CN204231207U - A kind of inversion welding source main loop circuit structure - Google Patents
A kind of inversion welding source main loop circuit structure Download PDFInfo
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- CN204231207U CN204231207U CN201420689833.9U CN201420689833U CN204231207U CN 204231207 U CN204231207 U CN 204231207U CN 201420689833 U CN201420689833 U CN 201420689833U CN 204231207 U CN204231207 U CN 204231207U
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Abstract
The utility model discloses a kind of inversion welding source main loop circuit structure, comprise source of welding current input (1), circuit breaker (2), rectifier (3), starting resistance (4), A.C. contactor (5), filter capacitor (6), IGBT module (7), current sensor (8), main transformer (9), rectifier diode (11), AC relay (12), first radiator (13), first temperature detect switch (TDS) (14), second radiator (15), second temperature detect switch (TDS) (16), the rated current scope that the utility model major loop structure only needs current sensor to measure required for equipment, select different turn ratio, just can realize the demand of larger rated welding current, according to Product jointing electric power outputting current demand, certain adjustment is carried out to the structure of main transformer, size, rated capacity and turn ratio, just can adapt to the demand that more broad forehead determines power capacity output, reduce cost, optimize bookkeeping, improve the stability of product quality.
Description
Technical field
The utility model relates to a kind of source of welding current circuit, particularly relates to a kind of inversion welding source main loop circuit structure.
Background technology
At present in inversion welding source main loop circuit structure, when needing sometimes to provide larger power output power requirement, need to modify transformation to whole power supply main loop circuit structure, make whole improvement project large, the research and development of products cycle is long widely, improve transformation cycle and cost, product quality is also difficult to be guaranteed.Simultaneously in transformation process, main loop circuit structure is inconsistent, in debugging, installs, operates extremely inconvenient in maintenance process.
Summary of the invention
Goal of the invention: one preferably inversion welding source main loop circuit structure is provided, flexible and convenient to use, be applicable to the product of multiple different output power capacity requirement, different rated welding current demand.
Technical scheme: a kind of inversion welding source main loop circuit structure, comprise source of welding current input 1, circuit breaker 2, rectifier 3, starting resistance 4, A.C. contactor 5, filter capacitor 6, IGBT module 7, current sensor 8, main transformer 9, rectifier diode 11, AC relay 12, first radiator 13, first temperature detect switch (TDS) 14, second radiator 15, second temperature detect switch (TDS) 16
Described source of welding current input 1 is electrically connected with described circuit breaker 2, described circuit breaker 2 is electrically connected with described rectifier 3, described rectifier 3 is electrically connected with described A.C. contactor 5, described rectifier 3 is electrically connected with described starting resistance 4, described A.C. contactor 5 is electrically connected with described filter capacitor 6, described A.C. contactor 5 is electrically connected with described starting resistance 4, described A.C. contactor 5 is electrically connected with described AC relay 12, described filter capacitor 6 is electrically connected with described IGBT module 7, described IGBT module 7 is mechanically connected with described first radiator 13, described IGBT module 7 is electrically connected with described main transformer 9, and described current sensor 8 is through between described IGBT module 7 and described main transformer 9 by cable, described first radiator 13 is mechanically connected with described first temperature detect switch (TDS) 14, described main transformer 9 is electrically connected with described rectifier diode 11, described rectifier diode 11 is mechanically connected with described second radiator 15, and described second radiator 15 is mechanically connected with described second temperature detect switch (TDS) 16.
The beneficial effects of the utility model: the rated current scope that the utility model major loop structure only needs current sensor to measure required for equipment, select different turn ratio, make current sensor have the measuring range of required electric current, just can realize the demand of larger rated welding current; To the structure of main transformer, size, rated capacity and turn ratio, as long as carry out certain adjustment according to Product jointing electric power outputting current demand, the demand that more broad forehead determines power capacity output just can be adapted to, like this, major loop structure just does not need to make large change and amendment, simplify the participation of operating personnel in production process, reduce cost, optimize bookkeeping, also improve the stability of product quality, greatly facilitate later debugging, install, attended operation process.
Accompanying drawing explanation
Fig. 1 is the utility model inversion welding source main loop circuit structure chart (being major loop in dotted line frame in figure).
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, describe the present invention below in conjunction with the drawings and specific embodiments.
As Fig. 1, described source of welding current input 1 is electrically connected with circuit breaker 2, and the source of welding current is input as aviation socket, input 220V/380V; Power frequency AC enters circuit breaker 2, and circuit breaker 2 is mains switch, and circuit breaker 2 can close, carries and cut-off the electric current under normal loop condition, carries out protection to power circuit, and switch closes.
Described circuit breaker 2 is electrically connected with electromagnetic interface filter 20, circuit breaker 2 exports 220V/380V power frequency AC and enters electromagnetic interface filter 20, and the power frequency AC of electromagnetic interface filter 20 to input carries out filtering, suppresses ripple interference, stable output is reliable, cleaner 220V/380V power frequency AC.
Described AC relay 12 is electrically connected with electromagnetic interface filter 20, and electromagnetic interface filter 20 exports 220V/380V power frequency AC and enters AC relay 12.
Described AC relay 12 is electrically connected with control board 50, control board 50 controls the closed of AC relay 12 coil and disconnects, after starting certain hour when powering on, control board 50 sends Closed control signal, AC relay 12 coil obtains electric closed, the normally opened contact of AC relay 12 closes, and connects the 220V/380V power frequency AC inputted from electromagnetic interface filter 20.
Described A.C. contactor 5 is electrically connected with electromagnetic interface filter 20, and electromagnetic interface filter 20 exports 220V/380V power frequency AC and enters A.C. contactor 5.
Described A.C. contactor 5 is electrically connected with AC relay 12, AC relay 12 controls the closed disconnection of the dynamic point of A.C. contactor 5, after starting certain hour when powering on, control board 50 sends Closed control signal, AC relay 12 coil obtains electric closed, the normally opened contact of AC relay 12 closes, connect the 220V/380V power frequency AC inputted from electromagnetic interface filter 20, the normally opened contact closed 220V/380V of the connection power frequency AC of AC relay 12 exports and enters A.C. contactor 5, A.C. contactor 5 is dynamic puts to obtain electric closed connection, after the closed connection of the dynamic point of A.C. contactor 5, interlocking loop is formed to the 220V/380V power frequency AC of input, A.C. contactor 5 normally opened contact is closed connects interlocking, after time delay certain hour, control board 50 sends disconnection control signal, AC relay 12 coil losing electricity disconnects normally opened contact, the 220V/380V power frequency AC that AC relay 12 inputs disconnects, A.C. contactor 5 normally opened contact is always closed to be connected.
Described starting resistance 4 is electrically connected with rectifier 3, and rectifier 3 exports rectification DC power supply and enters starting resistance 4, and in the present embodiment, described rectifier 3 is rectifier bridge.
Described starting resistance 4 is electrically connected with filter capacitor 6, described starting resistance 4 is electrically connected with A.C. contactor 5 parallel connection, after system boot powers on, rectification DC power supply carries out current-limiting charge by the electric capacity in starting resistance 4 pairs of filter capacitors 6, be charged to certain hour, A.C. contactor 5 obtains electric, A.C. contactor 5 normally opened contact is closed connects interlocking, described A.C. contactor 5 is electrically connected with filter capacitor 6, the DC power supply from rectifier bridge 3 rectification input connected by A.C. contactor 5, A.C. contactor 5 exports DC power supply and enters filter capacitor 6, simultaneously, starting resistance 4 forms short circuit because A.C. contactor 5 normally opened contact is closed, stop the capacitance current-limiting charging in filter capacitor 6.
Described IGBT module 7 is electrically connected with filter capacitor 6, and filter capacitor 6 exports cleaner DC power supply and enters IGBT module 7.
Described IGBT module 7 is electrically connected with power drives plate 40, and the PWM drive singal control IGBT module 7 that power drives 40 exports 4KHz normally works.
Described IGBT module 7 is electrically connected with main transformer 9, and the PWM drive singal control IGBT module 7 that power drives 40 exports 4KHz normally works, and the pulse ac power supply output that DC power supply is transformed to 4KHz by the inversion of IGBT module 7 enters main transformer 9.
Described IGBT module 7 and the first radiator 13 are mechanically connected, and the heat of institute's loss in IGBT module 7 course of work distributes to the first radiator 13 by heat transfer, reduces temperature when IGBT module 7 works.
Described first radiator 13 and the first temperature detect switch (TDS) 14 are mechanically connected, and the temperature level of the first radiator 13 monitored by the first temperature detect switch (TDS) 14, and when the first radiator 13 real time temperature exceedes uniform temperature, the first temperature detect switch (TDS) 14 sends alarm signal.
Described first temperature detect switch (TDS) 14 is electrically connected with control board 50, and temperature detect switch (TDS) sends alarm signal to control board, and control board stops exporting pwm control signal after monitoring alarm signal, and IGBT module 7 quits work.
Described main transformer 9 is electrically connected with rectifier diode 11, and the pulse power that main transformer 9 decompression transformation exports 4KHz enters rectifier diode, and the pulse power of rectifier diode 11 couples of 4KHz carries out rectification and exports DC power supply.
Described rectifier diode 11 is electrically connected with welding head 80, and rectifier diode 11 exports DC power supply and enters welding head, and welding head obtains DC power supply and carries out welding job.
Described rectifier diode and the second radiator 15 are mechanically connected, and the heat of institute's loss in the rectifier diode course of work distributes to the second radiator 15 by heat transfer, reduces temperature during rectifier diode work.
Described second radiator 15 and the second temperature detect switch (TDS) 16 are mechanically connected, and the temperature level of the second radiator 15 monitored by the second temperature detect switch (TDS) 16, and when the second radiator 15 real time temperature exceedes uniform temperature, the second temperature detect switch (TDS) 16 sends alarm signal.
Described second temperature detect switch (TDS) 16 is electrically connected with control board 50, and temperature detect switch (TDS) sends alarm signal to control board, and control board stops exporting pwm control signal after monitoring alarm signal, and IGBT module 7 quits work.
Described current sensor 8 is electrically connected with control board 50, current sensor 8 is a kind of checkout gears, can experience the information of tested electric current, and the information that the information that detection is experienced can be for conversion into according to certain rules the signal of telecommunication or other desired forms meeting certain standard exports.Current sensor detects the elementary real-time welding current size of main transformer, export the feedback voltage after conversion to control board 50, control board 50 obtains the laggard row data processing of real-time feedback data, carries out FEEDBACK CONTROL to pwm control signal, controls the source of welding current in real time and carries out work by the parameter of setting.
With reference to figure 1, during use, close killer switch, 220V/380V power frequency AC enters circuit breaker from supply socket input, circuit breaker out-put supply enters rectifier bridge, rectifier bridge utilizes the unilateral conduction of diode, 220V/380V power frequency AC is become direct current and enters starting resistance, and starting resistance carries out current-limiting charge to filter capacitor.After system electrification certain hour, control board sends Closed control signal controlling AC relay, and AC relay coil obtains electric closed, and the normally opened contact of AC relay closes, and connects the 220V/380V power frequency AC from electromagnetic interface filter input; The AC relay normally opened contact closed 220V/380V of connection power frequency AC exports and enters A.C. contactor, A.C. contactor is dynamic puts to obtain electric closed connection, A.C. contactor forms interlocking loop to the 220V/380V power frequency AC of input after moving a little closed connection, A.C. contactor normally opened contact is closed connects interlocking, like this, the DC power supply that rectifier bridge rectification exports is connected by the normally opened contact of A.C. contactor is closed, enters filter capacitor from A.C. contactor input.Starting resistance forms short circuit because A.C. contactor normally opened contact is closed, stops filter capacitor current-limiting charge; After time delay certain hour, control board sends disconnection control signal, AC relay coil losing electricity disconnects normally opened contact, the 220V/380V power frequency AC of AC relay input disconnects, and form interlocking adhesive from the 220V/380V power frequency AC of electromagnetic interface filter input by A.C. contactor normally opened contact, make A.C. contactor normally opened contact namely be also remain closed connection after AC relay disconnects, out-put supply enters filter capacitor always.
Filter capacitor exports cleaner power supply and enters IGBT module, when control board Programmable detection is to after having outside weldings enabling signal, control board welding procedure brings into operation, the pwm signal that control board exports 4KHz controls IGBT module work after power drives plate drive amplification, IGBT module realizes DC power supply to be converted to the pulse ac power supply that frequency is 4KHz, the pulse ac power supply of 4KHz exports and enters rectifier diode after main transformer decompression transformation, it is DC power supply that the pulse ac power supply of rectifier diode to 4KHz carries out rectification, DC power supply exports and enters welding head, for welding head provides the source of welding current to carry out device welding.
In welding job process, current sensor detects the elementary real-time welding current size of main transformer, export the voltage feedback signal after conversion to control board, control board obtains the laggard row data processing of real-time feedback data, FEEDBACK CONTROL is carried out to pwm control signal, controls the source of welding current in real time and carry out work by the parameter of setting.
Radiator and temperature detect switch (TDS) are mechanically connected, the temperature level of temperature detect switch (TDS) monitoring radiator, when radiator real time temperature exceedes uniform temperature, temperature detect switch (TDS) sends alarm signal to control board, control board stops exporting pwm control signal after monitoring alarm signal, and IGBT module quits work.
The foregoing is only preferred embodiments of the present utility model, not in order to limit the utility model, any amendment done within spirit of the present utility model and principle, equivalent replacement, improvement etc., all should be included within system configuration of the present utility model.
Claims (1)
1. an inversion welding source main loop circuit structure, comprise source of welding current input (1), circuit breaker (2), rectifier (3), starting resistance (4), A.C. contactor (5), filter capacitor (6), IGBT module (7), current sensor (8), main transformer (9), rectifier diode (11), AC relay (12), the first radiator (13), the first temperature detect switch (TDS) (14), the second radiator (15), the second temperature detect switch (TDS) (16), it is characterized in that:
Described source of welding current input (1) is electrically connected with described circuit breaker (2), described circuit breaker (2) is electrically connected with described rectifier (3), described rectifier (3) is electrically connected with described A.C. contactor (5), described rectifier (3) is electrically connected with described starting resistance (4), described A.C. contactor (5) is electrically connected with described filter capacitor (6), described A.C. contactor (5) is electrically connected with described starting resistance (4), described A.C. contactor (5) is electrically connected with described AC relay (12), described filter capacitor (6) is electrically connected with described IGBT module (7), described IGBT module (7) and described first radiator (13) are mechanically connected, described IGBT module (7) is electrically connected with described main transformer (9), and described current sensor (8) is through between described IGBT module (7) and described main transformer (9) by cable, described radiator (13) and described first temperature detect switch (TDS) (14) are mechanically connected, described main transformer (9) is electrically connected with described rectifier diode (11), described rectifier diode (11) and described second radiator (15) are mechanically connected, and described second radiator (15) and described second temperature detect switch (TDS) (16) are mechanically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689833.9U CN204231207U (en) | 2014-11-17 | 2014-11-17 | A kind of inversion welding source main loop circuit structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689833.9U CN204231207U (en) | 2014-11-17 | 2014-11-17 | A kind of inversion welding source main loop circuit structure |
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| CN204231207U true CN204231207U (en) | 2015-03-25 |
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| CN201420689833.9U Active CN204231207U (en) | 2014-11-17 | 2014-11-17 | A kind of inversion welding source main loop circuit structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253038A (en) * | 2021-06-28 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Online monitoring device and method for comprehensive alarm unit of GIS equipment of transformer substation |
-
2014
- 2014-11-17 CN CN201420689833.9U patent/CN204231207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253038A (en) * | 2021-06-28 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Online monitoring device and method for comprehensive alarm unit of GIS equipment of transformer substation |
| CN113253038B (en) * | 2021-06-28 | 2021-09-10 | 广东电网有限责任公司中山供电局 | Online monitoring device and method for comprehensive alarm unit of GIS equipment of transformer substation |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180425 Address after: 214000 56 701 of Huaqing Creative Park, 33 wisdom road, Huishan Economic Development Zone, Wuxi, Jiangsu. Patentee after: JIANGSU NST ELECTRONIC SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 215000 408 55 Changjiang Road, Mu Du Town, Wuzhong District, Suzhou, Jiangsu, 408 Patentee before: SUZHOU NST ELECTRONICS EQUIPMENTS CO., LTD. |
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| TR01 | Transfer of patent right |