JPS59198708A - Magnetic core for choke coil - Google Patents
Magnetic core for choke coilInfo
- Publication number
- JPS59198708A JPS59198708A JP7266483A JP7266483A JPS59198708A JP S59198708 A JPS59198708 A JP S59198708A JP 7266483 A JP7266483 A JP 7266483A JP 7266483 A JP7266483 A JP 7266483A JP S59198708 A JPS59198708 A JP S59198708A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- inductance
- current
- choke coil
- impregnated
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/04—Cores, Yokes, or armatures made from strips or ribbons
Abstract
Description
【発明の詳細な説明】 Ａ〈発明はチョーク用磁心の改良に関するものである。[Detailed description of the invention] A: The invention relates to an improvement of a magnetic core for a choke.
従来、チ］−り用磁心としては、ギャップ付きフエライ
１〜．珪素鋼、ダス１〜コアなどが用いられていた。ま
た、最近になりアモルファス磁心をチョークに使用しよ
うとする試みが報告されている。Conventionally, gapped magnetic cores 1-. Silicon steel, Das 1 to Core, etc. were used. Also, recently, attempts to use amorphous magnetic cores in chokes have been reported.
最近になり電子機器等の発ｊヱに伴なってスイッチング
電源の使用が増加し、出力平消用ヂョークの使用が増加
している。しかし、通常スイッチング電源に使用するチ
ョークは、低電流から高電流までインダクタンスがほぼ
一定のものが使用されるため、負荷がほどんとない１代
電流ＩＩ冒こ出力型Ｊｆが上背するという欠点がある。Recently, with the increase in the number of electronic devices, the use of switching power supplies has increased, and the use of output neutralizing jogs has also increased. However, chokes used in switching power supplies usually have a nearly constant inductance from low current to high current, so the disadvantage is that the first generation current II high output type Jf, which has a small load, is expensive. There is.
これを防ぐため通常は適切な負荷を接続し、ある程度た
えず電流が流れるようにしている。To prevent this, an appropriate load is usually connected so that a certain amount of current flows constantly.
また別の方法としてギレップｆ」さ磁心のギトツブ近傍
に高透磁率の磁心を配置し、低電流［１１１のインダク
タンスが上昇覆るＬ７特性を承り磁心を１・力用するこ
とが提案されている。As another method, it has been proposed to place a magnetic core with high magnetic permeability near the core of the Gillepf magnetic core, and to use the magnetic core 1.0 mm in accordance with the L7 characteristic that the inductance of the low current [111] rises.
このような磁心は、低電流１１＋ｉはインダクタンスは
高いが、ある電流以上て磁心が飽和するまではほぼ一定
のインダクタンスを示づ゛。また、インダクタンスが落
ちる電流も小さい。Such a magnetic core has a high inductance at low currents 11+i, but exhibits a nearly constant inductance until the magnetic core saturates above a certain current. Also, the current at which the inductance drops is small.
しかしながら、理想的にはむしろある電流以上でインダ
クタンスが急１泣（こ落ちるよりも、だらだらと電流の
増加に伴なってインダクタンスが落ちていくものの方か
、たえず流す電流を（よとんどなくり゛ことが−Ｃさ好
ましい。However, ideally, rather than the inductance suddenly dropping at a certain current level, it would be better to have the inductance drop slowly as the current increases, or to have a constant flow of current. -C is preferred.
またアモルファス閉磁路磁心は、イのままでは弱い磁場
で飽和してしまうので、チョークに使用りる場合１−ト
ップをイ」（］な（づればならないが、この場合低電流
時のインダクタンスは高くはならない。In addition, the amorphous closed magnetic circuit core will be saturated in a weak magnetic field if left as is, so when used in a choke, the inductance at low currents will not be high. No.
本発明は上記従来技術の欠点を改良し、チョークに１史
用した場合、電流の増加に伴／よって忠激にインダクタ
ンスの落ちるのを防さ゛、かつ低電流時のインク・クタ
ンスの大きいチョーク用磁心を提供りることを］］的と
゛リ−る。The present invention improves the above-mentioned drawbacks of the prior art, and when used in a choke for a period of time, can faithfully prevent the inductance from dropping as the current increases, and can also be used for chokes with large ink-tance at low currents. Our goal is to provide magnetic cores.
本発明の要点は、従来複合磁心などににり得られた低電
流ｎニアにインダクタンスの人きい１字特性を示す磁心
をアモルファス単一の磁心により作製し、なおかつ巻線
に流れる電流の増加に伴なうインダクタンスの減少の小
さいチョーク用磁心を得たことにある。The key point of the present invention is to fabricate a magnetic core using a single amorphous core that exhibits a low current n-near inductance characteristic, unlike conventional composite magnetic cores, and to increase the current flowing through the windings. The object of the present invention is to obtain a magnetic core for a choke with a small decrease in inductance.
樹脂どしては、接着強度の強いエポキシ系樹脂を用いる
と強度的により好ましい。また更に入電流まで透磁率が
落すないようにづ−るためには、磁心の一部に部分的に
ギトツブをＷＱ ４Ｊると良い。As the resin, it is more preferable to use an epoxy resin with strong adhesive strength. Furthermore, in order to prevent the magnetic permeability from decreasing until the input current is reached, it is recommended to partially add a groove to a part of the magnetic core.
本発明による磁心は、特にスイッチング電源の出力平清
用チョークに使用した揚台、ぞの効果が著しく発揮され
、出力電圧の負荷電？Ｍ、による低電流時の変動が非常
に小さくなる。The magnetic core according to the present invention is particularly effective when used in the output choke of a switching power supply, and has a remarkable effect on the load voltage of the output voltage. The fluctuation due to M at low current becomes very small.
以下、本発明を実施例に従って説明する。Hereinafter, the present invention will be explained according to examples.
実施例１
第１図は本発明による磁心のＩＮ ）Ｍの一例を示した
図である。磁心は樹脂により含浸し硬化させている。Embodiment 1 FIG. 1 is a diagram showing an example of a magnetic core IN)M according to the present invention. The magnetic core is impregnated with resin and hardened.
実施例２
第２図は本発明による磁心と、通常の１−掌性性を示す
複合磁心の同一−形状のインダクタンスと電流の関係を
示した図である。通常の１字特性を示す磁心ど比べて、
電流がかなり高い領域までインダクタンスが高いことが
わかる。また、一部に部分的にギャップを設けた場合１
はギ１１ツブ間隔を適当に選ぶことにより更に高い電流
までインダクタンスが低下しないようにできる。Embodiment 2 FIG. 2 is a diagram showing the relationship between inductance and current for the same shape of a magnetic core according to the present invention and a conventional composite magnetic core exhibiting 1-handedness. Compared to a magnetic core that exhibits normal single-character characteristics,
It can be seen that the inductance is high even in the region where the current is quite high. In addition, if a gap is provided partially, 1
By appropriately selecting the gear spacing, the inductance can be prevented from decreasing even at higher currents.
本発明の磁心を用いることにより、チョークコイルとし
で使用しＩこ場０の、インクククンス！、−１特性が改
善され、１【ｊ、い電流まく・インダクタンスの落ちな
いヂ］−クコイルを作製づることが可能Ｃある。By using the magnetic core of the present invention, it can be used as a choke coil and has zero ink and space! , -1 characteristics are improved, and it is possible to fabricate a 1[j, high current flow, no drop in inductance]-coil.
第１図は本発明−による磁心の構造の一実施例４示す図
、第２図は本発明による磁心ど通常の１字１７１性を示
す複合磁心の同一形状の場合のインダクタンスと電流を
示した図である。
手心■ネ山正Ｆ１：
昭和５９年５ 月１４日
昭和ｊう８イ１ 特５′Ｆ１泊 第７２６６４月発明の
名称 チョークコイル用磁心
補正を−づる省
事イ′１どのＢ１１１糸 特ム′「出騨］人１１所
東京都千代１１１区丸ノ内Ｔ丁目１番２号名拘−（！１
０８） Ｆｊ １″ＬＬ金Ｉ株ｊ（公判代表者 ’ｔ”
Ｊ ５■ｊ−典 夫
代理人
居所 東京都千代１１１区丸の内−−Ｊ’ ｌ］１ Ｔ
ｉ ２弓１」 ３′７ 金 属 ４
木 １（会 ネ１ 内電話 東京２ｆｉｊ
ｌ−ＡＧ４２ （代表）氏名 （８００１） 弁
理−ト と）１ 石 橘 馬ン市正の対象
補止の内容
１、明細用の［発明の詳細な説明−１の（１１１の記載
を下記の通り訂正づる。
記
（１）明玲ｉ１１ 占第３口笛４ 行＋ＨＬ’： ！Ｊ
？−＋−の１流り電ｉ！：ｉ。
を（Ｊど／υど４Ｌ＜リ−１を［流し【おく電流を小さ
くづる４（こ訂正りる。
（２）同店第４口笛１１１′ｊの後に次の文４種入りる
。
［アモルファＩＡ Ｊ”ｌとして、−例どしｌ：’ ｌ
’ （ｒＪＮ ｊ７，５ Ｓ ｌ １６ Ｂ ｑなる組
成をｊδ’ｊ、ｌ：”１周波）Ｒ解にＣ溶解後母合金を
作製した。１１“ｊ ’３ ：ｔ′Ｌだ１５１合金を加
熱溶ｒｉ’ｉｉ後高速て回転りる。洞１１−ルーに溶湯
を１す１出し、板１７約２０Ｉノｎｌ ９幅杓（： 、
！＋ ＩＩＩ Ｉｌｌのア七ルファスリボンを１胃だ
１．１′７られたリホンヲ巻回しタト径２０１ｎｌｌｌ
、内＜’Ｌ １２ ｍ ｎ＋ 、 ＨＨ′：Ｉさ Ｇ、
！１ｍ１ｌ＋の大きさの１−ロイタルニ） ｊノを作製
した。これに−「ボギシ系樹脂を含）ブし、ｓ°！空中
ＣＩＢ２泡後１熱硬化させた。」
以上Fig. 1 is a diagram showing Embodiment 4 of a magnetic core structure according to the present invention, and Fig. 2 shows inductance and current when the magnetic core according to the present invention has the same shape as a composite magnetic core exhibiting normal 1-character characteristics. It is a diagram. Teshin Neyama Masa F1: May 14, 1980 Showa J8 I1 Special 5'F 1 night 72664 April Title of invention Ministry of affairs for making magnetic core correction for choke coils '1 Which B111 thread Special ' Idashi] 11 people
1-2 Marunouchi T-chome, Chiyo 111-ku, Tokyo (!1
08) Fj 1″LL Gold I Sharej (Trial Representative 't'
J 5■j-Nori Husband's agent residence Marunouchi, Chiyo 111-ku, Tokyo--J' l] 1 T
i 2 bow 1"3'7 metal 4
Thurs 1 (Meeting 1 Internal phone Tokyo 2fij
l-AG42 (Representative) Name (8001) Patent Attorney - To) 1 Ishi Tachibana Ma Ichimasa's subject amendment content 1, detailed description of the invention - 1 (111) as follows: Correction: Record (1) Meirei i11 Zhan No. 3 whistle 4 line + HL': !J
? -+-'s 1st current i! :i. (Jdo / υdo 4L < Lee - 1 [flowing] make the current smaller 4 (correct this). (2) After the fourth whistle 111'j of the store, the following four types of sentences are entered. [Amorpha IA J"l as -example l:' l
' (rJN j7,5 S l 16 B q composition jδ'j, l: "1 frequency) A master alloy was prepared after C was melted into the R solution. 11 "j '3: t'L 151 alloy was heated. It rotates at high speed after ri'ii. Pour the molten metal one by one into the cavity 11-lou, and pour the molten metal into the plate 17, approximately 20 inches wide, using a 9-width ladle (: ,
! + III Ill's a7alpha ribbon is wound around a ribbon with a diameter of 1.1'7 per stomach, 201nllll.
, inside<'L 12 m n+ , HH':Isa G,
! 1-reutarni) with a size of 1 ml+ was prepared. This was bubbled with ``bogishi-based resin'', and after 2 bubbles of CIB in the air, it was heat-cured.
Claims (1)
をイδイ脂で含浸したことを特徴とするチョークコイル
用磁心。 ２、エポキシ系（５１脂で含浸したことを特徴とする！
１７１許請求の範囲第１項記載のチョークコイル用磁心
、。 ３、磁心の一部に磁心断面の途中までギレップを；シリ
たこと／！Ｚ特徴どづるＱ！ｒ ａ’ｌ請求の範囲第１
項ならびに第２項記載のチョークコイル用磁心。 １、スイッチング電源の出力平滑用チョークに使用した
ことを特１１′ｉとづ−る９“３５′Ｆ請求の範囲第１
Ｊｉ。 第２項ならびに第３項記載のチョークコイル用磁心。[Scope of Claims] 1. A magnetic core for a choke coil, characterized in that a closed magnetic circuit magnetic core is made of an amorphous material with positive magnetostriction and impregnated with a fat. 2. Epoxy system (characterized by being impregnated with 51 fat!
171. A magnetic core for a choke coil according to claim 1. 3. GILLEP was applied to a part of the magnetic core up to the middle of the cross section of the magnetic core. Z Feature Dozuru Q! r a'l Claim 1
A magnetic core for a choke coil according to paragraphs 1 and 2. 1. Claim 1 of 9"35'F, which specifies that it is used as an output smoothing choke of a switching power supply.
Ji. The magnetic core for a choke coil according to the second item and the third item.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7266483A JPS59198708A (en) | 1983-04-25 | 1983-04-25 | Magnetic core for choke coil |
| GB08410543A GB2139008B (en) | 1983-04-25 | 1984-04-25 | Amorphous wound core |
| DE19843415435 DE3415435A1 (en) | 1983-04-25 | 1984-04-25 | THROTTLE COIL AND AMORPHER WINDING CORE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7266483A JPS59198708A (en) | 1983-04-25 | 1983-04-25 | Magnetic core for choke coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59198708A true JPS59198708A (en) | 1984-11-10 |
Family
ID=13495853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7266483A Pending JPS59198708A (en) | 1983-04-25 | 1983-04-25 | Magnetic core for choke coil |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS59198708A (en) |
| DE (1) | DE3415435A1 (en) |
| GB (1) | GB2139008B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100443233B1 (en) * | 2001-06-12 | 2004-08-04 | 학교법인 청석학원 | Plastic core for power supplies |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3603473A1 (en) * | 1986-02-05 | 1987-08-06 | Flowtec Ag | Method and device for producing magnetic annular cores (toroidal cores) |
| DE3608519A1 (en) * | 1986-03-14 | 1987-09-17 | Philips Patentverwaltung | Coil core |
| JP2698369B2 (en) * | 1988-03-23 | 1998-01-19 | 日立金属株式会社 | Low frequency transformer alloy and low frequency transformer using the same |
| US5443664A (en) * | 1988-11-16 | 1995-08-22 | Hitachi Metals, Ltd. | Surge current-suppressing circuit and magnetic device therein |
| DE9001592U1 (en) * | 1990-02-12 | 1990-05-17 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
| US5037706A (en) * | 1990-02-27 | 1991-08-06 | Asea Brown Boveri, Inc. | Laminated strips of amorphous metal |
| WO2000017897A1 (en) | 1998-09-17 | 2000-03-30 | Vacuumschmelze Gmbh | Current transformer with a direct current tolerance |
| EP1129459B1 (en) | 1998-11-13 | 2004-06-02 | Vacuumschmelze GmbH | Use of a magnetic core for a current transformer, method for the production of a magnetic core and current transformer with a magnetic core |
| DE10234979A1 (en) * | 2002-07-31 | 2004-02-12 | Epcos Ag | Inductance core has a ring shaped with a profiled radial slot produced in sintered material to produce a non linear characteristic |
| CN103128039B (en) * | 2011-12-01 | 2014-11-05 | 上海电气集团股份有限公司 | Coating method of winding amorphous iron core insulating coating |
| CN106158338B (en) * | 2015-04-20 | 2018-07-24 | 上海飞晶电气股份有限公司 | A kind of manufacturing method of amorphous alloy core with ultra-thin epoxy coating |
| WO2020070302A1 (en) * | 2018-10-05 | 2020-04-09 | Abb Schweiz Ag | Magnetic core arrangement, inductive device and installation device |
| DE102020120430A1 (en) * | 2020-08-03 | 2022-02-03 | Florian Geling | Choke for power electronics |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7511398L (en) * | 1974-10-21 | 1976-04-22 | Western Electric Co | MAGNETIC DEVICE |
| DE2913741A1 (en) * | 1979-04-05 | 1980-10-09 | Philips Patentverwaltung | Toroidal core for LF transformer - consists of amorphous ferromagnetic tape coated in adhesive and wound into desired shape |
| US4451876A (en) * | 1981-06-19 | 1984-05-29 | Hitachi Metals, Ltd. | Switching regulator |
| NO824096L (en) * | 1981-12-11 | 1983-06-13 | Westinghouse Electric Corp | MAGNETIC CORE FOR ELECTRICAL INDUCTION DEVICE |
-
1983
- 1983-04-25 JP JP7266483A patent/JPS59198708A/en active Pending
-
1984
- 1984-04-25 DE DE19843415435 patent/DE3415435A1/en active Granted
- 1984-04-25 GB GB08410543A patent/GB2139008B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100443233B1 (en) * | 2001-06-12 | 2004-08-04 | 학교법인 청석학원 | Plastic core for power supplies |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8410543D0 (en) | 1984-05-31 |
| GB2139008B (en) | 1986-09-17 |
| DE3415435A1 (en) | 1984-10-25 |
| GB2139008A (en) | 1984-10-31 |
| DE3415435C2 (en) | 1989-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59198708A (en) | Magnetic core for choke coil | |
| JP2018019062A (en) | Inductor | |
| JPS6015908A (en) | Magnetic core | |
| DE2261499A1 (en) | MAGNETIC CIRCLE FOR AN ELECTROACOUSTIC CONVERTER | |
| JPS6010605A (en) | Permanent magnet for inductance element | |
| JP5082293B2 (en) | Inductance component and manufacturing method thereof | |
| JPH10241969A (en) | Inductance device | |
| JPS6035218Y2 (en) | coil device | |
| JPS5576041A (en) | Amorphous alloy | |
| JPS58106811A (en) | Magnetic core | |
| KR102093153B1 (en) | Inductor | |
| JP2747216B2 (en) | Thin film magnetic head | |
| JPS60178610A (en) | Choke coil | |
| JPS6122023B2 (en) | ||
| JP2831761B2 (en) | Amorphous alloy ribbon and core for saturable reactor using it | |
| JP2023139568A (en) | Inductor and dc/dc converter including the same | |
| JPH01115108A (en) | Variable inductance coil | |
| JPS59145513A (en) | Magnetic core | |
| RU2041514C1 (en) | Transformer | |
| JPS60218445A (en) | Resin bonded rare earth element-cobalt magnet | |
| JP2001085257A (en) | Choke coil core and its manufacture | |
| JPS63211604A (en) | Yoke component | |
| JPS59129404A (en) | Inductance element | |
| JPS61260490A (en) | Magnetic bubble memory device | |
| JPH1116733A (en) | Noise filter |