CN103722319A - Electric welding machine and circuit control board system thereof - Google Patents
Electric welding machine and circuit control board system thereof Download PDFInfo
- Publication number
- CN103722319A CN103722319A CN201310705287.3A CN201310705287A CN103722319A CN 103722319 A CN103722319 A CN 103722319A CN 201310705287 A CN201310705287 A CN 201310705287A CN 103722319 A CN103722319 A CN 103722319A
- Authority
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- China
- Prior art keywords
- circuit
- voltage
- welding machine
- electric welding
- control panel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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 invention provides a circuit control board system of an electric welding machine. The circuit control board system comprises a control board and a master board, and the control board and the master board are connected through a flat cable; the master board comprises a switch power supply circuit, an input voltage judging circuit, a voltage doubling rectifying filter circuit, a rectifying filter circuit, an inverter circuit, a transformer, a full-wave rectifying circuit, a current feedback circuit and a voltage feedback circuit. The invention further provides the electric welding machine. The electric welding machine and the circuit control board system thereof have the advantages that the electric welding machine is simple and clear in structure; production process is simplified, production hours are shortened, and production cost is reduced; connection relation is simple, and some key connection leads are replaced by copper foils, so that a fool-proof function can be achieved, and the probability of production errors is reduced; interferences by clustering of traditional connection leads are reduced by the simple connection relation; functional modules are individually laid out, so that test and maintenance are facilitated; the whole system of the electric welding machine is modularized, so that operations such as improving and upgrading of the electric welding machine are facilitated.
Description
Technical field
The present invention relates to electric welding machine, particularly, relate to circuit control panel 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., annexation complexity between the huge and various piece of whole welder system, once crucial circuit wrong can cause the damage of whole welding machine, be inconvenient to manufacture and the operation such as follow-up maintenance.
Especially at present for the machine of dual power supply, due to circuit connecting relation complexity, also there is no 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 panel system and electric welding machine thereof of electric welding machine.The circuit control panel system of described electric welding machine is by utilizing the Copper Foil on circuit board to replace traditional wire to connect, can simplify the internal structure of whole machine, make the annexation of whole machine simply clear, simplify production technology, reduce production hour and production cost.Because the annexation of circuit board is fixed mode, also there is the effect of fool proof simultaneously, reduced and produced wrong probability.
According to the circuit control panel system of electric welding machine provided by the invention, comprising: control panel and a mainboard, be connected by winding displacement between mainboard and control panel;
Wherein, mainboard comprises as lower module:
Switching power circuit, is used to control panel and mainboard to provide and controls power supply and accessory power supply;
Input voltage decision circuitry, for Gather and input voltage signal, judges that the net pressure of electric welding machine access is the first voltage or second voltage, and wherein, the first voltage is less than second voltage, then judged result is sent to control panel; Control panel, according to the judged result of input voltage decision circuitry, is processed electric welding machine incoming transport electricity to control voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit;
Voltage multiplying rectifier filter circuit, for being filtered into high-tension direct current by the electric welding machine incoming transport electricity voltage multiplying rectifier of the first voltage;
Current rectifying and wave filtering circuit, for being filtered into direct current by the electric welding machine incoming transport electric rectification of second voltage;
Inverter circuit, for becoming the DC inverter of voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit output according to the inversion control of control panel the ac square wave Pulse Electric of intermediate frequency;
Transformer, for being converted to the midfrequent AC square-wave pulse electricity of inverter circuit output in the alternating current of the low-voltage and high-current that is applicable to welding application;
Full-wave rectifying circuit is direct current for the AC rectification that transformer is exported;
Current feedback circuit, for gathering from the welding current signal feedback of transformer to control panel, control panel according to the feedback signal of current feedback circuit to mainboard output carry out constant current control;
Voltage feedback circuit, for feeding back to control panel by gathering from the electric welding machine output voltage signal of full-wave rectifying circuit, control panel is exported and is carried out output voltage control mainboard according to electric welding machine output voltage signal.
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 lay respectively on mainboard in each self-corresponding continuum layout separately.
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 all connects by the Copper Foil on mainboard.
Preferably, the first voltage is 220V, and second voltage is 380V.
According to electric welding machine provided by the invention, described electric welding machine comprises the circuit control panel 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 wires replace with Copper Foil, can play the effect of fool proof, have reduced and have produced wrong probability;
4) annexation is simple, has reduced 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 of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
The present invention has adopted brand-new pcb board layout type, by each functional module rational deployment on circuit board of welding machine, utilize the annexation of Copper Foil on circuit board to replace wire to connect, i.e. so-called " single board computer ", so not only can keep the interior relation of welding machine clear, because production technology is simple, can greatly shorten production hour and production cost simultaneously.
According to electric welding machine provided by the invention, it comprises the circuit control panel system of electric welding machine, and particularly, the circuit control panel system of described electric welding machine adopts two circuit boards altogether, i.e. mainboard and control panel, and these two circuit boards of mainboard and control panel are connected by a winding displacement.Wherein control panel, by gathering the various signals on mainboard, provides control signal after the single-chip microcomputer calculation process comprising through control panel, 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 turning on and off by gauge tap pipe, maintains a kind of power supply of regulated output voltage, can control IC, MOSFET and transformer formation by pulse width modulation (PWM).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, be given to single-chip computer control system, be used for judging that the net pressure of welding machine access 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 many voltage doubling rectifing circuits.
Current rectifying and wave filtering circuit: the AC rectification of 380V is filtered into direct current.Filter circuit is level and smooth DC voltage by reactance or electric capacity by the ripple voltage filter in rectifier output voltage, alternating component in the DC voltage that reduces as far as possible to pulse, retain its flip-flop, output voltage ripple coefficient is reduced, it is smoother that waveform becomes.
Inverter circuit: DC inverter is become to the ac square wave Pulse Electric of intermediate frequency, its main member is primary coil, secondary coil and iron core (magnetic core).
Transformer: the midfrequent AC square-wave pulse electricity of inverter circuit output is converted to the low-voltage and high-current that is applicable to welding application.
Full-wave rectifying circuit: be direct current by the AC rectification of transformer output.In full-wave rectifying circuit, in half period, electric current flows through a rectifying device, and in another half cycle, electric current second rectifying device of flowing through, and the connection of two rectifying devices can make to flow through their electric current flows through load with same direction.
Current feedback (circuit feedback) circuit: welding current signal feedback, to single-chip microcomputer, is used as to crossing current and controls.
Voltage Feedback (voltage feedback) 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, saved traditional wire annexation, the independent layout of modules, has avoided the phase mutual interference between modules simultaneously, can reduce and connect the various interference that wire seals in simultaneously, wherein, the concrete annexation of above-mentioned 9 functional modules is as follows:
Switching power circuit connects respectively 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;
Control panel connects respectively 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;
Voltage multiplying rectifier filter circuit, current rectifying and wave filtering circuit connect respectively inverter circuit;
Inverter circuit, transformer, full-wave rectifying circuit connect successively;
Transformer connects control panel by current feedback circuit;
Full-wave rectifying circuit connects control panel by voltage feedback circuit.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. a circuit control panel system for electric welding machine, is characterized in that, comprising: control panel and a mainboard, connect by winding displacement between control panel and mainboard;
Wherein, mainboard comprises as lower module:
Switching power circuit, is used to control panel and mainboard to provide and controls power supply and accessory power supply;
Input voltage decision circuitry, for Gather and input voltage signal, judges that the net pressure of electric welding machine access is the first voltage or second voltage, and wherein, the first voltage is less than second voltage, then judged result is sent to control panel; Control panel, according to the judged result of input voltage decision circuitry, is processed electric welding machine incoming transport electricity to control voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit;
Voltage multiplying rectifier filter circuit, for being filtered into high-tension direct current by the electric welding machine incoming transport electricity voltage multiplying rectifier of the first voltage;
Current rectifying and wave filtering circuit, for being filtered into direct current by the electric welding machine incoming transport electric rectification of second voltage;
Inverter circuit, for becoming the DC inverter of voltage multiplying rectifier filter circuit or current rectifying and wave filtering circuit output according to the inversion control of control panel the ac square wave Pulse Electric of intermediate frequency;
Transformer, for being converted to the midfrequent AC square-wave pulse electricity of inverter circuit output in the alternating current of the low-voltage and high-current that is applicable to welding application;
Full-wave rectifying circuit is direct current for the AC rectification that transformer is exported;
Current feedback circuit, for gathering from the welding current signal feedback of transformer to control panel, control panel according to the feedback signal of current feedback circuit to mainboard output carry out constant current control;
Voltage feedback circuit, for feeding back to control panel by gathering from the electric welding machine output voltage signal of full-wave rectifying circuit, control panel is exported and is carried out output voltage control mainboard according to electric welding machine output voltage signal.
2. the circuit control panel 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 lay respectively on mainboard in each self-corresponding continuum layout separately.
3. the circuit control panel 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 all connects by the Copper Foil on mainboard.
4. the circuit control panel system of electric welding machine according to claim 1, is characterized in that, the first voltage is 220V, and second voltage is 380V.
5. an electric welding machine, is characterized in that, described electric welding machine comprises the circuit control panel system of the electric welding machine described in any one in claim 1 to 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103722319A true CN103722319A (en) | 2014-04-16 |
| CN103722319B CN103722319B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310705287.3A Active 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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| CN (1) | CN103722319B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227194A (en) * | 2014-07-18 | 2014-12-24 | 上海广为焊接设备有限公司 | Electric-welding-machine control system with full-voltage input and control system thereof |
| CN106270892A (en) * | 2015-06-03 | 2017-01-04 | 徐州市嘉迪汽车电器有限公司 | A kind of fusing soldering welder of motor copper conductor |
| CN111992847A (en) * | 2020-08-27 | 2020-11-27 | 上海沪工焊接集团股份有限公司 | Control method and device for wide-voltage multifunctional arc welding machine and storage medium thereof |
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| CN201900364U (en) * | 2010-12-02 | 2011-07-20 | 浙江肯得机电股份有限公司 | Circuit of inversion shielded ace welding machine of single-tube IGBT (insulated gate bipolar transistor) and circuit board structure of circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106270892A (en) * | 2015-06-03 | 2017-01-04 | 徐州市嘉迪汽车电器有限公司 | A kind of fusing soldering welder of motor copper conductor |
| CN111992847A (en) * | 2020-08-27 | 2020-11-27 | 上海沪工焊接集团股份有限公司 | Control method and device for wide-voltage multifunctional arc welding machine and storage medium thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103722319B (en) | 2015-12-30 |
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