KR20040100787A - An inverter welding machine's converter - Google Patents
An inverter welding machine's converter Download PDFInfo
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- KR20040100787A KR20040100787A KR1020030033537A KR20030033537A KR20040100787A KR 20040100787 A KR20040100787 A KR 20040100787A KR 1020030033537 A KR1020030033537 A KR 1020030033537A KR 20030033537 A KR20030033537 A KR 20030033537A KR 20040100787 A KR20040100787 A KR 20040100787A
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- South Korea
- Prior art keywords
- welding machine
- current transformer
- welding
- wire
- winding
- Prior art date
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- 238000003466 welding Methods 0.000 title claims abstract description 38
- 238000004804 winding Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000010953 base metal Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
- F16B21/086—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/12—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
Description
본 발명은 인버터 용접기의 변류기에 관한 것으로, 더욱 상세하게는 변류기 내부에 권취되는 권선의 좌우측면과 외주면에 실드판을 게재함으로써 외부로부터의 전자파를 차단하여 용접기의 오동작을 방지할 수 있는 인버터 용접기용 변류기에 관한 것이다.The present invention relates to a current transformer of the inverter welding machine, and more particularly, for the inverter welding machine that can prevent the malfunction of the welding machine by blocking the electromagnetic waves from the outside by placing a shield plate on the left and right sides and the outer peripheral surface of the winding wound inside the current transformer. It is about a current transformer.
용접이란 두 개의 금속을 용융 또는 반용융 상태에서 접합하는 것으로, 접합효율이 좋고, 보수하기 쉬우며, 설비비가 싸다는 장점이 있다.Welding is the joining of two metals in a molten or semi-melted state, and has the advantages of good joining efficiency, easy repair, and low equipment cost.
이러한 용접 기술은 전기 용접과 가스 용접으로 구분되며, 전기 용접은 전기적으로 접합부를 가열하는 방법으로서 가열 방식에 따라 저항 용접, 유도 용접, 아크 용접으로 나뉘고, 용접기의 종류는 인버터형과, 실리콘 제어형과, 가동철심형으로 구분되어 있으나, 최근에는 인버터 용접기의 사용이 급속히 확대되어 가고 있다.These welding technologies are divided into electric welding and gas welding. Electric welding is a method of electrically heating a joint. The electric welding is divided into resistance welding, induction welding and arc welding according to the heating method. In addition, it is divided into movable core type, but recently, the use of inverter welding machine is rapidly expanding.
통상의 인버터 아크 용접기는 용접봉이 피용접물에 접촉되었을 때 용접기 2차측 권선으로 회로가 구성되고 이때 미세한 전류가 흐르게 되어 이 미세한 전류에 의한 전기 자력선을 변류기에서 검출하고 다시 증폭기를 사용하여 솔레노이드를 작동시켜 전원을 연결함으로써 용접봉과 피용접물 사이에 아크방전을 발생시켜 용접을 하게된다.Conventional inverter arc welding machine is composed of a circuit of the secondary winding of the welding machine when the electrode is in contact with the welded object. At this time, a minute current flows, and the electric magnetic lines caused by the minute current are detected at the current transformer and the solenoid is operated again using an amplifier. By connecting the power source, arc discharge is generated between the welding rod and the object to be welded.
그런데, 도 1에서와 같이 종래의 변류기는 내부의 권선 외부를 1차적인 PVC재질의 절연케이스로만 밀폐시킴으로써 주변의 다른 용접기 또는 전원기기에 흐르는 전류에 의한 전자기파의 영향을 받아 용접기의 회로에 전달되어 장애가 발생하고 용접기가 오동작 하는 등의 문제점이 있었다.However, as shown in FIG. 1, the conventional current transformer is sealed by only an insulation case made of a primary PVC material, and is transmitted to a circuit of a welding machine under the influence of electromagnetic waves caused by current flowing in other welding machines or power supplies. There was a problem such as a failure occurs and the welder malfunctions.
상기와 같은 문제점을 해결하기 위하여 안출된 본 발명은, 절연케이스 내에 2차 권선을 수납한 후 덮개를 복착하는 공지의 변류기에 있어서, 상기 2차 권선의 좌우측면과 외주면에 특수 가공된 비도전성 실드판을 게재함으로써 2차 권선을 외부로부터의 자장의 영향을 받지 않도록 하는 인버터 용접기용 변류기를 제공함에 있다.In order to solve the above problems, the present invention, in a known current transformer for storing a secondary winding in an insulating case and then wearing a cover, a non-conductive shield specially processed on the left and right sides and the outer peripheral surface of the secondary winding The present invention provides a current transformer for an inverter welder by placing a plate so that the secondary winding is not affected by an external magnetic field.
도 1은 종래의 인버터 용접기용 변류기의 분해사시도.1 is an exploded perspective view of a current transformer for a conventional inverter welder.
도 2는 본 발명에 따른 인버터 용접기용 변류기의 분해사시도.Figure 2 is an exploded perspective view of a current transformer for an inverter welder according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1 : 2차 권선 2 : 덮개1: secondary winding 2: cover
3 : 절연케이스 4 : 관통공3: insulation case 4: through-hole
5a,5b,5c : 실드판 6 : 전원단자 인출구5a, 5b, 5c: Shield plate 6: Power terminal outlet
7 : 전원단자 인출구 덮개7: power terminal outlet cover
인버터 용접기는 안정된 아크를 발생시키기 위하여 어느 정도 높은 무부하 전압을 필요로 하며 출력측 케이블이 긴 경우에는 전압강하를 고려하여 전압이 높아지는 경향이 있다. 통상 500A 용량의 것은 95V 이하, 400A 이하의 것은 85V 이하로 규정하고 있으나 이 정도의 전압이라도 치명적인 위험성이 있다. 따라서 무부하시에 출력측 전압을 안전전압인 25V(전압변동 고려시 30V) 이하로 낮출 필요성이 있다Inverter welding machine requires a certain high no-load voltage in order to generate a stable arc, and when the output cable is long, the voltage tends to be high in consideration of the voltage drop. Normally, 500A capacity is specified as 95V or less, 400A or less is specified to 85V or less, but even a voltage of such a degree may be fatal. Therefore, it is necessary to lower the output voltage below 25V (30V when considering voltage fluctuation) which is the safety voltage under no load.
무부하시에는 보조변압기에 의해 홀더 및 용접봉에 25V 이하의 전압이 가해지고 있으므로 인체가 접촉이 되어도 위험은 없다. 용접봉을 모재에 접촉하면 보조변압기의 2차 회로에 전류가 흐르고 이 전류를 변류기로 검출하여 제어장치로 보내면 제어장치의 특수한 릴레이가 동작하여 솔레노이드가 작동되면서 용접기 2차측에 용접에 필요한 전압이 가해져서 아크가 발생한다. 다음에 용접봉을 모재에서 떼면 아크가 끊어지고 용접기 2차측이 개방되어 2차측에 전류가 흐르지 않으면 변류기에도 전류가 흐르지 않게 되어 솔레노이드가 작동하지 않으면서 전원이 떨어지게 되어 홀더 및 용접봉에는 보조변압기의 2차 전압인 안전전압 25V가 된다.At no load, a voltage of 25 V or less is applied to the holder and the welding rod by the auxiliary transformer, so there is no danger of human contact. When the electrode contacts the base metal, current flows in the secondary circuit of the auxiliary transformer, and this current is detected by the current transformer and sent to the control device.A special relay of the control device operates to operate the solenoid and apply the necessary voltage to the secondary side of the welder. An arc occurs. The next time the welding rod is removed from the base metal, the arc is broken and the secondary side of the welding machine is opened. If no current flows in the secondary side, no current flows through the current transformer, and the power is turned off without the solenoid operating. The safety voltage of 25V is obtained.
그런데, 작업장에서 용접기를 여러 대 사용할 때 도 1에서와 같이 변류기의 권선외부가 1차적인 절연케이스 및 덮개로만 밀폐되어 있는 경우 사용되는 타용접기의 케이블에 흐르는 전류에 의한 전기자력선의 영향을 사용하지 않는 용접기에 변류기의 권선이 받게되어 면전류를 발생시켜 솔레노이드를 작동시킴으로써 사용하지 않는 용접기일지라도 오동작을 일으키게 되는 것이다.However, when multiple welding machines are used in the workplace, as shown in FIG. 1, the influence of the electric magnetic lines caused by the current flowing through the cable of the other welding machine used when the winding outside of the current transformer is sealed only with the primary insulation case and the cover is not used. If the welding machine does not receive the winding of the current transformer and generates a surface current to operate the solenoid, even the welding machine which is not used causes malfunction.
이하에서는 첨부 도면을 참조하여 상기 문제점을 해결하기 위한 본 발명의 가장 바람직한 일 실시예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention for solving the above problems.
도 2는 본 발명에 따른 변류기의 분해사시도로서, 본 고안은 2차 권선(1)이 권취된 변류기에 있어서, 2차 권선(1)의 좌우측면과 외주면에 실드판(5a)(5b)(5c)을 착설하고 그 외부에 절연케이스(3) 및 덮개(2)를 형성시켜서 된 것이다.Figure 2 is an exploded perspective view of the current transformer according to the present invention, the present invention is a current transformer in which the secondary winding 1 is wound, the shield plate (5a) (5b) (on the left and right sides and the outer peripheral surface of the secondary winding 1 ( 5c) is installed and the insulating case 3 and the cover 2 are formed in the outside.
이때 실드판은 서로 밀착되어지면서 권선(1)이 완전 외부와 차단되어지는 것이다.At this time, the shield plate is in close contact with each other while the winding 1 is completely cut off from the outside.
또한 상기 절연케이스(3) 및 덮개(2)는 PVC 재질로 이루어져 있으며, 환형 감삽턱(2a)(3a)이 형성되어 상기 환형 감삽턱(2a)(3a)끼리의 착탈자재에 의해 별도의 용착공정없이 간단히 변류기의 조립이 가능하다.In addition, the insulating case (3) and the cover (2) is made of a PVC material, and the annular subtracting jaw (2a) (3a) is formed to separate the welding by the detachable material between the annular subtracting jaw (2a) (3a) It is possible to assemble the current transformer simply without the process.
또한 상기 절연케이스(3) 및 덮개(2) 소정의 직경 및 두께를 갖는 링(원통) 형상으로 형성되어 있으며, 그 내경이 소정의 직경으로 관통된 관통공(4)으로, 1차 부하전선이 관통공(4)을 통과할 수 있는 충분한 공간이 마련되어 있다.In addition, the insulating case 3 and the cover 2 are formed in a ring (cylindrical) shape having a predetermined diameter and thickness, and the inner load is a through hole 4 having a predetermined diameter. Sufficient space is provided to pass through the through hole 4.
상기 실드판(5a)(5b)(5c)은 외부로부터의 전자기적 외란을 차폐하여 권선(1)을 보호하기 위한 것으로, 투자율이 높은 냉간압연강판 등의 금속박막으로 이루어져 프레스 성형에 의해 도시한 바와 같은 형상으로 가공된 것이다.The shield plates 5a, 5b and 5c are used to shield the windings 1 by shielding electromagnetic disturbances from the outside. The shield plates 5a, 5b and 5c are made of a metal thin film such as a cold rolled steel sheet having a high permeability. It is processed into the shape as shown.
따라서 사용중인 용접기의 케이블에 흐르는 전류에 의한 전기자력선의 영향을 사용하지 않는 용접기의 변류기가 받지 않도록 2중으로 차단하게 되므로 사용하지 않는 용접기의 오동작을 방지할 수 있는 것이다.Therefore, it is possible to prevent the malfunction of the welder that is not used because it is blocked twice so that the current transformer of the welder does not use the influence of the electric magnetic lines due to the current flowing through the cable of the welder in use.
상술한 실시예에 의한 본 발명이 한정되는 것은 아니며 본 발명이 속하는 기술분야에서 통상의 지식을 갖는 자에 의해 본 발명의 기술사상의 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.The present invention is not limited to the above embodiments, and various modifications and variations are possible within the scope of the technical idea of the present invention by those skilled in the art.
상술한 바와 같이 본 발명에 의하면 전선에 흐르는 전자파를 차단하여 용접기 회로에 순수한 신호만 전달하여 주기 때문에 회로를 보호하고, 용접기의 원활한 출력조정이 가능하게 된다.As described above, according to the present invention, since only the pure signal is transmitted to the welder circuit by blocking electromagnetic waves flowing through the wire, the circuit is protected and smooth output adjustment of the welder is possible.
따라서, 용접 시공시 원활한 전류를 공급함으로써 용접부위가 고르게 용접이 되는 것이다.Therefore, the welding part is welded evenly by supplying a smooth current during welding construction.
또한, 두 대 이상의 용접기를 사용하는 곳에서 사용하는 용접기에 의한 외부 자장으로 인해 사용하지 않는 용접기의 변류기가 오동작 되는 것을 방지하는 효과가 있다.In addition, there is an effect of preventing the current transformer of the unused welder malfunction due to the external magnetic field by the welder used in the place where two or more welders are used.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030031937 | 2003-05-20 | ||
| KR20030031937 | 2003-05-20 |
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| Publication Number | Publication Date |
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| KR20040100787A true KR20040100787A (en) | 2004-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020030033537A KR20040100787A (en) | 2003-05-20 | 2003-05-27 | An inverter welding machine's converter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017049182A (en) * | 2015-09-03 | 2017-03-09 | 日立金属株式会社 | Leak detector |
| CN106583887A (en) * | 2016-12-15 | 2017-04-26 | 保定天威电气设备结构有限公司 | Magnetic shielding welding cracking prevention method for power transformer oil tank |
| WO2017099502A1 (en) * | 2015-12-11 | 2017-06-15 | 주식회사 아모그린텍 | Magnetic-shield-type converter |
-
2003
- 2003-05-27 KR KR1020030033537A patent/KR20040100787A/en not_active Application Discontinuation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017049182A (en) * | 2015-09-03 | 2017-03-09 | 日立金属株式会社 | Leak detector |
| WO2017099502A1 (en) * | 2015-12-11 | 2017-06-15 | 주식회사 아모그린텍 | Magnetic-shield-type converter |
| CN108369857A (en) * | 2015-12-11 | 2018-08-03 | 阿莫绿色技术有限公司 | Magnetic screen type current transformer |
| JP2019505090A (en) * | 2015-12-11 | 2019-02-21 | アモグリーンテック カンパニー リミテッド | Magnetically shielded current transformer |
| EP3389061A4 (en) * | 2015-12-11 | 2019-08-14 | Amogreentech Co., Ltd. | Magnetic-shield-type converter |
| US10600563B2 (en) | 2015-12-11 | 2020-03-24 | Amogreentech Co., Ltd. | Magnetic-shield-type converter |
| JP2020191466A (en) * | 2015-12-11 | 2020-11-26 | アモグリーンテック カンパニー リミテッド | Magnetically shielded current transformer |
| CN114171301A (en) * | 2015-12-11 | 2022-03-11 | 阿莫绿色技术有限公司 | Magnetic shielding type current transformer |
| CN114171301B (en) * | 2015-12-11 | 2023-11-21 | 阿莫绿色技术有限公司 | Magnetic shielding type current transformer |
| CN106583887A (en) * | 2016-12-15 | 2017-04-26 | 保定天威电气设备结构有限公司 | Magnetic shielding welding cracking prevention method for power transformer oil tank |
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