JP2814949B2 - Line filter - Google Patents

Line filter

Info

Publication number
JP2814949B2
JP2814949B2 JP7094865A JP9486595A JP2814949B2 JP 2814949 B2 JP2814949 B2 JP 2814949B2 JP 7094865 A JP7094865 A JP 7094865A JP 9486595 A JP9486595 A JP 9486595A JP 2814949 B2 JP2814949 B2 JP 2814949B2
Authority
JP
Japan
Prior art keywords
core
bobbin
hole
cover
pair
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 - Fee Related
Application number
JP7094865A
Other languages
Japanese (ja)
Other versions
JPH08288151A (en
Inventor
久代 三好
龍哉 森
俊八 井上
浩史 冨田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP7094865A priority Critical patent/JP2814949B2/en
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to CN95191116A priority patent/CN1069992C/en
Priority to DE69530620T priority patent/DE69530620T2/en
Priority to EP99118612A priority patent/EP0962948B1/en
Priority to DE69523138T priority patent/DE69523138T2/en
Priority to EP99118603A priority patent/EP0962947A3/en
Priority to PCT/JP1995/002246 priority patent/WO1996014643A1/en
Priority to EP95936090A priority patent/EP0740317B1/en
Priority to US08/666,301 priority patent/US5870011A/en
Priority to EP99118640A priority patent/EP0978851A1/en
Priority to TW084111660A priority patent/TW423213B/en
Publication of JPH08288151A publication Critical patent/JPH08288151A/en
Application granted granted Critical
Publication of JP2814949B2 publication Critical patent/JP2814949B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は各種電子機器の電源側に
用いられるラインフィルタに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line filter used on a power supply side of various electronic devices.

【0002】[0002]

【従来の技術】従来のこの種ラインフィルタは、ボビン
と、このボビンの外周に巻き付けられた一対の巻線と、
これら一対の巻線のそれぞれの入力側に設けた入力端子
と、前記一対のそれぞれの出力側に設けた出力端子と、
前記ボビンの中心軸部分の貫通孔部にその一辺が貫通さ
せられたロ字状のコアとを備えていた。
2. Description of the Related Art A conventional line filter of this type includes a bobbin, a pair of windings wound around the outer periphery of the bobbin,
An input terminal provided on each input side of the pair of windings, an output terminal provided on each output side of the pair of windings,
A bobbin-shaped core having one side penetrated in a through-hole at the center axis of the bobbin.

【0003】[0003]

【発明が解決しようとする課題】上記構成において問題
となるのは、コアがボビンの貫通孔部分に貫通した一辺
を中心軸としてこの一辺に対向する対向辺がボビンの外
周を回動し、これにより他の部分に対して漏洩磁束によ
り磁気的影響を与えたり、あるいはこのコアにノイズが
侵入したりしやすくなるということであった。そこで本
発明は、コアからの漏洩磁束による他の部品への磁気的
影響を抑制すると共にこのコアへのノイズの侵入をなく
することを目的とするものである。
The problem with the above construction is that the opposite side facing the one side rotates around the outer periphery of the bobbin around one side through which the core penetrates the through hole portion of the bobbin. Therefore, the magnetic flux is easily affected by the leakage magnetic flux to other portions, or noise is likely to enter the core. SUMMARY OF THE INVENTION It is an object of the present invention to suppress the magnetic influence on other components due to the leakage magnetic flux from the core and to eliminate noise from entering the core.

【0004】[0004]

【課題を解決するための手段】そしてこの目的を達成す
るために本発明は、ボビンと、このボビンの外周に巻き
付けられた一対の巻線と、これら一対の巻線のそれぞれ
の入力側に設けた入力端子と、前記一対のそれぞれの出
力側に設けた出力端子と、前記ボビンの中心軸部分の貫
通孔にその一辺が貫通させられたロ字状のコアとを備
え、前記コアの回動を阻止する回動阻止手段を設けてお
り、前記回動阻止手段は、前記ボビンの前記貫通孔の端
部に凹部を設けるとともに、前記コアを保持するカバー
を設け、前記カバーの端部を前記凹部に挿入して、前記
コアを保持固定し、前記コアの回動を阻止する手段とし
た構成である。
In order to achieve this object, the present invention provides a bobbin, a pair of windings wound around the outer periphery of the bobbin, and an input side of each of the pair of windings. An input terminal, an output terminal provided on each output side of the pair, and a square-shaped core having one side penetrated through a through hole in a center shaft portion of the bobbin, and the rotation of the core Rotation prevention means for preventing
The rotation preventing means is provided at an end of the through hole of the bobbin.
Cover for providing a concave portion in the portion and holding the core
And inserting the end of the cover into the recess,
A means for holding and fixing the core and preventing rotation of the core
Configuration.

【0005】[0005]

【作用】上記構成とすると、ボビンの貫通孔の端部に凹
部を設けるとともに、コアを保持するカバーを設け、カ
バーの端部を凹部に挿入して、コアを保持固定し、コア
の回動を阻止する回動阻止手段を設けているので、コア
の対向辺がボビン外周を回動することはなく、よって、
コアからの漏洩磁束による他の部品への磁気的影響を抑
制することができる。
With the above arrangement, the end of the through hole of the bobbin is recessed.
And a cover for holding the core,
Insert the end of the bar into the recess, hold and fix the core,
Is provided, the opposite side of the core does not rotate on the outer periphery of the bobbin.
Due to leakage flux from the core Ru can be suppressed magnetic influence on other components.

【0006】[0006]

【実施例】図1,図2において1は合成樹脂で形成され
たボビンで、このボビン1の外周に設けられた溝には図
4に示す一対の巻線2が巻き付けられている。巻線2の
図4における左側が入力端子3であり、右側が出力端子
4となっている。また、ボビン1の中心軸部分には、貫
通孔5が設けられており、この貫通孔5には図2に示す
如くロ字状となったコア6の一辺6aが貫通させられて
いる。すなわち、ボビン1は貫通孔5部分で2つに分割
され、この貫通孔5にコア6の一辺をはさんだ状態で合
体させられその後上記巻線2が巻き付けられているので
ある。
1 and 2, reference numeral 1 denotes a bobbin made of a synthetic resin, and a pair of windings 2 shown in FIG. The left side of the winding 2 in FIG. 4 is the input terminal 3, and the right side is the output terminal 4. Further, a through hole 5 is provided in the center axis portion of the bobbin 1, and one side 6 a of the core 6 having a square shape as shown in FIG. 2 penetrates the through hole 5. That is, the bobbin 1 is divided into two at the through hole 5 and is united with one side of the core 6 sandwiched in the through hole 5, and thereafter the winding 2 is wound.

【0007】ここでボビン1の2分割について説明する
と、ボビン1は図3で示すごとく2個の半円筒状体1a
を用意し、一方を半転させた後にその貫通孔5の形成側
を内方にして合体させて形成するものである。なお各半
円筒状体1aの貫通孔5部分の中央部には半円筒状体1
aが図3においてヘの字状に湾曲するのを防止すべく凹
部1bが設けられているので、2個の半円筒状体1aを
合体した場合につづみ状になってしまうことがなく、円
筒状体が形成されるのである。
Here, the bobbin 1 is divided into two parts. The bobbin 1 is divided into two semi-cylindrical bodies 1a as shown in FIG.
Is prepared, and one of them is turned halfway, and then the side where the through-hole 5 is formed is inwardly joined to be formed. The semi-cylindrical body 1a is located at the center of the through hole 5 of each semi-cylindrical body 1a
Since the concave portion 1b is provided in order to prevent a from bending in the shape of a letter F in FIG. 3, when two semi-cylindrical bodies 1a are united, they do not become stuck. A cylindrical body is formed.

【0008】次に上記コア6は一辺6aに対向する対向
辺6bが図2に示す如くボビン1の上方に配置された状
態で立設され、この状態で合成樹脂製のカバー7がこの
対向辺6bを覆う如く装着される。このカバー7はコ字
状となっており、その両端はさらに内方に折曲され、こ
の折曲部7aがボビン1の貫通孔5の両端の凹部(図3
の1c)に挿入することにより、図1の状態で保持・固
定され、これによりコア6の保護とその対向辺6bの回
動阻止を行っている。また、コア6へのノイズの侵入を
抑制することもできる。
Next, the core 6 is erected with the opposing side 6b opposing the side 6a disposed above the bobbin 1 as shown in FIG. 2, and in this state, the synthetic resin cover 7 is attached to the opposing side. 6b. The cover 7 has a U-shape, and both ends thereof are further bent inward, and this bent portion 7a is formed into a concave portion at both ends of the through hole 5 of the bobbin 1 (FIG. 3).
1c) is held and fixed in the state shown in FIG. 1, thereby protecting the core 6 and preventing rotation of the opposing side 6b. Also, make sure that noise does not enter the core 6.
It can also be suppressed.

【0009】なおカバー7の対向辺6b部に対応する両
端に設けた開口7aはコア6からの放熱を行わせるため
のものであり、またこの開口7aを設けることによりカ
バー7を合成樹脂で形成する際に樹脂が流れやすく作り
やすくなるのである。
The openings 7a provided at both ends corresponding to the opposite sides 6b of the cover 7 are for dissipating heat from the core 6, and the cover 7 is formed of synthetic resin by providing the openings 7a. In doing so, the resin easily flows and becomes easy to make.

【0010】[0010]

【発明の効果】以上のように本発明はボビンと、このボ
ビンの外周に巻き付けられた一対の巻線と、これら一対
の巻線のそれぞれの入力側に設けた入力端子と、前記一
対のそれぞれの出力側に設けた出力端子と、前記ボビン
の中心軸部分の貫通孔にその一辺が貫通させられたロ字
状のコアとを備え、前記コアの一辺に対向する対向辺を
覆うと共にその両端部が前記ボビンの貫通孔に挿入され
たコ字状のカバーを設けたものである。
As described above, the present invention relates to a bobbin, a pair of windings wound around the outer periphery of the bobbin, an input terminal provided on each input side of the pair of windings, An output terminal provided on the output side of the bobbin, and a square-shaped core having one side penetrated through a through-hole in the center axis portion of the bobbin, covering opposite sides opposing one side of the core and both ends thereof The portion is provided with a U-shaped cover inserted into the through hole of the bobbin.

【0011】そして上記構成とすると、コアの対向辺は
コ字状のカバーにより覆われ、このカバーの両端はボビ
ンの貫通孔部に挿入され、固定されるので、コアの対向
辺がボビン外周を回動することはなく、よって、コアか
らの漏洩磁束による他の部分への磁気的影響を抑制する
ことができると共に、このコアへのノイズの侵入を抑制
することができる。
[0011] With the above configuration, the opposing sides of the core are covered with a U-shaped cover, and both ends of the cover are inserted into and fixed to the through holes of the bobbin. It does not rotate, so that it is possible to suppress the magnetic influence on the other parts due to the leakage magnetic flux from the core, and to suppress the intrusion of noise into the core.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例の斜視図FIG. 1 is a perspective view of one embodiment of the present invention.

【図2】図1の分解斜視図FIG. 2 is an exploded perspective view of FIG. 1;

【図3】図1のボビンの半分を示す斜視図FIG. 3 is a perspective view showing a half of the bobbin of FIG. 1;

【図4】図1の電気回路図FIG. 4 is an electric circuit diagram of FIG.

【符号の説明】[Explanation of symbols]

1 ボビン 2 巻線 3 入力端子 4 出力端子 5 貫通孔 6 コア 6a 一辺 6b 対向辺 7 カバー 7a 開口 Reference Signs List 1 bobbin 2 winding 3 input terminal 4 output terminal 5 through hole 6 core 6a one side 6b opposite side 7 cover 7a opening

───────────────────────────────────────────────────── フロントページの続き (72)発明者 冨田 浩史 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 平6−290973(JP,A) 特開 平8−255721(JP,A) 実開 平7−18416(JP,U) (58)調査した分野(Int.Cl.6,DB名) H01F 27/28 - 27/30────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroshi Tomita 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-6-290973 (JP, A) JP-A-8- 255721 (JP, A) Hikaru 7-18416 (JP, U) (58) Fields surveyed (Int. Cl. 6 , DB name) H01F 27/28-27/30

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 ボビンと、このボビンの外周に巻き付け
られた一対の巻線と、これら一対の巻線のそれぞれの入
力側に設けた入力端子と、前記一対のそれぞれの出力側
に設けた出力端子と、前記ボビンの中心軸部分の貫通孔
にその一辺が貫通させられたロ字状のコアとを備え、
記コアの回動を阻止する回動阻止手段を設けており、前
記回動阻止手段は、前記ボビンの前記貫通孔の端部に凹
部を設けるとともに、前記コアを保持するカバーを設
け、前記カバーの端部を前記凹部に挿入して、前記コア
を保持固定し、前記コアの回動を阻止する手段とした
インフィルタ。
1. A bobbin, a pair of windings wound around the outer periphery of the bobbin, an input terminal provided on each input side of the pair of windings, and an output terminal provided on each output side of the pair of windings comprising terminal and, a central shaft portion hollow square shaped core one side was passed through the through hole of the bobbin, before
A rotation preventing means for preventing rotation of the core is provided.
The rotation preventing means has a concave at an end of the through hole of the bobbin.
And a cover for holding the core.
And inserting the end of the cover into the recess,
A line filter as a means for holding and fixing the core and preventing rotation of the core .
【請求項2】 ボビンは、貫通孔部分で2分割するとと
もに、2分割された半円筒状体の貫通孔部の中央部には
凹部を形成した請求項1に記載のラインフィルタ。
2. The line filter according to claim 1, wherein the bobbin is divided into two at the through-hole portion , and a concave portion is formed at the center of the through-hole portion of the half-cylindrical body divided into two.
【請求項3】 カバーは、コアの一辺に対向する対向辺
部を覆う部分を有するコ字状の形状とするとともに、
バーのコアの対向辺部を覆う部分に開口を設けた請求項
1記載のラインフィルタ。
3. The cover has an opposite side facing one side of the core.
With a U-shape with a portion covering the part, claims having an opening in a portion covering the opposite sides of the core of the cover
2. The line filter according to 1 .
JP7094865A 1994-11-04 1995-04-20 Line filter Expired - Fee Related JP2814949B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP7094865A JP2814949B2 (en) 1995-04-20 1995-04-20 Line filter
US08/666,301 US5870011A (en) 1994-11-04 1995-11-02 Line filter
EP99118612A EP0962948B1 (en) 1994-11-04 1995-11-02 Line filter
DE69523138T DE69523138T2 (en) 1994-11-04 1995-11-02 NETZFILTER
EP99118603A EP0962947A3 (en) 1994-11-04 1995-11-02 Line filter
PCT/JP1995/002246 WO1996014643A1 (en) 1994-11-04 1995-11-02 Line filter
CN95191116A CN1069992C (en) 1994-11-04 1995-11-02 Line filter
DE69530620T DE69530620T2 (en) 1994-11-04 1995-11-02 Line filter
EP99118640A EP0978851A1 (en) 1994-11-04 1995-11-02 Line filter
EP95936090A EP0740317B1 (en) 1994-11-04 1995-11-02 Line filter
TW084111660A TW423213B (en) 1994-11-04 1995-11-03 Line filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7094865A JP2814949B2 (en) 1995-04-20 1995-04-20 Line filter

Publications (2)

Publication Number Publication Date
JPH08288151A JPH08288151A (en) 1996-11-01
JP2814949B2 true JP2814949B2 (en) 1998-10-27

Family

ID=14121942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7094865A Expired - Fee Related JP2814949B2 (en) 1994-11-04 1995-04-20 Line filter

Country Status (1)

Country Link
JP (1) JP2814949B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2715847B2 (en) * 1993-04-06 1998-02-18 松下電器産業株式会社 Line filter
JP2556318Y2 (en) * 1993-08-31 1997-12-03 富士電気化学株式会社 Inductance components
JPH08255721A (en) * 1995-03-17 1996-10-01 Matsushita Electric Ind Co Ltd Line filter

Also Published As

Publication number Publication date
JPH08288151A (en) 1996-11-01

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