CN103722319B - The circuit control board system of electric welding machine and electric welding machine thereof - Google Patents
The circuit control board system of electric welding machine and electric welding machine thereof Download PDFInfo
- Publication number
- CN103722319B CN103722319B CN201310705287.3A CN201310705287A CN103722319B CN 103722319 B CN103722319 B CN 103722319B CN 201310705287 A CN201310705287 A CN 201310705287A CN 103722319 B CN103722319 B CN 103722319B
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- circuit
- voltage
- welding machine
- electric welding
- current
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Arc Welding Control (AREA)
Abstract
The circuit control board system of electric welding machine provided by the invention, comprising: control panel and one piece of mainboard, connected by winding displacement between control panel and mainboard; Mainboard comprises: switching power circuit, input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit.The present invention also provides corresponding electric welding machine.The present invention has beneficial effect: 1) machine structure is simply clear; 2) simplify production technology, shorten production hour, reduce manufacturing cost; 3) annexation is simple, and some important connection wire Copper Foils replace, and can play the effect of fool proof, decreases the probability producing mistake; 4) annexation is simple, decreases the interference that traditional connection wire seals in; 5) the independent layout of each functional module, facilitates test and maintenance; 6) welding machine whole system modularization, facilitates machine to improve the operations such as upgrading.
Description
Technical field
The present invention relates to electric welding machine, particularly, relate to circuit control board system and the electric welding machine thereof of electric welding machine.
Background technology
The machine of dual power supply (AC220V & AC380V) in the market, owing to wherein having input voltage decision circuitry, voltage doubling rectifing circuit and inversion, secondary rectification circuit and control circuit etc., whole welder system huge and between various piece annexation complicated, once namely the circuit wrong of key can cause the damage of whole welding machine, be inconvenient to manufacture and the operation such as follow-up maintenance.
Especially the current machine for dual power supply, because circuit connecting relation is complicated, does not also have the appearance of veneer type.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of circuit control board system and electric welding machine thereof of electric welding machine.The circuit control board system of described electric welding machine replaces traditional wire to connect by utilizing the Copper Foil on circuit board, the internal structure of whole machine can be simplified, make the annexation of whole machine simply clear, simplify production technology, reduce production hour and production cost.Simultaneously because the annexation of circuit board is fixed mode, also there is the effect of fool proof, decrease the probability producing mistake.
According to the circuit control board system of electric welding machine provided by the invention, comprising: control panel and one piece of mainboard, be connected by winding displacement between mainboard with control panel;
Wherein, mainboard comprises as lower module:
Switching power circuit, controls power supply and accessory power supply for providing for control panel and mainboard;
Input voltage decision circuitry, for Gather and input voltage signal, judge that the net pressure that electric welding machine accesses is the first voltage or the second voltage, wherein, the first voltage is less than the second voltage, then judged result is sent to control panel; Control panel according to the judged result of input voltage decision circuitry, to control voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit processes electric welding machine incoming transport electricity;
Voltage multiplying rectifier filter circuit, for being filtered into high-tension direct current by the electric welding machine incoming transport of the first voltage electricity voltage multiplying rectifier;
Current rectifying and wave filtering circuit, for being filtered into direct current by the electric welding machine incoming transport electric rectification of the second voltage;
Inverter circuit, for becoming the ac square wave Pulse Electric of intermediate frequency by the DC inverter that voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit export according to the inversion control of control panel;
Transformer, the midfrequent AC square-wave pulse electricity for being exported by inverter circuit is converted to the alternating current of the low-voltage and high-current being applicable to welding application;
Full-wave rectifying circuit, the AC rectification for being exported by transformer is direct current;
Current feedback circuit, for gathering from the welding current signal feedback of transformer to control panel, control panel to export mainboard according to the feedback signal of current feedback circuit and carries out current constant control;
Voltage feedback circuit, for collection is fed back to control panel from the electric welding machine output voltage signal of full-wave rectifying circuit, control panel carries out output voltage control according to electric welding machine output voltage signal to mainboard output.
Preferably, switching power circuit, input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit to lay respectively on mainboard independent layout in each self-corresponding continuum.
Preferably, the connection between switching power circuit, input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit is all connected by the Copper Foil on mainboard.
Preferably, the first voltage is 220V, and the second voltage is 380V.
According to electric welding machine provided by the invention, described electric welding machine comprises the circuit control board system of above-mentioned electric welding machine.
Compared with prior art, the present invention has following beneficial effect:
1) machine structure is simply clear;
2) simplify production technology, shorten production hour, reduce manufacturing cost;
3) annexation is simple, and some important connection wire Copper Foils replace, and can play the effect of fool proof, decreases the probability producing mistake;
4) annexation is simple, decreases the interference that traditional connection wire seals in;
5) the independent layout of each functional module, facilitates test and maintenance;
6) welding machine whole system modularization, facilitates machine to improve the operations such as upgrading.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Present invention employs brand-new pcb board layout type, by each functional module rational deployment on circuit boards of welding machine, the annexation of Copper Foil on circuit board is utilized to replace wire to connect, i.e. so-called " single board computer ", relation in welding machine so not only can be kept clear, simultaneously because production technology is simple, can greatly shorten production hour and production cost.
According to electric welding machine provided by the invention, it comprises the circuit control board system of electric welding machine, and particularly, the circuit control board system of described electric welding machine adopts two pieces of circuit boards altogether, i.e. mainboard and control panel, and these two pieces of circuit boards of mainboard and control panel are connected by a winding displacement.Wherein control panel is by gathering the various signals on mainboard, after the single-chip microcomputer calculation process that control panel comprises, provide control signal, controls mainboard and carries out work in every.Mainboard comprises: switching power circuit, input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit be totally 9 functional modules.The effect of each functional module is as follows respectively:
Switching power circuit: control power supply and various accessory power supply for whole welding machine provides.Switching Power Supply is the time ratio turned on and off by gauge tap pipe, maintains a kind of power supply of regulated output voltage, can be made up of pulse width modulation (PWM) control IC, MOSFET and transformer.Compared with traditional Industrial Frequency Transformer, it is wider that it has input voltage range, and efficiency is advantages of higher more.
Input voltage decision circuitry: Gather and input voltage signal, is given to single-chip computer control system, is used for judging that the net pressure that welding machine accesses is 220V or 380V.
Voltage multiplying rectifier filter circuit: the alternating current voltage multiplying rectifier of 220V is filtered into high-tension direct current.Voltage multiplying rectifier, be about to lower alternating voltage, go out a higher DC voltage with withstand voltage lower diode and capacitor " rectification ", voltage doubling rectifing circuit can be how many times of input voltage by output voltage, is divided into two multiplication of voltages, three multiplication of voltages and multiply background images circuit.
Current rectifying and wave filtering circuit: the AC rectification of 380V is filtered into direct current.Namely ripple voltage in rectifier output voltage is filtered as level and smooth DC voltage by reactance or electric capacity by filter circuit, reduce the alternating component in the DC voltage of pulsing as far as possible, retain its flip-flop, output voltage ripple coefficient is reduced, and waveform becomes smoother.
Inverter circuit: ac square wave Pulse Electric DC inverter being become intermediate frequency, its main member is primary coil, secondary coil and iron core (magnetic core).
Transformer: the midfrequent AC square-wave pulse electricity exported by inverter circuit is converted to the low-voltage and high-current being applicable to welding application.
Full-wave rectifying circuit: the AC rectification exported by transformer is direct current.In full-wave rectifying circuit, in half period, electric current flows through a rectifying device, and in another half cycle, electric current flows through second rectifying device, and the connection of two rectifying devices can make the electric current flowing through them flow through load with same direction.
Current feedback (circuitfeedback) circuit: by welding current signal feedback to single-chip microcomputer, is used as crossing current and controls.
Voltage Feedback (voltagefeedback) circuit: welding machine output voltage signal is fed back to single-chip microcomputer, as output voltage control.
On mainboard, by the Copper Foil annexation on circuit board, above-mentioned 9 functional modules are coupled together, eliminate traditional wire annexation, the independent layout of modules, avoids the mutual interference between modules simultaneously, can reduce the various interference connecting wire and seal in simultaneously, wherein, the concrete annexation of above-mentioned 9 functional modules is as follows:
Switching power circuit connects input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit and control panel respectively;
Control panel connects input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit respectively;
Voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit connect inverter circuit respectively;
Inverter circuit, transformer, full-wave rectifying circuit connect successively;
Transformer is by current feedback circuit connection control plate;
Full-wave rectifying circuit is by voltage feedback circuit connection control plate.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. a circuit control board system for electric welding machine, is characterized in that, comprising: control panel and one piece of mainboard, connected by winding displacement between control panel and mainboard;
Wherein, mainboard comprises as lower module:
Switching power circuit, controls power supply and accessory power supply for providing for control panel and mainboard;
Input voltage decision circuitry, for Gather and input voltage signal, judge that the net pressure that electric welding machine accesses is the first voltage or the second voltage, wherein, the first voltage is less than the second voltage, then judged result is sent to control panel; Control panel according to the judged result of input voltage decision circuitry, to control voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit processes electric welding machine incoming transport electricity;
Voltage multiplying rectifier filter circuit, for being filtered into high-tension direct current by the electric welding machine incoming transport of the first voltage electricity voltage multiplying rectifier;
Current rectifying and wave filtering circuit, for being filtered into direct current by the electric welding machine incoming transport electric rectification of the second voltage;
Inverter circuit, for becoming the ac square wave Pulse Electric of intermediate frequency by the DC inverter that voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit export according to the inversion control of control panel;
Transformer, the midfrequent AC square-wave pulse electricity for being exported by inverter circuit is converted to the alternating current of the low-voltage and high-current being applicable to welding application;
Full-wave rectifying circuit, the AC rectification for being exported by transformer is direct current;
Current feedback circuit, for gathering from the welding current signal feedback of transformer to control panel, control panel to export mainboard according to the feedback signal of current feedback circuit and carries out current constant control;
Voltage feedback circuit, for collection is fed back to control panel from the electric welding machine output voltage signal of full-wave rectifying circuit, control panel carries out output voltage control according to electric welding machine output voltage signal to mainboard output.
2. the circuit control board system of electric welding machine according to claim 1, it is characterized in that, switching power circuit, input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit to lay respectively on mainboard independent layout in each self-corresponding continuum.
3. the circuit control board system of electric welding machine according to claim 1, it is characterized in that, the connection between switching power circuit, input voltage decision circuitry, voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit, inverter circuit, transformer, full-wave rectifying circuit, current feedback circuit, voltage feedback circuit is all connected by the Copper Foil on mainboard.
4. the circuit control board system of electric welding machine according to claim 1, is characterized in that, the first voltage is 220V, and the second voltage is 380V.
5. an electric welding machine, is characterized in that, described electric welding machine comprises the circuit control board system of the electric welding machine according to any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705287.3A CN103722319B (en) | 2013-12-19 | 2013-12-19 | The circuit control board system of electric welding machine and electric welding machine thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310705287.3A CN103722319B (en) | 2013-12-19 | 2013-12-19 | The circuit control board system of electric welding machine and electric welding machine thereof |
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| CN103722319A CN103722319A (en) | 2014-04-16 |
| CN103722319B true CN103722319B (en) | 2015-12-30 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227194B (en) * | 2014-07-18 | 2016-05-11 | 上海广为焊接设备有限公司 | Electric welding machine and the control system thereof of full voltage input |
| CN106270892B (en) * | 2015-06-03 | 2018-09-11 | 徐州市嘉迪汽车电器有限公司 | A kind of fusing soldering welder of motor copper conductor |
| CN111992847B (en) * | 2020-08-27 | 2024-05-31 | 上海沪工焊接集团股份有限公司 | Control method and device for wide-voltage multifunctional arc welder and storage medium thereof |
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| CN101602134A (en) * | 2008-06-12 | 2009-12-16 | 上海尤耐克焊接设备制造有限公司 | Main board of single-board welding machine |
| CN101502908B (en) * | 2009-03-16 | 2012-06-13 | 深圳市佳士科技股份有限公司 | Complete digital inversion type square wave alternating-current argon arc welder |
| CN201735934U (en) * | 2010-09-15 | 2011-02-09 | 深圳市华意隆实业发展有限公司 | Welding machine with low no-load output voltage |
| CN101966618B (en) * | 2010-11-12 | 2012-07-04 | 深圳华意隆电气股份有限公司 | Reactor-free and shunt-free current type PWM inverter type welding cut power supply |
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|---|---|---|---|---|
| CN2475502Y (en) * | 2001-05-24 | 2002-02-06 | 刘振英 | Large power inverter welding machine |
| CN101628356A (en) * | 2009-08-06 | 2010-01-20 | 唐山松下产业机器有限公司 | Soft switch inversion electric welding machine |
| CN201760694U (en) * | 2010-09-21 | 2011-03-16 | 深圳市华意隆实业发展有限公司 | Inversion type AC/DC pulse non-melting pole inert gas protection welder |
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