JPH0378218A - High frequency thin-type transformer - Google Patents
High frequency thin-type transformerInfo
- Publication number
- JPH0378218A JPH0378218A JP1214073A JP21407389A JPH0378218A JP H0378218 A JPH0378218 A JP H0378218A JP 1214073 A JP1214073 A JP 1214073A JP 21407389 A JP21407389 A JP 21407389A JP H0378218 A JPH0378218 A JP H0378218A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- printed wiring
- sides
- iron core
- central leg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims description 62
- 230000000694 effects Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、印刷配線による巻線を有する高周波薄型トラ
ンスに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high frequency thin transformer having a winding formed by printed wiring.
高周波トランスは、巻線の巻数が少なくて済むことから
、印刷配線により巻線を構成し、全体を薄型とした構成
が知られている。このような高周波薄型トランスを更に
小型化することが要望されている。Since high-frequency transformers require only a small number of winding turns, it is known that the windings are formed of printed wiring, and the overall structure is made thin. There is a demand for further miniaturization of such high frequency thin transformers.
第７図は従来例の高周波薄型トランスの一例の分解斜視
図を示し、Ｅ型の鉄心３１．３５は、それぞれ中央脚部
３２．３６と側脚部３３，３４゜３７．３８とを有し、
又巻線部４１．５１は、絶縁基板４２．５２の両面に、
印刷配線４３．５３（裏面の印刷配線は絶縁基板４２．
５２により隠蔽されている）が施され、印刷配線４３．
５３上にレジスト等の絶縁膜が形成され、両面の印刷配
線間はスルーホール等による接続部４６．５６により接
続されて、２ターンの巻線となり、巻線部４１．５１間
或いは外部端子４７．４８と接続する為の接続端子４４
，４５，５４．５５が形成されている。FIG. 7 shows an exploded perspective view of an example of a conventional high-frequency thin transformer, in which an E-shaped core 31, 35 has a central leg 32, 36 and side legs 33, 34, 37, 38, respectively. ,
In addition, the winding portion 41.51 is provided on both sides of the insulating substrate 42.52.
Printed wiring 43.53 (The printed wiring on the back side is the insulating substrate 42.
52) and the printed wiring 43.
An insulating film such as a resist is formed on the wiring 53, and the printed wirings on both sides are connected by connecting parts 46 and 56 such as through holes, forming a two-turn winding, and between the winding parts 41 and 51 or the external terminal 47. Connection terminal 44 for connecting with .48
, 45, 54.55 are formed.
鉄心３１．３５の中央脚部３２．３６に、巻線部４１．
５１を重ねてその中央孔を挿入し、鉄心３１．３５を接
着或いは外側から締めつけて固定し、外部端子４７．４
８と接続端子４５．５４とを接続し、接続端子４４．５
５を接続線４９により接続して、４ターンの巻線を形成
する。実際には、−次巻線と二次巻線支には三次巻線を
、前述のような巻線部をそれぞれ１個或いは複数個用い
て構成するものである。On the central leg 32.36 of the iron core 31.35, a winding 41.
51 and insert the central hole thereof, fix the iron core 31.35 by gluing or tightening it from the outside, and then attach the external terminal 47.4.
8 and the connecting terminal 45.54, and connect the connecting terminal 44.5.
5 are connected by a connecting wire 49 to form a 4-turn winding. In reality, the -order winding and the secondary winding support are each constructed with a tertiary winding using one or more winding portions as described above.
印刷配線により巻線を形成することにより、薄型とする
ことができるが、電流容量の関係から通常は、絶縁基板
４２．５２の両面にそれぞれ１ターンの印刷配線を施し
、両面の印刷配線を接続することにより、２ターンの巻
線を形成し、所望のターン数となるように、巻線部を重
ねて直列接続することになる。Forming a winding with printed wiring can make it thin, but due to current capacity, one turn of printed wiring is applied to each side of the insulating substrate 42, 52, and the printed wiring on both sides is connected. By doing so, a two-turn winding is formed, and the winding portions are overlapped and connected in series so as to have the desired number of turns.
その場合、第７図に示すように、接続線４９は接続端子
４４．５５間を斜めに接続することになり、接続作業が
容易でなく、且つ相互の絶縁処理が必要となる。従って
、更にターン数を多くする場合には、斜めに接続する接
続線４９の数が多くなるので、−層作業性が悪化し、且
つ高周波特性が低下する欠点が生じる。In that case, as shown in FIG. 7, the connection wire 49 will connect the connection terminals 44 and 55 diagonally, making the connection work difficult and requiring mutual insulation treatment. Therefore, when the number of turns is further increased, the number of diagonally connected connecting wires 49 increases, resulting in disadvantages of poor layer workability and deterioration of high frequency characteristics.
本発明は、作業性を改善し、且つ高周波特性を向上させ
ることを目的とするものである。The present invention aims to improve workability and improve high frequency characteristics.
本発明の高周波薄型トランスは、印刷配線による巻線部
間の接続を容易に行うことができるようにしたものであ
り、第１図、第２図及び第３図を参照して説明する。The high-frequency thin transformer of the present invention allows easy connection between winding parts by printed wiring, and will be described with reference to FIGS. 1, 2, and 3.
円柱状の中央脚部２と、この中央脚部２の両側の側脚部
３，４とを有する鉄心１と、この中央脚部２に挿入し得
る孔を有する環状部５と、この環状部５から外側に突出
する突出部６とを有する絶縁基板７の両面に印刷配線８
を形成し、この印刷配線８の接続端子９を前記突出部６
に形成した巻線部１０とを備え、この巻線部１ｏを鉄心
１の中央脚部２に複数個重ねて挿入し、この中央脚部２
を中心とした突出部６の角度をずらして上下の接続端子
９間を接続し、印刷配線８間を直列に接続した構成とし
たものである。An iron core 1 having a cylindrical central leg portion 2, side leg portions 3 and 4 on both sides of the central leg portion 2, an annular portion 5 having a hole that can be inserted into the central leg portion 2, and this annular portion. Printed wiring 8 is printed on both sides of an insulating substrate 7 having a protruding portion 6 protruding outward from the insulating substrate 7.
The connection terminal 9 of this printed wiring 8 is connected to the protrusion 6.
A plurality of winding parts 1o are inserted into the central leg part 2 of the iron core 1 in a stacked manner, and the central leg part 2
The upper and lower connection terminals 9 are connected by shifting the angle of the protrusion 6 with respect to the center, and the printed wiring 8 is connected in series.
絶縁基板７の突出部６に、絶縁基板７の表裏の印刷配線
８の接続端子９が並設されており、複数個の巻線部１０
を重ねて直列接続する場合に、下側の巻線部の表面の印
刷配線の接続端子９と、上側の巻線部の裏面の印刷配線
の接続端子９とが、上下に一致するように、突出部６の
角度を相互にずらすものである。それにより、巻線部１
０間の接続端子９を相互に接続する場合に、上下の位置
を一致させて、最短距離で接続することができ、作業性
が良く、且つ高周波特性が改善される。Connecting terminals 9 of printed wiring 8 on the front and back sides of the insulating substrate 7 are arranged in parallel on the protrusion 6 of the insulating substrate 7, and a plurality of winding portions 10
When stacking and connecting in series, make sure that the connection terminal 9 of the printed wiring on the surface of the lower winding section and the connection terminal 9 of the printed wiring on the back surface of the upper winding section are vertically aligned. The angles of the protrusions 6 are shifted from each other. As a result, the winding part 1
When connecting the connecting terminals 9 between the two terminals 9 to each other, the upper and lower positions can be matched and the connection can be made over the shortest distance, resulting in good workability and improved high frequency characteristics.
以下図面を参照して本発明の実施例について詳細に説明
する。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明の実施例の巻線部の上面図であり、巻線
部１０は、環状部５と突出部６とを有する絶縁基板７の
両面に斜線及び点線で示すように印刷配線８を形成し、
突出部６に接続端子９を形成し、表裏の印刷配線８間を
スルーホール等の接続部１１により接続して、２ターン
の巻線を形成し、接続端子９を除いてレジスト等の絶縁
膜が形成されている。なお、このような絶縁膜を省略し
て、巻線部１０を重ねる時に、相互の印刷配線８間を絶
縁する為の絶縁箔等を介在させることも可能である。FIG. 1 is a top view of the winding part of the embodiment of the present invention, and the winding part 10 has printed wiring as shown by diagonal lines and dotted lines on both sides of an insulating substrate 7 having an annular part 5 and a protruding part 6. form 8,
A connecting terminal 9 is formed on the protruding part 6, and the printed wiring 8 on the front and back sides are connected by a connecting part 11 such as a through hole to form a two-turn winding. is formed. Note that it is also possible to omit such an insulating film and to interpose an insulating foil or the like for insulating the printed wirings 8 from each other when the winding portions 10 are stacked.
又第２図及び第３図は本発明の実施例の鉄心の横断面図
及び縦断面図を示し、円柱状の中央脚部２とその両側の
側脚部３．４とを有し、その鉄心１は、例えば、第３図
の点線で示す位置で分割可能としたＥＥ鉄心構成とする
か、或いは他の位置で分割可能としたＥｌ鉄心構成とす
ることができる。2 and 3 show a cross-sectional view and a vertical cross-sectional view of an iron core according to an embodiment of the present invention, which has a cylindrical central leg portion 2 and side leg portions 3.4 on both sides thereof. The iron core 1 may have, for example, an EE core configuration that can be divided at the position indicated by the dotted line in FIG. 3, or an El iron core configuration that can be divided at other positions.
第１図に示す巻線部１０を複数個重ねて、環状部５の孔
に鉄心１の中央脚部２を挿入し、各巻線部１０の突出部
６を、接続すべき接続端子９が上下に一致するようにず
らして、直線状の接続線により接続端子９間を接続する
。Stack a plurality of winding parts 10 shown in FIG. The connection terminals 9 are connected by a straight connection line, with the connection terminals 9 being shifted so as to match.
第４図は本発明の実施例の上面図、第５図はその概略側
面図であり、鉄心ｌに、巻線部１０ａ〜１０ｅを重ねて
設け、巻線部１０ａ〜１０ｃを直列に接続した場合を示
す。絶縁基板７の表面に形成した印刷配線８の接続端子
９−１と、裏面に形成した印刷配線８の接続端子９−２
との中心角をθとすると、巻線部１０ ａ、 １０
ｂ、 １０ ｃのそれぞれの突出部を、角度θだけず
らすことにより、巻線部１０ａの接続端子９−２と、巻
線部１０ｂの接続端子９−１との上下の位置が一致し、
巻線部１０ｂの接続端子９−２と巻線部１０ｃの接続端
子９−１との上下の位置が一致する。FIG. 4 is a top view of an embodiment of the present invention, and FIG. 5 is a schematic side view thereof, in which winding portions 10a to 10e are provided overlappingly on the iron core l, and the winding portions 10a to 10c are connected in series. Indicate the case. A connecting terminal 9-1 of the printed wiring 8 formed on the front surface of the insulating substrate 7 and a connecting terminal 9-2 of the printed wiring 8 formed on the back surface
If the central angle with
By shifting the respective protrusions of b and 10c by the angle θ, the vertical positions of the connection terminal 9-2 of the winding part 10a and the connection terminal 9-1 of the winding part 10b match,
The vertical positions of the connection terminal 9-2 of the winding part 10b and the connection terminal 9-1 of the winding part 10c match.
そこで、巻線部１０ａの接続端子９−２と巻線部１０ｂ
の接続端子９−１とを接続ピン１２ｂにより接続し、巻
線部１０ｂの接続端子９−２と巻線部１０ｃの接続端子
９−１とを接続ピン１２ｃにより接続することにより、
６ターンの巻線が構成される。Therefore, the connection terminal 9-2 of the winding part 10a and the winding part 10b
By connecting the connecting terminal 9-1 of the winding part 10b and the connecting terminal 9-1 of the winding part 10c by the connecting pin 12c,
A winding of 6 turns is constructed.
このような高周波薄型トランスを印刷配線基板１３上に
搭載し、巻線部１０ａの接続端子９−１に接続ピン１２
ａ、巻線部１０ｃの接続端子９−２に接続ピン１２ｄを
それぞれ接続して、接続ピン１０ａ〜１０ｄを印刷配線
基板１３のスルーホールに挿入して、裏面の印刷配線と
半田等により接続することによって、高周波薄型トラン
スの接続及び固定を行うことができる。なお、接続ピン
１２ｂ、１２ｃは、巻線のタップに相当することになる
。Such a high frequency thin transformer is mounted on the printed wiring board 13, and the connecting pin 12 is connected to the connecting terminal 9-1 of the winding portion 10a.
a. Connect the connecting pins 12d to the connecting terminals 9-2 of the winding part 10c, insert the connecting pins 10a to 10d into the through holes of the printed wiring board 13, and connect them to the printed wiring on the back side by soldering or the like. By doing so, the high frequency thin transformer can be connected and fixed. Note that the connection pins 12b and 12c correspond to taps of the winding.
例えば、巻線部１０ａ〜１０ｃにょる６ターンの巻線を
一次巻線とし、２個の巻線部を上下に重ねて２ターンの
並列巻線とした巻線部１０ｄを、２ターンの二次巻線と
し、１個の巻線部１０ｅを三次巻線として、数１００Ｋ
Ｈｚのスイッチング周波数のスイッチング・レギュレー
タのトランスとすることができる。For example, the 6-turn winding in the winding parts 10a to 10c is used as the primary winding, and the winding part 10d is made into a 2-turn parallel winding by stacking the two winding parts vertically, and the 2-turn secondary winding is used as the primary winding. As the secondary winding, one winding part 10e is used as the tertiary winding, several 100K
It can be a switching regulator transformer with a switching frequency of Hz.
第６図は本発明の他の実施例の巻線部の上面図であり、
鉄心の側脚部等に空隙を形成する場合の巻線部２０を示
すものである。即ち、環状部１５と突出部１６と空隙形
成用の突部２２とを有する絶縁基板１７の両面に印刷配
線１８を形成し、突出部１６に接続端子１９−１．１９
−２を形成したものである。この巻線部２０と、第１図
に示す巻線部１０とを組合せて用いることができるもの
であり、絶縁基板１７の厚さに対応した空隙を鉄心１に
形成することができる。FIG. 6 is a top view of the winding part of another embodiment of the present invention,
This figure shows the winding portion 20 in the case where a gap is formed in the side legs of the iron core. That is, printed wiring 18 is formed on both sides of an insulating substrate 17 having an annular portion 15, a protrusion 16, and a protrusion 22 for forming a gap, and connecting terminals 19-1.19 are formed on the protrusion 16.
-2 was formed. This winding portion 20 and the winding portion 10 shown in FIG. 1 can be used in combination, and a gap corresponding to the thickness of the insulating substrate 17 can be formed in the iron core 1.
以上説明したように、本発明の高周波薄型トランスは、
環状部５と突出部６とを有する絶縁基板７の両面に印刷
配線８を形成して、両面の印刷配線８を接続して２ター
ンの巻線とすると共に、突出部６に接続端子９を形成し
、複数の巻線部１０を重ねて、鉄心１の円柱状の中央脚
部２に挿入して、突出部６を相互にずらして上下の接続
端子９間を接続することにより、直列接続とすることが
できるから、ターン数を多く必要とする場合に於いても
、巻線部１０間の接続作業が非常に簡単となると共に、
接続距離を短くすることができるから、高周波特性を改
善することができる利点がある。As explained above, the high frequency thin transformer of the present invention has
Printed wiring 8 is formed on both sides of an insulating substrate 7 having an annular part 5 and a protruding part 6, and the printed wiring 8 on both sides are connected to form a two-turn winding, and a connecting terminal 9 is connected to the protruding part 6. A series connection is made by stacking a plurality of winding parts 10, inserting them into the cylindrical central leg part 2 of the iron core 1, and connecting the upper and lower connection terminals 9 by shifting the protruding parts 6 from each other. Therefore, even when a large number of turns are required, the connection work between the winding parts 10 is very simple, and
Since the connection distance can be shortened, there is an advantage that high frequency characteristics can be improved.
又電流容量を大きくする場合は、突出部を相互にずらす
ことなく一致させて、上下の接続端子９間を接続するこ
とにより、任意数の並列接続も容易となる。In addition, when increasing the current capacity, connecting the upper and lower connection terminals 9 by aligning the protrusions without shifting each other facilitates parallel connection of any number of terminals.
第１図は本発明の実施例の巻線部の上面図、第２図は本
発明の実施例の鉄心の横断面図、第３図は本発明の実施
例の鉄心の縦断面図、第４図は本発明の実施例の上面図
、第５図は本発明の実施例の概略側面図、第６図は本発
明の他の実施例の巻線部の上面図、第７図は従来例の分
解斜視図である。
１は鉄心、２は中央脚部、３．４は側脚部、５は環状部
、６は突出部、７は絶縁基板、８は印刷配線、９は接続
端子、１０は巻線部である。FIG. 1 is a top view of the winding section of the embodiment of the present invention, FIG. 2 is a cross-sectional view of the core of the embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of the core of the embodiment of the present invention. 4 is a top view of an embodiment of the present invention, FIG. 5 is a schematic side view of an embodiment of the present invention, FIG. 6 is a top view of a winding section of another embodiment of the present invention, and FIG. 7 is a conventional FIG. 3 is an exploded perspective view of an example. 1 is an iron core, 2 is a central leg, 3.4 is a side leg, 5 is an annular portion, 6 is a protruding portion, 7 is an insulating substrate, 8 is a printed wiring, 9 is a connecting terminal, and 10 is a winding portion .
Claims (1)
の側脚部（３，４）とを有する鉄心（１）と、 前記中央脚部（２）に挿入し得る孔を有する環状部（５
）と、該環状部（５）から外側に突出する突出部（６）
とを有する絶縁基板（７）の両面に印刷配線（８）を施
し、該印刷配線（８）の接続端子（９）を前記突出部（
６）に形成した巻線部（１０）とを備え、 該巻線部（１０）を前記鉄心（１）の中央脚部（２）に
複数個重ねて挿入し、該中央脚部（２）を中心とした前
記突出部（６）の角度をずらして上下の前記接続端子（
９）間を接続し、前記印刷配線（８）間を直列に接続し
た構成を有することを特徴とする高周波薄型トランス。[Scope of Claims] An iron core (1) having a cylindrical central leg (2) and side legs (3, 4) on both sides of the central leg (2); ) with a hole that can be inserted into the annular part (5
), and a protrusion (6) protruding outward from the annular portion (5).
Printed wiring (8) is applied to both sides of an insulating substrate (7) having
6), a plurality of the winding parts (10) are inserted into the central leg part (2) of the iron core (1) in a stacked manner, and the central leg part (2) The upper and lower connecting terminals (
9), and the printed wiring (8) is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214073A JPH07111932B2 (en) | 1989-08-22 | 1989-08-22 | High frequency thin transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214073A JPH07111932B2 (en) | 1989-08-22 | 1989-08-22 | High frequency thin transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0378218A true JPH0378218A (en) | 1991-04-03 |
| JPH07111932B2 JPH07111932B2 (en) | 1995-11-29 |
Family
ID=16649801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1214073A Expired - Fee Related JPH07111932B2 (en) | 1989-08-22 | 1989-08-22 | High frequency thin transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07111932B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724016A (en) * | 1995-05-04 | 1998-03-03 | Lucent Technologies Inc. | Power magnetic device employing a compression-mounted lead to a printed circuit board |
| US5952909A (en) * | 1994-06-21 | 1999-09-14 | Sumitomo Special Metals Co., Ltd. | Multi-layered printed-coil substrate, printed-coil substrates and printed-coil components |
| US6069548A (en) * | 1996-07-10 | 2000-05-30 | Nokia Telecommunications Oy | Planar transformer |
| US6154111A (en) * | 1998-04-27 | 2000-11-28 | Deutsche Thomson-Brandt Gmbh | Storage coil |
| US6239683B1 (en) * | 1995-05-04 | 2001-05-29 | Tyco Electronics Logistics A.G. | Post-mountable planar magnetic device and method of manufacture thereof |
| US6307457B1 (en) * | 1997-12-17 | 2001-10-23 | U.S. Philips Corporation | Planar transformer |
| US6466454B1 (en) * | 1999-05-18 | 2002-10-15 | Ascom Energy Systems Ag | Component transformer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117962A (en) * | 1973-03-16 | 1974-11-11 |
-
1989
- 1989-08-22 JP JP1214073A patent/JPH07111932B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117962A (en) * | 1973-03-16 | 1974-11-11 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5952909A (en) * | 1994-06-21 | 1999-09-14 | Sumitomo Special Metals Co., Ltd. | Multi-layered printed-coil substrate, printed-coil substrates and printed-coil components |
| US5724016A (en) * | 1995-05-04 | 1998-03-03 | Lucent Technologies Inc. | Power magnetic device employing a compression-mounted lead to a printed circuit board |
| US6128817A (en) * | 1995-05-04 | 2000-10-10 | Lucent Technologies Inc. | Method of manufacturing a power magnetic device mounted on a printed circuit board |
| US6239683B1 (en) * | 1995-05-04 | 2001-05-29 | Tyco Electronics Logistics A.G. | Post-mountable planar magnetic device and method of manufacture thereof |
| US6262649B1 (en) * | 1995-05-04 | 2001-07-17 | Tyco Electronics Logistics Ag | Power magnetic device employing a leadless connection to a printed circuit board and method of manufacture thereof |
| US6069548A (en) * | 1996-07-10 | 2000-05-30 | Nokia Telecommunications Oy | Planar transformer |
| US6307457B1 (en) * | 1997-12-17 | 2001-10-23 | U.S. Philips Corporation | Planar transformer |
| US6154111A (en) * | 1998-04-27 | 2000-11-28 | Deutsche Thomson-Brandt Gmbh | Storage coil |
| US6466454B1 (en) * | 1999-05-18 | 2002-10-15 | Ascom Energy Systems Ag | Component transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07111932B2 (en) | 1995-11-29 |
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