JPH0481322B2 - - Google Patents
Info
- Publication number
- JPH0481322B2 JPH0481322B2 JP59203403A JP20340384A JPH0481322B2 JP H0481322 B2 JPH0481322 B2 JP H0481322B2 JP 59203403 A JP59203403 A JP 59203403A JP 20340384 A JP20340384 A JP 20340384A JP H0481322 B2 JPH0481322 B2 JP H0481322B2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- end flange
- magnetic material
- transformer
- around
- 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
- 239000000696 magnetic material Substances 0.000 claims description 34
- 238000009413 insulation Methods 0.000 description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/325—Coil bobbins
-
- 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
- H01F2005/025—Coils wound on non-magnetic supports, e.g. formers wound on coaxial arrangement of two or more formers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種の音響機器、映像機器、産業機器
などに使用する変成器に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a transformer used in various audio equipment, video equipment, industrial equipment, etc.
従来例の構成とその問題点
近年電子機器は軽薄短小の言葉に代表されるよ
うに市場ニーズが多様化され変成器も同様の要求
を受けている。とりわけ安全規格の適合及び低コ
ストが要求されている。Conventional configurations and their problems In recent years, market needs for electronic equipment have diversified, as exemplified by the need for light, thin, short, and small devices, and transformers are also receiving similar demands. In particular, compliance with safety standards and low cost are required.
以下図面を参照しながら上述した状来の変成器
について説明する。 The conventional transformer described above will be explained below with reference to the drawings.
第１図は従来の変成器のボビン、第２図は変成
器の断面図を示すものである。１は上側ボビン、
２は下側ボビン、３は磁性材、４は下側ボビン２
に巻回された１次コイル、５は上側ボビン１に巻
回された２次コイル、６は１次コイル４及び２次
コイル５のリード線を巻付け半田付されたピン端
子である。以上のように構成された変成器につい
て説明する。下側ボビン２に１次コイル４を巻装
しリード線をリード引出し溝７を通して下側ボビ
ン２の下端鍔８に埋植されたピン端子６に巻付け
られる。その後上側ボビン１を、巻装した下側ボ
ビン２に上部から挿入嵌合する。そしてその嵌合
した上側ボビン１に２次コイル５を巻回しリード
線をリード溝９を通して下側ボビン２の下端鍔８
に埋植されたピン端子６に巻付けられる。 FIG. 1 shows a bobbin of a conventional transformer, and FIG. 2 shows a sectional view of the transformer. 1 is the upper bobbin,
2 is the lower bobbin, 3 is the magnetic material, 4 is the lower bobbin 2
5 is a secondary coil wound around the upper bobbin 1, and 6 is a pin terminal around which the lead wires of the primary coil 4 and secondary coil 5 are wound and soldered. The transformer configured as above will be explained. The primary coil 4 is wound around the lower bobbin 2, and the lead wire is passed through the lead-out groove 7 and wound around the pin terminal 6 embedded in the lower end collar 8 of the lower bobbin 2. Thereafter, the upper bobbin 1 is inserted and fitted into the wound lower bobbin 2 from above. Then, the secondary coil 5 is wound around the fitted upper bobbin 1, and the lead wire is passed through the lead groove 9 into the lower end collar 8 of the lower bobbin 2.
It is wound around the pin terminal 6 implanted in the.
以後、半田付け、磁性材３の挿入、磁性材の固
定の工程を得て変成器が完成される。この変成器
は電気用品、UL、CSA等の規格適合を目的とし
た構造で磁性が異なる充電部相互間、充電部とア
ースする恐れのある非充電部間には絶縁距離が規
制されている。絶縁構造を第２図を用いて説明す
る。１次コイル４と磁性材３の絶縁構造の絶縁距
離はａ＋ｂの値であり、１次コイル４と２次コイ
ル５の絶縁構造の絶縁距離はc′＋ｄの値となる。
１次コイル４が接続されたピン端子６と磁性材３
との絶縁距離はｃの値となるものである。 Thereafter, the transformer is completed by soldering, inserting the magnetic material 3, and fixing the magnetic material. This transformer is designed to comply with standards such as electrical appliances, UL, and CSA, and the insulation distance is regulated between live parts with different magnetic properties, and between live parts and non-live parts that may be grounded. The insulation structure will be explained using FIG. 2. The insulation distance between the primary coil 4 and the magnetic material 3 is a value of a+b, and the insulation distance between the primary coil 4 and the secondary coil 5 is a value of c'+d.
Pin terminal 6 to which primary coil 4 is connected and magnetic material 3
The insulation distance between the two is the value of c.
ところがIEC380等の規格においては１次コイ
ル４と２次コイル５との間及び１次コイル４と磁
性材３との間の絶縁距離がそれぞれ８mm以上必要
とする。従来の構造は上記に説明したように絶縁
距離の確保が寸法困難である。仮に実現するため
にはａとｂの値を大きくとり、かつc′とｄの寸法
を大きくとり、更にｃの寸法を大きくとる必要が
ある。いわゆる変成器容量に対してボビン寸法が
大きくなる訳で使用磁性材３も大きくなり必然的
に変成器形状が大きく、かつ重く、コストも高く
なる欠点を有していた。 However, standards such as IEC380 require that the insulation distance between the primary coil 4 and the secondary coil 5 and between the primary coil 4 and the magnetic material 3 be 8 mm or more, respectively. As explained above, in the conventional structure, it is difficult to ensure sufficient insulation distance. In order to achieve this, it is necessary to increase the values of a and b, increase the dimensions of c' and d, and further increase the dimension of c. Since the size of the bobbin becomes large relative to the so-called transformer capacity, the size of the magnetic material 3 used also becomes large, which inevitably results in the transformer being large in shape, heavy, and expensive.
発明の目的
本発明は上記欠点に鑑み、安全規格を満足でき
る絶縁構造で、小型、低コストの変成器を提供す
ることを目的とするものである。OBJECTS OF THE INVENTION In view of the above drawbacks, it is an object of the present invention to provide a small, low-cost transformer with an insulation structure that satisfies safety standards.
発明の構成
この目的を達成するために本発明の変成器は、
下側ボビンの上端鍔の上面に切穴溝を設け、かつ
下端鍔の鉄心片側面に対する絶縁壁を設け更に下
端鍔両側面に段差を形成し上部より上側ボビンの
上端鍔内壁に下側ボビンの上端鍔の切欠溝に相対
する突起を設け、かつ下端鍔の両側面に下側ボビ
ンの下端鍔両側面に段差に相対する絶縁壁を設け
た上側ボビンを挿入嵌合し、磁性材を組込み、下
側ボビンの下端鍔の磁性材の片側面に対する絶縁
壁に絶縁板をはめ込む構成とし、この構成とする
ことによつて１次コイルと２次コイル及び１次コ
イルと磁性材との絶縁距離が確保でき安全規格適
合の小型の変成器の実現が可能となる。Structure of the Invention To achieve this object, the transformer of the present invention comprises:
A cut hole groove is provided on the upper surface of the upper end flange of the lower bobbin, and an insulating wall is provided on one side of the iron core of the lower end flange, and a step is formed on both sides of the lower end flange. An upper bobbin having a protrusion facing the notch groove of the upper end flange and an insulating wall facing the step on both sides of the lower end flange of the lower bobbin is inserted and fitted, and a magnetic material is incorporated. An insulating plate is fitted into an insulating wall on one side of the magnetic material of the lower end flange of the lower bobbin, and by this structure, the insulation distance between the primary coil and the secondary coil and between the primary coil and the magnetic material is reduced. It becomes possible to realize a small transformer that is secure and conforms to safety standards.
実施例の説明
以下本発明の一実施例について図面を参照しな
がら説明する。第３図Ａ，Ｂは下側ボビンの上端
鍔及び下端鍔から見た斜視図、第４図Ａ，Ｂは上
記ボビンの上端鍔及び下端鍔から見た斜視図、第
５図は絶縁板の斜視図、第６図は本発明の変成器
の組立た状態に斜視図、第７図は本発明の変成器
の側面より見た断面図、第８図は本発明の変成器
の正面より見た断面図、第９図Ａ〜Ｄは各部分の
絶縁構造の拡大断面図を示すものである。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Figures 3A and B are perspective views as seen from the upper and lower flanges of the lower bobbin, Figures 4A and B are perspective views as seen from the upper and lower flanges of the bobbin, and Figure 5 is a perspective view of the insulating plate. FIG. 6 is a perspective view of the transformer of the present invention in an assembled state, FIG. 7 is a sectional view of the transformer of the present invention seen from the side, and FIG. 8 is a front view of the transformer of the present invention. The cross-sectional views shown in FIGS. 9A to 9D are enlarged cross-sectional views of the insulation structure of each part.
下側ボビン１０は中心に磁性材３０を貫通させ
るとももに外周に１次コイル２６を巻回する筒状
部１３を有し、この筒状部１３の上下端外周部に
上端鍔１４及び下端鍔１５を設け、この上端鍔１
４の上面部中央全周に切欠溝１６を設ける。又下
端鍔１５の下面にはピン端子１８が植設され、か
つ磁性材３０の片側面に対する絶縁壁１９をピン
端子１８を取り囲むように設ける。更に下端鍔１
５の磁性材３０に対しての両側面に段差１７を設
け、又筒状部１３の下端鍔側には段差２８を設け
る。上側ボビン１１は下側ボビン１０の上端鍔部
１４から下方全体を嵌合させるとともに外周に２
次コイル２７を巻回する筒状部２０を有し、この
筒状部２０の上端鍔２１の内壁に下側ボビン１０
の上端鍔１４に設けた切欠溝１６に相対する突起
２２を全周に設け、更に下端鍔２３に磁性材３０
に対して両側面に絶縁壁２４を設ける。以上のよ
うな下側ボビン１０に上側ボビン１１を挿入嵌合
することによつて下側ボビン１０の上端鍔１４に
設けた切欠溝１６の中に上側ボビン１１の上端部
２１の内壁に設けた突起２２が入り込む。又下側
鍔１５の磁性材３０に対しての両側端に設けた段
差１７には上側ボビン１１の下端鍔２３の磁性材
３０に対しての両側端部の絶縁壁２４が入り込む
構造となる。 The lower bobbin 10 has a cylindrical part 13 through which a magnetic material 30 passes through the center and around which a primary coil 26 is wound. A tsuba 15 is provided, and this upper end tsuba 1
A notch groove 16 is provided all around the center of the upper surface of the 4. Further, a pin terminal 18 is implanted on the lower surface of the lower end collar 15, and an insulating wall 19 is provided on one side of the magnetic material 30 so as to surround the pin terminal 18. Furthermore, lower end tsuba 1
A step 17 is provided on both sides of the magnetic material 30 of No. 5, and a step 28 is provided on the lower end flange side of the cylindrical portion 13. The upper bobbin 11 is fitted with the entire lower part from the upper end flange 14 of the lower bobbin 10, and has two holes on the outer periphery.
It has a cylindrical part 20 around which a secondary coil 27 is wound, and the lower bobbin 10 is attached to the inner wall of the upper end collar 21 of this cylindrical part 20.
A protrusion 22 facing the notch groove 16 provided on the upper end flange 14 is provided around the entire circumference, and a magnetic material 30 is further provided on the lower end flange 23.
Insulating walls 24 are provided on both sides. By inserting and fitting the upper bobbin 11 into the lower bobbin 10 as described above, a cutout groove 16 is formed on the inner wall of the upper end portion 21 of the upper bobbin 11 in the notch groove 16 provided on the upper end collar 14 of the lower bobbin 10. The protrusion 22 enters. Insulating walls 24 at both ends of the lower end collar 23 of the upper bobbin 11 relative to the magnetic material 30 are inserted into the steps 17 provided at both ends of the lower collar 15 relative to the magnetic material 30.
その後、リード線２９をピン端子１８に接続し
半田付けし、磁性材３０の組立てを行い、その後
下側ボビン１０の下端鍔１５の下面に設けた絶縁
壁１９と磁性材３０の片側面との間に第５図のよ
うなＬ字形状の絶縁板１２に設けたコの字型の形
状の係合片で形成される切欠き２５をはめ込むも
のである。組立図は第６図に示す。 Thereafter, the lead wire 29 is connected to the pin terminal 18 and soldered to assemble the magnetic material 30, and then the insulating wall 19 provided on the lower surface of the lower end collar 15 of the lower bobbin 10 and one side of the magnetic material 30 are connected. A notch 25 formed by a U-shaped engagement piece provided on the L-shaped insulating plate 12 as shown in FIG. 5 is fitted in between. The assembly drawing is shown in Fig. 6.
絶縁構造を第７図、第８図、第９図の拡大図を
用いて説明する。磁性材３０と１次コイル２６の
絶縁距離は第７図、第８図の断面図のDFG部で
ある。又１次コイル２６と２次コイル２７の絶縁
距離は第７図の断面部Ｅ部である。第９図Ａの拡
大図よりＤ部の１次コイル２６と磁性材３０の絶
縁距離はｅ＋ｆ＋2gとなり下側ボビン１０の上
端鍔１４の切欠溝１６の中に上側ボビン１１の上
端鍔２１の内壁に設けた突起２２をはめ込むこと
によつて＋2gの絶縁距離を増やすことができる。
第９図ＣのＦ部は１次コイル２６のリード線２９
がピン端子１８に接続され、このピン端子１８と
磁性材３０との絶縁距離を見たものである。絶縁
距離I1はｋ＋ｌ＋ｎ＋ｍ、又絶縁距離I2はＰ＋Ｏ
の値となる。いわゆるピン端子１８と磁性材３０
の下端面および片側面の間に絶縁板１２を挿入し
て絶縁距離を確保したものである。絶縁板１２を
はめ込むことによつてｍ＋ｌ又は（ｐ−ｎ＋ｋ）
＋Ｏの寸法が増加可能となる。 The insulation structure will be explained using enlarged views of FIGS. 7, 8, and 9. The insulation distance between the magnetic material 30 and the primary coil 26 is the DFG portion in the cross-sectional views of FIGS. 7 and 8. Further, the insulation distance between the primary coil 26 and the secondary coil 27 is the cross-sectional portion E in FIG. From the enlarged view of FIG. 9A, the insulation distance between the primary coil 26 and the magnetic material 30 in the D section is e+f+2g. By fitting the provided protrusion 22, the insulation distance can be increased by +2g.
Part F in FIG. 9C is the lead wire 29 of the primary coil 26.
is connected to the pin terminal 18, and the insulation distance between the pin terminal 18 and the magnetic material 30 is observed. Insulation distance I 1 is k + l + n + m, and insulation distance I 2 is P + O
The value is . So-called pin terminal 18 and magnetic material 30
An insulating plate 12 is inserted between the lower end surface and one side surface to ensure an insulating distance. m+l or (pn+k) by fitting the insulating plate 12
+O dimension can be increased.
第９図ＤのＧ部は１次コイル２７と磁性材３０
の絶縁距離を示すものでＳ＋ｒ＋ｑの値となる。
下側ボビン１０の下端鍔１５の磁性材に対しての
両側面に設けた段差１７に上側ボビン１１の下端
鍔２３の磁性材３０に対する両側端部の絶縁壁２
４をはめ込むことによつて＋Ｓの絶縁距離を増や
すことができる。第９図ＢのＥ部は１次コイル２
６と２次コイル２７との絶縁距離を示すものでｉ
＋ｈ＋ｊの値となる。下側ボビン１１の筒状部１
３の下端鍔側に段差２８を設け、その上に上側ボ
ビン１１の筒状部２０を嵌合することによつて＋
ｉの絶縁距離を増やすことができる。 Part G in FIG. 9D is the primary coil 27 and the magnetic material 30.
This indicates the insulation distance of S+r+q.
Insulating walls 2 at both ends of the lower end collar 23 of the upper bobbin 11 relative to the magnetic material 30 are provided at steps 17 provided on both sides of the lower end collar 15 of the lower bobbin 10 relative to the magnetic material.
By fitting 4, the insulation distance of +S can be increased. Part E in Figure 9B is the primary coil 2.
6 and the secondary coil 27.
The value is +h+j. Cylindrical part 1 of lower bobbin 11
By providing a step 28 on the lower end flange side of 3 and fitting the cylindrical portion 20 of the upper bobbin 11 onto the step 28, +
The insulation distance of i can be increased.
発明の効果
以上述べたように本発明の下側ボビンに上側ボ
ビンの挿入嵌合し更に磁性材組立後磁性材片側端
部と下側ボビンの下端鍔に設けた絶縁壁の間に絶
縁板をはめ込むことによつて１次コイルと２次コ
イル及び１次コイルと磁性材との絶縁距離が確保
でき、安全規格をクリヤーした変成器でかつ小
型、軽量、低コストのトランスが実現でき、その
実用的効果は極めて大なるものがある。Effects of the Invention As described above, after the upper bobbin of the present invention is inserted and fitted into the lower bobbin and the magnetic material is assembled, an insulating plate is placed between one end of the magnetic material and the insulating wall provided at the lower end flange of the lower bobbin. By fitting, the insulation distance between the primary coil and the secondary coil and the primary coil and the magnetic material can be secured, making it possible to create a transformer that meets safety standards and is small, lightweight, and low cost. The effects are extremely large.
第１図は従来の変成器の上側、下側ボビンの分
解斜視図、第２図は従来の変成器の断面図、第３
図Ａ，Ｂは本発明の下側ボビンの斜視図、第４図
Ａ，Ｂは本発明の上側ボビンの斜視図、第５図は
本発明の絶縁板の斜視図、第６図は本発明の変成
器一実施例を示す斜視図、第７図は本発明の変成
器の側面断面図、第８図は本発明の変成器の正面
断面図、第９図Ａ〜Ｄは本発明の変成器の各部の
拡大部分断面図である。
１０……下側ボビン、１１……上側ボビン、１
２……絶縁板、１３……筒状部、１４……上端
鍔、１５……下端鍔、１６……切欠溝、１７……
段差、１８……ピン端子、１９……絶縁壁、２０
……筒状部、２１……上端鍔、２２……突起、２
３……下端鍔、２４……絶縁壁、２５……切欠
き、２６……１次コイル、２７……２次コイル、
２８……段差、２９……リード線、３０……磁性
材。
Figure 1 is an exploded perspective view of the upper and lower bobbins of a conventional transformer, Figure 2 is a sectional view of a conventional transformer, and Figure 3 is a cross-sectional view of the conventional transformer.
Figures A and B are perspective views of the lower bobbin of the invention, Figures 4A and B are perspective views of the upper bobbin of the invention, Figure 5 is a perspective view of the insulating plate of the invention, and Figure 6 is the perspective view of the insulating plate of the invention. FIG. 7 is a side sectional view of the transformer of the present invention, FIG. 8 is a front sectional view of the transformer of the present invention, and FIGS. 9 A to D are the transformers of the present invention. It is an enlarged partial sectional view of each part of a container. 10...Lower bobbin, 11...Upper bobbin, 1
2... Insulating plate, 13... Cylindrical part, 14... Upper end flange, 15... Lower end flange, 16... Notch groove, 17...
Step, 18... Pin terminal, 19... Insulating wall, 20
...Cylindrical part, 21...Top end flange, 22...Protrusion, 2
3...Lower end flange, 24...Insulating wall, 25...Notch, 26...Primary coil, 27...Secondary coil,
28...Step, 29...Lead wire, 30...Magnetic material.
Claims (1)
記下側ボビンは磁性材を貫通させるとともに、外
周にコイルを巻回する筒状部を有し、この筒状部
の上下端外周部に上端鍔および下端鍔を設け、こ
の上端鍔部は下端鍔部より小さく形成すると共
に、その上面部中央全周に切欠溝を形成し、かつ
下端鍔の両側面に段差を形成し、下端鍔の下面に
ピン端子を植設し、上記磁性材の片側面に対する
絶縁壁を設け、上記上側ボビンは上記下側ボビン
の上端鍔部から下方全体を嵌合させると共に外周
にコイルを巻回する筒状部を有し、この筒状部の
上端鍔の内壁に下側ボビンの上端鍔に設けた切欠
溝に相対する突起を全周に設け、更に下端鍔に磁
性材の両側面に対して絶縁壁を設け、下側ボビン
の上端部に設けた切欠溝に上側ボビンの上端鍔に
設けた突起をはめ込み、かつ下側ボビンの下端鍔
に設けた段差に上側ボビンの下端鍔に設けた絶縁
壁がはまり込む構造とし、更に磁性材を組み込む
と共に下側ボビンの下端鍔の下面に設けた絶縁壁
に磁性材の下端面と片側面の一部を覆うＬ字形状
の絶縁板をこの絶縁板に設けた切欠きを用いて嵌
合してなる変成器。1 It has a lower bobbin, an upper bobbin, and an insulating plate, and the lower bobbin has a cylindrical part through which a magnetic material is passed and around which a coil is wound. An upper end flange and a lower end flange are provided, and the upper end flange is formed smaller than the lower end flange, and a notched groove is formed all around the center of the upper surface, and a step is formed on both sides of the lower end flange. A pin terminal is implanted on the lower surface, an insulating wall is provided on one side of the magnetic material, and the upper bobbin has a cylindrical shape into which the entire lower part of the lower bobbin is fitted from the upper end flange, and a coil is wound around the outer periphery. The inner wall of the upper end flange of this cylindrical part is provided with a protrusion facing the notch groove provided in the upper end flange of the lower bobbin around the entire circumference, and the lower end flange is further provided with an insulating wall on both sides of the magnetic material. The protrusion provided on the upper end flange of the upper bobbin is fitted into the cutout groove provided on the upper end of the lower bobbin, and the insulating wall provided on the lower end flange of the upper bobbin is inserted into the step provided on the lower end flange of the lower bobbin. In addition to incorporating a magnetic material, an L-shaped insulating plate is provided on the insulating wall provided on the lower surface of the lower end flange of the lower bobbin to cover the lower end surface and part of one side of the magnetic material. A transformer that fits together using a notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20340384A JPS6181612A (en) | 1984-09-28 | 1984-09-28 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20340384A JPS6181612A (en) | 1984-09-28 | 1984-09-28 | Transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6181612A JPS6181612A (en) | 1986-04-25 |
| JPH0481322B2 true JPH0481322B2 (en) | 1992-12-22 |
Family
ID=16473473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20340384A Granted JPS6181612A (en) | 1984-09-28 | 1984-09-28 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6181612A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079366Y2 (en) * | 1986-12-26 | 1995-03-06 | 松下電器産業株式会社 | Trance |
| JPH0235424U (en) * | 1988-08-29 | 1990-03-07 | ||
| JPH0590928U (en) * | 1992-05-07 | 1993-12-10 | 東光株式会社 | High frequency transformer |
| MY111103A (en) * | 1993-05-31 | 1999-08-30 | Tokin Corp | A bobbin capable of reliably insulating a first coil from a second coil |
| DE112010005769B4 (en) * | 2010-07-26 | 2015-02-19 | Mitsubishi Electric Corporation | transformer |
| JP5804628B2 (en) * | 2011-07-06 | 2015-11-04 | Tdk株式会社 | Coil parts |
| USD734257S1 (en) | 2012-01-24 | 2015-07-14 | Tdk Corporation | Transformer |
| JP6255933B2 (en) * | 2013-11-20 | 2018-01-10 | Tdk株式会社 | Coil device |
| JP6460168B1 (en) * | 2017-07-21 | 2019-01-30 | Tdk株式会社 | Coil device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471113U (en) * | 1977-10-29 | 1979-05-21 |
-
1984
- 1984-09-28 JP JP20340384A patent/JPS6181612A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6181612A (en) | 1986-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |