CN108907404B - Electric welding machine and control mechanism - Google Patents
Electric welding machine and control mechanism Download PDFInfo
- Publication number
- CN108907404B CN108907404B CN201810966991.7A CN201810966991A CN108907404B CN 108907404 B CN108907404 B CN 108907404B CN 201810966991 A CN201810966991 A CN 201810966991A CN 108907404 B CN108907404 B CN 108907404B
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- welding
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- output part
- voltage
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- 238000003466 welding Methods 0.000 title claims abstract description 110
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
Abstract
The invention relates to the technical field of welding, in particular to an electric welding machine and a control mechanism. The power part is used for providing three-phase voltage, and the three-phase voltage is rectified through a rectifier bridge and then is output to be used as the common input of the inversion output part and the welding output part. One part of the bus voltage input frequency converter is converted into alternating current as the output of the inversion output part to supply power for other equipment, and the other part is output as the welding output part through voltage reduction for welding. According to the scheme, the inversion output part and the welding output part share one rectifier bridge, and the inversion output part and the welding output part share the frequency converter, so that the size of the electric welding machine is reduced well, and the assembly is simpler.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an electric welding machine and a control mechanism.
Background
The electric welding machine on the market comprises an inversion output part and a welding output part, wherein the inversion output part comprises an inverter, the welding output part comprises a transformer, the electric welding machine is rectified by a first rectifier bridge and then input into the inverter, the inverter converts the direct current into alternating current so as to supply power for other equipment, in addition, the electric welding machine is rectified by a second rectifier bridge and then input into the transformer, and the transformer is used for carrying out step-down treatment on the direct current voltage and then outputting the step-down voltage for welding electrodes. Therefore, in the prior art, two rectifier bridges are required to be installed in the electric welding machine to respectively process the power output by the engine and then respectively input the power to the inversion output part and the welding output part, and the inversion output part and the welding output part are independently arranged, so that the assembly of the electric welding machine is complicated, the efficiency is low, and the volume is larger.
Disclosure of Invention
The invention aims to provide an electric welding machine, which is used for achieving the purposes of simple assembly and reduced volume.
Another object of the present invention is to provide a control mechanism for achieving the purpose of simple assembly and reduced volume.
In order to achieve the above object, the technical scheme adopted by the embodiment of the invention is as follows:
In a first aspect, an embodiment of the present invention provides an electric welding machine, where the electric welding machine includes a rectifier bridge, a power portion, and a frequency converter, and the electric welding machine includes an inverter output portion and a welding output portion, where the inverter output portion and the welding output portion share the frequency converter; the power part is used for providing three-phase voltage, the three-phase voltage outputs bus voltage after being rectified through the rectifier bridge to be used as common input of the inversion output part and the welding output part, one part of bus voltage input to the frequency converter is converted into alternating current to be used as output of the inversion output part to supply power for other equipment, and the other part of bus voltage is used as output of the welding output part to be used for welding through voltage reduction.
Further, the power section includes a motor stator and a motor rotor for collectively providing a three-phase voltage.
Further, the frequency converter is an integrated arrangement of an inverter and a transformer, and converts a part of input bus voltage into standard sine wave alternating current to supply power for other equipment, and the other part is used for welding through voltage reduction.
Further, the inversion output section is configured to output an alternating current to power other devices.
Further, the welding output portion is for outputting a direct current to weld the welding bar.
In a second aspect, an embodiment of the present invention further provides a control mechanism, where the control mechanism is applied to an electric welding machine, and the control mechanism includes a rectifier bridge, a power portion, and a frequency converter, where the power portion is used to provide three-phase voltage, the three-phase voltage is rectified by the rectifier bridge and then output a bus voltage, and the bus voltage is input to the frequency converter, where a portion of the bus voltage is converted into ac to supply power to other devices, and another portion of the bus voltage is reduced to be used for welding.
Further, the power section includes a motor stator and a motor rotor for collectively providing a three-phase voltage.
Further, the frequency converter is an integrated arrangement of an inverter and a transformer, and converts a part of input bus voltage into standard sine wave alternating current to supply power for other equipment, and the other part is used for welding through voltage reduction.
Further, the frequency converter converts a part of the input bus voltage into alternating current as an output of an inversion output part provided in the electric welding machine to supply power to other devices.
Further, the inverter steps down a part of the input bus voltage to output direct current as an output of a welding output portion provided in the electric welding machine for welding.
The embodiment of the invention provides an electric welding machine and a control mechanism, wherein the electric welding machine comprises a rectifier bridge, a power part and a frequency converter, the electric welding machine comprises an inversion output part and a welding output part, and the inversion output part and the welding output part share the frequency converter. The power part is used for providing three-phase voltage, and the three-phase voltage is rectified through a rectifier bridge and then is output to be used as the common input of the inversion output part and the welding output part. One part of the bus voltage input frequency converter is converted into alternating current as the output of the inversion output part to supply power for other equipment, and the other part is output as the welding output part through voltage reduction for welding. According to the scheme, the inversion output part and the welding output part share one rectifier bridge, and the inversion output part and the welding output part share the frequency converter, namely, the frequency converter can convert direct current into alternating current for power supply, and can also carry out step-down treatment on the direct current for welding, so that the size of the electric welding machine is reduced well, and the assembly is simpler.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic diagram of a control mechanism according to an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a power portion according to an embodiment of the present invention.
Fig. 3 shows a schematic structural diagram of a frequency converter according to an embodiment of the present invention.
Fig. 4 shows a schematic structural diagram of an electric welding machine according to an embodiment of the present invention.
The diagram is: 10-a control mechanism; 100-power section; 200-rectifying bridge; 300-frequency converter; 110-motor stator; 120-motor rotor; 310-an inverter; 320-a transformer; 20-an electric welding machine; 400-an inversion output section; 500-welding output section.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
The electric welding machine currently in use includes an inverter output portion for outputting an alternating current to power other equipment, and a welding output portion for outputting a direct current of a suitable voltage magnitude to weld a welding bar. However, when the electric welding machine provides power, the power provided by the electric welding machine is rectified through two rectifier bridges and then is respectively input into the inversion output part and the welding output part for further processing, and the two rectifier bridges are arranged to increase the volume of the electric welding machine and make the installation more troublesome. In addition, the inverter output part processes the input direct current through the inverter, and the welding output part processes the input direct current through the transformer. Therefore, the embodiment of the invention provides the electric welding machine and the control mechanism, which are used for integrating related devices and improving the connection relation and the structure of each device so as to realize the purposes of reducing the volume of the electric welding machine and enabling the assembly to be simpler.
Referring to fig. 1, a schematic diagram of a control mechanism 10 according to an embodiment of the invention is provided, the control mechanism 10 is installed in an electric welding machine, and the control mechanism 10 includes a power portion 100, a rectifier bridge 200 and a frequency converter 300.
Referring to fig. 2, a schematic structural diagram of a power portion 100 according to an embodiment of the present invention is shown, where the power portion 100 includes a motor stator 110 and a motor rotor 120, three-phase voltages are output through the motor stator 110 and the motor rotor 120, and the three-phase voltages are output to a rectifier bridge 200, and a bus voltage is output after the three-phase voltages are rectified by the rectifier bridge 200.
Further, the bus voltage is output to the inverter 300, please refer to fig. 3, which is a schematic structural diagram of the inverter 300 according to an embodiment of the present invention, the inverter 300 includes an inverter 310 and a transformer 320, that is, the inverter 300 is an integrated configuration of the inverter 310 and the transformer 320, which has both the function of the inverter 310 and the function of the transformer 320. Further, the inverter 300 converts a part of the input bus voltage into a standard sine wave ac power to supply power to other devices, and outputs a dc current by voltage reduction to weld the welding bars.
It can be seen that only one rectifier bridge 200 in the control mechanism 10 rectifies the power generated by the power section 100, and the inverter 300 also integrates the functions of the inverter 310 and the transformer 320, so that an input dc voltage can be processed differently to satisfy the functions of charging other devices and welding a welding bar. Compared with the prior art, two different rectifier bridges are needed, and the inverter 310 and the transformer 320 are needed to be used simultaneously, so that the space of the electric welding machine is saved, and the assembly process is reduced.
Referring to fig. 4, a schematic structural diagram of an electric welding machine 20 according to an embodiment of the present invention is provided, the electric welding machine 20 includes an inverter output portion 400 and a welding output portion 500, the inverter output portion 400 is used for outputting an ac current to supply power to other devices, and the welding output portion 500 is used for outputting a dc current after a step-down process of a dc voltage to weld a welding bar. The inverter output section 400 and the welding output section 500 share the inverter 300 to achieve two different functions.
In practice, the power section 100 provides three-phase voltages which are rectified by a rectifier bridge 200 to output bus voltages as common inputs to the inverter output section 400 and the welding output section 500. Further, the inverter 300 converts a part of the bus voltage into an alternating current as an output of the inverter output section 400 to supply power to other devices. In addition, the inverter 300 also steps down another part of the bus voltage to be output as the welding output part 500 for welding the electrode.
It can be seen that the welding bug 20 uses one rectifier bridge 200 to uniformly process the dc voltages input to the inverter output portion 400 and the welding output portion 500, and avoids the rectifier bridge to reduce the size of the welding bug 20. In addition, the inverter output part 400 and the welding output part 500 share the frequency converter 300, thereby realizing the respective functions, and reducing the volume of the welding bug 20, so that the assembly is simpler.
In summary, the electric welding machine and the control mechanism provided by the embodiments of the present invention include a rectifier bridge, a power portion and a frequency converter, where the electric welding machine includes an inversion output portion and a welding output portion, and the inversion output portion and the welding output portion share the frequency converter. The power part is used for providing three-phase voltage, and the three-phase voltage is rectified through a rectifier bridge and then is output to be used as the common input of the inversion output part and the welding output part. One part of the bus voltage input frequency converter is converted into alternating current as the output of the inversion output part to supply power for other equipment, and the other part is output as the welding output part through voltage reduction for welding. According to the scheme, the inversion output part and the welding output part share one rectifier bridge, and the inversion output part and the welding output part share the frequency converter, namely, the frequency converter can convert direct current into alternating current for power supply, and can also carry out step-down treatment on the direct current for welding, so that the size of the electric welding machine is reduced well, and the assembly is simpler.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Claims (6)
1. The electric welding machine is characterized by comprising a rectifier bridge, a power part and a frequency converter, wherein the electric welding machine comprises an inversion output part and a welding output part, and the inversion output part and the welding output part share the frequency converter;
The power part is used for providing three-phase voltage, the three-phase voltage outputs bus voltage after being rectified through the rectifier bridge to be used as common input of the inversion output part and the welding output part, the frequency converter is integrated with the inverter and the transformer, the frequency converter converts one part of the input bus voltage into standard sine wave alternating current to be used as output of the inversion output part to supply power for other equipment, and the frequency converter reduces the other part of the input bus voltage to be used as output of the welding output part to be used for welding.
2. The welding bug of claim 1 wherein the power portion comprises a motor stator and a motor rotor for collectively providing a three-phase voltage.
3. The welding machine of claim 1, wherein the welding output portion is configured to output a direct current to weld the weld.
4. The utility model provides a control mechanism, control mechanism is applied to the electric welding, its characterized in that, control mechanism includes a rectifier bridge, power part and converter, power part is used for providing three-phase voltage, three-phase voltage passes through the rectifier bridge carries out rectification back output busbar voltage, the converter is the integrated setting of dc-to-ac converter and transformer, the converter is with the busbar voltage of input part conversion standard sine wave alternating current in order to supply power for other equipment, the converter is with another part of input busbar voltage through the step down for welding.
5. The control mechanism of claim 4, wherein the power section includes a motor stator and a motor rotor for collectively providing a three-phase voltage.
6. The control mechanism as recited in claim 4 wherein said inverter steps down a portion of an input bus voltage to output dc power as an output of a welding output section provided in said welder for welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966991.7A CN108907404B (en) | 2018-08-23 | 2018-08-23 | Electric welding machine and control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966991.7A CN108907404B (en) | 2018-08-23 | 2018-08-23 | Electric welding machine and control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108907404A CN108907404A (en) | 2018-11-30 |
| CN108907404B true CN108907404B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810966991.7A Active CN108907404B (en) | 2018-08-23 | 2018-08-23 | Electric welding machine and control mechanism |
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| Country | Link |
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| CN (1) | CN108907404B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689079A (en) * | 2011-03-22 | 2012-09-26 | 上海控源电子科技有限公司 | Digital generating electric welding machine |
| CN102825361A (en) * | 2012-09-17 | 2012-12-19 | 邓小健 | Portable multifunctional field operation electric welding machine |
| CN103492115A (en) * | 2011-02-22 | 2014-01-01 | 林肯环球股份有限公司 | Welding system with rotational speed converter for auxiliary power generator and method of operating the welding system |
| CN203423579U (en) * | 2013-08-30 | 2014-02-05 | 维尔纳（福建）电机有限公司 | Electric generating and electric welding dual-purpose machine |
| CN106112214A (en) * | 2016-08-23 | 2016-11-16 | 浙江肯得机电股份有限公司 | A kind of structure of two welding functional module IGBT inverter type welders |
| CN208895359U (en) * | 2018-08-23 | 2019-05-24 | 隆鑫通用动力股份有限公司 | It powers welded condenser discharge welder and control mechanism |
-
2018
- 2018-08-23 CN CN201810966991.7A patent/CN108907404B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103492115A (en) * | 2011-02-22 | 2014-01-01 | 林肯环球股份有限公司 | Welding system with rotational speed converter for auxiliary power generator and method of operating the welding system |
| CN102689079A (en) * | 2011-03-22 | 2012-09-26 | 上海控源电子科技有限公司 | Digital generating electric welding machine |
| CN102825361A (en) * | 2012-09-17 | 2012-12-19 | 邓小健 | Portable multifunctional field operation electric welding machine |
| CN203423579U (en) * | 2013-08-30 | 2014-02-05 | 维尔纳（福建）电机有限公司 | Electric generating and electric welding dual-purpose machine |
| CN106112214A (en) * | 2016-08-23 | 2016-11-16 | 浙江肯得机电股份有限公司 | A kind of structure of two welding functional module IGBT inverter type welders |
| CN208895359U (en) * | 2018-08-23 | 2019-05-24 | 隆鑫通用动力股份有限公司 | It powers welded condenser discharge welder and control mechanism |
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| Publication number | Publication date |
|---|---|
| CN108907404A (en) | 2018-11-30 |
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