JPH0133967B2 - - Google Patents
Info
- Publication number
- JPH0133967B2 JPH0133967B2 JP12180283A JP12180283A JPH0133967B2 JP H0133967 B2 JPH0133967 B2 JP H0133967B2 JP 12180283 A JP12180283 A JP 12180283A JP 12180283 A JP12180283 A JP 12180283A JP H0133967 B2 JPH0133967 B2 JP H0133967B2
- Authority
- JP
- Japan
- Prior art keywords
- windings
- winding
- diameter
- small
- terminals
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 94
- 230000004907 flux Effects 0.000 claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
- H03H7/425—Balance-balance networks
- H03H7/427—Common-mode filters
Landscapes
- Filters And Equalizers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は複写機、自動販売機などの電子機器に
利用されるノイズフイルタに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a noise filter used in electronic equipment such as copying machines and vending machines.
従来例の構成とその問題点
最近、複写機、自動販売機などの電子機器にお
いては、電子機器内で発生したノイズが電源ライ
ンに乗つて外部に出ていつたり、電源ラインから
のノイズが電子機器に入つて誤動作するのを防止
するためのノイズフイルタが利用されている。Conventional configuration and its problems Recently, in electronic equipment such as copying machines and vending machines, noise generated inside the electronic equipment is carried to the outside via the power supply line, and noise from the power supply line is transmitted to the electronic equipment. Noise filters are used to prevent noise from entering equipment and causing it to malfunction.
従来のノイズフイルタとしては、第１図に示す
ように構成されていた。ロ字型などの枠型磁心１
に巻線N1，N2を巻回し、それぞれの一端を電源
端子t1，t1′として交流または直流電源２に接続
し、他端子t2，t2′には負荷３を接続し、さらに、
電源端子t1，t1′間にはコンデンサC1，C1′を接続
し、また、端子t2，t2′間にもコンデンサC2，
C2′を接続し、コンデンサC1とC1′およびC2と
C2′のそれぞれの中間接続点を接地して構成され
ていた。 A conventional noise filter was constructed as shown in FIG. Frame-shaped magnetic core 1 such as square shape
Windings N 1 and N 2 are wound around the terminals, one end of each is connected to an AC or DC power source 2 as power terminals t 1 and t 1 ′, and a load 3 is connected to the other terminals t 2 and t 2 ′. moreover,
Capacitors C 1 and C 1 ′ are connected between power supply terminals t 1 and t 1 ′, and capacitors C 2 and C 1 ′ are connected between terminals t 2 and t 2 ′ .
Connect C 2 ′ and connect capacitors C 1 and C 1 ′ and C 2 and
It was constructed by grounding each intermediate connection point of C 2 ′.
この構成において、負荷電流によりそれぞれの
巻線N1とN2に磁束φ1とφ2を生じるが、互いに打
ち消す極性に接続されているため、大部分は打ち
消されるが、磁気抵抗があるため、互いに鎖交し
ない漏洩磁束が残る。この漏洩磁束により巻線
N1，N2の磁心１の磁束が飽和し、インダクタン
ス値が非常に減少するため巻数が多く取れずイン
ダクタンス値を大きくできないものであつた。 In this configuration, the load current produces magnetic fluxes φ 1 and φ 2 in the respective windings N 1 and N 2 , but since they are connected with polarities that cancel each other out, most of them cancel out, but due to the magnetic resistance, Leakage magnetic fluxes that do not interlink with each other remain. Winding due to this leakage magnetic flux
The magnetic flux of the magnetic core 1 of N 1 and N 2 is saturated, and the inductance value is greatly reduced, so the number of turns cannot be increased and the inductance value cannot be increased.
このような欠点を除去するために第２図〜第４
図に示すようなノイズフイルタが開発されてい
る。すなわち、枠型磁心１の一脚に電流を流すこ
とによつて生じる磁束が互いに逆方向となる大径
巻線N1と小径巻線n1を巻回し、他脚に同じく電
流を流すことによつて生じる磁束が互いに逆方向
となる大径巻線N2と小径巻線n2を巻回し他は第
１図に示す構成と同一としたものである。 In order to eliminate such defects, Figs.
A noise filter as shown in the figure has been developed. That is, by winding the large diameter winding N 1 and the small diameter winding N 1 such that the magnetic fluxes generated by passing a current through one leg of the frame-shaped magnetic core 1 are opposite to each other, and passing the same current through the other leg. The structure is the same as that shown in FIG. 1 except that the large diameter winding N 2 and the small diameter winding N 2 are wound so that the magnetic fluxes generated are in opposite directions.
そして、上記巻線N1とn2、および巻線N2とn1
とはそれぞれ直列になつており、この直列となる
巻線N1とn2，n1とN2とは磁束が加極性となるよ
うに構成されている。 And the windings N 1 and n 2 and the windings N 2 and n 1
are connected in series, and the windings N 1 and n 2 and n 1 and N 2 connected in series are constructed so that the magnetic flux becomes additive.
また、これらの直列巻線はそれぞれ一本の線に
て第３図に示すように大径部と小径部を形成した
ものをコ字状に折曲したものを２個組合せて二重
層の巻線とし、これを磁心１に組込むことによつ
て第４図に示すようになる。 In addition, these series windings are made by combining two pieces of a single wire with a large diameter part and a small diameter part bent into a U-shape as shown in Figure 3 to form a double layer winding. By incorporating the wire into the magnetic core 1, it becomes as shown in FIG.
この構成とすることにより巻線N1とn2，N2と
n1間の漏洩磁束が非常に少なくなるため磁束が飽
和することなく、巻数が多くとれるのでインダク
タンス値が大きくとれ、したがつて減衰効果も大
きくなつていた。 With this configuration, windings N 1 and n 2 , N 2
Since the leakage magnetic flux between n and 1 is extremely small, the magnetic flux does not saturate, and since the number of turns can be increased, the inductance value can be increased, and the damping effect is also increased.
しかしながら、大径巻線N1またはN2と小径巻
線n2またはn1を直列に巻線し折曲して組合せ磁心
１に組込むため、巻線作業の自動化、組合せ作業
がやりにくいといつた問題があつた。 However, since the large-diameter winding N 1 or N 2 and the small-diameter winding N 2 or n 1 are wound in series, bent, and assembled into the combination core 1, it is difficult to automate the winding work and combine the wires. I had a problem.
発明の目的
本発明は以上のような従来の欠点を除去するも
のであり、巻線作業の自動化や巻線の組合せが容
易にできるノイズフイルタを提供することを目的
とするものである。OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide a noise filter in which winding work can be automated and windings can be easily combined.
発明の構成
上記目的を達成するために本発明は、枠型磁心
とその磁心の一脚に二層にして巻回され電流が流
れることにより互いに逆方向の磁束を発生させる
小径巻線n1と大径巻線N1と、上記磁心の他脚に
同じく二層にして巻回され電流が流れることによ
り互いに逆方向の磁束を発生させる小径巻線n2と
大径巻線N2とからなり、上記小径巻線n1とn2お
よび大径巻線N1とN2とはそれぞれ一本の線によ
り作製されて巻線n1とn2およびN1とN2はそれぞ
れ磁束が加極性となり、上記巻線n1，N1の開放
端を電源端子とし、また巻線n2，N2の開放端を
負荷端子とし、電源端子間または負荷端子間の少
なくともいずれか一方にコンデンサを接続した構
成とし、巻線が同一径のものを連続的に巻線で
き、小径と、大径巻線の組込みも簡単に行えるも
のである。Structure of the Invention In order to achieve the above object, the present invention provides a frame-shaped magnetic core and a small-diameter winding n 1 which is wound in two layers around one leg of the magnetic core and generates magnetic flux in opposite directions when current flows through the core. It consists of a large diameter winding N 1 , a small diameter winding N 2 and a large diameter winding N 2 which are similarly wound in two layers around the other leg of the magnetic core and generate magnetic flux in opposite directions when current flows through them. , the small-diameter windings n 1 and n 2 and the large-diameter windings N 1 and N 2 are each made of a single wire, and the magnetic flux of the windings n 1 and n 2 and N 1 and N 2 is polarized. Then, the open ends of the windings n 1 and N 1 are used as the power supply terminals, and the open ends of the windings n 2 and N 2 are used as the load terminals, and a capacitor is connected between at least one of the power supply terminals or the load terminals. With this configuration, wires of the same diameter can be continuously wound, and small diameter and large diameter windings can be easily incorporated.
実施例の説明
以下、本発明の実施例を図面第５図〜第７図に
より説明する。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 5 to 7 of the drawings.
すなわち、第５図に示すように、枠型磁心１の
一脚に電流を流すことによつて生じる磁束が互い
に逆方向となる小径巻線n1と大径巻線N1とを巻
線し、上記枠型磁心１の他脚に同じく電流を流す
ことにより生じる磁束が互いに逆方向となる小径
巻線n2と大径巻線N2を巻回したものである。そ
して、小径巻線n1とn2、大径巻線N1とN2はそれ
ぞれ一本の線にて構成されて直列となつており、
この直列となる小径巻線n1とn2、大径巻線N1と
N2とは磁束が加極性となるように構成されてい
る。 That is, as shown in FIG. 5, a small-diameter winding n 1 and a large-diameter winding N 1 are wound so that the magnetic fluxes generated by passing a current through one leg of the frame-shaped magnetic core 1 are in opposite directions. , a small-diameter winding n 2 and a large-diameter winding N 2 are wound in such a manner that the magnetic fluxes generated by passing current through the other leg of the frame-shaped magnetic core 1 are opposite to each other. The small diameter windings n 1 and n 2 and the large diameter windings N 1 and N 2 are each made of one wire and are connected in series.
These small-diameter windings n 1 and n 2 are connected in series, and the large-diameter winding N 1 and
N 2 is configured so that the magnetic flux has additive polarity.
すなわち、大径巻線N1による磁束をφ1とする
と、大径巻線N2による磁束φ2となり、また、小
径巻線n1による磁束をφ1′とすると小径巻線n2の
磁束はφ2′となり、それぞれ磁束の方向が相い加
わる加極性となつている。 That is, if the magnetic flux due to the large diameter winding N 1 is φ 1 , then the magnetic flux due to the large diameter winding N 2 is φ 2 , and if the magnetic flux due to the small diameter winding n 1 is φ 1 ′, then the magnetic flux of the small diameter winding n 2 is becomes φ 2 ', and the directions of the magnetic fluxes are additive.
そして、これらの直列巻線n1とn2，N1とN2は
第６図に示すようにそれぞれ１本の線にて連続巻
線され、大径巻線N1とN2に小径巻線n1とn2を挿
入して二重層の巻線とし、これを第７図に示すよ
うにコ字状に折曲加工して、枠型磁心１の両脚に
同時に組込める構成とする。 These series windings n 1 and n 2 and N 1 and N 2 are each continuously wound with one wire as shown in Fig. 6, and the large diameter windings N 1 and N 2 are connected to the small diameter windings. The wires n 1 and n 2 are inserted to form a double layer winding, which is bent into a U-shape as shown in FIG. 7, so that it can be assembled into both legs of the frame-shaped magnetic core 1 at the same time.
このように同径の巻線を連続して１本の線で構
成することは、同じ巻線機の巻芯に連続して巻回
するだけであるため、巻線作業はきわめて効率化
できる。また、この構成によれば、２個の直列巻
線間で直流抵抗に差を生じるため、減衰特性に影
響を及ぼすことがあるが、この場合は大径巻線
N1，N2と小径巻線n1，n2の線性を変えれば対応
できる。 Constructing the winding wires of the same diameter continuously with one wire in this way allows the winding work to be made extremely efficient because the winding wires are simply wound continuously around the winding core of the same winding machine. Additionally, according to this configuration, there is a difference in DC resistance between the two series windings, which may affect the attenuation characteristics.
This can be done by changing the linearity of N 1 , N 2 and the small diameter windings n 1 , n 2 .
また、上記巻線n1とN1の開放端を電源端子t1，
t1′として交流または直流電源２に接続し、巻線
N2とn2の開放端を負荷端子t2，t2′として負荷３を
接続し、上記電源端子t1とt2間にコンデンサC1，
C1′を接続し、また、負荷端子t2，t2′間にコンデ
ンサC2，C2′を接続し、コンデンサC1とC1′および
C2とC2′のそれぞれの中間接続点を接地する。 In addition, the open ends of the above windings n 1 and N 1 are connected to the power supply terminal t 1 ,
Connect to AC or DC power supply 2 as t 1 ' and winding
A load 3 is connected using the open ends of N 2 and n 2 as load terminals t 2 and t 2 ', and capacitors C 1 and 2 are connected between the power supply terminals t 1 and t 2 .
C 1 ′ is connected, and capacitors C 2 and C 2 ′ are connected between load terminals t 2 and t 2 ′, and capacitors C 1 and C 1 ′ and
Ground the intermediate connection points of C 2 and C 2 ′.
上記コンデンサは電源端子t1，t1′間および負荷
端子t2，t2′間の両方に接続する必要はなく、いず
れか一方でもよい。 The above capacitor does not need to be connected both between the power supply terminals t 1 and t 1 ' and between the load terminals t 2 and t 2 ', and may be connected to either one.
上記構成により、小径巻線n1とn2および大径巻
線N1とN2との磁気結合度が大きく、それぞれの
巻線に生ずる磁束の方向は互いに打消す方向にな
つているため、負荷端子による磁束が飽和しにく
い。したがつて巻数が多くとれるため、端子t1，
t2またはt1′，t2′間のインダクタンス値も大きくな
り、フイルタとしての減衰効果も大きくなる。 With the above configuration, the degree of magnetic coupling between the small diameter windings n 1 and n 2 and the large diameter windings N 1 and N 2 is large, and the directions of the magnetic fluxes generated in each winding are in directions that cancel each other out. Magnetic flux due to load terminals is difficult to saturate. Therefore, since a large number of turns can be taken, the terminals t 1 ,
The inductance value between t 2 or t 1 ' and t 2 ' also increases, and the attenuation effect as a filter also increases.
発明の効果
以上のように本発明のノイズフイルタは構成さ
れることにより、巻線の結合係数が大きくとれて
減衰効果を増大でき、巻線作業も同一径のものを
連続して自動巻線できるためきわめて効率的とな
り、しかも大径巻線と小径巻線の組合せも単なる
一方向からの挿入だけできわめて容易となり、枠
型磁心への組込みも容易でコスト面でも有利とな
るなどの利点をもち、工業的価値の大なるもので
ある。Effects of the Invention By configuring the noise filter of the present invention as described above, the coupling coefficient of the winding can be increased to increase the damping effect, and the winding work can be performed automatically by continuously winding wires of the same diameter. This makes it extremely efficient, and it also has the advantage of being extremely easy to combine large-diameter and small-diameter windings by simply inserting them from one direction, making it easy to incorporate into frame-shaped magnetic cores, and being advantageous in terms of cost. , is of great industrial value.
第１図は従来のノイズフイルタの回路図、第２
図は他の従来例を示す回路図、第３図は同巻線部
の説明図、第４図は同巻線部の斜視図、第５図は
本発明のノイズフイルタの一実施例を示す回路
図、第６図、第７図は同巻線部分の組立て順序を
示す説明図である。
１……枠型磁心、n1，n2……小径巻線、N1，
N2……大径巻線、t1，t1′……電源端子、t2，t2′…
…負荷端子、C1，C1′，C2，C2′……コンデンサ。
Figure 1 is a circuit diagram of a conventional noise filter, Figure 2 is a circuit diagram of a conventional noise filter.
The figure is a circuit diagram showing another conventional example, Figure 3 is an explanatory diagram of the same winding part, Figure 4 is a perspective view of the same winding part, and Figure 5 shows one embodiment of the noise filter of the present invention. The circuit diagrams, FIGS. 6 and 7 are explanatory diagrams showing the assembly order of the same winding portion. 1...Frame-shaped magnetic core, n1 , n2 ...Small diameter winding, N1 ,
N 2 ... Large diameter winding, t 1 , t 1 ′ ... Power terminal, t 2 , t 2 ′ ...
...Load terminals, C 1 , C 1 ′, C 2 , C 2 ′...Capacitors.
Claims (1)
回され電流が流れることにより互いに逆方向の磁
束を発生させる小径巻線n1と大径巻線N1と、上
記磁心の他脚に同じく二層にして巻回され電流が
流れることによつて互いに逆方向の磁束を発生さ
せる小径巻線n2と大径巻線N2とからなり、上記
小径巻線n1とn2および大径巻線N1とN2とはそれ
ぞれ一本の線により作製されて小径巻線n1とn2お
よび大径巻線N1とN2はそれぞれ磁束が加極性と
なり、上記巻線n1とN1の開放端を電源端子とし、
また、巻線n2とN2の開放端を負荷端子とし、上
記電源端子間または負荷端子間の少なくともいず
れか一方にコンデンサを接続してなるノイズフイ
ルタ。1 A frame-shaped magnetic core, a small-diameter winding n 1 and a large-diameter winding N 1 that are wound in two layers around the monopod of the magnetic core and generate magnetic flux in opposite directions when current flows through them, and other than the above-mentioned magnetic core It consists of a small-diameter winding n 2 and a large-diameter winding N 2 that are similarly wound in two layers around the legs and generate magnetic flux in opposite directions when current flows through them, and the small-diameter windings n 1 and n 2 are similar to each other. The large-diameter windings N 1 and N 2 are each made of a single wire, and the small-diameter windings n 1 and n 2 and the large-diameter windings N 1 and N 2 have additive polarity of magnetic flux, and the above-mentioned windings Use the open ends of n 1 and N 1 as power terminals,
Also, a noise filter in which the open ends of the windings n2 and N2 are used as load terminals, and a capacitor is connected between at least one of the power supply terminals and the load terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58121802A JPS6014515A (en) | 1983-07-04 | 1983-07-04 | Noise filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58121802A JPS6014515A (en) | 1983-07-04 | 1983-07-04 | Noise filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6014515A JPS6014515A (en) | 1985-01-25 |
| JPH0133967B2 true JPH0133967B2 (en) | 1989-07-17 |
Family
ID=14820282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58121802A Granted JPS6014515A (en) | 1983-07-04 | 1983-07-04 | Noise filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014515A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5155457A (en) * | 1990-06-18 | 1992-10-13 | Matsushita Electric Industrial Co., Ltd. | Line filter assembly |
-
1983
- 1983-07-04 JP JP58121802A patent/JPS6014515A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6014515A (en) | 1985-01-25 |
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