KR100262284B1 - Method of producing a transformer - Google Patents

Method of producing a transformer Download PDF

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Publication number
KR100262284B1
KR100262284B1 KR1019970056570A KR19970056570A KR100262284B1 KR 100262284 B1 KR100262284 B1 KR 100262284B1 KR 1019970056570 A KR1019970056570 A KR 1019970056570A KR 19970056570 A KR19970056570 A KR 19970056570A KR 100262284 B1 KR100262284 B1 KR 100262284B1
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South Korea
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case
pins
pin
coil
current transformer
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KR1019970056570A
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Korean (ko)
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KR19990034860A (en
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박이락
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박이락
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/28Current transformers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

PURPOSE: A method of producing a zero-close current transformer is provided to be capable of excluding a pin cutting process and enhancing the dimension accuracy by using pins of constant length, of preventing the damage of a coil by dipping the pins having the coil wound, and of remarkably enhancing the flatness against the attachment surface with an electronic circuit board by extracting the pins toward a flat case surface. CONSTITUTION: First, two pins(1) of constant length are inserted into two through holes(5) formed a case(3) of a central column(4). Then, a winding core(2) is coupled to the central column(4) of the case(3), and then coil lines are wound on the upper parts of the pins(1) to be dipped. At this status, the pins(1) are downwardly pushed to pass through the case(3) and then epoxy(6) is injected into the case for molding.

Description

영상변류기의 제조방법Manufacturing Method of Image Current Transformer

본 발명은 영상변류기(Zero-close Current Transformer)를 제조하는 방법에 관한 것으로, 더욱 상세하게는 일정 길이의 핀을 사용하도록 하여 핀컷팅작업의 생략, 정확한 치수로 제조, 자동삽입을 가능하게 할 수 있을 뿐만 아니라 코일소손을 방지하고 작업시간의 개선과 아울러 공장자동화를 도모할 수 있도록 하는 영상변류기의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a zero-close current transformer, and more specifically, to use a pin of a certain length, it is possible to omit the pin-cutting work, to manufacture with accurate dimensions, automatic insertion In addition, the present invention relates to a method of manufacturing a current transformer that prevents coil burnout, improves working time, and enables factory automation.

일반적으로 변압기는 2개이상의 권선과 공통의 자로(磁路)로 이루어지고, 자기유도작용에 의해 1차의 권선에 받았던 교류전력을 2차의 권선으로 전달하는 정지유도기(Stationary Induction Apparatus)인 바, 이는 권선과 자로의 배치에 의해 내철형과 외철형으로 구별된다.In general, a transformer is a stationary induction apparatus that consists of two or more windings and a common magnetic path, and transfers the AC power received from the primary winding to the secondary winding by magnetic induction. , It is distinguished into inner type and outer type by the arrangement of windings and gyros.

그리고, 계기용 변성기(Instrument Transformer)는 전압이나 전류를 측정, 제어하기에 편리한 값으로 변성하기 위해 사용되는 것이다.Instrument transformers are used to convert voltages or currents to values that are convenient to measure and control.

상기 계기용 변성기를 대별하면 전류를 변성하는 변류기와 전압을 변성하는 계기용 변압기로 나누어진다.The instrument transformer is divided into a current transformer for modifying current and an instrument transformer for modifying voltage.

한편, 전기선로상에 설치되어 작동되는 산업용 누전차단기의 한 부분품으로 사용되는 영상변류기는 내부의 콘트롤러인 전자회로기판에 부착되어, 선로누전시 이를 영상변류기에서 언바란스를 감지하여 트립디바이스의 구동, 즉 트립코일이 자력화되어 온상태로 위치되어 있는 손잡이노브를 자동으로 오프시기도록 되어 있다.On the other hand, the video current transformer used as a part of the industrial earth leakage breaker installed and operated on the electric line is attached to the electronic circuit board which is an internal controller, and when the line leakage occurs, it detects the unbalance in the video current transformer and drives the trip device. The trip coil is automatically magnetized to turn off the knob knob which is positioned on.

이상과 같이 작동되는 영상변류기는 도3과 같은 제조공정으로 제조되어 산업용 누전차단기에 설치하게 된다.The image current transformer operated as described above is manufactured in the manufacturing process as shown in FIG. 3 and installed in an industrial earth leakage breaker.

먼저, 도3(a)는 코일 솔더링(Coil Soldering)공정으로서 코일(10)을 2개의 핀(11)에 감은 다음 솔더링하게 되고, 이때 솔더링은 작업자가 전기인두 등을 사용하기 때문에 상기 코일(10)의 소손우려가 있고, 핀(11)을 손으로 잡고 하기 때문에 뜨거워져 작업에 힘들고 작업시간이 많이 소요된다는 결점이 발생되었을 뿐만 아니라 인두의 조건 변화, 산화물 처리 주기 등, 납과 인두의 터치 차이 등으로 납땜상태가 불확실한 등의 문제점이 발생된다.First, FIG. 3 (a) shows a coil soldering process, in which a coil 10 is wound around two pins 11 and then soldered. In this case, soldering is performed by an operator using an electric iron. ), And because the pin 11 is held by hand, it becomes hot and difficult to work, and it takes a lot of time, and the difference between the touch of the lead and the iron, such as changes in the conditions of the iron, the cycle of oxide treatment, etc. This causes problems such as uncertainty in soldering state.

도3(b)는 코일(10)과 2개의 핀(11)이 솔더링된 상태로 케이스(13)에 조립하는 공정으로서, 상기 코일(10)의 내측에 케이스(13)의 중앙기둥(14)을 결합하고 핀(11)의 솔더링 부분을 호울(15)에 압입하게 되는데, 이때 핀(11)을 압입할 때 코일(10)이 단선될 우려가 있다.3 (b) shows a process of assembling the case 10 with the coil 10 and the two pins 11 soldered, and the center pillar 14 of the case 13 inside the coil 10. And the soldering part of the pin 11 is pressed into the hole 15, in which case the coil 10 may be disconnected when the pin 11 is pressed in.

따라서, 영상변류기의 최종 공정인 모울딩공정은 도3(b)와 같이 결합된 상태에서 에폭시(16)를 주입하여 도3(c)와 같이 완성하게 되는 바, 주입시 핀(11)에 붙는 현상, 표면장력으로 인하여 핀(11)에 올라 붙고 레벨 오버(Level Over)로 전자회로기판의 부착면이 평탄하게 되지 않아 밀착불량의 발생이 심각하다는 결점이 있었다.Therefore, the molding process, which is the final process of the image current transformer, is completed as shown in FIG. 3 (c) by injecting epoxy 16 in a bonded state as shown in FIG. 3 (b). Due to the phenomenon and surface tension, the pin 11 is attached to the pin 11 and the adhesion surface of the electronic circuit board is not flat due to level over.

특히, 핀형 영상변류기를 사용하는 모든 업체에서 핀길이는 본체에서 2~3㎜로 규정하고 있는 바, 예시된 바와 같은 종래의 방법에 있어 이를 만족하는 핀은 길이가 짧아서 코일을 감을 수가 없고, 억지로 감는대해도 전체 길이가 8㎜정도이므로 취급상 솔더링이 불가하기 때문에 60㎜정도의 핀을 사용하게 됨에따라, 몰딩후에 커팅을 하여야 하는 불편함이 있었다.In particular, in all companies that use a pin-type video current transformer, the pin length is defined as 2 to 3 mm in the main body. In the conventional method as illustrated, the pins satisfying this are short in length and cannot be wound around the coil. Even though winding, the total length is about 8 mm, so soldering is impossible in handling. As a result, a pin of about 60 mm is used, resulting in the inconvenience of cutting after molding.

본 발명은 상기와 같은 종래 영상변류기의 제조방법이 가지고 있는 문제점들을 해소하기 위해 발명한 것으로, 종래와 달리 간단한 자동검사 및 모울딩 뿐만 아니라 대량생산을 위한 제조의 자동화를 이룩할 수 있고, 또 일정 길이의 핀을 사용하여 핀컷팅작업의 생략, 정확한 치수로 제조, 자동삽입을 가능하게 할 수 있을 뿐만 아니라 코일이 권선된 핀을 디핑처리하기 때문에 코일소손을 방지하고 작업시간의 개선, 그리고 평탄한 케이스면측으로 핀이 인출되어 전자회로기판과의 부착면에 대한 평탄도를 현저히 개선시킬 수 있도록 하는 영상변류기의 제조방법을 제공함에 그 목적이 있다.The present invention has been invented to solve the problems of the conventional manufacturing method of the image current transformer as described above, and unlike the prior art can achieve a simple automatic inspection and molding as well as the automation of manufacturing for mass production, and a certain length Pins can be used to eliminate pin cutting operations, to produce accurate dimensions, and to automatically insert inserts, as well as to prevent coil burnout, improve working time, and flat case surface by coiling the coiled pins. It is an object of the present invention to provide a method for manufacturing a current transformer to draw out the pin to the side to significantly improve the flatness of the attachment surface with the electronic circuit board.

도1은 본 발명의 일실시예에 따른 영상변류기의 제조방법을 설명하기 위한 공정도.1 is a process chart for explaining the manufacturing method of the image current transformer according to an embodiment of the present invention.

도2는 본 발명에 의해 제조된 영상변류기의 사시도.Figure 2 is a perspective view of the current transformer produced by the present invention.

도3는 종래의 영상변류기의 제조공정도이다.3 is a manufacturing process diagram of a conventional video current transformer.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 핀 2 : 권선코어1: pin 2: winding core

3 : 케이스 4 : 중앙기둥3 case 4 center column

5 : 호울 6 : 에폭시5: hole 6: epoxy

상기 목적을 달성하기 위한 본 발명의 영상변류기의 제조방법은, 중앙기둥(4)의 케이스(3)에 형성되는 상하구멍이 관통된 2개의 호울(5)로 일정 길이의 핀(1)을 결합하고, 권선코어(2)를 케이스(3)의 중앙기둥(4)에 결합하여 코일선을 핀(1) 상부에 감아 디핑하며, 이어 상기 핀(1) 상부를 눌러 케이스(3)를 관통시킨 후 에폭시(6)를 주입하여 모울딩하도록 하는 것을 그 특징으로 한다.In the manufacturing method of the image current transformer of the present invention for achieving the above object, the pin (1) of a predetermined length is coupled to the two holes (5) through which the upper and lower holes formed in the case (3) of the central column (4). In addition, the winding core 2 is coupled to the central column 4 of the case 3, and the coil wire is wound around the pin 1 to be dipped. Then, the upper part of the pin 1 is pressed to penetrate the case 3. After that, it is characterized in that the molding by injecting the epoxy (6).

도1은 본 발명의 일실시예에 따른 영상변류기의 제조방법을 나타낸 공정도로서, 본 발명에 따른 영상변류기의 제조방법은 일정 길이의 핀(1)을 사용하여 핀컷팅작업의 생략, 정확한 치수로 제조, 자동삽입을 가능하게 할 수 있을 뿐만 아니라 코일이 권선된 핀을 디핑처리하기 때문에 코일소손의 방지와 작업시간의 개선을 도모할 수 있도록 되어 있다.1 is a process chart showing a manufacturing method of the image current transformer according to an embodiment of the present invention, the manufacturing method of the image current transformer according to the present invention by using a pin (1) of a predetermined length of the pin-cutting operation, to the exact dimensions In addition to enabling manufacturing and automatic insertion, the coils are dipping the winding pins to prevent coil burnout and improve working time.

도1(a)는 핀삽입공정으로서, 중앙기둥(4)과 상하구멍이 관통된 2개의 호울(5)이 형성되어 있는 케이스(3)의 2개의 호울(5)에 일정 길이의 핀(1)을 결합한다. 여기서 핀(1)은 종래와 달리 정확한 칫수의 핀(1)들을 사용하기 때문에 자동화에 따른 케이스(3)의 호울(5)과의 자동삽입이 가능하게 된다.Fig. 1 (a) shows a pin insertion process in which a pin 1 of a predetermined length is formed in two holes 5 of a case 3 in which a center column 4 and two holes 5 through which upper and lower holes penetrate are formed. ). Here, since the pin 1 uses pins 1 of the correct dimension differently from the prior art, the pin 1 can be automatically inserted into the hole 5 of the case 3 according to the automation.

도1(b)는 권선코어(2)의 삽입과 코일의 디핑공정을 나타내는 것으로서, 상기 권선코어(2)를 케이스(3)의 중앙기둥(4)에 결합한 다음 코일의 양단을 핀(1)상부에 각각 감아 디핑한다. 이 공정에서는, 종래의 솔더링작업이 핀을 잡은 상태에서 뜨겁기 때문에 디핑이 어려워 핀 1개씩 납땜인두로 솔더링을 하고 있던 것과는 달리, 디핑으로 처리하기 때문에 코일소손을 방지할 수 있고 작업시간을 개선할 수 있게 된다.FIG. 1 (b) shows the insertion of the winding core 2 and the dipping process of the coil. The winding core 2 is coupled to the central column 4 of the case 3 and then both ends of the coil are connected to the pin 1. Wind and dipped each on top. In this process, since the conventional soldering operation is hot while holding the pins, dipping is difficult and unlike the soldering irons soldered one by one, the dipping process prevents coil burnout and improves working time. Will be.

도1(c)는 케이스(3)에 권선코어(4)가 결합되고 핀(1) 상부가 디핑된 상태에서, 상기 핀(1) 상부를 누르므로 자동검사와 더불어 케이스(3) 하부로 관통되어, 케이스(3)의 상부를 에폭시(6)로 주입하여 모울딩하게 된다.Figure 1 (c) is a case in which the winding core 4 is coupled to the case 3 and the upper part of the pin 1 is dipped, so the upper part of the pin 1 is pressed, so that it passes through the lower part of the case 3 together with the automatic inspection. Then, the upper part of the case 3 is injected into the epoxy 6 to mold.

이때, 도1(b)에 도시된 바와 같이 케이스(3)에 1차 삽입된 핀(1) 상부에 코일이 감아져 디핑한다음 2차 핀(1) 상부를 압입(이때 검사가 됨)하면 도1(c)와 같이 핀(1) 상부가 케이스(3) 호울(5)을 견고하게 파고 들게 되기때문에 에폭시 누설을 방지할 수 있게 된다.At this time, as shown in (b) of FIG. 1, when the coil is wound around the upper part of the pin 1 inserted into the case 3 and dipped, the second pin 1 is press-fitted (in this case, the test is performed). As shown in FIG. 1C, the upper portion of the pin 1 digs firmly into the case 3 hole 5, thereby preventing epoxy leakage.

따라서, 종래의 제조방법과 달리 본 발명에 따른 영상변류기의 제조 방법은 평탄한 케이스(3)면으로 핀(1)이 인출되도록 하고 있으므로(도2참조), 전자회로기판(도시되지 않음)에 부착하는 면의 평탄도를 현저히 개선시킬 수 있다.Therefore, unlike the conventional manufacturing method, the manufacturing method of the image current transformer according to the present invention allows the pin 1 to be drawn out to the flat case 3 surface (see FIG. 2), and thus is attached to an electronic circuit board (not shown). The flatness of the surface can be significantly improved.

또한, 본 발명의 제조방법으로 만들어진 영상빈류기는 도2와 같이 완성되어 예컨대 산업용 누전차단기에 설치되는 바, 도1과 같은 공정으로 영상변류기를 제조하게 되면 종래의 제조방법이 안고 있던 문제점을 완전히 해결하여 검사, 모울딩 및 자동화 등을 이룩할 수 있는 잇점이 있다.In addition, the image vaccinator made by the manufacturing method of the present invention is completed as shown in Figure 2, for example, installed in an industrial earth leakage breaker, if the image current transformer is manufactured by the process as shown in Figure 1 completely solves the problems of the conventional manufacturing method. There is an advantage that can achieve inspection, molding and automation.

이상 설명한 바와 같이 본 발명에 의하면, 종래와 달리 간단한 검사 및 모울딩 뿐만 아니라 대량생산을 위한 제조자동화를 이룩할 수 있고, 또 일정 길이의 핀을 사용하여 핀컷팅작업의 생략, 정확한 치수로 제조, 자동삽입을 가능하게 할 수 있을 뿐만 아니라 디핑작업으로 코일소손을 방지하고 작업시간의 개선, 그리고 평탄한 케이스면에 핀이 인출되도록 하여 전자회로기판과의 부착면을 현저히 개선시킬 수 있는 영상변류기를 제조하는 방법을 제공할 수 있다.As described above, according to the present invention, unlike the prior art, it is possible to achieve not only simple inspection and molding but also manufacturing automation for mass production. In addition to enabling insertion, it is possible to prevent coil burnout by dipping, to improve working time, and to draw out pins on a flat case surface to manufacture an image current transformer that can significantly improve the attachment surface with an electronic circuit board. It may provide a method.

Claims (1)

중앙기둥(4)의 케이스(3)에 형성되는 상하구멍이 관통된 2개의 호울(5)로 일정 길이의 핀(1)을 결합하고, 권선코어(2)를 케이스(3)의 중앙기둥(4)에 결합한다음 코일선을 핀(1)상부에 감아 디핑하며, 이어 상기 핀(1) 상부를 눌러 케이스(3)를 관통시킨 후 에폭시(6)를 주입하여 모울딩한 것을 특징으로 하는 영상변류기의 제조방법.The pins 1 of a predetermined length are coupled to the two holes 5 through which the upper and lower holes formed in the case 3 of the center column 4 pass, and the winding core 2 is connected to the center column of the case 3. 4) and then coil the coil wire to the upper part of the pin (1), and then press the upper part of the pin (1) to penetrate the case (3) and then injected by molding the epoxy (6) Method of manufacturing a current transformer.
KR1019970056570A 1997-10-30 1997-10-30 Method of producing a transformer KR100262284B1 (en)

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Application Number Priority Date Filing Date Title
KR1019970056570A KR100262284B1 (en) 1997-10-30 1997-10-30 Method of producing a transformer

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Application Number Priority Date Filing Date Title
KR1019970056570A KR100262284B1 (en) 1997-10-30 1997-10-30 Method of producing a transformer

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KR19990034860A KR19990034860A (en) 1999-05-15
KR100262284B1 true KR100262284B1 (en) 2000-07-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101043173B1 (en) * 2010-11-08 2011-06-20 임장수 Zero phase current transformer and method of manufacturing the same
KR101161019B1 (en) * 2010-11-29 2012-06-28 박이락 The zero-close current transforemer containing case cover
KR20210017333A (en) 2019-08-08 2021-02-17 박이락 The zero-close current transforemer and manufacturing method of it using insert combination between case and case cover

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4154083B2 (en) * 1999-06-25 2008-09-24 富士電機機器制御株式会社 Assembly method of zero-phase current transformer unit for earth leakage breaker mounting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101043173B1 (en) * 2010-11-08 2011-06-20 임장수 Zero phase current transformer and method of manufacturing the same
KR101161019B1 (en) * 2010-11-29 2012-06-28 박이락 The zero-close current transforemer containing case cover
KR20210017333A (en) 2019-08-08 2021-02-17 박이락 The zero-close current transforemer and manufacturing method of it using insert combination between case and case cover

Also Published As

Publication number Publication date
KR19990034860A (en) 1999-05-15

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