JP3227831U - Noise filter, outlet and power cable - Google Patents
Noise filter, outlet and power cable Download PDFInfo
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- JP3227831U JP3227831U JP2020002215U JP2020002215U JP3227831U JP 3227831 U JP3227831 U JP 3227831U JP 2020002215 U JP2020002215 U JP 2020002215U JP 2020002215 U JP2020002215 U JP 2020002215U JP 3227831 U JP3227831 U JP 3227831U
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- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 23
- 239000000696 magnetic material Substances 0.000 claims abstract description 5
- 230000002238 attenuated effect Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
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Abstract
【課題】従来に比べてケーブル等への取り付けが容易で、減衰率を向上できる
ノイズフィルタを提供する。
【解決手段】機器にとってノイズとなる電磁波を発生するものに装着され、電磁波を減衰してノイズを取り除くノイズフィルタ１、３、５、７であって、複数の酸化物磁性材料を使用した特殊フェライトコアを備え、特殊フェライトコアは、電磁波を発生するものを囲む筒状の形状をしており、軸方向に複数分割されて互いに分離できる。
【選択図】図２PROBLEM TO BE SOLVED: To provide a noise filter which can be easily attached to a cable or the like as compared with the conventional case and can improve a damping rate.
SOLUTION: This is a noise filter 1, 3, 5, 7 which is attached to a device that generates electromagnetic waves that cause noise for equipment and attenuates electromagnetic waves to remove noise, and is a special ferrite using a plurality of oxide magnetic materials. The special ferrite core is provided with a core and has a tubular shape surrounding an electromagnetic wave generator, and can be divided into a plurality of pieces in the axial direction and separated from each other.
[Selection diagram] Fig. 2
Description
本考案は、ノイズフィルタ、コンセント及び電源ケーブルに関し、特に、機器にとってノイズとなる電磁波を発生するものに装着され、前記電磁波を減衰してノイズを取り除くノイズフィルタ等に関する。 The present invention relates to a noise filter, an outlet, and a power cable, and more particularly to a noise filter or the like which is attached to a device that generates an electromagnetic wave that causes noise for a device and attenuates the electromagnetic wave to remove the noise.
特許文献１、２に記載のように、フェライトコアを用い、電磁波を発生するものに装着され、電磁波を減衰してノイズを取り除くノイズフィルタが提案されている。特許文献１では、フェライトコアを分離して、一方にヒンジをつけて開くようにしており、電磁波を発生するケーブルを間に通して装着し、ケーブルから発生する電磁波を減衰するようにしている。特許文献２では、円筒状のフェライトコアの内部にケーブルを通して装着し、ケーブルから発生する電磁波を減衰するようにしている。 As described in Patent Documents 1 and 2, a noise filter using a ferrite core and attached to an object that generates an electromagnetic wave to attenuate the electromagnetic wave and remove noise has been proposed. In Patent Document 1, the ferrite core is separated and a hinge is attached to one side to open the ferrite core, and a cable that generates an electromagnetic wave is passed between them and attached to attenuate the electromagnetic wave generated from the cable. In Patent Document 2, a cable is passed through a cylindrical ferrite core and mounted so as to attenuate electromagnetic waves generated from the cable.
また、上記のような形状ではなく、フェライトコアを平板状のプレートの形をしたものもある。 In addition, there is also a ferrite core in the shape of a flat plate instead of the above-mentioned shape.
しかしながら、特許文献１のものは、ヒンジがあることで一方側がしっかりと固定されて固定度が確保される面がある一方で、取り付けの際、特に後からの取り付けの際にはヒンジが却って邪魔になってしまうという問題がある。また、特許文献２のものは、円筒状のものであることから、取り付けはケーブルを通す必要があり、特に後からの取り付けの際にはケーブルを外すなども必要で、特許文献１のものよりもさらに取り付けが面倒という問題がある。さらに、平板状のプレートの場合には、ケーブルに取り付けることは貼りつける形しかなく、固定度の問題があるうえに、電磁波の減衰が設置した面でしか行われずに、減衰率が悪いという問題もある。加えて、従来のフェライトコアでは、減衰率の点で、材料の配合などの改良の余地があるものであった。 However, in Patent Document 1, while there is a surface in which one side is firmly fixed and the degree of fixation is secured due to the presence of the hinge, the hinge rather interferes with the installation, especially when the installation is performed later. There is a problem that it becomes. Further, since the one of Patent Document 2 is cylindrical, it is necessary to pass a cable through it for attachment, and it is also necessary to disconnect the cable especially when attaching later, which is more than that of Patent Document 1. However, there is a problem that installation is troublesome. Furthermore, in the case of a flat plate, the only way to attach it to a cable is to attach it, which has the problem of fixing, and the electromagnetic wave is attenuated only on the installed surface, resulting in a poor attenuation rate. There is also. In addition, in the conventional ferrite core, there is room for improvement such as material composition in terms of damping rate.
ゆえに、本考案は、従来に比べてケーブル等への取り付けを容易にしたノイズフィルタ等を提供する。また、本考案は、従来に比べて減衰率を向上させたノイズフィルタ等を提供する。 Therefore, the present invention provides a noise filter or the like that can be easily attached to a cable or the like as compared with the conventional case. Further, the present invention provides a noise filter or the like having an improved attenuation rate as compared with the conventional case.
本考案の第１の観点は、機器にとってノイズとなる電磁波を発生するものに装着され、前記電磁波を減衰してノイズを取り除くノイズフィルタであって、複数の酸化物磁性材料を使用した特殊フェライトコアを備え、前記特殊フェライトコアは、前記電磁波を発生するものを囲む筒状の形状をしており、軸方向に複数分割されて互いに分離できるものである。 The first aspect of the present invention is a noise filter that is attached to a device that generates electromagnetic waves that cause noise for equipment and attenuates the electromagnetic waves to remove noise, and is a special ferrite core using a plurality of oxide magnetic materials. The special ferrite core has a tubular shape surrounding the one that generates the electromagnetic wave, and is divided into a plurality of parts in the axial direction so that they can be separated from each other.
本考案の第２の観点は、第１の観点において、前記特殊フェライトコアが、前記減衰した電磁波を熱エネルギーに変換させることを特徴とするものである。 The second aspect of the present invention is characterized in that, in the first aspect, the special ferrite core converts the attenuated electromagnetic wave into thermal energy.
本考案の第３の観点は、第２の観点において、前記特殊フェライトコアが、前記変換した熱エネルギーを大気中に開放することを特徴とするものである。 The third aspect of the present invention is characterized in that, in the second aspect, the special ferrite core releases the converted thermal energy to the atmosphere.
本考案の第４の観点では、第１から第３の観点のいずれかにおいて、前記電磁波が、高調波の電磁波である。 In the fourth aspect of the present invention, the electromagnetic wave is a harmonic electromagnetic wave in any of the first to third aspects.
本考案の第５の観点は、第１から第４の観点のいずれかに記載の電磁波を発生するものはコンセントの配線であり、第１から第４の観点のいずれかに記載のノイズフィルタを備えた、コンセントである。 The fifth aspect of the present invention is that the wiring that generates the electromagnetic wave according to any one of the first to fourth aspects is the wiring of the outlet, and the noise filter according to any one of the first to fourth aspects is used. It is a equipped outlet.
本考案の第６の観点は、第１から第４の観点のいずれかに記載の前記電磁波を発生するものはケーブルであり、第１から第４の観点のいずれかに記載のノイズフィルタを備えた、電源ケーブルである。 The sixth aspect of the present invention is that the cable that generates the electromagnetic wave according to any one of the first to fourth aspects is a cable, and the noise filter according to any one of the first to fourth aspects is provided. It is also a power cable.
本考案によれば、特殊フェライトコアが、ケーブルなどの電磁波を発生するものを囲む筒状の形状をしており、軸方向に複数分割されて互いに分離できるものであることから、取り付け易い。また、特殊フェライトコアが、筒状の形状でケーブルなどを囲むことになり、平板状の場合に比べて、電磁波を減衰し易く、さらに変換させた熱エネルギーを大気中に放出し易い。さらに、フェライトコアが、複数の酸化物磁性材料を使用した特殊フェライトコアにすることで、減衰率を高いものとでき、例えば、高調波の減衰に適したものとすることもできる。加えて、コンセントとしても、ケーブルとしても、上記のような効果を得ることができる。これにより、コンセントやケーブルのノイズとなる不安定な電磁波（高調波）を軽減できてノイズ（無効電力）を取り除くことができ、機器にはきれいな電流が流れて、機器への負担が小さくなる結果、省エネが可能になる。 According to the present invention, the special ferrite core has a tubular shape surrounding a cable or the like that generates electromagnetic waves, and is easily divided into a plurality of pieces in the axial direction so that they can be separated from each other. Further, the special ferrite core surrounds the cable or the like in a tubular shape, so that the electromagnetic wave is easily attenuated and the converted thermal energy is easily released to the atmosphere as compared with the case of the flat plate shape. Further, by making the ferrite core a special ferrite core using a plurality of oxide magnetic materials, the attenuation rate can be made high, and for example, it can be made suitable for the attenuation of harmonics. In addition, the above effects can be obtained both as an outlet and as a cable. As a result, unstable electromagnetic waves (harmonics) that cause noise in outlets and cables can be reduced and noise (invalid power) can be removed, resulting in a clean current flowing through the device and reducing the burden on the device. , Energy saving becomes possible.
図１（Ａ）及び図２（Ａ）は小サイズのものを示し、図１（Ｂ）及び図２（Ｂ）は中サイズのものを示し、図１（Ｃ）及び図２（Ｃ）は大サイズのものを示し、図１（Ｄ）及び図２（Ｄ）は特大サイズのものを示す。以下、図面を参照して、本願考案の実施例について述べる。なお、本願考案の実施の形態は、以下の実施例に限定されるものではない。 1 (A) and 2 (A) show small size, FIGS. 1 (B) and 2 (B) show medium size, and FIGS. 1 (C) and 2 (C) show medium size. Large size ones are shown, and FIGS. 1 (D) and 2 (D) show extra large size ones. Hereinafter, examples of the present invention will be described with reference to the drawings. The embodiment of the present invention is not limited to the following examples.
ノイズフィルタ１，３，５，７は、全体が筒状で、ノイズフィルタ１の外形が円柱状でノイズフィルタ３，５，７の外形が直方体であり、、いずれの内部も円柱状に空いており、図２に示すように軸方向で２つに分離できるものとなっている。この筒状部分には、高調波の電磁波をノイズとして減衰できるように複数の酸化物磁性材料を使用した特殊フェライトコアが用いられている。そして、図２に示すように２分割にできるので、図３に示すようにケーブルなどにも簡単に取り付け易いものとできている。固定には別途のバンドが用いられている。 The noise filters 1, 3, 5, and 7 have a tubular shape as a whole, the outer shape of the noise filter 1 is cylindrical, and the outer shapes of the noise filters 3, 5, and 7 are rectangular parallelepipeds. As shown in FIG. 2, it can be separated into two in the axial direction. A special ferrite core using a plurality of oxide magnetic materials is used for this tubular portion so that the electromagnetic waves of harmonics can be attenuated as noise. Since it can be divided into two as shown in FIG. 2, it can be easily attached to a cable or the like as shown in FIG. A separate band is used for fixing.
ここで、高調波の電磁波がノイズになることを説明する。一般的に、スイッチング電源などのスイッチング周波数に含まれる高調波成分（基本波の整数倍の周波数）が高調波ノイズと言われている。エネルギーレベルは、数ｍｖ〜数十ｍｖと比較的ちいさいもので、ＡＣ電源ラインのノイズ対策としては、恒常的に機器に侵入してくるノイズであり、対策が必要なものと言われている。 Here, it will be described that the electromagnetic waves of harmonics become noise. Generally, a harmonic component (frequency that is an integral multiple of the fundamental wave) included in a switching frequency of a switching power supply or the like is called harmonic noise. The energy level is relatively small, ranging from several mv to several tens of mv, and it is said that noise countermeasures for AC power lines are noise that constantly invades equipment, and countermeasures are necessary.
このような高調波の電磁波をノイズとして取り除くノイズフィルタとして、図１のノイズフィルタ１，３，５，７は、効果を発揮するものであり、実験では、設置の有無によって、無効電力を５．７２％削減できたという結果が得られている。 As a noise filter that removes such harmonic electromagnetic waves as noise, the noise filters 1, 3, 5, and 7 in FIG. 1 are effective, and in the experiment, the ineffective power was determined to be 5. The result is that the reduction was 72%.
このようなノイズ（無効電力）を取り除いて、機器にはきれいな電流が流れて、機器への負担が小さくなる結果、省エネが可能になるという効果が得られている。 By removing such noise (ineffective power), a clean current flows through the device, and as a result, the burden on the device is reduced, and as a result, energy saving is obtained.
その他の効果も説明する。特殊フェライトコアが、ケーブルなどの電磁波を発生するものを囲む筒状の形状をしており、軸方向に複数分割されて互いに分離できるものであることから、取り付け易い。また、特殊フェライトコアが、筒状の形状でケーブルなどを囲むことになり、平板状の場合に比べて、電磁波を減衰し易く、さらに変換させた熱エネルギーを大気中に放出し易い。 Other effects will also be described. The special ferrite core has a tubular shape that surrounds a cable or other device that generates electromagnetic waves, and is easily divided into multiple pieces in the axial direction so that they can be separated from each other. Further, the special ferrite core surrounds the cable or the like in a tubular shape, so that the electromagnetic wave is easily attenuated and the converted thermal energy is easily released to the atmosphere as compared with the case of the flat plate shape.
上記では、ノイズフィルタとして示したが、ノイズフィルタを備えるコンセントや電源ケーブルとしてもよい。ノイズフィルタが取り付けられる部分は、コンセントであれば、電源側などに差し込まれるプラグ（オス）と他のプラグが差し込まれる差込口（メス）との間のいずれの場所でもよいが、差し込み口が複数のプラグ対応であればあるほど、ノイズキャンセルの観点から差込口に近い部分に設けることが好ましい。 In the above, it is shown as a noise filter, but it may be an outlet or a power cable provided with a noise filter. The part where the noise filter is attached may be any place between the plug (male) that is inserted into the power supply side and the outlet (female) where other plugs are inserted, as long as it is an outlet, but the insertion port is The more a plurality of plugs are supported, the more preferably it is provided near the outlet from the viewpoint of noise cancellation.
１、３、５、７・・・ノイズフィルタ 1, 3, 5, 7 ... Noise filter
Claims (6)
複数の酸化物磁性材料を使用した特殊フェライトコアを備え、
前記特殊フェライトコアは、前記電磁波を発生するものを囲む筒状の形状をしており、軸方向に複数分割されて互いに分離できるものである、ノイズフィルタ。 A noise filter that is attached to something that generates electromagnetic waves that cause noise for equipment and attenuates the electromagnetic waves to remove noise.
Equipped with a special ferrite core using multiple oxide magnetic materials
The special ferrite core is a noise filter that has a tubular shape surrounding the one that generates the electromagnetic wave, and is divided into a plurality of parts in the axial direction and can be separated from each other.
請求項１から４のいずれかに記載のノイズフィルタを備えた、コンセント。 The wiring that generates the electromagnetic wave according to any one of claims 1 to 4 is the wiring of the outlet.
An outlet provided with the noise filter according to any one of claims 1 to 4.
請求項１から４のいずれかに記載のノイズフィルタを備えた、電源ケーブル。 The cable that generates the electromagnetic wave according to any one of claims 1 to 4 is a cable.
A power cable comprising the noise filter according to any one of claims 1 to 4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022079820A1 (en) * | 2020-10-14 | 2022-04-21 | 株式会社デラモーダ | Noise filter, and method for manufacturing ferrite core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022079820A1 (en) * | 2020-10-14 | 2022-04-21 | 株式会社デラモーダ | Noise filter, and method for manufacturing ferrite core |
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