JPS5915364B2 - reactor - Google Patents
reactorInfo
- Publication number
- JPS5915364B2 JPS5915364B2 JP9066879A JP9066879A JPS5915364B2 JP S5915364 B2 JPS5915364 B2 JP S5915364B2 JP 9066879 A JP9066879 A JP 9066879A JP 9066879 A JP9066879 A JP 9066879A JP S5915364 B2 JPS5915364 B2 JP S5915364B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- outer periphery
- insulating
- insulating plate
- frame
- 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
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
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】
本発明は内芯上に導体をシリンドリカル形に巻付けて形
成したコイルの外周絶縁構造を改良したリアクトルに関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reactor having an improved outer peripheral insulation structure of a coil formed by winding a conductor in a cylindrical shape around an inner core.
従来のシリンドリカル形リアクトルは第１図および第２
図に示す如く、ＦＲＰ等の非磁性非導電性絶縁材からな
る円筒状の内芯１外周に導体２をスペーサ３を介してシ
リンドリカル形に巻付けてコイル４を構成し、そのコイ
ル４の両端にコイル押え５を当接させ、コイル４の外周
には上記内芯１と同様の絶縁外筒６を被装し、この両端
にフレーム１、７を被嵌して相互にボルト８とナット９
で締付け固定することにより全体が組立てられて構成さ
れている。Conventional cylindrical reactors are shown in Figures 1 and 2.
As shown in the figure, a coil 4 is constructed by winding a conductor 2 in a cylindrical shape around the outer periphery of a cylindrical inner core 1 made of a non-magnetic non-conductive insulating material such as FRP, with a spacer 3 interposed therebetween. The outer periphery of the coil 4 is covered with an insulating outer cylinder 6 similar to the inner core 1, and the frames 1 and 7 are fitted on both ends of the coil 4, and bolts 8 and nuts 9 are attached to each other.
The entire assembly is constructed by tightening and fixing.
なお、上記スペーサ３及びコイル押え５は上記内芯１な
どと同じＦＲＰ等の非磁性非導電性絶縁材からなつてい
て、リアクトル全体を構成した時に磁束変化による誘導
回路を遮断するようになつている。また、上記スペーサ
３はコイル４の各導体層間に周方向に等間隔を存して挿
入されて、コイル発熱冷却のための通風道１０・・・フ
を構成している。ところで、上述したシリンドリカル
形リアクトルでは、一般に導体２の表面に絶縁被覆１１
を形成し、そうした導体２を巻き付けてコイル４を構成
することから、そのコイル４はその両端方向の″０ 巾
寸法Ｃ及び外径寸法にバラツキが生じる。The spacer 3 and coil retainer 5 are made of the same non-magnetic, non-conductive insulating material as the inner core 1, such as FRP, and are designed to interrupt the induction circuit caused by changes in magnetic flux when the entire reactor is constructed. There is. Further, the spacers 3 are inserted between the respective conductor layers of the coil 4 at equal intervals in the circumferential direction, and constitute ventilation passages 10 for cooling the heat generated by the coil. By the way, in the above-mentioned cylindrical reactor, an insulating coating 11 is generally provided on the surface of the conductor 2.
Since the coil 4 is formed by winding such a conductor 2, the coil 4 has variations in the zero width dimension C and the outer diameter dimension in the direction of both ends.
従つてそのコイル４を覆つて冷却風の外部への漏れを防
ぐべく予め円筒内に成形した絶縁外筒６は、該コイル４
の外径寸法のバラツキを考慮して必要最大径に予め設計
して形成している。このためにコ１５イル４と絶縁外筒
６との間に空隙１２が大なり小なり生じることになり、
その空隙１２を見込むために絶縁外筒６は非金属成形品
であるにもかかわらず外部からの加圧や打撃等に対して
凹まずに十分耐られるような強度を持つ肉厚なものとし
なけク０ ればならないので高価なものとなつていた。
またそうした絶縁外筒６と両側端のフレーム□、１との
間に隙間が生じないように、該フレーム□、□の円筒部
内周に段部７ａ等を形成して該絶縁外筒６の両側縁部を
精度よく密着嵌合せしめるように２５なすが、しかし上
述した如くコイル４の径方向のバラツキに加えて両端方
向の巾寸法Ｃにもバラツキがあることから、フレーム７
の段部？ａの内周面の精度を出すと共に巾寸法Ｃのバラ
ツキに応じた適当肉厚の絶縁材製寸法調理板１３を上記
フレ３０−ム１のリブＩｂとコイル押え５との間にいち
いち設けなければならないなど、各部材製造工程での寸
法精度や組立時の寸法調整を慎重に行う必要があり、そ
れらの作業は非常に面倒で生産性が悪くコスト高を招く
問題があつた。３５この発明は上記事情に鑑みなされた
もので、その目的とする処は、高価な肉厚の絶縁外筒を
用いずに薄い可撓性絶縁板をコイル外周に密着状態に巻
き付けて組立て、その外周から樹脂モールドを施こして
構成することにより、従来の如き各部の寸法調整を不要
となせて、組立作業の能率アツプが図れると共に、構成
の簡略化及び小型軽量化が図れて大巾にコストダウンす
ることができるものを提供しようとすることにある。Therefore, an insulating outer cylinder 6 formed in advance into a cylindrical shape to cover the coil 4 and prevent cooling air from leaking to the outside is used to cover the coil 4.
It is designed and formed in advance to have the required maximum diameter, taking into consideration the variations in the outer diameter of the tube. For this reason, a gap 12 is created between the coil 15 coil 4 and the insulating outer cylinder 6 to a greater or lesser extent.
In order to allow for the void 12, the insulating outer cylinder 6 must be thick enough to withstand external pressure, impact, etc. without denting, even though it is a non-metallic molded product. It had become expensive because it had to be used.
In addition, in order to prevent gaps from forming between the insulating outer cylinder 6 and the frames □ and 1 at both ends, steps 7a etc. are formed on the inner peripheries of the cylindrical parts of the frames □ and □. 25 so that the edges of the coil 4 are tightly fitted together with precision. However, as mentioned above, in addition to the variation in the radial direction of the coil 4, there is also variation in the width dimension C in the direction of both ends.
Danbe? A dimensional cooking plate 13 made of an insulating material with an appropriate wall thickness in accordance with the variation in the width dimension C must be provided between the rib Ib of the frame 30-1 and the coil holder 5 to ensure accuracy of the inner circumferential surface of the frame 30-a. It is necessary to carefully perform dimensional accuracy in the manufacturing process of each component and dimensional adjustment during assembly, and these tasks are extremely troublesome, resulting in poor productivity and high costs. 35 This invention was made in view of the above circumstances, and its purpose is to assemble a thin flexible insulating plate by tightly wrapping it around the outer periphery of a coil without using an expensive thick insulating outer cylinder. By applying resin molding from the outer periphery, there is no need to adjust the dimensions of each part as in the past, increasing the efficiency of assembly work, as well as simplifying the structure, reducing size and weight, and greatly reducing costs. It's about trying to provide something that can go down.
以下、この発明の一実施例を第３図及び第６図に従い説
明する。An embodiment of the present invention will be described below with reference to FIGS. 3 and 6.
なお、ここで上記第１図及び第２図に示したものと同一
構成部分は図面に同一符号を附して簡単に説明する。つ
まり従来同様に内芯１の外周に絶縁被膜１１で覆つた導
体２をスペーサ３を介してシリンドリカル形に巻付けて
コイル４を構成し、そのコイル４の両端にコイル押え５
を当接し、その両外側にはボルト８とナツト９とにより
後述するフレーム１５を締付固定している。なお、上記
スペーサ３によつてコイル４の各導体層間には冷却用の
通風導１０・・・を構成している。ここで、上記コイル
４の外周には冷却風を外部に漏さないようにするために
一枚のポリアミド紙等からなる薄い可撓性絶縁板１４を
該コイル４外周面に密着して巻装し、その絶縁板１４の
コイル４より両端外方へ突出する両側縁部１４ａを両端
のフレーム１５の筒状部１５ａ内周に差込んで全体が組
立てられ、その外周からエボキシ等の樹脂モールド１６
を施こして構成されている。Note that the same components as those shown in FIGS. 1 and 2 above are designated by the same reference numerals in the drawings and will be briefly described. In other words, as in the conventional case, a conductor 2 covered with an insulating coating 11 is wound around the outer periphery of an inner core 1 in a cylindrical shape via a spacer 3 to form a coil 4, and coil holders 5 are attached to both ends of the coil 4.
A frame 15, which will be described later, is fastened to both outer sides of the frame 15 by bolts 8 and nuts 9. Note that the spacer 3 forms a cooling ventilation guide 10 between each conductor layer of the coil 4. Here, a thin flexible insulating plate 14 made of a sheet of polyamide paper or the like is tightly wound around the outer circumferential surface of the coil 4 in order to prevent the cooling air from leaking to the outside. Then, both side edges 14a of the insulating plate 14 protruding outward from the coil 4 at both ends are inserted into the inner periphery of the cylindrical part 15a of the frame 15 at both ends to assemble the whole, and a resin mold 16 such as epoxy is molded from the outer periphery.
It is constructed by applying.
なおフレーム１５は外周の筒伏部１５ａの内側に断面Ｔ
字状に突出したリブ１５ａを周方向に等間隔を存して複
数個有し、そのリブ１５ｂのところに上記ボルト８を貫
通してナツト９を締付けることにより、コイル４とコイ
ル押え５と一体化するよう固定されている。而して、こ
の発明のリアクトルであれば、コイル４の外周に薄い可
撓性を有する絶縁板１４を密着して巻装し、その両側縁
部１４ａを両端フレーム１５の筒状部内周に差込んで組
立て、その状態で外周から樹脂モールド１６を施こして
構成するので、冷却風が外部へ漏れないことは勿論であ
るが、従来の予め円筒体に成形した絶縁外筒を用いた場
合の如くコイルの巾寸法バラツキによるフレームとの相
関寸法調節が全く不要となつて、従来のような寸法調整
板を用いる必要がなく、非常に組立作業が簡便となる。Note that the frame 15 has a cross section T on the inside of the cylindrical part 15a on the outer periphery.
It has a plurality of ribs 15a projecting in a letter shape at equal intervals in the circumferential direction, and by passing the bolt 8 through the ribs 15b and tightening the nut 9, the coil 4 and the coil holder 5 are integrated. It is fixed to be fixed. Accordingly, in the reactor of the present invention, a thin flexible insulating plate 14 is tightly wound around the outer periphery of the coil 4, and both side edges 14a of the thin flexible insulating plate 14 are attached to the inner periphery of the cylindrical part of the frame 15 at both ends. Since the structure is constructed by carefully assembling and applying a resin mold 16 from the outer periphery in that state, it goes without saying that cooling air does not leak to the outside, but it is different from when using a conventional insulating outer cylinder pre-molded into a cylindrical body. As a result, there is no need to adjust the dimensions relative to the frame due to variations in the width of the coil, and there is no need to use a dimension adjustment plate as in the prior art, making assembly work very simple.
なお、上記第３図及び第４図ではコイル４の外径が規定
寸法に仕上げられた状態を示めしているが、第５図に示
す如くコイル外径寸法が規定寸法以上に大きい場合でも
、そのコイル４の外周に巻装した絶縁板１４が薄く可撓
性を有することで両端フレーム１５の筒状部１５ａ内周
に折曲げるなどして簡単に差し込み可能であり、また、
第６図に示す如く逆にコイル外径が小さい時は巻装した
絶縁板１４とフレーム１５の筒状部１５ａ内周面との間
に間隙が生じるが、組立終了後に全体をエボキシ等の樹
脂モールド１６を施こすことにより該間隙は埋められて
しまうので冷却風の漏れなどの問題は起こらない。In addition, although FIGS. 3 and 4 above show the state in which the outer diameter of the coil 4 is finished to the specified size, even if the outer diameter of the coil is larger than the specified size as shown in FIG. Since the insulating plate 14 wrapped around the outer circumference of the coil 4 is thin and flexible, it can be easily inserted into the inner circumference of the cylindrical part 15a of the frame 15 at both ends by bending it.
On the other hand, when the outer diameter of the coil is small as shown in FIG. 6, a gap is created between the wrapped insulating plate 14 and the inner peripheral surface of the cylindrical part 15a of the frame 15. Since the gap is filled by applying the mold 16, problems such as leakage of cooling air do not occur.
また、上記ポリアミド紙等の絶縁板１４はエボキシ樹脂
モールドにより化学変化を起こしてＦＲＰと略同等の耐
熱、耐水、耐強度に優れたものとなり、コイルの外装板
として十分満足できるようになる。Further, the insulating plate 14 made of polyamide paper or the like is chemically changed by the epoxy resin molding and becomes excellent in heat resistance, water resistance, and strength almost equivalent to FRP, and becomes fully satisfactory as an exterior plate for a coil.
この発明は以上詳述した如く、高価な肉厚の絶縁外筒に
代えて薄い可撓性絶縁板をコイル外聞に密着して巻装し
、その両側縁部を両端フレームの筒状部内周に差込み、
更に外周から樹脂モールドを施こして構成したから、コ
イルの外径及び巾寸法にバラツキがあつても、調整板等
を用〜・ると云つた寸法調整が全く不要となり、組立て
が非常に簡単でその作業能率の向上が図れ、しかも絶縁
板は薄いものでよく、安価で小形軽量化が図れる簡単な
構造のリアクトルが得られる。As described in detail above, in place of an expensive thick insulating outer cylinder, this invention wraps a thin flexible insulating plate tightly around the outer circumference of the coil, and the both edges of the insulating plate are wrapped around the inner periphery of the cylindrical part of the frame at both ends. Insert,
Furthermore, since it is constructed by applying resin molding from the outer periphery, even if there are variations in the outer diameter and width of the coil, there is no need to adjust the dimensions using adjustment plates, etc., making assembly very easy. In addition, the work efficiency can be improved, the insulating plate can be made thin, and a reactor with a simple structure that is inexpensive, compact, and lightweight can be obtained.
第１図は従来例を示す断面図、第２図は同従来例の・一
部拡大した断面斜視図、第３図はこの発明の一実施例を
示す断面図、第４図は同実施例の−部拡大した断面斜視
図、第５図及び第６図は同実施例においてコイルの径寸
法にバラツキがあつた場合のそれぞれ断面図である。
１・・・内芯、２・・・導体、３・・・スペーサ、４・
・・コイル ５・・・コイル押え、６・・・絶縁外筒、
７・・・フレーム、７ａ・・・段部、７ｂ・・・リブ、
８・・・ボルト、９・・・ナツト、１０・・・通風道、
１１・・・絶縁被膜、１２・・・空隙、１３・・・寸法
調整板、１４・・・薄い絶縁板、１４ａ・・・両側縁部
、１５・・・フレーム、１５ａ・・・筒状部、１５ｂ・
・・リブ、１６・・・樹脂モールド。Fig. 1 is a sectional view showing a conventional example, Fig. 2 is a partially enlarged sectional perspective view of the conventional example, Fig. 3 is a sectional view showing an embodiment of the present invention, and Fig. 4 is a sectional view of the same embodiment. FIGS. 5 and 6 are cross-sectional views in which the diameter of the coil is varied in the same embodiment. 1...Inner core, 2...Conductor, 3...Spacer, 4...
...Coil 5...Coil holder, 6...Insulating outer cylinder,
7... Frame, 7a... Step part, 7b... Rib,
8... Bolt, 9... Nut, 10... Ventilation duct,
DESCRIPTION OF SYMBOLS 11... Insulating coating, 12... Gap, 13... Dimension adjustment plate, 14... Thin insulating plate, 14a... Both side edges, 15... Frame, 15a... Cylindrical part , 15b・
...Rib, 16...resin mold.
Claims (1)
カル形に巻付けてコイルを形成し、そのコイルの外周に
薄い可撓性絶縁板を密着して巻装するとともに、その絶
縁板の両側縁部を上記コイルの両端に配されるフレーム
の筒状部内周に差込み、且つその組立状態で外周から樹
脂モールドを施こして構成したリアクトル。1 A coil is formed by winding a conductor in a cylindrical shape around an inner core made of an insulating material, and a thin flexible insulating plate is tightly wound around the outer periphery of the coil, and both edges of the insulating plate are wrapped around the outer periphery of the coil. The reactor is constructed by inserting the parts into the inner periphery of a cylindrical part of a frame arranged at both ends of the coil, and applying resin molding from the outer periphery in the assembled state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9066879A JPS5915364B2 (en) | 1979-07-17 | 1979-07-17 | reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9066879A JPS5915364B2 (en) | 1979-07-17 | 1979-07-17 | reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5615021A JPS5615021A (en) | 1981-02-13 |
| JPS5915364B2 true JPS5915364B2 (en) | 1984-04-09 |
Family
ID=14004908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9066879A Expired JPS5915364B2 (en) | 1979-07-17 | 1979-07-17 | reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915364B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0515246Y2 (en) * | 1986-08-29 | 1993-04-22 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727175Y2 (en) * | 1989-09-14 | 1995-06-21 | ダイニック株式会社 | Back cloth |
-
1979
- 1979-07-17 JP JP9066879A patent/JPS5915364B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0515246Y2 (en) * | 1986-08-29 | 1993-04-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5615021A (en) | 1981-02-13 |
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