JPH10233325A - Inverter transformer and its manufacture - Google Patents
Inverter transformer and its manufactureInfo
- Publication number
- JPH10233325A JPH10233325A JP9037704A JP3770497A JPH10233325A JP H10233325 A JPH10233325 A JP H10233325A JP 9037704 A JP9037704 A JP 9037704A JP 3770497 A JP3770497 A JP 3770497A JP H10233325 A JPH10233325 A JP H10233325A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- magnetic path
- inverter transformer
- secondary winding
- wound
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は各種の照明機器等
に用いることのできるインバータトランス及びその製造
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverter transformer which can be used for various lighting devices and the like, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来、照明機器等にはインバータトラン
スが使用されている。ところで、照明機器等に用いられ
ている放電灯の定格や電源回路の各種定数は、様々であ
り、これら定格や定数が変わる毎にインバータトランス
の１次側巻線と２次側巻線の結合係数が異なったものが
必要である。2. Description of the Related Art Conventionally, an inverter transformer has been used for lighting equipment and the like. By the way, the rating of the discharge lamp used in lighting equipment and various constants of the power supply circuit are various, and each time these ratings and constants change, the coupling between the primary winding and the secondary winding of the inverter transformer is changed. Different coefficients are required.
【０００３】そこで、従来においては、放電灯の定格や
電源回路の各種定数に合わせてギャップ幅の異なるコア
（鉄心）を用意して対応している。Therefore, conventionally, a core (iron core) having a different gap width is prepared according to the rating of the discharge lamp and various constants of the power supply circuit.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
ようにギャップ幅の異なるコアを用意する場合には、多
種多様な定格の放電灯や各種定数が異なる様々な電源回
路に対して、膨大な種類のコアを必要とし、部品点数が
多くなり、コスト高を招来するという問題が発生してい
た。However, when cores having different gap widths are prepared as described above, a huge number of types of discharge lamps having various ratings and various power supply circuits having various constants are required. However, there is a problem that the number of parts is increased and the cost is increased.
【０００５】本発明は上記の問題点を解決せんとしてな
されたものであり、その目的は、多数の部品を用意する
ことなく、１次側巻線と２次側巻線との結合係数を容易
に異ならせることが可能なインバータトランス及びその
製造方法を提供することである。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to make it easy to increase the coupling coefficient between the primary winding and the secondary winding without preparing many parts. And a method of manufacturing the same.
【０００６】[0006]
【課題を解決するための手段】本発明の請求項１に係る
インバータトランスは、１次側巻線および２次側巻線の
一部が巻回された第１の巻回部分を含む第１の磁路と、
前記２次側巻線の残り部分のみが巻回された第２の巻回
部分を含む第２の磁路とを備えることを特徴とする。こ
れによって、第１の巻回部分と第２の巻回部分とにおけ
る２次側巻線の巻線比を所望にして、結合係数を容易に
変更可能である。According to a first aspect of the present invention, there is provided an inverter transformer including a first winding portion in which a part of a primary winding and a part of a secondary winding are wound. And the magnetic path of
A second magnetic path including a second winding portion in which only the remaining portion of the secondary winding is wound. This makes it possible to easily change the coupling coefficient by making the winding ratio of the secondary winding between the first winding portion and the second winding portion desired.
【０００７】本発明の請求項２に係るインバータトラン
スでは、第１の巻回部分及び第２の巻回部分はＩ型コア
に対して設けられていることを特徴とする。これによ
り、Ｉ型コアに対して第１の巻回部分及び第２の巻回部
分の巻回を行えば良く、インバータトランスの生産が容
易になる。In the inverter transformer according to a second aspect of the present invention, the first winding portion and the second winding portion are provided for the I-shaped core. Thus, the first winding portion and the second winding portion may be wound on the I-shaped core, and the production of the inverter transformer is facilitated.
【０００８】本発明の請求項３に係るインバータトラン
スでは、第１の磁路は、Ｉ型コアの一部とコの字型コア
とにより閉磁路とされていることを特徴とする。これに
より、閉磁路である第１の磁路に対し必要な磁束が生じ
る。In the inverter transformer according to a third aspect of the present invention, the first magnetic path is a closed magnetic path formed by a part of the I-shaped core and a U-shaped core. Thereby, a magnetic flux required for the first magnetic path, which is a closed magnetic path, is generated.
【０００９】本発明の請求項４に係るインバータトラン
スでは、Ｅ型コアとＩ型コアにより磁路が形成され、第
１の磁路は、Ｅ型コアとＩ型コアとにより形成される一
方の閉磁路とされており、第２の磁路は、Ｅ型コアとＩ
型コアとにより形成される他方の閉磁路とされているこ
とを特徴とする。これにより、閉磁路である第１及び第
２の磁路に対し必要な磁束が生じる。In the inverter transformer according to a fourth aspect of the present invention, a magnetic path is formed by the E-type core and the I-type core, and the first magnetic path is formed by one of the E-type core and the I-type core. The second magnetic path includes an E-shaped core and an I-type core.
The other closed magnetic path formed by the mold core. As a result, necessary magnetic flux is generated in the first and second magnetic paths that are closed magnetic paths.
【００１０】本発明の請求項５に係るインバータトラン
スでは、２つのコア間のギャップを調整可能なスペーサ
が配されていることを特徴とする。これにより、スペー
サの厚みを調整して容易に結合係数を変更可能である。The inverter transformer according to claim 5 of the present invention is characterized in that a spacer capable of adjusting a gap between two cores is provided. Thereby, the coupling coefficient can be easily changed by adjusting the thickness of the spacer.
【００１１】本発明の請求項６に係るインバータトラン
スの製造方法は、１次側巻線および２次側巻線の一部を
巻回して第１の巻回部分を含む第１の磁路を構成し、前
記２次側巻線の残り部分のみを巻回して第２の巻回部分
を含む第２の磁路を構成することを特徴とする。これに
より、第１の巻回部分と第２の巻回部分とにおける２次
側巻線の巻線比を所望にして、結合係数を容易に変更可
能である。According to a method of manufacturing an inverter transformer according to a sixth aspect of the present invention, a first magnetic path including a first winding portion is formed by winding a part of a primary winding and a part of a secondary winding. And a second magnetic path including a second winding portion by winding only the remaining portion of the secondary winding. This makes it possible to easily change the coupling coefficient by making the winding ratio of the secondary winding between the first winding portion and the second winding portion desired.
【００１２】本発明の請求項７に係るインバータトラン
スの製造方法は、第１の巻回部分に巻回される２次側巻
線の巻数と、第２の巻回部分に巻回される２次側巻線の
巻数との比を変更して、１次側巻線と２次側巻線の結合
係数を調整する工程を含むことを特徴とする。これによ
り、結合係数が異なるインバータトランスを容易に得る
ことができる。According to a seventh aspect of the present invention, in the method of manufacturing an inverter transformer, the number of turns of the secondary winding wound around the first winding portion and the number of turns wound around the second winding portion are increased. The method is characterized by including a step of changing the ratio of the number of turns of the secondary winding to adjusting the coupling coefficient between the primary winding and the secondary winding. Thus, inverter transformers having different coupling coefficients can be easily obtained.
【００１３】[0013]
【発明の実施の形態】以下添付図面を参照して本発明の
実施の形態に係るインバータトランス及びその製造方法
を説明する。各図において同一の構成要素には同一の符
号を付し重複する説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An inverter transformer and a method for manufacturing the same according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In the respective drawings, the same components are denoted by the same reference numerals, and redundant description will be omitted.
【００１４】図１、図２には、第１の実施の形態に係る
インバータトランスが示されている。このインバータト
ランスは、コイルボビン１の中空部にＩ型コア（鉄心）
２が挿入され、Ｉ型コア２に対してＥ型コア３が組み合
わされて、第１の磁路４と第２の磁路５とが形成され
る。FIGS. 1 and 2 show an inverter transformer according to a first embodiment. This inverter transformer has an I-shaped core (iron core) in the hollow portion of the coil bobbin 1.
2 are inserted, and the E-shaped core 3 is combined with the I-shaped core 2 to form the first magnetic path 4 and the second magnetic path 5.
【００１５】コイルボビン１には、フランジ６Ａ〜６Ｆ
が形成されており、フランジ６Ｃとフランジ６Ｄとの間
には、Ｅ型コア３の中央脚部の先端が挿入される穴が設
けられている。Ｅ型コア３がＩ型コア２に臨む脚部と、
Ｉ型コア２の側部との間には、ギャップ調整用のスペー
サ７（７Ａ〜７Ｂ）が配置され、これらスペーサ７の厚
みを所望にすることにより、１次側巻線と２次側巻線と
の結合係数を調整可能となっている。The coil bobbin 1 has flanges 6A to 6F.
Is formed, and a hole is provided between the flange 6C and the flange 6D, into which the tip of the central leg of the E-shaped core 3 is inserted. A leg in which the E-shaped core 3 faces the I-shaped core 2,
Spacers 7 (7A to 7B) for gap adjustment are arranged between the side of the I-shaped core 2 and the primary winding and the secondary winding are formed by making the thickness of these spacers 7 desired. The coupling coefficient with the line can be adjusted.
【００１６】コイルボビン１のフランジ６Ａとフランジ
６Ｂとの間、フランジ６Ｂとフランジ６Ｃとの間、フラ
ンジ６Ｄとフランジ６Ｅとの間には、それぞれ２次側巻
線８（８Ａ〜８Ｃ）が分割されて巻回され、フランジ６
Ｅとフランジ６Ｆとの間には、１次側巻線９が巻回され
ている。コイルボビン１の両端には、１次側巻線９につ
ながる端子１０及び２次側巻線８につながる端子１１が
設けられている。Secondary windings 8 (8A to 8C) are divided between the flanges 6A and 6B of the coil bobbin 1, between the flanges 6B and 6C, and between the flanges 6D and 6E. Rolled, flange 6
A primary winding 9 is wound between E and the flange 6F. At both ends of the coil bobbin 1, a terminal 10 connected to the primary winding 9 and a terminal 11 connected to the secondary winding 8 are provided.
【００１７】従って、本発明に係るインバータトランス
は、１次側巻線９および２次側巻線８の一部（８Ｃ）が
巻回された第１の巻回部分１２を含む第１の磁路４と、
２次側巻線８の残り部分（８Ａ、８Ｂ）のみが巻回され
た第２の巻回部分１３を含む第２の磁路５とを備える。
そして、このインバータトランスでは、スペーサ７及び
２次側巻線８の一部（８Ｃ）の巻回数と２次側巻線８の
残り部分（８Ａ、８Ｂ）の巻線数との比等により、漏れ
リアクタンスが大きく設計され、漏れトランス（leakag
e trans)を構成している。Accordingly, the inverter transformer according to the present invention has a first magnetic field including the first winding portion 12 on which the primary winding 9 and a part (8C) of the secondary winding 8 are wound. Road 4,
A second magnetic path 5 including a second winding portion 13 in which only the remaining portions (8A, 8B) of the secondary winding 8 are wound.
In this inverter transformer, the ratio between the number of turns of a part (8C) of the spacer 7 and the secondary winding 8 and the number of turns of the remaining part (8A, 8B) of the secondary winding 8 is determined by: The leakage reactance is designed to be large, and the leakage transformer (leakag
e trans).
【００１８】以上の構成のインバータトランスは、コイ
ルボビン１の各フランジ６間に１次巻線９または２次巻
線８Ａ〜８Ｃを所望回数ずつ巻回し、Ｉ型コア２をコイ
ルボビン２に挿入し、Ｅ型コア３をスペーサ７を介して
結合することにより作成される。この場合、コイルボビ
ン１はＩ型コア２に対して設けられた棒状であるので、
巻回作業が容易である。In the inverter transformer having the above configuration, the primary winding 9 or the secondary windings 8A to 8C are wound between the flanges 6 of the coil bobbin 1 by a desired number of times, and the I-shaped core 2 is inserted into the coil bobbin 2. It is formed by bonding the E-shaped core 3 through the spacer 7. In this case, since the coil bobbin 1 has a rod shape provided for the I-shaped core 2,
Winding work is easy.
【００１９】次に図３に示すように、上記構成のインバ
ータトランス２０を用いて、放電灯２２を点灯する場合
の動作を説明する。インバータ電源回路２１からスイッ
チＳＷを介してインバータトランス２０の１次側巻線９
に到る端子１０ａ、１０ｂに所要電圧が印加される。ス
イッチＳＷが閉じられた当初においては、放電灯２２は
点灯しておらず、負荷抵抗は事実上無限大と考えられ
る。Next, as shown in FIG. 3, the operation when the discharge lamp 22 is turned on using the inverter transformer 20 having the above configuration will be described. The primary winding 9 of the inverter transformer 20 from the inverter power supply circuit 21 via the switch SW
The required voltage is applied to the terminals 10a and 10b reaching. At the beginning when the switch SW is closed, the discharge lamp 22 is not turned on, and the load resistance is considered to be virtually infinite.
【００２０】一方、周知のように、漏れトランスにおい
ては、漏れリアクタンスが大きいことから、負荷に流れ
込む電流は負荷の大きさと無関係に一定である。つま
り、漏れトランスとして設計されたインバータトランス
２０においては、図３の電流ｉが一定である。On the other hand, as is well known, in a leakage transformer, since the leakage reactance is large, the current flowing into the load is constant regardless of the size of the load. That is, in the inverter transformer 20 designed as a leakage transformer, the current i in FIG. 3 is constant.
【００２１】すると、スイッチＳＷが閉じられた当初に
おいては、上記のように負荷抵抗は事実上無限大であ
り、電流ｉとの積である電圧は極めて大きくなる。斯し
て、放電灯２２には極めて大きな電圧が印加され、適切
な点灯開始をさせることができる。Then, at the beginning when the switch SW is closed, the load resistance is practically infinite as described above, and the voltage which is a product of the current i becomes extremely large. Thus, an extremely large voltage is applied to the discharge lamp 22, and an appropriate lighting start can be performed.
【００２２】次に、放電灯２２が点灯状態となると、そ
の負荷抵抗は低下する。このとき、電流ｉが一定である
から、放電灯２２には適度な電圧を印加することがで
き、適切な点灯状態を継続させることができる。Next, when the discharge lamp 22 is turned on, its load resistance decreases. At this time, since the current i is constant, an appropriate voltage can be applied to the discharge lamp 22, and an appropriate lighting state can be continued.
【００２３】ここで、２次側巻線８の一部（８Ｃ）を１
次側巻線が巻回された第１の巻回部分１２に巻回したた
めに、放電灯２２が点灯状態となったとき、つまり、定
常状態では、１次側巻線９との結合度が密である上記２
次側巻線８の一部（８Ｃ）によって生じる電圧が大き
く、これが放電灯２２に対する印加電圧となるものと考
えられる。Here, a part (8C) of the secondary winding 8 is
When the discharge lamp 22 is turned on because the secondary winding is wound around the first wound portion 12 where the secondary winding is wound, that is, in a steady state, the degree of coupling with the primary winding 9 is reduced. 2 above which is dense
It is considered that the voltage generated by a part (8C) of the secondary winding 8 is large, and this is the voltage applied to the discharge lamp 22.
【００２４】上記に対し、放電灯２２が点灯されると
き、つまり、過渡状態では、１次側巻線９との結合度が
密である上記２次側巻線８の一部（８Ｃ）ばかりでな
く、１次側巻線９との結合度が粗である上記２次側巻線
８の残りの部分（８Ａ、８Ｂ）でも、大きな電圧を生
じ、放電灯２２の始動に寄与する。On the other hand, when the discharge lamp 22 is turned on, that is, in a transient state, only a part (8C) of the secondary winding 8 having a high degree of coupling with the primary winding 9 is dense. Instead, a large voltage is generated also in the remaining portions (8A, 8B) of the secondary winding 8 having a low degree of coupling with the primary winding 9, which contributes to starting of the discharge lamp 22.
【００２５】次に、図４、図５を参照して第２の実施の
形態に係るインバータトランスを説明する。このインバ
ータトランスは、コイルボビン３１の中空部にＩ型コア
３２が挿入されており、このＩ型コア３２の左半分に対
してはコの字型コア３３が組み合わされて、コの字型コ
ア３３とＩ型コア３２の一部を通るループ状の第１の磁
路３４と、Ｉ型コア３２を通り外部へ抜けてループ状と
なる第２の磁路とが形成される。Next, an inverter transformer according to a second embodiment will be described with reference to FIGS. In this inverter transformer, an I-shaped core 32 is inserted into a hollow portion of a coil bobbin 31, and a U-shaped core 33 is combined with a left half of the I-shaped core 32 to form a U-shaped core 33. And a first magnetic path 34 having a loop shape passing through a part of the I-type core 32 and a second magnetic path having a loop shape passing through the I-type core 32 to the outside.
【００２６】コイルボビン３１には、大型のフランジ３
６Ａ〜３６Ｃと小型のフランジ３７Ａ〜３７Ｃが形成さ
れており、フランジ３６Ｃとフランジ３７Ａとの間に
は、コの字型コア３３の一端側脚部の先端が挿入される
穴が設けられている。コの字型コア３３がＩ型コア３２
に臨む脚部と、Ｉ型コア３２の側部との間には、ギャッ
プ調整用のスペーサ３８（３８Ａ〜３８Ｂ）が配置さ
れ、これらスペーサ３８の厚みを所望にすることによ
り、１次側巻線と２次側巻線との結合係数を調整可能と
なっている。The coil bobbin 31 has a large flange 3
6A to 36C and small flanges 37A to 37C are formed, and a hole is provided between the flange 36C and the flange 37A, into which the tip of one end side leg of the U-shaped core 33 is inserted. . The U-shaped core 33 is the I-shaped core 32
Spacers 38 (38A-38B) for adjusting the gap are arranged between the legs facing the I-shaped core 32 and the side of the I-shaped core 32. By making the thickness of these spacers 38 desired, the primary side winding is formed. The coupling coefficient between the wire and the secondary winding can be adjusted.
【００２７】コイルボビン３１のフランジ３６Ａとフラ
ンジ３６Ｂとの間、フランジ３６Ｂとフランジ３６Ｃと
の間、フランジ３７Ａとフランジ３７Ｂとの間には、そ
れぞれ２次側巻線３９（３９Ａ〜３９Ｃ）が分割されて
巻回され、フランジ３７Ｂとフランジ３７Ｃとの間に
は、１次側巻線４０が巻回されている。コイルボビン３
１の両端には、１次側巻線４０につながる端子４１及び
２次側巻線３９につながる端子４２が設けられている。Secondary windings 39 (39A to 39C) are divided between the flanges 36A and 36B of the coil bobbin 31, between the flanges 36B and 36C, and between the flanges 37A and 37B. The primary winding 40 is wound between the flange 37B and the flange 37C. Coil bobbin 3
A terminal 41 connected to the primary winding 40 and a terminal 42 connected to the secondary winding 39 are provided at both ends of 1.
【００２８】従って、本実施例に係るインバータトラン
スは、１次側巻線４０および２次側巻線３９の一部（３
９Ｃ）が巻回された第１の巻回部分５２を含む第１の磁
路３４と、２次側巻線３９の残り部分（３９Ａ、３９
Ｂ）のみが巻回された第２の巻回部分５３を含む第２の
磁路３５とを備える。そして、この第２の実施の形態に
係るインバータトランスでは、スペーサ３８及び２次側
巻線３９の一部 (３９Ｃ) の巻回数と２次側巻線３９の
残り部分（３９Ａ、３９Ｂ）の巻線数との比等により、
漏れリアクタンスが大きく設計され、漏れ卜ランス(Iea
kagetrans)を構成している。Therefore, in the inverter transformer according to the present embodiment, the primary winding 40 and a part of the secondary winding 39 (3
9C), the first magnetic path 34 including the first winding portion 52 wound thereon, and the remaining portions (39A, 39) of the secondary winding 39.
B) and a second magnetic path 35 including a second winding portion 53 wound only. In the inverter transformer according to the second embodiment, the number of turns of a part (39C) of the spacer 38 and the secondary winding 39 and the windings of the remaining parts (39A, 39B) of the secondary winding 39. Depending on the ratio to the number of lines,
The leakage reactance is designed to be large, and the leakage lance (Iea
kagetrans).
【００２９】この第２の実施の形態に係るインバータト
ランスにあっても、コイルボビン３１の各フランジ３
６、３７間に１次巻線４０または２次巻線３９Ａ〜３９
Ｃを所望回数ずつ巻回し、Ｉ型コア３２をコイルボビン
３１に挿入し、コの字型コア３３をスペーサ３８を介し
て結合することにより作成される。この場合、コイルボ
ビン３１はＩ型コア３２に対して設けられた棒状である
ので、巻回作業が容易である。Even in the inverter transformer according to the second embodiment, each flange 3 of the coil bobbin 31
The primary winding 40 or the secondary windings 39 </ b> A to 39 between 6 and 37.
C is wound by a desired number of times, the I-shaped core 32 is inserted into the coil bobbin 31, and the U-shaped core 33 is connected via the spacer 38. In this case, since the coil bobbin 31 is in the shape of a bar provided to the I-shaped core 32, the winding operation is easy.
【００３０】上記第２の実施の形態に係るインバータト
ランスを用いて、放電灯を点灯する場合の動作は、既に
図３において説明したものと同様である。即ち、このイ
ンバータトランスでは放電灯（負荷）に流れる電流が一
定であるから、放電灯が点灯する際には、負荷である放
電灯には点灯時に必要な大きな電圧が印加されて、的確
に点灯がなされ、一方、点灯状態にあっては、抵抗が低
下した放電灯に対して点灯時より小さい適切な電圧が印
加されることになる。The operation when the discharge lamp is turned on using the inverter transformer according to the second embodiment is the same as that already described in FIG. In other words, in this inverter transformer, the current flowing through the discharge lamp (load) is constant, so that when the discharge lamp is lit, a large voltage required at the time of lighting is applied to the discharge lamp, which is a load, and the lamp is accurately lit. On the other hand, in the lighting state, an appropriate voltage lower than the lighting time is applied to the discharge lamp having reduced resistance.
【００３１】以上、２つの実施の形態によって示したよ
うに、２次側巻線の一部を１次側巻線の巻回部分（第１
の巻回部分）に巻回し、２次側巻線の残りの部分を独自
に巻回したことにより、第１の巻回部分では、１次側巻
線と２次側巻線との結合度が密となり、第２の巻回部分
では、１次側巻線と２次側巻線との結合度が粗となり、
全体的には、第１の巻回部分と第２の巻回部分とに２次
側巻線をどれだけ巻回するかにより、結合係数を変更で
きる。つまり、Ｉ型コア（コイルボビン）に対して２次
側巻線をどのように巻回するかによって所望の結合係数
を持ったインバータトランスを作成することができ、従
来のように異なる寸法のコアを用意することなく、きわ
めて効率よく経済的である。As shown in the two embodiments, a part of the secondary winding is replaced with a winding part of the primary winding (first winding).
) And the remaining part of the secondary winding is independently wound, so that the degree of coupling between the primary winding and the secondary winding in the first winding part And the degree of coupling between the primary winding and the secondary winding becomes coarse in the second winding portion,
As a whole, the coupling coefficient can be changed depending on how many secondary windings are wound around the first winding portion and the second winding portion. That is, it is possible to create an inverter transformer having a desired coupling coefficient depending on how the secondary winding is wound around the I-type core (coil bobbin). It is very efficient and economical without any preparation.
【００３２】[0032]
【発明の効果】以上説明したように請求項１に記載のイ
ンバータトランスによれば、１次側巻線および２次側巻
線の一部を巻回して第１の巻回部分を構成し、前記２次
側巻線の残り部分のみを巻回して第２の巻回部分を構成
したので、第１の巻回部分と第２の巻回部分とにおける
２次側巻線の巻線比を所望にして、結合係数を容易に変
更可能であり、ギャッブ幅の異なる複数種のコアを用意
する必要がなく、効率的・経済的である。As described above, according to the inverter transformer of the first aspect, a part of the primary winding and a part of the secondary winding are wound to form a first winding part, Since only the remaining part of the secondary winding is wound to form the second winding part, the winding ratio of the secondary winding in the first winding part and the second winding part is determined. If desired, the coupling coefficient can be easily changed, and there is no need to prepare a plurality of types of cores having different gapped widths, which is efficient and economical.
【００３３】以上説明したように請求項２に記載のイン
バータトランスによれば、第１の巻回部分及び第２の巻
回部分はＩ型コアに対して設けられているので、Ｉ型コ
アに対して第１の巻回部分及び第２の巻回部分の巻回を
行えば良く、インバータトランスの生産が容易になる。As described above, according to the inverter transformer of the second aspect, the first winding portion and the second winding portion are provided for the I-type core, so that the I-type core has On the other hand, the winding of the first winding portion and the second winding portion may be performed, which facilitates the production of the inverter transformer.
【００３４】以上説明したように請求項３に記載のイン
バータトランスによれば、第１の磁路は、Ｉ型コアの一
部とコの字型コアとにより閉磁路とされているので、閉
磁路である第１の磁路に対し必要な磁束が生じる。As described above, according to the inverter transformer of the third aspect, the first magnetic path is a closed magnetic path formed by a part of the I-shaped core and the U-shaped core. A necessary magnetic flux is generated in the first magnetic path, which is a path.
【００３５】以上説明したように請求項４に記載のイン
バータトランスによれば、Ｅ型コアとＩ型コアにより磁
路が形成され、第１の磁路は、Ｅ型コアとＩ型コアとに
より形成される一方の閉磁路とされており、第２の磁路
は、Ｅ型コアとＩ型コアとにより形成される他方の閉磁
路とされているので、閉磁路である第１及び第２の磁路
に対し必要な磁束が生じる。As described above, according to the inverter transformer of the fourth aspect, a magnetic path is formed by the E-type core and the I-type core, and the first magnetic path is formed by the E-type core and the I-type core. The first and second magnetic paths are closed magnetic paths, and the second magnetic path is the other closed magnetic path formed by the E-type core and the I-type core. The required magnetic flux is generated for the magnetic path of the magnetic field.
【００３６】以上説明したように請求項５に記載のイン
バータトランスによれば、２つのコア間のギャップを調
整可能なスペーサが配されているので、スペーサの厚み
を調整して容易に結合係数を変更可能である。As described above, according to the inverter transformer of the fifth aspect, since the spacer capable of adjusting the gap between the two cores is provided, the coupling coefficient can be easily adjusted by adjusting the thickness of the spacer. Can be changed.
【００３７】以上説明したように請求項６に記載のイン
バータトランスの製造方法によれば、１次側巻線および
２次側巻線の一部を巻回して第１の巻回部分を含む第１
の磁路を構成し、前記２次側巻線の残り部分のみを巻回
して第２の巻回部分を含む第２の磁路を構成するので、
第１の巻回部分と第２の巻回部分とにおける２次側巻線
の巻線比を所望にして、結合係数を容易に変更可能であ
り、ギャップ幅の異なる複数種のコアを用意する必要が
なく、効率的・経済的である。As described above, according to the method of manufacturing the inverter transformer of the sixth aspect, the first winding and the secondary winding are partially wound to include the first winding portion. 1
And a second magnetic path including a second winding portion is formed by winding only the remaining portion of the secondary winding.
A desired winding ratio of the secondary winding between the first winding part and the second winding part is provided, and a coupling coefficient can be easily changed, and a plurality of types of cores having different gap widths are prepared. No need, efficient and economical.
【００３８】以上説明したように請求項７に記載のイン
バータトランスの製造方法によれば、第１の巻回部分に
巻回される２次側巻線の巻数と、第２の巻回部分に巻回
される２次側巻線の巻数との比を変更して、１次側巻線
と２次側巻線の結合係数を調整する工程を含むので、１
次側巻線と２次側巻線の結合係数が異なるインバータト
ランスを容易に得ることができる。As described above, according to the method of manufacturing the inverter transformer according to the seventh aspect, the number of turns of the secondary winding wound around the first winding portion and the number of turns of the second winding portion are increased. Since the method includes a step of adjusting the coupling coefficient between the primary winding and the secondary winding by changing the ratio of the number of turns of the secondary winding to be wound,
An inverter transformer having a different coupling coefficient between the secondary winding and the secondary winding can be easily obtained.
【図１】本発明の第１の実施の形態に係るインバータト
ランスの構成図。FIG. 1 is a configuration diagram of an inverter transformer according to a first embodiment of the present invention.
【図２】本発明の第１の実施の形態に係るインバータト
ランスの概略構成図。FIG. 2 is a schematic configuration diagram of an inverter transformer according to the first embodiment of the present invention.
【図３】本発明の第１の実施の形態に係るインバータト
ランスを適用した放電灯点灯回路の回路図。FIG. 3 is a circuit diagram of a discharge lamp lighting circuit to which the inverter transformer according to the first embodiment of the present invention is applied.
【図４】本発明の第２の実施の形態に係るインバータト
ランスの構成図。FIG. 4 is a configuration diagram of an inverter transformer according to a second embodiment of the present invention.
【図５】本発明の第２の実施の形態に係るインバータト
ランスの概略構成図。FIG. 5 is a schematic configuration diagram of an inverter transformer according to a second embodiment of the present invention.
１、３１ コイルボビン ２、３２ Ｉ型コ
ア ３ Ｅ型コア ４、３４ 第１の
磁路 ５、３５ 第２の磁路 ６Ａ〜６Ｆ フラ
ンジ ７Ａ〜７Ｃ、３８Ａ、３８Ｂ スペーサ ８、８Ａ〜８Ｃ、３９、３９Ａ〜３９Ｃ ２次側巻線 ９、４０ １次側巻線 １２、５２ 第１の巻回部分 １３、５３ 第２の巻回部分1, 31 Coil bobbin 2, 32 I-type core 3 E-type core 4, 34 First magnetic path 5, 35 Second magnetic path 6A to 6F Flange 7A to 7C, 38A, 38B Spacer 8, 8A to 8C, 39, 39A to 39C Secondary winding 9, 40 Primary winding 12, 52 First winding part 13, 53 Second winding part
フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｈ０１Ｆ 31/00 Ａ Continued on the front page (51) Int.Cl. 6 Identification code FI H01F 31/00 A
Claims (7)
回された第１の巻回部分を含む第１の磁路と、 前記２次側巻線の残り部分のみが巻回された第２の巻回
部分を含む第２の磁路と、 を備えることを特徴とするインバータトランス。1. A first magnetic path including a first winding portion on which a part of a primary winding and a part of a secondary winding are wound, and only a remaining portion of the secondary winding is And a second magnetic path including a wound second winding part.
型コアに対して設けられていることを特徴とする請求項
１に記載のインバータトランス。2. The first winding part and the second winding part have I
The inverter transformer according to claim 1, wherein the inverter transformer is provided for the mold core.
型コアとにより閉磁路とされていることを特徴とする請
求項Ｉに記載のインバータトランス。3. The inverter transformer according to claim 1, wherein the first magnetic path is a closed magnetic path formed by a part of the I-shaped core and a U-shaped core.
れ、 第１の磁路は、Ｅ型コアとＩ型コアとにより形成される
一方の閉磁路とされており、 第２の磁路は、Ｅ型コアとＩ型コアとにより形成される
他方の閉磁路とされていることを特徴とする請求項１に
記載のインバータトランス。4. A magnetic path is formed by the E-type core and the I-type core, and the first magnetic path is one closed magnetic path formed by the E-type core and the I-type core. The inverter transformer according to claim 1, wherein the magnetic path is the other closed magnetic path formed by the E-shaped core and the I-shaped core.
ペーサが配されていることを特徴とする請求項３または
請求項４に記載のインバータトランス。5. The inverter transformer according to claim 3, wherein a spacer capable of adjusting a gap between the two cores is provided.
回して第１の巻回部分を含む第１の磁路を構成し、 前記２次側巻線の残り部分のみを巻回して第２の巻回部
分を含む第２の磁路を構成することからなるインバータ
トランスの製造方法。6. A first magnetic path including a first winding part by winding a part of a primary winding and a part of a secondary winding, and only a remaining part of the secondary winding is formed. To form a second magnetic path including a second winding portion.
の巻数と、第２の巻回部分に巻回される２次側巻線の巻
数との比を変更して、１次側巻線と２次側巻線の結合係
数を調整する工程を含むことを特徴とする請求項６に記
載のインバータトランスの製造方法。7. The ratio of the number of turns of the secondary winding wound around the first winding portion to the number of turns of the secondary winding wound around the second winding portion is changed. 7. The method according to claim 6, further comprising the step of adjusting a coupling coefficient between the primary winding and the secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03770497A JP3386972B2 (en) | 1997-02-21 | 1997-02-21 | Inverter transformer and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03770497A JP3386972B2 (en) | 1997-02-21 | 1997-02-21 | Inverter transformer and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10233325A true JPH10233325A (en) | 1998-09-02 |
| JP3386972B2 JP3386972B2 (en) | 2003-03-17 |
Family
ID=12504925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03770497A Expired - Fee Related JP3386972B2 (en) | 1997-02-21 | 1997-02-21 | Inverter transformer and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3386972B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201463B1 (en) * | 1998-10-13 | 2001-03-13 | Toko, Inc. | Inverter transformer |
| JP2002246233A (en) * | 2001-02-21 | 2002-08-30 | Maspro Denkoh Corp | Branch transformer |
| WO2005038831A1 (en) * | 2003-10-20 | 2005-04-28 | Sumida Corporation | High-voltage transformer |
| KR100751592B1 (en) * | 2006-03-17 | 2007-08-27 | 부전전자 주식회사 | A transformer for inverter |
| JP2007266257A (en) * | 2006-03-28 | 2007-10-11 | Sumida Corporation | Inverter transformer |
| JP2008124130A (en) * | 2006-11-09 | 2008-05-29 | Sumida Corporation | Inverter transformer |
| WO2008129714A1 (en) * | 2007-04-10 | 2008-10-30 | Shigetoshi Watanabe | High-frequency boosting transformer for fluorescent tube |
| US7948350B2 (en) | 2008-05-08 | 2011-05-24 | Tdk Corporation | Coil component |
| CN105428038A (en) * | 2016-01-12 | 2016-03-23 | 南通富力机电设备有限责任公司 | Main transformer for multifunctional machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4348263B2 (en) * | 2004-09-08 | 2009-10-21 | スミダコーポレーション株式会社 | Leakage transformer |
-
1997
- 1997-02-21 JP JP03770497A patent/JP3386972B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201463B1 (en) * | 1998-10-13 | 2001-03-13 | Toko, Inc. | Inverter transformer |
| JP2002246233A (en) * | 2001-02-21 | 2002-08-30 | Maspro Denkoh Corp | Branch transformer |
| WO2005038831A1 (en) * | 2003-10-20 | 2005-04-28 | Sumida Corporation | High-voltage transformer |
| EP1681692A1 (en) * | 2003-10-20 | 2006-07-19 | Sumida Corporation | High-voltage transformer |
| KR100791916B1 (en) * | 2003-10-20 | 2008-01-04 | 스미다 코포레이션 | High-voltage transformer |
| EP1681692A4 (en) * | 2003-10-20 | 2014-11-26 | Sumida Corp | High-voltage transformer |
| KR100751592B1 (en) * | 2006-03-17 | 2007-08-27 | 부전전자 주식회사 | A transformer for inverter |
| JP2007266257A (en) * | 2006-03-28 | 2007-10-11 | Sumida Corporation | Inverter transformer |
| JP2008124130A (en) * | 2006-11-09 | 2008-05-29 | Sumida Corporation | Inverter transformer |
| WO2008129714A1 (en) * | 2007-04-10 | 2008-10-30 | Shigetoshi Watanabe | High-frequency boosting transformer for fluorescent tube |
| US7948350B2 (en) | 2008-05-08 | 2011-05-24 | Tdk Corporation | Coil component |
| CN105428038A (en) * | 2016-01-12 | 2016-03-23 | 南通富力机电设备有限责任公司 | Main transformer for multifunctional machine |
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| Publication number | Publication date |
|---|---|
| JP3386972B2 (en) | 2003-03-17 |
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