JPH06344909A - Impedance bond - Google Patents
Impedance bondInfo
- Publication number
- JPH06344909A JPH06344909A JP5134200A JP13420093A JPH06344909A JP H06344909 A JPH06344909 A JP H06344909A JP 5134200 A JP5134200 A JP 5134200A JP 13420093 A JP13420093 A JP 13420093A JP H06344909 A JPH06344909 A JP H06344909A
- Authority
- JP
- Japan
- Prior art keywords
- case
- iron core
- coil
- iron
- core
- 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.)
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明はインピーダンスボンド
に関し、特にその乾式化に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impedance bond, and more particularly, to a dry process thereof.
【０００２】[0002]
【従来の技術】インピーダンスボンドは、電車の信号区
間において、同区間に電車が入ってきたことを示す信号
と同区間の電力用電流を変電所に戻すための回路を作る
ために、信号区間相互の接続を行う装置である。従来の
インピーダンスボンドはオイル入りの大形のものであ
り、重量も重く、オイルの保守、交換や修理のための移
動に大変な労力を必要とする。例えば、ＪＲＳ（ＪＲ規
格）２２７０１−１２Ｂ−１４ＡＲ３Ｃインピーダンス
ボンド（在来線用）の場合、ＤＣ商用１０００Ａの機種
で体積約１２７ｌ、質量４３０Ｋｇである。鉄心にはＥ
−Ｅ型の積み鉄心を用い、オイル中にコイルと鉄心を浸
漬することにより、大電流（１０００Ａ）による発熱を
オイルの対流によって放熱冷却するようにしている。2. Description of the Related Art Impedance bonds are used in a signal section of a train in order to create a signal for indicating that a train has entered the section and a circuit for returning a power current in the section to a substation. Is a device for connecting. The conventional impedance bond is a large one containing oil, and it is heavy and requires a great deal of effort to move the oil for maintenance, replacement or repair. For example, in the case of JRS (JR standard) 22701-12B-14AR3C impedance bond (for conventional line), the volume is about 127 l and the mass is 430 Kg in the model of DC commercial 1000A. E for the iron core
By using an E-type stacked iron core and immersing the coil and the iron core in oil, heat generated by a large current (1000 A) is radiatively cooled by convection of the oil.
【０００３】[0003]
【発明が解決しようとする課題】上記したように従来の
湿式インピーダンスボンドはオイル入りのため重量が重
く、同程度の大きさのトランスと比べても大形で重いも
のであった。このため、設置や移動などの工事に多くの
労力を要し、小形化、軽量化が課題となっていた。又、
オイルが長期年月で劣化したり、パッキングなどの劣化
により雨水などが侵入したときにはオイル交換が必要と
なり、やはり労力を要した。このように、小形化、軽量
化、オイルレス化は時代の要請となってきた。As described above, the conventional wet impedance bond is heavy because it contains oil, and is large and heavier than a transformer of the same size. For this reason, a lot of labor is required for construction such as installation and movement, and downsizing and weight reduction have been problems. or,
If the oil deteriorates over a long period of time, or if rainwater or the like enters due to deterioration of the packing or the like, it is necessary to change the oil, which is also labor-intensive. As described above, miniaturization, weight reduction, and oillessness have become demands of the times.
【０００４】ところで、ＪＲ規格の構成材料も現在では
進歩しており、オイルの対流によらない放熱も可能とな
りつつある。ちなみに、耐熱性のレンジは１５５℃（Ｆ
種）にも充分耐え得るものであり、熱伝導性の高いレン
ジの充填も可能である。又、コイルの絶縁も芳香族ナイ
ロンの不織布やイミドのフイルムなどにより行うことが
でき、これらをテープ状やシート状にしてコイルの相間
絶縁や対地絶縁などに用いることにより、コイルのま温
度上昇についてもより高温に耐えることができる。さら
に、重電業界ではかなり以前からカットコアが用いら
れ、このカットコアは積み鉄心よりも性能が出易く、製
造上の工数も低減し易い。By the way, the constituent materials of the JR standard have also advanced at present, and it is becoming possible to radiate heat without convection of oil. By the way, the heat resistance range is 155 ℃ (F
It is also capable of withstanding high temperature conductivity and can be filled in a range with high thermal conductivity. In addition, the insulation of the coil can also be performed with non-woven fabric of aromatic nylon or film of imide. By using these in tape or sheet form for phase-to-phase insulation of the coil and ground insulation, etc. Can even withstand higher temperatures. Further, cut cores have been used in the heavy electric industry for a long time, and the cut cores are more likely to have better performance than the laminated cores, and the man-hours for manufacturing are also easily reduced.
【０００５】この発明は上記のような課題を解決するた
めに成されたものであり、小形化、軽量化、オイルレス
化を可能とするインピーダンスボンドを得ることを目的
とする。The present invention has been made to solve the above problems, and an object thereof is to obtain an impedance bond which can be reduced in size, weight, and oilless.
【０００６】[0006]
【課題を解決するための手段】この発明の請求項１にか
かるインピーダンスボンドはＥ−Ｅ型積み鉄心とコイル
を収納した鉄製ケース内にエポキシ樹脂を充填するとと
もに、鉄心とケースの間に熱伝導性絶縁シートを設けた
ものである。According to a first aspect of the present invention, an impedance bond fills an epoxy resin in an iron case containing an EE type stacked iron core and a coil and conducts heat between the iron core and the case. A conductive insulating sheet is provided.
【０００７】請求項２にかかるインピーダンスボンド
は、カットコアとコイルを収納したケース内にエポキシ
樹脂を充填したものである。The impedance bond according to claim 2 is one in which a case containing a cut core and a coil is filled with epoxy resin.
【０００８】[0008]
【作用】請求項１においては、ケース内にエポキシ樹脂
が充填されるとともに、鉄心とケースの間に熱伝導性絶
縁シートが設けられ、通電により発生した熱は熱伝導性
の良いエポキシ樹脂及び熱伝導性絶縁シートとケースを
介して放熱される。According to the first aspect of the present invention, the case is filled with the epoxy resin, and the heat conductive insulating sheet is provided between the iron core and the case. Heat is dissipated through the conductive insulating sheet and the case.
【０００９】請求項２においては、鉄心として所定のイ
ンピーダンス値を精度良く出し易いカットコアが用いら
れ、また発生した熱はエポキシ樹脂及びケーカを介して
放熱される。In the second aspect, a cut core is used as the iron core, which is capable of easily producing a predetermined impedance value with high precision, and the generated heat is radiated through the epoxy resin and the caker.
【００１０】[0010]
実施例１ 以下、この発明の実施例を図面とともに説明する。図１
（ａ），（ｂ）は実施例１によるインピーダンスボンド
の横断平面図及び縦断正面図を示し、１は上下に一対Ｅ
型積み鉄心２を対向して設けたＥ−Ｅ型積み鉄心（Ｅ−
Ｅ型Ｓ１４）、３はＥ−Ｅ型積み鉄心１をおおうように
設けられた鉄製のケースであり、Ｅ−Ｅ型積み鉄心１と
ケース３との接近又は接触部４には熱伝導性絶縁シート
を挿入し、この間の絶縁を行う。熱伝導性絶縁シートと
しては、厚さ０．３ｍｍのユニシート（商品名、明電ケ
ミカル（株）製、熱伝導率３．０×１０-3ｃａｌ／ｃｍ
・ｓｅｃ・℃）を用いた。５は各Ｅ型積み鉄心２の凹部
２ａに一部が挿入された一対の一次コイル、６は一対の
一次コイル５の間に設けられた二次コイル、７は一次コ
イル５及び二次コイル６の内側において一部が一対の凹
部２ａに挿入された三次コイルである。又、ケース３内
には熱伝導性を良くするために注型用エポキシ樹脂を注
入し、硬化させた。注型用エポキシ樹脂は、アルミナの
粉末を７０％含む低粘度エポキシ樹脂と酸無水物より構
成した。Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1
(A), (b) is a cross-sectional plan view and a longitudinal front view of the impedance bond according to the first embodiment, and 1 is a pair of upper and lower E
E-E type stacked iron core (E-
E type S14), 3 is an iron case provided so as to cover the EE type stacked iron core 1, and a thermal conductive insulation is provided in the approaching or contact portion 4 between the EE type stacked iron core 1 and the case 3. Insert the sheet and insulate between them. As the heat conductive insulating sheet, a unisheet having a thickness of 0.3 mm (trade name, manufactured by Meiden Chemical Co., Ltd., thermal conductivity of 3.0 × 10 −3 cal / cm)
.Sec..degree. C.) was used. Reference numeral 5 is a pair of primary coils partially inserted in the recesses 2a of each E-shaped iron core 2, 6 is a secondary coil provided between the pair of primary coils 5, and 7 is the primary coil 5 and the secondary coil 6. Is a tertiary coil partly inserted inside the pair of recesses 2a. Further, a casting epoxy resin was injected into the case 3 in order to improve the thermal conductivity and cured. The casting epoxy resin was composed of a low-viscosity epoxy resin containing 70% of alumina powder and an acid anhydride.
【００１１】ＤＣ商用１０００Ａ用の機種の場合、イン
ピーダンスボンドの全体的な大きさは、縦４３４ｍｍ
（従来の８９％）、横４４０ｍｍ（従来の８８％）、高
さ３７２ｍｍ（従来の６６％）、体積７１ｌ（従来の５
６％）、重量３１０Ｋｇ（従来の７２％）、温度上昇は
コイル部抵抗法により測定して６９℃（従来は７５℃）
となった。コイル５〜７の絶縁は、ポリエステルフイル
ム、プレスボート、ワニスクロスにより行った。又、一
次コイル５は銅の８ターン（従来は１０ターン）により
構成し、二次コイル６はＰＥＷ平角線の８ターン（従来
は二重線巻平角線の１０ターン）により構成し、三次コ
イル７はＰＥＷ丸線の１６０ターン（従来はホルマール
銅線の２００ターン）により構成した。又、放熱冷却
は、注型用エポキシ樹脂及び熱伝導性絶縁シートの熱伝
導により行った。In the case of the DC commercial 1000A model, the overall size of the impedance bond is 434 mm in length.
(89% of conventional), 440 mm in width (88% of conventional), 372 mm in height (66% of conventional), 71 l in volume (5 in conventional)
6%), weight 310 kg (72% of conventional), temperature rise measured by coil resistance method 69 ° C (conventional 75 ° C)
Became. The coils 5 to 7 were insulated with a polyester film, a press boat, and a varnish cloth. Further, the primary coil 5 is made up of 8 turns of copper (10 turns in the past), and the secondary coil 6 is made up of 8 turns of PEW rectangular wire (10 turns of double wire wound rectangular wire in the past), and the tertiary coil is used. No. 7 was composed of 160 turns of PEW round wire (200 turns of conventional formal copper wire). The heat radiation cooling was performed by heat conduction of the casting epoxy resin and the heat conductive insulating sheet.
【００１２】実施例１においては、発生した熱の放熱冷
却は熱伝導性の良いエポキシ樹脂及びケース３を介して
行われ、オイルレスにより小形、軽量化が可能となっ
た。又、Ｅ−Ｅ型積み鉄心１と鉄製のケース３との間の
絶縁は熱伝導性絶縁シートにより行われるが、該シート
によっても熱伝導が行われる。又、各コイル５〜７のタ
ーン数を従来より削減したので、これによっても小形化
が達成される。このターン数の削減は、Ｅ型積み鉄心２
相互の合せ具合を正しくして磁気特性を向上させるとと
もに、余裕率を小さくすることにより可能となる。この
結果、一次コイル５に１０００Ａの電流を持続的に流し
た場合の一次コイル５の温度上昇は図２に示すように６
９℃となり、従来の７５℃以下の規定を充分満足し、小
形化しても支障がないことが判明した。In the first embodiment, the generated heat is radiated and cooled through the epoxy resin having a good thermal conductivity and the case 3, and it is possible to reduce the size and weight without using oil. Further, the insulation between the E-E type stacked iron core 1 and the iron case 3 is performed by a heat conductive insulating sheet, but the sheet also performs heat conduction. Further, since the number of turns of each coil 5 to 7 is reduced as compared with the conventional one, the miniaturization can be achieved also by this. This reduction in the number of turns is due to the E-type stacked iron core 2
This can be achieved by improving the magnetic characteristics by properly adjusting the mutual alignment and reducing the margin ratio. As a result, when the current of 1000 A is continuously applied to the primary coil 5, the temperature rise of the primary coil 5 is as shown in FIG.
It became 9 ° C, which fully satisfied the conventional regulation of 75 ° C or less, and it was found that there is no problem even if it is downsized.
【００１３】実施例２ 図３（ａ），（ｂ）は実施例２によるインピーダンスボ
ンドの横断平面図が及び縦断正面図を示し、８は一対の
カットコア片８ａ，８ｂを突き合せて形成した巻き鉄心
のカットコアであり、その突き合せ面には図４（ａ），
（ｂ）に示すように幅か異なるスリット８ｃ，８ｄが形
成される。カットコア８はスリット８ｃ側が隣接するよ
うに２個配設される。一対の一次コイル５は各カットコ
ア８のカットコア片８ａ，８ｂの凹部８ｅに一部が挿入
され、二次コイル６は一対の一次コイル５の間に設けら
れ、三次コイル７は一次コイル５及び二次コイル６の内
側において一部が一対の凹部８ｅに挿入される。９は２
個のカットコア８と各コイル５〜７の周囲をおおうアル
ミ製のケースであり、ケース９内には実施例１と同じ注
型用エポキシ樹脂を注入し、硬化させた。なお、アルミ
製のケース９とカットコア８との間は磁気的に絶縁する
必要がないので、実施例１のような熱伝導性絶縁シート
は設けなくてよい。Embodiment 2 FIGS. 3 (a) and 3 (b) are a cross-sectional plan view and a longitudinal front view of an impedance bond according to Embodiment 2, and 8 is formed by abutting a pair of cut core pieces 8a, 8b. It is a cut core of a wound iron core, and its abutting surface is shown in FIG.
As shown in (b), slits 8c and 8d having different widths are formed. Two cut cores 8 are arranged so that the slits 8c are adjacent to each other. Part of the pair of primary coils 5 is inserted into the recesses 8e of the cut core pieces 8a and 8b of each cut core 8, the secondary coil 6 is provided between the pair of primary coils 5, and the tertiary coil 7 is the primary coil 5. A part of the inner side of the secondary coil 6 is inserted into the pair of recesses 8e. 9 is 2
The case is an aluminum case that covers the individual cut cores 8 and the respective coils 5 to 7, and the same casting epoxy resin as in Example 1 was injected into the case 9 and cured. Since it is not necessary to magnetically insulate the aluminum case 9 and the cut core 8 from each other, it is not necessary to provide the heat conductive insulating sheet as in the first embodiment.
【００１４】ＤＣ商用１０００Ａ用の機種の場合、イン
ピーダンスボンドの大きさは、縦４２５ｍｍ（従来の８
７％）、横４７０ｍｍ（従来の９４％）、高さ３０５ｍ
ｍ（従来の５４％）、体積４３ｌ（従来の３４％）、重
量２３５Ｋｇ（従来の５５％）、温度上昇は９０℃（従
来は７５℃）となった。コイル５〜７の絶縁は、ノーメ
イクフイルム、キノルゴボード、ワニスガラスクロスに
より行った。又、一次コイル５は銅の８ターン（従来は
１０ターン）により構成し、二次コイル６はＡＩＷ平角
線の８ターン（従来は二重線巻平角線の１０ターン）に
より構成し、三次コイル７はＡＩＷ丸線の１６０ターン
（従来はホルマール銅線の２００ターン）により構成し
た。又、放熱冷却は注型用エポキシ樹脂の熱伝導により
行った。In the case of the DC commercial 1000A model, the size of the impedance bond is 425 mm in length (8 in the conventional case).
7%), width 470mm (conventional 94%), height 305m
m (conventional 54%), volume 43 l (conventional 34%), weight 235 Kg (conventional 55%), and temperature rise was 90 ° C (conventional 75 ° C). The coils 5 to 7 were insulated with a no-make film, quinolgo board, and varnish glass cloth. The primary coil 5 is composed of 8 turns of copper (10 turns in the past), and the secondary coil 6 is composed of 8 turns of an AIW rectangular wire (10 turns of a double-wired rectangular wire in the past). 7 is composed of 160 turns of AIW round wire (200 turns of conventional formal copper wire). The heat radiation cooling was performed by heat conduction of the casting epoxy resin.
【００１５】実施例２においては、発生した熱の放熱冷
却は熱伝導性の良いエポキシ樹脂及びケース９を介して
行われ、オイルレスにより小形、軽量化が可能となっ
た。又、各コイル５〜７のターン数の削減によっても小
形化が可能となった。さらに、Ｅ−Ｅ型積み鉄心の場合
には鉄板の積み重ねに工数がかかるとともに、鉄心間の
隙間の調整によるインピーダンス値の調整が困難であっ
たが、巻き鉄心のカットコア８の場合には工数が削減さ
れるとともに、小形化も可能となり、またインピーダン
ス値の調整が容易で鉄損を減少させることができ、精度
と効率を向上することができる。この結果、一次コイル
５のターン数は実施例１と同じで銅の断面積を２０％小
さくして電流密度を高めることができた。一次コイル５
に１０００Ａの電流を持続的に流した場合の一次コイル
５の温度上昇は図５に示すように９０℃となり、従来の
７５℃より若干大きいが、小形化しても支障がないこと
が判明した。In the second embodiment, the generated heat is radiated and cooled through the epoxy resin having a good thermal conductivity and the case 9, and it is possible to reduce the size and weight without using oil. In addition, downsizing has also become possible by reducing the number of turns of each coil 5-7. Further, in the case of the EE type stacked iron core, it takes a lot of time to stack the iron plates, and it is difficult to adjust the impedance value by adjusting the gap between the iron cores. However, in the case of the cut core 8 of the wound iron core, It is possible to reduce the size, reduce the size, adjust the impedance value easily, reduce the iron loss, and improve the accuracy and efficiency. As a result, the number of turns of the primary coil 5 was the same as in Example 1, and the cross-sectional area of copper was reduced by 20% to increase the current density. Primary coil 5
As shown in FIG. 5, the temperature rise of the primary coil 5 when a current of 1000 A is continuously applied is 90 ° C., which is slightly higher than the conventional 75 ° C., but it was found that there is no problem even if the size is reduced.
【００１６】[0016]
【発明の効果】以上のようにこの発明の請求項１によれ
ば、オイルの代りにエポキシ樹脂を鉄製ケース内に充填
するとともに、積み鉄心とケースの間に熱伝導性絶縁シ
ートを設け、このエポキシ樹脂と絶縁シートを介して発
熱の放熱冷却を行うようにしており、オイルレス化によ
り小形化、軽量化を達成することができる。As described above, according to the first aspect of the present invention, the epoxy resin is filled in the iron case instead of the oil, and the heat conductive insulating sheet is provided between the iron core and the case. The heat generated is radiated and cooled through the epoxy resin and the insulating sheet, and it is possible to achieve size reduction and weight reduction by eliminating oil.
【００１７】又、請求項２によれば、発熱の放熱冷却を
エポキシ樹脂を介して行うようにしており、オイルレス
化により小形化、軽量化を達成することができる。又、
鉄心をカットコアとしたので、精度及び効率を向上する
ことができ、小形、軽量化をさらに促進することができ
る。According to the second aspect of the present invention, the heat radiation and cooling are performed through the epoxy resin, and it is possible to achieve size reduction and weight reduction by eliminating oil. or,
Since the iron core is the cut core, the accuracy and efficiency can be improved, and the reduction in size and weight can be further promoted.
【図１】実施例１によるインピーダンスボンドの横断平
面図及び縦断正面図である。FIG. 1 is a cross-sectional plan view and a vertical sectional front view of an impedance bond according to a first embodiment.
【図２】実施例１によるインピーダンスボンドの一次コ
イルの温度上昇特性図である。FIG. 2 is a temperature rise characteristic diagram of the primary coil of the impedance bond according to the first embodiment.
【図３】実施例２によるインピーダンスボンドの横断平
面図及び縦断正面図である。3A and 3B are a cross-sectional plan view and a vertical sectional front view of an impedance bond according to a second embodiment.
【図４】実施例２によるカットコアの平面図及び正面図
である。FIG. 4 is a plan view and a front view of a cut core according to a second embodiment.
【図５】実施例２によるインピーダンスボンドの一次コ
イルの温度上昇特性図である。FIG. 5 is a temperature rise characteristic diagram of the primary coil of the impedance bond according to the second embodiment.
１…Ｅ−Ｅ型積み鉄心 ２…Ｅ型積み鉄心 ３…鉄製ケース ４…接近又は接触部 ５〜７…コイル ８…カットコア ９…アルミ製ケース 1 ... E-type stacked iron core 2 ... E-type stacked iron core 3 ... Iron case 4 ... Approaching or contact part 5-7 ... Coil 8 ... Cut core 9 ... Aluminum case
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 久夫 東京都品川区西五反田７丁目16番１号 明 電ケミカル株式会社内 (72)発明者 稲富 裕 東京都品川区大崎２丁目１番17号 株式会 社明電舎内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisao Takahashi 7-16-1, Nishigotanda, Shinagawa-ku, Tokyo Meiden Chemical Co., Ltd. (72) Inventor Hiroshi Inatomi 2-1-117, Osaki, Shinagawa-ku, Tokyo Stock company Shameidensha
Claims (2)
Ｅ型積み鉄心と、Ｅ−Ｅ型積み鉄心に巻装したコイル
と、Ｅ−Ｅ型積み鉄心とコイルを収納した鉄製ケース
と、Ｅ−Ｅ型積み鉄心と鉄製ケースの間に設けた熱伝導
性絶縁シートと、ケース内に充填したエポキシ樹脂を備
えたことを特徴とするインピーダンスボンド。1. An E- in which a pair of E-type stacked iron cores are arranged to face each other.
E-type stacked iron core, coil wound around EE-type stacked iron core, iron case containing EE-type stacked iron core and coil, and heat conduction provided between EE-type stacked iron core and iron case Impedance bond characterized by having a conductive insulating sheet and an epoxy resin filled in the case.
イルと、カットコアとコイルを収納したケースと、ケー
ス内に充填したエポキシ樹脂を備えたことを特徴とする
インピーダンスボンド。2. An impedance bond comprising a cut core, a coil wound around the cut core, a case accommodating the cut core and the coil, and an epoxy resin filled in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13420093A JP3413244B2 (en) | 1993-06-04 | 1993-06-04 | Impedance bond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13420093A JP3413244B2 (en) | 1993-06-04 | 1993-06-04 | Impedance bond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06344909A true JPH06344909A (en) | 1994-12-20 |
| JP3413244B2 JP3413244B2 (en) | 2003-06-03 |
Family
ID=15122774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13420093A Expired - Lifetime JP3413244B2 (en) | 1993-06-04 | 1993-06-04 | Impedance bond |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3413244B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100453858B1 (en) * | 2002-09-18 | 2004-10-26 | 씨큐아이씨이 주식회사 | Impedance bond of track circuit for railroad |
| WO2006016554A1 (en) * | 2004-08-10 | 2006-02-16 | Tamura Corporation | Reactor |
| JP2006310550A (en) * | 2005-04-28 | 2006-11-09 | Tamura Seisakusho Co Ltd | Rector using pot core and composite reactor |
| JP2007129146A (en) * | 2005-11-07 | 2007-05-24 | Toyota Motor Corp | Cooling structure of reactor and electrical apparatus unit |
| JP2007305803A (en) * | 2006-05-11 | 2007-11-22 | Tamura Seisakusho Co Ltd | Coil, and shape forming method thereof |
| JP2008141092A (en) * | 2006-12-05 | 2008-06-19 | Denken Seiki Kenkyusho:Kk | Noise cut-off transformer |
| JP2009246222A (en) * | 2008-03-31 | 2009-10-22 | Sumitomo Electric Ind Ltd | Reactor |
| CN102592794A (en) * | 2006-05-11 | 2012-07-18 | 株式会社田村制作所 | Coil and method for forming coil |
| JP2014199835A (en) * | 2013-03-29 | 2014-10-23 | 日本信号株式会社 | Inductor |
| WO2015159640A1 (en) * | 2014-04-16 | 2015-10-22 | 株式会社 豊田自動織機 | Electronic device and method for manufacturing electronic device |
| JP2016015394A (en) * | 2014-07-02 | 2016-01-28 | 株式会社京三製作所 | Impedance bond |
-
1993
- 1993-06-04 JP JP13420093A patent/JP3413244B2/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100453858B1 (en) * | 2002-09-18 | 2004-10-26 | 씨큐아이씨이 주식회사 | Impedance bond of track circuit for railroad |
| WO2006016554A1 (en) * | 2004-08-10 | 2006-02-16 | Tamura Corporation | Reactor |
| JPWO2006016554A1 (en) * | 2004-08-10 | 2008-05-01 | 株式会社タムラ製作所 | Reactor |
| JP2006310550A (en) * | 2005-04-28 | 2006-11-09 | Tamura Seisakusho Co Ltd | Rector using pot core and composite reactor |
| JP4645417B2 (en) * | 2005-11-07 | 2011-03-09 | トヨタ自動車株式会社 | Reactor cooling structure and electrical equipment unit |
| JP2007129146A (en) * | 2005-11-07 | 2007-05-24 | Toyota Motor Corp | Cooling structure of reactor and electrical apparatus unit |
| CN102592794A (en) * | 2006-05-11 | 2012-07-18 | 株式会社田村制作所 | Coil and method for forming coil |
| JP2007305803A (en) * | 2006-05-11 | 2007-11-22 | Tamura Seisakusho Co Ltd | Coil, and shape forming method thereof |
| JP2008141092A (en) * | 2006-12-05 | 2008-06-19 | Denken Seiki Kenkyusho:Kk | Noise cut-off transformer |
| JP2009246222A (en) * | 2008-03-31 | 2009-10-22 | Sumitomo Electric Ind Ltd | Reactor |
| JP2014199835A (en) * | 2013-03-29 | 2014-10-23 | 日本信号株式会社 | Inductor |
| WO2015159640A1 (en) * | 2014-04-16 | 2015-10-22 | 株式会社 豊田自動織機 | Electronic device and method for manufacturing electronic device |
| JP2015204447A (en) * | 2014-04-16 | 2015-11-16 | 株式会社豊田自動織機 | Electronic apparatus, and manufacturing method of electronic apparatus |
| JP2016015394A (en) * | 2014-07-02 | 2016-01-28 | 株式会社京三製作所 | Impedance bond |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3413244B2 (en) | 2003-06-03 |
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