JPH0737295Y2 - High voltage transformer - Google Patents
High voltage transformerInfo
- Publication number
- JPH0737295Y2 JPH0737295Y2 JP1989054222U JP5422289U JPH0737295Y2 JP H0737295 Y2 JPH0737295 Y2 JP H0737295Y2 JP 1989054222 U JP1989054222 U JP 1989054222U JP 5422289 U JP5422289 U JP 5422289U JP H0737295 Y2 JPH0737295 Y2 JP H0737295Y2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- transformer
- voltage transformer
- resin
- winding
- 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 - Lifetime
Links
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- Insulating Of Coils (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、例えばバーナの点火器等に使用される高圧ト
ランスに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a high-voltage transformer used in, for example, an igniter of a burner.
（従来の技術） 従来の高圧トランスは、樹脂製筒状ボビンの片側に一次
巻線を巻回し、他側に二次巻線を巻回した構造を有し、
出力端子は、二次巻線の両端の鍔に設けていた。(Prior Art) A conventional high-voltage transformer has a structure in which a primary winding is wound on one side of a resin cylindrical bobbin and a secondary winding is wound on the other side.
The output terminals were provided on the collars at both ends of the secondary winding.
（考案が解決しようとする課題） 上記従来構造においては、出力電圧をより高くする必要
がある場合、出力端子間の間隔が絶縁破壊の面で充分で
なく、このため、ボビンの二次巻線巻回部の長さを所定
の長さ以上に確保しなければならず、小型化する上で障
害になるという問題点があった。(Problems to be Solved by the Invention) In the above conventional structure, when the output voltage is required to be higher, the space between the output terminals is not sufficient in terms of dielectric breakdown, and therefore the secondary winding of the bobbin is formed. Since the length of the winding portion must be ensured to be equal to or longer than a predetermined length, there is a problem in that it is an obstacle to miniaturization.
このような問題点を解決するため、例えば実開昭60−15
3514号公報に開示されているように、ボビンの中央部に
一次巻線を巻き、その両側に二次巻線を巻いたものがあ
る。このような構成とすれば、出力端子間の間隔が一次
巻線巻回部の長さだけ大となり、従って絶縁破壊が起こ
りにくくなり、短絡が起こりにくい高圧トランスが提供
でき、また、出力電圧の高い高圧トランスを提供でき
る。また、出力端子間隔を大とするためにボビンの二次
巻線巻回部を長くする必要がなくなり、トランスの小型
化が達成される。To solve these problems, for example
As disclosed in Japanese Patent No. 3514, there is a bobbin in which a primary winding is wound around the center and secondary windings are wound on both sides thereof. With such a configuration, the distance between the output terminals is increased by the length of the primary winding winding portion, so that it is possible to provide a high-voltage transformer in which insulation breakdown is less likely to occur and a short circuit is less likely to occur. A high voltage transformer can be provided. In addition, it is not necessary to lengthen the secondary winding winding portion of the bobbin in order to increase the distance between the output terminals, and the size of the transformer can be reduced.
本考案は、このように二次巻線と一次巻線の配設構造を
有する高圧トランスにおいて、注型により樹脂で全体を
覆う場合、樹脂が容易に充填されて絶縁耐圧を向上させ
ることができ、製造上のばらつきなく、外周面を注型樹
脂により覆った高圧トランスを提供することを目的とす
る。According to the present invention, in the high voltage transformer having the arrangement structure of the secondary winding and the primary winding as described above, when the whole is covered with the resin by casting, the resin is easily filled to improve the withstand voltage. An object of the present invention is to provide a high-voltage transformer whose outer peripheral surface is covered with a casting resin without variations in manufacturing.
（課題を解決するための手段） 本考案は、上記目的を達成するため、ボビンの中央部の
鍔により区画された部分に一次巻線を巻回し、該一次巻
線巻回部の両側の鍔により区画された部分に、相互に接
続される二次巻線を巻回し、二次巻線の出力端子を、ボ
ビンの両端部に設けた高圧トランスにおいて、前記高圧
トランスを絶縁性樹脂によって注型し、前記ボビンの両
端面に、注型用の型の内面に設ける台部に載置する突起
を設けることにより、ボビンの外周面を注型樹脂により
覆ったことを特徴とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention winds a primary winding around a portion of the bobbin defined by the collar at the center, and the collars on both sides of the primary winding are wound. In a high-voltage transformer in which secondary windings connected to each other are wound around the section partitioned by, and output terminals of the secondary winding are provided at both ends of the bobbin, the high-voltage transformer is cast with an insulating resin. The bobbin is covered with a casting resin on both end surfaces of the bobbin so that the outer surface of the bobbin is covered with the casting resin.
本考案において、樹脂のトランス取付け基板への取付け
面を台形に形成して前記樹脂の両端面をテーパー面に形
成し、前記取付け面の幅の広い側に前記二次巻線の出力
端子を配設し、幅の狭い側に入力端子を配設した構成と
することがより好ましい。In the present invention, the mounting surface of the resin to the transformer mounting substrate is formed into a trapezoidal shape, both end surfaces of the resin are formed into tapered surfaces, and the output terminal of the secondary winding is arranged on the wide side of the mounting surface. It is more preferable that the input terminal is provided on the side with a narrow width.
また、本考案においては、ボビンの一次巻線の両側の鍔
にそれぞれ二次巻線の中継端子が設けられるが、これら
の中継端子を線材によって直接接続する構成以外に、ト
ランスの取付け基板上に形成した導体パターンにより前
記中継端子どうしを接続する構成が採用される。Further, in the present invention, the secondary winding relay terminals are provided on the collars on both sides of the bobbin primary winding, respectively. A configuration is adopted in which the relay terminals are connected to each other by the formed conductor pattern.
（作用） 本考案においては、ボビンの両端に突起を設け、該突起
を注型用の型の内面に形成した台部上に載置する構成と
したので、型の内面とボビン外周との間に間隙が形成さ
れて型の内面とボビンとの間に注型樹脂を容易に充填す
ることができ、絶縁耐圧を向上させることができる。ま
た、ボビンを注型用型内に正しい姿勢でセットできるの
で、製造上のばらつきなく、注型樹脂で外周面を覆った
高圧トランスが提供可能となる。(Operation) In the present invention, the bobbin is provided with protrusions at both ends thereof, and the protrusions are placed on the table formed on the inner surface of the casting mold. Since a gap is formed in the mold, the casting resin can be easily filled between the inner surface of the mold and the bobbin, and the withstand voltage can be improved. Further, since the bobbin can be set in the casting mold in a correct posture, it is possible to provide a high-voltage transformer whose outer peripheral surface is covered with the casting resin without variations in manufacturing.
また、取付け面を台形にして注型樹脂の両端面をテーパ
ー状に形成した場合には、トランスの取付け板等への取
付けの際、方向性が一目にして判別でき、取付けが容易
となる。Further, when the mounting surface is trapezoidal and both end surfaces of the casting resin are formed in a tapered shape, when the transformer is mounted on the mounting plate or the like, the direction can be discriminated at a glance and the mounting becomes easy.
また、中継端子どうしを取付け基板上の導体パターンに
よって接続することにより、中継端子間を線材によって
接続する作業が不要となる。In addition, since the relay terminals are connected to each other by the conductor pattern on the mounting substrate, the work of connecting the relay terminals with the wire material becomes unnecessary.
（実施例） 第１図は本考案による高圧トランスの一実施例を注型樹
脂を透視して示す正面図、第２図はその底面図、第３図
および第４図はそれぞれ第１図の右側面図および左側面
図である。第１図ないし第４図において、１は絶縁性樹
脂製ボビンであり、該ボビン１は筒状部1aの全長にわた
り、鍔1a〜1iをそれぞれ所定間隔を持って形成してな
る。筒状部1a内には、コア10を嵌着している。(Embodiment) FIG. 1 is a front view showing an embodiment of a high voltage transformer according to the present invention as seen through a casting resin, FIG. 2 is a bottom view thereof, and FIGS. 3 and 4 are respectively FIG. It is a right side view and a left side view. 1 to 4, reference numeral 1 denotes an insulating resin bobbin, and the bobbin 1 is formed by forming the collars 1a to 1i at predetermined intervals over the entire length of the tubular portion 1a. A core 10 is fitted in the tubular portion 1a.
２は一次巻線、3a〜3fは二次巻線を構成する分割巻線で
あり、一次巻線２は、ボビン１の中央部、すなわち端子
台を兼ねた広幅の鍔1e、1fで区画された部分に巻回さ
れ、該一次巻線２の両端は、鍔1e、1fに固定された入力
端子4a、4bにからげて半田付けされる。Reference numeral 2 is a primary winding, and 3a to 3f are split windings that constitute a secondary winding. The primary winding 2 is divided by the central portion of the bobbin 1, that is, the wide collars 1e and 1f that also serve as terminal blocks. The both ends of the primary winding 2 are coiled around and soldered to the input terminals 4a and 4b fixed to the collars 1e and 1f.
二次巻線は、左側の３組の分割巻線3a〜3cと、右側の分
割巻線3d〜3fとからなり、左側分割巻線3a、3b、3cは、
それぞれ鍔1bと1c、1cと1d、1dと1eで区画された部分に
巻回され、分割巻線3a〜3c間の端部は鍔1c、1dに設けら
れた溝５に嵌めて隣接する分割巻線にわたした一連のも
のであり、その一端は鍔1bに固定した出力端子6aにから
げて半田付けし、他端は前記鍔1eに固定した中継端子7a
にからげて半田付けしている。右側の分割巻線3d〜3fも
それぞれ鍔1fと1g、1gと1h、1hと1i間に巻回された一連
のものであり、その一端を鍔1fに固定した中継端子7bに
からげて半田付けし、他端を鍔1iに固定した出力端子6b
にからげて半田付けしている。The secondary winding is composed of three sets of split windings 3a to 3c on the left side and split windings 3d to 3f on the right side, and the left split windings 3a, 3b, 3c are
The end portions between the divided windings 3a to 3c are respectively wound around the portions defined by the collars 1b and 1c, 1c and 1d, 1d and 1e, and the adjacent divisions are fitted in the grooves 5 provided in the collars 1c and 1d. It is a series of windings, one end of which is twisted and soldered to the output terminal 6a fixed to the collar 1b, and the other end is a relay terminal 7a fixed to the collar 1e.
It is soldered in a loose manner. The right split windings 3d to 3f are also a series of windings that are wound between the collars 1f and 1g, 1g and 1h, 1h and 1i, respectively, and one end of which is twisted to the relay terminal 7b fixed to the collar 1f and soldered. Output terminal 6b with the other end fixed to the collar 1i
It is soldered in a loose manner.
前記端子台を兼ねた鍔1eと1fには、一次巻線２に重ねて
巻かれたスイッチング用のフィードバック巻線の両端を
接続する端子8a、8bが固定されている。Terminals 8a, 8b connecting both ends of a switching feedback winding wound on the primary winding 2 are fixed to the collars 1e and 1f also serving as the terminal blocks.
９は絶縁性の注型樹脂であり、該注型樹脂は、端子4a、
4b、6a、6b、7a、7b、8a、8bの先端部を除いてトランス
全体を一体に覆っている。前記注型樹脂９より端子4a等
を突出させた面9aが平面状の取付け面であり、第２図な
いし第４図に示すように、出力端子6a、6bは取付け面9a
における入力端子4a、4bの反対側の角部に設けてある。
すなわち、出力端子6a、6bは、ボビン１の両端の鍔1b、
1iに突設した突起11,12にそれぞれ基端部を固定し、中
間部を取付け面9a側に設けた突起13、14に貫通固定して
いる。9 is an insulating casting resin, and the casting resin is the terminal 4a,
The entire transformer is integrally covered except for the tips of 4b, 6a, 6b, 7a, 7b, 8a and 8b. A surface 9a on which the terminals 4a and the like are projected from the casting resin 9 is a flat mounting surface. As shown in FIGS. 2 to 4, the output terminals 6a and 6b are mounted on the mounting surface 9a.
Is provided at a corner opposite to the input terminals 4a and 4b.
That is, the output terminals 6a and 6b are the collars 1b at both ends of the bobbin 1,
The base ends are fixed to the projections 11 and 12 projecting from 1i, respectively, and the intermediate part is penetrated and fixed to the projections 13 and 14 provided on the mounting surface 9a side.
第２図に示すように、注型樹脂の取付け面を台形に形成
し、注型樹脂９の両端面どうしの間隔は、出力端子6a、
6bを取付けた側の間隔W1がその反対側の入力端子4a、4b
を取付けた側の間隔W2より大となるようにテーパー状に
形成してある。As shown in FIG. 2, the mounting surface of the casting resin is formed in a trapezoidal shape, and the distance between the two end surfaces of the casting resin 9 is set to the output terminal 6a,
The distance W1 on the side where 6b is attached is the input terminal 4a, 4b on the opposite side.
It is formed in a taper shape so as to be larger than the interval W2 on the side where the is attached.
15、16はそれぞれボビン１の両端の鍔1b、1iに設けた円
形の突起であり、第５図の平面図および第６図の断面図
に示すように、巻線２、3a〜3fを施したボビン１を注型
用型17に入れ、注型用の樹脂を型17内に注入して硬化さ
せる場合、これらの突起15、16および前記出力端子6a、
6bの根本部を固定する突起11、12を、型17内の４隅に設
けた台部18、19、20、21にそれぞれ載置し、これによ
り、型17の内面とボビン１との間に間隙Ｇが形成される
ようにし、注入した注型樹脂がこの間隙Ｇに容易に浸入
してボビン１の外周が樹脂９によって覆われるようにす
ると共に、注型樹脂を成形部の上辺23より周囲の受け溝
22に溢れさせて放置あるいは加熱して樹脂を硬化させる
際、ボビン１の姿勢が水平に保持されるようにしてい
る。Reference numerals 15 and 16 denote circular protrusions provided on the collars 1b and 1i at both ends of the bobbin 1, respectively. As shown in the plan view of FIG. 5 and the sectional view of FIG. 6, windings 2 and 3a to 3f are provided. When the above bobbin 1 is put into the casting mold 17 and the casting resin is injected into the mold 17 and cured, these protrusions 15 and 16 and the output terminal 6a,
The protrusions 11 and 12 for fixing the root portion of 6b are placed on the bases 18, 19, 20 and 21 provided at the four corners of the mold 17, respectively, so that the inner surface of the mold 17 and the bobbin 1 are separated from each other. A gap G is formed in the gap G, the injected casting resin easily penetrates into the gap G so that the outer periphery of the bobbin 1 is covered with the resin 9, and the casting resin is applied from the upper side 23 of the molding portion. Surrounding groove
The posture of the bobbin 1 is kept horizontal when the resin is cured by spilling it over 22 and leaving it or heating it.
また、突起15、16を円形に形成することにより、注型樹
脂中に含まれている気泡を真空吸引して脱泡する際、気
泡が容易に突起15、16の下面から抜けるようにしてい
る。Further, by forming the protrusions 15 and 16 in a circular shape, when the bubbles contained in the casting resin are vacuum-sucked and defoamed, the bubbles can easily escape from the lower surface of the protrusions 15 and 16. .
このトランスは、第７図に示すように、取付け基板24に
設けた孔25に端子6a、6b、7a、7b（他の端子4a、4b、8
a、8bについても同様）を挿通し半田付けするが、中継
端子7a、7bどうしは、取付け基板24上に形成した導体パ
ターン27により相互に接続し、これにより、トランス製
造時において、中継端子7a、7bどうしを線材により接続
する作業（この作業は手作業となる）が不要となる。As shown in FIG. 7, this transformer has terminals 6a, 6b, 7a, 7b (other terminals 4a, 4b, 8) in holes 25 provided in a mounting substrate 24.
The same applies to a and 8b) and solder them, but the relay terminals 7a and 7b are connected to each other by the conductor pattern 27 formed on the mounting board 24. , 7b are not required to be connected by wire (this work is manual work).
（考案の効果） 請求項１によれば、ボビンの両端面に、型の内面に設け
た台に載置する突起を設けたので、注型用型内でボビン
の周囲に注型樹脂が容易に充填されてボビン等を覆うこ
とができ、絶縁耐圧を向上させることができる。また、
ボビンを注型用型内に正しい姿勢でセットでき、製造上
のばらつきなく、注型樹脂で外周面を覆った高圧トラン
スが提供可能となる。(Effect of the Invention) According to claim 1, since the projections to be mounted on the table provided on the inner surface of the die are provided on both end surfaces of the bobbin, the casting resin can be easily provided around the bobbin in the casting die. It is possible to cover the bobbin and the like by being filled up with and to improve the withstand voltage. Also,
The bobbin can be set in the casting mold in the correct posture, and it is possible to provide a high-voltage transformer in which the outer peripheral surface is covered with casting resin without variations in manufacturing.
請求項２によれば、注型樹脂の両端面をテーパー状に形
成したので、トランスの取付け板等への取付けの際、方
向性が一目にして判別でき、取付けが容易となる。ま
た、出力端子をトランスの取付け面の片側の角部に設
け、その出力端子を設けた側の両端面間隔より反対側の
両端面間隔を小としたので、出力端子間隔を大とし、か
つ注型樹脂量を低減できる。According to the second aspect, since both end surfaces of the casting resin are formed in a tapered shape, when the transformer is mounted on the mounting plate or the like, the direction can be discriminated at a glance and the mounting becomes easy. In addition, the output terminals are provided at one corner of the mounting surface of the transformer, and the distance between both end surfaces on the opposite side is smaller than the distance between both end surfaces on the side where the output terminals are provided. The amount of mold resin can be reduced.
請求項３によれば、取付け基板に設けた導体パターンに
より二次巻線の中継端子どうしを接続したので、トラン
ス製造時における中継端子接続作業が不要となり、製造
能率を向上させることができる。According to the third aspect, since the relay terminals of the secondary winding are connected to each other by the conductor pattern provided on the mounting substrate, the relay terminal connecting work at the time of manufacturing the transformer is unnecessary, and the manufacturing efficiency can be improved.
第１図は本考案による高圧トランスの一実施例を、注型
樹脂部を透視して示す正面図、第２図はその底面図、第
３図および第４図はそれぞれ第１図の右側面図および左
側面図、第５図は該実施例の注型用型の一例を示す平面
図、第６図は第５図の型に巻線後のボビンをセットした
状態を示す断面図、第７図は該実施例の高圧トランスを
取付け基板に取付けた状態を示す一部断面背面図であ
る。 1:ボビン、1a:筒体部、1b〜1i:鍔、2:一次巻線、3a〜3
f:二次巻線、4a、4b:入力端子、6a、6b:出力端子、7a、
7b:中継端子、8a、8b:フィードバック端子、9:注型樹
脂、10:コア、11〜16:突起、17:注型用型、18〜21:台部FIG. 1 is a front view showing an embodiment of a high voltage transformer according to the present invention as seen through a casting resin portion, FIG. 2 is a bottom view thereof, and FIGS. 3 and 4 are right side faces of FIG. 1, respectively. Fig. And left side view, Fig. 5 is a plan view showing an example of the casting mold of the embodiment, Fig. 6 is a sectional view showing a state in which a bobbin after winding is set in the mold of Fig. 5, FIG. 7 is a partial cross-sectional rear view showing a state in which the high-voltage transformer of this embodiment is attached to a mounting board. 1: Bobbin, 1a: Cylindrical part, 1b-1i: Tsuba, 2: Primary winding, 3a-3
f: secondary winding, 4a, 4b: input terminal, 6a, 6b: output terminal, 7a,
7b: relay terminal, 8a, 8b: feedback terminal, 9: casting resin, 10: core, 11 to 16: protrusion, 17: casting mold, 18 to 21: base part
Claims (3)
に一次巻線を巻回し、該一次巻線巻回部の両側の鍔によ
り区画された部分に、相互に接続される二次巻線を巻回
し、二次巻線の出力端子を、ボビンの両端部に設けた高
圧トランスにおいて、 前記高圧トランスを絶縁性樹脂によって注型し、前記ボ
ビンの両端面に、注型用の型の内面に設ける台部に載置
する突起を設けることにより、ボビンの外周面を注型樹
脂により覆ったことを特徴とする高圧トランス。1. A secondary winding, in which a primary winding is wound around a central portion of a bobbin that is defined by a collar, and the portions defined by the collars on both sides of the primary winding winding portion are mutually connected. In a high-voltage transformer in which a wire is wound and the output terminal of the secondary winding is provided at both ends of the bobbin, the high-voltage transformer is cast with an insulating resin, and the both ends of the bobbin are provided with a casting mold. A high-voltage transformer characterized in that the outer peripheral surface of the bobbin is covered with a casting resin by providing a protrusion to be mounted on a table portion provided on the inner surface.
を台形に形成して前記樹脂の両端面をテーパー面に形成
し、前記取付け面の幅の広い側に前記二次巻線の出力端
子を配設し、幅の狭い側に入力端子を配設したことを特
徴とする請求項１記載の高圧トランス。2. A mounting surface of the resin on a transformer mounting substrate is formed into a trapezoidal shape, both end surfaces of the resin are formed into tapered surfaces, and an output terminal of the secondary winding is provided on a side where the mounting surface is wide. The high voltage transformer according to claim 1, wherein the input terminal is provided on the side having a narrow width.
ランスのボビンの一次巻線の両側の鍔にそれぞれ二次巻
線の中継端子を設け、これらの中継端子を、トランスの
取付け基板上に設けた導体パターンにより接続すること
を特徴とする高圧トランス。3. A transformer winding terminal according to claim 1 is provided with secondary winding relay terminals on both sides of the primary winding of the bobbin of the transformer, and these relay terminals are mounted on a transformer mounting board. A high-voltage transformer characterized by being connected by a conductor pattern provided on the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989054222U JPH0737295Y2 (en) | 1989-05-11 | 1989-05-11 | High voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989054222U JPH0737295Y2 (en) | 1989-05-11 | 1989-05-11 | High voltage transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02146815U JPH02146815U (en) | 1990-12-13 |
| JPH0737295Y2 true JPH0737295Y2 (en) | 1995-08-23 |
Family
ID=31576094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989054222U Expired - Lifetime JPH0737295Y2 (en) | 1989-05-11 | 1989-05-11 | High voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0737295Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2604103Y2 (en) * | 1991-08-30 | 2000-04-17 | 株式会社日立メディアエレクトロニクス | Trance |
| JP4707050B2 (en) * | 2004-12-02 | 2011-06-22 | Ｆｄｋ株式会社 | Inverter transformer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616921U (en) * | 1979-07-17 | 1981-02-14 | ||
| JPS60153514U (en) * | 1984-03-22 | 1985-10-12 | 澤藤電機株式会社 | Ignition coil for internal combustion engine |
-
1989
- 1989-05-11 JP JP1989054222U patent/JPH0737295Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02146815U (en) | 1990-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |