JPH06163278A - Transformer - Google Patents
TransformerInfo
- Publication number
- JPH06163278A JPH06163278A JP31472992A JP31472992A JPH06163278A JP H06163278 A JPH06163278 A JP H06163278A JP 31472992 A JP31472992 A JP 31472992A JP 31472992 A JP31472992 A JP 31472992A JP H06163278 A JPH06163278 A JP H06163278A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- insulating case
- bottom plate
- filling resin
- opening
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
- H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
- H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は各種電子機器に使用され
るトランスに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer used in various electronic devices.
【０００２】[0002]
【従来の技術】近年、トランスは小型化、高安全化のニ
ーズに対応するため、樹脂充填ケーシング技術が多く利
用されるようになってきた。2. Description of the Related Art In recent years, resin-filled casing technology has come to be widely used in order to meet the needs for miniaturization and high safety of transformers.
【０００３】一般的に、樹脂充填ケーシング技術を用い
たトランスとしては図８に示すものがある。Generally, there is a transformer shown in FIG. 8 which uses a resin-filled casing technology.
【０００４】以下、従来のトランスについて図８を用い
て説明する。図８は従来のトランスの断面図である。図
８において１はコイルボビン、１ａは端子板、２はコイ
ル、３は磁心、４は絶縁ケース、５は充填樹脂、６は底
板、７は底板と絶縁ケースの嵌合部である。A conventional transformer will be described below with reference to FIG. FIG. 8 is a sectional view of a conventional transformer. In FIG. 8, 1 is a coil bobbin, 1a is a terminal plate, 2 is a coil, 3 is a magnetic core, 4 is an insulating case, 5 is a filling resin, 6 is a bottom plate, and 7 is a fitting portion between the bottom plate and the insulating case.
【０００５】図８において、引き出し線を接続する端子
ピン８を植設した端子板１ａを一端に有するコイルボビ
ン１にコイル２を巻装し、磁心３を組み込んでトランス
本体を完成させる。次に一面に開口を有し、この開口部
の近傍に段部を有した絶縁ケース４に充填樹脂５を充填
した状態で、予め準備しておき、この準備された絶縁ケ
ース４に上記トランス本体を上方から組み込んだ後、充
填樹脂５を乾燥硬化させた後、底板６を絶縁ケース４の
開口部で嵌合して完成させる。In FIG. 8, a coil 2 is wound around a coil bobbin 1 having a terminal plate 1a in which a terminal pin 8 for connecting a lead wire is planted at one end, and a magnetic core 3 is incorporated to complete a transformer body. Next, an insulating case 4 having an opening on one surface and a step near the opening is filled with a filling resin 5, and is prepared in advance. Is assembled from above, the filling resin 5 is dried and hardened, and then the bottom plate 6 is fitted in the opening of the insulating case 4 to complete.
【０００６】また、図９は他の従来のトランスの断面図
であり、図８と異なる点はコイルボビン１にボビン義足
部１ｂを有している点である。FIG. 9 is a sectional view of another conventional transformer, and the point different from FIG. 8 is that the coil bobbin 1 has a bobbin artificial leg portion 1b.
【０００７】さらに、図１０はトランスをプリント基板
９に実装し、半田１０で固定したときの状態を示してい
る。Further, FIG. 10 shows a state in which the transformer is mounted on the printed board 9 and fixed by the solder 10.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、上記従
来の図８の構成では、トランス本体と絶縁ケース４は充
填樹脂５のみで固定されているため、図１０に示すよう
にプリント基板８に実装時、落下衝撃或いは充填樹脂５
の熱膨脹収縮で絶縁ケース４の内部のトランス本体が可
動し、プリント基板８の箔はがれ等が発生するという信
頼性上の問題があった。However, in the conventional configuration of FIG. 8 described above, since the transformer body and the insulating case 4 are fixed only by the filling resin 5, when mounted on the printed circuit board 8 as shown in FIG. , Drop impact or filling resin 5
Due to the thermal expansion and contraction, the transformer main body inside the insulating case 4 moves, and the foil peeling of the printed circuit board 8 occurs.
【０００９】また、絶縁ケース４と底板６がツメ等で嵌
合されており、機械的に固定されているため、上下方向
の寸法は絶縁ケース４と底板６の組み合せ寸法で決まる
こととなり、トランス完成時、充填樹脂５の熱膨脹収縮
により、底板６から突き出す端子ピンの長さが非常にば
らつくという製造品質上の欠点も有していた。Further, since the insulating case 4 and the bottom plate 6 are fitted with each other by a claw or the like and are mechanically fixed, the vertical size is determined by the combined size of the insulating case 4 and the bottom plate 6, and the transformer At the time of completion, there was also a manufacturing quality defect that the length of the terminal pin protruding from the bottom plate 6 varied greatly due to thermal expansion and contraction of the filling resin 5.
【００１０】さらにトランス本体と絶縁ケース４は充填
樹脂５のみで固定され、および絶縁ケース４と底板６が
ツメ等で嵌合される構造としているため、トランス完成
時、充填樹脂５の熱膨脹収縮により、トランス本体が可
動して底板６が取り付けにくくなるという製造上の課題
も有していた。Further, since the transformer main body and the insulating case 4 are fixed only by the filling resin 5 and the insulating case 4 and the bottom plate 6 are fitted by the claws or the like, when the transformer is completed, the filling resin 5 is expanded and contracted due to thermal expansion and contraction. However, there is also a manufacturing problem that the transformer body moves and the bottom plate 6 becomes difficult to attach.
【００１１】また、従来の図９の構成では実装時の落下
衝撃によるトランス本体の可動はないものの充填樹脂５
の熱膨脹収縮に起因する問題に関しては、トランス本体
の可動がない分、むしろ顕著に現れる傾向がある。つま
り、プリント基板への実装時の箔はがれ発生、端子ピン
の長さのばらつき大、底板が取り付けにくくなること等
はもちろん、底板のはがれ、嵌合部の爪折れ発生等の製
造上の問題も発生するという大きな課題を有していた。Further, in the conventional configuration of FIG. 9, the filling resin 5 is used although the transformer body does not move due to a drop impact during mounting.
With respect to the problem caused by the thermal expansion and contraction of (1), there is a tendency that the transformer body is rather remarkable because the transformer body is not moved. In other words, not only is there peeling of the foil during mounting on the printed circuit board, there are large variations in the length of the terminal pins, it is difficult to attach the bottom plate, etc. It had a big problem that it occurred.
【００１２】本発明は上記課題を解決するもので、トラ
ンスを樹脂充填ケーシングしても箔はがれの発生がな
く、端子ピンの長さのばらつきもなく、底板の取り付け
も容易で底板はずれもないトランスを安価に提供するこ
とを目的とする。The present invention solves the above-mentioned problems. Even if the transformer is filled with resin, the foil does not peel off, the terminal pins do not vary in length, the bottom plate can be easily attached, and the bottom plate does not slip. The purpose is to provide at low cost.
【００１３】[0013]
【課題を解決するための手段】上記目的を達成するため
に本発明のトランスは、一面に開口部を有し、かつ開口
部の近傍に段部を有した絶縁ケースと、巻線を巻装する
とともに一端にその巻線の引き出し線を接続する端子ピ
ンを植設し、かつ上記絶縁ケースの段部に係合される端
子板を一端に設けたコイルボビンに磁心を組み込んで構
成したトランス本体と、上記絶縁ケースの段部に端子板
のみが係合されるように組み込んだトランス本体の周囲
に充填された充填樹脂とからなり、上記端子板と機械的
に結合されるとともに絶縁ケースの開口部に固定させな
い底板を設け、かつ上記底板の底面を絶縁ケースの開口
端面より外方に突き出させた構成としたものである。In order to achieve the above object, a transformer of the present invention has an insulating case having an opening on one surface and a step near the opening, and a winding. A transformer main body constructed by implanting a terminal pin for connecting the lead wire of the winding wire at one end, and incorporating a magnetic core in a coil bobbin provided at one end with a terminal plate engaged with the step of the insulating case. , A filling resin filled around the transformer body assembled so that only the terminal plate is engaged with the step portion of the insulating case, and is mechanically coupled to the terminal plate and the opening portion of the insulating case is formed. A bottom plate which is not fixed to the insulating case is provided, and the bottom surface of the bottom plate is projected outward from the opening end surface of the insulating case.
【００１４】[0014]
【作用】上記構成によって、トランス本体と底板が機械
的に一体化され、絶縁ケースは充填樹脂のみで接着さ
れ、上下方向に対してはトランス本体と絶縁ケースは自
由な状態となるため、プリント基板実装時、落下衝撃、
或いは充填樹脂の熱膨脹収縮応力によるプリント基板の
箔はがれ、および底板のはずれ、嵌合部の爪折れ、底板
が取り付けにくくなるということもなくなる。With the above structure, the transformer main body and the bottom plate are mechanically integrated, the insulating case is bonded only by the filling resin, and the transformer main body and the insulating case are free in the vertical direction. When mounting, drop impact,
Alternatively, the peeling of the foil of the printed circuit board due to the thermal expansion and contraction stress of the filling resin, the bottom plate coming off, the claws of the fitting portion breaking, and the bottom plate becoming difficult to attach are eliminated.
【００１５】また、底板の底面が絶縁ケースより外方に
突き出しているので、充填樹脂の熱膨脹収縮によるトラ
ンス本体の可動があっても寸法を吸収でき、端子ピンの
突き出し長さはばらつかなくなる。Further, since the bottom surface of the bottom plate projects outward from the insulating case, the dimension can be absorbed even if the transformer main body is moved due to thermal expansion and contraction of the filling resin, and the protruding length of the terminal pin does not vary.
【００１６】[0016]
【実施例】以下、本発明の一実施例を図面を参照しなが
ら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１７】図１は本発明の第１の実施例を示すトラン
スの断面図である。図１において、図８における従来と
同一の構成部分には同一番号を付して詳細な説明を省略
する。FIG. 1 is a sectional view of a transformer showing a first embodiment of the present invention. In FIG. 1, the same components as those of the related art shown in FIG. 8 are denoted by the same reference numerals, and detailed description thereof will be omitted.
【００１８】すなわち、図１に示すように、従来例と大
きく異なる点はコイルボビンの端子板部１ａに底板６と
の嵌合部１１を設けて結合した点、絶縁ケース４と底板
６の間に隙間部１２を設けて固定されない構造とした
点、底板６の底面を絶縁ケース４の開口端面より外方に
突き出させ絶縁ケース４と底板６の底面に段差１３を設
けた点である。That is, as shown in FIG. 1, the point that is greatly different from the conventional example is that the terminal plate portion 1a of the coil bobbin is provided with a fitting portion 11 for fitting with the bottom plate 6, and that it is connected between the insulating case 4 and the bottom plate 6. The gap 12 is provided so as not to be fixed, and the bottom surface of the bottom plate 6 is projected outward from the open end surface of the insulating case 4, and a step 13 is provided between the insulating case 4 and the bottom surface of the bottom plate 6.
【００１９】図１において、引き出し線を接続する端子
ピン８を植設した端子板１ａを一端に有するコイルボビ
ン１にコイル２を巻装し、磁心３を組み込んでトランス
本体を完成させる。次に、底板６を端子板部１ａに組み
込み、嵌合部１１により、機械的に結合する。そして、
一面に開口を有し、この開口部の近傍に段部を有した絶
縁ケース４に充填樹脂５を充填した状態で、予め準備し
ておき、この準備された絶縁ケース４に上記トランス本
体を底板６を機械的に結合した状態で上方から組み込ん
だ後、底板６を図１の上方から、成形品、磁心等が破壊
しない程度の適当な圧力を加えて押さえ、充填樹脂５を
乾燥硬化させてトランスを完成させる。この場合、圧力
を上方から加えても絶縁ケース４と底板６の段差部分１
３が確保できるように設計値を設定しておくこととす
る。In FIG. 1, a coil 2 is wound around a coil bobbin 1 having a terminal plate 1a in which a terminal pin 8 for connecting a lead wire is planted at one end, and a magnetic core 3 is incorporated to complete a transformer body. Next, the bottom plate 6 is assembled in the terminal plate portion 1a and mechanically coupled by the fitting portion 11. And
An insulating case 4 having an opening on one surface and a step portion near the opening is preliminarily prepared in a state of being filled with a filling resin 5, and the transformer main body is provided on the prepared insulating case 4 with a bottom plate. After assembling 6 from above in a mechanically coupled state, the bottom plate 6 is pressed from above in FIG. 1 by applying an appropriate pressure so that the molded product, magnetic core, etc. are not destroyed, and the filling resin 5 is dried and cured. Complete the transformer. In this case, even if pressure is applied from above, the step portion 1 between the insulating case 4 and the bottom plate 6
Design values should be set so that 3 can be secured.
【００２０】以上のように本実施例によれば、端子板１
ａ及びこの端子板１ａと機械的に結合された底板６と絶
縁ケース４の開口部とは固定させないで、かつ底板６の
底面を絶縁ケース４の開口端面より外方に突き出させる
構成としたため、トランス本体部と絶縁ケース４とが自
由な状態となるとともに、トランス上下方向の寸法はト
ランス本体と底板６の組み合せ寸法で決まることとな
り、プリント基板実装時の落下衝撃、或いは充填樹脂の
熱収縮応力によるプリント基板箔はがれ等の信頼性上の
問題、底板６のはずれ、嵌合部の爪折れ、端子ピン８の
突き出し長さのばらつき発生、底板が取り付けにくくな
る等、製造上の問題が発生しなくなる。As described above, according to this embodiment, the terminal board 1
a and the bottom plate 6 mechanically coupled to the terminal plate 1a and the opening of the insulating case 4 are not fixed, and the bottom surface of the bottom plate 6 is projected outward from the opening end surface of the insulating case 4. The transformer main body and the insulating case 4 are in a free state, and the size in the vertical direction of the transformer is determined by the combined size of the transformer main body and the bottom plate 6, resulting in drop impact during mounting of the printed circuit board or heat shrinkage stress of the filling resin. There are problems in manufacturing such as reliability problems such as peeling of printed circuit board foil, detachment of the bottom plate 6, broken nails in the fitting portion, variation in protruding length of the terminal pins 8, and difficulty in mounting the bottom plate. Disappear.
【００２１】図２〜図４は、本発明の第２の実施例を示
すトランスの図である。図２において１４は絶縁ケース
４の中心線上の凹部、１５は底板６の中心線上の凸部を
示している。また、図３は絶縁ケース４の凹部１４の位
置を示す下面図、図４は底板６の凸部１５の位置を示す
下面図である。2 to 4 are diagrams of a transformer showing a second embodiment of the present invention. In FIG. 2, 14 indicates a concave portion on the center line of the insulating case 4, and 15 indicates a convex portion on the center line of the bottom plate 6. 3 is a bottom view showing the position of the concave portion 14 of the insulating case 4, and FIG. 4 is a bottom view showing the position of the convex portion 15 of the bottom plate 6.
【００２２】この実施例によれば、絶縁ケース４の開口
面と底板６のそれぞれの中心線上に位置決めをするため
の凹部１４と凸部１５による位置決め部を設けているた
め、絶縁ケース４と底板６の材質が異なった場合の熱膨
脹収縮による寸法変化差が生じたとき、或いはトランス
本体を絶縁ケース４に斜めに組み込んだときでも絶縁ケ
ース４の外周面に対して端子ピンの位置ずれが発生しな
いという効果が生まれ、トランス完成後、基板に実装す
るとき絶縁ケース４をチャックしたときの実装性が向上
する。According to this embodiment, since the positioning portion is formed by the concave portion 14 and the convex portion 15 for positioning on the center line of each of the opening surface of the insulating case 4 and the bottom plate 6, the insulating case 4 and the bottom plate are provided. Even if there is a difference in dimensional change due to thermal expansion and contraction when the material of 6 is different, or when the transformer body is obliquely incorporated into the insulating case 4, the terminal pins are not displaced with respect to the outer peripheral surface of the insulating case 4. After the transformer is completed, the mountability when the insulating case 4 is chucked when mounted on the substrate is improved.
【００２３】また、絶縁ケース４の凹部１４と底板６の
凸部１５の高さ方向に隙間を設けることにより、充填樹
脂５の熱膨脹収縮応力による寸法変化を吸収できるとい
う効果も得られる。さらに位置決め部の形状をテーパ状
にしてやる等の工夫をしてやることにより、底板６の挿
入性も向上する。Further, by providing a gap in the height direction between the concave portion 14 of the insulating case 4 and the convex portion 15 of the bottom plate 6, it is possible to absorb the dimensional change of the filling resin 5 due to the thermal expansion / contraction stress. Furthermore, the insertability of the bottom plate 6 is improved by devising such as making the shape of the positioning portion tapered.
【００２４】図５は本発明の第３の実施例を示すトラン
スの断面図である。この図５のものは絶縁ケース４の内
面に複数の凹凸部１６を設けたものであり、その他の構
成は基本的には図１〜図４に示すトランスと同じであ
る。FIG. 5 is a sectional view of a transformer showing a third embodiment of the present invention. In FIG. 5, a plurality of concave and convex portions 16 are provided on the inner surface of the insulating case 4, and other configurations are basically the same as those of the transformer shown in FIGS.
【００２５】この実施例によれば、凹凸部１６により絶
縁ケース４と充填樹脂５の結合が強化されるため、プリ
ント基板にトランスを実装する時、絶縁ケース４をチャ
ックしてもトランス本体が抜けにくくなるという効果が
生まれる。According to this embodiment, since the connection between the insulating case 4 and the filling resin 5 is strengthened by the uneven portion 16, when the transformer is mounted on the printed circuit board, the transformer body is pulled out even if the insulating case 4 is chucked. The effect of becoming difficult is born.
【００２６】図６，図７は本発明の第４，第５の実施例
を示すトランスの断面図である。図６に示すものは、図
１における底板６と端子板１ａが一体化されたものであ
り、その他の構成は図１と同じである。また、図７に示
すものは図５における底板６と端子板１ａが一体化され
たものであり、その他の構成は図５と同じである。6 and 7 are sectional views of a transformer showing the fourth and fifth embodiments of the present invention. In FIG. 6, the bottom plate 6 and the terminal plate 1a in FIG. 1 are integrated, and other configurations are the same as those in FIG. Further, what is shown in FIG. 7 is one in which the bottom plate 6 and the terminal plate 1a in FIG. 5 are integrated, and the other configurations are the same as those in FIG.
【００２７】この実施例によれば、底板６と端子板１ａ
が一体化されているため、底板６が不要となり、部品点
数が削減でき、製造原価を削減できる等の効果が生まれ
る。According to this embodiment, the bottom plate 6 and the terminal plate 1a are
, The bottom plate 6 is unnecessary, the number of parts can be reduced, and the manufacturing cost can be reduced.
【００２８】[0028]
【発明の効果】以上のように本発明のトランスによれ
ば、次の効果が得られる。As described above, according to the transformer of the present invention, the following effects can be obtained.
【００２９】（１）プリント基板実装時の落下衝撃、或
いは充填樹脂の熱収縮応力によるプリント基板箔はがれ
等、信頼性上の問題が発生しなくなる。(1) The reliability problem such as the drop impact when mounting the printed circuit board or the peeling of the printed circuit board foil due to the heat shrinkage stress of the filling resin does not occur.
【００３０】（２）底板のはずれ、嵌合部の爪折れ、端
子ピンの突き出し長さのばらつき発生、底板が取り付け
にくくなる等、製造上の問題が発生しなくなる。(2) There are no problems in manufacturing such as the bottom plate coming off, the claws of the fitting portion broken, the protruding lengths of the terminal pins varying, and the bottom plate becoming difficult to attach.
【００３１】また、トランスの端子板または底板に絶縁
ケースの開口面に対して位置決めする位置決め部を設け
ることにより、絶縁ケース外周面に対して端子ピンの位
置ずれが発生しなくなり、トランスを実装するときの実
装性が向上するという効果が得られる。Further, by providing the terminal plate or the bottom plate of the transformer with the positioning portion for positioning with respect to the opening surface of the insulating case, the displacement of the terminal pins does not occur with respect to the outer peripheral surface of the insulating case, and the transformer is mounted. In this case, it is possible to improve the mountability.
【００３２】さらに、絶縁ケースの内面に凹凸部を設
け、充填樹脂との結合を強化することにより、プリント
基板にトランスを実装する時、絶縁ケースをチャックし
てもトランス本体が抜けにくくなるという効果が得られ
る。Furthermore, by providing a concave-convex portion on the inner surface of the insulating case and strengthening the coupling with the filling resin, it is difficult to pull out the transformer body even when the insulating case is chucked when the transformer is mounted on the printed circuit board. Is obtained.
【００３３】また、底板と端子板を一体化することによ
り、部品点数が削減でき、製造原価を削減できるという
効果が得られる。By integrating the bottom plate and the terminal plate, the number of parts can be reduced and the manufacturing cost can be reduced.
【００３４】以上のように多大な効果が生まれ、高度な
樹脂充填ケーシングを実現することが可能となるため、
小型化、高安全化の市場ニーズに対応できる高信頼かつ
高品質のトランスを安価に提供でき、工業的価値の大な
るものである。As described above, a great effect is produced, and it becomes possible to realize a high-grade resin-filled casing.
Highly reliable and high-quality transformers that can meet the market needs for downsizing and high safety can be provided at low cost, which is of great industrial value.
【図１】本発明の第１の実施例によるトランスの断面図FIG. 1 is a sectional view of a transformer according to a first embodiment of the present invention.
【図２】本発明の第２の実施例によるトランスの外観図FIG. 2 is an external view of a transformer according to a second embodiment of the present invention.
【図３】同実施例における絶縁ケースの下面図FIG. 3 is a bottom view of the insulating case in the example.
【図４】同実施例における底板の下面図FIG. 4 is a bottom view of the bottom plate in the embodiment.
【図５】本発明の第３の実施例によるトランスの半断面
正面図FIG. 5 is a half sectional front view of a transformer according to a third embodiment of the present invention.
【図６】本発明の第４の実施例によるトランスの断面図FIG. 6 is a sectional view of a transformer according to a fourth embodiment of the present invention.
【図７】本発明の第５の実施例によるトランスの半断面
正面図FIG. 7 is a half sectional front view of a transformer according to a fifth embodiment of the present invention.
【図８】従来のトランスの断面図FIG. 8 is a sectional view of a conventional transformer.
【図９】別の従来のトランスの断面図FIG. 9 is a sectional view of another conventional transformer.
【図１０】トランスをプリント基板に実装したときの断
面図FIG. 10 is a sectional view when the transformer is mounted on a printed circuit board.
１ コイルボビン １ａ 端子板 ２ コイル ３ 磁心 ４ 絶縁ケース ５ 充填樹脂 ６ 底板 ８ 端子ピン １１ 嵌合部 １２ 隙間部 １３ 段差 １４ 凹部 １５ 凸部 １６ 凹凸部 DESCRIPTION OF SYMBOLS 1 coil bobbin 1a terminal plate 2 coil 3 magnetic core 4 insulating case 5 filling resin 6 bottom plate 8 terminal pin 11 fitting part 12 gap part 13 step 14 concave part 15 convex part 16 uneven part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 橋本 直樹 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naoki Hashimoto 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (4)
近傍に段部を有した絶縁ケースと、巻線を巻装するとと
もに一端にその巻線の引き出し線を接続する端子ピンを
植設し、かつ上記絶縁ケースの段部に係合される端子板
を一端に設けたコイルボビンに磁心を組み込んで構成し
たトランス本体と、上記絶縁ケースの段部に端子板のみ
が係合されるように組み込んだトランス本体の周囲に充
填された充填樹脂とからなり、上記端子板と機械的に結
合されるとともに絶縁ケースの開口部に固定させない底
板を設け、かつ上記底板の底面を絶縁ケースの開口端面
より外方に突き出させてなるトランス。1. An insulating case having an opening on one surface and a step near the opening, and a terminal pin for winding a winding and connecting a lead wire of the winding to one end. A transformer body that is constructed by incorporating a magnetic core into a coil bobbin that is provided with a terminal plate at one end that is engaged with the stepped portion of the insulating case, and only the terminal plate is engaged with the stepped portion of the insulating case. The bottom plate of the insulating case, which is made of a filling resin filled around the transformer body and is mechanically coupled to the terminal plate and is not fixed to the opening of the insulating case, is provided. A transformer that protrudes outward from the opening end face.
に対して位置決めする位置決め部を設けた請求項１記載
のトランス。2. The transformer according to claim 1, wherein the terminal plate or the bottom plate is provided with a positioning portion for positioning with respect to the opening surface of the insulating case.
項１記載のトランス。3. The transformer according to claim 1, wherein an uneven portion is provided on the inner surface of the insulating case.
載のトランス。4. The transformer according to claim 1, wherein the bottom plate and the terminal plate are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4314729A JP2770685B2 (en) | 1992-11-25 | 1992-11-25 | Trance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4314729A JP2770685B2 (en) | 1992-11-25 | 1992-11-25 | Trance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06163278A true JPH06163278A (en) | 1994-06-10 |
| JP2770685B2 JP2770685B2 (en) | 1998-07-02 |
Family
ID=18056874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4314729A Expired - Fee Related JP2770685B2 (en) | 1992-11-25 | 1992-11-25 | Trance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2770685B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144278A (en) * | 1997-02-18 | 2000-11-07 | Canon Kabushiki Kaisha | Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit |
| DE10314567B4 (en) * | 2002-04-01 | 2011-08-11 | DENSO CORPORATION, Aichi-pref. | Ignition device for an internal combustion engine |
| US8237532B2 (en) * | 2008-12-11 | 2012-08-07 | Sanken Electric Co., Ltd. | Electronic circuit device |
| CN103606434A (en) * | 2013-10-25 | 2014-02-26 | 姜斌峰 | Inductor |
-
1992
- 1992-11-25 JP JP4314729A patent/JP2770685B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144278A (en) * | 1997-02-18 | 2000-11-07 | Canon Kabushiki Kaisha | Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit |
| US6437673B1 (en) | 1997-02-18 | 2002-08-20 | Canon Kabushiki Kaisha | Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit |
| DE10314567B4 (en) * | 2002-04-01 | 2011-08-11 | DENSO CORPORATION, Aichi-pref. | Ignition device for an internal combustion engine |
| US8237532B2 (en) * | 2008-12-11 | 2012-08-07 | Sanken Electric Co., Ltd. | Electronic circuit device |
| CN103606434A (en) * | 2013-10-25 | 2014-02-26 | 姜斌峰 | Inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2770685B2 (en) | 1998-07-02 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |