN204122900U (en) | 2014-07-23 | 2014-07-23 | A kind of with the strong IGBT inverter type welder inhaling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204122900U true CN204122900U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409645.6U Expired - Fee Related CN204122900U (en) | 2014-07-23 | 2014-07-23 | A kind of with the strong IGBT inverter type welder inhaling circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204122900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104109A (en) * | 2018-09-07 | 2018-12-28 | 曾金玉 | A kind of high efficiency inversion transformation technique protection circuit |
| CN110280870A (en) * | 2019-07-25 | 2019-09-27 | 杭州加裕电子科技有限公司 | A kind of digital inverter type welder sampling and control system |
-
2014
- 2014-07-23 CN CN201420409645.6U patent/CN204122900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104109A (en) * | 2018-09-07 | 2018-12-28 | 曾金玉 | A kind of high efficiency inversion transformation technique protection circuit |
| CN110280870A (en) * | 2019-07-25 | 2019-09-27 | 杭州加裕电子科技有限公司 | A kind of digital inverter type welder sampling and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |