JP3164043B2 - Trance - Google Patents
TranceInfo
- Publication number
- JP3164043B2 JP3164043B2 JP32092797A JP32092797A JP3164043B2 JP 3164043 B2 JP3164043 B2 JP 3164043B2 JP 32092797 A JP32092797 A JP 32092797A JP 32092797 A JP32092797 A JP 32092797A JP 3164043 B2 JP3164043 B2 JP 3164043B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- iron core
- bobbin
- primary
- shaped
- 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.)
- Expired - Fee Related
Links
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- Regulation Of General Use Transformers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は各種電子機器に用い
られるトランスに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer used for various electronic devices.
【０００２】[0002]
【従来の技術】従来のトランスを図１２〜図１６を用い
て説明する。まず、トランスの構成としては、図１２で
示す分解斜視図、図１３で示す斜視図のように１次コイ
ル１を巻回し、この１次コイル１の引出線を接続するピ
ン端子２を設けた１次ボビン３を、２次コイル４を巻回
し、この２次コイル４の引出線を接続されるピン端子２
を設けた２次ボビン５に組込み、２次コイル４の外周面
を絶縁性の保護テープ６で被ったものにＥ型鉄心７とＩ
型鉄心８を組込んで日の字状の鉄心を構成してトランス
としていた。2. Description of the Related Art A conventional transformer will be described with reference to FIGS. First, as a configuration of the transformer, a primary coil 1 is wound as shown in an exploded perspective view shown in FIG. 12 and a perspective view shown in FIG. 13, and a pin terminal 2 for connecting a lead wire of the primary coil 1 is provided. A primary bobbin 3 is wound around a secondary coil 4, and a pin terminal 2 to which a lead wire of the secondary coil 4 is connected
The E-shaped iron cores 7 and I are mounted on a secondary bobbin 5 provided with
The iron core 8 was incorporated to form a sun-shaped iron core to form a transformer.
【０００３】このようなトランスは、図１４に示すよう
に１次コイル１を電源９に接続し、２次コイル４にブリ
ッジダイオード１０を接続して整流し、コンデンサ１１
で平滑して負荷１２にＤＣ電圧を印加して負荷１２を駆
動するように使用されている。In such a transformer, as shown in FIG. 14, a primary coil 1 is connected to a power supply 9 and a secondary diode 4 is connected to a bridge diode 10 for rectification.
Is used to drive the load 12 by applying a DC voltage to the load 12.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記構成
ではコンデンサ１１の充放電特性により、トランスの１
次コイル１に図１５に示すような大きな高調波電流が発
生していた。この高調波電流を低減するために１次コイ
ル１の巻数を増してインダクタンスを増加させ高調波電
流を低減する方法をとることができるが、電圧変動率お
よび温度上昇が悪化するため、トランスのサイズが大き
くなり、不経済であるという課題を有するものであっ
た。However, in the above configuration, the charging and discharging characteristics of the capacitor 11 cause
A large harmonic current was generated in the secondary coil 1 as shown in FIG. In order to reduce the harmonic current, a method of increasing the number of turns of the primary coil 1 to increase the inductance and reduce the harmonic current can be adopted. However, since the voltage fluctuation rate and the temperature rise are deteriorated, the size of the transformer is reduced. And the problem is that it is uneconomical.
【０００５】また、ＤＣにより負荷１２を駆動すること
により、図１６に示すように２次ボビン５に２次コイル
４を巻回するときに発生する隙間１３により２次コイル
４から発生する振動が唸り音になるという課題も有する
ものであった。When the load 12 is driven by DC, vibration generated from the secondary coil 4 is generated by a gap 13 generated when the secondary coil 4 is wound around the secondary bobbin 5 as shown in FIG. There was also a problem of howling sounds.
【０００６】本発明は以上のような従来の欠点を除去す
るものであり、高調波電流を低減でき、唸り音を低減し
たトランスを提供することを目的とするものである。An object of the present invention is to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a transformer capable of reducing a harmonic current and reducing a growling sound.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に本発明のトランスは、１次コイルと２次コイルを装着
する中央磁脚を備えた日の字状の鉄心から構成され、上
記１次コイルと２次コイルとの間でかつ日の字状の鉄心
の中央磁脚と外側磁脚の間に１次コイルの高調波電流を
低減させる板状の磁性材を配置した構成としたものであ
る。In order to solve the above-mentioned problems, a transformer according to the present invention comprises a sun-shaped iron core having a center magnetic leg for mounting a primary coil and a secondary coil. A plate-shaped magnetic material that reduces the harmonic current of the primary coil is arranged between the secondary coil and the secondary coil and between the center magnetic leg and the outer magnetic leg of the sun-shaped iron core. It is.
【０００８】この構成とすることにより、１次コイルの
高調波電流を低減し、２次コイルで発生する唸り音も低
減することができる。[0008] With this configuration, it is possible to reduce the harmonic current of the primary coil and to reduce the growling noise generated in the secondary coil.
【０００９】[0009]
【発明の実施の形態】本発明の請求項１に記載の発明
は、１次コイルと２次コイルを装着する中央磁脚を備え
た日の字状の鉄心から構成され、上記１次コイルと２次
コイルとの間でかつ日の字状の鉄心の中央磁脚と外側磁
脚の間に１次コイルの高調波電流を低減させる板状の磁
性材を配置したものであり、１次コイルの高調波電流を
低減し、ＤＣ負荷で駆動する際に２次コイルから発生す
る唸り音も低減できることになる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a sun-shaped iron core having a center magnetic leg for mounting a primary coil and a secondary coil. A plate-like magnetic material for reducing the harmonic current of the primary coil is disposed between the secondary coil and the center magnetic leg and the outer magnetic leg of the sun-shaped iron core. And the humming noise generated from the secondary coil when driven by a DC load can be reduced.
【００１０】請求項２に記載の発明は、１次コイルと２
次コイルが積層構造で日の字状の鉄心の中央磁脚に装着
され、この１次コイルと２次コイルの間に１重または多
重に巻回した板状の磁性材を配置した構成であり、１次
コイルの高調波電流をより確実に低減することができ
る。According to a second aspect of the present invention, the primary coil and the secondary coil
A secondary coil is mounted on a central magnetic leg of a sun-shaped iron core in a laminated structure, and a single or multiple wound plate-like magnetic material is arranged between the primary coil and the secondary coil. First, the harmonic current of the primary coil can be reduced more reliably.
【００１１】請求項３に記載の発明は、１次コイルを巻
回した１次ボビンと、２次コイルを巻回した２次ボビン
を嵌合して日の字状の鉄心の中央磁脚に装着し、上記２
次ボビンの巻胴部の両側に１枚または複数枚の板状の磁
性材を取付けた構成であり、２次コイルにテンションを
与え、唸り音の発生を防止できることになる。According to a third aspect of the present invention, a primary bobbin on which a primary coil is wound and a secondary bobbin on which a secondary coil is wound are fitted to the center magnetic leg of a sun-shaped iron core. Attach the above 2
This is a configuration in which one or a plurality of plate-like magnetic materials are attached to both sides of the bobbin body of the next bobbin, so that tension is applied to the secondary coil and generation of a growling sound can be prevented.
【００１２】請求項４に記載の発明は、１次ボビンに巻
回した１次コイルの外周に両側からコ字状で板状の磁性
材を組込んだ構成であり、組立性に優れたものとでき
る。According to a fourth aspect of the present invention, a U-shaped plate-shaped magnetic material is incorporated from both sides into the outer periphery of a primary coil wound around a primary bobbin, which is excellent in assemblability. And can be.
【００１３】請求項５に記載の発明は、中鍔を有するコ
イルボビンに１次コイルと２次コイルを分割して巻回し
たものを日の字状の鉄心の中央磁脚に装着し、上記中鍔
の日の字状の鉄心の中央磁脚と外側磁脚の間に位置する
ように設けた溝に板状の磁性材を配置した構成であり、
同様に１次コイルの高調波電流の低減を図ることができ
る。According to a fifth aspect of the present invention, a coil bobbin having a middle flange is divided into a primary coil and a secondary coil and wound and attached to a center magnetic leg of a sun-shaped iron core. It is a configuration in which a plate-shaped magnetic material is arranged in a groove provided so as to be located between the center magnetic leg and the outer magnetic leg of the sun-shaped iron core of the collar,
Similarly, the harmonic current of the primary coil can be reduced.
【００１４】以下、本発明の実施の形態について図面を
用いて説明する。 （実施の形態１）本発明の実施の形態１について図１〜
図４を用いて説明する。図１〜図４において、２０は１
次ボビン２１に巻回して構成された１次コイル、２２は
１次ボビン２１の鍔部に植設されたピン端子で１次コイ
ル２０の引出線２３が接続されている。２４は２次ボビ
ン２５に巻回された２次コイル、２６は２次ボビン２５
の鍔部に設けたピン端子であり、２次コイル２４の引出
線が接続される。また、この２次ボビン２５には１次コ
イル２０を巻回した１次ボビン２１が嵌合されるように
構成されている。さらに、この２次ボビン２５の巻胴部
には図２に示すようにコ字状に形成された板状の磁性材
２７が配置され、この磁性材２７は絶縁テープ２８で覆
われて絶縁と２次ボビン２５への固定がなされている。
２次コイル２４はこの絶縁テープ２８上に巻回されてい
る。Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) FIGS.
This will be described with reference to FIG. 1 to 4, 20 is 1
A primary coil 22 wound around the secondary bobbin 21 is a pin terminal planted on a flange portion of the primary bobbin 21 and a lead wire 23 of the primary coil 20 is connected thereto. 24 is a secondary coil wound around the secondary bobbin 25, 26 is a secondary bobbin 25
And a lead terminal of the secondary coil 24 connected thereto. The secondary bobbin 25 is configured so that the primary bobbin 21 around which the primary coil 20 is wound is fitted. Further, a plate-shaped magnetic material 27 formed in a U-shape as shown in FIG. 2 is disposed on the winding drum portion of the secondary bobbin 25, and the magnetic material 27 is covered with an insulating tape 28 so as to be insulated. It is fixed to the secondary bobbin 25.
The secondary coil 24 is wound on the insulating tape 28.
【００１５】２９はＥ型鉄心、３０はＩ型鉄心で、この
両者で日の字状の鉄心を構成し、Ｅ型鉄心２９の中央磁
脚３１に１次コイル２０を嵌合した２次コイル２４が装
着され、磁性材２７は、この中央磁脚３１と両外側磁脚
３２との間で、しかも１次コイル２０と２次コイル２４
の間に配置されていることになる。Numeral 29 denotes an E-shaped iron core, and numeral 30 denotes an I-shaped iron core, both of which constitute a sun-shaped iron core, and a secondary coil in which a primary coil 20 is fitted to a central magnetic leg 31 of the E-shaped iron core 29. The magnetic material 27 is provided between the center magnetic leg 31 and both outer magnetic legs 32 and between the primary coil 20 and the secondary coil 24.
It will be located between.
【００１６】このような構成とすることにより、図３に
示すようにＥ型鉄心２９とＩ型鉄心３０で構成される日
の字状の鉄心に磁束３３が流れるが、この磁束３３をバ
イパスするように磁性材２７を通して磁束３４が流れ、
リーケージインダクタンスが増加するため、図４に示す
ように従来例の図１５に示すリーケージインダクタンス
５０ｍＨに比べてリーケージインダクタンスが２倍の１
００ｍＨになり１次コイル２０の高調波電流が各次数と
も低減されることになる。With this configuration, as shown in FIG. 3, the magnetic flux 33 flows through the sun-shaped iron core composed of the E-shaped iron core 29 and the I-shaped iron core 30, but this magnetic flux 33 is bypassed. As described above, the magnetic flux 34 flows through the magnetic material 27,
Since the leakage inductance increases, as shown in FIG. 4, the leakage inductance is twice as large as the leakage inductance 50 mH shown in FIG.
It becomes 00 mH, and the harmonic current of the primary coil 20 is reduced in each order.
【００１７】この磁性材２７の幅と厚みは、高調波電流
の低減レベルおよび２次コイル２４の巻きスペースに合
せて設定し、材質はＥ型鉄心２９、Ｉ型鉄心３０と同等
以上の透磁率で同等以上の周波数特性をもつものが望ま
しいが、幅と厚みと同様に高調波電流の低減レベルに合
せて設定することが望ましい。図４に示す各次数の高調
波電流特性は磁性材２７として方向性珪素剛板を使用し
た場合を示している。The width and thickness of the magnetic material 27 are set in accordance with the reduction level of the harmonic current and the winding space of the secondary coil 24, and the material is a magnetic permeability equal to or higher than that of the E-type iron core 29 and the I-type iron core 30. It is desirable that the frequency characteristics be equal to or higher than the above, but it is desirable to set the frequency characteristics in accordance with the reduction level of the harmonic current similarly to the width and thickness. The harmonic current characteristic of each order shown in FIG. 4 shows a case where a directional rigid silicon plate is used as the magnetic material 27.
【００１８】また、磁性材２７を２次ボビン２５に組込
むことにより、２次コイル２４の巻線スペースが小さく
なるが、図４に示す高調波電流特性を維持するためには
やむを得ず、この構成とすることが小型で経済的とな
る。Further, by incorporating the magnetic material 27 into the secondary bobbin 25, the winding space of the secondary coil 24 is reduced. However, in order to maintain the harmonic current characteristics shown in FIG. Doing so is small and economical.
【００１９】なお、日の字状の鉄心としては、Ｅ型鉄心
２９、Ｉ型鉄心３０を用いて構成するものについて説明
したが、ＥＥ型鉄心、ＴＣ型鉄心を用いて構成すること
もできる。Although the sun-shaped iron core has been described using the E-shaped iron core 29 and the I-shaped iron core 30, the iron-shaped iron core may be formed using an EE-shaped iron core or a TC-shaped iron core.
【００２０】（実施の形態２）次に本発明の実施の形態
２について図５を用いて説明する。図５は断面図であ
り、基本的には実施の形態１に示したものと同一である
が、異なる点は板状の磁性材２７として２次ボビン２５
の巻胴部に２次コイル２４の巻幅と同等以下の幅で薄い
板状の磁性材２７を１重巻きし、その上に絶縁テープ２
８を巻付け、２次コイル２４の巻線性をよくして作業性
を向上させたものである。(Embodiment 2) Next, Embodiment 2 of the present invention will be described with reference to FIG. FIG. 5 is a sectional view, which is basically the same as that shown in the first embodiment, except that the secondary bobbin 25 is used as the plate-like magnetic material 27.
A single thin magnetic plate 27 having a width equal to or less than the winding width of the secondary coil 24 is wound around the winding drum portion.
8, the winding property of the secondary coil 24 is improved to improve the workability.
【００２１】この構成においてより多くの高調波電流を
低減したい場合は、磁性材２７を多重にして調整するこ
とができる。In this configuration, if it is desired to reduce a higher harmonic current, the magnetic material 27 can be multiplexed and adjusted.
【００２２】また、一重あるいは多重に磁性材２７を巻
付けるに当って、磁性材２７がショートしてショート電
流が流れるのを防ぐため、絶縁テープ２８を磁性材２７
がオーバーラップする部分に施しておくことが必要とな
る。なお、磁性材２７が導電性のものでなければ絶縁テ
ープ２８は不要となる。When winding the magnetic material 27 in a single layer or multiple layers, the insulating tape 28 is fixed to the magnetic material 27 in order to prevent the magnetic material 27 from short-circuiting and short-circuit current from flowing.
Need to be applied to the overlapping part. If the magnetic material 27 is not conductive, the insulating tape 28 becomes unnecessary.
【００２３】この構成によれば、磁性材２７の巻付作業
も容易となり、２次コイル２４の巻線性も向上させるこ
とができ、しかも１次コイル２０の高調波電流を低減で
きることになる。According to this configuration, the winding operation of the magnetic material 27 is facilitated, the winding property of the secondary coil 24 can be improved, and the harmonic current of the primary coil 20 can be reduced.
【００２４】（実施の形態３）続いて本発明の実施の形
態３について図６、図７を用いて説明する。図６は２次
ボビン２５の斜視図であり、図７は２次コイル２４の断
面図を示している。Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a perspective view of the secondary bobbin 25, and FIG. 7 is a sectional view of the secondary coil 24.
【００２５】この実施の形態３は、２次ボビン２５の巻
胴部の両側に板状の磁性材２７を１枚または複数枚ずつ
配置し、２次コイル２４を巻回する際に磁性材２７の厚
みにより２次コイル２４の内側の中央部Ａにテンション
をかけることで２次コイル２４の振動による唸り音を低
減し、かつ、同時に１次コイル２０の高調波電流も低減
しようとするものである。In the third embodiment, one or a plurality of plate-like magnetic materials 27 are arranged on both sides of the winding body of the secondary bobbin 25, and the magnetic material 27 is wound when the secondary coil 24 is wound. By applying a tension to the central portion A inside the secondary coil 24 by the thickness of the secondary coil 24, it is possible to reduce the growling sound caused by the vibration of the secondary coil 24 and at the same time to reduce the harmonic current of the primary coil 20. is there.
【００２６】（実施の形態４）次に本発明の実施の形態
４について図８、図９を用いて説明する。図８は実施の
形態４のトランスの断面図、図９は同要部の分解斜視図
である。図８、図９において、板状の磁性材２７が１次
ボビン２１に巻回した１次コイル２０の外周に設けら
れ、この磁性材２７を外周に取付けた状態で２次コイル
２４を巻回した２次ボビン２５に嵌合し、日の字状の鉄
心の中央磁脚３１に装着する構成としたものである。(Embodiment 4) Next, Embodiment 4 of the present invention will be described with reference to FIGS. FIG. 8 is a cross-sectional view of a transformer according to the fourth embodiment, and FIG. 9 is an exploded perspective view of the main part. 8 and 9, a plate-shaped magnetic material 27 is provided around the primary coil 20 wound around the primary bobbin 21, and the secondary coil 24 is wound with the magnetic material 27 attached to the outer periphery. The secondary bobbin 25 is fitted to the center magnetic leg 31 of a sun-shaped iron core.
【００２７】この構成において、磁性材２７はコ字状と
して、１次コイル２０の両側から組込み、１次コイル２
０の外周部を覆うようにする。このとき、２次ボビン２
５は図９に示すように２分割された形状として磁性材２
７を組込んだ後同じ方向から磁性材２７の上に組込み、
その上に２次コイル２４を巻回する構成としてもよい。In this configuration, the magnetic material 27 is formed into a U-shape, and is incorporated from both sides of the primary coil 20 to form the primary coil 2.
0 to cover the outer periphery. At this time, the secondary bobbin 2
Numeral 5 denotes a magnetic material 2 having a shape divided into two as shown in FIG.
After assembling 7, assemble on the magnetic material 27 from the same direction,
The secondary coil 24 may be wound thereon.
【００２８】（実施の形態５）続いて本発明の実施の形
態５について図１０、図１１を用いて説明する。図１０
は実施の形態５のトランスの分解斜視図、図１１は同要
部の断面図である。(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS. FIG.
Is an exploded perspective view of the transformer according to the fifth embodiment, and FIG. 11 is a cross-sectional view of the main part.
【００２９】図１０、図１１において、３５は中鍔３６
を設けたコイルボビンであり、このコイルボビン３５に
は１次コイル２０と、２次コイル２４が巻回されてい
る。この中鍔３６の両側には溝３７が形成され、この溝
３７に板状の磁性材２７が組込まれている。そして、こ
のコイルボビン３５にはＥ型鉄心２９が組込まれ、この
Ｅ型鉄心２９の端面にＩ型鉄心３０を突合せて日の字状
の鉄心を構成している。In FIG. 10 and FIG.
, And the primary coil 20 and the secondary coil 24 are wound around the coil bobbin 35. Grooves 37 are formed on both sides of the middle flange 36, and the plate-like magnetic material 27 is incorporated in the grooves 37. An E-shaped iron core 29 is incorporated in the coil bobbin 35, and an I-shaped iron core 30 is abutted against an end face of the E-shaped iron core 29 to form a sun-shaped iron core.
【００３０】この構成とすることにより、磁性材２７は
１次コイル２０と２次コイル２４の間でしかも日の字状
の鉄心の中央磁脚３１と両外側磁脚３２の間に配置され
たことになる。With this configuration, the magnetic material 27 is arranged between the primary coil 20 and the secondary coil 24 and between the center magnetic leg 31 and the outer magnetic legs 32 of the iron core in the shape of a sun. Will be.
【００３１】このような構成により図１１に示すように
磁束が日の字状の鉄心に流れると磁性材２７を通してバ
イパスする磁束３４が流れてリーケージインダクタンス
が増加し、１次コイル２０の高調波電流を低減できるこ
とになる。With such a configuration, as shown in FIG. 11, when the magnetic flux flows through the iron core in the shape of a star, the magnetic flux 34 bypasses through the magnetic material 27 to increase the leakage inductance, and the harmonic current of the primary coil 20 Can be reduced.
【００３２】なお、図１０においては磁性材２７をＩ型
としたがＬ字形あるいはコ型とすることもできる。In FIG. 10, the magnetic material 27 is I-shaped, but may be L-shaped or U-shaped.
【００３３】[0033]
【発明の効果】以上のように本発明のトランスは構成さ
れるため、トランスのサイズを変えずにコンデンサの充
放電特性によるトランスの１次コイルの高調波電流を低
減でき、２次コイルで発生する唸り音の低減も図れ、特
性面、品質面で優れたものとすることができる。As described above, since the transformer of the present invention is constructed, the harmonic current of the primary coil of the transformer due to the charging and discharging characteristics of the capacitor can be reduced without changing the size of the transformer, and the secondary coil generates the current. It is also possible to reduce the humming sound, and to obtain excellent characteristics and quality.
【図１】本発明の実施の形態１のトランスを示す分解斜
視図FIG. 1 is an exploded perspective view showing a transformer according to a first embodiment of the present invention.
【図２】同トランスの２次ボビンの断面図FIG. 2 is a sectional view of a secondary bobbin of the transformer.
【図３】同トランスの動作を示す断面図FIG. 3 is a sectional view showing the operation of the transformer.
【図４】同トランスの１次コイルの高調波電流の特性図FIG. 4 is a characteristic diagram of a harmonic current of a primary coil of the transformer.
【図５】本発明の実施の形態２のトランスを示す断面図FIG. 5 is a sectional view showing a transformer according to a second embodiment of the present invention.
【図６】本発明の実施の形態３のトランスを示す２次ボ
ビンの斜視図FIG. 6 is a perspective view of a secondary bobbin showing a transformer according to a third embodiment of the present invention.
【図７】同２次コイルの断面図FIG. 7 is a sectional view of the secondary coil.
【図８】本発明の実施の形態４のトランスを示す断面図FIG. 8 is a sectional view showing a transformer according to a fourth embodiment of the present invention.
【図９】同トランスの要部の分解斜視図FIG. 9 is an exploded perspective view of a main part of the transformer.
【図１０】本発明の実施の形態５のトランスを示す分解
斜視図FIG. 10 is an exploded perspective view showing a transformer according to a fifth embodiment of the present invention.
【図１１】同要部の断面図FIG. 11 is a cross-sectional view of the main part.
【図１２】従来のトランスを示す分解斜視図FIG. 12 is an exploded perspective view showing a conventional transformer.
【図１３】同トランスの完成品を示す斜視図FIG. 13 is a perspective view showing a completed product of the transformer.
【図１４】同トランスの使用例を示す回路図FIG. 14 is a circuit diagram showing a usage example of the transformer.
【図１５】同トランスの１次コイルの高調波電流の特性
図FIG. 15 is a characteristic diagram of a harmonic current of a primary coil of the transformer.
【図１６】同トランスの２次コイルの断面図FIG. 16 is a sectional view of a secondary coil of the transformer.
２０ １次コイル ２１ １次ボビン ２４ ２次コイル ２５ ２次ボビン ２７ 磁性材 ２８ 絶縁テープ ２９ Ｅ型鉄心 ３０ Ｉ型鉄心 ３１ 中央磁脚 ３２ 外側磁脚 ３５ コイルボビン ３６ 中鍔 ３７ 溝 DESCRIPTION OF SYMBOLS 20 Primary coil 21 Primary bobbin 24 Secondary coil 25 Secondary bobbin 27 Magnetic material 28 Insulating tape 29 E type iron core 30 I type iron core 31 Center magnetic leg 32 Outer magnetic leg 35 Coil bobbin 36 Middle collar 37 Groove
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 27/36 H01F 27/33 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01F 27/36 H01F 27/33
Claims (5)
磁脚を備えた日の字状の鉄心から構成され、上記１次コ
イルと２次コイルとの間でかつ日の字状の鉄心の中央磁
脚と外側磁脚の間に１次コイルの高調波電流を低減させ
る板状の磁性材を配置したトランス。1. A sun-shaped iron core having a center magnetic leg on which a primary coil and a secondary coil are mounted, between the primary coil and the secondary coil and in a sun-shaped iron core. A transformer in which a plate-shaped magnetic material for reducing a harmonic current of a primary coil is arranged between a center magnetic leg and an outer magnetic leg.
の字状の鉄心の中央磁脚に装着され、この１次コイルと
２次コイル間に１重または多重に巻回した板状の磁性材
を配置した請求項１に記載のトランス。2. A primary and secondary coil having a laminated structure mounted on a central magnetic leg of a sun-shaped iron core, and a single or multiple winding plate between the primary and secondary coils. 2. The transformer according to claim 1, wherein said magnetic material is disposed.
次コイルを巻回した２次ボビンを嵌合して日の字状の鉄
心の中央磁脚に装着し、上記２次ボビンの巻胴部の両側
に１枚または複数枚の板状の磁性材を取付けた請求項１
に記載のトランス。3. A primary bobbin on which a primary coil is wound;
A secondary bobbin around which a secondary coil is wound is fitted and attached to the center magnetic leg of a sun-shaped iron core, and one or more plate-like magnetic materials are provided on both sides of the winding body of the secondary bobbin. Claim 1.
Transformer.
に両側からコ字状で板状の磁性材を組込んだ請求項１に
記載のトランス。4. The transformer according to claim 1, wherein a U-shaped plate-shaped magnetic material is incorporated on both sides of the primary coil wound around the primary bobbin.
と２次コイルを分割して巻回したものを日の字状の鉄心
の中央磁脚に装着し、上記中鍔の日の字状の鉄心の中央
磁脚と外側磁脚の間に位置するように設けた溝に板状の
磁性材を配置した請求項１に記載のトランス。5. A coil bobbin having a middle flange, in which a primary coil and a secondary coil are divided and wound, is attached to a center magnetic leg of a sun-shaped iron core, and the sun-shaped middle bobbin is formed. 2. The transformer according to claim 1, wherein a plate-shaped magnetic material is disposed in a groove provided between the center magnetic leg and the outer magnetic leg of the iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32092797A JP3164043B2 (en) | 1997-11-21 | 1997-11-21 | Trance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32092797A JP3164043B2 (en) | 1997-11-21 | 1997-11-21 | Trance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11154616A JPH11154616A (en) | 1999-06-08 |
| JP3164043B2 true JP3164043B2 (en) | 2001-05-08 |
Family
ID=18126844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32092797A Expired - Fee Related JP3164043B2 (en) | 1997-11-21 | 1997-11-21 | Trance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3164043B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100647227B1 (en) | 2005-08-17 | 2006-11-23 | 주식회사 모빌일렉트론 | Duality small trans |
| CN106601444A (en) * | 2016-12-13 | 2017-04-26 | 海宁联丰东进电子有限公司 | Flat-type transformer |
-
1997
- 1997-11-21 JP JP32092797A patent/JP3164043B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11154616A (en) | 1999-06-08 |
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