JPH09237723A - Noise filter - Google Patents
Noise filterInfo
- Publication number
- JPH09237723A JPH09237723A JP6914096A JP6914096A JPH09237723A JP H09237723 A JPH09237723 A JP H09237723A JP 6914096 A JP6914096 A JP 6914096A JP 6914096 A JP6914096 A JP 6914096A JP H09237723 A JPH09237723 A JP H09237723A
- Authority
- JP
- Japan
- Prior art keywords
- shaped magnetic
- noise filter
- magnetic core
- holder
- shaped
- 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
- Filters And Equalizers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、産業用や民生用電
子機器の電磁ノイズの除去や車載用ラジオの受信感度の
向上に用いられるノイズフィルタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise filter used for removing electromagnetic noise from industrial and consumer electronic devices and improving the receiving sensitivity of an on-vehicle radio.
【０００２】[0002]
【従来の技術】従来、電子機器の電源部から発生し電源
線を伝導する電磁ノイズを除去するために、コモンモー
ドチョークコイルとコンデンサー等の電子部品より構成
されたノイズフィルタが使用されている。2. Description of the Related Art Conventionally, a noise filter composed of electronic parts such as a common mode choke coil and a capacitor has been used to remove electromagnetic noise generated from a power supply section of an electronic device and conducted through a power supply line.
【０００３】例えば、図５に示すように、車載用のラジ
オ機器において、ノイズフィルタ３６をバッテリー３５
と車載用ラジオ３４のライン間に設けて、受信アンテナ
３３から車載用ラジオ３４へ伝送する高周波電流の一部
が、バッテリー３５へ漏洩したり、或いはバッテリー３
５から車載用ラジオ３４へ雑音が混入するのを防止し、
受信感度の向上を図っている。For example, as shown in FIG. 5, in a vehicle-mounted radio device, a noise filter 36 is attached to a battery 35.
And a vehicle-mounted radio 34 are provided between the receiving antenna 33 and the vehicle-mounted radio 34, and a part of high-frequency current leaks to the battery 35 or the battery 3.
5 to prevent noise from entering the in-vehicle radio 34,
We are trying to improve the reception sensitivity.
【０００４】又、ノイズフィルタは、図４の分解図に示
すような構造になっていることが多い。このノイズフィ
ルタは、Ｕ字形磁心Ａ２、Ｕ字形磁心Ｂ１７と、一対の
眼鏡形の巻線３ａ，３ｂと、眼鏡形の絶縁板４と、前記
Ｕ字形磁心Ａ２及びＵ字形磁心Ｂ１７と前記眼鏡形の巻
線３ａ，３ｂと前記絶縁板４とを組合せ保持する絶縁ホ
ルダーＡ２８と、該絶縁ホルダーＡ２８の取付穴３２と
固定穴７とをビス８で固定する固定片９を有する基台１
０と、該基台１０の固定穴２９にビス３１で取り付ける
絶縁紙３０と、前記Ｕ字形磁心Ｂ１７と前記基台１０の
側壁２７の間に挿入する絶縁紙４０と、ケース１１と、
コネクタ１２，１３とを接続子１４で連結する電線１
５，１６とから構成されている。The noise filter often has a structure as shown in the exploded view of FIG. This noise filter includes a U-shaped magnetic core A2, a U-shaped magnetic core B17, a pair of spectacle-shaped windings 3a and 3b, a spectacle-shaped insulating plate 4, the U-shaped magnetic core A2 and U-shaped magnetic core B17, and the spectacle-shaped magnetic core. 1. A base 1 having an insulating holder A28 for holding the windings 3a, 3b of the same and the insulating plate 4 in combination, and a fixing piece 9 for fixing the mounting hole 32 and the fixing hole 7 of the insulating holder A28 with screws 8.
0, an insulating paper 30 attached to the fixing hole 29 of the base 10 with a screw 31, an insulating paper 40 inserted between the U-shaped magnetic core B17 and the side wall 27 of the base 10, a case 11,
Electric wire 1 for connecting the connectors 12 and 13 with the connector 14.
5 and 16.
【０００５】[0005]
【発明が解決しようとする課題】このように、従来のノ
イズフィルタは、部品点数が多いため、その組立ての順
序が煩雑で、組立ての作業時間が多くかかるという欠点
があった。As described above, since the conventional noise filter has a large number of parts, it has a drawback that the order of assembling the noise filter is complicated and the assembling time is long.
【０００６】又、図４に示すような従来のノイズフィル
タでは、絶縁ホルダーＡ２８とＵ字形磁心Ａ２とが振動
によって位置ずれを起こす可能性があるため、接着剤等
で接着する必要があった。Further, in the conventional noise filter as shown in FIG. 4, since the insulating holder A28 and the U-shaped magnetic core A2 may be displaced due to vibration, it is necessary to bond them with an adhesive or the like.
【０００７】又、振動によって巻線３ａ，３ｂの絶縁被
覆がはがれ、金属製の基台１０等に接触する可能性があ
るため、絶縁紙３０等を使って絶縁する必要があった。
更に、Ｕ字形磁心Ｂ１７の背部の継鉄部分１８と基台の
側壁２７とが接触するため、絶縁紙等を使って絶縁する
必要があった。Further, the insulating coatings of the windings 3a and 3b may be peeled off due to the vibration and may come into contact with the metal base 10 or the like, so it is necessary to insulate the insulating paper 30 or the like.
Furthermore, since the yoke portion 18 on the back of the U-shaped magnetic core B17 and the side wall 27 of the base are in contact with each other, it is necessary to insulate them using insulating paper or the like.
【０００８】従って、本発明の目的は、組立が容易で、
振動による位置ずれが生じない、磁心と基台及び巻線の
端末部とコンデンサーを容易に絶縁することができる、
信頼性のある安価なノイズフィルタを提供するものであ
る。Therefore, it is an object of the present invention to be easy to assemble,
Positional displacement due to vibration does not occur, the core and base and the end of the winding and the capacitor can be easily insulated.
It is intended to provide a reliable and inexpensive noise filter.
【０００９】[0009]
【課題を解決するための手段】本発明は、二分割された
一対のＵ字形磁心を組み込む絶縁ホルダーを使用したノ
イズフィルタにおいて、前記一対のＵ字形磁心のうち、
一方のＵ字形磁心の背部の継鉄部分を絶縁ホルダーと一
体成形したことを特徴とするノイズフィルタである。SUMMARY OF THE INVENTION The present invention is a noise filter using an insulating holder incorporating a pair of U-shaped magnetic cores divided into two parts.
The noise filter is characterized in that the yoke portion on the back of one U-shaped magnetic core is integrally formed with an insulating holder.
【００１０】本発明は、上記ノイズフィルタにおいて、
二分割された一対のＵ字形磁心の両磁脚の少なくとも一
部分を覆うことが可能な２つの保持部を持ち、Ｕ字形磁
心の継鉄部分の背部に圧接する折り曲げ可能な絶縁板部
を持つ絶縁ホルダーに、他方のＵ字形磁心を挿入し、一
方のＵ字形磁心の磁脚が他方のＵ字形磁心の磁脚と接合
するように突き合わせ、前記保持部に眼鏡形の巻線を施
してなるチョークコイル組立体を基台に圧入固定したこ
とを特徴とするノイズフィルタである。According to the present invention, in the above noise filter,
Insulation having two holding parts capable of covering at least a part of both magnetic legs of a pair of U-shaped magnetic cores divided into two and having a foldable insulating plate portion press-contacted to the back of the yoke portion of the U-shaped magnetic core A choke in which the other U-shaped magnetic core is inserted into the holder, butted so that the magnetic leg of one U-shaped magnetic core is joined to the magnetic leg of the other U-shaped magnetic core, and the holding portion is provided with a spectacle-shaped winding. It is a noise filter characterized in that a coil assembly is press-fitted and fixed to a base.
【００１１】（作用）上記のように、二分割された一対
のＵ字形磁心の一方のＵ字形磁心の背部の継鉄部分を覆
うように絶縁ホルダーと一体成形することにより、部品
点数が少なくなり、又、絶縁ホルダーとＵ字形磁心とが
振動によって位置ずれを起こすこともなくなる。(Operation) As described above, the number of parts is reduced by integrally molding the insulating holder so as to cover the yoke portion of the back of one of the U-shaped magnetic cores divided into two. Also, the insulating holder and the U-shaped magnetic core are not displaced by vibration.
【００１２】又、絶縁性ホルダーが絶縁体のため、巻線
との絶縁が強化され、絶縁紙の挿入の手間がなくなる。
又、折り曲げ可能な絶縁板部を絶縁ホルダーにて構成し
ているために、Ｕ字形磁心の背部と基台の側壁の絶縁が
強化される。Further, since the insulating holder is an insulator, the insulation with the winding is reinforced and the labor of inserting the insulating paper is eliminated.
Further, since the foldable insulating plate portion is composed of the insulating holder, the insulation between the back portion of the U-shaped magnetic core and the side wall of the base is strengthened.
【００１３】[0013]
【発明の実施の形態】以下、図面を用いて本発明の実施
の形態を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】本発明の一実施例のノイズフィルタの分解
斜視図を図１に示す。又、図２に、ケースを取り外した
状態の本発明のノイズフィルタの斜視図を示す。FIG. 1 shows an exploded perspective view of a noise filter according to an embodiment of the present invention. 2 is a perspective view of the noise filter of the present invention with the case removed.
【００１５】図１に示すように、本発明のノイズフィル
タは、絶縁ホルダーＡ１と一体成形したＵ字形磁心Ａ２
と、これと対となるＵ字形磁心Ｂ１７と、一対の眼鏡形
の巻線３ａ，３ｂと、該巻線３ａ，３ｂ間に介在する眼
鏡形の絶縁板４と、Ｕ字形磁心Ａ２とＵ字形磁心Ｂ１７
と眼鏡形の巻線３ａ，３ｂと絶縁板４とを保持する絶縁
ホルダーＢ５と、前記絶縁ホルダーＡ１の取付穴６とビ
ス８で固定する固定片９を有する基台１０と、ケース１
１と、コネクタ１２，１３とを接続子１４で連結した電
線１５，１６とから構成されている。As shown in FIG. 1, the noise filter of the present invention has a U-shaped magnetic core A2 integrally formed with an insulating holder A1.
A pair of U-shaped magnetic cores B17, a pair of eyeglass-shaped windings 3a and 3b, an eyeglass-shaped insulating plate 4 interposed between the windings 3a and 3b, a U-shaped magnetic core A2 and a U-shaped Magnetic core B17
An insulating holder B5 for holding the eyeglass-shaped windings 3a, 3b and the insulating plate 4, a base 10 having a fixing piece 9 for fixing the mounting hole 6 of the insulating holder A1 and a screw 8, and a case 1
1 and electric wires 15 and 16 in which connectors 12 and 13 are connected by a connector 14.
【００１６】絶縁ホルダーＢ５は、図１及び図３に示す
ように、Ｕ字形磁心Ａ２及びＵ字形磁心Ｂ１７の両磁脚
３７，３８を覆うことが可能な二つの保持部３９を有す
る。As shown in FIGS. 1 and 3, the insulating holder B5 has two holding portions 39 capable of covering both the magnetic legs 37 and 38 of the U-shaped magnetic core A2 and the U-shaped magnetic core B17.
【００１７】又、絶縁ホルダーＢ５は、保持部３９に磁
脚３８が挿入されたＵ字形磁心Ｂ１７の背部の継鉄部分
１８を圧接することが可能な、折り曲げ部１９を持つ絶
縁板部２０を有する。Further, the insulating holder B5 is provided with an insulating plate portion 20 having a bent portion 19 capable of press-contacting the yoke portion 18 at the back of the U-shaped magnetic core B17 in which the magnetic leg 38 is inserted in the holding portion 39. Have.
【００１８】本発明のノイズフィルタは、次のようにし
て組み立てられる。図１に示すように、絶縁ホルダーＢ
５の保持部３９に、丸導線を筒形に且つ２層に形成し
て、眼鏡形に巻いた２個の分割巻線間に絶縁板４挿入す
る。The noise filter of the present invention is assembled as follows. As shown in Fig. 1, insulation holder B
A round conductor wire is formed in a cylindrical shape and in two layers in the holding portion 39 of No. 5, and the insulating plate 4 is inserted between two split windings wound in a spectacle shape.
【００１９】次に、Ｕ字形磁心Ｂ１７を挿入し、更に、
絶縁ホルダーＡ１と絶縁ホルダーＢ５を、絶縁ホルダー
Ａ１と一体成形したＵ字形磁心Ａ２の磁脚３７がＵ字形
磁心Ｂ１７の磁脚３８と接合するように組み合わせ、Ｕ
字形磁心Ｂ１７の背部の継鉄部分１８に圧接するよう
に、折り曲げ部１９から折り曲げ、チョークコイル組立
体２１を形成する。Next, a U-shaped magnetic core B17 is inserted, and further,
The insulating holder A1 and the insulating holder B5 are combined so that the magnetic leg 37 of the U-shaped magnetic core A2 integrally formed with the insulating holder A1 is joined to the magnetic leg 38 of the U-shaped magnetic core B17.
The choke coil assembly 21 is formed by bending the bent portion 19 so as to press the yoke portion 18 on the back of the character-shaped magnetic core B17.
【００２０】このチョークコイル組立体２１を金属製の
基台１０に設けた側壁２７と固定片９の間に圧入する。
この時、側壁２７に設けた凸部４３が、チョークコイル
組立体２１の折り曲げ部１９を押圧する。又、固定片９
の固定穴７に、取付穴６を利用し、ビス８を用いてビス
止めすることにより、チョークコイル組立体２１と基台
１０とを固定する。The choke coil assembly 21 is press-fitted between the side wall 27 provided on the metal base 10 and the fixing piece 9.
At this time, the convex portion 43 provided on the side wall 27 presses the bent portion 19 of the choke coil assembly 21. Also, the fixing piece 9
The choke coil assembly 21 and the base 10 are fixed by fixing the choke coil assembly 21 to the fixing hole 7 using the mounting hole 6 and fixing the screw 8 with the screw 8.
【００２１】更に、眼鏡形の巻線３ａ，３ｂの入出力端
に接続子１４を介して一対の電線１５，１６を接続し、
コンデンサー２２をチョークコイル組立体のコンデンサ
ー収納部２３に挿入し、コンデンサー端子２４を線間あ
るいは線対接地間に接続する。最後に、図２に示すよう
に、絶縁性のケース１１の係合部２５に前記基台１０の
係止部２６を組み合わせ、基台１０で蓋をして、本発明
のノイズフィルタが完成する。Further, a pair of electric wires 15 and 16 are connected to the input and output ends of the eyeglass-shaped windings 3a and 3b through a connector 14,
The capacitor 22 is inserted into the capacitor housing 23 of the choke coil assembly, and the capacitor terminal 24 is connected between the lines or between the line and ground. Finally, as shown in FIG. 2, the engaging portion 25 of the insulating case 11 is combined with the engaging portion 26 of the base 10, and the base 10 is covered to complete the noise filter of the present invention. .
【００２２】[0022]
【発明の効果】以上、説明したように、本発明によるノ
イズフィルタは、部品点数が少なく、組立が容易であ
り、振動による位置ずれが生じない、磁心と基台及び巻
線の端末部とコンデンサーの絶縁が容易なため、信頼性
が高くなり、かつ、安価となる。As described above, the noise filter according to the present invention has a small number of parts, is easy to assemble, does not cause displacement due to vibration, and has a magnetic core, a base, winding ends, and a capacitor. Since the insulation is easy, the reliability is high and the cost is low.
【図１】上部から見た本発明の一実施例によるノイズフ
ィルタの分解斜視図。FIG. 1 is an exploded perspective view of a noise filter according to an embodiment of the present invention seen from above.
【図２】ケースを取り外した状態の本発明の一実施例に
よるノイズフィルタの斜視図。FIG. 2 is a perspective view of a noise filter according to an embodiment of the present invention with a case removed.
【図３】本発明のノイズフィルタに使用される絶縁ホル
ダーの斜視図。FIG. 3 is a perspective view of an insulating holder used in the noise filter of the present invention.
【図４】底面から見た従来のノイズフィルタの分解斜視
図。FIG. 4 is an exploded perspective view of a conventional noise filter seen from the bottom surface.
【図５】車載用ラジオと他の機器との構成を説明するた
めの図。FIG. 5 is a diagram for explaining a configuration of a vehicle-mounted radio and other devices.
１，２８ 絶縁ホルダーＡ ２ Ｕ字形磁心Ａ ３ａ，３ｂ （眼鏡形の）巻線 ４ 絶縁板 ５ 絶縁ホルダーＢ ６，３２ 取付穴 ７，２９ 固定穴 ８，３１ ビス ９ 固定片 １０ 基台 １１ ケース １２，１３ コネクタ １４ 接続子 １５，１６ 電線 １７ Ｕ字形磁心Ｂ １８ Ｕ字形磁心Ｂの背部の継鉄部分 １９ 折り曲げ部 ２０ 絶縁板部 ２１，４２ チョークコイル組立体 ２２ コンデンサー ２３ コンデンサー収納部 ２４ コンデンサー端子 ２５ 係合部 ２６ 係止部 ２７ 側壁 ３０，４０ 絶縁紙 ３３ 受信アンテナ ３４ 車載用ラジオ ３５ バッテリー ３６ ノイズフィルタ ３７，３８ 磁脚 ３９，４１ 保持部 ４３ 凸部 1, 28 Insulation holder A 2 U-shaped magnetic core A 3a, 3b (glass-shaped) winding 4 Insulation plate 5 Insulation holder B 6,32 Mounting hole 7,29 Fixing hole 8,31 Screw 9 Fixing piece 10 Base 11 Case 12, 13 connector 14 connector 15, 16 electric wire 17 U-shaped magnetic core B 18 yoke part of the back of U-shaped magnetic core 19 bent portion 20 insulating plate portion 21, 42 choke coil assembly 22 condenser 23 condenser storage portion 24 condenser terminal 25 Engagement part 26 Engagement part 27 Side wall 30,40 Insulating paper 33 Receiving antenna 34 Car-mounted radio 35 Battery 36 Noise filter 37,38 Magnetic leg 39,41 Holding part 43 Convex part
Claims (2)
む絶縁ホルダーを使用したノイズフィルタにおいて、前
記一対のＵ字形磁心のうち、一方のＵ字形磁心の背部の
継鉄部分を絶縁ホルダーと一体成形したことを特徴とす
るノイズフィルタ。1. A noise filter using an insulating holder incorporating a pair of U-shaped magnetic cores divided into two, wherein a yoke portion of a back portion of one of the U-shaped magnetic cores is integrated with the insulating holder. A noise filter characterized by being molded.
て、二分割された一対のＵ字形磁心の両磁脚の少なくと
も一部分を覆うことが可能な２つの保持部を持ち、Ｕ字
形磁心の継鉄部分の背部に圧接する折り曲げ可能な絶縁
板部を持つ絶縁ホルダーに、他方のＵ字形磁心を挿入
し、一方のＵ字形磁心の磁脚が他方のＵ字形磁心の磁脚
と接合するように突き合わせ、前記保持部に眼鏡形の巻
線を施してなるチョークコイル組立体を基台に固定した
ことを特徴とするノイズフィルタ。2. The noise filter according to claim 1, further comprising two holding portions capable of covering at least a part of both magnetic legs of a pair of U-shaped magnetic cores divided into two, and a yoke portion of the U-shaped magnetic core. Insert the other U-shaped magnetic core into the insulating holder that has a foldable insulating plate that presses against the back of the, and butt the magnetic leg of one U-shaped magnetic core so that it joins the magnetic leg of the other U-shaped magnetic core. A noise filter characterized in that a choke coil assembly, which is formed by winding eyeglass-shaped windings on the holding portion, is fixed to a base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06914096A JP3761961B2 (en) | 1996-02-28 | 1996-02-28 | Noise filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06914096A JP3761961B2 (en) | 1996-02-28 | 1996-02-28 | Noise filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09237723A true JPH09237723A (en) | 1997-09-09 |
| JP3761961B2 JP3761961B2 (en) | 2006-03-29 |
Family
ID=13394052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06914096A Expired - Fee Related JP3761961B2 (en) | 1996-02-28 | 1996-02-28 | Noise filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3761961B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021168562A (en) * | 2020-04-10 | 2021-10-21 | 株式会社豊田自動織機 | Electric compressor |
-
1996
- 1996-02-28 JP JP06914096A patent/JP3761961B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021168562A (en) * | 2020-04-10 | 2021-10-21 | 株式会社豊田自動織機 | Electric compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3761961B2 (en) | 2006-03-29 |
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