KR20010098130A - Line filter coil - Google Patents

Line filter coil Download PDF

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Publication number
KR20010098130A
KR20010098130A KR1020000022826A KR20000022826A KR20010098130A KR 20010098130 A KR20010098130 A KR 20010098130A KR 1020000022826 A KR1020000022826 A KR 1020000022826A KR 20000022826 A KR20000022826 A KR 20000022826A KR 20010098130 A KR20010098130 A KR 20010098130A
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South Korea
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coil
winding
line filter
windings
wires
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KR1020000022826A
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Korean (ko)
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KR100382139B1 (en
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이시야마고키
우에무라히로유키
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사토 히로시
티디케이가부시기가이샤
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Publication of KR20010098130A publication Critical patent/KR20010098130A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/0006Printed inductances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/0006Printed inductances
    • H01F17/0013Printed inductances with stacked layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2804Printed windings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F2017/0093Common mode choke coil
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2804Printed windings
    • H01F2027/2809Printed windings on stacked layers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

(과제) 직류중첩에 의한 인덕턴스치의 안정화를 도모하고, 전선간의 불요한 공간을 없이 하여 전선의 점유율을 향상시켜, 둥근전선 사용시와 비교하여 소형의 고주파특성의 양호한 라인필터코일을 제공한다.(Problem) It aims at stabilizing inductance value by DC overlap, improves the wire occupancy without unnecessary space between wires, and provides a good line filter coil with small high frequency characteristics compared to when using round wires.

(해결수단) 복수의 절연피복된 평각전선(2, 3)을 두께방향으로 적층하고 동시에 폭방향으로 만곡상으로 구부려서 통상으로 권회한 동일한 권회방향의 2개의 통형분활권선부(4, 5)를 연결부를 통하여 연속형성하여 각 평각전선마다 코일권선(1A, 1B)을 각각 구성하고 있다. 상기 코일권선(1A, 1B)의 인출리드부(2a, 3a)는 각 통형분할권선부(4, 5)의 축방향의 같은측에 있다. 또, 각 평각전선(2, 3)에 의한 코일권선(1A, 1B)은 통전시에 각각 서로 상쇄하는 방향으로 주자속을 발생한다.(Measures) Two cylindrical split windings 4 and 5 in the same winding direction normally wound by stacking a plurality of insulated coated flat wires 2 and 3 in the thickness direction and simultaneously bending them in the width direction. The coil windings 1A and 1B are formed for each flat wire through continuous connection. The lead leads 2a, 3a of the coil windings 1A, 1B are on the same side in the axial direction of the cylindrical split windings 4, 5, respectively. In addition, the coil windings 1A and 1B of each of the flat wires 2 and 3 generate main magnetic flux in directions canceling each other at the time of energization.

Description

라인필터코일{LINE FILTER COIL}Line Filter Coils {LINE FILTER COIL}

본 발명은 각종 전자기기에 삽입되는 노이즈방지용의 필터에 사용되는 라인필터코일에 관한 것이다.The present invention relates to a line filter coil used in a noise preventing filter inserted in various electronic devices.

종래, 각종 전자기기에 삽입되는 노이즈방지용의 필터는 공통 모드 노이즈를 제거하는 것으로 저주파로부터 고주파까지의 노이즈를 제거하는 것이 요구되고 있다. 제한된 크기의 코어에 권선하여야 하지만, 굵은 전선으로는 다층권으로 되고 분포용량이 증대해 버리고, 가는 전선으로는 층수를 적게 할 수는 있지만, 직류저항이 크게 되는 결점을 갖는다.Background Art Conventionally, noise prevention filters inserted into various electronic devices have been required to remove noise from low to high frequencies by removing common mode noise. Although it is necessary to wind the core in a limited size, it has the drawback that the coarse wire becomes a multilayer winding and the distribution capacity increases, and the thin wire can reduce the number of layers, but the DC resistance becomes large.

한편, 공통모드 노이즈제거용의 공통모드 초크코일에 있어서는, 2개의 코일권선 상호의 결합이 조밀함이 바람직하고, 이 때문에, 2개의 전선을 포개어 권선하는 것이 고려된다. 그러나, 2개의 둥근전선을 포개어 권선한 경우, 도 6의 권선구조로 되고, 동도의 확대한 원내에 도시하는 바와 같이 공간(S)이 생기고, 권선점유율이 나쁘고, 같은 단면적으로 같은 권수의 평각전선을 사용한 도 3의 권선구조(본 발명의 실시형태에서 후술하는)와 비교하여 라인필터코일이 대형화한다라는 결점을 갖고 있다.On the other hand, in the common mode choke coil for common mode noise removal, it is preferable that the coupling of two coil windings is dense, and for this reason, it is considered that two electric wires are piled up. However, when two round wires are stacked and wound, the winding structure shown in Fig. 6 results in a space S, as shown in the enlarged circle of the same degree, and the winding share is poor, and a flat wire of the same number of turns is used. Compared with the winding structure of FIG. 3 used (described later in the embodiment of the present invention), the line filter coil has a drawback in size.

또, 2개의 전선을 포개지 않고 따로따로 감아 2개의 코일권선을 제작하여, 분할형 폐자로코어(페라이트)를 삽입한 경우는, 각 코일권선에 의하여 발생하는 자속의 결합이 나쁘고 통전전류를 높게 하였을 경우, 도 7(a)에 도시한 바와 같이 인덕턴스는 저하해 버려 직류중첩특성으로 균일한 인덕턴스값을 유지할 수 없다라는 결점을 갖고 있다.In addition, when two coil windings are manufactured by separately winding two wires without overlapping, and a core (ferrite) is inserted into the split-type closed coils, the magnetic flux generated by each coil winding is bad and the conduction current is high. In this case, as shown in Fig. 7 (a), the inductance is lowered, so that the inductance value cannot be maintained due to the DC overlapping characteristic.

본 발명은 상기한 점에 비추어 평각전선을 두께방향으로 적층하여 권회한 권선구조를 갖는 것으로, 직류중첩에 의한 인덕턴스값의 안정화를 도모함과 동시에, 전선간의 불필요한 공간(도 6의 공간(S) 등)을 없게 하여 전선의 점유율을 향상시켜, 둥근전선 사용시와 비교하여 소형으로 고주파특성의 양호한 라인필터코일을 제공하는 것을 목적으로 한다.The present invention has a winding structure in which a flat wire is laminated in the thickness direction in the light of the above point, and the inductance value is stabilized by DC overlapping, and an unnecessary space between wires is used (space S in FIG. 6, etc.). The purpose of the present invention is to provide a good line filter coil having a high frequency characteristic and a small size as compared with the case of using a round wire by eliminating the size of the wire.

본 발명의 기타의 목적이나 신규의 특징은 후술의 실시형태에 있어서 명백하게 된다.Other objects and novel features of the present invention will become apparent in the following embodiments.

도 1은 본 발명에 관한 라인필터코일의 제1의 실시형태를 도시하는 사시도,1 is a perspective view showing a first embodiment of a line filter coil according to the present invention;

도 2는 동 정면도,2 is a front view of the same,

도 3은 동 정단면도,3 is a front cross-sectional view of the same,

도 4는 동 저면도,4 is a copper bottom view,

도 5는 본 발명의 제 2 실시형태를 도시하는 평면도,5 is a plan view showing a second embodiment of the present invention;

도 6은 종래의 라인필터코일의 단면도,6 is a cross-sectional view of a conventional line filter coil,

도 7은 제2의 실시형태의 경우의 인덕턴스의 직류중첩특성을 종래의 경우와 대비하여 도시하는 특성도.Fig. 7 is a characteristic diagram showing a direct current overlapping characteristic of inductance in the case of the second embodiment as compared with the conventional case;

(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

1: 라인필터코일 1A, 1B: 코일권선1: Line filter coil 1A, 1B: coil winding

2, 3: 평각전선 4, 5: 통형분할권선부2, 3: Flat wire 4, 5: Circular split winding

6: 연락부 10: 분할형 폐자로코어6: liaison 10: split end core

10a, 10b: 각부10a, 10b: parts

(과제를 해결하기 위한 수단)(Means to solve the task)

상기 목적을 달성하기 위하여, 본 발명의 라인필터코일은 복수의 절연피복된 평각전선을 두께방향으로 적층하고 동시에 폭방향으로 만곡상으로 구부려 통상(筒狀)으로 권회한 동일한 권회방향의 2개의 권선부를 연락부를 통하여 연속형성하여 각 평각전선마다 코일권선을 각각 구성한 것을 특징으로 하고 있다.In order to achieve the above object, the line filter coil of the present invention has two windings in the same winding direction in which a plurality of insulated coated flat wires are laminated in the thickness direction and simultaneously bent in a width direction and wound in a normal manner. The coil is continuously formed through the contact portion to form coil windings for each flat wire.

상기 라인필터코일에 있어서, 각 평각전선에 의한 코일권선은 통전시에 각각 서로 상쇄하는 방향으로 주자속을 발생하도록 구성하면 좋다.In the above line filter coil, the coil windings by the flat wires may be configured to generate main magnetic flux in directions canceling each other at the time of energization.

상기 코일권선의 인출리드부는, 각 권선부의 축방향의 같은 측에 있도록 하면 좋다.The lead lead portion of the coil winding may be on the same side in the axial direction of each winding portion.

상기 2개의 권선부의 내주(內周)측에 자기코어의 각부(脚部)가 공통으로 삽입되는 구성으로 하면 좋다.What is necessary is just to set it as the structure in which each part of a magnetic core is inserted in common in the inner peripheral side of the said two winding parts.

(발명의 실시형태)Embodiment of the Invention

이하, 본 발명에 관한 라인필터코일의 실시형태를 도면에 따라 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the line filter coil which concerns on this invention is described according to drawing.

도 1은 본 발명의 제 1 실시형태를 도시하는 사시도, 도 2는 동 정면도, 도 3은 동 정단면도, 도 4는 동 저면도이다. 이들의 도면에 있어서, 라인필터코일(1)은 절연피복을 실시한 2개의 4각형 단면평각전선(2, 3)을 두께방향으로 포개어 폭방향을 만곡상으로 구부려, 통형으로 적층 권회한 동일한 권회방향의 2개의 통형분할권선부(4, 5)를 연락부(6)를 통하여 연속형성하고, 서로 조밀하게 결합한 2개의 코일권선(1A, 1B)(평각전선(2)에 의한 것과 평각전선(3)에 의한 것)을 동시에 제작한 것이다. 상기 연락부(6)는 예를 들면 2개의 통형분할권선부(4, 5)를 S자상으로 접속하는 것이면 된다. 또, 2개의 코일권선(1A, 1B)의 권선단말, 즉 권회된 평각전선(2, 3)의 단부인 인출리드부(2a, 3a)는 각통형 분할권선부(4, 5)의 축방향의 같은 측으로서, 각통형 분할권선부(4, 5)의 접선방향으로 도출되어 있다.1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a front elevation view, FIG. 3 is a sectional front view, and FIG. 4 is a bottom view thereof. In these drawings, the line filter coil 1 overlaps two quadrangular cross-section wires 2 and 3 subjected to insulation coating in the thickness direction, bends the width direction in a curved shape, and is wound in the same shape as the winding direction. Two coil windings 1A and 1B which are continuously formed through the contact section 6, and are formed by two coil windings 1A and 1B, which are tightly coupled to each other (by the flat wire 2 and the flat wire 3). ) Is produced at the same time. The said communication part 6 should just connect two cylindrical split winding parts 4 and 5 in S shape, for example. Further, the winding terminals of the two coil windings 1A and 1B, that is, the lead-out portions 2a and 3a which are the ends of the wound flat wires 2 and 3, have an axial direction of the rectangular cylindrical windings 4 and 5. On the same side of, the tangential dividing windings 4 and 5 are drawn in the tangential direction.

2개의 통형분할권선부(4, 5)를 갖도록 포개어 감겨진 2개의 코일권선(1A, 1B)은 도 3 확대단면의 화살표로 도시하는 바와 같이, 포개어 권회한 평각전선(2, 3)으로부터 통전시에 서로 상쇄하는 방향의 주자속을 발생한다. 즉, 2개의 통형분할권선부(4, 5)의 내주측에 U-I형, U-U형 코어 등의 분할형 폐자로코어의 각부를 공통으로 삽입한 경우, 전류통전시에 평간전선(2, 3)을 포개어 권회한 2개의 코일권선(1A, 1B)이 만드는 자속이 서로 상쇄하고, 누설자속이 극히 적은 통형분할권선부(4, 5)를 동일면에 배열하여 안경형 권선구조로 하고 있다.The two coil windings 1A and 1B stacked to have two cylindrical dividing winding portions 4 and 5 pass through the flat wires 2 and 3 that are wrapped and wound as shown by the arrows in the enlarged cross section of FIG. 3. Generates magnetic flux in the direction of offsetting each other in the exhibition. That is, when the respective parts of the cores are divided into two types of divided split windings 4 and 5 on the inner circumferential side of the UI type and UU cores, the flat wires 2 and 3 at the time of current supply. The windings of the two coil windings 1A and 1B which are wound around each other and the magnetic fluxes generated by each other cancel each other out, and the cylindrical split winding portions 4 and 5 having extremely small leakage magnetic fluxes are arranged on the same surface.

구체적으로는, 2개의 코일권선(1A, 1B)을 갖는 라인필터코일(1)의 각 통형분할권선(4, 5)은 도 1에 도시하는 바와 같이, 예를 들면 폭(a)이 4mm, 두께가 1mm의평각전선의 내주경(b)을 14mm로 하고, 동일원주상에 축방향으로 적층하고, 그 권선단말인 인출리드부(2a, 3a) 선단부를 단자(8)로서 각각 도출하고, 다른 단부는 상기 연락부(6)로서 구성되어 있다.Specifically, the cylindrical split windings 4 and 5 of the line filter coil 1 having two coil windings 1A and 1B have a width a of 4 mm, for example, as shown in FIG. An inner circumferential diameter b of a 1 mm thick wire is 14 mm, and is laminated in the circumferential direction on the same circumference, and the leading ends of the lead ends 2a and 3a, which are the winding terminals thereof, are respectively drawn out as the terminals 8, The other end is comprised as the said contact part 6.

이 제 1 실시형태에 의하면 다음과 같은 효과를 얻을 수가 있다.According to this first embodiment, the following effects can be obtained.

(1) 2개의 평각전선(2, 3)을 포개어 통형으로 권선하여 평각전선(2)으로 코일권선(1A)을 평각전선(3)으로 코일권선(1B)을 구성하여 있고, 동일평각전선을 권회한 코일권선에 대하여 보면 권선간격이 넓어졌고, 더욱더 평각전선(2, 3)으로 권회형성된 안경형 코일권선(1A, 1B)은 코어의 양발로 분할되어 권선되어 있으므로, 분포용량이 작아지고, 고주파특성의 개선이 가능하다.(1) Two flat wires (2, 3) are stacked and wound in a cylindrical shape to form a coil wire (1B) with a flat wire (2) and a coil winding (1B) with a flat wire (2). With regard to the wound coil winding, the winding interval was widened, and the spectacle coil windings 1A and 1B wound and formed by the flat wires 2 and 3 are divided and wound around the core so that the distribution capacity becomes small and high frequency. It is possible to improve the characteristics.

(2) 2개의 평각전선(2, 3)을 포개어 통형으로 권선하고 있기 때문에, 평각전선(2)으로 권회형성된 안경형 코일권선(1A)과 평각전선(3)으로 권회형성된 안경형 코일권선(1B) 사이의 결합이 조밀하게 되고, 직류중첩특성의 개선이 가능하다.(2) Since two flat wires (2, 3) are stacked and wound in a tubular shape, the spectacle coil winding (1A) wound around the flat wire (2) and the spectacle coil winding (1B) wound around the flat wire (3) The coupling between the two becomes dense, and the DC overlapping characteristic can be improved.

(3) 2개의 통형분할권선부(4, 5)의 인출리드부(2a, 3a)는 각 권선부의 축방향과 같은 측에 있으므로, 인출리드부(2a, 3a)의 선단부의 단자(8)의 위치를 가지런히 할 수 있다.(3) Since the lead lead portions 2a and 3a of the two cylindrical split winding portions 4 and 5 are on the same side as the axial direction of each winding portion, the terminal 8 of the distal end portion of the lead lead portions 2a and 3a. You can arrange the position of.

도 5는 본 발명의 제2의 실시형태로서, 제1의 실시형태에 도시한 라인필터코일(1)에 분할형 폐자로코어(10)를 편성하여 공통모드 초크코일을 구성한 것이다. 본 실시의 형태에서는, 분할형 폐자로코어(10)로서 U형 코어를 2개 맞댄 구조를 예시하여 있고, 분할형 폐자로코어(10)의 양 각부(10a, 10b)를 라인필터코일(1)의 통형분할권선부(4, 5)의 내주측에 삽입하여 있다. 더욱이, 기타의 구성은 상술의 제1 실시형태와 동일하고, 동일 또는 상당부분에 동일부호를 붙여 설명을 생략한다.Fig. 5 shows a second embodiment of the present invention, in which a split-type closed furnace core 10 is knitted on the line filter coil 1 shown in the first embodiment to form a common mode choke coil. In this embodiment, a structure in which two U-shaped cores are opposed to each other as the split-type closed furnace core 10 is illustrated, and both of the portions 10a and 10b of the split-type closed furnace core 10 are line filter coils 1. ) Is inserted into the inner circumferential side of the cylindrical split winding portion (4, 5). In addition, the other structure is the same as that of 1st Embodiment mentioned above, the same code | symbol is attached | subjected to the same or an equivalent part, and description is abbreviate | omitted.

이와 같이, 라인필터코일(1)에 분할형 폐자로코어(10)를 편성하여 공통모드 쵸크코일을 구성한 경우, 라인필터코일(1)이 2개의 평각전선(2, 3)을 포개어 폭방향을 만곡상으로 구부러 통형으로 적층 권회한 동일한 권회방향의 2개의 통형분할권선부(4, 5)를 연락부(6)에서 연속하여 접속한 구성이고, 분포용량이 작게 되고, 고주파특성이 좋은 라인필터를 실현하는 것이 가능하게 된다. 또, 2개의 평각전선(2, 3)을 포개어 통형으로 권선하여 상호 조밀하게 결합한 2개의 안경형 코일권선(1A, 1B)을 제작하고 있기 때문에, 자속의 결합이 좋게 되고, 도 7(b)에 도시하는 바와 같이 직류중첩특성도 좋고, 효율이 좋은 라인필터를 구성할 수 있다. 더욱이, 도 6의 둥근전선과 비교하여 권선점유율이 향상된 라인필터코일을 소형화할 수 있다.Thus, when the common mode choke coil is formed by combining the core 10 with the split-type closed coil in the line filter coil 1, the line filter coil 1 overlaps the two flat wires 2 and 3 so that the width direction thereof is changed. Two cylindrical split windings 4 and 5 in the same winding direction, which are bent in a curved shape and stacked in a tubular shape, are connected in series with the contact section 6, and have a small distribution capacity and a high frequency characteristic line filter. It becomes possible to realize. In addition, since two spectacle coil windings 1A and 1B are fabricated by stacking two flat wires 2 and 3 and winding them in a tubular shape, the magnetic flux is better coupled to FIG. 7 (b). As shown in the drawing, a DC filter having good DC overlapping characteristics and high efficiency can be formed. In addition, the line filter coil having improved winding occupancy compared to the round wire of FIG. 6 can be miniaturized.

더욱이, 라인필터코일(1)과 폐자로코어의 접촉부분과의 사이 및 평각전선(2, 3) 사이에 절연재를 설치하여도 좋다.Furthermore, an insulating material may be provided between the line filter coil 1 and the contact portion of the closed furnace core and between the flat wires 2 and 3.

또, 제2의 실시형태에 있어서, 분할형 폐자로코어로서 U형 코어를 2개 맞댄 예를 도시하였지만, U-I형, E-I형 및 E-E형 코어의 어느 것으로 구성하여도 좋다.In addition, in the second embodiment, an example in which two U-shaped cores are opposed to each other as the split-type closed furnace core is illustrated, but may be composed of any of the U-I type, the E-I type, and the E-E type core.

더욱더, 각 실시형태에 있어서, 라인필터코일(1)은 2개의 평각전선(2, 3)을 포개어 통형으로 권선한 예를 도시하였지만, 3상 내지 다상라인에 삽입할 목적으로 3개 이상의 평각전선을 포개어 통형으로 권선하는 구조로 하여도 좋다.Further, in each embodiment, although the line filter coil 1 has shown an example in which two flat wires 2 and 3 are wound in a tubular shape, three or more flat wires are inserted for the purpose of inserting them into three-phase or multi-phase lines. May be structured to be wound in a tubular shape.

이상 본 발명의 실시형태에 대하여 설명하여 왔지만, 본 발명은 이에 한정되는 일없이 청구항 기재의 범위내에 있어서 각종의 변형, 변경이 가능한 것은 당업자에는 자명할 것이다.Although the embodiments of the present invention have been described above, it will be apparent to those skilled in the art that the present invention can be variously modified and changed without departing from the scope of the claims.

이상 설명한 바와 같이, 본 발명에 관한 라인필터코일에 의하면, 복수의 절연피복된 평각전선을 두께방향으로 적층하고 동시에 폭방향으로 만곡상으로 구부려 통상으로 권회한 동일한 권회방향의 2개의 권선부를 연락부를 통하여 연속형성하여 각 평각전선마다 코일권선을 각각 구성하였으므로, 동일평각전선을 권회한 코일권선에 대하여 보면 권선간격이 넓어진 것으로 되고, 더욱더 코일권선은 2개의 권선부를 갖는 안경형으로 코어의 양발로 분할되어 권선되므로 분포용량이 작아지고, 고주파특성의 개선이 가능하다. 또, 각 평각전선으로 각각 권회형성된 코일권선 상호의 결합이 조밀하기 때문에 자속의 결합이 좋게 되고 라인필터에 사용하였을 때의 직류중첩특성을 개선하고, 효율의 향상을 도모할 수가 있다.As described above, according to the line filter coil according to the present invention, a plurality of insulated coated flat wires are laminated in the thickness direction, and at the same time, two winding portions in the same winding direction wound in a curved direction in the width direction and wound in a normal manner are connected to the contact portion. Since coil windings were formed for each of the flat wires by successive formation, the coil windings wound around the same flat wires had a wider winding distance. Furthermore, the coil windings were divided into the two feet of the core with an eyeglass type having two windings. Because of the winding, the distribution capacity is small and the high frequency characteristic can be improved. In addition, since the coupling between the coil windings wound around each of the flat wires is tight, the coupling of the magnetic fluxes is improved, and the DC overlapping characteristic when used in the line filter can be improved, and the efficiency can be improved.

Claims (4)

복수의 절연피복된 평각전선을 두께방향으로 적층하고 또한 폭방향으로 만곡상으로 구부려서 통상으로 권회한 동일한 권회방향의 2개의 권선부를 연락부를 통하여 연속형성하여 각 평각전선마다 코일권선을 각각 구성한 것을 특징으로 하는 라인필터코일.A plurality of insulated coated flat wires are laminated in the thickness direction and bent in a curved direction in the width direction to form two winding parts in the same winding direction normally wound through the contact portion to form coil windings for each flat wire. Line filter coil. 제 1 항에 있어서, 각 평각전선에 의한 코일권선은 통전시에 각각 서로 상쇄하는 방향으로 주자속을 발생하는 것을 특징으로 하는 라인필터코일.The line filter coil according to claim 1, wherein the coil windings of the flat wires generate main magnetic fluxes in a direction canceling each other when energized. 제 1 항 또는 제 2 항에 있어서, 상기 코일권선의 인출리드부는 각 권선부의 축방향의 같은 측에 있는 것을 특징으로 하는 라인필터코일.The line filter coil according to claim 1 or 2, wherein the lead lead portion of the coil winding is on the same side in the axial direction of each winding portion. 제 1 항, 제 2 항 또는 제 3 항에 있어서, 상기 2개의 권선부의 내주측에 자기코어의 각부가 공통으로 삽입되어 이루는 것을 특징으로 하는 라인필터코일.The line filter coil according to claim 1, 2 or 3, wherein the respective parts of the magnetic core are inserted in common on the inner circumferential sides of the two winding parts.
KR10-2000-0022826A 2000-04-28 2000-04-28 Line filter coil KR100382139B1 (en)

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