JPH1041165A - Noise filter - Google Patents
Noise filterInfo
- Publication number
- JPH1041165A JPH1041165A JP20924096A JP20924096A JPH1041165A JP H1041165 A JPH1041165 A JP H1041165A JP 20924096 A JP20924096 A JP 20924096A JP 20924096 A JP20924096 A JP 20924096A JP H1041165 A JPH1041165 A JP H1041165A
- Authority
- JP
- Japan
- Prior art keywords
- noise filter
- capacitor
- choke coil
- terminal
- coil
- 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
Landscapes
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空調装置などの家
電機器、あるいは電子装置に組み込む電磁ノイズを抑制
するためのノイズフィルタの構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a noise filter for suppressing electromagnetic noise incorporated in a household electric appliance such as an air conditioner or an electronic device.
【０００２】[0002]
【従来の技術】従来のノイズフィルタを図６に示す。図
６のノイズフィルタは、チョークコイル２と、Ｃｘコン
デンサ２９と、Ｃｙコンデンサ３０と、導体パターン２
８が形成された配線基板３１と、ノイズフィルタを他の
回路に接続するための配線基板３１に植設された金属端
子３２とから構成されている。図７は、図６に示すノイ
ズフィルタの等価回路図である。2. Description of the Related Art FIG. 6 shows a conventional noise filter. 6 includes a choke coil 2, a Cx capacitor 29, a Cy capacitor 30, a conductor pattern 2
The wiring board 31 has a metal terminal 32 formed on the wiring board 31 for connecting the noise filter to another circuit. FIG. 7 is an equivalent circuit diagram of the noise filter shown in FIG.
【０００３】従来の基板型のノイズフィルタにおいて、
基板に部品のリード線を通す孔を設けることからくる制
約が多く、配線基板上に実装する面積が大きくなり、且
つ立体的にノイズフィルタの構成部品を配置できないた
め、ノイズフィルタの小形化を妨げる一因となってい
た。また、その大きさ及び配線基板３１の裏面の導体パ
ターン２８がむき出しになっていることにより、他の回
路に実装するときの制約が大きかった。In a conventional board type noise filter,
There are many restrictions caused by providing holes through which lead wires of components are provided on the board, so that the mounting area on the wiring board becomes large, and the components of the noise filter cannot be arranged three-dimensionally, which hinders miniaturization of the noise filter. Had contributed. In addition, the size and the exposed conductor pattern 28 on the rear surface of the wiring board 31 greatly restrict the mounting of the circuit board on other circuits.
【０００４】また、配線基板３１上に設けたリード線用
の貫通孔に、Ｃｘコンデンサ２９とＣｙコンデンサ３０
のリード線を通し、半田付けを行う作業をする際、コン
デンサが大きいと、自動実装機によるコンデンサの自動
供給、自動実装が困難であった。A Cx capacitor 29 and a Cy capacitor 30 are provided in through holes for lead wires provided on a wiring board 31.
When soldering through the lead wire of the above, if the capacitor is large, it is difficult to automatically supply and automatically mount the capacitor by an automatic mounting machine.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、このような
課題を解決し、ノイズフィルタを構成する際、コンデン
サ実装時のコンデンサの自動供給、ノイズフィルタの自
動組立を容易なものとし、且つノイズフィルタの形状を
小形化することにより、収納性及び生産性に優れたノイ
ズフィルタを提供しようとするものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and when configuring a noise filter, automatically supplies a capacitor when mounting the capacitor, facilitates automatic assembly of the noise filter, and reduces noise. An object of the present invention is to provide a noise filter which is excellent in storability and productivity by reducing the size of the filter.
【０００６】[0006]
【課題を解決するための手段】本発明のノイズフィルタ
は、閉磁路コアに巻線を施したチョークコイルと、チッ
プコンデンサと、前記チョークコイルを固定する台座よ
り構成されるノイズフィルタであり、前記台座は絶縁性
樹脂からなり、電子機器に実装するための端子、チョー
クコイルの巻線の端部との接続部、及び前記チップコン
デンサとの接続部を設けたコンデンサの収納部を持ち、
且つ該台座には前記チップコンデンサ及び前記チョーク
コイルを該台座に実装した際、ノイズフィルタ回路を構
成することが可能な配線導電部が一体構成されているこ
とを特徴とするノイズフィルタである。A noise filter according to the present invention is a noise filter comprising a choke coil having a closed magnetic circuit core wound thereon, a chip capacitor, and a pedestal for fixing the choke coil. The pedestal is made of insulating resin, and has terminals for mounting on an electronic device, a connection portion with an end of a winding of a choke coil, and a storage portion for a capacitor provided with a connection portion with the chip capacitor,
In addition, the noise filter is characterized in that a wiring conductive portion capable of forming a noise filter circuit is integrally formed on the pedestal when the chip capacitor and the choke coil are mounted on the pedestal.
【０００７】[0007]
【発明の実施の形態】以下、図面を用いて本発明の実施
の形態を具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【０００８】図１は、本発明のノイズフィルタの外観斜
視図である。また、図２に、コンデンサを取り付ける前
の本発明のノイズフィルタを下方から見た図を示す。図
３は、本発明のノイズフィルタの台座の斜視図である。
以上の各図に示すように、本発明のノイズフィルタは、
台座１と、トロイダル型のコモンモードチョークコイル
２と、チップ型のＣｘコンデンサ３と、チップ型のＣｙ
コンデンサ４より構成される。FIG. 1 is an external perspective view of a noise filter according to the present invention. FIG. 2 is a diagram showing the noise filter of the present invention before the capacitor is attached, as viewed from below. FIG. 3 is a perspective view of the base of the noise filter of the present invention.
As shown in the above figures, the noise filter of the present invention is:
Pedestal 1, toroidal common mode choke coil 2, chip type Cx capacitor 3, and chip type Cy
It is composed of a capacitor 4.
【０００９】コモンモードチョークコイル２は、中央仕
切板５、及び仕切り台６をもつコア絶縁ケース７にコア
を収納し、巻線８を施したものである。The common mode choke coil 2 is obtained by accommodating a core in a core insulating case 7 having a center partition plate 5 and a partition base 6 and applying a winding 8 thereto.
【００１０】台座１は、コイル台板９の四隅に脚１０を
設け、台板の中央部にコイル２の中央仕切板５を台板の
長辺方向と平行にして遊嵌できる一対の突片１１を設
け、コイル台板９の一対の短辺線の中央部に突部１２を
設け、コイル台板９の四隅には脚１０に隣接して巻線の
端部を通す縦溝１３が設けてある。The pedestal 1 is provided with legs 10 at four corners of a coil base plate 9 and a pair of projecting pieces which can be loosely fitted at the center of the base plate with the center partition plate 5 of the coil 2 parallel to the long side direction of the base plate. 11, a projection 12 is provided at the center of a pair of short side lines of the coil base plate 9, and a vertical groove 13 is provided at four corners of the coil base plate 9 adjacent to the leg 10 and through which an end of the winding passes. It is.
【００１１】コイル台板９の短辺線の外側には、入力側
端子台１４と出力側端子台１５が突設されており、入力
側端子台１４は一対の外部接続用板端子１６を持ち、出
力側端子台１５は一対の外部接続用板端子１７と接地用
板端子１８を持つ。外部接続用板端子１６、外部接続用
板端子１７、及び接地用板端子１８の形状の細部をそれ
ぞれ図４（ａ）、図４（ｂ）、及び図４（ｃ）に示す。An input terminal block 14 and an output terminal block 15 are provided outside the short side line of the coil base plate 9, and the input terminal block 14 has a pair of plate terminals 16 for external connection. The output terminal block 15 has a pair of external connection plate terminals 17 and a ground plate terminal 18. 4 (a), 4 (b), and 4 (c) show details of the shapes of the external connection plate terminal 16, the external connection plate terminal 17, and the grounding plate terminal 18, respectively.
【００１２】図４に示すように、外部接続用板端子１６
は、コイル接続部２２とＣｘコンデンサ接続部１９を持
ち、金属板を打ち抜き、前記Ｃｘコンデンサ接続部１９
を折り曲げて作製する。外部接続用板端子１７は、コイ
ル接続部２３とＣｘコンデンサ接続部２０とＣｙコンデ
ンサ接続部２１とを持ち、金属板を打ち抜き、前記Ｃｘ
コンデンサ接続部１９及びＣｙコンデンサ接続部２１を
折り曲げて作製される。接地用板端子１８は、Ｃｙコン
デンサ接続部２７を持ち、金属板を打ち抜き、前記Ｃｙ
コンデンサ接続部２７を折り曲げて作製する。２つの外
部接続用板端子１６、２つの外部接続用板端子１７、及
び接地用板端子１８は、台座１と一体成形される。As shown in FIG. 4, an external connection plate terminal 16 is provided.
Has a coil connection part 22 and a Cx capacitor connection part 19, and punches a metal plate,
Is manufactured by bending. The external connection plate terminal 17 has a coil connection portion 23, a Cx capacitor connection portion 20, and a Cy capacitor connection portion 21.
It is manufactured by bending the capacitor connecting portion 19 and the Cy capacitor connecting portion 21. The grounding plate terminal 18 has a Cy capacitor connecting portion 27, and is formed by punching a metal plate.
The capacitor connecting portion 27 is formed by bending. The two external connection plate terminals 16, the two external connection plate terminals 17, and the ground plate terminal 18 are integrally formed with the pedestal 1.
【００１３】図２に示すように、入力側端子台１４の裏
には、Ｃｘコンデンサ収納部２４が形成され、外部接続
用板端子１６のＣｘコンデンサ接続部１９が露出してい
る。As shown in FIG. 2, a Cx capacitor housing portion 24 is formed on the back of the input side terminal block 14, and the Cx capacitor connection portion 19 of the external connection plate terminal 16 is exposed.
【００１４】出力側端子台１５の裏には、Ｃｘコンデン
サ収納部２５とＣｙコンデンサ収納部２６が形成され、
Ｃｘコンデンサ収納部２５には、外部接続用板端子１７
のＣｘコンデンサ接続部２０が露出している。また、Ｃ
ｙコンデンサ収納部２６には、外部接続用板端子１７の
Ｃｙコンデンサ接続部２１と接地用板端子１８のＣｙコ
ンデンサ接続部２７が露出している。A Cx capacitor housing 25 and a Cy capacitor housing 26 are formed on the back of the output side terminal block 15.
The external connection plate terminal 17
Are exposed. Also, C
The Cy capacitor connecting portion 21 of the external connection plate terminal 17 and the Cy capacitor connecting portion 27 of the grounding plate terminal 18 are exposed in the y capacitor storage portion 26.
【００１５】図１及び図３に示すように、コイル２の中
央仕切板５をコイル台板９の一対の突部１２の間に嵌め
込み、台板中央部の一対の片１１の間に仕切板５を挟み
込んでコイル２をコイル台板９に載せ、コイル２の巻線
８の端部を縦溝１３に通して、入力側端子台１４の裏の
外部接続用板端子１６のコイル接続部２２（図２及び図
４）、及びと出力側端子台１５の裏の外部接続用板端子
１７のコイル接続部２３（図２及び図４）に接続する。
その後、Ｃｘコンデンサ３の１つをＣｘコンデンサ収納
部２４に収納し、外部接続用板端子１６のＣｘコンデン
サ接続部１９に、Ｃｘコンデンサ３の端子部を半田付け
する。もう一つのＣｘコンデンサ３は、Ｃｘコンデンサ
収納部２５に収納し、外部接続用板端子１７のＣｘコン
デンサ接続部２０に、Ｃｘコンデンサ３の端子部を半田
付けする。そして、ＣｙコンデンサをＣｙコンデンサ収
納部２６内に収納し、外部接続用板端子１７のＣｙコン
デンサ接続部２１にＣｘコンデンサ３の端子部の一方を
半田付けし、接地用端子１８のＣｙコンデンサ接続部２
７にＣｘコンデンサ３の端子部のもう一方を半田付けす
ることにより、本発明のノイズフィルタが完成する。As shown in FIGS. 1 and 3, the center partition plate 5 of the coil 2 is fitted between a pair of projections 12 of the coil base plate 9, and the partition plate 5 is positioned between a pair of pieces 11 at the center of the base plate. 5, the coil 2 is placed on the coil base plate 9, the end of the winding 8 of the coil 2 is passed through the vertical groove 13, and the coil connection portion 22 of the external connection plate terminal 16 on the back of the input side terminal block 14. (FIGS. 2 and 4), and the coil connection part 23 (FIGS. 2 and 4) of the external connection plate terminal 17 on the back of the output side terminal block 15.
Thereafter, one of the Cx capacitors 3 is stored in the Cx capacitor storage section 24, and the terminal section of the Cx capacitor 3 is soldered to the Cx capacitor connection section 19 of the external connection plate terminal 16. The other Cx capacitor 3 is housed in the Cx capacitor housing part 25, and the terminal part of the Cx capacitor 3 is soldered to the Cx capacitor connection part 20 of the external connection plate terminal 17. Then, the Cy capacitor is housed in the Cy capacitor housing portion 26, one of the terminal portions of the Cx capacitor 3 is soldered to the Cy capacitor connection portion 21 of the external connection plate terminal 17, and the Cy capacitor connection portion of the ground terminal 18 2
7 is soldered to the other terminal of the Cx capacitor 3, whereby the noise filter of the present invention is completed.
【００１６】本実施例のノイズフィルタの等価回路は、
図６に示す従来のノイズフィルタと同様に、図７に示す
等価回路図で表すことができる。なお、本実施例のノイ
ズフィルタは、図７の等価回路で表されるようなノイズ
フィルタの場合の実施例を示したが、それ以外のノイズ
フィルタ回路でも、本発明の適用は可能である。The equivalent circuit of the noise filter of this embodiment is as follows.
Similar to the conventional noise filter shown in FIG. 6, it can be represented by an equivalent circuit diagram shown in FIG. Although the noise filter of the present embodiment is an example of a noise filter represented by the equivalent circuit of FIG. 7, the present invention can be applied to other noise filter circuits.
【００１７】また、本発明のノイズフィルタのコイル台
板９の下には空間があり、図５のように、その下に各種
電子部品を配置することも可能である。その必要がなけ
れば、コイル台板９の位置を基板実装方向へ下げ、より
小形のノイズフィルタとすることも可能である。Further, there is a space below the coil base plate 9 of the noise filter of the present invention, and it is possible to arrange various electronic components thereunder as shown in FIG. If it is not necessary, the position of the coil base plate 9 can be lowered in the board mounting direction to provide a smaller noise filter.
【００１８】また、本発明のノイズフィルタは、各外部
接続用板端子にコイル及びコンデンサ接続部を設け、コ
イル２とＣｘコンデンサ３とＣｙコンデンサ４を結線す
ることによりノイズフィルタ回路を構成しているが、各
外部接続用板端子には、必ずしもコイル及びコンデンサ
接続部を設ける必要はなく、外部接続用板端子とコイル
及びコンデンサ接続部を別部品とし、ノイズフィルタ構
成時にそれぞれを結線することも可能である。In the noise filter of the present invention, a coil and a capacitor connection portion are provided at each external connection plate terminal, and a noise filter circuit is formed by connecting the coil 2, the Cx capacitor 3 and the Cy capacitor 4 to each other. However, it is not always necessary to provide a coil and capacitor connection for each external connection plate terminal, and the external connection plate terminal and the coil and capacitor connection can be made as separate parts, and each can be connected when configuring a noise filter. It is.
【００１９】[0019]
【発明の効果】本発明のノイズフィルタは、絶縁性の台
座内にチップコンデンサを収納することにより、従来の
ノイズフィルタに比べ小型化するのが容易である。ま
た、本発明のノイズフィルタは、小形で且つ台座が絶縁
性樹脂であり、他の回路に実装するときの制約が従来の
ノイズフィルタと比較して、少なくなっている。また、
コンデンサをコンデンサ収納部に実装する作業も、コン
デンサをチップ型のものを使用することにより、コンデ
ンサの自動供給、ノイズフィルタの自動組立をより簡便
なものとすることができ、従って生産性が向上する。According to the noise filter of the present invention, since the chip capacitor is housed in the insulating base, it is easy to reduce the size of the noise filter as compared with the conventional noise filter. Further, the noise filter of the present invention is small in size and has a base made of an insulating resin, so that there are fewer restrictions when mounting it on other circuits as compared with the conventional noise filter. Also,
For the work of mounting capacitors in the capacitor housing, the use of chip-type capacitors makes it easier to automatically supply capacitors and automatically assemble noise filters, thus improving productivity. .
【００２０】従って、本発明により小形で且つ他の回路
に実装するときの制約が少なく、生産性の高いノイズフ
ィルタを提供することができる。Therefore, according to the present invention, it is possible to provide a noise filter which is small in size and has few restrictions when mounted on another circuit, and has high productivity.
【図１】本発明のノイズフィルタの外観斜視図。FIG. 1 is an external perspective view of a noise filter according to the present invention.
【図２】本発明のノイズフィルタのコンデンサを取り付
ける前の状態を下方から見た外観斜視図。FIG. 2 is an external perspective view of a state before a capacitor of the noise filter according to the present invention is mounted as viewed from below.
【図３】本発明のノイズフィルタの台座の外観斜視図。FIG. 3 is an external perspective view of a base of the noise filter of the present invention.
【図４】各端子の構造を示す斜視図で、図４（ａ）は入
力側外部接続用板端子を示す図、図４（ｂ）は出力側外
部接続用板端子を示す図、図４（ｃ）は接地用板端子を
示す図。4A is a perspective view showing the structure of each terminal, FIG. 4A is a diagram showing an input-side external connection plate terminal, FIG. 4B is a diagram showing an output-side external connection plate terminal, FIG. (C) is a diagram showing a plate terminal for grounding.
【図５】本発明のノイズフィルタの基板実装例の外観斜
視図。FIG. 5 is an external perspective view of an example of mounting a noise filter on a substrate according to the present invention.
【図６】従来のノイズフィルタの部品に分解した説明
図。FIG. 6 is an explanatory view exploded into parts of a conventional noise filter.
【図７】本発明のノイズフィルタ及び従来のノイズフィ
ルタの等価回路図。FIG. 7 is an equivalent circuit diagram of the noise filter of the present invention and a conventional noise filter.
１ 台座 ２ コイル ３ チップ型Ｃｘコンデンサ ４ チップ型Ｃｙコンデンサ ５ 中央仕切板 ６ 仕切り台 ７ コア絶縁ケース ８ 巻線 ９ コイル台板 １０ 脚 １１ 突片 １２ 突部 １３ 縦溝 １４ 入力側端子台 １５ 出力側端子台 １６ （入力側）外部接続用板端子 １７ （出力側）外部接続用板端子 １８ 接地用板端子 １９，２０ Ｃｘコンデンサ接続部 ２１，２７ Ｃｙコンデンサ接続部 ２２，２３ コイル接続部 ２４，２５ Ｃｘコンデンサ収納部 ２６ Ｃｙコンデンサ収納部 ２８ 導体パターン ２９ Ｃｘコンデンサ ３０ Ｃｙコンデンサ ３１ 配線基板 ３２ 金属端子 DESCRIPTION OF SYMBOLS 1 Pedestal 2 Coil 3 Chip type Cx capacitor 4 Chip type Cy capacitor 5 Center partition plate 6 Partition stand 7 Core insulating case 8 Winding 9 Coil base plate 10 Leg 11 Projection piece 12 Projection 13 Vertical groove 14 Input terminal block 15 Output Side terminal block 16 (Input side) External connection plate terminal 17 (Output side) External connection plate terminal 18 Grounding plate terminal 19, 20 Cx capacitor connection portion 21, 27 Cy capacitor connection portion 22, 23 Coil connection portion 24, 25 Cx capacitor storage section 26 Cy capacitor storage section 28 Conductive pattern 29 Cx capacitor 30 Cy capacitor 31 Wiring board 32 Metal terminal
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０３Ｈ 7/09 Ｈ０１Ｆ 15/00 Ｄ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location H03H 7/09 H01F 15/00 D
Claims (1)
ル、チップコンデンサ及び前記チョークコイルを固定す
る台座より構成されるノイズフィルタであって、前記台
座は絶縁性樹脂からなり、電子機器に実装するための端
子と、前記チョークコイルの巻線の端部との接続部と、
前記チップコンデンサとの接続部を設けた収納部とを有
し、且つ前記台座には、前記チップコンデンサ及び前記
チョークコイルを該台座に実装した際、ノイズフィルタ
回路を構成することが可能な配線導電部が一体構成され
ていることを特徴とするノイズフィルタ。1. A noise filter comprising a choke coil having a winding wound on a closed magnetic circuit core, a chip capacitor, and a pedestal for fixing the choke coil, wherein the pedestal is made of an insulating resin and mounted on an electronic device. And a connection portion with an end of the winding of the choke coil,
A storage portion provided with a connection portion with the chip capacitor, and the pedestal has a wiring conductor capable of forming a noise filter circuit when the chip capacitor and the choke coil are mounted on the pedestal. A noise filter, wherein the unit is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20924096A JPH1041165A (en) | 1996-07-18 | 1996-07-18 | Noise filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20924096A JPH1041165A (en) | 1996-07-18 | 1996-07-18 | Noise filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1041165A true JPH1041165A (en) | 1998-02-13 |
Family
ID=16569688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20924096A Pending JPH1041165A (en) | 1996-07-18 | 1996-07-18 | Noise filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1041165A (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 |
| US20200411231A1 (en) * | 2018-02-13 | 2020-12-31 | Autonetworks Technologies, Ltd. | Inductor, inductor with circuit board, and electrical junction box |
-
1996
- 1996-07-18 JP JP20924096A patent/JPH1041165A/en active Pending
Cited By (3)
| 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 |
| US20200411231A1 (en) * | 2018-02-13 | 2020-12-31 | Autonetworks Technologies, Ltd. | Inductor, inductor with circuit board, and electrical junction box |
| US11908610B2 (en) * | 2018-02-13 | 2024-02-20 | Autonetworks Technologies, Ltd. | Inductor, inductor with circuit board, and electrical junction box |
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