KR20000061115A - Slot bobbin - Google Patents

Slot bobbin Download PDF

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Publication number
KR20000061115A
KR20000061115A KR1019990009931A KR19990009931A KR20000061115A KR 20000061115 A KR20000061115 A KR 20000061115A KR 1019990009931 A KR1019990009931 A KR 1019990009931A KR 19990009931 A KR19990009931 A KR 19990009931A KR 20000061115 A KR20000061115 A KR 20000061115A
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KR
South Korea
Prior art keywords
slot
coil
bobbin
width
feedback coil
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KR1019990009931A
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Korean (ko)
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KR100318416B1 (en
Inventor
구진욱
양진호
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이근범
삼화텍콤 주식회사
이미호
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Priority to KR1019990009931A priority Critical patent/KR100318416B1/en
Publication of KR20000061115A publication Critical patent/KR20000061115A/en
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Publication of KR100318416B1 publication Critical patent/KR100318416B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

PURPOSE: A slot bobbin is provided to reinforce insulation of a feedback coil with a first coil and a second coil, and to improve output regulation in case that a trans is constituted by means of the slot bobbin. CONSTITUTION: A slot bobbin comprises a first and a second slots in a central axis direction and in an orthogonal direction of a wiring section, respectively. The first slot (250) is comprised in plural to have a regular width. The second slot (251) is formed to have a narrower width than the first slot's on an outside of the first slot. The first and second slots are divided by a partition (160) to be insulatedly separated from each other. The slot bobbin has an advantage of improving a regulation of outputs and securing a positive insulation with first and second coils (10, 20), since the first slot capable of wiring a feedback coil (30) on the bobbin of the slot shape is formed on the outside of the first slot and has a narrower width than the width of the first slot capable of wiring the first and second coils. Further, the slot bobbin has another advantage of reducing production cost and improving work achievement, since the feedback coil is completely separated from the second coil and is wired on other slot without an additional insulation screen for insulating the feedback coil.

Description

슬롯보빈{Slot bobbin}Slot bobbin

본 발명은 각종 전기,전자회로에 사용되는 트랜스의 보빈 구조에 관련된 것이다.The present invention relates to a bobbin structure of a transformer used in various electrical and electronic circuits.

일반적으로 트랜스의 보빈은 도 1,도 2, 도 3에서와 같이 원통형의 권선부 중심부(104)와 직각으로 복수개의 슬롯(150)이 형성되고, 그 슬롯에 1차코일(10)과 2차코일(20)이 선택적으로 권선되도록 구성되어 있다.In general, as shown in Figs. 1, 2, and 3, the bobbin of the transformer has a plurality of slots 150 formed at right angles to the central portion 104 of the cylindrical winding part, and the primary coil 10 and the secondary coil are formed in the slots. The coil 20 is configured to be selectively wound.

상기 슬롯(150)에 각각 교대로 권선된 1차코일(10)과 2차코일(20)은 슬롯(150) 사이에 형성되는 격벽(60)에 의하여 서로 강화된 절연 상태를 유지한다.The primary coils 10 and the secondary coils 20 alternately wound in the slots 150 maintain the insulated state reinforced by the partition walls 60 formed between the slots 150.

피드백코일(30)은 가장 외측의 슬롯에 권선되어 있는 2차코일(20)의 위에 3중 절연되어 권선된다.The feedback coil 30 is triple insulated and wound on the secondary coil 20 wound in the outermost slot.

상기 슬롯보빈의 하부에는 슬롯에 권선된 코일의 단부를 결선하는 단자핀(8)이 구비된다.The lower portion of the slot bobbin is provided with a terminal pin (8) for connecting the end of the coil wound in the slot.

상기 종래의 슬롯보빈은 간격이 균일하게 구성되는 슬롯(150)에 1차코일 및 2차코일이 교대로 권선되고, 2차코일 위에 피드백코일(30)이 권선되기 때문에, 2차코일(20)과 피드백코일(30)의 절연성 확보가 어려워지므로 트랜스를 구성하였을 때 출력의 레귤레이션(REGULATION)특성이 나빠지는 문제점이 있다.In the conventional slot bobbin, since the primary coil and the secondary coil are alternately wound in the slot 150 having a uniform spacing, and the feedback coil 30 is wound on the secondary coil, the secondary coil 20 Since it is difficult to secure the insulation of the feedback coil 30 and there is a problem that the regulation characteristics of the output becomes bad when the transformer is configured.

물론, 2차코일과 피드백코일의 절연성확보를 위하여 종래 슬롯의 간격이 일정한 보빈의 구조를 그대로 이용하여 2차코일(20)이 권선된 슬롯에 이웃하는 슬롯을 피드백코일(30)을 권선할 수 있도록 배당할 수 있는 방법을 생각할 수 있지만 이 방법은 피드백코일의 권선수가 2차코일의 권선수에 비하여 현저히 적은 턴수로 감기기 때문에 2차코일과 피드백코일의 결합도 즉, 2차코일의 권선 높이와 피드백코일의 권선 높이 차이가 커지므로 피드백코일의 누설인덕턴스가 크고, 이로 인하여 출력의 레귤레이션의 특성을 근본적으로 개선할 수 없다.Of course, in order to secure insulation between the secondary coil and the feedback coil, the feedback coil 30 may be wound around the slot adjacent to the slot to which the secondary coil 20 is wound, using a structure of a bobbin having a constant interval between conventional slots. It can be thought of as a method of allocating so that the number of turns of the feedback coil is significantly smaller than the number of turns of the secondary coil, so the coupling between the secondary coil and the feedback coil, that is, Since the coil height difference of the feedback coil is large, the leakage inductance of the feedback coil is large, and thus the characteristics of the regulation of the output cannot be fundamentally improved.

본 발명은 종래의 슬롯보빈에 1차코일, 2차코일 및 피드백코일이 권선되었을 때의 문제점을 개선하기 위하여 슬롯보빈의 구조를 변경하여 구성한다.The present invention is configured by changing the structure of the slot bobbin to improve the problems when the primary coil, the secondary coil and the feedback coil is wound in the conventional slot bobbin.

본 발명은 슬롯보빈의 슬롯 폭을 균일하게 형성하되, 가장 외측의 2개의 슬롯 또는 가장 외측의 2개의 슬롯 중 하나의 슬롯의 폭만을 다른 슬롯의 폭보다 좁게 형성한다.According to the present invention, the slot bobbin of the slot bobbin is uniformly formed, and only the width of one of the two outermost slots or the two outermost slots is smaller than the width of the other slots.

또, 슬롯과 슬롯 사이의 격벽 두께는 균일하게 형성되도록 한다.In addition, the thickness of the partition wall between the slots is to be formed uniformly.

상기 폭이 좁게 형성되는 슬롯은 다른 슬롯 폭의 2/3이하가 되도록 형성하고, 상기 폭이 좁게 형성된 슬롯 폭에 피드백코일을 권선하므로써, 턴 수가 적은 피드백코일을 권선하더라도 코일의 적층 높이가 2차코일의 권선높이와 대략 같은 높이가 되도록 할 수 있다.The slot having a narrow width is formed to be 2/3 or less of the width of the other slot, and the winding height of the feedback coil is wound around the narrow width of the slot, so that the winding height of the coil is reduced even if the number of turns is reduced. The height can be approximately equal to the winding height of the coil.

따라서, 본 발명의 목적은 1차코일 및 2차코일과 피드백코일의 절연성을 강화함과함께, 본 발명의 슬롯보빈을 이용하여 트렌스를 구성하였을 때 출력 레귤레이션의 특성을 향상시키는데 있다.Accordingly, an object of the present invention is to enhance the insulation characteristics of the primary coil, the secondary coil and the feedback coil, and to improve the characteristics of the output regulation when the transformer is formed using the slot bobbin of the present invention.

본 발명의 또 다른 목적은 피드백코일을 3중 절연피복하지 않고, 권선하는데 있다.Still another object of the present invention is to wind a feedback coil without triple insulation coating.

도 1은 일반적인 슬롯보빈의 구조를 나타내는 입체도이고,1 is a three-dimensional view showing the structure of a general slot bobbin,

도 2는 종래의 슬롯보빈의 종단면도이고,2 is a longitudinal cross-sectional view of a conventional slot bobbin,

도 3은 종래의 슬롯보빈에 코일이 권선된 상태를 나타내는 종단면도이고,3 is a longitudinal sectional view showing a coil wound on a conventional slot bobbin,

도 4a는 본 발명의 제1예의 슬롯보빈의 종단면도이고,4A is a longitudinal sectional view of the slot bobbin of the first example of the present invention;

도 4b는 본 발명의 제2예의 슬롯보빈의 종단면도이고,4B is a longitudinal sectional view of the slot bobbin of the second example of the present invention;

도 4c는 본 발명의 제3예의 슬롯보빈의 종단면도이고,4C is a longitudinal sectional view of the slot bobbin of the third example of the present invention;

도 5는 본 발명의 슬롯보빈에 코일이 권선된 상태를 나타내는 종단면도이다.5 is a longitudinal sectional view showing a state in which a coil is wound around the slot bobbin of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

8, 18 - 단자핀 10 - 1차코일8, 18-Terminal Pin 10-Primary Coil

20 - 2차코일 30 - 피드백코일20-2nd coil 30-Feedback coil

60, 160 - 격벽 150 - 슬롯60, 160-Bulkhead 150-Slots

250 - 제1슬롯 251 - 제2슬롯250-Slot 1 251-Slot 2

상기 목적 달성을 위하여 본 발명의 슬롯보빈은 권선부의 중심축과 직각방향으로 제1슬롯과 제2슬롯을 구비하되, 상기 제1슬롯은 균일한 폭을 갖도록 복수개 구성되고, 상기 제2슬롯은 제1슬롯의 외측에 상기 제1슬롯의 폭보다 좁게 구성되고, 상기 각각의 제1슬롯 및 제2슬롯은 격벽에 의하여 서로 절연 분리되도록 구성한다.In order to achieve the above object, the slot bobbin of the present invention includes a first slot and a second slot in a direction perpendicular to the central axis of the winding part, and the plurality of first slots are configured to have a uniform width, and the second slot is formed of a second slot. It is configured to be narrower than the width of the first slot on the outside of one slot, each of the first slot and the second slot is configured to be separated from each other by the partition wall.

특히, 상기 제2슬롯의 폭은 제1슬롯의 폭의 2/3이하가 되도록 구성하고, 상기 격벽의 두께는 균일하게 구성한다.In particular, the width of the second slot is configured to be 2/3 or less of the width of the first slot, and the thickness of the barrier rib is uniformly configured.

또, 상기 제1슬롯에는 1차코일과 2차코일이 교대로 권선되고, 제2슬롯에는 2차코일이 권선된다.The primary and secondary coils are alternately wound in the first slot, and the secondary coil is wound in the second slot.

이하, 도 4a, 도 4b, 도 4c, 도 5를 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to FIGS. 4A, 4B, 4C, and 5.

1차코일(10) 및 2차코일(20) 등이 권선되는 권선부 즉, 각각의 제1슬롯(250) 및 제2슬롯(251)의 저부면 중심축과 직각방향으로 동일한 두께 t를 갖는 격벽(160)이 형성되고, 그 격벽의 형성에 의하여 제1슬롯(250)과 제2슬롯(251)의 폭이 구성된다. 제1슬롯은 a의 폭으로 격벽(260)을 개재하여 균일하게 연속되어 형성되고, 제2슬롯은 제1슬롯의 외측 즉, 도 4b와 같이 단자핀(18)과 가장 가까운 슬롯이나 도 4a와 같이 단자핀(18)과 가장 먼쪽의 슬롯에 의하여 구성되고, 제2슬롯의 폭 b는 제1슬롯의 폭a와 비교하여 2/3이하가 되도록 형성한다.The winding part to which the primary coil 10 and the secondary coil 20 are wound, that is, has the same thickness t in the direction perpendicular to the central axis of the bottom surface of each of the first slot 250 and the second slot 251. The partition wall 160 is formed, and the width of the first slot 250 and the second slot 251 is formed by the formation of the partition wall. The first slot is formed to be uniformly continuous through the partition wall 260 with a width of a, and the second slot is the outer side of the first slot, that is, the slot closest to the terminal pin 18 as shown in FIG. Similarly, the terminal pin 18 is formed of the farthest slot, and the width b of the second slot is formed to be 2/3 or less compared with the width a of the first slot.

상기와 같이 제2슬롯(251)을 제1슬롯(250)의 외측에 1개만 구성할 수도 있고, 필요에 따라서는 도 4c 와 같이 제1슬롯(250)을 센드위치하는 형태로 구성하여도 된다.As described above, only one second slot 251 may be configured on the outer side of the first slot 250, and if necessary, the second slot 251 may be configured to send-end the first slot 250 as shown in FIG. 4C.

상기와 같이 구성되는 본 발명의 슬롯보빈을 이용하여 도 5와 같이 제1슬롯에 1차코일(10)과 2차코일(20)을 교대로 권선하고, 2차코일(20)이 권선된 슬롯에 인접하는 제2슬롯에 피드백코일(30)을 권선한다.By using the slot bobbin of the present invention configured as described above, the primary coil 10 and the secondary coil 20 are alternately wound in the first slot as shown in FIG. 5, and the secondary coil 20 is wound in the slot. The feedback coil 30 is wound around the second slot adjacent to the feedback coil 30.

본 발명의 슬롯보빈에 권선된 피드백코일은 제1슬롯(250)보다 좁은 폭을 갖는 제2슬롯(251)에 권선되므로 피드백코일의 턴 수가 적더라도 코일의 적층높이가 높아지므로 2차코일(20)의 권선 높이에 근접하는 높이로 권선할 수 있다.Since the feedback coil wound on the slot bobbin of the present invention is wound on the second slot 251 having a narrower width than the first slot 250, the secondary coil 20 may be increased even if the number of turns of the feedback coil is small. Can be wound to a height close to the winding height.

본 발명은 슬롯형상으로 형성된 보빈에 피드백코일(30)을 권선할 수 있는 2차슬롯을 1차코일 및 2차코일을 권선할 수 있는 1차슬롯의 폭보다 좁게 외측에 구성하여 주므로써, 피드백코일의 누설인덕턴스가 작아지므로 트랜스를 구성하였을 때 출력의 레귤레이션 특성이 좋아지고, 특히, 1차코일 및 2차코일과의 절연성확보를 확실히 할 수 있다.According to the present invention, a secondary slot capable of winding the feedback coil 30 to a bobbin formed in a slot shape is configured to be narrower than the width of the primary coil and the primary slot capable of winding the secondary coil, thereby providing feedback. Since the leakage inductance of the coil is reduced, the regulation characteristics of the output are improved when the transformer is configured, and in particular, the insulation between the primary coil and the secondary coil can be secured.

또, 2차코일과 완전히 분리되어 별도의 슬롯에 피드백코일이 권선되기 때문에 피드백코일을 절연하기 위한 별도의 절연막이 필요없으므로 원가절감 및 작업성을 개선할 수 있는 이점이 있다.In addition, since the feedback coil is wound in a separate slot completely separated from the secondary coil, there is no need for a separate insulating film to insulate the feedback coil, thereby reducing cost and improving workability.

Claims (4)

권선부의 중심축과 직각방향으로 제1슬롯과 제2슬롯을 구비하되, 상기 제1슬롯은 균일한 폭을 갖도록 복수개 구성되고, 상기 제2슬롯은 제1슬롯의 외측부에 상기 제1슬롯의 폭보다 좁게 구성되고, 상기 각각의 제1슬롯 및 제2슬롯은 격벽에 의하여 서로 절연 분리되도록 구성되는 것을 특징으로하는 슬롯보빈.A first slot and a second slot are provided in a direction perpendicular to the central axis of the winding part, wherein the first slot is configured in plural to have a uniform width, and the second slot has a width of the first slot on an outer side of the first slot. The slot bobbin is configured to be narrower, each of the first slot and the second slot is configured to be separated from each other by the partition wall. 제1항에 있어서,The method of claim 1, 상기 제2슬롯의 폭은 제1슬롯의 폭의 2/3이하가 되고 상기 격벽의 두께는 각각 균일하게 구성되는 것을 특징으로하는 슬롯보빈.The slot bobbin is characterized in that the width of the second slot is less than 2/3 of the width of the first slot and the thickness of the partition wall is uniformly configured. 제1항에 있어서,The method of claim 1, 상기 제2슬롯은 가장 외측부에 위치하는 상기 제1슬롯의 적어도 한쪽의 외측부에 구성되는 것을 특징으로하는 슬롯보빈.And the second slot is configured on at least one outer side of the first slot positioned at the outermost side. 제1항에 있어서,The method of claim 1, 상기 제1슬롯에는 1차코일과 2차코일이 교대로 권선되고, 제2슬롯에는 피드백코일이 권선되는 것을 특징으로하는 슬롯보빈.The slot bobbin, characterized in that the first coil and the secondary coil is wound alternately in the first slot, the feedback coil is wound in the second slot.
KR1019990009931A 1999-03-23 1999-03-23 Slot bobbin KR100318416B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368776B1 (en) * 2012-07-17 2014-02-27 티디케이한국 주식회사 Transformer
KR101499720B1 (en) * 2013-08-30 2015-03-06 삼성전기주식회사 Choke coil and poswer supply device having the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368776B1 (en) * 2012-07-17 2014-02-27 티디케이한국 주식회사 Transformer
KR101499720B1 (en) * 2013-08-30 2015-03-06 삼성전기주식회사 Choke coil and poswer supply device having the same

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