JPH0560244B2 - - Google Patents
Info
- Publication number
- JPH0560244B2 JPH0560244B2 JP59264708A JP26470884A JPH0560244B2 JP H0560244 B2 JPH0560244 B2 JP H0560244B2 JP 59264708 A JP59264708 A JP 59264708A JP 26470884 A JP26470884 A JP 26470884A JP H0560244 B2 JPH0560244 B2 JP H0560244B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- insulating case
- transformer
- transformer body
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/42—Flyback transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
- H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Television Scanning (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ビデオカメラ用電子ビユーフアイン
ダーや小型テレビ受信機等に使用するフライバツ
クトランスに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flyback transformer used in electronic viewfinders for video cameras, small television receivers, and the like.
従来の技術
従来、この種のフライバツクは第３図と第４図
に示すように構成されている。１はシールドケー
ス、２は絶縁ケース、３はボビン７の巻溝にコイ
ル４を巻回して構成したトランス本体である。こ
のトランス本体３の鍔には、コイル４の巻始め、
巻終り部分が巻付け及び半田付けによつて接続さ
れるピン端子８が植設されており、このピン端子
８にダイオード等の電子部品が取付けられたプリ
ント基板５が半田付けされている。このようなト
ランス本体３とコア６などが前記シールドケース
１と絶縁ケース２内に収容されている。BACKGROUND OF THE INVENTION Conventionally, this type of flyback has been constructed as shown in FIGS. 3 and 4. 1 is a shield case, 2 is an insulating case, and 3 is a transformer body constructed by winding a coil 4 in a winding groove of a bobbin 7. The beginning of winding the coil 4 is placed on the flange of the transformer body 3.
A pin terminal 8 is implanted at the end of the winding to be connected by winding and soldering, and a printed circuit board 5 on which electronic components such as diodes are attached is soldered to this pin terminal 8. The transformer main body 3, core 6, etc. are housed within the shield case 1 and the insulating case 2.
このような従来の構成では、注型樹脂９を入れ
た場合、注型樹脂９によつてトランス本体３が絶
縁ケース２内で浮き上がつて絶縁劣化を起し、セ
ツト回路基板のパターンと短絡してしまうことが
あり、安全性に欠ける。 In such a conventional configuration, when the casting resin 9 is poured, the transformer body 3 is lifted up within the insulating case 2 by the casting resin 9, causing insulation deterioration and causing a short circuit with the pattern of the set circuit board. It is not safe as it may happen.
発明が解決しようとする問題点
このように従来のスライバツクトランスではト
ランス本体３が注型樹脂９の充填時に浮き上がつ
てこのまま注型樹脂９が固まると絶縁劣化の原因
となつて、安全性ならびに信頼性が低下する。Problems to be Solved by the Invention As described above, in the conventional sliback transformer, the transformer body 3 rises when the casting resin 9 is filled, and if the casting resin 9 hardens in this state, it causes insulation deterioration, resulting in safety issues. and reliability decreases.
本発明は注型樹脂充填時におけるトランス本体
の浮き上がりを防止できる構造のフライバツクト
ランスを提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a flyback transformer having a structure that prevents the transformer body from lifting up during filling with casting resin.
問題点を解決するための手段
本発明のフライバツクトランスは、ボビンにコ
イルを巻回して構成されボビンの鍔にピン端子を
有するトランス本体と、このトランス本体に接続
される回路部品を組み込んだプリント基板と，前
記トランス本体ならびにプリント基板を収容する
絶縁ケースとを設け、絶縁ケースの底部に前記ト
ランス本体を配設してその上方に前記プリント基
板を配設すると共に前記絶縁ケースにはプリント
基板の突起が係合する穴を設けてプリント基板で
トランス本体を絶縁ケース内に位置決め固定し、
前記絶縁ケース内に注型樹脂を充填したことを特
徴とする。Means for Solving the Problems The flyback transformer of the present invention comprises a transformer body which is constructed by winding a coil around a bobbin and has a pin terminal on the collar of the bobbin, and a printed circuit board incorporating circuit components connected to the transformer body. A board, an insulating case that accommodates the transformer main body and a printed circuit board are provided, the transformer main body is disposed at the bottom of the insulating case, the printed circuit board is disposed above it, and the printed circuit board is disposed in the insulating case. Position and fix the transformer body inside the insulating case using a printed circuit board with holes for the protrusions to engage.
The invention is characterized in that the insulating case is filled with casting resin.
作 用
この構成により、絶縁ケースの穴にプリント基
板の突起が係合することによつて、トランス本体
の絶縁ケース内での位置が前記プリント基板によ
つて規制され、トランス本体の注型樹脂充填時の
浮き上がりが防止され、安全性、信頼性が向上す
るものである。Effect With this configuration, the position of the transformer body within the insulation case is regulated by the printed circuit board by engaging the protrusion of the printed circuit board with the hole in the insulation case, and the casting resin filling of the transformer body is controlled by the printed circuit board. This prevents the rise in time and improves safety and reliability.
実施例
以下、本発明の一実施例を第１図と第２図に基
づいて説明する。なお第３図および第４図と同様
の作用を成すものには同一符号を付けてその説明
を省く。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Components having the same functions as those in FIGS. 3 and 4 are designated by the same reference numerals, and their explanations will be omitted.
第１図と第２図において、１０は絶縁ケース２
に設けられた穴で、プリント基板５と係合する位
置に穿設されている。１１はプリント基板５に形
成された突起で、この突起１１が前記穴１０に係
合している。なお、穴１０は、絶縁ケース２にト
ランス本体３とプリント基板５とを収容し、この
収容されたプリント基板５が位置する高さ近傍に
穿設されている。 In Figures 1 and 2, 10 is the insulating case 2.
The hole is formed at a position where it engages with the printed circuit board 5. 11 is a protrusion formed on the printed circuit board 5, and this protrusion 11 is engaged with the hole 10. The hole 10 accommodates the transformer body 3 and the printed circuit board 5 in the insulating case 2, and is bored near the height at which the accommodated printed circuit board 5 is located.
このようにしてプリント基板５の突起１１を絶
縁ケース２の穴１０に係合させた状態で絶縁ケー
ス２の上部開口から注型樹脂９を充填する。この
時、トランス本体３はプリント基板５によつて絶
縁ケース２内で位置決めされているため、注型樹
脂９の充填によつて浮き上がるようなことがな
く、注型樹脂９によつて安全にモールドされる。 In this manner, with the protrusions 11 of the printed circuit board 5 engaged with the holes 10 of the insulating case 2, the casting resin 9 is filled from the upper opening of the insulating case 2. At this time, since the transformer body 3 is positioned within the insulating case 2 by the printed circuit board 5, it will not be lifted up by the filling of the casting resin 9, and the transformer body 3 will be safely molded by the casting resin 9. be done.
発明の効果
以上説明のように本発明のフライバツクトラン
スはプリント基板５の突起１１を絶縁ケース２の
穴１０に係合させてトランス本体を位置決めした
ため、絶縁ケースへの注型樹脂充填時のトランス
本体の浮き上がりを防止でき、生産時における歩
留り向上、安全性、信頼性の向上を実現出来るも
のである。Effects of the Invention As explained above, in the flyback transformer of the present invention, the protrusion 11 of the printed circuit board 5 is engaged with the hole 10 of the insulating case 2 to position the transformer body. This prevents the main body from lifting up and improves yield, safety, and reliability during production.
さらに、上記のように絶縁ケース２の穴１０に
プリント基板５の突起１１を係合させているた
め、絶縁ケース２の内側に形成した突起にプリン
ト基板５を係合させる場合に比べて、より確実な
係合状態を得ることができ、しかも絶縁ケース２
の成形加工においても、プリント基板５が係合す
る突起を絶縁ケース２の内側に形成する場合に比
べて絶縁ケース２に穴１０を形成する本構成の方
が成形加工も容易である。 Furthermore, since the protrusion 11 of the printed circuit board 5 is engaged with the hole 10 of the insulating case 2 as described above, it is more effective than when the printed circuit board 5 is engaged with a protrusion formed inside the insulating case 2. A reliable engagement state can be obtained, and the insulation case 2
Also in the molding process, the present configuration in which the hole 10 is formed in the insulating case 2 is easier than in the case where the protrusion with which the printed circuit board 5 engages is formed inside the insulating case 2.
第１図は本発明のフライバツクトランスの一部
切欠き外観斜視図、第２図は第１図の要部縦断面
図、第３図は従来のフライバツクトランスの一部
切欠き外観斜視図、第４図は第３図の断面図であ
る。
１……シールドケース、２……絶縁ケース、３
……トランス本体、５……プリント基板、６……
コア、９……注型樹脂、１０……穴、１１……突
起。
Fig. 1 is a partially cut-away external perspective view of a flyback transformer of the present invention, Fig. 2 is a longitudinal cross-sectional view of the main part of Fig. 1, and Fig. 3 is a partially-cut external external perspective view of a conventional flyback transformer. , FIG. 4 is a sectional view of FIG. 3. 1... Shield case, 2... Insulation case, 3
...Transformer body, 5...Printed circuit board, 6...
Core, 9...casting resin, 10...hole, 11...protrusion.
Claims (1)
鍔にピン端子を有するトランス本体３と、このト
ランス本体に接続される回路部品を組み込んだプ
リント基板５と、前記トランス本体ならびにプリ
ント基板を収容する絶縁ケース２とを設け、絶縁
ケースの底部に前記トランス本体を配設してその
上方に前記プリント基板を配設すると共に、前記
絶縁ケースにはプリント基板の突起１１が係合す
る穴１０を設けてプリント基板でトランス本体を
絶縁ケース内に位置決め固定し、前記絶縁ケース
内に注型樹脂を充填したフライバツクトランス。1. A transformer body 3 which is constructed by winding a coil around a bobbin and has pin terminals on the collar of the bobbin, a printed circuit board 5 incorporating circuit components connected to the transformer body, and an insulator that houses the transformer body and the printed circuit board. A case 2 is provided, the transformer body is disposed at the bottom of the insulating case, the printed circuit board is disposed above the transformer body, and a hole 10 is provided in the insulating case to be engaged with a protrusion 11 of the printed circuit board. A flyback transformer in which the main body of the transformer is positioned and fixed within an insulating case using a printed circuit board, and the insulating case is filled with casting resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59264708A JPS61142716A (en) | 1984-12-14 | 1984-12-14 | Flyback transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59264708A JPS61142716A (en) | 1984-12-14 | 1984-12-14 | Flyback transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61142716A JPS61142716A (en) | 1986-06-30 |
| JPH0560244B2 true JPH0560244B2 (en) | 1993-09-01 |
Family
ID=17407077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59264708A Granted JPS61142716A (en) | 1984-12-14 | 1984-12-14 | Flyback transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61142716A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528724Y2 (en) * | 1987-02-20 | 1993-07-23 |
-
1984
- 1984-12-14 JP JP59264708A patent/JPS61142716A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61142716A (en) | 1986-06-30 |
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