JPS5864813A - Choke core for noise suppression filter - Google Patents
Choke core for noise suppression filterInfo
- Publication number
- JPS5864813A JPS5864813A JP16345981A JP16345981A JPS5864813A JP S5864813 A JPS5864813 A JP S5864813A JP 16345981 A JP16345981 A JP 16345981A JP 16345981 A JP16345981 A JP 16345981A JP S5864813 A JPS5864813 A JP S5864813A
- Authority
- JP
- Japan
- Prior art keywords
- cores
- core
- circuit
- closed magnetic
- magnetic circuit
- 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
- 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
- H03H1/0007—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of radio frequency interference filters
Abstract
Description
【発明の詳細な説明】
電源に電気的ノイズ発生鯨である負荷を接続した場合に
、空間にノイズ電波を放出するのみならず電源電線であ
る配電網にノイズ電流を伝播せしめ広く電波公害の元と
なった。[Detailed Description of the Invention] When a load, which is an electrical noise generator, is connected to a power source, it not only emits noise radio waves into the space, but also propagates noise current to the power distribution network, which is a source of radio wave pollution. It became.
本発明は上記ノイズの発生を防止せしめるフィルター用
チョークコアに関するものである。The present invention relates to a filter choke core that prevents the generation of the above noise.
通常、該ノイズを防止する為に使用するフィルター用チ
ョークは磁束漏洩の少ない閉磁気回路を構成するコアに
捲線を施したものである。該チョークを以てノイズ防止
フィルターを構成する場合は第一図の如く電源と負荷を
接続する二線間に夫々独立に二個のチョークを入れ、該
チョークの入出力両端にコンデンサーを結線せしめたも
のである。該チョークでノイズフィルターを構成するに
は、上記の好くチョークが二個必要となりフィルタ一本
体が大型になると共に磁気漏洩の少ない閉磁気回路を構
成するコアに捲線を施す為に捲線施行が大変面倒で手数
がかかり高価になると云う欠点があった。Normally, a filter choke used to prevent such noise has a core wound with a wire to form a closed magnetic circuit with little magnetic flux leakage. When constructing a noise prevention filter using these chokes, as shown in Figure 1, two chokes are placed independently between the two wires that connect the power supply and the load, and a capacitor is connected to both the input and output ends of the chokes. be. In order to construct a noise filter using these chokes, two of the above-mentioned chokes are required, which increases the size of the filter body, and the winding is difficult because the core that constitutes the closed magnetic circuit with little magnetic leakage is wound. The drawbacks are that it is troublesome, time-consuming, and expensive.
次に上記フィルター用チョークを改良蛯しめ、−個の閉
磁気回路を構成するコアに二個の捲線を施した第二図に
示したフィルター用チョークの場合 コアは一個で済み
小型となるが、捲線施行が大変複雑になると共１４両捲
線間に電源電圧が与えられる事による絶縁対策が必要と
なり高技術を要し高価になると云う欠点があった。又、
上記チョークの捲線施行を簡単にする為に第三図の如く
コアに捲線を施してから閉磁気回路を構成する様に該閉
磁気回路を複数のコアより組立構成すると該コア間の継
ぎ目より磁束が漏洩しフィルター効果を半減せしめるも
のであった。Next, in the case of the filter choke shown in Fig. 2, which is an improved version of the filter choke shown in Fig. 2, in which two windings are applied to the cores constituting two closed magnetic circuits, only one core is required, resulting in a smaller size. This method has the disadvantage that the winding process becomes very complicated, and insulation measures are required because a power supply voltage is applied between the 14 windings, which requires high technology and is expensive. or,
In order to simplify the winding of the choke, the core is wound as shown in Figure 3, and then the closed magnetic circuit is assembled from a plurality of cores to form a closed magnetic circuit.The magnetic flux flows from the joint between the cores. was leaked, reducing the filter's effectiveness by half.
そこで本発明は上記欠点に鑑みて発明されたフィルター
、用チョークコアであり、捲線施行を簡単にすると共に
小型で安価に製作できるチョークコアを得よるとするも
のである。SUMMARY OF THE INVENTION The present invention is a choke core for filters, which was invented in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a choke core that can be easily manufactured in a small size and at low cost while winding is simple.
次に本発明のフィルター用チョークコアを説明すると、
捲線施行を簡単にする為に閉磁気回路を複数のコアより
構成せしめ、捲線を施した後に該閉磁気回路を組立構成
せしめると共に該コア間の継ぎ目からの磁束漏洩を短絡
磁路を設ける事により防止しようとするものである。Next, the filter choke core of the present invention will be explained.
In order to simplify the winding process, the closed magnetic circuit is constructed from a plurality of cores, and the closed magnetic circuit is assembled and configured after winding, and a short-circuiting magnetic path is provided to prevent magnetic flux leakage from the joint between the cores. This is what we are trying to prevent.
そこで本発明の一実施例を第四図により詳細に説明する
と、本発明のフィルター用チョークコア本体（１）は、
複数の閉磁気回路構成コア＋２＋ ＋３１で閉磁気回路
を構成し、更に該閉磁気回路に一個又は複数の磁気短絡
路構成コア（４） （５ｉで磁気短絡路を設けたもので
ある。＋６１ ＋７１は閉磁気回路構成コア（２） ｆ
３＋に持着せしめた捲線である。Therefore, one embodiment of the present invention will be explained in detail with reference to FIG. 4. The filter choke core body (1) of the present invention has the following features:
A closed magnetic circuit is constructed by a plurality of closed magnetic circuit cores +2+ +31, and one or more magnetic short circuit cores (4) are provided in the closed magnetic circuit (5i is provided with a magnetic short circuit. +61 +71 is a closed magnetic circuit configuration core (2) f
This is the winding that was attached to the 3+.
又、第五図に示す実施例は磁気短絡路を一個とし、且該
磁気短絡路が閉磁気回路の一部を構成するものである。Further, the embodiment shown in FIG. 5 has one magnetic short circuit, and the magnetic short circuit constitutes a part of a closed magnetic circuit.
本発明は以上の如（構成され、まず電源電流が第四図の
矢印の様に流れた場合、捲線（６）により閉磁気回路構
成コア（２）に磁束凱が矢印方向に発生するが、該磁束
更、は二分しその一部！ｒは閉磁気回路構成コア（３）
を流れ、他の一部紅は磁気短絡路構成コア（４）を流れ
短絡磁束を作る。同様に捲線（７）によって磁束！２が
閉磁気回路構成コア（３）に発生し、閉磁気回路構成コ
ア（２）を流れる釘と、磁気短絡路構成コア（５）を流
れる短絡磁束Ｉ；を作る。このとき、閉磁気回路構成コ
ア（２）と閉磁気回路構成コア（３）の継ぎ目からの磁
束の漏洩は磁束！、が磁束蔓；と磁束（白こ二分され又
磁束！２が磁束蔓、′と磁束ＩＩに二分される為に、磁
気短絡路構成コア（４）及び（５）がないときに比べ磁
束密度が半減し該継き目からの磁束の漏洩は激減するも
のである。The present invention is constructed as described above. First, when the power supply current flows as shown by the arrow in FIG. 4, magnetic flux is generated in the closed magnetic circuit core (2) by the winding (6) in the direction of the arrow. The magnetic flux is divided into two parts, and r is the closed magnetic circuit core (3).
The other part of the magnetic flux flows through the magnetic short circuit forming core (4) to create a short circuit magnetic flux. Similarly, magnetic flux due to winding (7)! 2 is generated in the closed magnetic circuit core (3), creating a nail that flows through the closed magnetic circuit core (2) and a short circuit magnetic flux I that flows through the magnetic short circuit core (5). At this time, the leakage of magnetic flux from the joint between the closed magnetic circuit core (2) and the closed magnetic circuit core (3) is magnetic flux! , is divided into magnetic flux strand; and magnetic flux (white square), and magnetic flux ! is halved, and the leakage of magnetic flux from the joint is drastically reduced.
本発明のチョークコアは以上の様な作用をするので、捲
線（６）により発生する短絡磁束「と捲線（７）番こよ
り発生する短絡磁束ｘ４７は第六図の点線の如く第一図
に示した二個の独立したチョークコアから構成されるフ
ィルターと同じ効果が得られ、又捲線（６）により発生
する歪、′と捲線（７）により発生する蚤二は第六図実
線の如く第二図に示した一個のチョークコアから成るフ
ィルターと同じ効果が得られるものであり、本発明のフ
ィルター用チョークコアは従来の第−図及び第二図に示
した両チョークコアの両方の特性を共有せしめた大変優
れたフィルター用チ望−クコアといえる。Since the choke core of the present invention operates as described above, the short-circuit magnetic flux generated by the winding (6) and the short-circuit magnetic flux x47 generated from the winding (7) are shown in Figure 1 as indicated by the dotted line in Figure 6. The same effect as a filter composed of two independent choke cores can be obtained, and the distortion caused by the winding (6) and the flea caused by the winding (7) are reduced by the second filter as shown by the solid line in Figure 6. The same effect as the filter consisting of one choke core shown in the figure can be obtained, and the filter choke core of the present invention shares the characteristics of both the conventional choke cores shown in Figs. It can be said that it is a highly desirable core for filters.
又、磁気短絡路コアを設ける事により継ぎ目からの磁束
の漏洩が激減する為ζこ閉磁気回路を複数のコアで組立
構成出来るので、捲線施行が大変簡単になると云う製作
上の実利的効果も多大であるIn addition, by providing a magnetic short circuit core, the leakage of magnetic flux from the joints is drastically reduced, so a closed magnetic circuit can be assembled with multiple cores, which has the practical effect of making the winding process much easier. huge amount
第−図及び第二図は従来のフィルター用コアを示し、第
三図は閉磁路回路を複数のコアで組立構成した短絡磁路
のない場合のコアを示し、第四図及び第五図は本発明の
チョークコアを示し、第六図は磁束の流れを示す図であ
る。
付号（１）は本発明のフィルター用チョークコア本体、
＋２１＋３１は閉磁気回路構成コア、 ＋４）ｆ５＋
は磁気短絡構成コγ、 ＋６Ｍ？＋は捲線である。
特許出願人
有限会社メレヵ電、子工業
７Ａ ｉ 関
稙八回Figures 1 and 2 show a conventional filter core, Figure 3 shows a core in which a closed magnetic circuit is assembled with a plurality of cores without a short circuit magnetic path, and Figures 4 and 5 FIG. 6 shows the choke core of the present invention, and is a diagram showing the flow of magnetic flux. Number (1) is the filter choke core body of the present invention,
+21+31 is a closed magnetic circuit configuration core, +4) f5+
is the magnetic short circuit configuration γ, +6M? + is a winding wire. Patent Applicant Meleka Den Co., Ltd., Child Industry 7A i Seki Ten 8th
Claims (1)
し閉磁気回路を構成するノイズ防止用フィルター用チョ
ークのコアに於いて、該閉磁気回路に短絡磁路を設けた
ことを特徴としたノイズ防止フィルター用チョークコアIn the core of a choke for a noise prevention filter, which has a winding between the power supply double wire and the load, and which passes through the winding and constitutes a closed magnetic circuit, a short-circuit magnetic path is provided in the closed magnetic circuit. Choke core for noise prevention filter featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16345981A JPS5864813A (en) | 1981-10-15 | 1981-10-15 | Choke core for noise suppression filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16345981A JPS5864813A (en) | 1981-10-15 | 1981-10-15 | Choke core for noise suppression filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5864813A true JPS5864813A (en) | 1983-04-18 |
Family
ID=15774278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16345981A Pending JPS5864813A (en) | 1981-10-15 | 1981-10-15 | Choke core for noise suppression filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5864813A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174713U (en) * | 1985-04-22 | 1986-10-30 | ||
| WO1994010749A1 (en) * | 1992-10-30 | 1994-05-11 | Motorola Lighting Inc. | Integrated emi/rfi filter magnetics |
| US5319343A (en) * | 1990-08-21 | 1994-06-07 | Powercube Corporation | Integrated magnetic inductor having series and common mode windings |
| US6617814B1 (en) | 2001-04-11 | 2003-09-09 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
| US6987372B1 (en) | 2001-04-11 | 2006-01-17 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
| US7132812B1 (en) | 2001-04-11 | 2006-11-07 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
-
1981
- 1981-10-15 JP JP16345981A patent/JPS5864813A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174713U (en) * | 1985-04-22 | 1986-10-30 | ||
| US5319343A (en) * | 1990-08-21 | 1994-06-07 | Powercube Corporation | Integrated magnetic inductor having series and common mode windings |
| WO1994010749A1 (en) * | 1992-10-30 | 1994-05-11 | Motorola Lighting Inc. | Integrated emi/rfi filter magnetics |
| US5313176A (en) * | 1992-10-30 | 1994-05-17 | Motorola Lighting, Inc. | Integrated common mode and differential mode inductor device |
| US6617814B1 (en) | 2001-04-11 | 2003-09-09 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
| US6987372B1 (en) | 2001-04-11 | 2006-01-17 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
| US7132812B1 (en) | 2001-04-11 | 2006-11-07 | Rockwell Automation Technologies, Inc. | Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
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