JPS587807A - Transformer - Google Patents
TransformerInfo
- Publication number
- JPS587807A JPS587807A JP10589881A JP10589881A JPS587807A JP S587807 A JPS587807 A JP S587807A JP 10589881 A JP10589881 A JP 10589881A JP 10589881 A JP10589881 A JP 10589881A JP S587807 A JPS587807 A JP S587807A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- coil
- view
- substrate
- ferrite
- 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 6
- 230000004907 flux Effects 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 13
- 238000004804 winding Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001259 photo etching Methods 0.000 abstract description 3
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
Abstract
Description
【発明の詳細な説明】
本発明は、例えにスイッチングＳ部用トランスに関する
ものであり、基板にフォトエツチング等で作製したコイ
ルｃ以下、プリントコイルと云う）と、金属酸化物磁性
材料（以下、７冥ライトと云う）の磁芯とでトランスを
形成することにより１小ｉｉ＋−ａｉＭで安価なトラン
スを提供することを目的とする。更にｔこのトランス磁
芯の一部に出力電圧可変用磁路【設け、高効率スイッチ
ング電源を提供することもできる〇
第１ｗＪおよび第ｇＷＪは民生用機器や通信等の産業機
器に用いられるスイッチング電源に使用されている一般
のトランスの各偶の正肉図を示す。同一機能を有する部
品には同一番号を付す。各図中１次善ｉｌｌ及び２次巻
線２は、ボビン３にエナメル銅線等を巻線することによ
り形成され、巻線の總こされたボビン３ ｔ 、磁芯５
＆、５１１で挾持し、第２図においては、突き合わせた
磁芯を取付板番にて固定することでトランスを形成して
いる。第１図の例のトランスにおいては）突さ合わゼ部
を締付テープで固定することもで龜る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates, for example, to a transformer for a switching S section, and includes a coil c (hereinafter referred to as a printed coil) fabricated on a substrate by photoetching or the like, and a metal oxide magnetic material (hereinafter referred to as a printed coil). The purpose of the present invention is to provide an inexpensive transformer of 1 small ii+-aiM by forming a transformer with a magnetic core of 7-metal light. Furthermore, a magnetic path for variable output voltage can be provided in a part of the transformer magnetic core to provide a high-efficiency switching power supply.The 1st wJ and gWJ are switching power supplies used in consumer equipment and industrial equipment such as communications. This figure shows a full-scale drawing of each couple of a general transformer used in the industry. Parts with the same function are given the same number. In each figure, the primary winding 2 and the secondary winding 2 are formed by winding an enameled copper wire or the like around the bobbin 3, and the bobbin 3 t on which the winding is wound, the magnetic core 5
&, 511, and in FIG. 2, a transformer is formed by fixing the abutted magnetic cores with a mounting plate number. In the transformer shown in FIG. 1, it is also difficult to fix the abutting and projecting parts with tightening tape.
この様な構造を有する従来のトランスにおいてはボビン
の構造上トランス全体の高さ寸法に限度があり偏平な形
状のものを皺伸することは困難であり１プリント基板に
トランス會装着した場合、他の電子部品に比較して異常
に高くなり、例えば電源装置の小塵化・薄抛化に対して
欠点があった。In conventional transformers with such a structure, there is a limit to the overall height of the transformer due to the structure of the bobbin, and it is difficult to unwrinkle a flat shape. It is abnormally expensive compared to other electronic components, and has disadvantages in making power supply devices smaller and thinner, for example.
更に従来の巻線によるコイルでは、ボビンに施した＊ｓ
のリード線処理方法として手作業でプリント基板にへン
ダ付けするかもしくはピン付ボビンを使用しリード線を
ビンにからけてへンダ上けしたものをブリンシ基板に装
着している〇この様にトランスの製作において完全自動
化が困難であり、他の部品と比較してトランスが非常に
高価になるという欠点がある。Furthermore, in conventional winding coils, *s applied to the bobbin
The lead wire processing method is to manually solder it to the printed circuit board, or use a bobbin with pins to wrap the lead wire in a bobbin, solder it, and attach it to the printed circuit board. Like this. The disadvantage is that it is difficult to fully automate the manufacturing of transformers, and that transformers are very expensive compared to other parts.
又、スイッチング電源に使用する場合を例に取ると、ス
イッチング素子及び他の電子部品の高性能化によりスイ
ッチング周波数が高くなって行く傾向にあるが、コイル
の４ＩＩｌｌに関しては、出方電圧Ｖａ、スイッチング
周波１１ｆ％磁芯有効断面積ム−）使用最大磁束密＆１
ｍ （Ｇａｕ＊廖）とすれｔｆｓｇ次（出力）春線数夏
虐は、
）ｉＰ−−× λ０１
４ｆＡＩｌ鳳
となり、周波数が高くなることによって低電圧電源にお
いては特に２次巻線数が少なくなる。In addition, if we take the case of use in a switching power supply as an example, the switching frequency tends to become higher due to the higher performance of switching elements and other electronic components. Frequency 11f% Magnetic core effective cross-sectional area M) Maximum magnetic flux density used &1
m (Gau＊廖) and tfsg next (output) spring wire number summer is )iP--× λ01 4fAIl鳳As the frequency increases, the number of secondary windings decreases, especially in low-voltage power supplies. .
この様な出力コイル巻数の極端に少ないトランスでは出
力電圧の設定に際して、当然電圧変動率は考慮するとし
ても、コイルの巻線数の加減では充分対応出来ず電源の
効率をあまり上けることが出来ないという欠点がある。In such a transformer with an extremely small number of turns in the output coil, even if the voltage fluctuation rate is taken into account when setting the output voltage, it cannot be adequately addressed by adjusting the number of turns in the coil, and the efficiency of the power supply cannot be improved much. There is a drawback that there is no
本発明によるトランスは、上記欠点を除去したものであ
り、第３図に実施例正面図及び第４ｆ／４に開平１ｌｌ
Ｉ図を示す。The transformer according to the present invention eliminates the above-mentioned drawbacks, and the front view of the embodiment is shown in FIG.
Figure I is shown.
両図において同一部分は同一符号にて示す６．１次コ仁
り１と２次コイルｓ！！は、両面プリント基板３３に７
オトエツチング等で作成したプリントフィルト磁芯３４
ａ、％ と合わせてトランスを形成しているＱ本発明の
）ランスは、プリントコイルの使用により、トランスの
高さを５■程度とすることが出来る上、従来の様な巻線
によらないコイルの為、トランスのコストを大巾に低下
させることか出来る。In both figures, the same parts are indicated by the same symbols. 6. Primary coil 1 and secondary coil s! ! 7 on the double-sided printed circuit board 33.
Printed filter magnetic core 34 created by etching etc.
The (Q) lance of the present invention, which forms a transformer together with a and %, uses printed coils to allow the height of the transformer to be approximately 5 cm, and does not require winding as in conventional methods. Because it is a coil, it is possible to significantly reduce the cost of the transformer.
第５図及び第５ｌｉ）に各々プリント基板に本発明によ
るトランスを装着した装置例の側面図を示す。FIGS. 5 and 5li) are side views of an example of a device in which a transformer according to the present invention is mounted on a printed circuit board, respectively.
Ｂ２はトランジスタ、工０．抵抗、コンデンサ等の他の
電子部品を装着する部分を表わしている。第５図は、本
発明のトランス５１を同一基板上に装着 。B2 is a transistor, 0. It represents the part where other electronic components such as resistors and capacitors are attached. FIG. 5 shows a transformer 51 of the present invention mounted on the same board.
した例、第６図は、本発明のトランス６１を取付ビ／６
６Ｙｔ介ＬＴ７’ｌＪント基板に装着した例である。FIG. 6 shows an example in which the transformer 61 of the present invention is installed in
This is an example in which the 6Yt-LT7'lJ is mounted on a LT7'lJ client board.
両例において、板状トランスの固定には取付金具５４．
６４で行なっている。これらの例で示している様に１従
来のトランスを使用する場合に比較して非常に小型・薄
型の電源が製作可能となる・次に本発明における出方電
圧可変機構についてＩｌ！明する・
第７図（＆） Ｃｂ）として、本発明のトランスを形成
する下側フェライト磁芯の正面図、平面図を示す０第８
図（Ｂ９ （Ｉｔ）として同上側７エライト磁芯の正面
図、平面図を示す。第９図には、これらフェライトで挾
持されるべきプリントコイルの平ＷＪ図を示す。In both examples, a mounting bracket 54 is used to fix the plate-shaped transformer.
64. As shown in these examples, 1. It is possible to manufacture a power supply that is much smaller and thinner than when using a conventional transformer.Next, let's talk about the output voltage variable mechanism of the present invention! Figure 7 (&) Cb) shows a front view and a plan view of the lower ferrite magnetic core forming the transformer of the present invention.
Figure (B9 (It) shows a front view and a plan view of the same upper 7-elite magnetic core. Fig. 9 shows a flat WJ diagram of the printed coil to be held between these ferrites.
プリント基板９４をフェライト磁芯７１ａ、 ７１ｂの
間に挿入し、トランスを形成する。基板９４上には、フ
ェライト磁芯９ｇａ、Ｂｇｂがつき合うように空孔部９
５が、プリント基板９４に設けられている。１次コイル
９６により発生した磁束φは９ム、Ｂｇｂ ｔ−通って
、フェライト磁芯のスリーブ部７４＆、８４ｂ通過する
ことで閉磁路を形成する。A printed circuit board 94 is inserted between ferrite magnetic cores 71a and 71b to form a transformer. Holes 9 are formed on the substrate 94 so that the ferrite magnetic cores 9ga and Bgb are in contact with each other.
5 is provided on the printed circuit board 94. The magnetic flux φ generated by the primary coil 96 passes through the ferrite core sleeve portions 74 & 84b, thereby forming a closed magnetic path.
フェライト磁芯７１ａと８１ｋをスライド畜せることに
より７３ａ、ｑ８３ｂがつき合う様になり、７ｈ１ぬよ
り’７４ｍ 、 ８４ｂを通過していた磁束中の一部が
’７３ａ、 ８為部分を通過する様になる。By sliding the ferrite magnetic cores 71a and 81k, 73a and q83b come into contact with each other, and part of the magnetic flux that was passing through 74m and 84b from 7h1 passes through 73a and 8. Become.
２次コイル９７は？３ａ、７３ｂ部を通過する磁束とは
錯交しない様なプリントフィルにしておくことにより、
出力電圧は、７２＆部断面積と７為へ’７Ｓｂ部分接触
断面積の大きさに比例して変化させることが出来る。What about the secondary coil 97? By making the print fill so that it does not intersect with the magnetic flux passing through parts 3a and 73b,
The output voltage can be changed in proportion to the size of the 72& part cross-sectional area and the 7'7Sb part contact cross-sectional area.
本発明のトランスを適用することにより、小型安価な出
力可変機構を有するトランスを得ることが可能となる。By applying the transformer of the present invention, it becomes possible to obtain a transformer having a small and inexpensive output variable mechanism.
第１図は、従来トランスの正面図、第２図は別の従来ト
ランスの正面図、第３図は実施例の側面図、第４図は回
正［１Ｆｉ１、第５図は、本発明によるトランスをプリ
ント基板に装着した装置例の正面図、第６図は、本発明
によるトランスをプリント基板に装着した別の装置例の
正面図、第７図は、本発明のトランスを形成するフェラ
イトの分解図であり、第７図（＆） （ｂ）は各々下側
フェライトの側面図及び正面図、第８図（＆）伽）は各
々、上側７エライトの側面図及び正面図、第９図は、プ
リントコイルの平面図である。
１１：１次コイル、１２： ２次コイル、１３：ボビン
、１５＆：フェライト磁芯、１５ｂ：フェライト磁芯、
７１ａ ：フエライト磁芯、７ｈ： ７工ライト磁芯中
足部、９５：空孔、９６： １次フィル、９７：ｊｉ１
次フィル。
ど
才、３百 才５コ才７０（α
） 牙ｅ図（Ｑ
＼Fig. 1 is a front view of a conventional transformer, Fig. 2 is a front view of another conventional transformer, Fig. 3 is a side view of an embodiment, Fig. 4 is a rotation [1Fi1], Fig. 5 is a FIG. 6 is a front view of another example of a device in which a transformer according to the present invention is mounted on a printed circuit board, and FIG. 7 is a front view of another example of a device in which a transformer according to the present invention is mounted on a printed circuit board. 7(b) is a side view and front view of the lower ferrite, FIG. 8(&)(b) is a side view and front view of the upper ferrite, and FIG. 9 is an exploded view. is a plan view of the printed coil. 11: Primary coil, 12: Secondary coil, 13: Bobbin, 15&: Ferrite magnetic core, 15b: Ferrite magnetic core,
71a: Ferrite magnetic core, 7h: 7-piece light magnetic core middle foot, 95: Hole, 96: Primary fill, 97: ji1
Next fill. How old, 300 years old, 5 years old, 70 years old (α
) Fang e diagram (Q \
Claims (1)
し１このコイルを少くとも８枚の７エライ）コアにより
挾持することを特徴とする板状トランス０ ２、特許請求の範囲第１項において、１次コイルにより
発生した磁束が、２次コイルと錯交すると倉、この２次
コイルとの錯交量を可変出来る様な磁路を設け、出力Ｉ
ＥＥを可変出来ることを特徴とするトランス。[Claims] 1. A plate-shaped transformer characterized in that a coil is formed on a substrate by 7F etching or printing, and 1 this coil is held between at least eight 7-element cores. In the first range, if the magnetic flux generated by the primary coil intersects with the secondary coil, a magnetic path is provided that can vary the amount of intercrossing with the secondary coil, and the output I
A transformer characterized by being able to vary EE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10589881A JPS587807A (en) | 1981-07-07 | 1981-07-07 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10589881A JPS587807A (en) | 1981-07-07 | 1981-07-07 | Transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS587807A true JPS587807A (en) | 1983-01-17 |
| JPH0225245B2 JPH0225245B2 (en) | 1990-06-01 |
Family
ID=14419701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10589881A Granted JPS587807A (en) | 1981-07-07 | 1981-07-07 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS587807A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2659170A1 (en) * | 1990-03-02 | 1991-09-06 | Microspire Sa | Transformer or inductor of low height |
| FR2682545A1 (en) * | 1991-10-15 | 1993-04-16 | Thomson Csf | High-frequency electrical filter of any order |
| EP0855036A1 (en) * | 1995-10-06 | 1998-07-29 | THAT Corporation | Ac current sensor |
| WO2008005982A2 (en) * | 2006-07-06 | 2008-01-10 | Harris Corporation | Transformer and associated method of making |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5260744U (en) * | 1975-10-31 | 1977-05-04 | ||
| JPS54110424A (en) * | 1978-02-17 | 1979-08-29 | Ricoh Co Ltd | Transformer |
-
1981
- 1981-07-07 JP JP10589881A patent/JPS587807A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5260744U (en) * | 1975-10-31 | 1977-05-04 | ||
| JPS54110424A (en) * | 1978-02-17 | 1979-08-29 | Ricoh Co Ltd | Transformer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2659170A1 (en) * | 1990-03-02 | 1991-09-06 | Microspire Sa | Transformer or inductor of low height |
| FR2682545A1 (en) * | 1991-10-15 | 1993-04-16 | Thomson Csf | High-frequency electrical filter of any order |
| EP0855036A1 (en) * | 1995-10-06 | 1998-07-29 | THAT Corporation | Ac current sensor |
| WO2008005982A2 (en) * | 2006-07-06 | 2008-01-10 | Harris Corporation | Transformer and associated method of making |
| WO2008005982A3 (en) * | 2006-07-06 | 2008-04-24 | Harris Corp | Transformer and associated method of making |
| US7449987B2 (en) | 2006-07-06 | 2008-11-11 | Harris Corporation | Transformer and associated method of making |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0225245B2 (en) | 1990-06-01 |
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