KR930007972Y1 - Transformer - Google Patents

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Publication number
KR930007972Y1
KR930007972Y1 KR2019890015888U KR890015888U KR930007972Y1 KR 930007972 Y1 KR930007972 Y1 KR 930007972Y1 KR 2019890015888 U KR2019890015888 U KR 2019890015888U KR 890015888 U KR890015888 U KR 890015888U KR 930007972 Y1 KR930007972 Y1 KR 930007972Y1
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South Korea
Prior art keywords
noise
conductive
secondary winding
primary
shielding
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KR2019890015888U
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Korean (ko)
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KR910007949U (en
Inventor
임석규
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금성기전 주식회사
김희수
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Priority to KR2019890015888U priority Critical patent/KR930007972Y1/en
Publication of KR910007949U publication Critical patent/KR910007949U/en
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Publication of KR930007972Y1 publication Critical patent/KR930007972Y1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38Auxiliary core members; Auxiliary coils or windings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/33Arrangements for noise damping

Abstract

내용 없음.No content.

Description

잡음 흡수용 변압기Noise Absorption Transformer

제 1 도는 종래의 구성도.1 is a conventional configuration diagram.

제 2 도는 종래 U형 도전캡의 사시도.2 is a perspective view of a conventional U-shaped conductive cap.

제 3 도는 종래의 전기 결선도.3 is a conventional electrical diagram.

제 4 도는 본고안의 구성도.4 is a schematic diagram of the present proposal.

제 5 도는 본고안의 결선도.5 is the connection diagram of this paper.

제 6 도는 본고안 도전판의 사시도.6 is a perspective view of the conductive plate of the present invention.

제 7 도는 본고안 환상 철심에서의 절연예시도.7 is an illustration of insulation at the annular iron core of the present invention.

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

1 : 환상철심 2 : 1차권선1: ring core 2: primary winding

2 : 2차권선 4, 7 : 차폐선2: secondary winding 4, 7: shielding wire

5, 6 : 도전판5, 6: conductive plate

본 고안은 전원선의 전도성 고주파 잡음 흡수용 변압기에 관한 것으로 특히 변압기 권선간의 정전용량과 전자계 영향을 극소화시켜서 전도잡음을 흡수, 차폐하여 각종 전원잡음으로부터 전자기기를 보호할 수 있도록 한 것이다.The present invention relates to a transformer for absorbing conductive high frequency noise of a power line, in particular, to minimize the capacitance and electromagnetic field effects between the transformer windings to absorb and shield conduction noise to protect electronic devices from various power noises.

종래에는 제 1 도 내지 제 3 도에 도시된 바와같이 철심(1)에 1차권선(2)을 감은 후 "U"자형의 도전체로된 캡(11)(12)을 절연판(13)을 일측으로 매개하여 상하에서 끼우고 그 위에 2차권선(3)을 감았다.Conventionally, as shown in FIGS. 1 to 3, the primary winding 2 is wound around the iron core 1, and then the cap 11 and 12 made of a “U” -shaped conductor are disposed on one side of the insulating plate 13. It was inserted in the upper and lower sides by mediating and wound the secondary winding (3) on it.

이때, 도전캡(11)(12)은 내측 접속부분에서 쇼트됨과 아울러 외측부분은 절연판(13)으로 서로 절연되어 있었다.At this time, the conductive caps 11 and 12 were shorted at the inner connection portion and the outer portions were insulated from each other by the insulating plate 13.

제 2 도는 이러한 도전캡(11)(12)의 상세도로 내측으로 조립이 용이하게 구성되어 있으며 이들 도전캡(11)(12)은 일정 두께의 도전체로 구성되어 있었다.FIG. 2 is a detailed view of the conductive caps 11 and 12 so as to easily assemble inward, and these conductive caps 11 and 12 were made of a conductor having a predetermined thickness.

이와같이 구성되는 종래의 기술에 있어서는 1, 2차권선(2)(3) 사이에 매개된 도전캡(11)(12)으로 인해서 1, 2차 권선(2)(3)간의 정전용량(C)에 매우 작아지게 되었으며 통상적으로 변압기에서 1차권선(2)을 통하여 입력되는 각종 잡음은 1, 2차권선(2)(3)간 존재하는 스트레이(stray)정전용량이 잡음 즉, 기본 주파수보다 높은 전압, 전류에 대해서는 저인피던스 회로를 형성하므로 1차권선(2)으로 입력되는 각종잡음이 2차권선(3)으로 전도 되었다.In the conventional technique configured as described above, the capacitance C between the primary and secondary windings 2 and 3 is due to the conductive caps 11 and 12 mediated between the primary and secondary windings 2 and 3. In general, the noise inputted through the primary winding (2) from the transformer has a large amount of stray capacitance between the primary and secondary windings (2) and (3). Since a low impedance circuit is formed for voltage and current, various noises inputted to the primary winding 2 are conducted to the secondary winding 3.

따라서, 이와같이 전도되는 각종 잡음을 방지하기 위하여 종래에는 도체로 차폐시켰으나 각 도체간의 이격거리 즉 도체간의 틈이 있으므로 차폐효과가 떨어져 이를 보완하기 위하여 제 2 도와 같은 "U"형 도전캡(11)(12)을 1, 2차권선(2)(3)간에 장치하여 1, 2차권선(2)(3)간의 정전용량(C)을 극소화시켜서 잡음전도를 방지하였다.Therefore, in order to prevent various kinds of noises conducted in this way, the shielding is conducted with conductors, but the separation distance between the conductors, i.e., the gap between the conductors, prevents the shielding effect and thus compensates for the "U" type conductive cap 11 (2). 12) was installed between the primary and secondary windings (2) and (3) to minimize the capacitance (C) between the primary and secondary windings (2) and (3) to prevent noise conduction.

이때, 제 1 도와 같이 도전캡(11)(12)은 절연판(13)으로 절연시키므로 동작시 도전캡(11)(12)은 단락회로를 구성치 아니하며 제 3 도와 같이 도전캡(11)(12)을 접지시키므로 잡음이 대지측으로 바이패스 되었다.At this time, since the conductive caps 11 and 12 are insulated by the insulating plate 13 as in the first diagram, the conductive caps 11 and 12 do not constitute a short circuit during operation, and the conductive caps 11 and 12 are formed as in the third diagram. ), The noise is bypassed to ground.

그러나, 종래에는 전술한 바와같이 도전캡(11)(12)을 내측은 접지시키고 외측은 절연시켜야하므로 이러한 도전캡(11)(12)를 제조하기가 어려웠으며 2차권선(3)이 외측에 위치하여 외부전계 및 자계의 영향을 받기쉬울 뿐만 아니라 1, 2권선(2)(3)간의 정전용량에 의한 잡음 전도에는 매우 효과적이나 전자유도현상을 방지할 수 없는 결점이 있었다.However, in the related art, it is difficult to manufacture the conductive caps 11 and 12 because the conductive caps 11 and 12 must be grounded on the inside and insulated on the outside, as described above. Not only is it easy to be affected by external and magnetic fields, but it is very effective in conducting noise due to capacitance between 1 and 2 windings (2) and (3), but there is a defect that cannot prevent electromagnetic induction.

본 고안은 이와같은 종래의 결점을 감안하여 안출한 것으로 이를 첨부된 도면 제 4 도 내지 제 8 도에 의하여 상세히 설명하면 다음과 같다.The present invention has been devised in view of the above-mentioned drawbacks, and will be described in detail with reference to FIGS. 4 to 8.

본 고안은 환상철심(1)위에 2차권선(3)을 적당한 회수로 감고 이 2차권선(3)위에 같은 권회수로 전체자로장에 걸쳐 차폐선(4)을 감은후 도전체의 박판으로된 도전판(5)(6)을 상기 2차권선(3)과 차폐선(4)의 상하로 끼운다.The present invention winds the secondary winding (3) on the annular iron core (1) with an appropriate number of turns, wound the shielding wire (4) over the whole magnetic field with the same number of turns on the secondary winding (3), and then into the thin plate of the conductor. The conductive plates 5 and 6 are sandwiched above and below the secondary winding 3 and the shielding line 4.

또한, 상기 도전판(5)(6) 주위에 1차권선(2)과 차폐선(7)을 동일한 횟수로 권선한다.Further, the primary winding 2 and the shielding line 7 are wound around the conductive plates 5 and 6 the same number of times.

제 5 도는 본고안의 결선도로 8은 1차권선(2)의 리드, 9는 2차권선(3)의 리드이며 차폐선(4)(7)의 일측은 접지되어 있고 다른일측은 콘덴서(C1)(C2)를 통하여 접지되어 있으며 도전판(5)(6)역시 일측이 접지되어 있다.5 is a connection diagram of the present invention, 8 is a lead of the primary winding 2, 9 is a lead of the secondary winding 3, and one side of the shielding lines 4 and 7 is grounded and the other side is a capacitor C 1. (C 2 ) is grounded, and one side of the conductive plates 5 and 6 is also grounded.

제 6 도는 도전판(5)(6)의 상세도로 밑부분에 위치되는 도전판을 일예로 도시했으며 이들이 외측부분에서 서로 접속이 되게 조립되어 있다.6 shows an example of the conductive plates located at the bottom of the conductive plates 5 and 6 in detail, and they are assembled to be connected to each other at the outer portion.

이와같은 구성을 갖는 본고안은 1차권선 리드(8)는 전원측에 그리고 2차권선리드(9)는 전자기기측에 연결하여 본고안의 구성장치를 이들 전원선측과 부하기기의 중간에 설치한 상태에서 리드(8)의 양측으로 전원잡음이 입력되면 환상철심(1)에 자속을 발생시키게 되고 이 자속이 2차권선(3)가 쇄교하므로 2차측에 잡음전압이 유기된다.In this proposal, the primary winding lead 8 is connected to the power supply side and the secondary winding lead 9 is connected to the electronic equipment side. When power supply noise is input to both sides of the lead 8, magnetic flux is generated in the annular core 1 and the magnetic flux is bridged by the secondary winding 3 so that the noise voltage is induced on the secondary side.

따라서, 기본주파에서는 콘덴서(C1)(C2)가 높은 임피던스이므로 차폐선(4)(7)에 순환전류가 흐르지 않지만 만일 높은 주파수의 잡음이 입력되면 콘덴서(C1)(C2)가 저임피던스를 구성하여 차폐선(4)(7)에 순환전류가 흐르게 되고, 이러한 순환전류는 1차권선(2)측으로 입력되는 잡음과는 반대의 기전력을 구성하여 잡음자속의 발생을 억제시키게 된다.Therefore, at the fundamental frequency, since the capacitor C 1 (C 2 ) is a high impedance, no circulating current flows through the shield lines 4, 7, but if a high frequency noise is input, the capacitor C 1 (C 2 ) By constructing low impedance, a circulating current flows through the shielding lines 4 and 7, and the circulating current forms an electromotive force opposite to the noise input to the primary winding 2 side, thereby suppressing the generation of the noise magnetic flux.

또한, 환상철심(1)을 기본주파수에서 사용하는 저주파용을 사용하므로 고주파성 잡음에 대해서는 투자율이 급속히 저하되어 높은 자기저항으로 잡음자속의 발생을 억제하게 되고, 전원선의 양라인으로 유입하는 잡음을 환상철심(1)의 손실분으로 소모시켜 잡음을 흡수, 차폐할 수 있게 된다.In addition, since the low frequency uses the annular core (1) at the fundamental frequency, the permeability of the high frequency noise is rapidly decreased, and the high magnetic resistance suppresses the generation of the magnetic flux. It is possible to absorb and shield the noise by consuming the loss of the annular core 1.

그리고, 차폐선(4)(7)의 권회수를 1, 2차 권선(2)(3)과 동일하게 하므로 극히 적은 순환전류로도 큰 암페어를 얻을 수 있어 잡음에 의한 자속을 억제할 수 있다.Since the number of turns of the shielding wires 4 and 7 is the same as those of the primary and secondary windings 2 and 3, a large amperage can be obtained even with a very small circulating current, and the magnetic flux due to noise can be suppressed. .

또한, 도전판(5)(6)이 1, 2차권선(2)(3) 사이에 설치되어 1, 2차권선(2)(3)간의 정전용량 결합에 의한 잡음전도를 방지할 수 있으며 여기서, 권선간의 정전용량은 권선간의 대전면적과 권선간의 절연에 사용하는 절연재료의 유전율과의 곱에 비례하고 권선간의 거리에 반비례하므로 도전판(5)(6)은 권선의 외측과 상하에만 설치한다.In addition, conductive plates (5) and (6) are installed between the primary and secondary windings (2) and (3) to prevent noise conduction due to capacitive coupling between the primary and secondary windings (2) and (3). Here, the capacitance between the windings is proportional to the product of the charge area between the windings and the dielectric constant of the insulating material used to insulate the windings, and is inversely proportional to the distance between the windings, so that the conductive plates 5 and 6 are installed only on the outside and the top and bottom of the windings. do.

제 8 도는 환상철심(1)에 절연테이프(10)를 사용하여 절연하는 상태에 대한 것으로 환상철심(1)의 내측은 절연테이프(10)가 외측에 비해서 여러번 겹치므로 1, 2차권선(2)(3)간의 절연거리가 외측에 비해서 매우 증가하여 권선 외측부분에 의한 권선간 정전용량보다 극히 적어진다.FIG. 8 is a view illustrating a state in which the annular iron core 1 is insulated by using the insulating tape 10. The inner side of the annular iron core 1 overlaps the insulation tape 10 several times as compared with the outer side. The insulation distance between (3) is greatly increased compared to the outside, which is extremely smaller than the inter-winding capacitance by the outer part of the winding.

따라서, 도전판(5)(6)은 내측을 크게 이격시켜서 제조하기가 용이하다.Therefore, the conductive plates 5 and 6 are easy to manufacture with a large spaced inner side.

또, 본 고안은 다중으로 차폐시킨 구조이므로 1차권선(2)으로 입력되는 잡음에 의한 전계 및 자계의 영향이 2차권선(3)에 미치는 것을 극소화시키고 1, 2차 권선(2)(3)간의 정전결합에 의한 잡음 전도를 방지하며 차폐선(4)(7)으로 잡음 유효가속을 억제하므로 전원선으로 입력되는 펄스성 잡음 및 고주파 잡음을 흡수, 차폐하는 효과가 있다.In addition, the present invention is a structure shielded in multiple, so that the effect of the electric and magnetic field due to noise input to the primary winding (2) to minimize the secondary winding (3), and the primary and secondary windings (2) (3 It prevents noise conduction due to electrostatic coupling between) and suppresses effective acceleration of the noise by shielding lines (4) and (7), thereby absorbing and shielding pulsed noise and high frequency noise input to the power line.

Claims (2)

환상철심(1)위에 2차권선(3)을 적당한 회수로 감고 이 2차권선(3)위에 같은 권회수로 차폐선(4)을 감은 후 도전판(5)(6)을 상기 2차권선(3)과 차폐선(4)의 상하로 끼우며, 이 도전판(5)(6) 주위에 1차권선(2)과 차폐선(7)을 2차권선과 동일회수로 권선함을 특징으로 하는 잡음 흡수용 변압기.Wind the secondary winding (3) on the annular core (1) with an appropriate number of times, wind the shielding wire (4) on the secondary winding (3) with the same number of turns, and then roll the conductive plates (5) and (6) on the secondary winding. (3) and the shielding wire (4) is inserted up and down, and the primary winding (2) and the shielding wire (7) is wound around the conductive plate (5) (6) in the same number of times as the secondary winding Noise absorption transformer. 제 1 항에 있어서, 차폐선(4)(7)의 일측은 접지함과 아울러 다른 일측은 콘덴서(C1)(C2)를 통하여 접지하고 도전판(5)(6)의 일측을 접지하여서 구성됨을 특징으로 하는 잡음 흡수용 변압기.The method of claim 1, wherein one side of the shielding wires (4) and (7) is grounded, while the other side is grounded through the capacitor (C 1 ) (C 2 ), and one side of the conductive plates (5) (6) is grounded. Noise absorption transformer, characterized in that configured.
KR2019890015888U 1989-10-31 1989-10-31 Transformer KR930007972Y1 (en)

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KR930007972Y1 true KR930007972Y1 (en) 1993-11-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020067403A (en) * 2001-02-16 2002-08-22 조승상 Lighting-equipment for cigarette

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020067403A (en) * 2001-02-16 2002-08-22 조승상 Lighting-equipment for cigarette

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