JPH0644123U - Toroidal coil - Google Patents
Toroidal coilInfo
- Publication number
- JPH0644123U JPH0644123U JP7999692U JP7999692U JPH0644123U JP H0644123 U JPH0644123 U JP H0644123U JP 7999692 U JP7999692 U JP 7999692U JP 7999692 U JP7999692 U JP 7999692U JP H0644123 U JPH0644123 U JP H0644123U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- toroidal
- radiator
- toroidal coil
- winding
- 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
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
(57)【要約】
【目的】 トロイダルコイルの温度上昇を抑制する。
【構成】 多数の放熱フィンを持つ合成樹脂製の放熱器
（３）をコイルの表面に取り付ける。この合成樹脂の材
料は、弾力性に富み、接着性の良い樹脂（ＰＯＭ樹脂、
変性ＰＰＥ樹脂など）に高熱伝導性セラミック（Ａｌ
Ｎ、Ａｌ2 Ｏ3 など）粉末を混入して熱伝導性を高めた
ものである。
【効果】 トロイダルコイルの発熱による電気的特性の
劣化を考えなくともよいので、トロイダルコイルの設計
が容易である。
(57) [Summary] [Purpose] To suppress the temperature rise of the toroidal coil. [Structure] A radiator (3) made of synthetic resin having a large number of radiator fins is attached to the surface of the coil. The material of this synthetic resin is a resin (POM resin,
High thermal conductivity ceramic (Al
(N, Al 2 O 3 etc.) powder is mixed to enhance the thermal conductivity. [Effect] Since it is not necessary to consider deterioration of electric characteristics due to heat generation of the toroidal coil, the toroidal coil can be easily designed.
Description
【０００１】[0001]
この考案は、トロイダルコアに巻線を施したトロイダルコイルに関するもので ある。 This invention relates to a toroidal coil in which a toroidal core is wound.
【０００２】[0002]
ラインフィルタ用のチョークコイルの多くはトロイダルコイルである。トロイ ダルコイルには、トロイダル圧粉コアに１個のの巻線を施したノーマルモードコ イルと、トロイダルフェライトコアに２個または３個の巻線を施したコモンモー ドコイルがある。これらのトロイダルコイルは、巻回上がりのままで、必要な場 合は台座と組み合わせて所定個所に配置されていた。 Most choke coils for line filters are toroidal coils. There are two types of toroidal coils: a normal mode coil with one winding on a toroidal dust core, and a common mode coil with two or three windings on a toroidal ferrite core. These toroidal coils were wound in the as-rolled state and, if necessary, were combined with the pedestal and placed at the prescribed locations.
【０００３】[0003]
しかしながら、一般にトロイダルコイルは、巻線の電気抵抗とコアの磁性損失 とにより発熱する。従来、この発熱を積極的に放散させる手段を講ずることはな く、トロイダルコイルは常温よりも高温であり、この均衡状態において所要の機 能をもつように設計されていた。温度上昇に伴う特性劣化を補うためにコアを大 形にし、巻回数を増やす必要があった。しかも、コイル巻線の温度上昇が、他の 回路部品に悪影響を与えるという問題があった。 However, generally, the toroidal coil generates heat due to the electric resistance of the winding and the magnetic loss of the core. Conventionally, no measures have been taken to actively dissipate this heat generation, and the toroidal coil has been designed to have the required function in this equilibrium state because it is at a temperature higher than room temperature. It was necessary to make the core larger and increase the number of windings in order to compensate for the characteristic deterioration due to temperature rise. Moreover, there is a problem that the temperature rise of the coil winding adversely affects other circuit components.
【０００４】 そこで、本考案の技術的課題は、コイル巻線の温度上昇を抑制するトロイダル コイルを得ることにある。Therefore, the technical problem of the present invention is to obtain a toroidal coil that suppresses the temperature rise of the coil winding.
【０００５】[0005]
本考案によれば、トロイダルコアにコイル巻線を施したトロイダルコイルにお いて、複数の放熱フィンが形成された放熱器を、前記コル巻線をおおうように取 り付けたことを特徴とするトロイダルコイルが得られる。 According to the present invention, in a toroidal coil in which a coil winding is applied to a toroidal core, a radiator having a plurality of heat radiation fins is attached so as to cover the coll winding. A toroidal coil is obtained.
【０００６】[0006]
放熱器を介してコイル巻線に発生する熱が効率よく外部へ放散することにより 、コイル巻線の熱均衡点が低下する。 The heat generated in the coil windings via the radiator is efficiently dissipated to the outside, thereby lowering the heat balance point of the coil windings.
【０００７】[0007]
図１には、本考案の一実施例によるトロイダルコイルが示され、縦置きの三相 用のものを示す分解斜視図である。図では巻線１を簡略に示し、その端部を図示 しない。本実施例によるトロイダルコイルは、同形同寸の２個の台座分割体２か らなる箱形台座と組み合わせて外周面に放熱器３を取り付けた三相用トロイダル コモンモードのチョークコイルである。 FIG. 1 is an exploded perspective view showing a toroidal coil according to an embodiment of the present invention, which is a vertically installed three-phase coil. In the figure, the winding 1 is simply shown and its ends are not shown. The toroidal coil according to this embodiment is a three-phase toroidal common mode choke coil in which a radiator 3 is attached to the outer peripheral surface in combination with a box-shaped pedestal composed of two pedestal divided bodies 2 of the same shape and size.
【０００８】 放熱器３は、ポリアセタール（ＰＯＭ）樹脂、変性ポリフェニレンエーテル（ ＰＰＥ）樹脂などの弾力性に富み、接着性のよい合成樹脂に窒化アルミ、アルミ ナなどの高熱伝導性セラミックの粉末を混入して熱伝導性を改善した合成樹脂材 で作ったもので、コイル本体のほぼ四半周の円弧薄板の外面に放射状に板形放熱 フィン４を多数設け、円弧辺縁に複数個の掛合片５をそれぞれ垂設した構造であ る。なお、掛合片５は僅かに内側に向けて延びている。The radiator 3 has high elasticity such as polyacetal (POM) resin and modified polyphenylene ether (PPE) resin, and a highly adhesive synthetic resin mixed with powder of high heat conductive ceramic such as aluminum nitride and alumina. It is made of a synthetic resin material with improved thermal conductivity, and a large number of plate-shaped heat radiation fins 4 are provided radially on the outer surface of an arc thin plate of about a quarter circumference of the coil body, and a plurality of engaging pieces 5 are provided on the arc edge. It has a structure in which The engagement piece 5 extends slightly inward.
【０００９】 コイル本体は、仕切台６の１個が真上にあり、２個の巻線１の外周面がほぼ露 出するようにしてコア絶縁ケースと一体であるＹ形中央仕切板７（図では一部を 図示）の両端中心で台座に支持されている。上方にある巻線１に放熱器３を、図 示したように掛合片５で軸方向に挾持して被せるように取り付けて掛合片５の部 分に接着剤を塗付して固着する。放熱器３の内面に、高熱伝導性セラミック粉末 を混ぜた接着剤を厚く塗って放熱器３をコイル巻線１に固着してもよい。In the coil body, one partition 6 is located right above, and the Y-shaped central partition 7 (which is integrated with the core insulating case 7 so that the outer peripheral surfaces of the two windings 1 are almost exposed). It is supported by the pedestal at the center of both ends (in the figure, a part is shown). The radiator 3 is attached to the upper winding 1 so as to be sandwiched in the axial direction by the engaging piece 5 as shown in the drawing, and an adhesive is applied to the portion of the engaging piece 5 to fix it. The radiator 3 may be fixed to the coil winding 1 by thickly applying an adhesive mixed with high thermal conductive ceramic powder to the inner surface of the radiator 3.
【００１０】 放熱器３は、可撓性のある合成樹脂製であるから、曲率の若干異なる外周面に も装着できる利点がある。Since the radiator 3 is made of a flexible synthetic resin, there is an advantage that it can be attached to the outer peripheral surface having a slightly different curvature.
【００１１】 図２は、本考案の他の実施例によるトロイダルコイルで、基板型ノイズフィル タに用いるため横置きにした場合のトロイダルコモンモードチョークコイルを示 している。巻回上がりのコイル本体の２個の巻線８の円環部にそれぞれ放熱器９ （片方は取り外して示す）を取り付けたトロイダルコイルである。FIG. 2 is a toroidal coil according to another embodiment of the present invention, showing a toroidal common mode choke coil in a horizontal position for use in a substrate type noise filter. It is a toroidal coil in which a radiator 9 (one of which is removed and shown) is attached to each of the annular portions of the two windings 8 of the wound coil body.
【００１２】 放熱器９は、図１で説明したと同様の合成樹脂材で作られており、コイル巻線 ８の円環部よりも若干長い部分円環薄板の表面に等間隔を置いて板形放熱フィン １０を設け、掛合片１１を内周縁中央部と外周縁両端近傍の合計３個所に垂設し た構造である。掛合片１１は、巻線８の内・外周面に当接した放熱器９を位置決 めし固定する。The radiator 9 is made of the same synthetic resin material as that described with reference to FIG. 1, and is a plate which is slightly longer than the ring portion of the coil winding 8 and is evenly spaced on the surface of the partial ring thin plate. The heat radiation fins 10 are provided, and the engaging pieces 11 are vertically provided at a total of three locations near the center of the inner peripheral edge and both ends of the outer peripheral edge. The engagement piece 11 positions and fixes the radiator 9 which is in contact with the inner and outer peripheral surfaces of the winding 8.
【００１３】 本考案のトロイダルコイルは放熱器９付きであるから、四隅に脚のあるコイル 載置絶縁台を用いて高密度実装にした基板型ノイズフィルタに適応され、トロイ ダルコイルの温度上昇を抑制できる。Since the toroidal coil of the present invention is equipped with a radiator 9, it is applied to a board-type noise filter that is densely mounted using a coil mounting insulating table with legs at four corners, and suppresses the temperature rise of the toroidal coil. it can.
【００１４】[0014]
この考案によれば、合成樹脂製の放熱器を取り付けた構造であるから、コイル 巻線の絶縁を損う惧れがなく、重量の増加は少なく、取扱いが容易である。しか も、設計通りの機能を発揮でき、他の電子部品に悪影響を及ぼすことの少ない高 品質のトロイダルコイルを提供できる。 According to this invention, since the radiator made of synthetic resin is attached, there is no fear of impairing the insulation of the coil winding, the increase in weight is small, and the handling is easy. However, it is possible to provide a high-quality toroidal coil that can function as designed and that does not adversely affect other electronic components.
【図１】この考案の一実施例によるトロイダルコイルを
示す分解斜視図である。FIG. 1 is an exploded perspective view showing a toroidal coil according to an embodiment of the present invention.
【図２】この考案の他の実施例によるトロイダルコイル
を基板型ノイズフィルタに使用した状態を示す分解斜視
図である。FIG. 2 is an exploded perspective view showing a state where a toroidal coil according to another embodiment of the present invention is used in a substrate type noise filter.
１，８ コイル巻線 ２ 台座分割体 ３，９ 放熱器 ４，１０ 放熱フィン ５，１１ 掛合片 ６ 仕切台 ７ 中央仕切板 1,8 Coil winding 2 pedestal divided body 3,9 Radiator 4,10 Radiating fin 5,11 Engagement piece 6 Partition stand 7 Central partition plate
Claims (1)
ロイダルコイルにおいて、複数の放熱フィンが形成され
た放熱器を、前記コル巻線をおおうように取り付けたこ
とを特徴とするトロイダルコイル。1. A toroidal coil having a toroidal core having a coil winding, wherein a radiator having a plurality of heat radiation fins is attached so as to cover the cor winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7999692U JP2584115Y2 (en) | 1992-11-19 | 1992-11-19 | Toroidal coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7999692U JP2584115Y2 (en) | 1992-11-19 | 1992-11-19 | Toroidal coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0644123U true JPH0644123U (en) | 1994-06-10 |
| JP2584115Y2 JP2584115Y2 (en) | 1998-10-30 |
Family
ID=13705915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7999692U Expired - Lifetime JP2584115Y2 (en) | 1992-11-19 | 1992-11-19 | Toroidal coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2584115Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7889501B2 (en) | 2008-08-05 | 2011-02-15 | Seiko Epson Corporation | Coil assembly, switching power supply, and projector |
| JP2018022736A (en) * | 2016-08-02 | 2018-02-08 | 株式会社豊田自動織機 | Cooling structure of toroidal coil |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101251428B1 (en) | 2011-12-08 | 2013-04-08 | 주하(주) | Trnasformer |
| DE102021122769A1 (en) | 2021-09-02 | 2023-03-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Converter of an at least partially electrically driven motor vehicle and motor vehicle |
-
1992
- 1992-11-19 JP JP7999692U patent/JP2584115Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7889501B2 (en) | 2008-08-05 | 2011-02-15 | Seiko Epson Corporation | Coil assembly, switching power supply, and projector |
| JP2018022736A (en) * | 2016-08-02 | 2018-02-08 | 株式会社豊田自動織機 | Cooling structure of toroidal coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2584115Y2 (en) | 1998-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980722 |