JPS6219112Y2

JPS6219112Y2 -

Info

Publication number: JPS6219112Y2
Application number: JP8674580U
Authority: JP
Priority date: 1980-06-19
Filing date: 1980-06-19
Publication date: 1987-05-15
Also published as: JPS5714690U

Description

【考案の詳細な説明】本考案はテレビジヨン受信機の陰極線管に直流
高電圧を供給するフライバツクトランスに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flyback transformer that supplies high DC voltage to a cathode ray tube of a television receiver.

第１図は従来のフライバツクトランスを示して
おり、一次コイルであるところの低圧コイル１と
二次コイルであるところの高圧コイル２の巻数比
により高調波同調を利用して高電圧を発生させる
ものであり、直流高電圧を得る為にダイオード３
を高圧コイル２の巻き終り部に接続し、また信頼
性の向上、高電圧への変換能率向上、高調波同調
等の理由から、前記高圧コイル２の巻き始め部に
ダイオード４を接続している。斯る場合、ダイオ
ード３，４を収納する為に、ターミナルボード８
付き低圧コイル用ボビン１ａと合体される高圧コ
イル２のボビン２ａのコイルの巻き始め及びコイ
ルの巻き終り部にそれぞれ比較的広い凹溝５′，
５を設けると共に前記ダイオード３，４の両端の
リードを挾着保持する小突起６，７を前記凹溝
５，５′におのおの一対設けている。このように
前記高圧コイル２の巻き始め部にダイオード４を
接続するフライバツクトランスに於いて従来は該
ダイオード４を収納する凹溝５を設けていた為大
型化が避けられなかつた。 Figure 1 shows a conventional flyback transformer, which generates high voltage by utilizing harmonic tuning based on the turns ratio of the low voltage coil 1, which is the primary coil, and the high voltage coil 2, which is the secondary coil. diode 3 to obtain high DC voltage.
A diode 4 is connected to the winding end of the high voltage coil 2, and a diode 4 is connected to the winding start of the high voltage coil 2 for reasons such as improving reliability, improving high voltage conversion efficiency, and harmonic tuning. . In such a case, the terminal board 8 is used to house the diodes 3 and 4.
Relatively wide grooves 5' are formed at the start and end of the winding of the bobbin 2a of the high-voltage coil 2 that is combined with the low-voltage coil bobbin 1a, respectively.
A pair of small protrusions 6, 7 for clamping and holding the leads at both ends of the diodes 3, 4 are provided in each of the grooves 5, 5'. As described above, in the flyback transformer in which the diode 4 is connected to the winding start portion of the high voltage coil 2, a groove 5 for accommodating the diode 4 has been conventionally provided, which inevitably increases the size of the transformer.

本考案は前記のような高圧コイルの巻き始め部
にダイオードを接続する形式のフライバツクトラ
ンスにおいて小型化及びダイオードの装着の簡略
化をはかるように工夫したフライバツクトランス
を提供するものである。 The present invention provides a flyback transformer of the type described above in which a diode is connected to the winding start of a high-voltage coil, which is designed to be smaller in size and to simplify the mounting of the diode.

以下図面に従つて本考案について説明する。 The present invention will be explained below with reference to the drawings.

第２図は本考案を実施したフライバツクトラン
スの側面図を示しており、第３図は該フライバツ
クトランスのコイルボビンの分解斜視図を示して
いる。ターミナルボード部８と鍔９との間隙を比
較的大きくすることによつて低圧コイル巻装用凹
溝１０に巻装される低圧コイル１の巻幅を広くす
ると共に該低圧コイル１の外径を小さくすること
によつて、凹溝１０をダイオード４の収納に十分
な深さ及び幅の凹溝にしている。そして前記凹溝
１０にダイオード４を収納し、該ダイオード４の
一端のリード端子４ａをターミナルボード部８に
設けてあるターミナル１１に捲着し、高圧コイル
２の巻き始め部に接続される他端のリード端子４
ｂは、高圧コイル２のボビン２ａの鍔１２と低圧
コイル１のボビンの鍔９とで形成される間隙部１
３に設けられた小突片１４にひつかけ固定する
か、或はリード端子４ｂを間隙部１３に挿着する
ことにより固定される。前記間隙部１３は、高圧
コイル用ボビン２ａの鍔１２の一部を切欠いて内
薄部を設けて前記高圧コイル２と低圧コイル用ボ
ビン１ａと合体したときに、高圧コイル用ボビン
２ａの鍔１２と低圧コイル用ボビン１ａの鍔１２
との間に形成され前記肉薄部には前記小突片１４
を設けてある。第４図はダイオード４の一端のリ
ード端子４ａをターミナル１１に捲着し、他端の
リード端子４ｂを小突片１４にひつかけ固定して
いる状態を示しており、第５図は前記リード端子
４ｂを間隙部１３に単に挿着し固定した場合の状
態を示す図である。 FIG. 2 shows a side view of a flyback transformer embodying the present invention, and FIG. 3 shows an exploded perspective view of a coil bobbin of the flyback transformer. By making the gap between the terminal board part 8 and the collar 9 relatively large, the winding width of the low voltage coil 1 wound in the low voltage coil winding groove 10 can be widened, and the outer diameter of the low voltage coil 1 can be made small. By doing so, the groove 10 is made deep and wide enough to accommodate the diode 4. Then, the diode 4 is housed in the groove 10, the lead terminal 4a at one end of the diode 4 is wound around the terminal 11 provided on the terminal board section 8, and the other end is connected to the winding start portion of the high voltage coil 2. lead terminal 4
b is a gap 1 formed between the collar 12 of the bobbin 2a of the high voltage coil 2 and the collar 9 of the bobbin of the low voltage coil 1;
3, or by inserting the lead terminal 4b into the gap 13. The gap 13 is formed by cutting out a part of the flange 12 of the high-voltage coil bobbin 2a to provide an inner thin part, and when the high-voltage coil 2 and the low-voltage coil bobbin 1a are combined, the flange 12 of the high-voltage coil bobbin 2a is formed. and collar 12 of bobbin 1a for low voltage coil
The small projecting piece 14 is formed between the
is provided. FIG. 4 shows a state in which the lead terminal 4a at one end of the diode 4 is wound around the terminal 11, and the lead terminal 4b at the other end is hooked and fixed to the small protrusion 14, and FIG. 7 is a diagram showing a state in which the terminal 4b is simply inserted into the gap 13 and fixed. FIG.

上述のように、本考案によればフライバツクト
ランスの高圧コイル２の巻き始め部にダイオード
４を接続する場合に、該ダイオード４を収納する
為の特別な収納凹溝及び保持機構を必要とせず、
ボビン１ａ，２ａの組合せ後の軸方向長さは実質
的に小さくなり、フライバツクトランスを小型化
出来、尚且つダイオード４の取り付けが容易とな
る。 As described above, according to the present invention, when the diode 4 is connected to the winding start of the high voltage coil 2 of the flyback transformer, there is no need for a special storage groove or holding mechanism for storing the diode 4. ,
The axial length of the bobbins 1a and 2a after they are combined becomes substantially smaller, making it possible to downsize the flyback transformer and making it easier to attach the diode 4.

[Brief explanation of the drawing]

第１図は従来のフライバツクトランスの側面図
である。第２図は本考案を実施したフライバツク
トランスの側面図である。第３図は本考案を実施
したフライバツクトランスの高圧コイルボビン及
び低圧コイルボビンの斜視図である。第４図と第
５図はダイオードの装着例を示す部分斜視図であ
る。１……低圧コイル、１ａ……低圧コイルボビ
ン、２……高圧コイル、２ａ……高圧コイル用ボ
ビン、３，４……ダイオード、４ａ，４ｂ……リ
ード端子、５，１０……溝、６，７……小突起、
８……ターミナルボード部、９，１２……鍔、１
１……ターミナル、１３……間隙部、１４……小
突片。 FIG. 1 is a side view of a conventional flyback transformer. FIG. 2 is a side view of a flyback transformer embodying the present invention. FIG. 3 is a perspective view of a high voltage coil bobbin and a low voltage coil bobbin of a flyback transformer embodying the present invention. FIGS. 4 and 5 are partial perspective views showing examples of mounting diodes. 1...Low voltage coil, 1a...Low voltage coil bobbin, 2...High voltage coil, 2a...Bobbin for high voltage coil, 3, 4...Diode, 4a, 4b...Lead terminal, 5, 10...Groove, 6, 7... small protrusion,
8... Terminal board section, 9, 12... Tsuba, 1
1...terminal, 13...gap, 14...small protrusion.

Claims

[Scope of utility model registration request]

A groove for winding a low-voltage coil is provided between the terminal board part and the collar, and the cylindrical part protruding from the other end of the collar is fitted into the hollow part of the high-voltage coil bobbin to be combined with the high-voltage coil bobbin. The gap between the terminal board part and the collar of the low voltage coil bobbin is made relatively large to widen the winding width of the low voltage coil wound in the groove, and the outer diameter of the low voltage coil is made small to install a diode in the groove. One end of the lead terminal of the diode is connected to a terminal provided on the terminal board part of the low voltage coil bobbin, while a part of the lead terminal at the other end connected to the winding start side of the high voltage coil is connected to the high voltage coil bobbin. A flyback transformer characterized in that the transformer is stored and held in the space formed between the flange and the tsuba.