JPH0648808Y2 - Common mode choke coil - Google Patents
Common mode choke coilInfo
- Publication number
- JPH0648808Y2 JPH0648808Y2 JP1655689U JP1655689U JPH0648808Y2 JP H0648808 Y2 JPH0648808 Y2 JP H0648808Y2 JP 1655689 U JP1655689 U JP 1655689U JP 1655689 U JP1655689 U JP 1655689U JP H0648808 Y2 JPH0648808 Y2 JP H0648808Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- partition plate
- insulating
- common mode
- mode choke
- 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
Landscapes
- Transformer Cooling (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【考案の詳細な説明】 イ、考案の目的 〔産業上の利用分野〕 本考案はノイズフィルタに用いるコモンモードチョーク
コイルに関し、より詳しくは大電流の電源線に適するコ
モンモードチョークコイルの構造に関する。DETAILED DESCRIPTION OF THE INVENTION A. Purpose of the Invention [Field of Industrial Application] The present invention relates to a common mode choke coil used for a noise filter, and more particularly to a structure of a common mode choke coil suitable for a large current power supply line.
従来、３相のノイズフィルタ用のコモンモードチョーク
コイル（以下単にコイルと記す）は、表面を絶縁処理し
た（通常、絶縁樹脂材を用いた作成したコア絶縁ケース
に収納した）トロイダルコアに、その中央孔を通して３
個の巻線を互いに離して巻き回し、絶縁紙または絶縁ケ
ースと同じ樹脂材からなる巻線間用仕切り板を中央孔に
設けた構造であった。Conventionally, a common mode choke coil (hereinafter simply referred to as a coil) for a three-phase noise filter has a toroidal core whose surface is insulation-treated (usually housed in a core insulating case made of an insulating resin material). Through the central hole 3
The windings are separated from each other and wound, and a partition plate for windings made of the same resin material as the insulating paper or the insulating case is provided in the central hole.
通常コイルに発生する熱は、電流値の自乗に比例し巻線
の電気抵抗値に比例する。従来のコイルは、太い電線
（または断面積の大きい銅条）を用いて巻線の電気抵抗
の値を小さくし、その発熱を抑制していた。又コイル
は、コンデンサなどと共に外部回路接続用端子を備えた
金属製容器に収納され、埋込樹脂により容器内に固定さ
れていた。Usually, the heat generated in the coil is proportional to the square of the current value and is proportional to the electric resistance value of the winding. In the conventional coil, a thick electric wire (or a copper strip having a large cross-sectional area) is used to reduce the electric resistance value of the winding to suppress the heat generation. Further, the coil is housed in a metal container equipped with a terminal for connecting an external circuit together with a capacitor and the like, and is fixed in the container by an embedding resin.
従来のコイルは、コイルまたはコアの寸法が限定されて
いる場合、太い電線では所要の巻回数を確保できず、所
要のインダクタンスを実現できないことがあるという問
題があった。The conventional coil has a problem that if the size of the coil or the core is limited, the required number of turns cannot be secured with a thick electric wire, and the required inductance may not be realized.
又、従来のコイルは、外周部に比べて中央孔部からの放
熱が難しいので、中央孔部の温度は周囲温度に比べて高
温になり、殊に埋込樹脂によりコイル全体を覆って固定
した場合顕著であり、コアの昇温によりフィルタの内部
の温度が上昇し、金属製容器の内部に使用した部品の使
用温度の限界を越してしまう問題があった。Further, in the conventional coil, it is difficult to dissipate heat from the central hole compared to the outer peripheral part, so the temperature of the central hole becomes higher than the ambient temperature, and in particular, the entire coil is fixed by embedding resin. This is conspicuous, and there is a problem that the temperature inside the filter rises due to the temperature rise of the core, and the temperature limit of the components used inside the metal container is exceeded.
ロ．考案の構成 〔課題を解決するための手段〕 本考案は、トロイダルコアの中央孔に設けた巻線間用絶
縁仕切り板に窒化アルミニウムを用いて作成したもので
あることを特徴とし、また窒化アルミニウム製仕切り板
の端面にコイル固定用取付孔を形成したことを特徴とす
る。B. Configuration of the Invention [Means for Solving the Problems] The present invention is characterized in that the insulating partition plate for windings provided in the central hole of the toroidal core is made of aluminum nitride, and the aluminum nitride is also used. It is characterized in that a mounting hole for fixing a coil is formed on an end surface of the partition plate.
即ち本考案は、 1.複数個の巻線をトロイダルコアの中央孔を通し分離し
て巻き回し、該中央孔に巻線間用絶縁仕切り板を設けて
なるコモンモードチョークコイルにおいて、前記絶縁仕
切り板が窒化アルミニウムからなることを特徴とするコ
モンモードチョークコイル。That is, the present invention is as follows: 1. In a common mode choke coil in which a plurality of windings are separately wound around a central hole of a toroidal core, and an insulating partition plate for windings is provided in the central hole, A common mode choke coil whose plate is made of aluminum nitride.
2.絶縁仕切り板の端面に、コイル固定用取付孔を形成し
たことを特徴とする請求項１記載のコモンモードチョー
クコイルである。2. The common mode choke coil according to claim 1, wherein a mounting hole for fixing the coil is formed on an end surface of the insulating partition plate.
窒化アルミニウム製仕切り板は電気絶縁性と、金属アル
ミニウムとほぼ同等の熱伝導特性を持ち、コイルの中央
孔部から外部への放熱を促す。仕切り板は筐体などへの
コイルの取付部材である。The partition plate made of aluminum nitride has an electrical insulating property and a heat conduction characteristic almost equal to that of metallic aluminum, and promotes heat radiation from the central hole of the coil to the outside. The partition plate is a member for attaching the coil to the housing or the like.
第１図は本考案に係るコイルの使用状態を示す横断平面
図であり、第２図は同じく取付板を部分破断し、巻線と
絶縁板の一部を省いて示す斜視図である。FIG. 1 is a cross-sectional plan view showing a state of use of a coil according to the present invention, and FIG. 2 is a perspective view showing a mounting plate partially broken and a winding and an insulating plate partially omitted.
図において、１はトロイダルコア、２はコア絶縁ケース
（以下絶縁ケースと称す）、３は巻線間用絶縁仕切り板
（以下絶縁仕切り板と称す）、４は巻線、５は支持板、
６は取付ねじ棒（およびナット）、7,8は絶縁板であ
る。In the figure, 1 is a toroidal core, 2 is a core insulating case (hereinafter referred to as an insulating case), 3 is an inter-winding insulating partition plate (hereinafter referred to as an insulating partition plate), 4 is a winding wire, 5 is a support plate,
6 is a mounting screw rod (and nut), and 7 and 8 are insulating plates.
コア絶縁ケース２は、第３図に示すように、外周、底面
及び内周に及ぶ複数個（図では３個）の仕切り台21を等
角度間隔をおいて設けた有底二重円筒体の２個からなる
絶縁樹脂製のものであり、二重円筒体の開口部に形成し
た嵌合段部、突部（第１図参照）を嵌合して二重円筒体
内にトロイダルコア１を収納している。As shown in FIG. 3, the core insulating case 2 is composed of a bottomed double cylindrical body in which a plurality of (three in the figure) partitioning blocks 21 extending over the outer circumference, the bottom surface and the inner circumference are provided at equal angular intervals. The toroidal core 1 is made of an insulating resin consisting of two pieces, and the toroidal core 1 is housed in the double cylinder by fitting the fitting step and the protrusion (see FIG. 1) formed in the opening of the double cylinder. is doing.
絶縁ケース２の中央孔（トロイダルコア１の中央孔もあ
る）の仕切り台21上には、嵌合溝22が絶縁ケース２の軸
方向と平行にそれぞれ形成されている。Fitting grooves 22 are formed in parallel with the axial direction of the insulating case 2 on the partition 21 of the central hole of the insulating case 2 (there is also the central hole of the toroidal core 1).
絶縁仕切り板３は窒化アルミニウムで作られており、３
枚の板を放射状にＹ字状に接合した形状で、しかも中央
部が円柱状に膨大され貫通孔31が形成されたものであ
り、長さ寸法は仕切り台21の長さ（絶縁ケース２の軸方
向と平行な方向の長さ）より僅かに大きい。絶縁仕切り
板３は、仕切り台21間に絶縁ケース２の中央孔を通して
巻き回した巻線４（第３図に図示しない）を互いに絶縁
する部材であり、巻線の巻き回し前、または巻き回し後
に、嵌合溝22に嵌合して絶縁ケース２に挿着される。窒
化アルミニウムはアルミナと同等の高い電気絶縁性と機
械的強度を持ち、且つアルミナよりも８〜10倍の金属ア
ルミニウムとほぼ同等の熱伝導性を持つ材料であるの
で、絶縁仕切り板３はコイルの中央孔部の熱を外部に効
率よく伝えることができる。The insulating partition plate 3 is made of aluminum nitride and
This is a shape in which a plurality of plates are radially joined in a Y shape, and the central portion is expanded into a cylindrical shape to form a through hole 31, and the length dimension is the length of the partition table 21 (of the insulating case 2 ). (Length in the direction parallel to the axial direction). The insulating partition plate 3 is a member that insulates the winding 4 (not shown in FIG. 3) wound through the central hole of the insulating case 2 between the partition bases 21 from each other before winding or winding. After that, it is fitted into the fitting groove 22 and inserted into the insulating case 2 . Since aluminum nitride is a material that has the same high electrical insulation and mechanical strength as alumina, and has a thermal conductivity that is approximately 8 to 10 times that of aluminum and approximately the same thermal conductivity as aluminum, the insulating partition plate 3 is used as a coil. The heat of the central hole can be efficiently transmitted to the outside.
支持板５はＬ形に折り曲げた鋼板で、垂直部の幅寸法が
絶縁仕切り板３のＹ字形端面全面の接触できる寸法のも
のであり、中央部に取付ねじ棒６の案内用の切り込み51
が形成されている。支持板５はコイルを収納する金属容
器の底部に垂直部の間隔を絶縁仕切り板３の長さにほぼ
等しくして固着される。The support plate 5 is a steel plate bent into an L shape, and the width dimension of the vertical portion is such that the entire Y-shaped end surface of the insulating partition plate 3 can contact, and the notch 51 for guiding the mounting screw rod 6 is provided at the center portion.
Are formed. The support plate 5 is fixed to the bottom of the metal container that houses the coil with the vertical interval substantially equal to the length of the insulating partition plate 3.
絶縁板７は巻線４の扇形（図では３分円の扇形）端面を
覆い、支持板５と巻線４間を絶縁する。絶縁板８は支持
板５間に敷いてコイルと容器間を絶縁する。The insulating plate 7 covers the fan-shaped (in the figure, fan-shaped three-dimensional circle) end surface of the winding 4, and insulates the support plate 5 from the winding 4. The insulating plate 8 is laid between the support plates 5 to insulate the coil from the container.
支持板５へのコイルの取付けは、コイルの絶縁仕切り板
３の貫通孔31に挿通してナットをはめた取付ねじ棒６
を、支持板５の切り込み51に差し渡して入れ、絶縁仕切
り板３のＹ形端面全面を支持板５に当接し、巻線４の端
部（図示しない）を所要の向きに引き出した後ナットを
軽く締め付けて終了する。The coil is attached to the support plate 5 by inserting it into the through hole 31 of the insulating partition plate 3 of the coil and attaching the nut to it.
Is inserted across the notch 51 of the support plate 5, the entire Y-shaped end surface of the insulating partition plate 3 is brought into contact with the support plate 5, and the end portion (not shown) of the winding wire 4 is pulled out in the required direction, and then the nut is inserted. Tighten lightly to finish.
実施例では３相のコイルを例に述べたが、単相や４相の
コイルでもよく、またコイル収納容器に余裕があり取付
ねじの扱いができる場合には、絶縁仕切り板３の貫通孔
31をねじ孔とし、支持板５に切り込み51の底部に対応し
て透光を形成した取付構造としてもよい。小型のコイル
の場合は１個の支持板５に絶縁仕切り板３の片方の端面
全面を当接して取付けることもできる。In the embodiment, the three-phase coil has been described as an example, but a single-phase coil or a four-phase coil may be used, and if the coil storage container has a margin and the mounting screw can be handled, the through hole of the insulating partition plate 3 is used.
A mounting structure may be used in which 31 is a screw hole, and light is formed in the support plate 5 corresponding to the bottom of the cut 51. In the case of a small coil, one support plate 5 may be attached by abutting the entire one end surface of the insulating partition plate 3.
ハ．考案の効果 以上に説明した構成のコモンモードチョークコイルであ
るから、次に記載する効果を奏する。C. EFFECTS OF THE INVENTION Since the common mode choke coil having the above-described configuration has the effects described below.
コイルの中央孔部に設けた巻線間用絶縁仕切り板が高い
熱伝導性を持つ窒化アルミニウムで作られたものである
から、中央孔部の熱が絶縁仕切り板の端面の当接してい
る支持板に効率よく伝えられて外部へ放出され、したが
ってコイルの中央孔部に生じた温度を従来より低温に維
持でき、フィルタ性能の劣化を軽減できる。Since the inter-winding insulation partition plate provided in the center hole of the coil is made of aluminum nitride with high thermal conductivity, the heat of the center hole is supported by the end surface of the insulation partition plate in contact. The temperature is efficiently transmitted to the plate and discharged to the outside, so that the temperature generated in the central hole of the coil can be maintained at a lower temperature than before, and deterioration of the filter performance can be reduced.
コイルの発熱量が従来より増えても、コイルの中央孔部
に熱が籠もらないので、大電流の場合も巻線の電気抵抗
値を従来ほど小さくする必要がなく細い電線を用いるこ
とができ、したがってコイルは従来より多い巻回数の実
現が容易であり、所要値以上の高水準の特性をも確保で
きる。Even if the amount of heat generated by the coil increases, heat does not collect in the central hole of the coil, so even in the case of a large current, it is not necessary to make the electrical resistance of the winding smaller than before, and a thin wire can be used. Therefore, it is easy to realize the coil with a larger number of windings than the conventional one, and it is possible to secure a high level characteristic of a required value or more.
絶縁仕切り板をコイルの取付けに利用して多量かつ高価
な埋め込み樹脂を省くことができるので、ノイズフィル
タを従来より安価に、軽量に作ることができる。Since the insulating partition plate can be used for mounting the coil and a large amount of expensive embedded resin can be omitted, the noise filter can be made cheaper and lighter than conventional ones.
第１図は本考案に係るコモンモードチョークコイルの使
用状態を示す横断平面図。 第２図は同じく使用状態を一部破断し要部を示す斜視
図。 第３図は本考案に用いられるコア絶縁ケースと、絶縁仕
切り板の組立ての一例を示す斜視図。 第４図は第３図における絶縁仕切り板の外観斜視図であ
る。 １……トロイダルコア、２……コア絶縁ケース、21……
仕切り台、22……嵌合溝、３……巻線間用絶縁仕切り
板、31……貫通孔、４……巻線、５……支持板、51……
切り込み、６……取付ねじ棒、7,8……絶縁板。FIG. 1 is a cross-sectional plan view showing a usage state of a common mode choke coil according to the present invention. FIG. 2 is a perspective view showing the main part of the same usage, partially broken away. FIG. 3 is a perspective view showing an example of assembling a core insulating case and an insulating partition plate used in the present invention. FIG. 4 is an external perspective view of the insulating partition plate in FIG. 1 ... Toroidal core, 2 ... Core insulation case, 21 ...
Partition stand, 22 ... Fitting groove, 3 ... Insulation partition plate for winding, 31 ... Through hole, 4 ... Winding, 5 ... Support plate, 51 ...
Notch, 6 …… Mounting screw rod, 7,8 …… Insulating plate.
Claims (2)
通し分離して巻き回し、該中央孔に巻線間用絶縁仕切り
板を設けてなるコモンモードチョークコイルにおいて、
前記絶縁仕切り板が窒化アルミニウムからなることを特
徴とするコモンモードチョークコイル。1. A common mode choke coil comprising a plurality of windings, which are separately wound through a central hole of a toroidal core, and an insulating partition plate for windings is provided in the central hole.
A common mode choke coil, wherein the insulating partition plate is made of aluminum nitride.
孔を形成したことを特徴とする請求項１記載のコモンモ
ードチョークコイル。2. The common mode choke coil according to claim 1, wherein a mounting hole for fixing a coil is formed on an end surface of the insulating partition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1655689U JPH0648808Y2 (en) | 1989-02-15 | 1989-02-15 | Common mode choke coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1655689U JPH0648808Y2 (en) | 1989-02-15 | 1989-02-15 | Common mode choke coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02108311U JPH02108311U (en) | 1990-08-29 |
| JPH0648808Y2 true JPH0648808Y2 (en) | 1994-12-12 |
Family
ID=31229592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1655689U Expired - Lifetime JPH0648808Y2 (en) | 1989-02-15 | 1989-02-15 | Common mode choke coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648808Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3351993B2 (en) * | 1996-06-25 | 2002-12-03 | 日立フェライト電子株式会社 | Magnetic core and zero-phase reactor |
| JP4485740B2 (en) * | 2002-12-06 | 2010-06-23 | 東光株式会社 | Multilayer electronic components |
| DE10308010A1 (en) * | 2003-02-25 | 2004-09-09 | Epcos Ag | Insulating part, toroidal core, toroidal core choke and method for producing the toroidal core choke |
| DE102004048966A1 (en) * | 2004-10-07 | 2006-04-13 | Epcos Ag | Device for electrical isolation, toroidal core choke and method for producing the toroidal core choke |
| JP6161206B2 (en) * | 2014-03-05 | 2017-07-12 | コーセル株式会社 | Noise filter |
-
1989
- 1989-02-15 JP JP1655689U patent/JPH0648808Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02108311U (en) | 1990-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008098209A (en) | Insulation structure of coil | |
| JPH07220950A (en) | Inductance element | |
| JP5582902B2 (en) | Noise filter juxtaposed insulation case structure, coil holder, and noise filter | |
| JP2625477B2 (en) | Ignition coil | |
| US5748064A (en) | Low profile reactor | |
| JPH0648808Y2 (en) | Common mode choke coil | |
| US3179908A (en) | Heat exchange means for electromagnetic devices | |
| JP3463260B2 (en) | Coil parts and their mounting structure | |
| JP3672792B2 (en) | Line filter | |
| JPH1041150A (en) | Molded coil | |
| JPH0244506Y2 (en) | ||
| JP3568218B2 (en) | Box noise filter | |
| CN214897999U (en) | Magnetic assembly, inductor and transformer | |
| JP2547907Y2 (en) | Choke coil device for large current | |
| WO1997005632A1 (en) | Bobbin assembled transformers | |
| CN215868867U (en) | Inductor | |
| CN213583439U (en) | Inductor assembly and electronic equipment | |
| JPS6350829Y2 (en) | ||
| JPH0624995Y2 (en) | Trance | |
| JP6994425B2 (en) | Noise filter | |
| JPH0536260Y2 (en) | ||
| JPH021951Y2 (en) | ||
| JPS5826494Y2 (en) | coil element | |
| JPS622736Y2 (en) | ||
| JP2511451Y2 (en) | High voltage transformer |