JPH0314953Y2 - - Google Patents
Info
- Publication number
- JPH0314953Y2 JPH0314953Y2 JP1984145549U JP14554984U JPH0314953Y2 JP H0314953 Y2 JPH0314953 Y2 JP H0314953Y2 JP 1984145549 U JP1984145549 U JP 1984145549U JP 14554984 U JP14554984 U JP 14554984U JP H0314953 Y2 JPH0314953 Y2 JP H0314953Y2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- case
- insulating
- storage section
- notch
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
- Coils Or Transformers For Communication (AREA)
- Rectifiers (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案はフライバツクトランスに関し、特に多
倍圧整流ブロツクを内蔵する小型フライバツクト
ランスに関するものである。[Detailed description of the invention] (a) Industrial application field The present invention relates to a flyback transformer, and particularly to a small flyback transformer incorporating a multiplier rectifier block.
(ロ) 従来の技術
ビデオカメラの電子ビユーフアインダに高圧を
供給するために多倍圧整流ブロツクを内蔵する小
型フライバツクトランスが使用される。このよう
な小型フライバツクトランスの従来例としては例
えば実開昭58−189511号公報に記載のものがあ
る。この公報に記載のフライバツクトランスは第
５図に示すように一つのケース１内に多倍圧整流
ブロツク２及びコイル部品３を収納し、これらを
コア４をも含めて全体を絶縁樹脂でモールドする
形式となつている。しかしながら、このようにコ
アをも含めてモールドした場合、絶縁樹脂がエポ
キシ樹脂等の硬化後の状態が硬いものであると、
コアとの熱膨張係数の差に起因してコア割れが生
じてしまう。これを解消するために絶縁樹脂とし
てフレキシブルな樹脂、例えばウレタン樹脂やシ
リコン樹脂等の使用が望まれるが、その場合、熱
による樹脂の膨張率が高く、一対のコア半体を突
き合わされてなるコアを引つ張つて、突き合せ部
に設けたコアギヤツプの長さを変化させてしま
い、出力電圧の変動をもたらすという不都合を招
来するという欠点がある。(b) Prior Art A small flyback transformer with a built-in multi-voltage rectifier block is used to supply high voltage to the electronic viewfinder of a video camera. A conventional example of such a small flyback transformer is one described in, for example, Japanese Utility Model Application No. 189511/1983. As shown in FIG. 5, the flyback transformer described in this publication houses a multi-voltage rectifier block 2 and a coil component 3 in a single case 1, and the entire body including the core 4 is molded with insulating resin. The format is as follows. However, when molding including the core in this way, if the insulating resin is hard after curing, such as epoxy resin,
Core cracking occurs due to the difference in thermal expansion coefficient with the core. To solve this problem, it is desirable to use a flexible resin such as urethane resin or silicone resin as the insulating resin, but in that case, the expansion rate of the resin due to heat is high, and the core is made by butting a pair of core halves together. This has the disadvantage that the length of the core gap provided at the abutting portion changes due to the tension, which causes the inconvenience of fluctuations in the output voltage.
(ハ) 考案が解決しようとする問題点
フライバツクトランスの低背化を図るとともに
コア割れを防止し、更に出力電圧の温度特性の低
下を防ぐ。(c) Problems to be solved by the invention: The height of the flyback transformer is reduced, core cracking is prevented, and the temperature characteristics of the output voltage are prevented from deteriorating.
(ニ) 問題点を解決する為の手段
一つの絶縁ケースの内部に第１、第２の収納部
を形成する仕切板を設け、この仕切板で形成され
る切欠部の底部側をコイル部品に設けられた端子
板で閉塞するようにして、前記コイル部品を第１
の収納部に収納するとともに多倍圧整流ブロツク
を第２の収納部に収納し、コイル部品と整流ブロ
ツクとの電気的接続を前記端子板を貫通する端子
ピンで行ない、前記第２の収納部内に絶縁樹脂を
施して多倍圧整流ブロツクをモールドした。(d) Measures to solve the problem A partition plate that forms the first and second storage parts is provided inside one insulating case, and the bottom side of the notch formed by this partition plate is attached to the coil component. The coil component is connected to the first coil component so as to be closed by the provided terminal plate.
At the same time, the multi-voltage rectifier block is stored in the second storage part, and the electrical connection between the coil component and the rectification block is made by a terminal pin that passes through the terminal board, and the multi-voltage rectifier block is stored in the second storage part. A multi-voltage rectifier block was molded by applying insulating resin to the block.
(ホ) 作用
コイル部品と多倍圧整流ブロツクとが電気的に
接続された状態で、それぞれ一のケース内に形成
された別の空間に収納されるので、多倍圧整流ブ
ロツクのみ樹脂モールドすることができる。(e) Function Since the coil parts and the multi-voltage rectifier block are electrically connected and housed in separate spaces formed within a single case, only the multi-voltage rectifier block is molded in resin. be able to.
(ヘ) 実施例
以下本考案の一実施例を第１図乃至第４図を参
照しつつ詳述する。(F) Embodiment An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 4.
第１図は例えばビデオカメラの電子ビユーフア
インダ用ブラウン管に高圧を供給するために使用
される本考案の小型フライバツクトランスの分解
斜視図を示しており、５は絶縁性の高い合成樹脂
で形成された一端開口状の絶縁ケースであつて、
該ケース５にはその底部６と側壁７に繋がるとと
もにケース５の高さより若干低い仕切板８が設け
られている。また、前記仕切板８と該仕切板８に
対向するよう側壁９に設けられた係合突提１０に
よつて切欠部１１が形成されており、前記仕切板
８によつてケース５の内部は第１の収納部１２と
第２の収納部１３に分けられている。そして、第
２の収納部１３の側壁１４の端部には、ケース５
の底面に向つて幅狭となるようなテーパー形状を
なす側端部１５，１５と、中央部が曲面状に為さ
れた凹所１６が形成された凹欠部１７が形成され
ている。 Fig. 1 shows an exploded perspective view of a small flyback transformer of the present invention used for supplying high voltage to a cathode ray tube for electronic viewfinder of a video camera, for example, and 5 is made of highly insulating synthetic resin. An insulating case with one end open,
The case 5 is provided with a partition plate 8 that is connected to the bottom 6 and the side wall 7 and is slightly lower in height than the case 5. Further, a notch 11 is formed by the partition plate 8 and an engaging protrusion 10 provided on the side wall 9 so as to face the partition plate 8. It is divided into a first storage section 12 and a second storage section 13. A case 5 is provided at the end of the side wall 14 of the second storage section 13.
A concave notch 17 is formed in which side end portions 15, 15 are tapered to become narrower toward the bottom surface, and a concave portion 16 having a curved central portion is formed.
１８は第３図に示す如きコイルボビン１９に高
圧コイル及び低圧コイル等を形成するコイル線２
０を各鍔部２１，２１，２１間の所定位置に所定
回数巻回されるとともにこれらコイル線２０をタ
ーミナルボード２２に植設された外部接続用端子
ピン２３，２３…に巻着し、一対のＥ字型コア２
４，２４が組み合されて構成されてなるコイル部
品であつて、前記コイルボビン１９には端子ピン
２５が貫通された端子板２６が一体に設けられて
いる。前記端子板２６には上記係合突提１０が密
着嵌合する溝２７と前記仕切板８の側端部８ａが
係合する欠除部２８が設けられており、コイル部
品１８に得られる高圧出力電圧を導出するコイル
線２０′が前記端子ピン２５の一端に巻着されて
いる。２９は倍圧用コンデンサ３０，３０及び整
流ブロツク３１等から構成される多倍圧整流ブロ
ツクであり、このブロツク２９の入力リード線３
２は前記端子ピン２５の他端に半田等により接続
され、出力リード線３３は絶縁被覆された高圧リ
ード線３４に接続される。そして、このように前
記第１の収納部１２内にコイル部品１８を収納
し、第２の収納部１３内に前記多倍圧整流ブロツ
ク２９を収納する訳であるが、このとき、前記端
子板２６はケース５の底部６に密着当接して切欠
部１１の底面側を閉塞する。 18 is a coil wire 2 that forms a high voltage coil, a low voltage coil, etc. on a coil bobbin 19 as shown in FIG.
0 is wound a predetermined number of times at a predetermined position between each of the flanges 21, 21, 21, and these coil wires 20 are wound around external connection terminal pins 23, 23... implanted in the terminal board 22, and a pair of coil wires 20 are wound. E-shaped core 2
4 and 24 are combined, and the coil bobbin 19 is integrally provided with a terminal plate 26 through which a terminal pin 25 is passed. The terminal plate 26 is provided with a groove 27 in which the engagement protrusion 10 is closely fitted and a cutout part 28 in which the side end 8a of the partition plate 8 engages. A coil wire 20' for deriving the output voltage is wound around one end of the terminal pin 25. Reference numeral 29 denotes a multiplier rectifier block composed of voltage doubler capacitors 30, 30, rectifier block 31, etc., and the input lead wire 3 of this block 29
2 is connected to the other end of the terminal pin 25 by soldering or the like, and the output lead wire 33 is connected to an insulated high voltage lead wire 34. In this way, the coil component 18 is stored in the first storage part 12, and the multi-voltage rectification block 29 is stored in the second storage part 13. At this time, the terminal board 26 closely contacts the bottom 6 of the case 5 and closes the bottom side of the notch 11.
３５は絶縁性の高い合成樹脂により形成された
蓋体であつて、該蓋体３５にはコア２４の一部を
許容する長孔３６と、外部接続用端子ピン２３，
２３…が貫通されるピン貫通孔３７，３７…と、
樹脂注入孔３８と、嵌合片３９及び長片４０が一
体に設けられている。前記嵌合片３９の側端部４
１，４１は前記凹欠部１７の側端部１５，１５に
嵌合する形状になされるとともに、この凹欠部１
７の凹所１６と相俟つて、高圧リード線３４を挾
持する孔を形成する曲面状の凹部４２が形成され
ている。また、前記長片４０にはその長手方向に
沿つて絶縁ケース５に設けられた係合突提１０と
嵌合する溝４３及び仕切板８の側端部８ａと係合
する欠除部４４とが形成されている。 Reference numeral 35 denotes a lid body made of a highly insulating synthetic resin, and the lid body 35 has a long hole 36 that accommodates a portion of the core 24, a terminal pin 23 for external connection,
23... are passed through pin through holes 37, 37...;
A resin injection hole 38, a fitting piece 39, and a long piece 40 are integrally provided. Side end portion 4 of the fitting piece 39
1 and 41 are shaped to fit into the side ends 15 and 15 of the recessed notch 17, and the recessed notch 1
A curved recess 42 is formed together with the recess 16 of No. 7 to form a hole for holding the high voltage lead wire 34 . Further, the long piece 40 has a groove 43 that fits with the engagement protrusion 10 provided on the insulating case 5 along its longitudinal direction, and a cutout part 44 that engages with the side end 8a of the partition plate 8. is formed.
従つて、絶縁ケース５の第１の収納部１２内に
コイル部品１８を収納するとともに第２の収納部
１３内に多倍圧整流ブロツク２９を収納し、前記
蓋体３５によつて絶縁ケース５の開口部を施蓋す
ると、コイル部品１８の端子板２６及び蓋体３５
の長片４０によつて、切欠部１１が完全に閉塞さ
れる。このとき、高圧リード線３４は凹欠部１７
の凹所１６及び嵌合片３９の凹部４２で形成され
る孔を通つてケース５の外部に引出される。 Therefore, the coil component 18 is housed in the first housing part 12 of the insulating case 5, and the multi-voltage rectifying block 29 is housed in the second housing part 13, and the insulating case 5 is closed by the lid 35. When the opening is closed, the terminal plate 26 of the coil component 18 and the lid 35 are closed.
The notch 11 is completely closed by the long piece 40. At this time, the high voltage lead wire 34
It is pulled out of the case 5 through a hole formed by the recess 16 of and the recess 42 of the fitting piece 39 .
そして、このようにして組立てられた後、蓋体
３５の樹脂注入孔３８からシリコン樹脂やウレタ
ン樹脂等の絶縁樹脂をその液面が仕切板８の上端
部８ｂ付近に達するまで第２の収納部１３内に注
入する。 After being assembled in this manner, an insulating resin such as silicone resin or urethane resin is poured into the second storage section from the resin injection hole 38 of the lid body 35 until the liquid level reaches near the upper end 8b of the partition plate 8. Inject into 13.
従つて、前記絶縁樹脂は多倍圧整流ブロツクの
みをモールドし、コイル部品をモールドしないの
で、硬化した絶縁樹脂とコアとの熱膨張係数の差
に起因するコア割れや樹脂の膨張による出力電圧
の温度特性の低下を招くことがない。 Therefore, since the insulating resin is used to mold only the multi-voltage rectifier block and not the coil components, the output voltage may be reduced due to core cracking or resin expansion caused by the difference in thermal expansion coefficient between the cured insulating resin and the core. No deterioration of temperature characteristics occurs.
また、コイル部品１８を堅固に第１の収納部１
２内に収納固定するため、第４図の如く第２の収
納部１３内に注入する絶縁樹脂４５の液面を高め
にしておけば、注入した液状の樹脂４５を真空脱
泡したとき、仕切板８を乗り越えてあふれ出し第
１の収納部１２内に流入するわずかな樹脂が第１
の収納部１２の底面に溜まるので、樹脂を硬化せ
しめたとき、この樹脂によつてコイルボビン１９
が底面に固着される。このときあふれ出た樹脂に
よつてコイル線間の含浸も同時に行なわれる。
尚、前記コイル部品１８の全体を絶縁樹脂でモー
ルドしなくても良いのは、このコイル部品１８で
発生する高圧が1.3KVと比較的低い値であるから
である。 In addition, the coil component 18 is firmly placed in the first storage part 1.
If the liquid level of the insulating resin 45 injected into the second storage part 13 is kept high as shown in Fig. 4, when the injected liquid resin 45 is vacuum degassed, the partition will be fixed. A small amount of resin that overflows over the plate 8 and flows into the first storage section 12 is stored in the first storage section 12.
When the resin is cured, the resin collects on the bottom of the storage section 12 of the coil bobbin 19.
is fixed to the bottom. At this time, the overflowing resin impregnates the coil wires at the same time.
The reason why the coil component 18 does not need to be entirely molded with an insulating resin is that the high voltage generated in the coil component 18 is a relatively low value of 1.3 KV.
第２図は本考案のフライバツクトランスの完成
状態を示す斜視図であつて、絶縁ケース５の外側
には、不要輻射防止用の金属性のシールドケース
４６が施されている。 FIG. 2 is a perspective view showing the completed state of the flyback transformer of the present invention, in which a metallic shielding case 46 for preventing unnecessary radiation is provided on the outside of the insulating case 5.
(ト) 考案の効果
本考案に依れば、硬化した絶縁樹脂とコアとの
熱膨張係数の差に起因するコア割れや樹脂の膨張
による出力電圧の温度特性の低下を防ぐことがで
きる。(g) Effects of the invention According to the invention, it is possible to prevent core cracking caused by the difference in thermal expansion coefficient between the hardened insulating resin and the core, and a decrease in temperature characteristics of the output voltage due to expansion of the resin.
第１図は本考案のフライバツクトランスの一実
施例を示す分解斜視図、第２図はそれを組立てた
状態を示す斜視図、第３図は本考案で使用する部
品の斜視図、第４図は絶縁樹脂を施す方法を説明
するための図、第５図は従来のフライバツクトラ
ンスの断面図である。
５……絶縁ケース、６……底部、７……側壁、
８……仕切板、１１……切欠部、１２……第１の
収納部、１３……第２の収納部、１８……コイル
部品、２３……端子ピン、２６……端子板、２９
……多倍圧整流ブロツク、４５……絶縁樹脂。
Fig. 1 is an exploded perspective view showing one embodiment of the flyback transformer of the present invention, Fig. 2 is a perspective view showing the assembled state, Fig. 3 is a perspective view of parts used in the invention, and Fig. 4 is a perspective view showing an assembled state of the flyback transformer. The figure is a diagram for explaining a method of applying an insulating resin, and FIG. 5 is a sectional view of a conventional flyback transformer. 5... Insulating case, 6... Bottom, 7... Side wall,
8... Partition plate, 11... Notch, 12... First storage section, 13... Second storage section, 18... Coil component, 23... Terminal pin, 26... Terminal board, 29
...Multiple voltage rectifier block, 45...Insulating resin.
Claims (1)
の収納部１２と第２の収納部１３を形成する仕切
板８と、 該仕切板８で形成される切欠部１１と、 前記第１の収納部１２に収納されると共に、前
記切欠部１１の少なくとも前記底部側を閉塞する
端子板２６が設けられたコイル部品１８と、 前記第２の収納部１３に収納されると共に、前
記端子板２６を貫通する端子ピン２５を介して電
気的に接続される多倍圧整流ブロツク２９と、 前記ケース５の開口部を施蓋する蓋体３５と、 この蓋体３５に設けられ、前記端子板２６と共
に前記切欠部１１を閉塞する長片４０と、 前記蓋体３５の孔３８を介して前記第２の収納
部１３内に施された絶縁樹脂４５と、 を備えるフライバツクトランス。[Scope of Claim for Utility Model Registration] An insulating case 5 having an open end, and a first
a partition plate 8 forming a storage section 12 and a second storage section 13; a notch 11 formed by the partition plate 8; A coil component 18 provided with a terminal plate 26 that closes at least the bottom side is housed in the second housing part 13 and is electrically connected via a terminal pin 25 penetrating the terminal plate 26. a multi-voltage rectifying block 29; a lid 35 for closing the opening of the case 5; a long piece 40 provided on the lid 35 and closing the notch 11 together with the terminal plate 26; A flyback transformer comprising: an insulating resin 45 applied inside the second housing part 13 through a hole 38 of a lid body 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984145549U JPH0314953Y2 (en) | 1984-09-26 | 1984-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984145549U JPH0314953Y2 (en) | 1984-09-26 | 1984-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6162591U JPS6162591U (en) | 1986-04-26 |
| JPH0314953Y2 true JPH0314953Y2 (en) | 1991-04-02 |
Family
ID=30703802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984145549U Expired JPH0314953Y2 (en) | 1984-09-26 | 1984-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314953Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005184075A (en) * | 2003-12-16 | 2005-07-07 | Okaya Electric Ind Co Ltd | Noise filter |
| JP2005198147A (en) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | Manufacturing method of noise filter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440429B2 (en) * | 1975-08-20 | 1979-12-03 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440429U (en) * | 1977-08-26 | 1979-03-17 |
-
1984
- 1984-09-26 JP JP1984145549U patent/JPH0314953Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440429B2 (en) * | 1975-08-20 | 1979-12-03 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005184075A (en) * | 2003-12-16 | 2005-07-07 | Okaya Electric Ind Co Ltd | Noise filter |
| JP4593907B2 (en) * | 2003-12-16 | 2010-12-08 | 岡谷電機産業株式会社 | Noise filter and method of manufacturing noise filter |
| JP2005198147A (en) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | Manufacturing method of noise filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6162591U (en) | 1986-04-26 |
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